Merge pull request #350 from fredericBregier/master
Change Executor to Timer from Netty, in reference to Issue #345 in master branch
This commit is contained in:
Norman Maurer
commit
ba4736f33b
@ -15,7 +15,7 @@
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*/
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package io.netty.handler.traffic;
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import java.util.concurrent.Executor;
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import java.util.concurrent.TimeUnit;
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import java.util.concurrent.atomic.AtomicBoolean;
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import io.netty.channel.Channel;
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@ -30,7 +30,9 @@ import io.netty.handler.execution.DefaultObjectSizeEstimator;
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import io.netty.logging.InternalLogger;
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import io.netty.logging.InternalLoggerFactory;
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import io.netty.util.ExternalResourceReleasable;
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import io.netty.util.internal.ExecutorUtil;
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import io.netty.util.Timeout;
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import io.netty.util.Timer;
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import io.netty.util.TimerTask;
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/**
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* AbstractTrafficShapingHandler allows to limit the global bandwidth
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@ -41,6 +43,10 @@ import io.netty.util.internal.ExecutorUtil;
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* the method doAccounting of this handler.<br>
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* <br>
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*
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* An {@link ObjectSizeEstimator} can be passed at construction to specify what
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* is the size of the object to be read or write accordingly to the type of
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* object. If not specified, it will used the {@link DefaultObjectSizeEstimator} implementation.<br><br>
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*
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* If you want for any particular reasons to stop the monitoring (accounting) or to change
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* the read/write limit or the check interval, several methods allow that for you:<br>
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* <ul>
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@ -79,10 +85,14 @@ public abstract class AbstractTrafficShapingHandler extends
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private ObjectSizeEstimator objectSizeEstimator;
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/**
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* Executor to associated to any TrafficCounter
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* Timer to associated to any TrafficCounter
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*/
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protected Executor executor;
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protected Timer timer;
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/**
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* used in releaseExternalResources() to cancel the timer
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*/
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volatile private Timeout timeout = null;
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/**
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* Limit in B/s to apply to write
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*/
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@ -105,15 +115,16 @@ public abstract class AbstractTrafficShapingHandler extends
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*/
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final AtomicBoolean release = new AtomicBoolean(false);
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private void init(ObjectSizeEstimator newObjectSizeEstimator,
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Executor newExecutor, long newWriteLimit, long newReadLimit, long newCheckInterval) {
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objectSizeEstimator = newObjectSizeEstimator;
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executor = newExecutor;
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writeLimit = newWriteLimit;
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readLimit = newReadLimit;
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checkInterval = newCheckInterval;
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//logger.info("TSH: "+writeLimit+":"+readLimit+":"+checkInterval+":"+isPerChannel());
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}
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private void init(ObjectSizeEstimator newObjectSizeEstimator,
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Timer newTimer, long newWriteLimit, long newReadLimit,
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long newCheckInterval) {
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objectSizeEstimator = newObjectSizeEstimator;
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timer = newTimer;
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writeLimit = newWriteLimit;
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readLimit = newReadLimit;
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checkInterval = newCheckInterval;
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//logger.warn("TSH: "+writeLimit+":"+readLimit+":"+checkInterval);
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}
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/**
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*
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@ -126,8 +137,8 @@ public abstract class AbstractTrafficShapingHandler extends
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/**
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* Constructor using default {@link ObjectSizeEstimator}
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*
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* @param executor
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* created for instance like Executors.newCachedThreadPool
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* @param timer
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* created once for instance like HashedWheelTimer(10, TimeUnit.MILLISECONDS, 1024)
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* @param writeLimit
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* 0 or a limit in bytes/s
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* @param readLimit
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@ -136,10 +147,9 @@ public abstract class AbstractTrafficShapingHandler extends
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* The delay between two computations of performances for
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* channels or 0 if no stats are to be computed
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*/
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public AbstractTrafficShapingHandler(Executor executor, long writeLimit,
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public AbstractTrafficShapingHandler(Timer timer, long writeLimit,
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long readLimit, long checkInterval) {
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init(new DefaultObjectSizeEstimator(), executor, writeLimit, readLimit,
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checkInterval);
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init(new DefaultObjectSizeEstimator(), timer, writeLimit, readLimit, checkInterval);
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}
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/**
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@ -148,8 +158,8 @@ public abstract class AbstractTrafficShapingHandler extends
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* @param objectSizeEstimator
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* the {@link ObjectSizeEstimator} that will be used to compute
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* the size of the message
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* @param executor
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* created for instance like Executors.newCachedThreadPool
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* @param timer
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* created once for instance like HashedWheelTimer(10, TimeUnit.MILLISECONDS, 1024)
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* @param writeLimit
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* 0 or a limit in bytes/s
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* @param readLimit
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@ -159,26 +169,24 @@ public abstract class AbstractTrafficShapingHandler extends
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* channels or 0 if no stats are to be computed
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*/
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public AbstractTrafficShapingHandler(
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ObjectSizeEstimator objectSizeEstimator, Executor executor,
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ObjectSizeEstimator objectSizeEstimator, Timer timer,
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long writeLimit, long readLimit, long checkInterval) {
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init(objectSizeEstimator, executor, writeLimit, readLimit,
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checkInterval);
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init(objectSizeEstimator, timer, writeLimit, readLimit, checkInterval);
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}
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/**
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* Constructor using default {@link ObjectSizeEstimator} and using default Check Interval
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*
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* @param executor
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* created for instance like Executors.newCachedThreadPool
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* @param timer
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* created once for instance like HashedWheelTimer(10, TimeUnit.MILLISECONDS, 1024)
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* @param writeLimit
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* 0 or a limit in bytes/s
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* @param readLimit
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* 0 or a limit in bytes/s
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*/
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public AbstractTrafficShapingHandler(Executor executor, long writeLimit,
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public AbstractTrafficShapingHandler(Timer timer, long writeLimit,
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long readLimit) {
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init(new DefaultObjectSizeEstimator(), executor, writeLimit, readLimit,
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DEFAULT_CHECK_INTERVAL);
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init(new DefaultObjectSizeEstimator(), timer, writeLimit, readLimit, DEFAULT_CHECK_INTERVAL);
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}
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/**
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@ -187,29 +195,27 @@ public abstract class AbstractTrafficShapingHandler extends
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* @param objectSizeEstimator
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* the {@link ObjectSizeEstimator} that will be used to compute
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* the size of the message
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* @param executor
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* created for instance like Executors.newCachedThreadPool
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* @param timer
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* created once for instance like HashedWheelTimer(10, TimeUnit.MILLISECONDS, 1024)
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* @param writeLimit
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* 0 or a limit in bytes/s
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* @param readLimit
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* 0 or a limit in bytes/s
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*/
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public AbstractTrafficShapingHandler(
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ObjectSizeEstimator objectSizeEstimator, Executor executor,
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ObjectSizeEstimator objectSizeEstimator, Timer timer,
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long writeLimit, long readLimit) {
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init(objectSizeEstimator, executor, writeLimit, readLimit,
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DEFAULT_CHECK_INTERVAL);
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init(objectSizeEstimator, timer, writeLimit, readLimit, DEFAULT_CHECK_INTERVAL);
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}
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/**
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* Constructor using default {@link ObjectSizeEstimator} and using NO LIMIT and default Check Interval
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*
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* @param executor
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* created for instance like Executors.newCachedThreadPool
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* @param timer
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* created once for instance like HashedWheelTimer(10, TimeUnit.MILLISECONDS, 1024)
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*/
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public AbstractTrafficShapingHandler(Executor executor) {
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init(new DefaultObjectSizeEstimator(), executor, 0, 0,
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DEFAULT_CHECK_INTERVAL);
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public AbstractTrafficShapingHandler(Timer timer) {
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init(new DefaultObjectSizeEstimator(), timer, 0, 0, DEFAULT_CHECK_INTERVAL);
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}
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/**
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@ -218,25 +224,25 @@ public abstract class AbstractTrafficShapingHandler extends
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* @param objectSizeEstimator
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* the {@link ObjectSizeEstimator} that will be used to compute
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* the size of the message
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* @param executor
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* created for instance like Executors.newCachedThreadPool
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* @param timer
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* created once for instance like HashedWheelTimer(10, TimeUnit.MILLISECONDS, 1024)
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*/
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public AbstractTrafficShapingHandler(
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ObjectSizeEstimator objectSizeEstimator, Executor executor) {
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init(objectSizeEstimator, executor, 0, 0, DEFAULT_CHECK_INTERVAL);
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ObjectSizeEstimator objectSizeEstimator, Timer timer) {
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init(objectSizeEstimator, timer, 0, 0, DEFAULT_CHECK_INTERVAL);
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}
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/**
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* Constructor using default {@link ObjectSizeEstimator} and using NO LIMIT
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*
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* @param executor
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* created for instance like Executors.newCachedThreadPool
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* @param timer
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* created once for instance like HashedWheelTimer(10, TimeUnit.MILLISECONDS, 1024)
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* @param checkInterval
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* The delay between two computations of performances for
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* channels or 0 if no stats are to be computed
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*/
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public AbstractTrafficShapingHandler(Executor executor, long checkInterval) {
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init(new DefaultObjectSizeEstimator(), executor, 0, 0, checkInterval);
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public AbstractTrafficShapingHandler(Timer timer, long checkInterval) {
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init(new DefaultObjectSizeEstimator(), timer, 0, 0, checkInterval);
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}
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/**
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@ -245,20 +251,24 @@ public abstract class AbstractTrafficShapingHandler extends
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* @param objectSizeEstimator
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* the {@link ObjectSizeEstimator} that will be used to compute
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* the size of the message
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* @param executor
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* created for instance like Executors.newCachedThreadPool
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* @param timer
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* created once for instance like HashedWheelTimer(10, TimeUnit.MILLISECONDS, 1024)
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* @param checkInterval
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* The delay between two computations of performances for
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* channels or 0 if no stats are to be computed
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*/
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public AbstractTrafficShapingHandler(
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ObjectSizeEstimator objectSizeEstimator, Executor executor,
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ObjectSizeEstimator objectSizeEstimator, Timer timer,
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long checkInterval) {
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init(objectSizeEstimator, executor, 0, 0, checkInterval);
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init(objectSizeEstimator, timer, 0, 0, checkInterval);
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}
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/**
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* Change the underlying limitations and check interval.
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*
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* @param newWriteLimit
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* @param newReadLimit
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* @param newCheckInterval
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*/
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public void configure(long newWriteLimit, long newReadLimit,
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long newCheckInterval) {
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@ -268,6 +278,9 @@ public abstract class AbstractTrafficShapingHandler extends
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/**
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* Change the underlying limitations.
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*
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* @param newWriteLimit
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* @param newReadLimit
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*/
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public void configure(long newWriteLimit, long newReadLimit) {
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writeLimit = newWriteLimit;
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@ -279,6 +292,8 @@ public abstract class AbstractTrafficShapingHandler extends
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/**
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* Change the check interval.
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*
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* @param newCheckInterval
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*/
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public void configure(long newCheckInterval) {
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checkInterval = newCheckInterval;
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@ -300,46 +315,25 @@ public abstract class AbstractTrafficShapingHandler extends
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/**
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* Class to implement setReadable at fix time
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*/
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private class ReopenRead implements Runnable {
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/**
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* Associated ChannelHandlerContext
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*/
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private ChannelHandlerContext ctx;
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/**
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* Time to wait before clearing the channel
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*/
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private long timeToWait;
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/**
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* @param ctx
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* the associated channelHandlerContext
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* @param timeToWait
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*/
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protected ReopenRead(ChannelHandlerContext ctx, long timeToWait) {
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*/
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private class ReopenReadTimerTask implements TimerTask {
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ChannelHandlerContext ctx;
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ReopenReadTimerTask(ChannelHandlerContext ctx) {
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this.ctx = ctx;
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this.timeToWait = timeToWait;
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}
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/**
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* Truly run the waken up of the channel
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*/
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@Override
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public void run() {
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try {
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if (release.get()) {
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return;
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}
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Thread.sleep(timeToWait);
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} catch (InterruptedException e) {
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// interruption so exit
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public void run(Timeout timeoutArg) throws Exception {
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//logger.warn("Start RRTT: "+release.get());
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if (release.get()) {
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return;
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}
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// logger.info("WAKEUP!");
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/*
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logger.warn("WAKEUP! "+
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(ctx != null && ctx.getChannel() != null &&
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ctx.getChannel().isConnected()));
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*/
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if (ctx != null && ctx.getChannel() != null &&
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ctx.getChannel().isConnected()) {
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//logger.info(" setReadable TRUE: "+timeToWait);
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//logger.warn(" setReadable TRUE: ");
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// readSuspended = false;
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ctx.setAttachment(null);
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ctx.getChannel().setReadable(true);
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@ -359,7 +353,7 @@ public abstract class AbstractTrafficShapingHandler extends
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// Time is too short, so just lets continue
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return 0;
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}
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return ((bytes * 1000 / limit - interval)/10)*10;
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return ((bytes * 1000 / limit - interval) / 10) * 10;
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}
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@Override
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@ -375,17 +369,18 @@ public abstract class AbstractTrafficShapingHandler extends
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return;
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}
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// compute the number of ms to wait before reopening the channel
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long wait = getTimeToWait(readLimit, trafficCounter
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.getCurrentReadBytes(), trafficCounter.getLastTime(),
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curtime);
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if (wait > MINIMAL_WAIT) { // At least 10ms seems a minimal time in order to
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long wait = getTimeToWait(readLimit,
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trafficCounter.getCurrentReadBytes(),
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trafficCounter.getLastTime(), curtime);
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if (wait >= MINIMAL_WAIT) { // At least 10ms seems a minimal
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// time in order to
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Channel channel = arg0.getChannel();
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// try to limit the traffic
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if (channel != null && channel.isConnected()) {
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// Channel version
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if (executor == null) {
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if (timer == null) {
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// Sleep since no executor
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//logger.info("Read sleep since no executor for "+wait+" ms for "+this);
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// logger.warn("Read sleep since no timer for "+wait+" ms for "+this);
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if (release.get()) {
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return;
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}
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@ -396,11 +391,14 @@ public abstract class AbstractTrafficShapingHandler extends
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// readSuspended = true;
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arg0.setAttachment(Boolean.TRUE);
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channel.setReadable(false);
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//logger.info("Read will wakeup after "+wait+" ms "+this);
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executor.execute(new ReopenRead(arg0, wait));
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// logger.warn("Read will wakeup after "+wait+" ms "+this);
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TimerTask timerTask = new ReopenReadTimerTask(arg0);
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timeout = timer.newTimeout(timerTask, wait,
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TimeUnit.MILLISECONDS);
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} else {
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// should be waiting: but can occurs sometime so as a FIX
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//logger.info("Read sleep ok but should not be here: "+wait+" "+this);
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// should be waiting: but can occurs sometime so as
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// a FIX
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// logger.warn("Read sleep ok but should not be here: "+wait+" "+this);
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if (release.get()) {
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return;
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}
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@ -408,7 +406,7 @@ public abstract class AbstractTrafficShapingHandler extends
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}
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} else {
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// Not connected or no channel
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//logger.info("Read sleep "+wait+" ms for "+this);
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// logger.warn("Read sleep "+wait+" ms for "+this);
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if (release.get()) {
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return;
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}
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@ -433,11 +431,12 @@ public abstract class AbstractTrafficShapingHandler extends
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if (writeLimit == 0) {
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return;
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}
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// compute the number of ms to wait before continue with the channel
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long wait = getTimeToWait(writeLimit, trafficCounter
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.getCurrentWrittenBytes(), trafficCounter.getLastTime(),
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curtime);
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if (wait > MINIMAL_WAIT) {
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// compute the number of ms to wait before continue with the
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// channel
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long wait = getTimeToWait(writeLimit,
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trafficCounter.getCurrentWrittenBytes(),
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trafficCounter.getLastTime(), curtime);
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if (wait >= MINIMAL_WAIT) {
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// Global or Channel
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if (release.get()) {
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return;
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@ -450,7 +449,6 @@ public abstract class AbstractTrafficShapingHandler extends
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super.writeRequested(arg0, arg1);
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}
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}
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@Override
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public void handleDownstream(ChannelHandlerContext ctx, ChannelEvent e)
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throws Exception {
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@ -481,13 +479,14 @@ public abstract class AbstractTrafficShapingHandler extends
|
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return trafficCounter;
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}
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@Override
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public void releaseExternalResources() {
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if (trafficCounter != null) {
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trafficCounter.stop();
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}
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release.set(true);
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ExecutorUtil.terminate(executor);
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if (timeout != null) {
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timeout.cancel();
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}
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}
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@Override
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@ -15,8 +15,6 @@
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*/
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package io.netty.handler.traffic;
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import java.util.concurrent.Executor;
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import io.netty.channel.ChannelHandlerContext;
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import io.netty.channel.ChannelPipelineFactory;
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import io.netty.channel.ChannelStateEvent;
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@ -24,6 +22,7 @@ import io.netty.handler.execution.ExecutionHandler;
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import io.netty.handler.execution.MemoryAwareThreadPoolExecutor;
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import io.netty.handler.execution.OrderedMemoryAwareThreadPoolExecutor;
|
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import io.netty.handler.execution.ObjectSizeEstimator;
|
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import io.netty.util.Timer;
|
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|
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/**
|
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* This implementation of the {@link AbstractTrafficShapingHandler} is for channel
|
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@ -33,8 +32,8 @@ import io.netty.handler.execution.ObjectSizeEstimator;
|
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* <ul>
|
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* <li>Add in your pipeline a new ChannelTrafficShapingHandler, before a recommended {@link ExecutionHandler} (like
|
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* {@link OrderedMemoryAwareThreadPoolExecutor} or {@link MemoryAwareThreadPoolExecutor}).<br>
|
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* <tt>ChannelTrafficShapingHandler myHandler = new ChannelTrafficShapingHandler(executor);</tt><br>
|
||||
* executor could be created using <tt>Executors.newCachedThreadPool();</tt><br>
|
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* <tt>ChannelTrafficShapingHandler myHandler = new ChannelTrafficShapingHandler(timer);</tt><br>
|
||||
* timer could be created using <tt>HashedWheelTimer<tt><br>
|
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* <tt>pipeline.addLast("CHANNEL_TRAFFIC_SHAPING", myHandler);</tt><br><br>
|
||||
*
|
||||
* <b>Note that this handler has a Pipeline Coverage of "one" which means a new handler must be created
|
||||
@ -52,7 +51,7 @@ import io.netty.handler.execution.ObjectSizeEstimator;
|
||||
* the less precise the traffic shaping will be. It is suggested as higher value something close
|
||||
* to 5 or 10 minutes.<br>
|
||||
* </li>
|
||||
* <li>When you shutdown your application, release all the external resources like the executor
|
||||
* <li>When you shutdown your application, release all the external resources (except the timer internal itself)
|
||||
* by calling:<br>
|
||||
* <tt>myHandler.releaseExternalResources();</tt><br>
|
||||
* </li>
|
||||
@ -60,96 +59,53 @@ import io.netty.handler.execution.ObjectSizeEstimator;
|
||||
*/
|
||||
public class ChannelTrafficShapingHandler extends AbstractTrafficShapingHandler {
|
||||
|
||||
/**
|
||||
* @param executor
|
||||
* @param writeLimit
|
||||
* @param readLimit
|
||||
* @param checkInterval
|
||||
*/
|
||||
public ChannelTrafficShapingHandler(Executor executor, long writeLimit,
|
||||
public ChannelTrafficShapingHandler(Timer timer, long writeLimit,
|
||||
long readLimit, long checkInterval) {
|
||||
super(executor, writeLimit, readLimit, checkInterval);
|
||||
super(timer, writeLimit, readLimit, checkInterval);
|
||||
}
|
||||
|
||||
/**
|
||||
* @param executor
|
||||
* @param writeLimit
|
||||
* @param readLimit
|
||||
*/
|
||||
public ChannelTrafficShapingHandler(Executor executor, long writeLimit,
|
||||
public ChannelTrafficShapingHandler(Timer timer, long writeLimit,
|
||||
long readLimit) {
|
||||
super(executor, writeLimit, readLimit);
|
||||
}
|
||||
|
||||
|
||||
/**
|
||||
* @param executor
|
||||
* @param checkInterval
|
||||
*/
|
||||
public ChannelTrafficShapingHandler(Executor executor, long checkInterval) {
|
||||
super(executor, checkInterval);
|
||||
super(timer, writeLimit, readLimit);
|
||||
}
|
||||
|
||||
/**
|
||||
* @param executor
|
||||
*/
|
||||
public ChannelTrafficShapingHandler(Executor executor) {
|
||||
super(executor);
|
||||
public ChannelTrafficShapingHandler(Timer timer, long checkInterval) {
|
||||
super(timer, checkInterval);
|
||||
}
|
||||
|
||||
public ChannelTrafficShapingHandler(Timer timer) {
|
||||
super(timer);
|
||||
}
|
||||
|
||||
/**
|
||||
* @param objectSizeEstimator
|
||||
* @param executor
|
||||
* @param writeLimit
|
||||
* @param readLimit
|
||||
* @param checkInterval
|
||||
*/
|
||||
public ChannelTrafficShapingHandler(
|
||||
ObjectSizeEstimator objectSizeEstimator, Executor executor,
|
||||
ObjectSizeEstimator objectSizeEstimator, Timer timer,
|
||||
long writeLimit, long readLimit, long checkInterval) {
|
||||
super(objectSizeEstimator, executor, writeLimit, readLimit,
|
||||
super(objectSizeEstimator, timer, writeLimit, readLimit,
|
||||
checkInterval);
|
||||
}
|
||||
|
||||
/**
|
||||
* @param objectSizeEstimator
|
||||
* @param executor
|
||||
* @param writeLimit
|
||||
* @param readLimit
|
||||
*/
|
||||
public ChannelTrafficShapingHandler(
|
||||
ObjectSizeEstimator objectSizeEstimator, Executor executor,
|
||||
ObjectSizeEstimator objectSizeEstimator, Timer timer,
|
||||
long writeLimit, long readLimit) {
|
||||
super(objectSizeEstimator, executor, writeLimit, readLimit);
|
||||
super(objectSizeEstimator, timer, writeLimit, readLimit);
|
||||
}
|
||||
|
||||
/**
|
||||
* @param objectSizeEstimator
|
||||
* @param executor
|
||||
* @param checkInterval
|
||||
*/
|
||||
public ChannelTrafficShapingHandler(
|
||||
ObjectSizeEstimator objectSizeEstimator, Executor executor,
|
||||
ObjectSizeEstimator objectSizeEstimator, Timer timer,
|
||||
long checkInterval) {
|
||||
super(objectSizeEstimator, executor, checkInterval);
|
||||
super(objectSizeEstimator, timer, checkInterval);
|
||||
}
|
||||
|
||||
/**
|
||||
* @param objectSizeEstimator
|
||||
* @param executor
|
||||
*/
|
||||
public ChannelTrafficShapingHandler(
|
||||
ObjectSizeEstimator objectSizeEstimator, Executor executor) {
|
||||
super(objectSizeEstimator, executor);
|
||||
ObjectSizeEstimator objectSizeEstimator, Timer timer) {
|
||||
super(objectSizeEstimator, timer);
|
||||
}
|
||||
|
||||
|
||||
@Override
|
||||
public void channelClosed(ChannelHandlerContext ctx, ChannelStateEvent e)
|
||||
throws Exception {
|
||||
if (trafficCounter != null) {
|
||||
trafficCounter.stop();
|
||||
trafficCounter = null;
|
||||
}
|
||||
super.channelClosed(ctx, e);
|
||||
}
|
||||
@ -162,8 +118,10 @@ public class ChannelTrafficShapingHandler extends AbstractTrafficShapingHandler
|
||||
ctx.getChannel().setReadable(false);
|
||||
if (trafficCounter == null) {
|
||||
// create a new counter now
|
||||
trafficCounter = new TrafficCounter(this, executor, "ChannelTC" +
|
||||
ctx.getChannel().getId(), checkInterval);
|
||||
if (timer != null) {
|
||||
trafficCounter = new TrafficCounter(this, timer, "ChannelTC" +
|
||||
ctx.getChannel().getId(), checkInterval);
|
||||
}
|
||||
}
|
||||
if (trafficCounter != null) {
|
||||
trafficCounter.start();
|
||||
|
||||
@ -15,13 +15,12 @@
|
||||
*/
|
||||
package io.netty.handler.traffic;
|
||||
|
||||
import java.util.concurrent.Executor;
|
||||
|
||||
import io.netty.channel.ChannelHandler.Sharable;
|
||||
import io.netty.handler.execution.ExecutionHandler;
|
||||
import io.netty.handler.execution.MemoryAwareThreadPoolExecutor;
|
||||
import io.netty.handler.execution.OrderedMemoryAwareThreadPoolExecutor;
|
||||
import io.netty.handler.execution.ObjectSizeEstimator;
|
||||
import io.netty.util.Timer;
|
||||
|
||||
/**
|
||||
* This implementation of the {@link AbstractTrafficShapingHandler} is for global
|
||||
@ -31,8 +30,8 @@ import io.netty.handler.execution.ObjectSizeEstimator;
|
||||
* The general use should be as follow:<br>
|
||||
* <ul>
|
||||
* <li>Create your unique GlobalTrafficShapingHandler like:<br><br>
|
||||
* <tt>GlobalTrafficShapingHandler myHandler = new GlobalTrafficShapingHandler(executor);</tt><br><br>
|
||||
* executor could be created using <tt>Executors.newCachedThreadPool();</tt><br>
|
||||
* <tt>GlobalTrafficShapingHandler myHandler = new GlobalTrafficShapingHandler(timer);</tt><br><br>
|
||||
* timer could be created using <tt>HashedWheelTimer<tt><br>
|
||||
* <tt>pipeline.addLast("GLOBAL_TRAFFIC_SHAPING", myHandler);</tt><br><br>
|
||||
*
|
||||
* <b>Note that this handler has a Pipeline Coverage of "all" which means only one such handler must be created
|
||||
@ -52,7 +51,7 @@ import io.netty.handler.execution.ObjectSizeEstimator;
|
||||
* {@link OrderedMemoryAwareThreadPoolExecutor} or {@link MemoryAwareThreadPoolExecutor}).<br>
|
||||
* <tt>pipeline.addLast("GLOBAL_TRAFFIC_SHAPING", myHandler);</tt><br><br>
|
||||
* </li>
|
||||
* <li>When you shutdown your application, release all the external resources like the executor
|
||||
* <li>When you shutdown your application, release all the external resources (except the timer internal itself)
|
||||
* by calling:<br>
|
||||
* <tt>myHandler.releaseExternalResources();</tt><br>
|
||||
* </li>
|
||||
@ -64,96 +63,61 @@ public class GlobalTrafficShapingHandler extends AbstractTrafficShapingHandler {
|
||||
* Create the global TrafficCounter
|
||||
*/
|
||||
void createGlobalTrafficCounter() {
|
||||
TrafficCounter tc = new TrafficCounter(this, executor, "GlobalTC",
|
||||
checkInterval);
|
||||
setTrafficCounter(tc);
|
||||
tc.start();
|
||||
TrafficCounter tc;
|
||||
if (timer != null) {
|
||||
tc = new TrafficCounter(this, timer, "GlobalTC",
|
||||
checkInterval);
|
||||
setTrafficCounter(tc);
|
||||
tc.start();
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* @param executor
|
||||
* @param writeLimit
|
||||
* @param readLimit
|
||||
* @param checkInterval
|
||||
*/
|
||||
public GlobalTrafficShapingHandler(Executor executor, long writeLimit,
|
||||
public GlobalTrafficShapingHandler(Timer timer, long writeLimit,
|
||||
long readLimit, long checkInterval) {
|
||||
super(executor, writeLimit, readLimit, checkInterval);
|
||||
super(timer, writeLimit, readLimit, checkInterval);
|
||||
createGlobalTrafficCounter();
|
||||
}
|
||||
|
||||
/**
|
||||
* @param executor
|
||||
* @param writeLimit
|
||||
* @param readLimit
|
||||
*/
|
||||
public GlobalTrafficShapingHandler(Executor executor, long writeLimit,
|
||||
public GlobalTrafficShapingHandler(Timer timer, long writeLimit,
|
||||
long readLimit) {
|
||||
super(executor, writeLimit, readLimit);
|
||||
createGlobalTrafficCounter();
|
||||
}
|
||||
/**
|
||||
* @param executor
|
||||
* @param checkInterval
|
||||
*/
|
||||
public GlobalTrafficShapingHandler(Executor executor, long checkInterval) {
|
||||
super(executor, checkInterval);
|
||||
super(timer, writeLimit, readLimit);
|
||||
createGlobalTrafficCounter();
|
||||
}
|
||||
|
||||
/**
|
||||
* @param executor
|
||||
*/
|
||||
public GlobalTrafficShapingHandler(Executor executor) {
|
||||
super(executor);
|
||||
public GlobalTrafficShapingHandler(Timer timer, long checkInterval) {
|
||||
super(timer, checkInterval);
|
||||
createGlobalTrafficCounter();
|
||||
}
|
||||
|
||||
public GlobalTrafficShapingHandler(Timer timer) {
|
||||
super(timer);
|
||||
createGlobalTrafficCounter();
|
||||
}
|
||||
|
||||
/**
|
||||
* @param objectSizeEstimator
|
||||
* @param executor
|
||||
* @param writeLimit
|
||||
* @param readLimit
|
||||
* @param checkInterval
|
||||
*/
|
||||
public GlobalTrafficShapingHandler(ObjectSizeEstimator objectSizeEstimator,
|
||||
Executor executor, long writeLimit, long readLimit,
|
||||
Timer timer, long writeLimit, long readLimit,
|
||||
long checkInterval) {
|
||||
super(objectSizeEstimator, executor, writeLimit, readLimit,
|
||||
super(objectSizeEstimator, timer, writeLimit, readLimit,
|
||||
checkInterval);
|
||||
createGlobalTrafficCounter();
|
||||
}
|
||||
|
||||
/**
|
||||
* @param objectSizeEstimator
|
||||
* @param executor
|
||||
* @param writeLimit
|
||||
* @param readLimit
|
||||
*/
|
||||
public GlobalTrafficShapingHandler(ObjectSizeEstimator objectSizeEstimator,
|
||||
Executor executor, long writeLimit, long readLimit) {
|
||||
super(objectSizeEstimator, executor, writeLimit, readLimit);
|
||||
Timer timer, long writeLimit, long readLimit) {
|
||||
super(objectSizeEstimator, timer, writeLimit, readLimit);
|
||||
createGlobalTrafficCounter();
|
||||
}
|
||||
|
||||
/**
|
||||
* @param objectSizeEstimator
|
||||
* @param executor
|
||||
* @param checkInterval
|
||||
*/
|
||||
public GlobalTrafficShapingHandler(ObjectSizeEstimator objectSizeEstimator,
|
||||
Executor executor, long checkInterval) {
|
||||
super(objectSizeEstimator, executor, checkInterval);
|
||||
Timer timer, long checkInterval) {
|
||||
super(objectSizeEstimator, timer, checkInterval);
|
||||
createGlobalTrafficCounter();
|
||||
}
|
||||
|
||||
/**
|
||||
* @param objectSizeEstimator
|
||||
* @param executor
|
||||
*/
|
||||
public GlobalTrafficShapingHandler(ObjectSizeEstimator objectSizeEstimator,
|
||||
Executor executor) {
|
||||
super(objectSizeEstimator, executor);
|
||||
Timer timer) {
|
||||
super(objectSizeEstimator, timer);
|
||||
createGlobalTrafficCounter();
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
@ -15,11 +15,14 @@
|
||||
*/
|
||||
package io.netty.handler.traffic;
|
||||
|
||||
import java.util.concurrent.Executor;
|
||||
import java.util.concurrent.TimeUnit;
|
||||
import java.util.concurrent.atomic.AtomicBoolean;
|
||||
import java.util.concurrent.atomic.AtomicLong;
|
||||
|
||||
import io.netty.channel.ChannelHandlerContext;
|
||||
import io.netty.util.Timeout;
|
||||
import io.netty.util.Timer;
|
||||
import io.netty.util.TimerTask;
|
||||
|
||||
/**
|
||||
* TrafficCounter is associated with {@link AbstractTrafficShapingHandler}.<br>
|
||||
@ -97,27 +100,31 @@ public class TrafficCounter {
|
||||
/**
|
||||
* The associated TrafficShapingHandler
|
||||
*/
|
||||
private AbstractTrafficShapingHandler trafficShapingHandler;
|
||||
private final AbstractTrafficShapingHandler trafficShapingHandler;
|
||||
|
||||
/**
|
||||
* Default Executor
|
||||
* One Timer for all Counter
|
||||
*/
|
||||
private Executor executor;
|
||||
private final Timer timer; // replace executor
|
||||
/**
|
||||
* Monitor created once in start()
|
||||
*/
|
||||
private TimerTask timerTask;
|
||||
/**
|
||||
* used in stop() to cancel the timer
|
||||
*/
|
||||
volatile private Timeout timeout = null;
|
||||
|
||||
/**
|
||||
* Is Monitor active
|
||||
*/
|
||||
AtomicBoolean monitorActive = new AtomicBoolean();
|
||||
|
||||
/**
|
||||
* Monitor
|
||||
*/
|
||||
private TrafficMonitoring trafficMonitoring;
|
||||
|
||||
/**
|
||||
* Class to implement monitoring at fix delay
|
||||
*/
|
||||
private static class TrafficMonitoring implements Runnable {
|
||||
*
|
||||
*/
|
||||
private static class TrafficMonitoringTask implements TimerTask {
|
||||
/**
|
||||
* The associated TrafficShapingHandler
|
||||
*/
|
||||
@ -132,43 +139,30 @@ public class TrafficCounter {
|
||||
* @param trafficShapingHandler
|
||||
* @param counter
|
||||
*/
|
||||
protected TrafficMonitoring(
|
||||
protected TrafficMonitoringTask(
|
||||
AbstractTrafficShapingHandler trafficShapingHandler,
|
||||
TrafficCounter counter) {
|
||||
trafficShapingHandler1 = trafficShapingHandler;
|
||||
this.counter = counter;
|
||||
}
|
||||
|
||||
/**
|
||||
* Default run
|
||||
*/
|
||||
@Override
|
||||
public void run() {
|
||||
try {
|
||||
Thread.currentThread().setName(counter.name);
|
||||
for (; counter.monitorActive.get();) {
|
||||
long check = counter.checkInterval.get();
|
||||
if (check > 0) {
|
||||
Thread.sleep(check);
|
||||
} else {
|
||||
// Delay goes to 0, so exit
|
||||
return;
|
||||
}
|
||||
long endTime = System.currentTimeMillis();
|
||||
counter.resetAccounting(endTime);
|
||||
if (trafficShapingHandler1 != null) {
|
||||
trafficShapingHandler1.doAccounting(counter);
|
||||
}
|
||||
}
|
||||
} catch (InterruptedException e) {
|
||||
// End of computations
|
||||
public void run(Timeout timeout) throws Exception {
|
||||
if (!counter.monitorActive.get()) {
|
||||
return;
|
||||
}
|
||||
long endTime = System.currentTimeMillis();
|
||||
counter.resetAccounting(endTime);
|
||||
if (trafficShapingHandler1 != null) {
|
||||
trafficShapingHandler1.doAccounting(counter);
|
||||
}
|
||||
timeout =
|
||||
counter.timer.newTimeout(this, counter.checkInterval.get(), TimeUnit.MILLISECONDS);
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Start the monitoring process
|
||||
*/
|
||||
*/
|
||||
public void start() {
|
||||
synchronized (lastTime) {
|
||||
if (monitorActive.get()) {
|
||||
@ -177,16 +171,16 @@ public class TrafficCounter {
|
||||
lastTime.set(System.currentTimeMillis());
|
||||
if (checkInterval.get() > 0) {
|
||||
monitorActive.set(true);
|
||||
trafficMonitoring = new TrafficMonitoring(
|
||||
trafficShapingHandler, this);
|
||||
executor.execute(trafficMonitoring);
|
||||
timerTask = new TrafficMonitoringTask(trafficShapingHandler, this);
|
||||
timeout =
|
||||
timer.newTimeout(timerTask, checkInterval.get(), TimeUnit.MILLISECONDS);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Stop the monitoring process
|
||||
*/
|
||||
*/
|
||||
public void stop() {
|
||||
synchronized (lastTime) {
|
||||
if (!monitorActive.get()) {
|
||||
@ -197,6 +191,9 @@ public class TrafficCounter {
|
||||
if (trafficShapingHandler != null) {
|
||||
trafficShapingHandler.doAccounting(this);
|
||||
}
|
||||
if (timeout != null) {
|
||||
timeout.cancel();
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
@ -222,20 +219,20 @@ public class TrafficCounter {
|
||||
}
|
||||
|
||||
/**
|
||||
* Constructor with the {@link AbstractTrafficShapingHandler} that hosts it, the executorService to use, its
|
||||
* Constructor with the {@link AbstractTrafficShapingHandler} that hosts it, the Timer to use, its
|
||||
* name, the checkInterval between two computations in millisecond
|
||||
* @param trafficShapingHandler the associated AbstractTrafficShapingHandler
|
||||
* @param executor
|
||||
* Should be a CachedThreadPool for efficiency
|
||||
* @param timer
|
||||
* Could be a HashedWheelTimer
|
||||
* @param name
|
||||
* the name given to this monitor
|
||||
* @param checkInterval
|
||||
* the checkInterval in millisecond between two computations
|
||||
*/
|
||||
public TrafficCounter(AbstractTrafficShapingHandler trafficShapingHandler,
|
||||
Executor executor, String name, long checkInterval) {
|
||||
Timer timer, String name, long checkInterval) {
|
||||
this.trafficShapingHandler = trafficShapingHandler;
|
||||
this.executor = executor;
|
||||
this.timer = timer;
|
||||
this.name = name;
|
||||
lastCumulativeTime = System.currentTimeMillis();
|
||||
configure(checkInterval);
|
||||
@ -248,7 +245,7 @@ public class TrafficCounter {
|
||||
* @param newcheckInterval
|
||||
*/
|
||||
public void configure(long newcheckInterval) {
|
||||
long newInterval = (newcheckInterval/10)*10;
|
||||
long newInterval = (newcheckInterval / 10) * 10;
|
||||
if (checkInterval.get() != newInterval) {
|
||||
checkInterval.set(newInterval);
|
||||
if (newInterval <= 0) {
|
||||
|
||||
@ -17,26 +17,28 @@
|
||||
/**
|
||||
* Implementation of a Traffic Shaping Handler and Dynamic Statistics.<br>
|
||||
* <br><br>
|
||||
*
|
||||
*
|
||||
* <P>The main goal of this package is to allow to shape the traffic (bandwidth limitation),
|
||||
* but also to get statistics on how many bytes are read or written. Both functions can
|
||||
* be active or inactive (traffic or statistics).</P>
|
||||
*
|
||||
* <P>Two classes implement this behavior:<br>
|
||||
* <ul>
|
||||
* <li> <tt>{@link io.netty.handler.traffic.TrafficCounter}</tt>: this class implements the counters needed by the handlers.
|
||||
* <li> <tt>{@link TrafficCounter}</tt>: this class implements the counters needed by the handlers.
|
||||
* It can be accessed to get some extra information like the read or write bytes since last check, the read and write
|
||||
* bandwidth from last check...</li><br><br>
|
||||
*
|
||||
* <li> <tt>{@link io.netty.handler.traffic.AbstractTrafficShapingHandler}</tt>: this abstract class implements the kernel
|
||||
* <li> <tt>{@link AbstractTrafficShapingHandler}</tt>: this abstract class implements the kernel
|
||||
* of the traffic shaping. It could be extended to fit your needs. Two classes are proposed as default
|
||||
* implementations: see {@link io.netty.handler.traffic.ChannelTrafficShapingHandler} and see {@link io.netty.handler.traffic.GlobalTrafficShapingHandler}
|
||||
* implementations: see {@link ChannelTrafficShapingHandler} and see {@link GlobalTrafficShapingHandler}
|
||||
* respectively for Channel traffic shaping and Global traffic shaping.</li><br><br>
|
||||
*
|
||||
* The insertion in the pipeline of one of those handlers can be wherever you want, but
|
||||
* <b>it must be placed before any <tt>{@link io.netty.handler.execution.MemoryAwareThreadPoolExecutor}</tt>
|
||||
* in your pipeline</b>.<br>
|
||||
* <b><i>It is really recommended to have such a</i> <tt>{@link io.netty.handler.execution.MemoryAwareThreadPoolExecutor}</tt>
|
||||
* <i>(either non ordered or </i> <tt>{@link io.netty.handler.execution.OrderedMemoryAwareThreadPoolExecutor}</tt>
|
||||
* <b>it must be placed before any <tt>{@link MemoryAwareThreadPoolExecutor}</tt>
|
||||
* in your pipeline</b>.</li><br>
|
||||
* <b><i>It is really recommended to have such a</i> <tt>{@link MemoryAwareThreadPoolExecutor}</tt>
|
||||
* <i>(either non ordered or </i> <tt>{@link OrderedMemoryAwareThreadPoolExecutor}</tt>
|
||||
* <i>) in your pipeline</i></b>
|
||||
* when you want to use this feature with some real traffic shaping, since it will allow to relax the constraint on
|
||||
* NioWorker to do other jobs if necessary.<br>
|
||||
@ -48,9 +50,9 @@
|
||||
* 60KB/s for each channel since NioWorkers are stopping by this handler.<br>
|
||||
* When it is used as a read traffic shaper, the handler will set the channel as not readable, so as to relax the
|
||||
* NioWorkers.<br><br>
|
||||
* An {@link io.netty.util.ObjectSizeEstimator} can be passed at construction to specify what
|
||||
* An {@link ObjectSizeEstimator} can be passed at construction to specify what
|
||||
* is the size of the object to be read or write accordingly to the type of
|
||||
* object. If not specified, it will used the {@link io.netty.util.DefaultObjectSizeEstimator} implementation.<br><br>
|
||||
* object. If not specified, it will used the {@link DefaultObjectSizeEstimator} implementation.<br><br>
|
||||
* </ul></P>
|
||||
*
|
||||
* <P>Standard use could be as follow:</P>
|
||||
@ -60,27 +62,27 @@
|
||||
* [Global or per Channel] [Write or Read] Limitation in byte/s.</li><br>
|
||||
* A value of <tt>0</tt>
|
||||
* stands for no limitation, so the traffic shaping is deactivate (on what you specified).<br>
|
||||
* You can either change those values with the method <tt>configure</tt> in {@link io.netty.handler.traffic.AbstractTrafficShapingHandler}.<br>
|
||||
* You can either change those values with the method <tt>configure</tt> in {@link AbstractTrafficShapingHandler}.<br>
|
||||
* <br>
|
||||
*
|
||||
* <li>To activate or deactivate the statistics, you can adjust the delay to a low (suggested not less than 200ms
|
||||
* for efficiency reasons) or a high value (let say 24H in millisecond is huge enough to not get the problem)
|
||||
* or even using <tt>0</tt> which means no computation will be done.</li><br>
|
||||
* If you want to do anything with this statistics, just override the <tt>doAccounting</tt> method.<br>
|
||||
* This interval can be changed either from the method <tt>configure</tt> in {@link io.netty.handler.traffic.AbstractTrafficShapingHandler}
|
||||
* or directly using the method <tt>configure</tt> of {@link io.netty.handler.traffic.TrafficCounter}.<br><br>
|
||||
* This interval can be changed either from the method <tt>configure</tt> in {@link AbstractTrafficShapingHandler}
|
||||
* or directly using the method <tt>configure</tt> of {@link TrafficCounter}.<br><br>
|
||||
*
|
||||
* </ul></P><br><br>
|
||||
*
|
||||
* <P>So in your application you will create your own TrafficShapingHandler and set the values to fit your needs.</P>
|
||||
* <tt>XXXXXTrafficShapingHandler myHandler = new XXXXXTrafficShapingHandler(executor);</tt><br><br>
|
||||
* where executor could be created using <tt>Executors.newCachedThreadPool();</tt> and XXXXX could be either
|
||||
* <tt>XXXXXTrafficShapingHandler myHandler = new XXXXXTrafficShapingHandler(timer);</tt><br><br>
|
||||
* timer could be created using <tt>HashedWheelTimer<tt> and XXXXX could be either
|
||||
* Global or Channel<br>
|
||||
* <tt>pipeline.addLast("XXXXX_TRAFFIC_SHAPING", myHandler);</tt><br>
|
||||
* <tt>...</tt><br>
|
||||
* <tt>pipeline.addLast("MemoryExecutor",new ExecutionHandler(memoryAwareThreadPoolExecutor));</tt><br><br>
|
||||
* <P>Note that a new {@link io.netty.handler.traffic.ChannelTrafficShapingHandler} must be created for each new channel,
|
||||
* but only one {@link io.netty.handler.traffic.GlobalTrafficShapingHandler} must be created for all channels.</P>
|
||||
* <P>Note that a new {@link ChannelTrafficShapingHandler} must be created for each new channel,
|
||||
* but only one {@link GlobalTrafficShapingHandler} must be created for all channels.</P>
|
||||
*
|
||||
* <P>Note also that you can create different GlobalTrafficShapingHandler if you want to separate classes of
|
||||
* channels (for instance either from business point of view or from bind address point of view).</P>
|
||||
|
||||
Loading…
Reference in New Issue
Block a user