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Removed cyclic dependencies

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This commit is contained in:
Trustin Lee 2009-01-08 05:44:33 +00:00
parent 027b8b7f73
commit c043e2bf1c
2 changed files with 12 additions and 51 deletions
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57
src/main/java/org/jboss/netty/util/MapUtil.java
View File

@ -28,9 +28,6 @@ import java.util.LinkedHashMap;
import java.util.List;
import java.util.Map;
import org.jboss.netty.logging.InternalLogger;
import org.jboss.netty.logging.InternalLoggerFactory;
/**
* A set of utility methods related with a {@link Map}.
*
@ -40,8 +37,6 @@ import org.jboss.netty.logging.InternalLoggerFactory;
* @version $Rev$, $Date$
*/
public class MapUtil {
private static final InternalLogger logger =
InternalLoggerFactory.getInstance(MapUtil.class);
/**
* Returns {@code true} if and only if the specified {@code map} is an
@ -51,81 +46,53 @@ public class MapUtil {
public static boolean isOrderedMap(Map<?, ?> map) {
Class<?> mapType = map.getClass();
if (LinkedHashMap.class.isAssignableFrom(mapType)) {
if (logger.isDebugEnabled()) {
logger.debug(mapType.getSimpleName() + " is an ordered map.");
}
// LinkedHashMap is an ordered map.
return true;
}
if (logger.isDebugEnabled()) {
logger.debug(
mapType.getName() + " is not a " +
LinkedHashMap.class.getSimpleName());
}
// Not a LinkedHashMap - start autodetection.
// Detect Apache Commons Collections OrderedMap implementations.
Class<?> type = mapType;
while (type != null) {
for (Class<?> i: type.getInterfaces()) {
if (i.getName().endsWith("OrderedMap")) {
if (logger.isDebugEnabled()) {
logger.debug(
mapType.getSimpleName() +
" is an ordered map (guessed from that it " +
" implements OrderedMap interface.)");
}
// Seems like it's an ordered map - guessed from that
// it implements OrderedMap interface.
return true;
}
}
type = type.getSuperclass();
}
if (logger.isDebugEnabled()) {
logger.debug(
mapType.getName() +
" does not implement OrderedMap interface.");
}
// Last resort: try to create a new instance and test if it maintains
// the insertion order.
logger.debug(
"Last resort; trying to create a new map instance with a " +
"default constructor and test if insertion order is " +
"maintained.");
// Does not implement OrderedMap interface. As a last resort, try to
// create a new instance and test if the insertion order is maintained.
Map newMap;
try {
newMap = (Map) mapType.newInstance();
} catch (Exception e) {
if (logger.isDebugEnabled()) {
logger.debug(
"Failed to create a new map instance of '" +
mapType.getName() +"'.", e);
}
// No default constructor - cannot proceed anymore.
return false;
}
// Run some tests.
List<String> expectedKeys = new ArrayList<String>();
String dummyValue = "dummyValue";
for (int i = 0; i < ORDER_TEST_SAMPLES.length; i ++) {
String key = String.valueOf(ORDER_TEST_SAMPLES[i]);
for (short element: ORDER_TEST_SAMPLES) {
String key = String.valueOf(element);
newMap.put(key, dummyValue);
expectedKeys.add(key);
Iterator<String> it = expectedKeys.iterator();
for (Object actualKey: newMap.keySet()) {
if (!it.next().equals(actualKey)) {
if (logger.isDebugEnabled()) {
logger.debug(
"The specified map didn't pass the insertion " +
"order test after " + (i + 1) + " tries.");
}
// Did not pass the test.
return false;
}
}
}
logger.debug("The specified map passed the insertion order test.");
// The specified map passed the insertion order test.
return true;
}

6
src/main/java/org/jboss/netty/util/ThreadRenamingRunnable.java
View File

@ -22,8 +22,6 @@
*/
package org.jboss.netty.util;
import org.jboss.netty.logging.InternalLogger;
import org.jboss.netty.logging.InternalLoggerFactory;
/**
* Meta {@link Runnable} that changes the current thread name and reverts it
@ -36,8 +34,6 @@ import org.jboss.netty.logging.InternalLoggerFactory;
*
*/
public class ThreadRenamingRunnable implements Runnable {
private static final InternalLogger logger =
InternalLoggerFactory.getInstance(ThreadRenamingRunnable.class);
private final Runnable runnable;
private final String threadName;
@ -69,8 +65,6 @@ public class ThreadRenamingRunnable implements Runnable {
renamed = true;
} catch (Exception e) {
// Probably SecurityException.
logger.warn(
"Failed to set the current thread name.", e);
}
// Run the actual runnable and revert the name back when it ends.