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Bring back ChannelGroup.find(id)

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This commit is contained in:
Trustin Lee 2013-11-18 15:59:44 +09:00
parent 40003ed250
commit 780516471f
2 changed files with 57 additions and 32 deletions
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8
transport/src/main/java/io/netty/channel/group/ChannelGroup.java
View File

@ -21,6 +21,7 @@ import io.netty.buffer.ByteBufHolder;
import io.netty.buffer.Unpooled;
import io.netty.channel.Channel;
import io.netty.channel.ChannelHandlerContext;
import io.netty.channel.ChannelId;
import io.netty.channel.ChannelInboundHandlerAdapter;
import io.netty.channel.EventLoop;
import io.netty.channel.ServerChannel;
@ -100,6 +101,13 @@ public interface ChannelGroup extends Set<Channel>, Comparable<ChannelGroup> {
*/
String name();
/**
* Returns the {@link Channel} which has the specified {@link ChannelId}.
*
* @return the matching {@link Channel} if found. {@code null} otherwise.
*/
Channel find(ChannelId id);
/**
* Writes the specified {@code message} to all {@link Channel}s in this
* group. If the specified {@code message} is an instance of

81
transport/src/main/java/io/netty/channel/group/DefaultChannelGroup.java
View File

@ -20,10 +20,11 @@ import io.netty.buffer.ByteBufHolder;
import io.netty.channel.Channel;
import io.netty.channel.ChannelFuture;
import io.netty.channel.ChannelFutureListener;
import io.netty.channel.ChannelId;
import io.netty.channel.ServerChannel;
import io.netty.util.ReferenceCountUtil;
import io.netty.util.concurrent.EventExecutor;
import io.netty.util.internal.ConcurrentSet;
import io.netty.util.internal.PlatformDependent;
import io.netty.util.internal.StringUtil;
import java.util.AbstractSet;
@ -32,6 +33,7 @@ import java.util.Collection;
import java.util.Iterator;
import java.util.LinkedHashMap;
import java.util.Map;
import java.util.concurrent.ConcurrentMap;
import java.util.concurrent.atomic.AtomicInteger;
/**
@ -42,8 +44,8 @@ public class DefaultChannelGroup extends AbstractSet<Channel> implements Channel
private static final AtomicInteger nextId = new AtomicInteger();
private final String name;
private final EventExecutor executor;
private final ConcurrentSet<Channel> serverChannels = new ConcurrentSet<Channel>();
private final ConcurrentSet<Channel> nonServerChannels = new ConcurrentSet<Channel>();
private final ConcurrentMap<ChannelId, Channel> serverChannels = PlatformDependent.newConcurrentHashMap();
private final ConcurrentMap<ChannelId, Channel> nonServerChannels = PlatformDependent.newConcurrentHashMap();
private final ChannelFutureListener remover = new ChannelFutureListener() {
@Override
public void operationComplete(ChannelFuture future) throws Exception {
@ -77,6 +79,16 @@ public class DefaultChannelGroup extends AbstractSet<Channel> implements Channel
return name;
}
@Override
public Channel find(ChannelId id) {
Channel c = nonServerChannels.get(id);
if (c != null) {
return c;
} else {
return serverChannels.get(id);
}
}
@Override
public boolean isEmpty() {
return nonServerChannels.isEmpty() && serverChannels.isEmpty();
@ -92,9 +104,9 @@ public class DefaultChannelGroup extends AbstractSet<Channel> implements Channel
if (o instanceof Channel) {
Channel c = (Channel) o;
if (o instanceof ServerChannel) {
return serverChannels.contains(c);
return serverChannels.containsValue(c);
} else {
return nonServerChannels.contains(c);
return nonServerChannels.containsValue(c);
}
} else {
return false;
@ -103,10 +115,10 @@ public class DefaultChannelGroup extends AbstractSet<Channel> implements Channel
@Override
public boolean add(Channel channel) {
ConcurrentSet<Channel> set =
ConcurrentMap<ChannelId, Channel> map =
channel instanceof ServerChannel? serverChannels : nonServerChannels;
boolean added = set.add(channel);
boolean added = map.putIfAbsent(channel.id(), channel) == null;
if (added) {
channel.closeFuture().addListener(remover);
}
@ -115,17 +127,22 @@ public class DefaultChannelGroup extends AbstractSet<Channel> implements Channel
@Override
public boolean remove(Object o) {
if (!(o instanceof Channel)) {
return false;
Channel c = null;
if (o instanceof ChannelId) {
c = nonServerChannels.remove(o);
if (c == null) {
c = serverChannels.remove(o);
}
} else if (o instanceof Channel) {
c = (Channel) o;
if (c instanceof ServerChannel) {
c = serverChannels.remove(c.id());
} else {
c = nonServerChannels.remove(c.id());
}
}
boolean removed;
Channel c = (Channel) o;
if (c instanceof ServerChannel) {
removed = serverChannels.remove(c);
} else {
removed = nonServerChannels.remove(c);
}
if (!removed) {
if (c == null) {
return false;
}
@ -142,23 +159,23 @@ public class DefaultChannelGroup extends AbstractSet<Channel> implements Channel
@Override
public Iterator<Channel> iterator() {
return new CombinedIterator<Channel>(
serverChannels.iterator(),
nonServerChannels.iterator());
serverChannels.values().iterator(),
nonServerChannels.values().iterator());
}
@Override
public Object[] toArray() {
Collection<Channel> channels = new ArrayList<Channel>(size());
channels.addAll(serverChannels);
channels.addAll(nonServerChannels);
channels.addAll(serverChannels.values());
channels.addAll(nonServerChannels.values());
return channels.toArray();
}
@Override
public <T> T[] toArray(T[] a) {
Collection<Channel> channels = new ArrayList<Channel>(size());
channels.addAll(serverChannels);
channels.addAll(nonServerChannels);
channels.addAll(serverChannels.values());
channels.addAll(nonServerChannels.values());
return channels.toArray(a);
}
@ -205,7 +222,7 @@ public class DefaultChannelGroup extends AbstractSet<Channel> implements Channel
}
Map<Channel, ChannelFuture> futures = new LinkedHashMap<Channel, ChannelFuture>(size());
for (Channel c: nonServerChannels) {
for (Channel c: nonServerChannels.values()) {
if (matcher.matches(c)) {
futures.put(c, c.write(safeDuplicate(message)));
}
@ -239,12 +256,12 @@ public class DefaultChannelGroup extends AbstractSet<Channel> implements Channel
Map<Channel, ChannelFuture> futures =
new LinkedHashMap<Channel, ChannelFuture>(size());
for (Channel c: serverChannels) {
for (Channel c: serverChannels.values()) {
if (matcher.matches(c)) {
futures.put(c, c.disconnect());
}
}
for (Channel c: nonServerChannels) {
for (Channel c: nonServerChannels.values()) {
if (matcher.matches(c)) {
futures.put(c, c.disconnect());
}
@ -262,12 +279,12 @@ public class DefaultChannelGroup extends AbstractSet<Channel> implements Channel
Map<Channel, ChannelFuture> futures =
new LinkedHashMap<Channel, ChannelFuture>(size());
for (Channel c: serverChannels) {
for (Channel c: serverChannels.values()) {
if (matcher.matches(c)) {
futures.put(c, c.close());
}
}
for (Channel c: nonServerChannels) {
for (Channel c: nonServerChannels.values()) {
if (matcher.matches(c)) {
futures.put(c, c.close());
}
@ -286,12 +303,12 @@ public class DefaultChannelGroup extends AbstractSet<Channel> implements Channel
Map<Channel, ChannelFuture> futures =
new LinkedHashMap<Channel, ChannelFuture>(size());
for (Channel c: serverChannels) {
for (Channel c: serverChannels.values()) {
if (matcher.matches(c)) {
futures.put(c, c.deregister());
}
}
for (Channel c: nonServerChannels) {
for (Channel c: nonServerChannels.values()) {
if (matcher.matches(c)) {
futures.put(c, c.deregister());
}
@ -302,7 +319,7 @@ public class DefaultChannelGroup extends AbstractSet<Channel> implements Channel
@Override
public ChannelGroup flush(ChannelMatcher matcher) {
for (Channel c: nonServerChannels) {
for (Channel c: nonServerChannels.values()) {
if (matcher.matches(c)) {
c.flush();
}
@ -323,7 +340,7 @@ public class DefaultChannelGroup extends AbstractSet<Channel> implements Channel
Map<Channel, ChannelFuture> futures = new LinkedHashMap<Channel, ChannelFuture>(size());
for (Channel c: nonServerChannels) {
for (Channel c: nonServerChannels.values()) {
if (matcher.matches(c)) {
futures.put(c, c.writeAndFlush(safeDuplicate(message)));
}