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INT-3719: AbstractMessageChannel Optimizations

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JIRA: https://jira.spring.io/browse/INT-3719

YourKit profiling for a lightweight XD stream indicates a large
amount of time in `AMC.send()`.

- Only call `logger.isDebugEnabled()` once
- Eliminate the need to create an `UnmodifiableList` and calling `size()` to get the size of the interceptor list.

Polishing

INT-3719: Fix (PR Comment)
This commit is contained in:
Gary Russell
2015-05-19 14:54:27 +01:00
committed by Artem Bilan
parent 5cf66df775
commit 98d191cba1
1 changed files with 30 additions and 9 deletions
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39
spring-integration-core/src/main/java/org/springframework/integration/channel/AbstractMessageChannel.java
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@@ -413,10 +413,11 @@ public abstract class AbstractMessageChannel extends IntegrationObjectSupport
if (this.datatypes.length > 0) {
message = this.convertPayloadIfNecessary(message);
}
if (logger.isDebugEnabled()) {
boolean debugEnabled = logger.isDebugEnabled();
if (debugEnabled) {
logger.debug("preSend on channel '" + this + "', message: " + message);
}
if (interceptors.getInterceptors().size() > 0) {
if (interceptors.getSize() > 0) {
interceptorStack = new ArrayDeque<ChannelInterceptor>();
message = interceptors.preSend(message, this, interceptorStack);
if (message == null) {
@@ -431,7 +432,8 @@ public abstract class AbstractMessageChannel extends IntegrationObjectSupport
channelMetrics.afterSend(metrics, sent);
metricsProcessed = true;
}
if (logger.isDebugEnabled()) {
if (debugEnabled) {
logger.debug("postSend (sent=" + sent + ") on channel '" + this + "', message: " + message);
}
if (interceptorStack != null) {
@@ -508,6 +510,8 @@ public abstract class AbstractMessageChannel extends IntegrationObjectSupport
private final List<ChannelInterceptor> interceptors = new CopyOnWriteArrayList<ChannelInterceptor>();
private volatile int size;
public ChannelInterceptorList(Log logger) {
this.logger = logger;
}
@@ -515,21 +519,28 @@ public abstract class AbstractMessageChannel extends IntegrationObjectSupport
public boolean set(List<ChannelInterceptor> interceptors) {
synchronized (this.interceptors) {
this.interceptors.clear();
this.size = interceptors.size();
return this.interceptors.addAll(interceptors);
}
}
public int getSize() {
return this.size;
}
public boolean add(ChannelInterceptor interceptor) {
this.size++;
return this.interceptors.add(interceptor);
}
public void add(int index, ChannelInterceptor interceptor) {
this.size++;
this.interceptors.add(index, interceptor);
}
public Message<?> preSend(Message<?> message, MessageChannel channel,
Deque<ChannelInterceptor> interceptorStack) {
if (this.interceptors.size() > 0) {
if (this.size > 0) {
for (ChannelInterceptor interceptor : this.interceptors) {
message = interceptor.preSend(message, channel);
if (message == null) {
@@ -547,7 +558,7 @@ public abstract class AbstractMessageChannel extends IntegrationObjectSupport
}
public void postSend(Message<?> message, MessageChannel channel, boolean sent) {
if (this.interceptors.size() > 0) {
if (this.size > 0) {
for (ChannelInterceptor interceptor : interceptors) {
interceptor.postSend(message, channel, sent);
}
@@ -568,7 +579,7 @@ public abstract class AbstractMessageChannel extends IntegrationObjectSupport
}
public boolean preReceive(MessageChannel channel, Deque<ChannelInterceptor> interceptorStack) {
if (this.interceptors.size() > 0) {
if (this.size > 0) {
for (ChannelInterceptor interceptor : interceptors) {
if (!interceptor.preReceive(channel)) {
afterReceiveCompletion(null, channel, null, interceptorStack);
@@ -581,7 +592,7 @@ public abstract class AbstractMessageChannel extends IntegrationObjectSupport
}
public Message<?> postReceive(Message<?> message, MessageChannel channel) {
if (this.interceptors.size() > 0) {
if (this.size > 0) {
for (ChannelInterceptor interceptor : interceptors) {
message = interceptor.postReceive(message, channel);
if (message == null) {
@@ -610,11 +621,21 @@ public abstract class AbstractMessageChannel extends IntegrationObjectSupport
}
public boolean remove(ChannelInterceptor interceptor) {
return this.interceptors.remove(interceptor);
if (this.interceptors.remove(interceptor)) {
this.size--;
return true;
}
else {
return false;
}
}
public ChannelInterceptor remove(int index) {
return this.interceptors.remove(index);
ChannelInterceptor removed = this.interceptors.remove(index);
if (removed != null) {
this.size--;
}
return removed;
}
}