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# | ||
# Licensed to the Apache Software Foundation (ASF) under one or more | ||
# contributor license agreements. See the NOTICE file distributed with | ||
# this work for additional information regarding copyright ownership. | ||
# The ASF licenses this file to You under the Apache License, Version 2.0 | ||
# (the "License"); you may not use this file except in compliance with | ||
# the License. You may obtain a copy of the License at | ||
# | ||
# http://www.apache.org/licenses/LICENSE-2.0 | ||
# | ||
# Unless required by applicable law or agreed to in writing, software | ||
# distributed under the License is distributed on an "AS IS" BASIS, | ||
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
# See the License for the specific language governing permissions and | ||
# limitations under the License. | ||
# | ||
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github: | ||
description: APM, Application Performance Monitoring System | ||
homepage: https://skywalking.apache.org/ | ||
labels: | ||
- skywalking | ||
- observability | ||
- apm | ||
- distributed-tracing | ||
- service-mesh | ||
- dapper |
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69 changes: 69 additions & 0 deletions
69
...n/java/org/apache/skywalking/apm/commons/datacarrier/buffer/ArrayBlockingQueueBuffer.java
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/* | ||
* Licensed to the Apache Software Foundation (ASF) under one or more | ||
* contributor license agreements. See the NOTICE file distributed with | ||
* this work for additional information regarding copyright ownership. | ||
* The ASF licenses this file to You under the Apache License, Version 2.0 | ||
* (the "License"); you may not use this file except in compliance with | ||
* the License. You may obtain a copy of the License at | ||
* | ||
* http://www.apache.org/licenses/LICENSE-2.0 | ||
* | ||
* Unless required by applicable law or agreed to in writing, software | ||
* distributed under the License is distributed on an "AS IS" BASIS, | ||
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
* See the License for the specific language governing permissions and | ||
* limitations under the License. | ||
* | ||
*/ | ||
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package org.apache.skywalking.apm.commons.datacarrier.buffer; | ||
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import java.util.List; | ||
import java.util.concurrent.ArrayBlockingQueue; | ||
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/** | ||
* The buffer implementation based on JDK ArrayBlockingQueue. | ||
* | ||
* This implementation has better performance in server side. We are still trying to research whether this is suitable | ||
* for agent side, which is more sensitive about blocks. | ||
* | ||
* @author wusheng | ||
*/ | ||
public class ArrayBlockingQueueBuffer<T> implements QueueBuffer<T> { | ||
private BufferStrategy strategy; | ||
private ArrayBlockingQueue<T> queue; | ||
private int bufferSize; | ||
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ArrayBlockingQueueBuffer(int bufferSize, BufferStrategy strategy) { | ||
this.strategy = strategy; | ||
this.queue = new ArrayBlockingQueue<T>(bufferSize); | ||
this.bufferSize = bufferSize; | ||
} | ||
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@Override public boolean save(T data) { | ||
switch (strategy) { | ||
case IF_POSSIBLE: | ||
return queue.offer(data); | ||
default: | ||
try { | ||
queue.put(data); | ||
} catch (InterruptedException e) { | ||
// Ignore the error | ||
return false; | ||
} | ||
} | ||
return true; | ||
} | ||
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@Override public void setStrategy(BufferStrategy strategy) { | ||
this.strategy = strategy; | ||
} | ||
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@Override public void obtain(List<T> consumeList) { | ||
queue.drainTo(consumeList); | ||
} | ||
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@Override public int getBufferSize() { | ||
return bufferSize; | ||
} | ||
} |
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*/ | ||
public enum BufferStrategy { | ||
BLOCKING, | ||
OVERRIDE, | ||
IF_POSSIBLE | ||
} |
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