/*
* 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.
*/
package org.apache.flink.runtime.io.network.util;
import org.apache.flink.core.memory.MemorySegment;
import org.apache.flink.runtime.io.network.buffer.Buffer;
import org.apache.flink.runtime.io.network.buffer.BufferProvider;
import org.apache.flink.runtime.io.network.buffer.BufferRecycler;
import org.apache.flink.runtime.util.event.EventListener;
import java.io.IOException;
import java.util.concurrent.ConcurrentLinkedQueue;
public class TestInfiniteBufferProvider implements BufferProvider {
private final ConcurrentLinkedQueue<Buffer> buffers = new ConcurrentLinkedQueue<Buffer>();
private final TestBufferFactory bufferFactory = new TestBufferFactory(
32 * 1024, new InfiniteBufferProviderRecycler(buffers));
@Override
public Buffer requestBuffer() throws IOException {
Buffer buffer = buffers.poll();
if (buffer != null) {
return buffer;
}
return bufferFactory.create();
}
@Override
public Buffer requestBufferBlocking() throws IOException, InterruptedException {
return requestBuffer();
}
@Override
public boolean addListener(EventListener<Buffer> listener) {
return false;
}
@Override
public boolean isDestroyed() {
return false;
}
@Override
public int getMemorySegmentSize() {
return bufferFactory.getBufferSize();
}
private static class InfiniteBufferProviderRecycler implements BufferRecycler {
private final ConcurrentLinkedQueue<Buffer> buffers;
public InfiniteBufferProviderRecycler(ConcurrentLinkedQueue<Buffer> buffers) {
this.buffers = buffers;
}
@Override
public void recycle(MemorySegment segment) {
buffers.add(new Buffer(segment, this));
}
}
}