/*
* 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 WARRANTIESOR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
package org.osgi.util.pushstream;
import java.util.concurrent.BlockingQueue;
import java.util.concurrent.Executor;
abstract class AbstractBufferBuilder<R, T, U extends BlockingQueue<PushEvent< ? extends T>>>
implements BufferBuilder<R,T,U> {
protected Executor worker;
protected int concurrency;
protected PushbackPolicy<T,U> backPressure;
protected QueuePolicy<T,U> bufferingPolicy;
protected U buffer;
@Override
public BufferBuilder<R,T,U> withBuffer(U queue) {
this.buffer = queue;
return this;
}
@Override
public BufferBuilder<R,T,U> withQueuePolicy(
QueuePolicy<T,U> queuePolicy) {
this.bufferingPolicy = queuePolicy;
return this;
}
@Override
public BufferBuilder<R,T,U> withQueuePolicy(
QueuePolicyOption queuePolicyOption) {
this.bufferingPolicy = queuePolicyOption.getPolicy();
return this;
}
@Override
public BufferBuilder<R,T,U> withPushbackPolicy(
PushbackPolicy<T,U> pushbackPolicy) {
this.backPressure = pushbackPolicy;
return this;
}
@Override
public BufferBuilder<R,T,U> withPushbackPolicy(
PushbackPolicyOption pushbackPolicyOption, long time) {
this.backPressure = pushbackPolicyOption.getPolicy(time);
return this;
}
@Override
public BufferBuilder<R,T,U> withParallelism(int parallelism) {
this.concurrency = parallelism;
return this;
}
@Override
public BufferBuilder<R,T,U> withExecutor(Executor executor) {
this.worker = executor;
return this;
}
}