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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.
*/
package com.datatorrent.bufferserver.policy;
import java.util.Set;
import com.datatorrent.bufferserver.internal.PhysicalNode;
import com.datatorrent.bufferserver.util.SerializedData;
/**
*
* Implements policy of giving a tuple to all nodes
*
* Is a broadcast policy. Extends the base class {@link com.datatorrent.bufferserver.policy.AbstractPolicy}
*
* @since 0.3.2
*/
public class GiveAll extends AbstractPolicy
{
private static final GiveAll instance = new GiveAll();
/**
*
* @return {@link com.datatorrent.bufferserver.policy.GiveAll}
*/
public static GiveAll getInstance()
{
return instance;
}
/**
*
*
* @param nodes Set of downstream {@link com.datatorrent.bufferserver.PhysicalNode}s
* @param data Opaque {@link com.datatorrent.bufferserver.util.SerializedData} to be send
* @return true if blocked, false otherwise
* @throws InterruptedException
*/
@Override
public boolean distribute(Set nodes, SerializedData data) throws InterruptedException
{
boolean retval = true;
for (PhysicalNode node: nodes) {
retval = node.send(data) & retval;
}
return retval;
}
}