/*
* 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.storm.util;
import org.apache.storm.tuple.Values;
/**
* Implements a Spout that reads data stored in memory.
*/
public class InMemorySpout<T> extends AbstractLineSpout {
private static final long serialVersionUID = -4008858647468647019L;
protected T[] source;
protected int counter = 0;
public InMemorySpout(T[] source) {
this.source = source;
}
@Override
public void nextTuple() {
if (this.counter < source.length) {
this.collector.emit(new Values(source[this.counter++]));
}
}
}