external/storm-hdfs/src/main/java/org/apache/storm/hdfs/bolt/sync/CountSyncPolicy.java

/**
 * 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.storm.hdfs.bolt.sync;

import org.apache.storm.tuple.Tuple;

/**
 * SyncPolicy implementation that will trigger a
 * file system sync after a certain number of tuples
 * have been processed.
 */
public class CountSyncPolicy implements SyncPolicy {
    private int count;
    private int executeCount = 0;

    public CountSyncPolicy(int count) {
        this.count = count;
    }

    @Override
    public boolean mark(Tuple tuple, long offset) {
        this.executeCount++;
        return this.executeCount >= this.count;
    }

    @Override
    public void reset() {
        this.executeCount = 0;
    }
}