/*
* 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.alibaba.jstorm.hdfs.trident;
import backtype.storm.task.IMetricsContext;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import storm.trident.state.State;
import storm.trident.state.StateFactory;
import java.util.Map;
public class HdfsStateFactory implements StateFactory {
private static final Logger LOG = LoggerFactory.getLogger(HdfsStateFactory.class);
private HdfsState.Options options;
public HdfsStateFactory(){}
public HdfsStateFactory withOptions(HdfsState.Options options){
this.options = options;
return this;
}
@Override
public State makeState(Map conf, IMetricsContext metrics, int partitionIndex, int numPartitions) {
LOG.info("makeState(partitonIndex={}, numpartitions={}", partitionIndex, numPartitions);
HdfsState state = new HdfsState(this.options);
state.prepare(conf, metrics, partitionIndex, numPartitions);
return state;
}
}