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/*
 * Copyright 2012 International Business Machines Corp.
 * 
 * See the NOTICE file distributed with this work for additional information
 * regarding copyright ownership. Licensed 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.ibm.jbatch.container.impl;

import com.ibm.jbatch.jsl.model.Chunk;

public class ChunkHelper {

	public static int getItemCount(Chunk chunk) {
		String chunkSizeStr = chunk.getItemCount();
		int size = 10;
		
		if (chunkSizeStr != null && !chunkSizeStr.isEmpty()) {
			size = Integer.valueOf(chunk.getItemCount());
		} 
		
		chunk.setItemCount(Integer.toString(size));
		return size;
	}
    
    public static int getTimeLimit(Chunk chunk){    
		String chunkTimeLimitStr = chunk.getTimeLimit();
		int timeLimit = 0; //default time limit = 0 seconds ie no timelimit
		
		if (chunkTimeLimitStr != null && !chunkTimeLimitStr.isEmpty()) {
			timeLimit = Integer.valueOf(chunk.getTimeLimit());
		} 
		
		chunk.setTimeLimit(Integer.toString(timeLimit));
		return timeLimit;
    }
    
    public static boolean isCustomCheckpointPolicy(Chunk chunk) {
		String checkpointPolicy = chunk.getCheckpointPolicy();
		
		if (checkpointPolicy != null && !checkpointPolicy.isEmpty()) {
			if (checkpointPolicy.equals("item")) {
				return false;
			} else if (checkpointPolicy.equals("custom")) {
				return true;
			} else {
				throw new IllegalArgumentException("The only supported attributed values for 'checkpoint-policy' are 'item' and 'custom'.");				
			}
		} else {
			return false;
		}
    }
    
    public static int getSkipLimit(Chunk chunk) {
    	return Integer.valueOf(chunk.getSkipLimit());
    }
    
    public static int getRetryLimit(Chunk chunk) {
    	return Integer.valueOf(chunk.getRetryLimit());
    }
    
}




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