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1   /*
2    * Copyright 2006-2007 the original author or authors.
3    *
4    * Licensed under the Apache License, Version 2.0 (the "License");
5    * you may not use this file except in compliance with the License.
6    * You may obtain a copy of the License at
7    *
8    *      http://www.apache.org/licenses/LICENSE-2.0
9    *
10   * Unless required by applicable law or agreed to in writing, software
11   * distributed under the License is distributed on an "AS IS" BASIS,
12   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13   * See the License for the specific language governing permissions and
14   * limitations under the License.
15   */
16  package org.springframework.batch.item.file.transform;
17  
18  import org.springframework.util.StringUtils;
19  
20  /**
21   * A {@link LineAggregator} implementation that converts an object into a
22   * delimited list of strings. The default delimiter is a comma.
23   * 
24   * @author Dave Syer
25   * 
26   */
27  public class DelimitedLineAggregator<T> extends ExtractorLineAggregator<T> {
28  
29  	private String delimiter = ",";
30  
31  	/**
32  	 * Public setter for the delimiter.
33  	 * @param delimiter the delimiter to set
34  	 */
35  	public void setDelimiter(String delimiter) {
36  		this.delimiter = delimiter;
37  	}
38  
39  	@Override
40  	public String doAggregate(Object[] fields) {
41  		return StringUtils.arrayToDelimitedString(fields, this.delimiter);
42  	}
43  
44  }