org.apache.activemq.util.StringArrayConverter Maven / Gradle / Ivy
/**
* 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.activemq.util;
import java.util.ArrayList;
import java.util.List;
import java.util.StringTokenizer;
/**
* Class for converting to/from String[] to be used instead of a
* {@link java.beans.PropertyEditor} which otherwise causes
* memory leaks as the JDK {@link java.beans.PropertyEditorManager}
* is a static class and has strong references to classes, causing
* problems in hot-deployment environments.
*/
public class StringArrayConverter {
public static String[] convertToStringArray(Object value) {
if (value == null) {
return null;
}
String text = value.toString();
if (text == null || text.length() == 0) {
return null;
}
StringTokenizer stok = new StringTokenizer(text, ",");
final List list = new ArrayList();
while (stok.hasMoreTokens()) {
list.add(stok.nextToken());
}
String[] array = list.toArray(new String[list.size()]);
return array;
}
public static String convertToString(String[] value) {
if (value == null || value.length == 0) {
return null;
}
StringBuffer result = new StringBuffer(String.valueOf(value[0]));
for (int i = 1; i < value.length; i++) {
result.append(",").append(value[i]);
}
return result.toString();
}
}