Converts an array of Strings to a comma-sperated-list.
/*
* Copyright (c) 2006/2007 Flipperwing Ltd. (http://www.flipperwing.com)
*
* 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 org.gwm.splice.client.util;
import java.util.ArrayList;
/**
* Helper methods for Strings.
*
* @author Andy Scholz (andy.scholz@gmail.com)
*
*/
public class StringUtils {
/**
* Converts an array of Strings to a comma-sperated-list.
*
* @param vals
* @return
*/
public static String arrayToCSL(String[] vals) {
if(vals == null) {
return null;
}
String csl = null;
boolean first = true;
for (int i = 0; i < vals.length; i++) {
if(vals[i] != null) {
if(first) {
csl = vals[i];
first = false;
}
else {
csl = "," + vals[i];
}
}
}
return csl;
}
/**
* Parses a comma-seperated-list into an array;
*
* @param csl
* @return
*/
public static String[] cslToArray(String csl) {
if(csl == null) {
return null;
}
ArrayList list = new ArrayList();
String[] vals = csl.split(",");
for (int i = 0; i < vals.length; i++) {
String val = vals[i].trim();
if(val.length() > 0) {
list.add(val);
}
}
String[] sl = new String[list.size()];
for (int i = 0; i < sl.length; i++) {
sl[i] = (String) list.get(i);
}
return sl;
// seems GWT compiler dont like this.....
//return (String[]) list.toArray(new String[list.size()]);
}
}
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