org.jboss.wsf.stack.cxf.configuration.SysPropUtils Maven / Gradle / Ivy
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* Copyright 2014, Red Hat Middleware LLC, and individual contributors
* as indicated by the @author tags. See the copyright.txt file in the
* distribution for a full listing of individual contributors.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This software is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.jboss.wsf.stack.cxf.configuration;
public class SysPropUtils
{
public static final String DELIMITER = "@";
public static String expandSystemProperty(String value)
{
if (isEmpty(value))
{
return value;
}
final int startIndx = value.indexOf(DELIMITER);
if (startIndx > -1)
{
final int endIndx = value.lastIndexOf(DELIMITER);
if (endIndx > -1 && startIndx + 1 < endIndx)
{
final String propName = value.substring(startIndx + 1, endIndx);
if (!isEmpty(propName))
{
final String envValue = System.getProperty(propName);
if (!isEmpty(envValue))
{
StringBuilder sb = new StringBuilder();
sb.append(value.substring(0, startIndx));
sb.append(envValue);
sb.append(value.substring(endIndx + 1));
value = sb.toString();
}
}
}
}
return value;
}
private static boolean isEmpty(String str)
{
if (str != null)
{
int len = str.length();
for (int x = 0; x < len; ++x)
{
if (str.charAt(x) > ' ')
{
return false;
}
}
}
return true;
}
}