Util.java
/*
* Copyright (C) 2010 eXo Platform SAS.
*
* 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.exoplatform.services.portletcache;
import java.util.Arrays;
import java.util.Collections;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;
/**
* @author <a href="mailto:julien.viet@exoplatform.com">Julien Viet</a>
* @version $Revision$
*/
class Util
{
static Map<String, String[]> clone(Map<String, String[]> map)
{
if (map.isEmpty())
{
return Collections.emptyMap();
}
Map<String, String[]> copy = new HashMap<String, String[]>(map);
for (Map.Entry<String, String[]> entry : copy.entrySet())
{
entry.setValue(entry.getValue().clone());
}
return copy;
}
static int hashCode(Map<String, String[]> map)
{
int hashCode = 0;
if (map.size() > 0)
{
for (Map.Entry<String, String[]> parameter : map.entrySet())
{
int parameterHashCode = parameter.getKey().hashCode();
for (String parameterValue : parameter.getValue())
{
parameterHashCode = parameterHashCode * 43 + parameterValue.hashCode();
}
hashCode = hashCode * 43 + parameterHashCode;
}
}
return hashCode;
}
static boolean equals(Map<String, String[]> map1, Map<String, String[]> map2)
{
if (map1.keySet().equals(map2.keySet()))
{
for (Map.Entry<String, String[]> parameter : map1.entrySet())
{
String[] thatParameterValues = map2.get(parameter.getKey());
if (thatParameterValues != null)
{
if (!Arrays.equals(parameter.getValue(), thatParameterValues))
{
return false;
}
}
}
return true;
}
return false;
}
static void toString(Map<String, String[]> map, StringBuilder sb)
{
sb.append('{');
for (Iterator<Map.Entry<String, String[]>> i = map.entrySet().iterator();i.hasNext();)
{
Map.Entry<String, String[]> entry = i.next();
sb.append(entry.getKey()).append('=').append('[');
String[] value = entry.getValue();
for (int j = 0;j < value.length;j++)
{
if (j > 0)
{
sb.append(',');
}
sb.append(value[j]);
}
sb.append(']');
if (i.hasNext())
{
sb.append(',');
}
}
sb.append('}');
}
}