/*
* Copyright 2014 cruxframework.org.
*
* 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.cruxframework.crux.core.server.rest.util.header;
import org.cruxframework.crux.core.server.rest.core.EntityTag;
/**
* @author <a href="mailto:bill@burkecentral.com">Bill Burke</a>
* @version $Revision: 1 $
*/
public class EntityTagHeaderParser
{
public static EntityTag fromString(String value) throws IllegalArgumentException
{
if (value == null) throw new IllegalArgumentException("value of EntityTag is null");
if (value.startsWith("\""))
{
value = value.substring(1);
}
if (value.endsWith("\""))
{
value = value.substring(0, value.length() - 1);
}
if (value.startsWith("W/"))
{
return new EntityTag(value.substring(2), true);
}
return new EntityTag(value);
}
public static String toString(EntityTag value)
{
String weak = value.isWeak() ? "W/" : "";
return weak + value.getValue();
}
}