com.sun.jersey.core.impl.provider.header.EntityTagProvider Maven / Gradle / Ivy
/*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
*
* Copyright (c) 2010-2011 Oracle and/or its affiliates. All rights reserved.
*
* The contents of this file are subject to the terms of either the GNU
* General Public License Version 2 only ("GPL") or the Common Development
* and Distribution License("CDDL") (collectively, the "License"). You
* may not use this file except in compliance with the License. You can
* obtain a copy of the License at
* http://glassfish.java.net/public/CDDL+GPL_1_1.html
* or packager/legal/LICENSE.txt. See the License for the specific
* language governing permissions and limitations under the License.
*
* When distributing the software, include this License Header Notice in each
* file and include the License file at packager/legal/LICENSE.txt.
*
* GPL Classpath Exception:
* Oracle designates this particular file as subject to the "Classpath"
* exception as provided by Oracle in the GPL Version 2 section of the License
* file that accompanied this code.
*
* Modifications:
* If applicable, add the following below the License Header, with the fields
* enclosed by brackets [] replaced by your own identifying information:
* "Portions Copyright [year] [name of copyright owner]"
*
* Contributor(s):
* If you wish your version of this file to be governed by only the CDDL or
* only the GPL Version 2, indicate your decision by adding "[Contributor]
* elects to include this software in this distribution under the [CDDL or GPL
* Version 2] license." If you don't indicate a single choice of license, a
* recipient has the option to distribute your version of this file under
* either the CDDL, the GPL Version 2 or to extend the choice of license to
* its licensees as provided above. However, if you add GPL Version 2 code
* and therefore, elected the GPL Version 2 license, then the option applies
* only if the new code is made subject to such option by the copyright
* holder.
*/
package com.sun.jersey.core.impl.provider.header;
import com.sun.jersey.core.header.reader.HttpHeaderReader;
import com.sun.jersey.core.header.reader.HttpHeaderReader.Event;
import com.sun.jersey.spi.HeaderDelegateProvider;
import java.text.ParseException;
import javax.ws.rs.core.EntityTag;
/**
*
* @author [email protected]
*/
public class EntityTagProvider implements HeaderDelegateProvider {
public boolean supports(Class type) {
return type == EntityTag.class;
}
public String toString(EntityTag header) {
StringBuilder b = new StringBuilder();
if (header.isWeak())
b.append("W/");
WriterUtil.appendQuoted(b,header.getValue());
return b.toString();
}
public EntityTag fromString(String header) {
if (header == null)
throw new IllegalArgumentException("Entity tag is null");
try {
HttpHeaderReader reader = HttpHeaderReader.newInstance(header);
Event e = reader.next(false);
if (e == Event.QuotedString) {
return new EntityTag(reader.getEventValue());
} else if (e == Event.Token) {
if (reader.getEventValue().equals("W")) {
reader.nextSeparator('/');
return new EntityTag(reader.nextQuotedString(), true);
}
}
} catch (ParseException ex) {
throw new IllegalArgumentException(
"Error parsing entity tag '" + header + "'", ex);
}
throw new IllegalArgumentException(
"Error parsing entity tag '" + header + "'");
}
}