org.xchain.namespaces.servlet.RedirectCommand.java Source code

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Here is the source code for org.xchain.namespaces.servlet.RedirectCommand.java

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/**
 *    Copyright 2011 meltmedia
 *
 *    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.xchain.namespaces.servlet;

import javax.servlet.http.HttpServletResponse;

import org.apache.commons.jxpath.JXPathContext;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.xchain.Command;
import org.xchain.annotations.Attribute;
import org.xchain.annotations.AttributeType;
import org.xchain.annotations.Element;
import org.xchain.annotations.PrefixMapping;

/**
 * @author Mike Moulton
 * @author Jason Rose
 * @author Josh Kennedy
 */
@Element(localName = "redirect")
public abstract class RedirectCommand implements Command {

    public static Logger log = LoggerFactory.getLogger(ForwardCommand.class);

    @Attribute(localName = "path", type = AttributeType.JXPATH_VALUE)
    public abstract String getPath(JXPathContext context);

    @Attribute(localName = "response", type = AttributeType.JXPATH_VALUE, defaultValue = "$"
            + Constants.DEFAULT_PREFIX + ":" + Constants.RESPONSE, defaultPrefixMappings = {
                    @PrefixMapping(uri = Constants.URI, prefix = Constants.DEFAULT_PREFIX) })
    public abstract HttpServletResponse getResponse(JXPathContext context);

    public boolean execute(JXPathContext context) throws Exception {
        HttpServletResponse response = getResponse(context);
        response.setStatus(HttpServletResponse.SC_MOVED_TEMPORARILY);
        response.setHeader("Location", getPath(context));

        return false;
    }
}