/**
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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.apache.hadoop.gateway.filter.rewrite.ext;
import org.apache.hadoop.gateway.filter.rewrite.api.UrlRewriteEnvironment;
import org.apache.hadoop.gateway.filter.rewrite.spi.UrlRewriteContext;
import org.apache.hadoop.gateway.filter.rewrite.spi.UrlRewriteStepProcessor;
import org.apache.hadoop.gateway.filter.rewrite.spi.UrlRewriteStepStatus;
import org.apache.hadoop.gateway.util.urltemplate.Expander;
import org.apache.hadoop.gateway.util.urltemplate.Parser;
import org.apache.hadoop.gateway.util.urltemplate.Template;
public class UrlRewriteActionRewriteProcessorExt
implements UrlRewriteStepProcessor<UrlRewriteActionRewriteDescriptorExt> {
private Template template;
private Expander expander;
@Override
public String getType() {
return "rewrite";
}
@Override
public void initialize( UrlRewriteEnvironment environment, UrlRewriteActionRewriteDescriptorExt descriptor ) throws Exception {
this.expander = new Expander();
this.template = Parser.parse( descriptor.parameter() );
}
@Override
public UrlRewriteStepStatus process( UrlRewriteContext context ) throws Exception {
Template rewritten = expander.expandToTemplate( template, context.getParameters(), context.getEvaluator() );
context.setCurrentUrl( rewritten );
return UrlRewriteStepStatus.SUCCESS;
}
@Override
public void destroy() {
}
}