/**
* Licensed to Jasig under one or more contributor license
* agreements. See the NOTICE file distributed with this work
* for additional information regarding copyright ownership.
* Jasig 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.jasig.portal.rendering.xslt;
import java.util.LinkedHashMap;
import java.util.List;
import java.util.Map;
import java.util.Properties;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.jasig.portal.utils.cache.CacheKey;
import org.jasig.portal.utils.cache.CacheKey.CacheKeyBuilder;
/**
* Merges the results of multiple {@link TransformerConfigurationSource}s
*
* @author Eric Dalquist
* @version $Revision$
*/
public class MergingTransformerConfigurationSource implements TransformerConfigurationSource {
private List<TransformerConfigurationSource> sources;
public void setSources(List<TransformerConfigurationSource> sources) {
this.sources = sources;
}
/* (non-Javadoc)
* @see org.jasig.portal.rendering.xslt.TransformerConfigurationSource#getTransformerConfigurationKey(javax.servlet.http.HttpServletRequest, javax.servlet.http.HttpServletResponse)
*/
@Override
public CacheKey getCacheKey(HttpServletRequest request, HttpServletResponse response) {
final CacheKeyBuilder cacheKeyBuilder = CacheKey.builder(this.getClass().getName());
for (final TransformerConfigurationSource source : this.sources) {
final CacheKey key = source.getCacheKey(request, response);
cacheKeyBuilder.add(key);
}
return cacheKeyBuilder.build();
}
/* (non-Javadoc)
* @see org.jasig.portal.rendering.xslt.TransformerConfigurationSource#getTransformerOutputProperties(javax.servlet.http.HttpServletRequest, javax.servlet.http.HttpServletResponse)
*/
@Override
public Properties getOutputProperties(HttpServletRequest request, HttpServletResponse response) {
final Properties mergedProperties = new Properties();
for (final TransformerConfigurationSource source : this.sources) {
final Properties properties = source.getOutputProperties(request, response);
if (properties != null) {
mergedProperties.putAll(properties);
}
}
return mergedProperties;
}
/* (non-Javadoc)
* @see org.jasig.portal.rendering.xslt.TransformerConfigurationSource#getTransformerParameters(javax.servlet.http.HttpServletRequest, javax.servlet.http.HttpServletResponse)
*/
@Override
public Map<String, Object> getParameters(HttpServletRequest request, HttpServletResponse response) {
final Map<String, Object> mergedParameters = new LinkedHashMap<String, Object>();
for (final TransformerConfigurationSource source : this.sources) {
final Map<String, Object> parameters = source.getParameters(request, response);
if (parameters != null) {
mergedParameters.putAll(parameters);
}
}
return mergedParameters;
}
}