/**
* Licensed to Apereo under one or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information regarding copyright ownership. Apereo
* 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 the
* following location:
*
* <p>http://www.apache.org/licenses/LICENSE-2.0
*
* <p>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.apereo.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.apereo.portal.utils.cache.CacheKey;
import org.apereo.portal.utils.cache.CacheKey.CacheKeyBuilder;
/**
* Merges the results of multiple {@link TransformerConfigurationSource}s
*
*/
public class MergingTransformerConfigurationSource implements TransformerConfigurationSource {
private List<TransformerConfigurationSource> sources;
public void setSources(List<TransformerConfigurationSource> sources) {
this.sources = sources;
}
/* (non-Javadoc)
* @see org.apereo.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.apereo.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.apereo.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;
}
}