/*
* Copyright (c) 2005-2010, WSO2 Inc. (http://www.wso2.org) All Rights Reserved.
*
* WSO2 Inc. 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.synapse.rest.dispatch;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.synapse.MessageContext;
import org.apache.synapse.rest.*;
import java.util.*;
public class URLMappingBasedDispatcher implements RESTDispatcher {
private static final Log log = LogFactory.getLog(URLMappingBasedDispatcher.class);
public Resource findResource(MessageContext synCtx, Collection<Resource> resources) {
List<URLMappingHelper> mappings = new ArrayList<URLMappingHelper>();
List<Resource> filteredResources = new ArrayList<Resource>();
for (Resource r : resources) {
DispatcherHelper helper = r.getDispatcherHelper();
if (helper instanceof URLMappingHelper) {
mappings.add((URLMappingHelper) helper);
filteredResources.add(r);
}
}
int count = filteredResources.size();
if (count == 0) {
return null;
}
String url = RESTUtils.getSubRequestPath(synCtx);
for (int i = 0; i < count; i++) {
if (mappings.get(i).isExactMatch(url)) {
if (log.isDebugEnabled()) {
log.debug("Found exact URL match for: " + url);
}
return filteredResources.get(i);
}
}
int maxLength = 0;
Resource matchedResource = null;
for (int i = 0; i < count; i++) {
int length = mappings.get(i).getPrefixMatchingLength(url);
if (length > maxLength) {
maxLength = length;
matchedResource = filteredResources.get(i);
}
}
if (matchedResource != null) {
if (log.isDebugEnabled()) {
log.debug("Found path match for: " + url + " with matching length: " + maxLength);
}
return matchedResource;
}
for (int i = 0; i < count; i++) {
if (mappings.get(i).isExtensionMatch(url)) {
if (log.isDebugEnabled()) {
log.debug("Found extension match for: " + url);
}
return filteredResources.get(i);
}
}
return null;
}
}