/*
* 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.sling.replication.servlet;
import javax.servlet.ServletException;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Enumeration;
import java.util.List;
import org.apache.felix.scr.annotations.sling.SlingServlet;
import org.apache.sling.api.SlingHttpServletRequest;
import org.apache.sling.api.SlingHttpServletResponse;
import org.apache.sling.api.resource.ResourceResolver;
import org.apache.sling.api.servlets.SlingAllMethodsServlet;
import org.apache.sling.replication.agent.ReplicationAgent;
import org.apache.sling.replication.agent.ReplicationAgentException;
import org.apache.sling.replication.communication.ReplicationRequest;
import org.apache.sling.replication.communication.ReplicationResponse;
import org.apache.sling.replication.queue.ReplicationQueueItemState.ItemState;
import org.apache.sling.replication.resources.ReplicationConstants;
import org.apache.sling.replication.util.RequestUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* Servlet to ask {@link ReplicationAgent}s to replicate (via HTTP POST).
*/
@SlingServlet(resourceTypes = ReplicationConstants.AGENT_RESOURCE_TYPE, methods = "POST")
public class ReplicationAgentServlet extends SlingAllMethodsServlet {
private final Logger log = LoggerFactory.getLogger(getClass());
@Override
protected void doPost(SlingHttpServletRequest request, SlingHttpServletResponse response)
throws ServletException, IOException {
response.setContentType("application/json");
ReplicationRequest replicationRequest = RequestUtils.fromServletRequest(request);
ReplicationAgent agent = request.getResource().adaptTo(ReplicationAgent.class);
ResourceResolver resourceResolver = request.getResourceResolver();
if (agent != null) {
try {
ReplicationResponse replicationResponse = agent.execute(resourceResolver, replicationRequest);
if (replicationResponse.isSuccessful()) {
if (ItemState.SUCCEEDED.toString().equals(replicationResponse.getStatus())) {
response.setStatus(200);
}
if (ItemState.QUEUED.toString().equals(replicationResponse.getStatus())
|| ItemState.ACTIVE.toString().equals(
replicationResponse.getStatus())) {
response.setStatus(202);
}
}
else {
if (ItemState.DROPPED.toString().equals(replicationResponse.getStatus())) {
response.setStatus(404);
} else {
response.setStatus(400);
}
}
response.getWriter().append(replicationResponse.toString());
} catch (ReplicationAgentException e) {
response.setStatus(503);
response.getWriter().append("{\"error\" : \"").append(e.toString()).append("\"}");
}
} else {
response.setStatus(404);
response.getWriter().append("{\"error\" : \"agent ").append(request.getServletPath())
.append(" not found\"}");
}
}
String[] toStringArray(Enumeration<String> e) {
List<String> l = new ArrayList<String>();
while (e.hasMoreElements()) {
l.add(e.nextElement());
}
return l.toArray(new String[l.size()]);
}
}