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/*
* 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.qpid.server.management.plugin.servlet.rest;
import java.io.BufferedWriter;
import java.io.IOException;
import java.io.Writer;
import java.util.Enumeration;
import java.util.HashMap;
import java.util.Map;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.apache.qpid.server.management.plugin.servlet.rest.action.ListAccessControlProviderAttributes;
import org.apache.qpid.server.management.plugin.servlet.rest.action.ListAuthenticationProviderAttributes;
import org.apache.qpid.server.management.plugin.servlet.rest.action.ListBrokerAttribute;
import org.apache.qpid.server.management.plugin.servlet.rest.action.ListGroupProviderAttributes;
import org.apache.qpid.server.management.plugin.servlet.rest.action.ListTimeZones;
import org.apache.qpid.server.model.Broker;
import org.codehaus.jackson.map.ObjectMapper;
import org.codehaus.jackson.map.SerializationConfig;
public class HelperServlet extends AbstractServlet
{
private static final long serialVersionUID = 1L;
private static final String PARAM_ACTION = "action";
private Map<String, Action> _actions;
private ObjectMapper _mapper;
public HelperServlet()
{
_mapper = new ObjectMapper();
_mapper.configure(SerializationConfig.Feature.INDENT_OUTPUT, true);
Action[] supportedActions = {
new ListAuthenticationProviderAttributes(),
new ListBrokerAttribute(Broker.SUPPORTED_VIRTUALHOSTNODE_TYPES, "ListVirtualHostNodeTypes"),
new ListBrokerAttribute(Broker.SUPPORTED_VIRTUALHOST_TYPES, "ListVirtualHostTypes"),
new ListBrokerAttribute(Broker.SUPPORTED_PREFERENCES_PROVIDER_TYPES, "ListPreferencesProvidersTypes"),
new ListBrokerAttribute(Broker.PRODUCT_VERSION, "version"),
new ListGroupProviderAttributes(),
new ListAccessControlProviderAttributes(),
new PluginClassProviderAction(),
new ListTimeZones()
};
_actions = new HashMap<String, Action>();
for(Action action : supportedActions)
{
_actions.put(action.getName(), action);
}
}
@Override
protected void doGetWithSubjectAndActor(HttpServletRequest request, HttpServletResponse response) throws ServletException,
IOException
{
perform(request, response);
}
@Override
protected void doPostWithSubjectAndActor(HttpServletRequest request, HttpServletResponse response) throws ServletException,
IOException
{
perform(request, response);
}
private void perform(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException
{
String actionName = request.getParameter(PARAM_ACTION);
Action action = _actions.get(actionName);
if (action == null)
{
response.setStatus(HttpServletResponse.SC_NOT_FOUND);
return;
}
Map<String, Object> parameters = new HashMap<String, Object>();
@SuppressWarnings("unchecked")
Enumeration<String> names = request.getParameterNames();
while (names.hasMoreElements())
{
String name = (String) names.nextElement();
String[] values = request.getParameterValues(name);
if (values.length == 1)
{
parameters.put(name, values[0]);
}
else
{
parameters.put(name, values);
}
}
Object output = action.perform(parameters, getBroker());
if (output == null)
{
response.setStatus(HttpServletResponse.SC_NOT_FOUND);
return;
}
response.setContentType("application/json");
final Writer writer = new BufferedWriter(response.getWriter());
_mapper.writeValue(writer, output);
response.setStatus(HttpServletResponse.SC_OK);
}
}
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