package org.jolokia.handler;
/*
* Copyright 2009-2013 Roland Huss
*
* Licensed 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.
*/
import java.util.HashMap;
import java.util.Map;
import org.jolokia.config.Configuration;
import org.jolokia.converter.Converters;
import org.jolokia.detector.ServerHandle;
import org.jolokia.restrictor.Restrictor;
import org.jolokia.util.RequestType;
/**
* A request handler manager is responsible for managing so called "request handlers" which
* are used to dispatch for all command types known to Jolokia
*
* @author roland
* @since Nov 13, 2009
*/
public class RequestHandlerManager {
// Map with all json request handlers
private final Map<RequestType, JsonRequestHandler> requestHandlerMap = new HashMap<RequestType, JsonRequestHandler>();
/**
* Manager and dispatcher for incoming requests
*
* @param pConfig configuration from which to obtain agent meta information
* @param pConverters string/object converters
* @param pServerHandle server handle for obtaining MBeanServer
* @param pRestrictor handler for access restrictions
*/
public RequestHandlerManager(Configuration pConfig, Converters pConverters, ServerHandle pServerHandle, Restrictor pRestrictor) {
JsonRequestHandler handlers[] = {
new ReadHandler(pRestrictor),
new WriteHandler(pRestrictor, pConverters),
new ExecHandler(pRestrictor, pConverters),
new ListHandler(pRestrictor),
new VersionHandler(pConfig,pRestrictor, pServerHandle),
new SearchHandler(pRestrictor)
};
for (JsonRequestHandler handler : handlers) {
requestHandlerMap.put(handler.getType(),handler);
}
}
/**
* Manager and dispatcher for incoming requests
*
* @param pConverters string/object converters
* @param pServerHandle server handle for obtaining MBeanServer
* @param pRestrictor handler for access restrictions
*/
public RequestHandlerManager(Converters pConverters, ServerHandle pServerHandle, Restrictor pRestrictor) {
this(null,pConverters,pServerHandle,pRestrictor);
}
/**
* Get the request handler for the given type
*
* @param pType type of request
* @return handler which can handle requests of the given type
*/
public JsonRequestHandler getRequestHandler(RequestType pType) {
JsonRequestHandler handler = requestHandlerMap.get(pType);
if (handler == null) {
throw new UnsupportedOperationException("Unsupported operation '" + pType + "'");
}
return handler;
}
}