/*
 * 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.ode.jbi;

import javax.jbi.messaging.MessageExchange;
import javax.jbi.messaging.MessagingException;
import javax.xml.namespace.QName;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.ode.bpel.iapi.Endpoint;

/**
 * Route incoming JBI messages to Ode services
 */
class JbiMessageExchangeEventRouter implements JbiMessageExchangeProcessor {
    private static final Log __log = LogFactory.getLog(JbiMessageExchangeEventRouter.class);

    private OdeContext _ode;

    JbiMessageExchangeEventRouter(OdeContext ode) {
        _ode = ode;
    }

    public void onJbiMessageExchange(MessageExchange mex) throws MessagingException {
        if (mex.getRole().equals(javax.jbi.messaging.MessageExchange.Role.CONSUMER)) {
            _ode._consumer.onJbiMessageExchange(mex);
        } else if (mex.getRole().equals(javax.jbi.messaging.MessageExchange.Role.PROVIDER)) {

            if (OdeContext.PM_SERVICE_NAME.equals(mex.getEndpoint().getServiceName())) {
                if (_ode._processManagementProcessor == null)
                    throw new IllegalStateException("Process Management API not initialized");
                _ode._processManagementProcessor.onJbiMessageExchange(mex);
                return;
            }

            if (OdeContext.IM_SERVICE_NAME.equals(mex.getEndpoint().getServiceName())) {
                if (_ode._instanceManagementProcessor == null)
                    throw new IllegalStateException("Instance Management API not initialized");
                _ode._instanceManagementProcessor.onJbiMessageExchange(mex);
                return;
            }
            
            Endpoint endpoint = new Endpoint(mex.getEndpoint().getServiceName(), mex.getEndpoint().getEndpointName());
            OdeService svc = _ode.getService(endpoint);
            if (svc == null) {
                __log.error("Received message exchange for unknown service: " + mex.getEndpoint().getServiceName());
                return;
            }
            svc.onJbiMessageExchange(mex);
        } else {
            __log.debug("unexpected role: " + mex.getRole());
        }

    }

}