/*
 * 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.bpel.engine.migration;

import org.apache.ode.bpel.engine.BpelProcess;
import org.apache.ode.bpel.o.OPartnerLink;
import org.apache.ode.dao.bpel.BpelDAOConnection;
import org.apache.ode.dao.bpel.CorrelatorDAO;
import org.apache.ode.dao.bpel.ProcessDAO;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;

import javax.wsdl.Operation;
import java.util.Set;
import java.util.Iterator;

/**
 * Migrates correlators used for routing from a selection scheme that's based on
 * partnerLinkId+"."+operationName to partnerLinkName+"."+operationName
 */
public class CorrelatorsMigration implements Migration {
    private static final Log __log = LogFactory.getLog(CorrelatorsMigration.class);

    public boolean migrate(Set<BpelProcess> registeredProcesses, BpelDAOConnection connection) {
        for (BpelProcess process : registeredProcesses) {
            __log.debug("Migrating correlators for process " + process.getConf().getProcessId());
            ProcessDAO processDao = connection.getProcess(process.getConf().getProcessId());
            
            for (OPartnerLink plink : process.getOProcess().getAllPartnerLinks()) {
                if (plink.hasMyRole()) {
                    for (Iterator opI = plink.myRolePortType.getOperations().iterator(); opI.hasNext();) {
                        Operation op = (Operation)opI.next();
                        try {
                            CorrelatorDAO corr = processDao.getCorrelator(plink.getId() + "." + op.getName());
                            corr.setCorrelatorId(plink.getName() + "." + op.getName());
                            __log.debug("Migrated correlator " + plink.getName() + "." + op.getName());
                        } catch (IllegalArgumentException e) {
                            __log.debug("Correlator with id " + plink.getId() + "." +
                                    op.getName() + " couldn't be found, skipping.");
                        }
                    }
                }
            }
        }
        return true;
    }
}