/*
* 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.engine.ReplacementMapImpl;
import org.apache.ode.bpel.engine.OutstandingRequestManager;
import org.apache.ode.bpel.dao.*;
import org.apache.ode.bpel.common.CorrelationKey;
import org.apache.ode.bpel.o.*;
import org.apache.ode.bpel.runtime.Selector;
import org.apache.ode.jacob.vpu.ExecutionQueueImpl;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import javax.xml.namespace.QName;
import javax.wsdl.Operation;
import java.util.*;
import java.io.ObjectStreamClass;
import java.io.FileInputStream;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
/**
* Migrates the correlation key values to a scheme containing the OModel correlation
* set id to one using its name. So something like 1~abc~de will become foo~abc~de.
*/
public class CorrelationKeyMigration implements Migration {
private static final Log __log = LogFactory.getLog(CorrelationKeyMigration.class);
public boolean migrate(Set<BpelProcess> registeredProcesses, BpelDAOConnection connection) {
// Map only used to avoid duplicates, set would force to re-implement equals
HashMap<Long,ProcessInstanceDAO> instances = new HashMap<Long,ProcessInstanceDAO>();
// Migrate correlation set values
Collection<CorrelationSetDAO> csets = connection.getActiveCorrelationSets();
for (CorrelationSetDAO cset : csets) {
CorrelationKey ckey = cset.getValue();
instances.put(cset.getInstance().getInstanceId(), cset.getInstance());
if (ckey != null) {
__log.debug("Correlation set id " + cset.getCorrelationSetId() + " key " + ckey);
Integer ckeyInt = asInt(ckey.getCorrelationSetName());
if (ckeyInt != null) {
OScope.CorrelationSet ocset = findCorrelationById(ckeyInt, registeredProcesses, cset.getProcess().getProcessId());
if (ocset == null) __log.debug("Correlation set not found, couldn't upgrade set " + ckey.toCanonicalString());
else {
cset.setValue(null, new CorrelationKey(ocset.name, ckey.getValues()));
}
}
}
}
// Migrate routes and message queue for each correlator
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.getName() + "." + op.getName());
// Changing all routes
if (corr != null) {
for (MessageRouteDAO routeDAO : corr.getAllRoutes()) {
CorrelationKey oldKey = routeDAO.getCorrelationKey();
if (oldKey != null) {
Integer ckeyInt = asInt(oldKey.getCorrelationSetName());
if (ckeyInt != null) {
OScope.CorrelationSet ocset = findCorrelationById(ckeyInt, registeredProcesses, process.getConf().getProcessId());
if (ocset == null) __log.debug("Correlation set not found, couldn't upgrade route " + oldKey.toCanonicalString());
else {
routeDAO.setCorrelationKey(new CorrelationKey(ocset.name, oldKey.getValues()));
}
}
}
}
// Changing all queued messages
for (CorrelatorMessageDAO corrMsgDAO : corr.getAllMessages()) {
CorrelationKey oldKey = corrMsgDAO.getCorrelationKey();
if (oldKey != null) {
Integer ckeyInt = asInt(oldKey.getCorrelationSetName());
if (ckeyInt != null) {
OScope.CorrelationSet ocset = findCorrelationById(ckeyInt, registeredProcesses, process.getConf().getProcessId());
if (ocset == null) __log.debug("Correlation set not found, couldn't upgrade route " + oldKey.toCanonicalString());
else {
corrMsgDAO.setCorrelationKey(new CorrelationKey(ocset.name, oldKey.getValues()));
}
}
}
}
__log.debug("Migrated routes and message queue for correlator " + plink.getName() + "." + op.getName());
}
} catch (IllegalArgumentException e) {
__log.debug("Correlator with id " + plink.getId() + "." +
op.getName() + " couldn't be found, skipping.");
}
}
}
}
}
return true;
}
private Integer asInt(String s) {
try {
return Integer.parseInt(s);
} catch (NumberFormatException e) {
return null;
}
}
private OScope.CorrelationSet findCorrelationById(int ckeyInt, Set<BpelProcess> processes, QName processId) {
for (BpelProcess process : processes) {
if (process.getConf().getProcessId().equals(processId)) {
OBase ocset = process.getOProcess().getChild(ckeyInt);
if (ocset instanceof OScope.CorrelationSet) return (OScope.CorrelationSet)ocset;
}
}
return null;
}
}