/*
* 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.daohib.bpel;
import org.apache.ode.bpel.common.ProcessState;
import org.apache.ode.bpel.dao.*;
import org.apache.ode.bpel.evt.ProcessInstanceEvent;
import org.apache.ode.daohib.SessionManager;
import org.apache.ode.daohib.bpel.hobj.*;
import org.apache.ode.utils.DOMUtils;
import org.apache.ode.utils.QNameUtils;
import org.apache.ode.utils.stl.CollectionsX;
import org.apache.ode.utils.stl.UnaryFunction;
import org.hibernate.Criteria;
import org.hibernate.Hibernate;
import org.hibernate.Query;
import org.hibernate.criterion.Projections;
import org.hibernate.criterion.Restrictions;
import org.w3c.dom.Element;
import javax.xml.namespace.QName;
import java.util.*;
/**
* Hibernate-based {@link ProcessInstanceDAO} implementation.
*/
class ProcessInstanceDaoImpl extends HibernateDao implements ProcessInstanceDAO {
/** Query for removing selectors. */
private static final String QRY_DELSELECTORS = "delete from " +
HCorrelatorSelector.class.getName() + " where instance = ?";
private static final String QRY_VARIABLES = "from " + HXmlData.class.getName()
+ " as x where x.name = ? and x.scope.scopeModelId = ? and x.scope.instance.id = ?";
private static final String QRY_RECOVERIES = "from " + HActivityRecovery.class.getName() +
" AS x WHERE x.instance.id = ?";
private HProcessInstance _instance;
private ScopeDAO _root;
public ProcessInstanceDaoImpl(SessionManager sm, HProcessInstance instance) {
super(sm, instance);
_instance = instance;
}
/**
* @see org.apache.ode.bpel.dao.ProcessInstanceDAO#getCreateTime()
*/
public Date getCreateTime() {
return _instance.getCreated();
}
public void setFault(FaultDAO fault) {
_instance.setFault(((FaultDAOImpl)fault)._self);
getSession().update(_instance);
}
/**
* @see org.apache.ode.bpel.dao.ProcessInstanceDAO#setFault(javax.xml.namespace.QName, String, int, int, org.w3c.dom.Element)
*/
public void setFault(QName name, String explanation, int lineNo, int activityId, Element faultData) {
if (_instance.getFault() != null)
getSession().delete(_instance.getFault());
HFaultData fault = new HFaultData();
fault.setName(QNameUtils.fromQName(name));
fault.setExplanation(explanation);
fault.setLineNo(lineNo);
fault.setActivityId(activityId);
if (faultData != null) {
HLargeData ld = new HLargeData(DOMUtils.domToString(faultData));
fault.setData(ld);
getSession().save(ld);
}
_instance.setFault(fault);
getSession().save(fault);
getSession().update(_instance);
}
/**
* @see org.apache.ode.bpel.dao.ProcessInstanceDAO#getFault()
*/
public FaultDAO getFault() {
if (_instance.getFault() == null) return null;
else return new FaultDAOImpl(_sm, _instance.getFault());
}
/**
* @see org.apache.ode.bpel.dao.ProcessInstanceDAO#getExecutionState()
*/
public byte[] getExecutionState() {
if (_instance.getJacobState() == null) return null;
return _instance.getJacobState().getBinary();
}
/**
* @see org.apache.ode.bpel.dao.ProcessInstanceDAO#setExecutionState(byte[])
*/
public void setExecutionState(byte[] bytes) {
if (_instance.getJacobState() != null)
getSession().delete(_instance.getJacobState());
if (bytes.length > 0) {
HLargeData ld = new HLargeData(bytes);
_instance.setJacobState(ld);
getSession().save(ld);
}
getSession().update(_instance);
}
/**
* @see org.apache.ode.bpel.dao.ProcessInstanceDAO#getProcess()
*/
public ProcessDAO getProcess() {
return new ProcessDaoImpl(_sm, _instance.getProcess());
}
/**
* @see org.apache.ode.bpel.dao.ProcessInstanceDAO#getRootScope()
*/
public ScopeDAO getRootScope() {
if (_root != null)
return _root;
Query rootQry = getSession().createFilter(_instance.getScopes(),
"where this.parentScope is null");
HScope hroot = (HScope)rootQry.uniqueResult();
if (hroot == null)
return null;
return _root = new ScopeDaoImpl(_sm, hroot);
}
/**
* @see org.apache.ode.bpel.dao.ProcessInstanceDAO#setState(short)
*/
public void setState(short state) {
_instance.setPreviousState(_instance.getState());
_instance.setState(state);
if(state==ProcessState.STATE_TERMINATED) {
clearSelectors();
}
getSession().update(_instance);
}
/**
* @see org.apache.ode.bpel.dao.ProcessInstanceDAO#getState()
*/
public short getState() {
return _instance.getState();
}
/**
* @see org.apache.ode.bpel.dao.ProcessInstanceDAO#getPreviousState()
*/
public short getPreviousState() {
return _instance.getPreviousState();
}
public ScopeDAO createScope(ScopeDAO parentScope, String name, int scopeModelId) {
HScope scope = new HScope();
scope.setParentScope(parentScope != null
? (HScope)((ScopeDaoImpl)parentScope).getHibernateObj()
: null);
scope.setName(name);
scope.setScopeModelId(scopeModelId);
scope.setState(ScopeStateEnum.ACTIVE.toString());
scope.setInstance(_instance);
scope.setCreated(new Date());
_instance.getScopes().add(scope);
getSession().save(scope);
return new ScopeDaoImpl(_sm, scope);
}
/**
* @see org.apache.ode.bpel.dao.ProcessInstanceDAO#getInstanceId()
*/
public Long getInstanceId() {
return _instance.getId();
}
public ScopeDAO getScope(Long scopeInstanceId) {
Long id = Long.valueOf(scopeInstanceId);
HScope scope = (HScope)getSession().get(HScope.class, id);
return scope != null
? new ScopeDaoImpl(_sm, scope)
: null;
}
/**
* @see org.apache.ode.bpel.dao.ProcessInstanceDAO#getScopes(java.lang.String)
*/
@SuppressWarnings("unchecked")
public Collection<ScopeDAO> getScopes(String scopeName) {
Collection<HScope> hscopes;
if (scopeName != null) {
Query filter = _sm.getSession().createFilter(_instance.getScopes(),
"where this.name=?");
filter.setString(0,scopeName);
hscopes = filter.list();
} else
hscopes = _instance.getScopes();
ArrayList<ScopeDAO> ret = new ArrayList<ScopeDAO>();
CollectionsX.transform(ret, hscopes, new UnaryFunction<HScope,ScopeDAO> () {
public ScopeDAO apply(HScope x) {
return new ScopeDaoImpl(_sm, x);
}
});
return ret;
}
public Collection<ScopeDAO> getScopes() {
return getScopes(null);
}
/**
* @see org.apache.ode.bpel.dao.ProcessInstanceDAO#getInstantiatingCorrelator()
*/
public CorrelatorDAO getInstantiatingCorrelator() {
return new CorrelatorDaoImpl(_sm, _instance.getInstantiatingCorrelator());
}
/**
* @see org.apache.ode.bpel.dao.ProcessInstanceDAO#getLastActiveTime()
*/
public Date getLastActiveTime() {
return _instance.getLastActiveTime();
}
/**
* @see org.apache.ode.bpel.dao.ProcessInstanceDAO#setLastActiveTime(java.util.Date)
*/
public void setLastActiveTime(Date dt) {
_instance.setLastActiveTime(dt);
}
public Set<CorrelationSetDAO> getCorrelationSets() {
Set<CorrelationSetDAO> results = new HashSet<CorrelationSetDAO>();
for (HCorrelationSet hCorrelationSet : _instance.getCorrelationSets()) {
results.add(new CorrelationSetDaoImpl(_sm, hCorrelationSet));
}
return results;
}
public CorrelationSetDAO getCorrelationSet(String name) {
for (HCorrelationSet hCorrelationSet : _instance.getCorrelationSets()) {
if (hCorrelationSet.getName().equals(name))
return new CorrelationSetDaoImpl(_sm, hCorrelationSet);
}
return null;
}
/**
* @see org.apache.ode.bpel.dao.ProcessInstanceDAO#getVariables(java.lang.String, int)
*/
public XmlDataDAO[] getVariables(String variableName, int scopeModelId) {
List<XmlDataDAO> results = new ArrayList<XmlDataDAO>();
Iterator iter;
Query qry = getSession().createQuery(QRY_VARIABLES);
qry.setString(0, variableName);
qry.setInteger(1, scopeModelId);
qry.setLong(2, _instance.getId());
iter = qry.iterate();
while(iter.hasNext()) {
results.add(new XmlDataDaoImpl(_sm, (HXmlData)iter.next()));
}
Hibernate.close(iter);
return results.toArray(new XmlDataDAO[results.size()]);
}
/**
* @see org.apache.ode.bpel.dao.ProcessInstanceDAO#finishCompletion()
*/
public void finishCompletion() {
// make sure we have completed.
assert (ProcessState.isFinished(this.getState()));
// let our process know that we've done our work.
this.getProcess().instanceCompleted(this);
}
public void delete() {
_sm.getSession().delete(_instance);
}
public void insertBpelEvent(ProcessInstanceEvent event) {
// Defer to the BpelDAOConnectionImpl
BpelDAOConnectionImpl._insertBpelEvent(_sm.getSession(),event, this.getProcess(), this);
}
public EventsFirstLastCountTuple getEventsFirstLastCount() {
// Using a criteria, find the min,max, and count of event tstamps.
Criteria c = _sm.getSession().createCriteria(HBpelEvent.class);
c.add(Restrictions.eq("instance",_instance));
c.setProjection(Projections.projectionList().add(Projections.min("tstamp"))
.add(Projections.max("tstamp"))
.add(Projections.count("tstamp")));
Object[] ret = (Object[]) c.uniqueResult();
EventsFirstLastCountTuple flc = new EventsFirstLastCountTuple();
flc.first = (Date) ret[0];
flc.last = (Date) ret[1];
flc.count = (Integer)ret[2];
return flc;
}
public long genMonotonic() {
long seq = _instance.getSequence()+1;
_instance.setSequence(seq);
return seq;
}
protected void clearSelectors() {
Query q = getSession().createQuery(QRY_DELSELECTORS);
q.setEntity(0, _instance);
q.executeUpdate();
}
public int getActivityFailureCount() {
return _instance.getActivityFailureCount();
}
public Date getActivityFailureDateTime() {
return _instance.getActivityFailureDateTime();
}
public Collection<ActivityRecoveryDAO> getActivityRecoveries() {
List<ActivityRecoveryDAO> results = new ArrayList<ActivityRecoveryDAO>();
Query qry = getSession().createQuery(QRY_RECOVERIES);
qry.setLong(0, _instance.getId());
Iterator iter = qry.iterate();
while (iter.hasNext())
results.add(new ActivityRecoveryDaoImpl(_sm, (HActivityRecovery) iter.next()));
Hibernate.close(iter);
return results;
}
public void createActivityRecovery(String channel, long activityId, String reason,
Date dateTime, Element data, String[] actions, int retries) {
HActivityRecovery recovery = new HActivityRecovery();
recovery.setInstance(_instance);
recovery.setChannel(channel);
recovery.setActivityId(activityId);
recovery.setReason(reason);
recovery.setDateTime(dateTime);
recovery.setRetries(retries);
if (data != null) {
HLargeData ld = new HLargeData(DOMUtils.domToString(data));
recovery.setDetails(ld);
getSession().save(ld);
}
String list = actions[0];
for (int i = 1; i < actions.length; ++i)
list += " " + actions[i];
recovery.setActions(list);
_instance.getActivityRecoveries().add(recovery);
getSession().save(recovery);
_instance.setActivityFailureDateTime(dateTime);
_instance.setActivityFailureCount(_instance.getActivityFailureCount() + 1);
getSession().update(_instance);
}
/**
* Delete previously registered activity recovery.
*/
public void deleteActivityRecovery(String channel) {
for (HActivityRecovery recovery : _instance.getActivityRecoveries()) {
if (recovery.getChannel().equals(channel)) {
getSession().delete(recovery);
_instance.setActivityFailureCount(_instance.getActivityFailureCount() - 1);
getSession().update(_instance);
return;
}
}
}
public BpelDAOConnection getConnection() {
return new BpelDAOConnectionImpl(_sm);
}
}