| /* |
| * 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.runtime; |
| |
| import org.apache.ode.bpel.evt.CompensationHandlerRegistered; |
| import org.apache.ode.bpel.evt.ScopeEvent; |
| import org.apache.ode.bpel.o.OScope; |
| import org.apache.ode.bpel.runtime.channels.CompensationChannelListener; |
| import org.apache.ode.bpel.runtime.channels.FaultData; |
| import org.apache.ode.bpel.runtime.channels.ParentScopeChannel; |
| import org.apache.ode.bpel.runtime.channels.ParentScopeChannelListener; |
| import org.apache.ode.bpel.runtime.channels.TerminationChannel; |
| import org.apache.ode.jacob.SynchChannel; |
| |
| import java.util.Iterator; |
| import java.util.Set; |
| import org.w3c.dom.Element; |
| |
| /** |
| * A scope that has completed succesfully, and may possibly have a compensation handler. |
| */ |
| class COMPENSATIONHANDLER_ extends BpelJacobRunnable { |
| private static final long serialVersionUID = 1L; |
| private CompensationHandler _self; |
| private Set<CompensationHandler> _completedChildren; |
| |
| public COMPENSATIONHANDLER_(CompensationHandler self, Set<CompensationHandler> visibleCompensations) { |
| _self = self; |
| _completedChildren = visibleCompensations; |
| } |
| |
| public void run() { |
| sendEvent(new CompensationHandlerRegistered()); |
| object(new CompensationChannelListener(_self.compChannel) { |
| private static final long serialVersionUID = -477602498730810094L; |
| |
| public void forget() { |
| // Tell all our completed children to forget. |
| for (Iterator<CompensationHandler> i = _completedChildren.iterator(); i.hasNext(); ) |
| i.next().compChannel.forget(); |
| } |
| |
| public void compensate(final SynchChannel ret) { |
| // Only scopes with compensation handlers can be compensated. |
| assert _self.compensated.oscope.compensationHandler != null; |
| |
| ActivityInfo ai = new ActivityInfo(genMonotonic(), |
| _self.compensated.oscope.compensationHandler, |
| newChannel(TerminationChannel.class), newChannel(ParentScopeChannel.class)); |
| |
| |
| ScopeFrame compHandlerScopeFrame = new ScopeFrame( |
| _self.compensated.oscope.compensationHandler, |
| getBpelRuntimeContext().createScopeInstance(_self.compensated.scopeInstanceId, _self.compensated.oscope.compensationHandler), |
| _self.compensated, |
| _completedChildren); |
| |
| // Create the compensation handler scope. |
| instance(new SCOPE(ai,compHandlerScopeFrame, new LinkFrame(null))); |
| |
| object(new ParentScopeChannelListener(ai.parent) { |
| private static final long serialVersionUID = 8044120498580711546L; |
| |
| public void compensate(OScope scope, SynchChannel ret) { |
| throw new AssertionError("Unexpected."); |
| } |
| |
| public void completed(FaultData faultData, Set<CompensationHandler> compensations) { |
| // TODO: log faults. |
| |
| // Compensations registered in a compensation handler are unreachable. |
| for (Iterator<CompensationHandler> i = compensations.iterator();i.hasNext(); ) { |
| i.next().compChannel.forget(); |
| } |
| |
| // Notify synchronized waiter that we are done. |
| ret.ret(); |
| } |
| |
| public void cancelled() { completed(null, CompensationHandler.emptySet()); } |
| public void failure(String reason, Element data) { completed(null, CompensationHandler.emptySet()); } |
| }); |
| } |
| }); |
| } |
| |
| private void sendEvent(ScopeEvent event) { |
| _self.compensated.fillEventInfo(event); |
| getBpelRuntimeContext().sendEvent(event); |
| } |
| |
| public String toString() { |
| return new StringBuffer(getClassName()) |
| .append(":") |
| .append(_self.compensated) |
| .append("(...)") |
| .toString(); |
| } |
| } |