| /* |
| * Copyright 2004 The Apache Software Foundation. |
| * |
| * Licensed 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.kandula.participant; |
| |
| import org.apache.kandula.Status; |
| import org.apache.kandula.context.AbstractContext; |
| import org.apache.kandula.context.impl.ATParticipantContext; |
| import org.apache.kandula.faults.AbstractKandulaException; |
| import org.apache.kandula.faults.InvalidStateException; |
| import org.apache.kandula.wsat.twopc.CoordinatorPortTypeRawXMLStub; |
| |
| /** |
| * @author <a href="mailto:thilina@opensource.lk"> Thilina Gunarathne </a> |
| */ |
| public class ParticipantTransactionCoordinator { |
| |
| public void prepare(AbstractContext context) |
| throws AbstractKandulaException { |
| CoordinatorPortTypeRawXMLStub stub; |
| ATParticipantContext atContext = (ATParticipantContext) context; |
| atContext.lock(); |
| switch (context.getStatus()) { |
| case (Status.CoordinatorStatus.STATUS_NONE): |
| atContext.unlock(); |
| stub = new CoordinatorPortTypeRawXMLStub(atContext |
| .getCoordinationEPR()); |
| stub.abortedOperation(); |
| break; |
| case (Status.CoordinatorStatus.STATUS_PREPARING): |
| case (Status.CoordinatorStatus.STATUS_PREPARED): |
| case (Status.CoordinatorStatus.STATUS_COMMITTING): |
| // Ignore the message |
| atContext.unlock(); |
| break; |
| case (Status.CoordinatorStatus.STATUS_PREPARED_SUCCESS): |
| atContext.unlock(); |
| stub = new CoordinatorPortTypeRawXMLStub(atContext |
| .getCoordinationEPR()); |
| stub.preparedOperation(); |
| break; |
| case (Status.CoordinatorStatus.STATUS_ACTIVE): |
| atContext.setStatus(Status.CoordinatorStatus.STATUS_PREPARING); |
| atContext.unlock(); |
| KandulaResource resource = atContext.getResource(); |
| Vote vote = resource.prepare(); |
| stub = new CoordinatorPortTypeRawXMLStub(atContext |
| .getCoordinationEPR()); |
| if (vote == Vote.ABORT) { |
| stub.abortedOperation(); |
| } else if (vote == Vote.PREPARED) { |
| stub.preparedOperation(); |
| } else if (vote == Vote.READ_ONLY) { |
| stub.readOnlyOperation(); |
| } |
| break; |
| default: |
| context.unlock(); |
| throw new InvalidStateException(); |
| } |
| } |
| |
| public void commit(AbstractContext context) throws AbstractKandulaException { |
| ATParticipantContext atContext = (ATParticipantContext) context; |
| boolean outcome = atContext.getResource().commit(); |
| CoordinatorPortTypeRawXMLStub stub = new CoordinatorPortTypeRawXMLStub( |
| atContext.getCoordinationEPR()); |
| if (outcome) { |
| stub.committedOperation(); |
| } else { |
| stub.abortedOperation(); |
| } |
| // ATParticipantContext atContext = (ATParticipantContext) context; |
| // atContext.lock(); |
| // switch (context.getStatus()) { |
| // case (Status.CoordinatorStatus.STATUS_NONE): |
| // //TODO send aborted |
| // atContext.unlock(); |
| // return Vote.ABORT; |
| // case (Status.CoordinatorStatus.STATUS_PREPARING): |
| // case (Status.CoordinatorStatus.STATUS_PREPARED): |
| // case (Status.CoordinatorStatus.STATUS_COMMITTING): |
| // //Ignore the message |
| // atContext.unlock(); |
| // return Vote.NONE; |
| // case (Status.CoordinatorStatus.STATUS_PREPARED_SUCCESS): |
| // atContext.unlock(); |
| // return Vote.PREPARED; |
| // case (Status.CoordinatorStatus.STATUS_ACTIVE): |
| // atContext.setStatus(Status.CoordinatorStatus.STATUS_PREPARING); |
| // KandulaResource resource = atContext.getResource(); |
| // return resource.prepare(); |
| // default: |
| // context.unlock(); |
| // throw new InvalidStateException(); |
| // } |
| } |
| |
| public void rollback(AbstractContext context) throws AbstractKandulaException { |
| ATParticipantContext atContext = (ATParticipantContext) context; |
| atContext.getResource().rollback(); |
| CoordinatorPortTypeRawXMLStub stub = new CoordinatorPortTypeRawXMLStub( |
| atContext.getCoordinationEPR()); |
| stub.abortedOperation(); |
| } |
| |
| } |