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Diffstat (limited to '')
-rw-r--r-- | sca-java-2.x/branches/2.0-Beta1/modules/policy-transaction-runtime/src/main/java/org/apache/tuscany/sca/policy/transaction/runtime/TransactionInterceptor.java | 151 |
1 files changed, 151 insertions, 0 deletions
diff --git a/sca-java-2.x/branches/2.0-Beta1/modules/policy-transaction-runtime/src/main/java/org/apache/tuscany/sca/policy/transaction/runtime/TransactionInterceptor.java b/sca-java-2.x/branches/2.0-Beta1/modules/policy-transaction-runtime/src/main/java/org/apache/tuscany/sca/policy/transaction/runtime/TransactionInterceptor.java new file mode 100644 index 0000000000..f6e0e87ece --- /dev/null +++ b/sca-java-2.x/branches/2.0-Beta1/modules/policy-transaction-runtime/src/main/java/org/apache/tuscany/sca/policy/transaction/runtime/TransactionInterceptor.java @@ -0,0 +1,151 @@ +/* + * 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.tuscany.sca.policy.transaction.runtime; + +import java.util.logging.Logger; + +import org.apache.tuscany.sca.invocation.Invoker; +import org.apache.tuscany.sca.invocation.Message; +import org.apache.tuscany.sca.invocation.PhasedInterceptor; +import org.apache.tuscany.sca.policy.transaction.TransactionPolicy; + +/** + * @version $Rev$ $Date$ + */ +public class TransactionInterceptor implements PhasedInterceptor { + private static final Logger logger = Logger.getLogger(TransactionInterceptor.class.getName()); + + private Invoker next; + private TransactionManagerHelper helper; + private boolean outbound; + private TransactionPolicy interactionPolicy; + private TransactionPolicy implementationPolicy; + private String phase; + + public TransactionInterceptor(TransactionManagerHelper helper, + boolean outbound, + TransactionPolicy interactionPolicy, + TransactionPolicy implementationPolicy, + String phase) { + super(); + this.helper = helper; + this.outbound = outbound; + this.interactionPolicy = interactionPolicy; + this.implementationPolicy = implementationPolicy; + } + + /** + * @see org.apache.tuscany.sca.invocation.Interceptor#getNext() + */ + public Invoker getNext() { + return next; + } + + /** + * @see org.apache.tuscany.sca.invocation.Interceptor#setNext(org.apache.tuscany.sca.invocation.Invoker) + */ + public void setNext(Invoker next) { + this.next = next; + } + + /** + * @see org.apache.tuscany.sca.invocation.Invoker#invoke(org.apache.tuscany.sca.invocation.Message) + */ + public Message invoke(Message msg) { + //logger.info("Executing TransactionInterceptor.invoke"); + TransactionalInvocation invocation = new TransactionalInvocation(next, msg); + + Message result = null; + if (msg.getOperation().isNonBlocking()) { + + } + + // initialize default values + TransactionIntent interactionIntent = null; //TransactionIntent.propagatesTransacton; + TransactionIntent implementationIntent = TransactionIntent.managedTransactionGlobal; + + if (interactionPolicy != null) { + if (interactionPolicy.getAction() == TransactionPolicy.Action.PROPAGATE) { + interactionIntent = TransactionIntent.propagatesTransacton; + } else if (interactionPolicy.getAction() == TransactionPolicy.Action.REQUIRE_NONE) { + interactionIntent = TransactionIntent.suspendsTransaction; + if(implementationPolicy == null) { + implementationIntent = TransactionIntent.noManagedTransaction; + } + } else { + interactionIntent = TransactionIntent.suspendsTransaction; + } + } + + if (implementationPolicy != null) { + switch (implementationPolicy.getAction()) { + case REQUIRE_GLOBAL: + implementationIntent = TransactionIntent.managedTransactionGlobal; + break; + case REQUIRE_LOCAL: + implementationIntent = TransactionIntent.managedTransactionLocal; + break; + default: + implementationIntent = TransactionIntent.noManagedTransaction; + break; + } + } + try { + if (outbound) { + result = helper.handlesOutbound(interactionIntent, implementationIntent, invocation); + } else { + result = helper.handlesInbound(interactionIntent, implementationIntent, invocation); + } + + } catch (Throwable e) { + if (e instanceof Error) { + throw (Error)e; + } else if (e instanceof RuntimeException) { + throw (RuntimeException)e; + } else { + result = msg; + msg.setFaultBody(e); + } + + } + return result; + } + + private static class TransactionalInvocation implements TransactionalAction<Message> { + private final Invoker invoker; + private final Message message; + + public TransactionalInvocation(Invoker invoker, Message message) { + super(); + this.invoker = invoker; + this.message = message; + } + + public Message run() throws Exception { + return invoker.invoke(message); + } + + } + + public String getPhase() { + return phase; + } + +} |