| /* |
| * |
| * 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.qpid.ra.inflow; |
| |
| import java.util.ArrayList; |
| import java.util.List; |
| |
| import javax.resource.ResourceException; |
| import javax.resource.spi.endpoint.MessageEndpointFactory; |
| import javax.resource.spi.work.Work; |
| |
| import org.apache.qpid.ra.QpidResourceAdapter; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| /** |
| * The activation. |
| * |
| */ |
| public class QpidActivation extends QpidExceptionHandler |
| { |
| private static final Logger _log = LoggerFactory.getLogger(QpidActivation.class); |
| |
| private final List<QpidMessageHandler> _handlers = new ArrayList<QpidMessageHandler>(); |
| |
| |
| /** |
| * Constructor |
| * |
| * @param ra The resource adapter |
| * @param endpointFactory The endpoint factory |
| * @param spec The activation spec |
| * @throws ResourceException Thrown if an error occurs |
| */ |
| public QpidActivation(final QpidResourceAdapter ra, |
| final MessageEndpointFactory endpointFactory, |
| final QpidActivationSpec spec) throws ResourceException |
| { |
| super(ra, spec, endpointFactory); |
| |
| } |
| |
| /** |
| * Start the activation |
| * |
| * @throws ResourceException Thrown if an error occurs |
| */ |
| public void start() throws ResourceException |
| { |
| if (_log.isTraceEnabled()) |
| { |
| _log.trace("start()"); |
| } |
| _deliveryActive.set(true); |
| new Thread(new SetupActivation()).start(); |
| } |
| |
| /** |
| * Stop the activation |
| */ |
| public void stop() |
| { |
| if (_log.isTraceEnabled()) |
| { |
| _log.trace("stop()"); |
| } |
| |
| _deliveryActive.set(false); |
| teardown(); |
| } |
| |
| /** |
| * Setup the activation |
| * |
| * @throws Exception Thrown if an error occurs |
| */ |
| public synchronized void setup() throws Exception |
| { |
| _log.debug("Setting up " + _spec); |
| setupCF(); |
| setupDestination(); |
| |
| if(!_spec.isUseConnectionPerHandler()) |
| { |
| setupConnection(); |
| _connection.setExceptionListener(this); |
| } |
| |
| for (int i = 0; i < _spec.getMaxSession(); i++) |
| { |
| try |
| { |
| QpidMessageHandler handler = null; |
| |
| if(_spec.isUseConnectionPerHandler()) |
| { |
| handler = new QpidMessageHandler(_ra, _spec, _endpointFactory, _ra.getTM()); |
| } |
| else |
| { |
| handler = new QpidMessageHandler(_ra, _spec, _endpointFactory, _ra.getTM(), _connection); |
| } |
| |
| handler.start(); |
| _handlers.add(handler); |
| } |
| catch(Exception e) |
| { |
| try |
| { |
| if(_connection != null) |
| { |
| this._connection.close(); |
| } |
| } |
| catch (Exception e2) |
| { |
| _log.trace("Ignored error closing connection", e2); |
| } |
| |
| throw e; |
| |
| } |
| |
| } |
| |
| if(!_spec.isUseConnectionPerHandler()) |
| { |
| this._connection.start(); |
| _activated.set(true); |
| } |
| |
| _log.debug("Setup complete " + this); |
| } |
| |
| /** |
| * Teardown the activation |
| */ |
| protected synchronized void teardown() |
| { |
| _log.debug("Tearing down " + _spec); |
| |
| super.teardown(); |
| |
| for (QpidMessageHandler handler : _handlers) |
| { |
| handler.stop(); |
| } |
| |
| _log.debug("Tearing down complete " + this); |
| } |
| |
| /** |
| * Get a string representation |
| * |
| * @return The value |
| */ |
| @Override |
| public String toString() |
| { |
| StringBuffer buffer = new StringBuffer(); |
| buffer.append(QpidActivation.class.getName()).append('('); |
| buffer.append("spec=").append(_spec.getClass().getName()); |
| buffer.append(" mepf=").append(_endpointFactory.getClass().getName()); |
| buffer.append(" active=").append(_deliveryActive.get()); |
| if (_spec.getDestination() != null) |
| { |
| buffer.append(" destination=").append(_spec.getDestination()); |
| } |
| buffer.append(" transacted=").append(_isDeliveryTransacted); |
| buffer.append(')'); |
| return buffer.toString(); |
| } |
| |
| |
| /** |
| * Handles the setup |
| */ |
| private class SetupActivation implements Work |
| { |
| public void run() |
| { |
| try |
| { |
| setup(); |
| } |
| catch (Throwable t) |
| { |
| handleFailure(t); |
| } |
| } |
| |
| public void release() |
| { |
| } |
| } |
| } |