| /* |
| * 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.axis2.transport.base.datagram; |
| |
| import java.io.IOException; |
| import java.net.SocketException; |
| |
| import org.apache.axis2.AxisFault; |
| import org.apache.axis2.transport.base.AbstractTransportListenerEx; |
| |
| public abstract class AbstractDatagramTransportListener<E extends DatagramEndpoint> |
| extends AbstractTransportListenerEx<E> { |
| |
| private DatagramDispatcher<E> dispatcher; |
| private String defaultIp; |
| |
| @Override |
| protected void doInit() throws AxisFault { |
| DatagramDispatcherCallback callback = new DatagramDispatcherCallback() { |
| |
| public void receive(DatagramEndpoint endpoint, |
| byte[] data, |
| int length, |
| DatagramOutTransportInfo outInfo) { |
| workerPool.execute(new ProcessPacketTask(endpoint, data, length, outInfo)); |
| } |
| }; |
| |
| try { |
| dispatcher = createDispatcher(callback); |
| } catch (IOException ex) { |
| throw new AxisFault("Unable to create selector", ex); |
| } |
| |
| try { |
| defaultIp = org.apache.axis2.util.Utils.getIpAddress(cfgCtx.getAxisConfiguration()); |
| } catch (SocketException ex) { |
| throw new AxisFault("Unable to determine the host's IP address", ex); |
| } |
| } |
| |
| @Override |
| protected final E createEndpoint() { |
| E endpoint = doCreateEndpoint(); |
| endpoint.setMetrics(metrics); |
| return endpoint; |
| } |
| |
| protected abstract E doCreateEndpoint(); |
| |
| @Override |
| protected void startEndpoint(E endpoint) throws AxisFault { |
| try { |
| dispatcher.addEndpoint(endpoint); |
| } catch (IOException ex) { |
| // TODO: passing endpoint.getService() is not correct because it may be null |
| throw new AxisFault("Unable to listen on endpoint " + endpoint.getDescription(), ex); |
| } |
| if (log.isDebugEnabled()) { |
| log.debug("Started listening on endpoint " + endpoint.getDescription() + |
| " [contentType=" + endpoint.getContentType() + |
| "; service=" + endpoint.getServiceName() + "]"); |
| } |
| } |
| |
| @Override |
| protected void stopEndpoint(E endpoint) { |
| try { |
| dispatcher.removeEndpoint(endpoint); |
| } catch (IOException ex) { |
| log.error("I/O exception while stopping listener for service " + |
| endpoint.getServiceName(), ex); |
| } |
| } |
| |
| @Override |
| public void destroy() { |
| super.destroy(); |
| try { |
| dispatcher.stop(); |
| } catch (IOException ex) { |
| log.error("Failed to stop dispatcher", ex); |
| } |
| } |
| |
| protected abstract DatagramDispatcher<E> createDispatcher(DatagramDispatcherCallback callback) |
| throws IOException; |
| } |