| /* |
| * 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.protonj2.client.impl; |
| |
| import org.apache.qpid.protonj2.buffer.ProtonBuffer; |
| import org.apache.qpid.protonj2.client.transport.Transport; |
| import org.apache.qpid.protonj2.client.transport.TransportListener; |
| import org.apache.qpid.protonj2.engine.Engine; |
| import org.apache.qpid.protonj2.engine.exceptions.EngineStateException; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| /** |
| * Transport events listener that is bound to a single proton {@link Engine} instance |
| * for its lifetime which prevent duplication of error or connection closed events from |
| * influencing a {@link ClientConnection} that will attempt reconnection. |
| */ |
| final class ClientTransportListener implements TransportListener { |
| |
| private static final Logger LOG = LoggerFactory.getLogger(ClientTransportListener.class); |
| |
| private final Engine engine; |
| private final ClientConnection connection; |
| |
| ClientTransportListener(ClientConnection connection, Engine engine) { |
| this.engine = engine; |
| this.connection = connection; |
| } |
| |
| @Override |
| public void transportInitialized(Transport transport) { |
| engine.configuration().setBufferAllocator(transport.getBufferAllocator()); |
| } |
| |
| @Override |
| public void transportConnected(Transport transport) { |
| engine.start().open(); |
| } |
| |
| @Override |
| public void transportRead(ProtonBuffer incoming) { |
| try { |
| connection.autoFlushOff(); |
| do { |
| engine.ingest(incoming); |
| } while (incoming.isReadable() && engine.isWritable()); |
| // TODO - How do we handle case of not all data read ? |
| } catch (EngineStateException e) { |
| LOG.warn("Caught problem during incoming data processing: {}", e.getMessage(), e); |
| engine.engineFailed(ClientExceptionSupport.createOrPassthroughFatal(e)); |
| } finally { |
| connection.autoFlushOn(); |
| } |
| } |
| |
| @Override |
| public void transportError(Throwable error) { |
| if (!engine.isShutdown()) { |
| LOG.debug("Transport failed: {}", error.getMessage()); |
| engine.engineFailed(ClientExceptionSupport.convertToConnectionClosedException(error)); |
| } |
| } |
| } |