Java tutorial
/* * 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.nifi.amqp.processors; import java.io.IOException; import java.net.InetAddress; import java.util.List; import java.util.Map; import com.rabbitmq.client.BlockedListener; import com.rabbitmq.client.Channel; import com.rabbitmq.client.Connection; import com.rabbitmq.client.ExceptionHandler; import com.rabbitmq.client.ShutdownListener; import com.rabbitmq.client.ShutdownSignalException; /** * Implementation of {@link Connection} to be used for testing. Will return the * same instance of {@link Channel} when {@link #createChannel()} is called. * * This class essentially emulates AMQP system and attempts to ensure the same * behavior on publish/subscribe and other core operations used by the NIFI AMQP * component. * * NOTE: Only methods that are used by the framework are implemented. More * could/should be added later */ class TestConnection implements Connection { private final TestChannel channel; private boolean open; public TestConnection(Map<String, String> exchangeToRoutingKeyMappings, Map<String, List<String>> routingKeyToQueueMappings) { this.channel = new TestChannel(exchangeToRoutingKeyMappings, routingKeyToQueueMappings); this.channel.setConnection(this); this.open = true; } @Override public void addShutdownListener(ShutdownListener listener) { throw new UnsupportedOperationException( "This method is not currently supported as it is not used by current API in testing"); } @Override public void removeShutdownListener(ShutdownListener listener) { throw new UnsupportedOperationException( "This method is not currently supported as it is not used by current API in testing"); } @Override public ShutdownSignalException getCloseReason() { throw new UnsupportedOperationException( "This method is not currently supported as it is not used by current API in testing"); } @Override public void notifyListeners() { throw new UnsupportedOperationException( "This method is not currently supported as it is not used by current API in testing"); } @Override public boolean isOpen() { return this.open; } @Override public InetAddress getAddress() { try { return InetAddress.getByName("localhost"); } catch (Exception e) { throw new IllegalStateException(e); } } @Override public int getPort() { throw new UnsupportedOperationException( "This method is not currently supported as it is not used by current API in testing"); } @Override public int getChannelMax() { throw new UnsupportedOperationException( "This method is not currently supported as it is not used by current API in testing"); } @Override public int getFrameMax() { throw new UnsupportedOperationException( "This method is not currently supported as it is not used by current API in testing"); } @Override public int getHeartbeat() { throw new UnsupportedOperationException( "This method is not currently supported as it is not used by current API in testing"); } @Override public Map<String, Object> getClientProperties() { throw new UnsupportedOperationException( "This method is not currently supported as it is not used by current API in testing"); } @Override public Map<String, Object> getServerProperties() { throw new UnsupportedOperationException( "This method is not currently supported as it is not used by current API in testing"); } @Override public Channel createChannel() throws IOException { return this.channel; } @Override public Channel createChannel(int channelNumber) throws IOException { throw new UnsupportedOperationException( "This method is not currently supported as it is not used by current API in testing"); } @Override public void close() throws IOException { this.open = false; try { this.channel.close(); } catch (Exception e) { e.printStackTrace(); } } @Override public void close(int closeCode, String closeMessage) throws IOException { throw new UnsupportedOperationException( "This method is not currently supported as it is not used by current API in testing"); } @Override public void close(int timeout) throws IOException { throw new UnsupportedOperationException( "This method is not currently supported as it is not used by current API in testing"); } @Override public void close(int closeCode, String closeMessage, int timeout) throws IOException { throw new UnsupportedOperationException( "This method is not currently supported as it is not used by current API in testing"); } @Override public void abort() { throw new UnsupportedOperationException( "This method is not currently supported as it is not used by current API in testing"); } @Override public void abort(int closeCode, String closeMessage) { throw new UnsupportedOperationException( "This method is not currently supported as it is not used by current API in testing"); } @Override public void abort(int timeout) { throw new UnsupportedOperationException( "This method is not currently supported as it is not used by current API in testing"); } @Override public void abort(int closeCode, String closeMessage, int timeout) { throw new UnsupportedOperationException( "This method is not currently supported as it is not used by current API in testing"); } @Override public void addBlockedListener(BlockedListener listener) { throw new UnsupportedOperationException( "This method is not currently supported as it is not used by current API in testing"); } @Override public boolean removeBlockedListener(BlockedListener listener) { throw new UnsupportedOperationException( "This method is not currently supported as it is not used by current API in testing"); } @Override public void clearBlockedListeners() { throw new UnsupportedOperationException( "This method is not currently supported as it is not used by current API in testing"); } @Override public ExceptionHandler getExceptionHandler() { throw new UnsupportedOperationException( "This method is not currently supported as it is not used by current API in testing"); } }