| /* |
| * |
| * 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.server.exchange; |
| |
| import org.apache.log4j.Logger; |
| |
| import org.apache.qpid.AMQException; |
| import org.apache.qpid.AMQSecurityException; |
| import org.apache.qpid.AMQUnknownExchangeType; |
| import org.apache.qpid.exchange.ExchangeDefaults; |
| import org.apache.qpid.framing.AMQShortString; |
| import org.apache.qpid.server.model.UUIDGenerator; |
| import org.apache.qpid.server.plugin.ExchangeType; |
| import org.apache.qpid.server.plugin.QpidServiceLoader; |
| import org.apache.qpid.server.virtualhost.VirtualHost; |
| |
| import java.util.ArrayList; |
| import java.util.Collection; |
| import java.util.HashMap; |
| import java.util.Map; |
| import java.util.UUID; |
| |
| public class DefaultExchangeFactory implements ExchangeFactory |
| { |
| public static final String DEFAULT_DLE_NAME_SUFFIX = "_DLE"; |
| |
| private static final Logger LOGGER = Logger.getLogger(DefaultExchangeFactory.class); |
| |
| private static final AMQShortString[] BASE_EXCHANGE_TYPES = |
| new AMQShortString[]{ExchangeDefaults.DIRECT_EXCHANGE_CLASS, |
| ExchangeDefaults.FANOUT_EXCHANGE_CLASS, |
| ExchangeDefaults.HEADERS_EXCHANGE_CLASS, |
| ExchangeDefaults.TOPIC_EXCHANGE_CLASS}; |
| |
| private final VirtualHost _host; |
| private Map<AMQShortString, ExchangeType<? extends Exchange>> _exchangeClassMap = new HashMap<AMQShortString, ExchangeType<? extends Exchange>>(); |
| |
| public DefaultExchangeFactory(VirtualHost host) |
| { |
| _host = host; |
| |
| @SuppressWarnings("rawtypes") |
| Iterable<ExchangeType> exchangeTypes = loadExchangeTypes(); |
| for (ExchangeType<?> exchangeType : exchangeTypes) |
| { |
| AMQShortString typeName = exchangeType.getName(); |
| |
| if(LOGGER.isDebugEnabled()) |
| { |
| LOGGER.debug("Registering exchange type '" + typeName + "' using class '" + exchangeType.getClass().getName() + "'"); |
| } |
| |
| if(_exchangeClassMap.containsKey(typeName)) |
| { |
| ExchangeType<?> existingType = _exchangeClassMap.get(typeName); |
| |
| throw new IllegalStateException("ExchangeType with type name '" + typeName + "' is already registered using class '" |
| + existingType.getClass().getName() + "', can not register class '" |
| + exchangeType.getClass().getName() + "'"); |
| } |
| |
| _exchangeClassMap.put(typeName, exchangeType); |
| } |
| |
| for(AMQShortString type : BASE_EXCHANGE_TYPES) |
| { |
| if(!_exchangeClassMap.containsKey(type)) |
| { |
| throw new IllegalStateException("Did not find expected exchange type: " + type.asString()); |
| } |
| } |
| } |
| |
| @SuppressWarnings("rawtypes") |
| protected Iterable<ExchangeType> loadExchangeTypes() |
| { |
| return new QpidServiceLoader<ExchangeType>().atLeastOneInstanceOf(ExchangeType.class); |
| } |
| |
| public Collection<ExchangeType<? extends Exchange>> getRegisteredTypes() |
| { |
| return _exchangeClassMap.values(); |
| } |
| |
| public Collection<ExchangeType<? extends Exchange>> getPublicCreatableTypes() |
| { |
| Collection<ExchangeType<? extends Exchange>> publicTypes = |
| new ArrayList<ExchangeType<? extends Exchange>>(); |
| publicTypes.addAll(_exchangeClassMap.values()); |
| |
| return publicTypes; |
| } |
| |
| public Exchange createExchange(String exchange, String type, boolean durable, boolean autoDelete) |
| throws AMQException |
| { |
| return createExchange(new AMQShortString(exchange), new AMQShortString(type), durable, autoDelete, 0); |
| } |
| |
| public Exchange createExchange(UUID id, String exchange, String type, boolean durable, boolean autoDelete) |
| throws AMQException |
| { |
| return createExchange(id, new AMQShortString(exchange), new AMQShortString(type), durable, autoDelete, 0); |
| } |
| |
| public Exchange createExchange(AMQShortString exchange, AMQShortString type, boolean durable, |
| boolean autoDelete, int ticket) |
| throws AMQException |
| { |
| UUID id = UUIDGenerator.generateExchangeUUID(exchange.asString(), _host.getName()); |
| return createExchange(id, exchange, type, durable, autoDelete, ticket); |
| } |
| |
| public Exchange createExchange(UUID id, AMQShortString exchange, AMQShortString type, boolean durable, |
| boolean autoDelete, int ticket) |
| throws AMQException |
| { |
| // Check access |
| if (!_host.getSecurityManager().authoriseCreateExchange(autoDelete, durable, exchange, null, null, null, type)) |
| { |
| String description = "Permission denied: exchange-name '" + exchange.asString() + "'"; |
| throw new AMQSecurityException(description); |
| } |
| |
| ExchangeType<? extends Exchange> exchType = _exchangeClassMap.get(type); |
| if (exchType == null) |
| { |
| throw new AMQUnknownExchangeType("Unknown exchange type: " + type,null); |
| } |
| |
| Exchange e = exchType.newInstance(id, _host, exchange, durable, ticket, autoDelete); |
| return e; |
| } |
| } |