diff options
Diffstat (limited to 'sca-java-1.x/tags/java-M1-final/java/sca/core/src/main/java/org/apache/tuscany/core/wire/impl/MessageChannelImpl.java')
-rw-r--r-- | sca-java-1.x/tags/java-M1-final/java/sca/core/src/main/java/org/apache/tuscany/core/wire/impl/MessageChannelImpl.java | 68 |
1 files changed, 68 insertions, 0 deletions
diff --git a/sca-java-1.x/tags/java-M1-final/java/sca/core/src/main/java/org/apache/tuscany/core/wire/impl/MessageChannelImpl.java b/sca-java-1.x/tags/java-M1-final/java/sca/core/src/main/java/org/apache/tuscany/core/wire/impl/MessageChannelImpl.java new file mode 100644 index 0000000000..8b9d484313 --- /dev/null +++ b/sca-java-1.x/tags/java-M1-final/java/sca/core/src/main/java/org/apache/tuscany/core/wire/impl/MessageChannelImpl.java @@ -0,0 +1,68 @@ +/** + * + * Copyright 2005 The Apache Software Foundation or its licensors, as applicable. + * + * Licensed 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.tuscany.core.wire.impl; + +import org.apache.tuscany.core.wire.MessageChannel; +import org.apache.tuscany.core.wire.MessageHandler; +import org.apache.tuscany.core.message.Message; + +import java.util.List; + +/** + * A channel comprising an ordered collection of message handlers. + * + *@see org.apache.tuscany.core.message.Message + * @version $Rev$ $Date$ + */ +public class MessageChannelImpl implements MessageChannel { + + private final List<MessageHandler> pipeline; + + //---------------------------------- + // Constructors + //---------------------------------- + + /** + * Construct a new channel comprising the supplied list of handlers. + * + * @param pipeline the Handlers in the channel + */ + public MessageChannelImpl(List<MessageHandler> pipeline) { + this.pipeline = pipeline; + } + + //---------------------------------- + // Methods + //---------------------------------- + + /** + * Send a message down the channel. The message will be processed by all handlers + * in order until one returns false to indicate processing is complete or all + * handlers have been called. + * + * @param msg a Message to send down the channel + */ + public void send(Message msg) { + if (pipeline!=null) { + for (MessageHandler handler : pipeline) { + if (!handler.processMessage(msg)) { + break; + } + } + } + } +} |