1 files changed, 105 insertions, 0 deletions
diff --git a/qpid/java/broker-core/src/main/java/org/apache/qpid/server/message/MessageSource.java b/qpid/java/broker-core/src/main/java/org/apache/qpid/server/message/MessageSource.java
new file mode 100644
index 0000000000..06ff76f103
--- /dev/null
+++ b/qpid/java/broker-core/src/main/java/org/apache/qpid/server/message/MessageSource.java
@@ -0,0 +1,105 @@
+/*
+ *
+ * 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.message;
+
+import org.apache.qpid.AMQException;
+import org.apache.qpid.server.consumer.Consumer;
+import org.apache.qpid.server.consumer.ConsumerTarget;
+import org.apache.qpid.server.filter.FilterManager;
+import org.apache.qpid.server.protocol.AMQSessionModel;
+import org.apache.qpid.server.queue.AMQQueue;
+import org.apache.qpid.server.security.AuthorizationHolder;
+import org.apache.qpid.server.store.TransactionLogResource;
+
+import java.util.Collection;
+import java.util.EnumSet;
+
+public interface MessageSource<C extends Consumer> extends TransactionLogResource, MessageNode
+{
+    C addConsumer(ConsumerTarget target, FilterManager filters,
+                         Class<? extends ServerMessage> messageClass,
+                         String consumerName, EnumSet<Consumer.Option> options) throws AMQException;
+
+    Collection<C> getConsumers();
+
+    void addConsumerRegistrationListener(ConsumerRegistrationListener listener);
+
+    void removeConsumerRegistrationListener(ConsumerRegistrationListener listener);
+
+    AuthorizationHolder getAuthorizationHolder();
+
+    void setAuthorizationHolder(AuthorizationHolder principalHolder);
+
+    void setExclusiveOwningSession(AMQSessionModel owner);
+
+    AMQSessionModel getExclusiveOwningSession();
+
+    boolean isExclusive();
+
+    interface ConsumerRegistrationListener
+    {
+        void consumerAdded(AMQQueue queue, Consumer consumer);
+        void consumerRemoved(AMQQueue queue, Consumer consumer);
+    }
+
+    /**
+     * ExistingExclusiveConsumer signals a failure to create a consumer, because an exclusive consumer
+     * already exists.
+     *
+     * <p/><table id="crc"><caption>CRC Card</caption>
+     * <tr><th> Responsibilities <th> Collaborations
+     * <tr><td> Represent failure to create a consumer, because an exclusive consumer already exists.
+     * </table>
+     *
+     * @todo Not an AMQP exception as no status code.
+     *
+     * @todo Move to top level, used outside this class.
+     */
+    static final class ExistingExclusiveConsumer extends AMQException
+    {
+
+        public ExistingExclusiveConsumer()
+        {
+            super("");
+        }
+    }
+
+    /**
+     * ExistingConsumerPreventsExclusive signals a failure to create an exclusive consumer, as a consumer
+     * already exists.
+     *
+     * <p/><table id="crc"><caption>CRC Card</caption>
+     * <tr><th> Responsibilities <th> Collaborations
+     * <tr><td> Represent failure to create an exclusive consumer, as a consumer already exists.
+     * </table>
+     *
+     * @todo Not an AMQP exception as no status code.
+     *
+     * @todo Move to top level, used outside this class.
+     */
+    static final class ExistingConsumerPreventsExclusive extends AMQException
+    {
+        public ExistingConsumerPreventsExclusive()
+        {
+            super("");
+        }
+    }
+}