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+/*
+ *
+ * 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.test.framework;
+
+/**
+ * BrokerLifecycleAware is an awareness interface implemented by test cases that can run control the life-cycle of
+ * the brokers on which they run. Its purpose is to expose additional instrumentation of brokers during testing, that
+ * enables tests to use an automated failure mechanism to simulate broker failures, and to re-start failed brokers.
+ *
+ * <p/><table id="crc"><caption>CRC Card</caption>
+ * <tr><th> Responsibilities <th> Collaborations
+ * <tr><td> Indicate whether or not a test case is using an in-vm broker.
+ * <tr><td> Track which in-vm broker is currently in use.
+ * <tr><td> Accept setting of a failure mechanism. <td> {@link CauseFailure}.
+ * </table>
+ *
+ * @todo Need to think about how to present the brokers through this interface. Thinking numbering the available
+ * brokers from 1 will do. Then can kill 1 and assume failing onto 2. Restart 1 and kill 2 and fail back onto
+ * 1 again?
+ */
+public interface BrokerLifecycleAware
+{
+ public void setInVmBrokers();
+
+ /**
+ * Indicates whether or not a test case is using in-vm brokers.
+ *
+ * @return <tt>true</tt> if the test is using in-vm brokers, <tt>false</tt> otherwise.
+ */
+ public boolean usingInVmBroker();
+
+ /**
+ * Sets the currently live in-vm broker.
+ *
+ * @param i The currently live in-vm broker.
+ */
+ public void setLiveBroker(int i);
+
+ /**
+ * Reports the currently live in-vm broker.
+ *
+ * @return The currently live in-vm broker.
+ */
+ public int getLiveBroker();
+
+ /**
+ * Accepts a failure mechanism.
+ *
+ * @param failureMechanism The failure mechanism.
+ */
+ public void setFailureMechanism(CauseFailure failureMechanism);
+}