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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;
+
+import org.apache.qpid.protocol.AMQConstant;
+
+/**
+ * AMQException forms the root exception of all exceptions relating to the AMQ protocol. It provides space to associate
+ * a required AMQ error code with the exception, which is a numeric value, with a meaning defined by the protocol.
+ *
+ * <p/><table id="crc"><caption>CRC Card</caption>
+ * <tr><th> Responsibilities <th> Collaborations
+ * <tr><td> Represents an exception condition associated with an AMQ protocol status code.
+ * </table>
+ *
+ * @todo This exception class is also used as a generic exception throughout Qpid code. This usage may not be strictly
+ * correct if this is to signify a protocol exception. Should review.
+ */
+public class AMQException extends Exception
+{
+ /** Holds the AMQ error code constant associated with this exception. */
+ private AMQConstant _errorCode;
+
+ /**
+ * Creates an exception with an optional error code, optional message and optional underlying cause.
+ *
+ * @param errorCode The error code. May be null if not to be set.
+ * @param msg The exception message. May be null if not to be set.
+ * @param cause The underlying cause of the exception. May be null if not to be set.
+ */
+ public AMQException(AMQConstant errorCode, String msg, Throwable cause)
+ {
+ super(((msg == null) ? "" : msg), cause);
+ _errorCode = errorCode;
+ }
+
+ /*
+ * Deprecated constructors brought from M2.1
+ */
+ @Deprecated
+ public AMQException(String msg)
+ {
+ this(null, (msg == null) ? "" : msg);
+ }
+
+ @Deprecated
+ public AMQException(AMQConstant errorCode, String msg)
+ {
+ this(errorCode, (msg == null) ? "" : msg, null);
+ }
+
+ @Deprecated
+ public AMQException(String msg, Throwable cause)
+ {
+ this(null, msg, cause);
+ }
+
+ @Override
+ public String toString()
+ {
+ return getClass().getName() + ": " + getMessage() + (_errorCode == null ? "" : " [error code " + _errorCode + "]");
+ }
+
+ /**
+ * Gets the AMQ protocol exception code associated with this exception.
+ *
+ * @return The AMQ protocol exception code associated with this exception.
+ */
+ public AMQConstant getErrorCode()
+ {
+ return _errorCode;
+ }
+
+ public boolean isHardError()
+ {
+ return true;
+ }
+
+ /**
+ * Rethrown this exception as a new exception.
+ *
+ * Attempt to create a new exception of the same class if they have the default constructor of:
+ * {AMQConstant.class, String.class, Throwable.class}
+ * <p>
+ * Individual subclasses may override as requried to create a new instance.
+ */
+ public AMQException cloneForCurrentThread()
+ {
+ Class amqeClass = this.getClass();
+ Class<?>[] paramClasses = {AMQConstant.class, String.class, Throwable.class};
+ Object[] params = {getErrorCode(), getMessage(), this};
+
+ AMQException newAMQE;
+
+ try
+ {
+ newAMQE = (AMQException) amqeClass.getConstructor(paramClasses).newInstance(params);
+ }
+ catch (Exception creationException)
+ {
+ newAMQE = new AMQException(getErrorCode(), getMessage(), this);
+ }
+
+ return newAMQE;
+ }
+}