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Diffstat (limited to 'src/org/jivesoftware/smack/XMPPException.java')
| -rw-r--r-- | src/org/jivesoftware/smack/XMPPException.java | 219 |
1 files changed, 219 insertions, 0 deletions
diff --git a/src/org/jivesoftware/smack/XMPPException.java b/src/org/jivesoftware/smack/XMPPException.java new file mode 100644 index 0000000..6da24c2 --- /dev/null +++ b/src/org/jivesoftware/smack/XMPPException.java @@ -0,0 +1,219 @@ +/** + * $RCSfile$ + * $Revision$ + * $Date$ + * + * Copyright 2003-2007 Jive Software. + * + * All rights reserved. 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.jivesoftware.smack; + +import org.jivesoftware.smack.packet.StreamError; +import org.jivesoftware.smack.packet.XMPPError; + +import java.io.PrintStream; +import java.io.PrintWriter; + +/** + * A generic exception that is thrown when an error occurs performing an + * XMPP operation. XMPP servers can respond to error conditions with an error code + * and textual description of the problem, which are encapsulated in the XMPPError + * class. When appropriate, an XMPPError instance is attached instances of this exception.<p> + * + * When a stream error occured, the server will send a stream error to the client before + * closing the connection. Stream errors are unrecoverable errors. When a stream error + * is sent to the client an XMPPException will be thrown containing the StreamError sent + * by the server. + * + * @see XMPPError + * @author Matt Tucker + */ +public class XMPPException extends Exception { + + private StreamError streamError = null; + private XMPPError error = null; + private Throwable wrappedThrowable = null; + + /** + * Creates a new XMPPException. + */ + public XMPPException() { + super(); + } + + /** + * Creates a new XMPPException with a description of the exception. + * + * @param message description of the exception. + */ + public XMPPException(String message) { + super(message); + } + + /** + * Creates a new XMPPException with the Throwable that was the root cause of the + * exception. + * + * @param wrappedThrowable the root cause of the exception. + */ + public XMPPException(Throwable wrappedThrowable) { + super(); + this.wrappedThrowable = wrappedThrowable; + } + + /** + * Cretaes a new XMPPException with the stream error that was the root case of the + * exception. When a stream error is received from the server then the underlying + * TCP connection will be closed by the server. + * + * @param streamError the root cause of the exception. + */ + public XMPPException(StreamError streamError) { + super(); + this.streamError = streamError; + } + + /** + * Cretaes a new XMPPException with the XMPPError that was the root case of the + * exception. + * + * @param error the root cause of the exception. + */ + public XMPPException(XMPPError error) { + super(); + this.error = error; + } + + /** + * Creates a new XMPPException with a description of the exception and the + * Throwable that was the root cause of the exception. + * + * @param message a description of the exception. + * @param wrappedThrowable the root cause of the exception. + */ + public XMPPException(String message, Throwable wrappedThrowable) { + super(message); + this.wrappedThrowable = wrappedThrowable; + } + + /** + * Creates a new XMPPException with a description of the exception, an XMPPError, + * and the Throwable that was the root cause of the exception. + * + * @param message a description of the exception. + * @param error the root cause of the exception. + * @param wrappedThrowable the root cause of the exception. + */ + public XMPPException(String message, XMPPError error, Throwable wrappedThrowable) { + super(message); + this.error = error; + this.wrappedThrowable = wrappedThrowable; + } + + /** + * Creates a new XMPPException with a description of the exception and the + * XMPPException that was the root cause of the exception. + * + * @param message a description of the exception. + * @param error the root cause of the exception. + */ + public XMPPException(String message, XMPPError error) { + super(message); + this.error = error; + } + + /** + * Returns the XMPPError asscociated with this exception, or <tt>null</tt> if there + * isn't one. + * + * @return the XMPPError asscociated with this exception. + */ + public XMPPError getXMPPError() { + return error; + } + + /** + * Returns the StreamError asscociated with this exception, or <tt>null</tt> if there + * isn't one. The underlying TCP connection is closed by the server after sending the + * stream error to the client. + * + * @return the StreamError asscociated with this exception. + */ + public StreamError getStreamError() { + return streamError; + } + + /** + * Returns the Throwable asscociated with this exception, or <tt>null</tt> if there + * isn't one. + * + * @return the Throwable asscociated with this exception. + */ + public Throwable getWrappedThrowable() { + return wrappedThrowable; + } + + public void printStackTrace() { + printStackTrace(System.err); + } + + public void printStackTrace(PrintStream out) { + super.printStackTrace(out); + if (wrappedThrowable != null) { + out.println("Nested Exception: "); + wrappedThrowable.printStackTrace(out); + } + } + + public void printStackTrace(PrintWriter out) { + super.printStackTrace(out); + if (wrappedThrowable != null) { + out.println("Nested Exception: "); + wrappedThrowable.printStackTrace(out); + } + } + + public String getMessage() { + String msg = super.getMessage(); + // If the message was not set, but there is an XMPPError, return the + // XMPPError as the message. + if (msg == null && error != null) { + return error.toString(); + } + else if (msg == null && streamError != null) { + return streamError.toString(); + } + return msg; + } + + public String toString() { + StringBuilder buf = new StringBuilder(); + String message = super.getMessage(); + if (message != null) { + buf.append(message).append(": "); + } + if (error != null) { + buf.append(error); + } + if (streamError != null) { + buf.append(streamError); + } + if (wrappedThrowable != null) { + buf.append("\n -- caused by: ").append(wrappedThrowable); + } + + return buf.toString(); + } +}
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