001: /*
002: * Copyright (c) 1998-2000 Caucho Technology -- all rights reserved
003: *
004: * This file is part of Resin(R) Open Source
005: *
006: * Each copy or derived work must preserve the copyright notice and this
007: * notice unmodified.
008: *
009: * Resin Open Source is free software; you can redistribute it and/or modify
010: * it under the terms of the GNU General Public License as published by
011: * the Free Software Foundation; either version 2 of the License, or
012: * (at your option) any later version.
013: *
014: * Resin Open Source is distributed in the hope that it will be useful,
015: * but WITHOUT ANY WARRANTY; without even the implied warranty of
016: * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, or any warranty
017: * of NON-INFRINGEMENT. See the GNU General Public License for more
018: * details.
019: *
020: * You should have received a copy of the GNU General Public License
021: * along with Resin Open Source; if not, write to the
022: * Free SoftwareFoundation, Inc.
023: * 59 Temple Place, Suite 330
024: * Boston, MA 02111-1307 USA
025: *
026: * @author Scott Ferguson
027: */
028:
029: package com.caucho.ejb.burlap;
030:
031: import com.caucho.util.ExceptionWrapper;
032:
033: import java.io.PrintStream;
034: import java.io.PrintWriter;
035: import java.rmi.RemoteException;
036:
037: /**
038: * Wraps the actual exception with a burlap protocol exception
039: */
040: public class BurlapProtocolException extends java.rmi.RemoteException
041: implements ExceptionWrapper {
042: private Throwable rootCause;
043:
044: /**
045: * Null constructor for beans
046: */
047: public BurlapProtocolException() {
048: }
049:
050: /**
051: * Create a basic BurlapProtocolException with a message.
052: *
053: * @param msg the exception message.
054: */
055: public BurlapProtocolException(String msg) {
056: super (msg);
057: }
058:
059: /**
060: * Create a BurlapProtocolException wrapping a root exception.
061: *
062: * @param rootCause the underlying wrapped exception.
063: */
064: public BurlapProtocolException(Throwable rootCause) {
065: super (rootCause.getMessage());
066:
067: this .rootCause = rootCause;
068: }
069:
070: /**
071: * Creates an BurlapProtocol from a throwable.
072: */
073: public static BurlapProtocolException create(Throwable rootCause) {
074: if (rootCause instanceof BurlapProtocolException)
075: return ((BurlapProtocolException) rootCause);
076: else
077: return new BurlapProtocolException(rootCause);
078: }
079:
080: /**
081: * Creates a runtime from a throwable.
082: */
083: public static RemoteException createRemote(Throwable rootCause) {
084: if (rootCause instanceof RemoteException)
085: return ((RemoteException) rootCause);
086: else
087: return new BurlapProtocolException(rootCause);
088: }
089:
090: /**
091: * Returns the root exception if it exists.
092: *
093: * @return the underlying wrapped exception.
094: */
095: public Throwable getRootCause() {
096: return rootCause;
097: }
098:
099: /**
100: * Returns the appropriate exception message.
101: */
102: public String getMessage() {
103: if (rootCause != null)
104: return rootCause.getMessage();
105: else
106: return super .getMessage();
107: }
108:
109: /**
110: * Prints the stack trace, preferring the root cause if it exists.
111: */
112: public void printStackTrace() {
113: if (rootCause != null)
114: rootCause.printStackTrace();
115: else
116: super .printStackTrace();
117: }
118:
119: /**
120: * Prints the stack trace, preferring the root cause if it exists.
121: */
122: public void printStackTrace(PrintStream os) {
123: if (rootCause != null)
124: rootCause.printStackTrace(os);
125: else
126: super .printStackTrace(os);
127: }
128:
129: /**
130: * Prints the stack trace, preferring the root cause if it exists.
131: */
132: public void printStackTrace(PrintWriter os) {
133: if (rootCause != null)
134: rootCause.printStackTrace(os);
135: else
136: super .printStackTrace(os);
137: }
138:
139: /**
140: * Print the exception as a string.
141: */
142: public String toString() {
143: if (rootCause == null)
144: return super .toString();
145: else
146: return getClass().getName() + ": " + rootCause;
147: }
148: }
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