Java tutorial
/* * Copyright (c) 2005, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. Oracle designates this * particular file as subject to the "Classpath" exception as provided * by Oracle in the LICENSE file that accompanied this code. * * This code is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. */ /* * $Id: URIReferenceException.java,v 1.4 2005/05/10 15:47:42 mullan Exp $ */ package javax.xml.crypto; import java.io.PrintStream; import java.io.PrintWriter; import javax.xml.crypto.dsig.keyinfo.RetrievalMethod; /** * Indicates an exceptional condition thrown while dereferencing a * {@link URIReference}. * * <p>A {@code URIReferenceException} can contain a cause: another * throwable that caused this {@code URIReferenceException} to get thrown. * * @author Sean Mullan * @author JSR 105 Expert Group * @since 1.6 * @see URIDereferencer#dereference(URIReference, XMLCryptoContext) * @see RetrievalMethod#dereference(XMLCryptoContext) */ public class URIReferenceException extends Exception { private static final long serialVersionUID = 7173469703932561419L; /** * The throwable that caused this exception to get thrown, or null if this * exception was not caused by another throwable or if the causative * throwable is unknown. * * @serial */ private Throwable cause; private URIReference uriReference; /** * Constructs a new {@code URIReferenceException} with * {@code null} as its detail message. */ public URIReferenceException() { super(); } /** * Constructs a new {@code URIReferenceException} with the specified * detail message. * * @param message the detail message */ public URIReferenceException(String message) { super(message); } /** * Constructs a new {@code URIReferenceException} with the * specified detail message and cause. * <p>Note that the detail message associated with * {@code cause} is <i>not</i> automatically incorporated in * this exception's detail message. * * @param message the detail message * @param cause the cause (A {@code null} value is permitted, and * indicates that the cause is nonexistent or unknown.) */ public URIReferenceException(String message, Throwable cause) { super(message); this.cause = cause; } /** * Constructs a new {@code URIReferenceException} with the * specified detail message, cause and {@code URIReference}. * <p>Note that the detail message associated with * {@code cause} is <i>not</i> automatically incorporated in * this exception's detail message. * * @param message the detail message * @param cause the cause (A {@code null} value is permitted, and * indicates that the cause is nonexistent or unknown.) * @param uriReference the {@code URIReference} that was being * dereferenced when the error was encountered * @throws NullPointerException if {@code uriReference} is * {@code null} */ public URIReferenceException(String message, Throwable cause, URIReference uriReference) { this(message, cause); if (uriReference == null) { throw new NullPointerException("uriReference cannot be null"); } this.uriReference = uriReference; } /** * Constructs a new {@code URIReferenceException} with the specified * cause and a detail message of {@code (cause==null ? null : * cause.toString())} (which typically contains the class and detail * message of {@code cause}). * * @param cause the cause (A {@code null} value is permitted, and * indicates that the cause is nonexistent or unknown.) */ public URIReferenceException(Throwable cause) { super(cause == null ? null : cause.toString()); this.cause = cause; } /** * Returns the {@code URIReference} that was being dereferenced * when the exception was thrown. * * @return the {@code URIReference} that was being dereferenced * when the exception was thrown, or {@code null} if not specified */ public URIReference getURIReference() { return uriReference; } /** * Returns the cause of this {@code URIReferenceException} or * {@code null} if the cause is nonexistent or unknown. (The * cause is the throwable that caused this * {@code URIReferenceException} to get thrown.) * * @return the cause of this {@code URIReferenceException} or * {@code null} if the cause is nonexistent or unknown. */ public Throwable getCause() { return cause; } /** * Prints this {@code URIReferenceException}, its backtrace and * the cause's backtrace to the standard error stream. */ public void printStackTrace() { super.printStackTrace(); //XXX print backtrace of cause } /** * Prints this {@code URIReferenceException}, its backtrace and * the cause's backtrace to the specified print stream. * * @param s {@code PrintStream} to use for output */ public void printStackTrace(PrintStream s) { super.printStackTrace(s); //XXX print backtrace of cause } /** * Prints this {@code URIReferenceException}, its backtrace and * the cause's backtrace to the specified print writer. * * @param s {@code PrintWriter} to use for output */ public void printStackTrace(PrintWriter s) { super.printStackTrace(s); //XXX print backtrace of cause } }