| /* |
| * The Apache Software License, Version 1.1 |
| * |
| * |
| * Copyright (c) 2001 The Apache Software Foundation. |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in |
| * the documentation and/or other materials provided with the |
| * distribution. |
| * |
| * 3. The end-user documentation included with the redistribution, |
| * if any, must include the following acknowledgment: |
| * "This product includes software developed by the |
| * Apache Software Foundation (http://www.apache.org/)." |
| * Alternately, this acknowledgment may appear in the software itself, |
| * if and wherever such third-party acknowledgments normally appear. |
| * |
| * 4. The names "Xerces" and "Apache Software Foundation" must |
| * not be used to endorse or promote products derived from this |
| * software without prior written permission. For written |
| * permission, please contact apache@apache.org. |
| * |
| * 5. Products derived from this software may not be called "Apache", |
| * nor may "Apache" appear in their name, without prior written |
| * permission of the Apache Software Foundation. |
| * |
| * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED |
| * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
| * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
| * DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR |
| * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF |
| * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND |
| * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, |
| * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT |
| * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| * SUCH DAMAGE. |
| * ==================================================================== |
| * |
| * This software consists of voluntary contributions made by many |
| * individuals on behalf of the Apache Software Foundation and was |
| * originally based on software copyright (c) 1999, International |
| * Business Machines, Inc., http://www.apache.org. For more |
| * information on the Apache Software Foundation, please see |
| * <http://www.apache.org/>. |
| */ |
| |
| package org.apache.xerces.util; |
| |
| import java.io.InputStream; |
| import java.io.IOException; |
| import java.io.Reader; |
| |
| import org.apache.xerces.xni.XMLLocator; |
| import org.apache.xerces.xni.XNIException; |
| import org.apache.xerces.xni.parser.XMLErrorHandler; |
| import org.apache.xerces.xni.parser.XMLParseException; |
| |
| import org.xml.sax.ErrorHandler; |
| import org.xml.sax.SAXException; |
| import org.xml.sax.SAXParseException; |
| |
| /** |
| * This class wraps a SAX error handler in an XNI error handler. |
| * |
| * @see ErrorHandler |
| * |
| * @author Andy Clark, IBM |
| * |
| * @version $Id$ |
| */ |
| public class ErrorHandlerWrapper |
| implements XMLErrorHandler { |
| |
| // |
| // Data |
| // |
| |
| /** The SAX error handler. */ |
| protected ErrorHandler fErrorHandler; |
| |
| // |
| // Constructors |
| // |
| |
| /** Default constructor. */ |
| public ErrorHandlerWrapper() {} |
| |
| /** Wraps the specified SAX error handler. */ |
| public ErrorHandlerWrapper(ErrorHandler errorHandler) { |
| setErrorHandler(errorHandler); |
| } // <init>(ErrorHandler) |
| |
| // |
| // Public methods |
| // |
| |
| /** Sets the SAX error handler. */ |
| public void setErrorHandler(ErrorHandler errorHandler) { |
| fErrorHandler = errorHandler; |
| } // setErrorHandler(ErrorHandler) |
| |
| /** Returns the SAX error handler. */ |
| public ErrorHandler getErrorHandler() { |
| return fErrorHandler; |
| } // getErrorHandler():ErrorHandler |
| |
| // |
| // XMLErrorHandler methods |
| // |
| |
| /** |
| * Reports a warning. Warnings are non-fatal and can be safely ignored |
| * by most applications. |
| * |
| * @param domain The domain of the warning. The domain can be any |
| * string but is suggested to be a valid URI. The |
| * domain can be used to conveniently specify a web |
| * site location of the relevent specification or |
| * document pertaining to this warning. |
| * @param key The warning key. This key can be any string and |
| * is implementation dependent. |
| * @param exception Exception. |
| * |
| * @throws XNIException Thrown to signal that the parser should stop |
| * parsing the document. |
| */ |
| public void warning(String domain, String key, |
| XMLParseException exception) throws XNIException { |
| |
| SAXParseException saxException = createSAXParseException(exception); |
| try { |
| fErrorHandler.warning(saxException); |
| } |
| catch (SAXParseException e) { |
| throw createXMLParseException(e); |
| } |
| catch (SAXException e) { |
| throw createXNIException(e); |
| } |
| |
| } // warning(String,String,XMLParseException) |
| |
| /** |
| * Reports an error. Errors are non-fatal and usually signify that the |
| * document is invalid with respect to its grammar(s). |
| * |
| * @param domain The domain of the error. The domain can be any |
| * string but is suggested to be a valid URI. The |
| * domain can be used to conveniently specify a web |
| * site location of the relevent specification or |
| * document pertaining to this error. |
| * @param key The error key. This key can be any string and |
| * is implementation dependent. |
| * @param exception Exception. |
| * |
| * @throws XNIException Thrown to signal that the parser should stop |
| * parsing the document. |
| */ |
| public void error(String domain, String key, |
| XMLParseException exception) throws XNIException { |
| |
| SAXParseException saxException = createSAXParseException(exception); |
| try { |
| fErrorHandler.error(saxException); |
| } |
| catch (SAXParseException e) { |
| throw createXMLParseException(e); |
| } |
| catch (SAXException e) { |
| throw createXNIException(e); |
| } |
| |
| } // error(String,String,XMLParseException) |
| |
| /** |
| * Report a fatal error. Fatal errors usually occur when the document |
| * is not well-formed and signifies that the parser cannot continue |
| * normal operation. |
| * <p> |
| * <strong>Note:</strong> The error handler should <em>always</em> |
| * throw an <code>XNIException</code> from this method. This exception |
| * can either be the same exception that is passed as a parameter to |
| * the method or a new XNI exception object. If the registered error |
| * handler fails to throw an exception, the continuing operation of |
| * the parser is undetermined. |
| * |
| * @param domain The domain of the fatal error. The domain can be |
| * any string but is suggested to be a valid URI. The |
| * domain can be used to conveniently specify a web |
| * site location of the relevent specification or |
| * document pertaining to this fatal error. |
| * @param key The fatal error key. This key can be any string |
| * and is implementation dependent. |
| * @param exception Exception. |
| * |
| * @throws XNIException Thrown to signal that the parser should stop |
| * parsing the document. |
| */ |
| public void fatalError(String domain, String key, |
| XMLParseException exception) throws XNIException { |
| |
| SAXParseException saxException = createSAXParseException(exception); |
| try { |
| fErrorHandler.fatalError(saxException); |
| } |
| catch (SAXParseException e) { |
| throw createXMLParseException(e); |
| } |
| catch (SAXException e) { |
| throw createXNIException(e); |
| } |
| |
| } // fatalError(String,String,XMLParseException) |
| |
| // |
| // Protected methods |
| // |
| |
| /** Creates a SAXParseException from an XMLParseException. */ |
| protected static SAXParseException createSAXParseException(XMLParseException exception) { |
| return new SAXParseException(exception.getMessage(), |
| exception.getPublicId(), |
| exception.getSystemId(), |
| exception.getLineNumber(), |
| exception.getColumnNumber(), |
| exception.getException()); |
| } // createSAXParseException(XMLParseException):SAXParseException |
| |
| /** Creates an XMLParseException from a SAXParseException. */ |
| protected static XMLParseException createXMLParseException(SAXParseException exception) { |
| final String fPublicId = exception.getPublicId(); |
| final String fSystemId = exception.getSystemId(); |
| final int fLineNumber = exception.getLineNumber(); |
| final int fColumnNumber = exception.getColumnNumber(); |
| XMLLocator location = new XMLLocator() { |
| public String getPublicId() { return fPublicId; } |
| public String getSystemId() { return fSystemId; } |
| public String getBaseSystemId() { return null; } |
| public int getColumnNumber() { return fColumnNumber; } |
| public int getLineNumber() { return fLineNumber; } |
| }; |
| return new XMLParseException(location, exception.getMessage(), |
| exception.getException()); |
| } // createXMLParseException(SAXParseException):XMLParseException |
| |
| /** Creates an XNIException from a SAXException. |
| NOTE: care should be taken *not* to call this with a SAXParseException; this will |
| lose information!!! */ |
| protected static XNIException createXNIException(SAXException exception) { |
| return new XNIException(exception.getMessage(), |
| exception.getException()); |
| } // createXNIException(SAXException):XMLParseException |
| } // class ErrorHandlerWrapper |
