| /* |
| * reserved comment block |
| * DO NOT REMOVE OR ALTER! |
| */ |
| /* |
| * Copyright 2001-2004 The Apache Software Foundation. |
| * |
| * 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 com.sun.org.apache.xerces.internal.util; |
| |
| import com.sun.org.apache.xerces.internal.xni.XMLLocator; |
| import com.sun.org.apache.xerces.internal.xni.XNIException; |
| import com.sun.org.apache.xerces.internal.xni.parser.XMLErrorHandler; |
| import com.sun.org.apache.xerces.internal.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 |
| * |
| */ |
| 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 { |
| |
| if (fErrorHandler != null) { |
| 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 { |
| |
| if (fErrorHandler != null) { |
| 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 { |
| |
| if (fErrorHandler != null) { |
| 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.getExpandedSystemId(), |
| 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 fExpandedSystemId = exception.getSystemId(); |
| final int fLineNumber = exception.getLineNumber(); |
| final int fColumnNumber = exception.getColumnNumber(); |
| XMLLocator location = new XMLLocator() { |
| public String getPublicId() { return fPublicId; } |
| public String getExpandedSystemId() { return fExpandedSystemId; } |
| public String getBaseSystemId() { return null; } |
| public String getLiteralSystemId() { return null; } |
| public int getColumnNumber() { return fColumnNumber; } |
| public int getLineNumber() { return fLineNumber; } |
| public int getCharacterOffset() { return -1; } |
| public String getEncoding() { return null; } |
| public String getXMLVersion() { return null; } |
| }; |
| return new XMLParseException(location, exception.getMessage(),exception); |
| } // 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); |
| } // createXNIException(SAXException):XMLParseException |
| } // class ErrorHandlerWrapper |