| /* |
| * 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) 2001, 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 org.apache.xerces.xni.XNIException; |
| import org.apache.xerces.xni.parser.XMLEntityResolver; |
| import org.apache.xerces.xni.parser.XMLInputSource; |
| |
| import org.apache.xerces.dom3.ls.DOMEntityResolver; |
| import org.apache.xerces.dom3.ls.DOMInputSource; |
| |
| import java.io.InputStream; |
| import java.io.IOException; |
| import java.io.Reader; |
| |
| |
| /** |
| * This class wraps DOM entity resolver to XNI entity resolver. |
| * |
| * @see DOMEntityResolver |
| * |
| * @author Gopal Sharma, SUN MicroSystems Inc. |
| * @author Elena Litani, IBM |
| * |
| */ |
| public class DOMEntityResolverWrapper |
| implements XMLEntityResolver { |
| |
| // |
| // Data |
| // |
| |
| /** The DOM entity resolver. */ |
| protected DOMEntityResolver fEntityResolver; |
| |
| // |
| // Constructors |
| // |
| |
| /** Default constructor. */ |
| public DOMEntityResolverWrapper() {} |
| |
| /** Wraps the specified DOM entity resolver. */ |
| public DOMEntityResolverWrapper(DOMEntityResolver entityResolver) { |
| setEntityResolver(entityResolver); |
| } // DOMEntityResolver |
| |
| // |
| // Public methods |
| // |
| |
| /** Sets the DOM entity resolver. */ |
| public void setEntityResolver(DOMEntityResolver entityResolver) { |
| fEntityResolver = entityResolver; |
| } // setEntityResolver(DOMEntityResolver) |
| |
| /** Returns the DOM entity resolver. */ |
| public DOMEntityResolver getEntityResolver() { |
| return fEntityResolver; |
| } // getEntityResolver():DOMEntityResolver |
| |
| // |
| // XMLEntityResolver methods |
| // |
| |
| /** |
| * Resolves an external parsed entity. If the entity cannot be |
| * resolved, this method should return null. |
| * |
| * @param publicId |
| * @param systemId |
| * @param baseSystemId The base system identifier. |
| * |
| * @throws XNIException Thrown on general error. |
| * @throws IOException Thrown if resolved entity stream cannot be |
| * opened or some other i/o error occurs. |
| */ |
| public XMLInputSource resolveEntity(String publicId, String systemId, |
| String baseSystemId) |
| throws XNIException, IOException { |
| |
| // resolve entity using DOM entity resolver |
| if (fEntityResolver != null) { |
| try { |
| DOMInputSource inputSource = |
| fEntityResolver.resolveEntity(publicId, systemId, baseSystemId); |
| if (inputSource != null) { |
| publicId = inputSource.getPublicId(); |
| systemId = inputSource.getSystemId(); |
| InputStream byteStream = inputSource.getByteStream(); |
| Reader charStream = inputSource.getCharacterStream(); |
| String encoding = inputSource.getEncoding(); |
| XMLInputSource xmlInputSource = |
| new XMLInputSource(publicId, systemId, baseSystemId); |
| xmlInputSource.setByteStream((InputStream)byteStream); |
| xmlInputSource.setCharacterStream(charStream); |
| xmlInputSource.setEncoding(encoding); |
| return xmlInputSource; |
| } |
| } |
| |
| // error resolving entity |
| catch (Exception e) { |
| // REVISIT: |
| // can at this point we receive wrapped exception? |
| |
| throw new XNIException(e); |
| } |
| } |
| |
| // unable to resolve entity |
| return null; |
| |
| } // resolveEntity(String,String,String):XMLInputSource |
| |
| } // DOMEntityResolverWrapper |
