| /* |
| * The Apache Software License, Version 1.1 |
| * |
| * |
| * Copyright (c) 1999 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.readers; |
| |
| import org.apache.xerces.framework.XMLErrorReporter; |
| import org.apache.xerces.utils.ChunkyByteArray; |
| import org.apache.xerces.utils.StringPool; |
| import org.xml.sax.InputSource; |
| import java.io.InputStream; |
| import java.io.InputStreamReader; |
| import java.io.Reader; |
| import java.net.URL; |
| import java.util.Stack; |
| |
| public class DefaultReaderFactory implements XMLEntityReaderFactory { |
| // |
| // Constants |
| // |
| private static final boolean USE_CHAR_READER_FOR_UTF8 = false; |
| private static final boolean USE_BYTE_READER_FOR_UTF8 = true; |
| |
| // |
| // Instance variables |
| // |
| private boolean fSendCharDataAsCharArray = false; |
| private boolean fAllowJavaEncodingName = false; |
| private Stack fRecognizers = null; |
| |
| /** |
| * Constructor |
| */ |
| public DefaultReaderFactory() { |
| } |
| |
| /** |
| * Adds a recognizer. |
| * |
| * @param recognizer The XML recognizer to add. |
| */ |
| public void addRecognizer(XMLDeclRecognizer recognizer) { |
| if (fRecognizers == null) { |
| fRecognizers = new Stack(); |
| XMLDeclRecognizer.registerDefaultRecognizers(fRecognizers); |
| } |
| fRecognizers.push(recognizer); |
| } |
| |
| /** |
| * Set char data processing preference. |
| */ |
| public void setSendCharDataAsCharArray(boolean flag) { |
| fSendCharDataAsCharArray = flag; |
| } |
| |
| /** |
| * |
| */ |
| public void setAllowJavaEncodingName(boolean flag) { |
| fAllowJavaEncodingName = flag; |
| } |
| |
| /** |
| * |
| */ |
| public boolean getAllowJavaEncodingName() { |
| return fAllowJavaEncodingName; |
| } |
| |
| /** |
| * Create a reader |
| */ |
| public XMLEntityHandler.EntityReader createReader(XMLEntityHandler entityHandler, |
| XMLErrorReporter errorReporter, |
| InputSource source, |
| String systemId, boolean xmlDecl, StringPool stringPool) throws Exception { |
| |
| // create reader from source's character stream |
| if (source.getCharacterStream() != null) { |
| return createCharReader(entityHandler, errorReporter, fSendCharDataAsCharArray, source.getCharacterStream(), stringPool); |
| } |
| |
| // create reader from source's byte stream |
| if (source.getEncoding() != null && source.getByteStream() != null) { |
| java.io.Reader reader = new InputStreamReader(source.getByteStream(), source.getEncoding()); |
| return createCharReader(entityHandler, errorReporter, fSendCharDataAsCharArray, reader, stringPool); |
| } |
| |
| // create new input stream |
| InputStream is = source.getByteStream(); |
| if (is == null) { |
| |
| // create url and open the stream |
| URL url = new URL(systemId); |
| is = url.openStream(); |
| } |
| |
| // create array and find recognizer |
| ChunkyByteArray data = new ChunkyByteArray(is); |
| if (fRecognizers == null) { |
| fRecognizers = new Stack(); |
| XMLDeclRecognizer.registerDefaultRecognizers(fRecognizers); |
| } |
| for (int i = fRecognizers.size() - 1; i >= 0; i--) { |
| XMLDeclRecognizer recognizer = (XMLDeclRecognizer)fRecognizers.elementAt(i); |
| XMLEntityHandler.EntityReader reader = recognizer.recognize(this, entityHandler, errorReporter, fSendCharDataAsCharArray, stringPool, data, xmlDecl, fAllowJavaEncodingName); |
| if (reader != null) { |
| return reader; |
| } |
| } |
| return createUTF8Reader(entityHandler, errorReporter, fSendCharDataAsCharArray, data, stringPool); |
| } |
| |
| /** |
| * Create an entity reader for a character stream. |
| * |
| * @param enityHandler The entity handler. |
| * @param errorReporter The error reporter. |
| * @param sendCharDataAsCharArray true if char data should be reported using |
| * char arrays instead of string handles. |
| * @param reader The character stream. |
| * @param stringPool The string pool. |
| * @return The reader that will process the character data. |
| * @exception java.lang.Exception |
| */ |
| public XMLEntityHandler.EntityReader createCharReader(XMLEntityHandler entityHandler, |
| XMLErrorReporter errorReporter, |
| boolean sendCharDataAsCharArray, |
| Reader reader, |
| StringPool stringPool) throws Exception |
| { |
| return new CharReader(entityHandler, errorReporter, sendCharDataAsCharArray, reader, stringPool); |
| } |
| |
| /** |
| * Create an entity reader for a byte stream encoded in UTF-8. |
| * |
| * @param enityHandler The entity handler. |
| * @param errorReporter The error reporter. |
| * @param sendCharDataAsCharArray true if char data should be reported using |
| * char arrays instead of string handles. |
| * @param data The byte stream. |
| * @param stringPool The string pool. |
| * @return The reader that will process the UTF-8 data. |
| * @exception java.lang.Exception |
| */ |
| public XMLEntityHandler.EntityReader createUTF8Reader(XMLEntityHandler entityHandler, |
| XMLErrorReporter errorReporter, |
| boolean sendCharDataAsCharArray, |
| InputStream data, |
| StringPool stringPool) throws Exception |
| { |
| XMLEntityHandler.EntityReader reader; |
| if (USE_CHAR_READER_FOR_UTF8) { |
| reader = new CharReader(entityHandler, errorReporter, sendCharDataAsCharArray, new InputStreamReader(data, "UTF8"), stringPool); |
| } else if (USE_BYTE_READER_FOR_UTF8) { |
| reader = new UTF8Reader(entityHandler, errorReporter, sendCharDataAsCharArray, data, stringPool); |
| } else { |
| reader = new UTF8CharReader(entityHandler, errorReporter, sendCharDataAsCharArray, data, stringPool); |
| } |
| return reader; |
| } |
| |
| /** |
| * Create an entity reader for data from a String. |
| * |
| * @param entityHandler The current entity handler. |
| * @param errorReporter The current error reporter. |
| * @param sendCharDataAsCharArray true if char data should be reported using |
| * char arrays instead of string handles. |
| * @param lineNumber The line number to return as our position. |
| * @param columnNumber The column number to return as our position. |
| * @param stringHandle The StringPool handle for the data to process. |
| * @param stringPool The string pool. |
| * @param addEnclosingSpaces If true, treat the data to process as if |
| * there were a leading and trailing space |
| * character enclosing the string data. |
| * @return The reader that will process the string data. |
| * @exception java.lang.Exception |
| */ |
| public XMLEntityHandler.EntityReader createStringReader(XMLEntityHandler entityHandler, |
| XMLErrorReporter errorReporter, |
| boolean sendCharDataAsCharArray, |
| int lineNumber, |
| int columnNumber, |
| int stringHandle, |
| StringPool stringPool, |
| boolean addEnclosingSpaces) throws Exception |
| { |
| return StringReader.createStringReader(entityHandler, errorReporter, sendCharDataAsCharArray, |
| lineNumber, columnNumber, stringHandle, stringPool, addEnclosingSpaces); |
| } |
| } |