| /* |
| * Copyright (c) 2005, 2012, 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. |
| */ |
| |
| package com.sun.xml.internal.stream.buffer.sax; |
| |
| import com.sun.xml.internal.stream.buffer.AbstractCreator; |
| import org.xml.sax.Attributes; |
| import org.xml.sax.SAXException; |
| import com.sun.xml.internal.stream.buffer.MutableXMLStreamBuffer; |
| import java.io.IOException; |
| import java.io.InputStream; |
| import org.xml.sax.ContentHandler; |
| import org.xml.sax.DTDHandler; |
| import org.xml.sax.EntityResolver; |
| import org.xml.sax.ErrorHandler; |
| import org.xml.sax.InputSource; |
| import org.xml.sax.Locator; |
| import org.xml.sax.SAXParseException; |
| import org.xml.sax.XMLReader; |
| import org.xml.sax.ext.LexicalHandler; |
| |
| /** |
| * Writes into {@link MutableXMLStreamBuffer} from SAX. |
| * |
| * TODO |
| * Implement the marking the stream on the element when an ID |
| * attribute on the element is defined |
| */ |
| public class SAXBufferCreator extends AbstractCreator |
| implements EntityResolver, DTDHandler, ContentHandler, ErrorHandler, LexicalHandler { |
| protected String[] _namespaceAttributes; |
| |
| protected int _namespaceAttributesPtr; |
| |
| private int depth = 0; |
| |
| public SAXBufferCreator() { |
| _namespaceAttributes = new String[16 * 2]; |
| } |
| |
| public SAXBufferCreator(MutableXMLStreamBuffer buffer) { |
| this(); |
| setBuffer(buffer); |
| } |
| |
| public MutableXMLStreamBuffer create(XMLReader reader, InputStream in) throws IOException, SAXException { |
| return create(reader, in, null); |
| } |
| |
| public MutableXMLStreamBuffer create(XMLReader reader, InputStream in, String systemId) throws IOException, SAXException { |
| if (_buffer == null) { |
| createBuffer(); |
| } |
| _buffer.setSystemId(systemId); |
| reader.setContentHandler(this); |
| reader.setProperty(Properties.LEXICAL_HANDLER_PROPERTY, this); |
| |
| try { |
| setHasInternedStrings(reader.getFeature(Features.STRING_INTERNING_FEATURE)); |
| } catch (SAXException e) { |
| } |
| |
| |
| if (systemId != null) { |
| InputSource s = new InputSource(systemId); |
| s.setByteStream(in); |
| reader.parse(s); |
| } else { |
| reader.parse(new InputSource(in)); |
| } |
| |
| return getXMLStreamBuffer(); |
| } |
| |
| public void reset() { |
| _buffer = null; |
| _namespaceAttributesPtr = 0; |
| depth=0; |
| } |
| |
| public void startDocument() throws SAXException { |
| storeStructure(T_DOCUMENT); |
| } |
| |
| public void endDocument() throws SAXException { |
| storeStructure(T_END); |
| } |
| |
| public void startPrefixMapping(String prefix, String uri) throws SAXException { |
| cacheNamespaceAttribute(prefix, uri); |
| } |
| |
| public void startElement(String uri, String localName, String qName, Attributes attributes) throws SAXException { |
| storeQualifiedName(T_ELEMENT_LN, |
| uri, localName, qName); |
| |
| // Has namespaces attributes |
| if (_namespaceAttributesPtr > 0) { |
| storeNamespaceAttributes(); |
| } |
| |
| // Has attributes |
| if (attributes.getLength() > 0) { |
| storeAttributes(attributes); |
| } |
| depth++; |
| } |
| |
| public void endElement(String uri, String localName, String qName) throws SAXException { |
| storeStructure(T_END); |
| if(--depth==0) |
| increaseTreeCount(); // one tree processed |
| } |
| |
| public void characters(char ch[], int start, int length) throws SAXException { |
| storeContentCharacters(T_TEXT_AS_CHAR_ARRAY, ch, start, length); |
| } |
| |
| public void ignorableWhitespace(char ch[], int start, int length) throws SAXException { |
| characters(ch, start, length); |
| } |
| |
| public void processingInstruction(String target, String data) throws SAXException { |
| storeStructure(T_PROCESSING_INSTRUCTION); |
| storeStructureString(target); |
| storeStructureString(data); |
| } |
| |
| public void comment(char[] ch, int start, int length) throws SAXException { |
| storeContentCharacters(T_COMMENT_AS_CHAR_ARRAY, ch, start, length); |
| } |
| |
| // |
| |
| private void cacheNamespaceAttribute(String prefix, String uri) { |
| _namespaceAttributes[_namespaceAttributesPtr++] = prefix; |
| _namespaceAttributes[_namespaceAttributesPtr++] = uri; |
| |
| if (_namespaceAttributesPtr == _namespaceAttributes.length) { |
| final String[] namespaceAttributes = new String[_namespaceAttributesPtr * 2]; |
| System.arraycopy(_namespaceAttributes, 0, namespaceAttributes, 0, _namespaceAttributesPtr); |
| _namespaceAttributes = namespaceAttributes; |
| } |
| } |
| |
| private void storeNamespaceAttributes() { |
| for (int i = 0; i < _namespaceAttributesPtr; i += 2) { |
| int item = T_NAMESPACE_ATTRIBUTE; |
| if (_namespaceAttributes[i].length() > 0) { |
| item |= FLAG_PREFIX; |
| storeStructureString(_namespaceAttributes[i]); |
| } |
| if (_namespaceAttributes[i + 1].length() > 0) { |
| item |= FLAG_URI; |
| storeStructureString(_namespaceAttributes[i + 1]); |
| } |
| storeStructure(item); |
| } |
| _namespaceAttributesPtr = 0; |
| } |
| |
| private void storeAttributes(Attributes attributes) { |
| for (int i = 0; i < attributes.getLength(); i++) { |
| // Skip NS attributes. Some versions of JDK seem to send wrong local name |
| // Also it is not stored correctly by the following. |
| if (attributes.getQName(i).startsWith("xmlns")) |
| continue; |
| storeQualifiedName(T_ATTRIBUTE_LN, |
| attributes.getURI(i), |
| attributes.getLocalName(i), |
| attributes.getQName(i)); |
| |
| storeStructureString(attributes.getType(i)); |
| storeContentString(attributes.getValue(i)); |
| } |
| } |
| |
| private void storeQualifiedName(int item, String uri, String localName, String qName) { |
| if (uri.length() > 0) { |
| item |= FLAG_URI; |
| storeStructureString(uri); |
| } |
| |
| storeStructureString(localName); |
| |
| if (qName.indexOf(':') >= 0) { |
| item |= FLAG_QUALIFIED_NAME; |
| storeStructureString(qName); |
| } |
| |
| storeStructure(item); |
| } |
| |
| |
| // Empty methods for SAX handlers |
| |
| // Entity resolver handler |
| |
| public InputSource resolveEntity (String publicId, String systemId) |
| throws IOException, SAXException |
| { |
| return null; |
| } |
| |
| // DTD handler |
| |
| public void notationDecl (String name, String publicId, String systemId) |
| throws SAXException |
| { } |
| |
| public void unparsedEntityDecl (String name, String publicId, |
| String systemId, String notationName) |
| throws SAXException |
| { } |
| |
| // Content handler |
| |
| public void setDocumentLocator (Locator locator) { } |
| |
| public void endPrefixMapping (String prefix) throws SAXException { } |
| |
| public void skippedEntity (String name) throws SAXException { } |
| |
| // Lexical handler |
| |
| public void startDTD(String name, String publicId, String systemId) throws SAXException { } |
| |
| public void endDTD() throws SAXException { } |
| |
| public void startEntity(String name) throws SAXException { } |
| |
| public void endEntity(String name) throws SAXException { } |
| |
| public void startCDATA() throws SAXException { } |
| |
| public void endCDATA() throws SAXException { } |
| |
| // Error handler |
| |
| public void warning(SAXParseException e) throws SAXException { } |
| |
| public void error(SAXParseException e) throws SAXException { } |
| |
| public void fatalError(SAXParseException e) throws SAXException |
| { |
| throw e; |
| } |
| } |