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author | upstream source tree <ports@midipix.org> | 2015-03-15 20:14:05 -0400 |
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committer | upstream source tree <ports@midipix.org> | 2015-03-15 20:14:05 -0400 |
commit | 554fd8c5195424bdbcabf5de30fdc183aba391bd (patch) | |
tree | 976dc5ab7fddf506dadce60ae936f43f58787092 /libjava/classpath/gnu/xml/dom/JAXPFactory.java | |
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Diffstat (limited to 'libjava/classpath/gnu/xml/dom/JAXPFactory.java')
-rw-r--r-- | libjava/classpath/gnu/xml/dom/JAXPFactory.java | 308 |
1 files changed, 308 insertions, 0 deletions
diff --git a/libjava/classpath/gnu/xml/dom/JAXPFactory.java b/libjava/classpath/gnu/xml/dom/JAXPFactory.java new file mode 100644 index 000000000..d7d399b5b --- /dev/null +++ b/libjava/classpath/gnu/xml/dom/JAXPFactory.java @@ -0,0 +1,308 @@ +/* JAXPFactory.java -- + Copyright (C) 2001 Free Software Foundation, Inc. + +This file is part of GNU Classpath. + +GNU Classpath is free software; you can redistribute it and/or modify +it under the terms of the GNU General Public License as published by +the Free Software Foundation; either version 2, or (at your option) +any later version. + +GNU Classpath 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 for more details. + +You should have received a copy of the GNU General Public License +along with GNU Classpath; see the file COPYING. If not, write to the +Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA +02110-1301 USA. + +Linking this library statically or dynamically with other modules is +making a combined work based on this library. Thus, the terms and +conditions of the GNU General Public License cover the whole +combination. + +As a special exception, the copyright holders of this library give you +permission to link this library with independent modules to produce an +executable, regardless of the license terms of these independent +modules, and to copy and distribute the resulting executable under +terms of your choice, provided that you also meet, for each linked +independent module, the terms and conditions of the license of that +module. An independent module is a module which is not derived from +or based on this library. If you modify this library, you may extend +this exception to your version of the library, but you are not +obligated to do so. If you do not wish to do so, delete this +exception statement from your version. */ + +package gnu.xml.dom; + +import java.io.IOException; + +import org.w3c.dom.Document; +import org.w3c.dom.DOMImplementation; + +import org.xml.sax.EntityResolver; +import org.xml.sax.ErrorHandler; +import org.xml.sax.InputSource; +import org.xml.sax.XMLReader; +import org.xml.sax.SAXException; +import org.xml.sax.SAXParseException; + +import javax.xml.XMLConstants; +import javax.xml.parsers.DocumentBuilder; +import javax.xml.parsers.DocumentBuilderFactory; +import javax.xml.parsers.ParserConfigurationException; +import javax.xml.parsers.SAXParserFactory; + + +/** + * DOM bootstrapping API, for use with JAXP. + * + * @see Consumer + * + * @author David Brownell + */ +public final class JAXPFactory + extends DocumentBuilderFactory +{ + + private static final String PROPERTY = "http://xml.org/sax/properties/"; + private static final String FEATURE = "http://xml.org/sax/features/"; + + private SAXParserFactory pf; + private boolean secureProcessing; + + /** + * Default constructor. + */ + public JAXPFactory() + { + } + + /** + * Constructs a JAXP document builder which uses the default + * JAXP SAX2 parser and the DOM implementation in this package. + */ + public DocumentBuilder newDocumentBuilder() + throws ParserConfigurationException + { + if (pf == null) + { + // Force use of AElfred2 since not all JAXP parsers + // conform very well to the SAX2 API spec ... + pf = new gnu.xml.aelfred2.JAXPFactory(); + // pf = SAXParserFactory.newInstance (); + } + + // JAXP default: false + pf.setValidating(isValidating()); + + // FIXME: this namespace setup may cause errors in some + // conformant SAX2 parsers, which we CAN patch up by + // splicing a "NSFilter" stage up front ... + + // JAXP default: false + pf.setNamespaceAware(isNamespaceAware()); + + try + { + // undo rude "namespace-prefixes=false" default + pf.setFeature(FEATURE + "namespace-prefixes", true); + + return new JAXPBuilder(pf.newSAXParser().getXMLReader(), this); + } + catch (SAXException e) + { + String msg = "can't create JAXP DocumentBuilder: " + e.getMessage(); + throw new ParserConfigurationException(msg); + } + } + + /** There seems to be no useful specification for attribute names */ + public void setAttribute(String name, Object value) + throws IllegalArgumentException + { + if ("http://java.sun.com/xml/jaxp/properties/schemaLanguage".equals(name)) + { + // TODO + } + else + { + throw new IllegalArgumentException(name); + } + } + + /** There seems to be no useful specification for attribute names */ + public Object getAttribute(String name) + throws IllegalArgumentException + { + throw new IllegalArgumentException(name); + } + + public void setFeature(String name, boolean value) + throws ParserConfigurationException + { + if (name == null) + throw new NullPointerException(); + if (XMLConstants.FEATURE_SECURE_PROCESSING.equals(name)) + { + secureProcessing = true; + return; + } + throw new ParserConfigurationException(name); + } + + public boolean getFeature(String name) + throws ParserConfigurationException + { + if (XMLConstants.FEATURE_SECURE_PROCESSING.equals(name)) + return secureProcessing; + throw new ParserConfigurationException(name); + } + + static final class JAXPBuilder + extends DocumentBuilder + implements ErrorHandler + { + + private Consumer consumer; + private XMLReader producer; + private DomImpl impl; + + JAXPBuilder(XMLReader parser, JAXPFactory factory) + throws ParserConfigurationException + { + impl = new DomImpl(); + + // set up consumer side + try + { + consumer = new Consumer(); + } + catch (SAXException e) + { + throw new ParserConfigurationException(e.getMessage()); + } + + // JAXP defaults: true, noise nodes are good (bleech) + consumer.setHidingReferences(factory.isExpandEntityReferences()); + consumer.setHidingComments(factory.isIgnoringComments()); + consumer.setHidingWhitespace(factory.isIgnoringElementContentWhitespace()); + consumer.setHidingCDATA(factory.isCoalescing()); + + // set up producer side + producer = parser; + producer.setContentHandler(consumer.getContentHandler()); + producer.setDTDHandler(consumer.getDTDHandler()); + + try + { + String id; + + // if validating, report validity errors, and default + // to treating them as fatal + if (factory.isValidating ()) + { + producer.setFeature(FEATURE + "validation", true); + producer.setErrorHandler(this); + } + + // always save prefix info, maybe do namespace processing + producer.setFeature(FEATURE + "namespace-prefixes", true); + producer.setFeature(FEATURE + "namespaces", + factory.isNamespaceAware()); + + // set important handlers + id = PROPERTY + "lexical-handler"; + producer.setProperty(id, consumer.getProperty(id)); + + id = PROPERTY + "declaration-handler"; + producer.setProperty(id, consumer.getProperty(id)); + + } + catch (SAXException e) + { + throw new ParserConfigurationException(e.getMessage()); + } + } + + public Document parse(InputSource source) + throws SAXException, IOException + { + producer.parse(source); + Document doc = consumer.getDocument(); + // TODO inputEncoding + doc.setDocumentURI(source.getSystemId()); + return doc; + } + + public boolean isNamespaceAware() + { + try + { + return producer.getFeature(FEATURE + "namespaces"); + } + catch (SAXException e) + { + // "can't happen" + throw new RuntimeException(e.getMessage()); + } + } + + public boolean isValidating() + { + try + { + return producer.getFeature(FEATURE + "validation"); + } + catch (SAXException e) + { + // "can't happen" + throw new RuntimeException(e.getMessage()); + } + } + + public void setEntityResolver(EntityResolver resolver) + { + producer.setEntityResolver(resolver); + } + + public void setErrorHandler(ErrorHandler handler) + { + producer.setErrorHandler(handler); + consumer.setErrorHandler(handler); + } + + public DOMImplementation getDOMImplementation() + { + return impl; + } + + public Document newDocument() + { + return new DomDocument(); + } + + // implementation of error handler that's used when validating + public void fatalError(SAXParseException e) + throws SAXException + { + throw e; + } + + public void error(SAXParseException e) + throws SAXException + { + throw e; + } + + public void warning(SAXParseException e) + throws SAXException + { + /* ignore */ + } + + } + +} |