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authorupstream source tree <ports@midipix.org>2015-03-15 20:14:05 -0400
committerupstream source tree <ports@midipix.org>2015-03-15 20:14:05 -0400
commit554fd8c5195424bdbcabf5de30fdc183aba391bd (patch)
tree976dc5ab7fddf506dadce60ae936f43f58787092 /libjava/classpath/gnu/xml/dom/JAXPFactory.java
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+/* 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 */
+ }
+
+ }
+
+}