c38e914edb
2005-02-17 Andrew John Hughes <gnu_andrew@member.fsf.org> Michael Koch <konqueror@gmx.de> * gnu/java/net/protocol/http/Cookie.java, gnu/java/net/protocol/http/HTTPConnection.java, gnu/java/net/protocol/http/HTTPDateFormat.java, gnu/java/net/protocol/http/Request.java, gnu/java/nio/PipeImpl.java, gnu/java/rmi/dgc/DGCImpl.java, gnu/java/rmi/server/ConnectionRunnerPool.java, gnu/java/rmi/server/UnicastConnectionManager.java, gnu/java/security/der/DERWriter.java, gnu/java/security/pkcs/SignerInfo.java, gnu/java/security/provider/EncodedKeyFactory.java, gnu/java/security/provider/GnuDHPublicKey.java, gnu/java/security/provider/GnuDSAPrivateKey.java, gnu/java/security/provider/GnuDSAPublicKey.java, gnu/java/security/provider/PKIXCertPathValidatorImpl.java, gnu/java/security/x509/X500DistinguishedName.java, gnu/java/security/x509/X509CRL.java, gnu/java/security/x509/X509CRLEntry.java, gnu/java/security/x509/X509Certificate.java, gnu/java/security/x509/ext/AuthorityKeyIdentifier.java, gnu/java/security/x509/ext/CertificatePolicies.java, gnu/java/security/x509/ext/PolicyConstraint.java, gnu/xml/dom/Consumer.java, gnu/xml/dom/DomCharacterData.java, gnu/xml/dom/DomDocument.java, gnu/xml/dom/DomDocumentBuilder.java, gnu/xml/dom/DomIterator.java, gnu/xml/dom/DomNode.java, gnu/xml/dom/DomXPathExpression.java, gnu/xml/dom/DomXPathResult.java, gnu/xml/dom/JAXPFactory.java, gnu/xml/pipeline/CallFilter.java, gnu/xml/pipeline/DomConsumer.java, gnu/xml/pipeline/LinkFilter.java, gnu/xml/pipeline/NSFilter.java, gnu/xml/pipeline/TeeConsumer.java, gnu/xml/pipeline/ValidationConsumer.java, gnu/xml/pipeline/WellFormednessFilter.java, gnu/xml/pipeline/XIncludeFilter.java, gnu/xml/pipeline/XsltFilter.java, gnu/xml/transform/ApplyImportsNode.java, gnu/xml/transform/Bindings.java, gnu/xml/transform/DocumentFunction.java, gnu/xml/transform/FormatNumberFunction.java, gnu/xml/transform/NodeNumberNode.java, gnu/xml/transform/NumberNode.java, gnu/xml/transform/Stylesheet.java, gnu/xml/transform/SystemPropertyFunction.java, gnu/xml/transform/Template.java, gnu/xml/transform/TemplatesImpl.java, gnu/xml/transform/TransformerImpl.java, gnu/xml/transform/ValueOfNode.java, gnu/xml/transform/XSLURIResolver.java, gnu/xml/util/DoParse.java, gnu/xml/util/Resolver.java, gnu/xml/xpath/Expr.java, gnu/xml/xpath/FunctionCall.java, gnu/xml/xpath/RelationalExpr.java, gnu/xml/xpath/Selector.java, gnu/xml/xpath/XPathParser.java: Reworked import statements, fixed modifier order and some little formatting issues. Co-Authored-By: Michael Koch <konqueror@gmx.de> From-SVN: r95177
244 lines
7.0 KiB
Java
244 lines
7.0 KiB
Java
/* DocumentFunction.java --
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Copyright (C) 2004 Free Software Foundation, Inc.
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This file is part of GNU Classpath.
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GNU Classpath is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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GNU Classpath is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GNU Classpath; see the file COPYING. If not, write to the
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Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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02111-1307 USA.
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Linking this library statically or dynamically with other modules is
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making a combined work based on this library. Thus, the terms and
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conditions of the GNU General Public License cover the whole
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combination.
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As a special exception, the copyright holders of this library give you
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permission to link this library with independent modules to produce an
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executable, regardless of the license terms of these independent
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modules, and to copy and distribute the resulting executable under
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terms of your choice, provided that you also meet, for each linked
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independent module, the terms and conditions of the license of that
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module. An independent module is a module which is not derived from
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or based on this library. If you modify this library, you may extend
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this exception to your version of the library, but you are not
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obligated to do so. If you do not wish to do so, delete this
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exception statement from your version. */
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package gnu.xml.transform;
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import java.util.ArrayList;
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import java.util.Collection;
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import java.util.Collections;
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import java.util.Iterator;
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import java.util.List;
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import java.util.TreeSet;
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import javax.xml.transform.TransformerException;
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import javax.xml.transform.dom.DOMSource;
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import javax.xml.xpath.XPathFunction;
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import javax.xml.xpath.XPathFunctionException;
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import org.w3c.dom.Node;
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import gnu.xml.xpath.Constant;
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import gnu.xml.xpath.Expr;
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import gnu.xml.xpath.Function;
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import gnu.xml.xpath.IdFunction;
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/**
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* The XSLT <code>document()</code>function.
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*
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* @author <a href='mailto:dog@gnu.org'>Chris Burdess</a>
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*/
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final class DocumentFunction
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extends Expr
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implements Function, XPathFunction
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{
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final Stylesheet stylesheet;
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final Node base;
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List args;
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List values;
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DocumentFunction(Stylesheet stylesheet, Node base)
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{
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this.stylesheet = stylesheet;
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this.base = base;
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}
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public Object evaluate(List args)
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throws XPathFunctionException
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{
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values = args;
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return evaluate(null, 1, 1);
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}
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public void setArguments(List args)
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{
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this.args = args;
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}
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public Object evaluate(Node context, int pos, int len)
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{
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int arity = args.size();
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if (values == null)
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{
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values = new ArrayList(arity);
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for (int i = 0; i < arity; i++)
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{
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Expr arg = (Expr) args.get(i);
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values.add(arg.evaluate(context, pos, len));
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}
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}
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Object ret;
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switch (arity)
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{
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case 1:
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Object arg = values.get(0);
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if (arg instanceof Collection)
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{
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Collection ns = (Collection) arg;
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Collection acc = new TreeSet();
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for (Iterator i = ns.iterator(); i.hasNext(); )
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{
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Node node = (Node) i.next();
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String s = Expr.stringValue(node);
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acc.addAll(document(s, node.getBaseURI()));
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}
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ret = acc;
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}
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else
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{
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String s = Expr._string(context, arg);
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ret = document(s, base.getBaseURI());
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}
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break;
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case 2:
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Object arg1 = values.get(0);
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Object arg2 = values.get(1);
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if (!(arg2 instanceof Collection))
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{
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throw new RuntimeException("second argument is not a node-set");
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}
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Collection arg2ns = (Collection) arg2;
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String base2 = arg2ns.isEmpty() ? null :
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((Node) arg2ns.iterator().next()).getBaseURI();
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if (arg1 instanceof Collection)
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{
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Collection arg1ns = (Collection) arg1;
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Collection acc = new TreeSet();
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for (Iterator i = arg1ns.iterator(); i.hasNext(); )
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{
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Node node = (Node) i.next();
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String s = Expr.stringValue(node);
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acc.addAll(document(s, base2));
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}
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ret = acc;
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}
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else
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{
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String s = Expr._string(context, arg1);
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ret = document(s, base2);
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}
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break;
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default:
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throw new RuntimeException("invalid arity");
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}
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values = null;
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return ret;
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}
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/**
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* The XSL <code>document</code> function.
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* @see XSLT 12.1
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* @param uri the URI from which to retrieve nodes
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* @param base the base URI for relative URIs
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*/
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Collection document(String uri, String base)
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{
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if ("".equals(uri) || uri == null)
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{
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uri = this.base.getBaseURI();
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}
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// Get fragment
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Expr fragment = null;
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int hi = uri.indexOf('#');
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if (hi != -1)
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{
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String f = uri.substring(hi + 1);
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uri = uri.substring(0, hi);
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// TODO handle xpointer() here
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// this only handles IDs
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fragment = new IdFunction(new Constant(f));
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}
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// Get document source
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try
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{
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DOMSource source;
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XSLURIResolver resolver = stylesheet.factory.resolver;
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synchronized (resolver)
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{
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if (stylesheet.transformer != null)
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{
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resolver.setUserResolver(stylesheet.transformer.uriResolver);
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resolver.setUserListener(stylesheet.transformer.errorListener);
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}
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source = resolver.resolveDOM(null, base, uri);
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}
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Node node = source.getNode();
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if (fragment == null)
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{
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return Collections.singleton(node);
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}
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else
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{
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Object ret = fragment.evaluate(node, 1, 1);
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if (!(ret instanceof Collection))
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{
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// XXX Report error?
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return Collections.EMPTY_SET;
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}
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return (Collection) ret;
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}
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}
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catch (TransformerException e)
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{
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String msg = "can't open " + uri;
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if (base != null)
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{
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msg += " with base " + base;
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}
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throw new RuntimeException(msg);
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}
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}
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public Expr clone(Object context)
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{
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Stylesheet s = stylesheet;
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if (context instanceof Stylesheet)
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{
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s = (Stylesheet) context;
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}
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DocumentFunction f = new DocumentFunction(s, base);
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int len = args.size();
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List args2 = new ArrayList(len);
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for (int i = 0; i < len; i++)
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{
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args2.add(((Expr) args.get(i)).clone(context));
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}
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f.setArguments(args2);
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return f;
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}
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}
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