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Diffstat (limited to 'libjava/classpath/gnu/xml/transform/CopyOfNode.java')
| -rw-r--r-- | libjava/classpath/gnu/xml/transform/CopyOfNode.java | 192 |
1 files changed, 192 insertions, 0 deletions
diff --git a/libjava/classpath/gnu/xml/transform/CopyOfNode.java b/libjava/classpath/gnu/xml/transform/CopyOfNode.java new file mode 100644 index 00000000000..a43e3ba841e --- /dev/null +++ b/libjava/classpath/gnu/xml/transform/CopyOfNode.java @@ -0,0 +1,192 @@ +/* CopyOfNode.java -- + Copyright (C) 2004 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.transform; + +import java.util.ArrayList; +import java.util.Collection; +import java.util.Collections; +import java.util.Iterator; +import java.util.List; +import javax.xml.namespace.QName; +import javax.xml.transform.TransformerException; +import org.w3c.dom.Document; +import org.w3c.dom.NamedNodeMap; +import org.w3c.dom.Node; +import org.w3c.dom.Text; +import gnu.xml.xpath.Expr; + +/** + * A template node representing an XSLT <code>copy-of</code> instruction. + * + * @author <a href='mailto:dog@gnu.org'>Chris Burdess</a> + */ +final class CopyOfNode + extends TemplateNode +{ + + final Expr select; + + CopyOfNode(Expr select) + { + this.select = select; + } + + TemplateNode clone(Stylesheet stylesheet) + { + TemplateNode ret = new CopyOfNode(select.clone(stylesheet)); + if (children != null) + { + ret.children = children.clone(stylesheet); + } + if (next != null) + { + ret.next = next.clone(stylesheet); + } + return ret; + } + + void doApply(Stylesheet stylesheet, QName mode, + Node context, int pos, int len, + Node parent, Node nextSibling) + throws TransformerException + { + Object ret = select.evaluate(context, pos, len); + Document doc = (parent instanceof Document) ? (Document) parent : + parent.getOwnerDocument(); + if (ret instanceof Collection) + { + Collection ns = (Collection) ret; + List list = new ArrayList(ns); + Collections.sort(list, documentOrderComparator); + for (Iterator i = list.iterator(); i.hasNext(); ) + { + Node src = (Node) i.next(); + short nodeType = src.getNodeType(); + if (nodeType == Node.DOCUMENT_NODE) + { + // Use document element + src = ((Document) src).getDocumentElement(); + if (src == null) + { + continue; + } + nodeType = Node.ELEMENT_NODE; + } + else if (nodeType == Node.ATTRIBUTE_NODE) + { + if (parent.getFirstChild() != null) + { + // Ignore attempt to add attribute after children + continue; + } + } + if (parent.getNodeType() == Node.ATTRIBUTE_NODE && + nodeType != Node.TEXT_NODE && + nodeType != Node.ENTITY_REFERENCE_NODE) + { + // Ignore + continue; + } + Node node = src.cloneNode(true); + node = doc.adoptNode(node); + if (nodeType == Node.ATTRIBUTE_NODE) + { + NamedNodeMap attrs = parent.getAttributes(); + if (attrs != null) + { + attrs.setNamedItemNS(node); + } + } + else + { + if (nextSibling != null) + { + parent.insertBefore(node, nextSibling); + } + else + { + parent.appendChild(node); + } + } + } + } + else + { + String value = Expr._string(context, ret); + if (value != null && value.length() > 0) + { + Text textNode = doc.createTextNode(value); + if (nextSibling != null) + { + parent.insertBefore(textNode, nextSibling); + } + else + { + parent.appendChild(textNode); + } + } + } + // copy-of doesn't process children + if (next != null) + { + next.apply(stylesheet, mode, + context, pos, len, + parent, nextSibling); + } + } + + public boolean references(QName var) + { + if (select != null && select.references(var)) + { + return true; + } + return super.references(var); + } + + public String toString() + { + StringBuffer buf = new StringBuffer(getClass().getName()); + buf.append('['); + buf.append("select="); + buf.append(select); + buf.append(']'); + return buf.toString(); + } + +} |
