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Diffstat (limited to 'libjava/classpath/gnu/xml/transform/ApplyTemplatesNode.java')
| -rw-r--r-- | libjava/classpath/gnu/xml/transform/ApplyTemplatesNode.java | 219 |
1 files changed, 219 insertions, 0 deletions
diff --git a/libjava/classpath/gnu/xml/transform/ApplyTemplatesNode.java b/libjava/classpath/gnu/xml/transform/ApplyTemplatesNode.java new file mode 100644 index 000000000..6aa36954a --- /dev/null +++ b/libjava/classpath/gnu/xml/transform/ApplyTemplatesNode.java @@ -0,0 +1,219 @@ +/* ApplyTemplatesNode.java -- + Copyright (C) 2004,2006 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 gnu.java.lang.CPStringBuilder; + +import java.util.ArrayList; +import java.util.Collection; +import java.util.Collections; +import java.util.Iterator; +import java.util.LinkedList; +import java.util.List; +import javax.xml.namespace.QName; +import javax.xml.transform.TransformerException; +import org.w3c.dom.Node; +import gnu.xml.xpath.Expr; + +/** + * A template node representing the XSL <code>apply-templates</code> + * instruction. + * + * @author <a href='mailto:dog@gnu.org'>Chris Burdess</a> + */ +final class ApplyTemplatesNode + extends TemplateNode +{ + + final Expr select; + final QName mode; + final List sortKeys; + final List withParams; + final boolean isDefault; + + ApplyTemplatesNode(Expr select, QName mode, + List sortKeys, List withParams, boolean isDefault) + { + this.select = select; + this.mode = mode; + this.sortKeys = sortKeys; + this.withParams = withParams; + this.isDefault = isDefault; + } + + TemplateNode clone(Stylesheet stylesheet) + { + int len = sortKeys != null ? sortKeys.size() : 0; + List sortKeys2 = new ArrayList(len); + for (int i = 0; i < len; i++) + sortKeys2.add(((Key) sortKeys.get(i)).clone(stylesheet)); + len = withParams != null ? withParams.size() : 0; + List withParams2 = new ArrayList(len); + for (int i = 0; i < len; i++) + withParams2.add(((WithParam) withParams.get(i)).clone(stylesheet)); + TemplateNode ret = new ApplyTemplatesNode(select.clone(stylesheet), + mode, sortKeys2, withParams2, + isDefault); + 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); + if (ret != null && ret instanceof Collection) + { + if (withParams != null) + { + // compute the parameter values + LinkedList values = new LinkedList(); + for (Iterator i = withParams.iterator(); i.hasNext(); ) + { + WithParam p = (WithParam) i.next(); + Object value = p.getValue(stylesheet, mode, context, pos, len); + Object[] pair = new Object[2]; + pair[0] = p.name; + pair[1] = value; + values.add(pair); + } + // push the parameter context + stylesheet.bindings.push(Bindings.WITH_PARAM); + // set the parameters + for (Iterator i = values.iterator(); i.hasNext(); ) + { + Object[] pair = (Object[]) i.next(); + QName name = (QName) pair[0]; + Object value = pair[1]; + stylesheet.bindings.set(name, value, Bindings.WITH_PARAM); + } + } + Collection ns = (Collection) ret; + List nodes = new ArrayList(ns); + if (sortKeys != null) + { + for (Iterator i = sortKeys.iterator(); i.hasNext(); ) + { + SortKey sortKey = (SortKey) i.next(); + sortKey.init(stylesheet, mode, context, pos, len, parent, + nextSibling); + } + Collections.sort(nodes, new XSLComparator(sortKeys)); + } + else + Collections.sort(nodes, documentOrderComparator); + int l = nodes.size(); + QName effectiveMode = isDefault ? mode : this.mode; + for (int i = 0; i < l; i++) + { + Node node = (Node) nodes.get(i); + TemplateNode t = stylesheet.getTemplate(effectiveMode, node, + false); + if (t != null) + { + stylesheet.current = node; + t.apply(stylesheet, effectiveMode, node, i + 1, l, + parent, nextSibling); + } + } + if (withParams != null) + { + // pop the variable context + stylesheet.bindings.pop(Bindings.WITH_PARAM); + } + } + // apply-templates doesn't have processable 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; + if (withParams != null) + { + for (Iterator i = withParams.iterator(); i.hasNext(); ) + { + if (((WithParam) i.next()).references(var)) + return true; + } + } + if (sortKeys != null) + { + for (Iterator i = sortKeys.iterator(); i.hasNext(); ) + { + if (((SortKey) i.next()).references(var)) + return true; + } + } + return super.references(var); + } + + public String toString() + { + CPStringBuilder buf = new CPStringBuilder("apply-templates"); + buf.append('['); + boolean o = false; + if (select != null) + { + buf.append("select="); + buf.append(select); + o = true; + } + if (mode != null) + { + if (o) + { + buf.append(','); + } + buf.append("mode="); + buf.append(mode); + } + buf.append(']'); + return buf.toString(); + } + +} |