| /* 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 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() |
| { |
| StringBuffer buf = new StringBuffer("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(); |
| } |
| |
| } |