/*
* Copyright (c) 1998-2011 Caucho Technology -- all rights reserved
*
* This file is part of Resin(R) Open Source
*
* Each copy or derived work must preserve the copyright notice and this
* notice unmodified.
*
* Resin Open Source 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 of the License, or
* (at your option) any later version.
*
* Resin Open Source 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, or any warranty
* of NON-INFRINGEMENT. See the GNU General Public License for more
* details.
*
* You should have received a copy of the GNU General Public License
* along with Resin Open Source; if not, write to the
* Free SoftwareFoundation, Inc.
* 59 Temple Place, Suite 330
* Boston, MA 02111-1307 USA
*
* @author Scott Ferguson
*/
package com.caucho.xsl.java;
import com.caucho.java.JavaWriter;
import com.caucho.xml.QName;
import com.caucho.xpath.pattern.AbstractPattern;
import com.caucho.xsl.Sort;
import com.caucho.xsl.XslParseException;
import java.util.ArrayList;
/**
* Represents any XSL node from the stylesheet.
*/
public class XslApplyTemplates extends XslNode {
private String _select;
private String _mode;
private ArrayList<XslSort> _sorts = new ArrayList<XslSort>();
/**
* Returns the tag name.
*/
public String getTagName()
{
return "xsl:apply-templates";
}
/**
* Adds an attribute.
*/
public void addAttribute(QName name, String value)
throws XslParseException
{
if (name.getName().equals("select")) {
_select = value;
}
else if (name.getName().equals("mode")) {
_mode = value;
}
else
super.addAttribute(name, value);
}
/**
* Ends the attributes.
*/
public void endAttributes()
throws XslParseException
{
}
/**
* Adds a child node.
*/
public void addChild(XslNode node)
throws XslParseException
{
if (node instanceof XslSort) {
_sorts.add((XslSort) node);
}
else
super.addChild(node);
}
/**
* Generates the code for the tag
*
* @param out the output writer for the generated java.
*/
public void generate(JavaWriter out)
throws Exception
{
AbstractPattern selectPattern = null;
if (_select != null) {
selectPattern = parseSelect(_select);
}
Sort []sort = null;
if (_sorts.size() > 0) {
sort = new Sort[_sorts.size()];
for (int i = 0; i < _sorts.size(); i++)
sort[i] = _sorts.get(i).generateSort();
}
if (sort != null && selectPattern == null) {
// selectPattern = parseSelect("*", node);
selectPattern = parseSelect("*");
}
pushCall(out);
generateChildren(out);
printApplyTemplates(out, selectPattern, _mode, sort);
popCall(out);
}
/**
* Prints code for xsl:apply-templates
*
* @param select the select pattern
* @param mode the template mode
* @param sort the sort expressions
*/
private void printApplyTemplates(JavaWriter out,
AbstractPattern select,
String mode,
Sort []sort)
throws Exception
{
int min = 0;
int max = Integer.MAX_VALUE;
String applyName = "applyNode" + _gen.getModeName(mode);
String env = "_xsl_arg" + _gen.getCallDepth();
if (select == null && sort == null) {
out.println("for (Node _xsl_node = node.getFirstChild();");
out.println(" _xsl_node != null;");
out.println(" _xsl_node = _xsl_node.getNextSibling()) {");
out.println(" " + env + ".setSelect(node, null);");
out.println(" " + env + ".setCurrentNode(_xsl_node);");
out.println(" " + applyName + "(out, _xsl_node, " + env + ", " +
min + ", " + max + ");");
out.println("}");
}
else if (sort == null) {
int oldSelectDepth = _gen.getSelectDepth();
String name = printSelectBegin(out, select, false, null);
out.println(env + ".setSelect(node, _select_patterns[" +
_gen.addSelect(select) + "]);");
out.println(env + ".setCurrentNode(" + name + ");");
out.println(applyName + "(out, " + name + ", " + env + ", " +
min + ", " + max + ");");
for (; _gen.getSelectDepth() > oldSelectDepth; _gen.popSelectDepth()) {
out.popDepth();
out.println("}");
}
}
else {
int sortIndex = _gen.addSort(sort);
out.println("{");
out.pushDepth();
out.println("ArrayList _xsl_list = xslSort(node, env" +
", _select_patterns[" + _gen.addSelect(select) + "]" +
", _xsl_sorts[" + sortIndex + "]);");
out.println(env + ".setContextSize(_xsl_list.size());");
out.println("for (int _xsl_i = 0; _xsl_i < _xsl_list.size(); _xsl_i++) {");
out.println(" " + env + ".setContextPosition(_xsl_i + 1);");
out.println(" " + applyName + "(out, (Node) _xsl_list.get(_xsl_i)" +
", " + env + ", " + min + ", " + max + ");");
out.println("}");
out.popDepth();
out.println("}");
}
}
protected void popScope(JavaWriter out)
throws Exception
{
}
}