/*
* eXist Open Source Native XML Database
* Copyright (C) 2008-2010 The eXist Project
* http://exist-db.org
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program 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 Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*
* $Id$
*/
package org.exist.xslt.expression;
import java.util.HashMap;
import java.util.Map;
import java.util.Map.Entry;
import org.exist.dom.QName;
import org.exist.interpreter.ContextAtExist;
import org.exist.xquery.AnalyzeContextInfo;
import org.exist.xquery.Expression;
import org.exist.xquery.LocalVariable;
import org.exist.xquery.TextConstructor;
import org.exist.xquery.XPathException;
import org.exist.xquery.util.ExpressionDumper;
import org.exist.xquery.value.Item;
import org.exist.xquery.value.Sequence;
import org.exist.xslt.ErrorCodes;
import org.exist.xslt.XSLContext;
import org.exist.xslt.XSLExceptions;
import org.exist.xslt.XSLStylesheet;
import org.w3c.dom.Attr;
/**
* <!-- Category: instruction -->
* <xsl:call-template
* name = qname>
* <!-- Content: xsl:with-param* -->
* </xsl:call-template>
*
* @author <a href="mailto:shabanovd@gmail.com">Dmitriy Shabanov</a>
*
*/
public class CallTemplate extends SimpleConstructor {
private QName name = null;
private Map<String, WithParam> params = new HashMap<String, WithParam>();
public CallTemplate(XSLContext context) {
super(context);
}
public void setToDefaults() {
name = null;
}
public void prepareAttribute(ContextAtExist context, Attr attr) throws XPathException {
String attr_name = attr.getNodeName();
if (attr_name.equals(NAME)) {
name = new QName(attr.getValue());
} else if (attr_name.equals(XML_SPACE)) {
;//TODO: code
} else {
//XXX: is it correct error code?
compileError(ErrorCodes.XTSE0090, "attribute '"+attr_name+"' not allowed");
}
}
public void analyze(AnalyzeContextInfo contextInfo) throws XPathException {
super.analyze(contextInfo);
for (Expression expr : steps) {
if (expr instanceof WithParam) {
WithParam param = (WithParam) expr;
QName name = param.getName();
String key = name.getNamespaceURI() + name.getLocalName();
if (params.containsKey(key))
compileError(XSLExceptions.ERR_XTSE0670);
params.put(key, param);
} else if (expr instanceof TextConstructor) {
;//ignore text elements
} else {
throw new XPathException("not permited element '"+expr+"'."); //TODO: error?
}
}
}
public Sequence eval(Sequence contextSequence, Item contextItem) throws XPathException {
// System.out.println("enter "+toString());//+" : contextItem = "+contextItem.toString());//TODO: remove
// Save the local variable stack
LocalVariable mark = context.markLocalVariables(false);
Sequence value = null;
for (Entry<String, WithParam> entry : params.entrySet()) {
value = entry.getValue().eval(contextSequence, contextItem);
// Declare the iteration variable
LocalVariable var = new LocalVariable(entry.getValue().getName());
// var.setSequenceType(sequenceType);
context.declareVariableBinding(var);
var.setValue(value);
}
XSLStylesheet xslt = getXSLContext().getXSLStylesheet();
Sequence result = xslt.template(name, contextSequence, contextItem);
context.popLocalVariables(mark);
return result;
}
/* (non-Javadoc)
* @see org.exist.xquery.Expression#dump(org.exist.xquery.util.ExpressionDumper)
*/
public void dump(ExpressionDumper dumper) {
dumper.display("<xsl:call-template");
if (name != null)
dumper.display(" name = "+name);
dumper.display("> ");
super.dump(dumper);
dumper.display("</xsl:call-template>");
}
public String toString() {
StringBuilder result = new StringBuilder();
result.append("<xsl:call-template");
if (name != null)
result.append(" name = "+name.toString());
result.append("> ");
result.append(super.toString());
result.append("</xsl:call-template>");
return result.toString();
}
}