/*
* The Apache Software License, Version 1.1
*
*
* Copyright (c) 1999 The Apache Software Foundation. All rights
* reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* 3. The end-user documentation included with the redistribution,
* if any, must include the following acknowledgment:
* "This product includes software developed by the
* Apache Software Foundation (http://www.apache.org/)."
* Alternately, this acknowledgment may appear in the software itself,
* if and wherever such third-party acknowledgments normally appear.
*
* 4. The names "Xalan" and "Apache Software Foundation" must
* not be used to endorse or promote products derived from this
* software without prior written permission. For written
* permission, please contact apache@apache.org.
*
* 5. Products derived from this software may not be called "Apache",
* nor may "Apache" appear in their name, without prior written
* permission of the Apache Software Foundation.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
* ====================================================================
*
* This software consists of voluntary contributions made by many
* individuals on behalf of the Apache Software Foundation and was
* originally based on software copyright (c) 1999, Lotus
* Development Corporation., http://www.lotus.com. For more
* information on the Apache Software Foundation, please see
* <http://www.apache.org/>.
*/
package org.apache.xalan.templates;
import java.util.Vector;
import org.apache.xml.utils.QName;
import org.apache.xml.utils.NameSpace;
import org.apache.xml.utils.StringToStringTable;
import org.apache.xml.utils.StringVector;
import org.apache.xalan.extensions.ExtensionHandler;
import org.apache.xalan.extensions.ExtensionHandlerGeneral;
import org.apache.xalan.extensions.ExtensionsTable;
import org.apache.xalan.transformer.TransformerImpl;
import javax.xml.transform.TransformerException;
import org.apache.xpath.XPathContext;
import org.apache.xalan.res.XSLTErrorResources;
/**
* <meta name="usage" content="internal"/>
* Implement the declaration of an extension element
*/
public class ElemExtensionDecl extends ElemTemplateElement
{
/**
* Constructor ElemExtensionDecl
*
*/
public ElemExtensionDecl()
{
// System.out.println("ElemExtensionDecl ctor");
}
/** Prefix string for this extension element.
* @serial */
private String m_prefix = null;
/**
* Set the prefix for this extension element
*
*
* @param v Prefix to set for this extension element
*/
public void setPrefix(String v)
{
m_prefix = v;
}
/**
* Set the prefix for this extension element
*
*
* @return Prefix for this extension element
*/
public String getPrefix()
{
return m_prefix;
}
/** StringVector holding the names of functions defined in this extension.
* @serial */
private StringVector m_functions = new StringVector();
/**
* Set the names of functions defined in this extension
*
*
* @param v StringVector holding the names of functions defined in this extension
*/
public void setFunctions(StringVector v)
{
m_functions = v;
}
/**
* Get the names of functions defined in this extension
*
*
* @return StringVector holding the names of functions defined in this extension
*/
public StringVector getFunctions()
{
return m_functions;
}
/**
* Get a function at a given index in this extension element
*
*
* @param i Index of function to get
*
* @return Name of Function at given index
*
* @throws ArrayIndexOutOfBoundsException
*/
public String getFunction(int i) throws ArrayIndexOutOfBoundsException
{
if (null == m_functions)
throw new ArrayIndexOutOfBoundsException();
return (String) m_functions.elementAt(i);
}
/**
* Get count of functions defined in this extension element
*
*
* @return count of functions defined in this extension element
*/
public int getFunctionCount()
{
return (null != m_functions) ? m_functions.size() : 0;
}
/** StringVector of elements defined in this extension.
* @serial */
private StringVector m_elements = null;
/**
* Set StringVector of elements for this extension
*
*
* @param v StringVector of elements to set
*/
public void setElements(StringVector v)
{
m_elements = v;
}
/**
* Get StringVector of elements defined for this extension
*
*
* @return StringVector of elements defined for this extension
*/
public StringVector getElements()
{
return m_elements;
}
/**
* Get the element at the given index
*
*
* @param i Index of element to get
*
* @return The element at the given index
*
* @throws ArrayIndexOutOfBoundsException
*/
public String getElement(int i) throws ArrayIndexOutOfBoundsException
{
if (null == m_elements)
throw new ArrayIndexOutOfBoundsException();
return (String) m_elements.elementAt(i);
}
/**
* Return the count of elements defined for this extension element
*
*
* @return the count of elements defined for this extension element
*/
public int getElementCount()
{
return (null != m_elements) ? m_elements.size() : 0;
}
/**
* Get an int constant identifying the type of element.
* @see org.apache.xalan.templates.Constants
*
* @return The token ID for this element
*/
public int getXSLToken()
{
return Constants.ELEMNAME_EXTENSIONDECL;
}
/**
* This function will be called on top-level elements
* only, just before the transform begins.
*
* @param transformer The XSLT TransformerFactory.
*
* @throws TransformerException
*/
public void runtimeInit(TransformerImpl transformer) throws TransformerException
{
String lang = null;
String srcURL = null;
String scriptSrc = null;
String prefix = getPrefix();
String declNamespace = getNamespaceForPrefix(prefix);
if (null == declNamespace)
throw new TransformerException("Prefix " + prefix
+ " does not have a corresponding "
+ "namespace declaration");
for (ElemTemplateElement child = getFirstChildElem(); child != null;
child = child.getNextSiblingElem())
{
if (Constants.ELEMNAME_EXTENSIONSCRIPT == child.getXSLToken())
{
ElemExtensionScript sdecl = (ElemExtensionScript) child;
lang = sdecl.getLang();
srcURL = sdecl.getSrc();
ElemTemplateElement childOfSDecl = sdecl.getFirstChildElem();
if (null != childOfSDecl)
{
if (Constants.ELEMNAME_TEXTLITERALRESULT
== childOfSDecl.getXSLToken())
{
ElemTextLiteral tl = (ElemTextLiteral) childOfSDecl;
char[] chars = tl.getChars();
scriptSrc = new String(chars);
if (scriptSrc.trim().length() == 0)
scriptSrc = null;
}
}
}
}
if (null == lang)
lang = "javaclass";
if (lang.equals("javaclass") && (scriptSrc != null))
throw new TransformerException("Element content not allowed for lang=javaclass "
+ scriptSrc);
XPathContext liaison = ((XPathContext) transformer.getXPathContext());
ExtensionsTable etable = liaison.getExtensionsTable();
ExtensionHandler nsh = etable.get(declNamespace);
// If we have no prior ExtensionHandler for this namespace, we need to
// create one.
// If the script element is for javaclass, this is our special compiled java.
// Element content is not supported for this so we throw an exception if
// it is provided. Otherwise, we look up the srcURL to see if we already have
// an ExtensionHandler.
if (null == nsh)
{
if (lang.equals("javaclass"))
{
if (null == srcURL)
{
nsh = etable.makeJavaNamespace(declNamespace);
}
else
{
nsh = etable.get(srcURL);
if (null == nsh)
{
nsh = etable.makeJavaNamespace(srcURL);
}
}
}
else // not java
{
nsh = new ExtensionHandlerGeneral(declNamespace, this.m_elements,
this.m_functions, lang, srcURL,
scriptSrc);
// System.out.println("Adding NS Handler: declNamespace = "+
// declNamespace+", lang = "+lang+", srcURL = "+
// srcURL+", scriptSrc="+scriptSrc);
}
etable.addExtensionNamespace(declNamespace, nsh);
}
}
}