apache-xml/src/main/java/org/apache/xalan/templates/ElemExtensionDecl.java - platform/libcore - Git at Google

 /*
  * Licensed to the Apache Software Foundation (ASF) under one
  * or more contributor license agreements. See the NOTICE file
  * distributed with this work for additional information
  * regarding copyright ownership. The ASF licenses this file
  * to you under the Apache License, Version 2.0 (the  "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
  *
  *     http://www.apache.org/licenses/LICENSE-2.0
  *
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
 /*
  * $Id: ElemExtensionDecl.java 468643 2006-10-28 06:56:03Z minchau $
  */
 package org.apache.xalan.templates;

 import javax.xml.transform.TransformerException;

 import org.apache.xalan.extensions.ExtensionNamespaceSupport;
 import org.apache.xalan.extensions.ExtensionNamespacesManager;
 import org.apache.xalan.res.XSLMessages;
 import org.apache.xalan.res.XSLTErrorResources;
 import org.apache.xalan.transformer.TransformerImpl;
 import org.apache.xml.utils.StringVector;

 /**
  * Implement the declaration of an extension element
  * @xsl.usage internal
  */
 public class ElemExtensionDecl extends ElemTemplateElement
 {
     static final long serialVersionUID = -4692738885172766789L;

   /**
    * 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;
   }

   /**
    * Get 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;
   }

   public void compose(StylesheetRoot sroot) throws TransformerException
   {
     super.compose(sroot);
     String prefix = getPrefix();
     String declNamespace = getNamespaceForPrefix(prefix);
     String lang = null;
     String srcURL = null;
     String scriptSrc = null;
     if (null == declNamespace)
       throw new TransformerException(XSLMessages.createMessage(XSLTErrorResources.ER_NO_NAMESPACE_DECL, new Object[]{prefix}));
       //"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(XSLMessages.createMessage(XSLTErrorResources.ER_ELEM_CONTENT_NOT_ALLOWED, new Object[]{scriptSrc}));
         //"Element content not allowed for lang=javaclass " + scriptSrc);

     // Register the extension namespace if it has not already been registered.
     ExtensionNamespaceSupport extNsSpt = null;
     ExtensionNamespacesManager extNsMgr = sroot.getExtensionNamespacesManager();
     if (extNsMgr.namespaceIndex(declNamespace,
                                 extNsMgr.getExtensions()) == -1)
     {
       if (lang.equals("javaclass"))
       {
         if (null == srcURL)
         {
            extNsSpt = extNsMgr.defineJavaNamespace(declNamespace);
         }
         else if (extNsMgr.namespaceIndex(srcURL,
                                          extNsMgr.getExtensions()) == -1)
         {
           extNsSpt = extNsMgr.defineJavaNamespace(declNamespace, srcURL);
         }
       }
       else  // not java
       {
         String handler = "org.apache.xalan.extensions.ExtensionHandlerGeneral";
         Object [] args = {declNamespace, this.m_elements, this.m_functions,
                           lang, srcURL, scriptSrc, getSystemId()};
         extNsSpt = new ExtensionNamespaceSupport(declNamespace, handler, args);
       }
     }
     if (extNsSpt != null)
       extNsMgr.registerExtension(extNsSpt);
   }


   /**
    * 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
   {
 /*    //System.out.println("ElemExtensionDecl.runtimeInit()");
     String lang = null;
     String srcURL = null;
     String scriptSrc = null;
     String prefix = getPrefix();
     String declNamespace = getNamespaceForPrefix(prefix);

     if (null == declNamespace)
       throw new TransformerException(XSLMessages.createMessage(XSLTErrorResources.ER_NO_NAMESPACE_DECL, new Object[]{prefix}));
       //"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(XSLMessages.createMessage(XSLTErrorResources.ER_ELEM_CONTENT_NOT_ALLOWED, new Object[]{scriptSrc}));
       //"Element content not allowed for lang=javaclass " + scriptSrc);

     // Instantiate a handler for this extension namespace.
     ExtensionsTable etable = transformer.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, getSystemId());

         // System.out.println("Adding NS Handler: declNamespace = "+
         //                   declNamespace+", lang = "+lang+", srcURL = "+
         //                   srcURL+", scriptSrc="+scriptSrc);
       }

       etable.addExtensionNamespace(declNamespace, nsh);
     }*/
   }
 }
	/*
	* Licensed to the Apache Software Foundation (ASF) under one
	* or more contributor license agreements. See the NOTICE file
	* distributed with this work for additional information
	* regarding copyright ownership. The ASF licenses this file
	* to you under the Apache License, Version 2.0 (the "License");
	* you may not use this file except in compliance with the License.
	* You may obtain a copy of the License at
	*
	* http://www.apache.org/licenses/LICENSE-2.0
	*
	* Unless required by applicable law or agreed to in writing, software
	* distributed under the License is distributed on an "AS IS" BASIS,
	* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
	* See the License for the specific language governing permissions and
	* limitations under the License.
	*/
	/*
	* $Id: ElemExtensionDecl.java 468643 2006-10-28 06:56:03Z minchau $
	*/
	package org.apache.xalan.templates;

	import javax.xml.transform.TransformerException;

	import org.apache.xalan.extensions.ExtensionNamespaceSupport;
	import org.apache.xalan.extensions.ExtensionNamespacesManager;
	import org.apache.xalan.res.XSLMessages;
	import org.apache.xalan.res.XSLTErrorResources;
	import org.apache.xalan.transformer.TransformerImpl;
	import org.apache.xml.utils.StringVector;

	/**
	* Implement the declaration of an extension element
	* @xsl.usage internal
	*/
	public class ElemExtensionDecl extends ElemTemplateElement
	{
	static final long serialVersionUID = -4692738885172766789L;

	/**
	* 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;
	}

	/**
	* Get 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;
	}

	public void compose(StylesheetRoot sroot) throws TransformerException
	{
	super.compose(sroot);
	String prefix = getPrefix();
	String declNamespace = getNamespaceForPrefix(prefix);
	String lang = null;
	String srcURL = null;
	String scriptSrc = null;
	if (null == declNamespace)
	throw new TransformerException(XSLMessages.createMessage(XSLTErrorResources.ER_NO_NAMESPACE_DECL, new Object[]{prefix}));
	//"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(XSLMessages.createMessage(XSLTErrorResources.ER_ELEM_CONTENT_NOT_ALLOWED, new Object[]{scriptSrc}));
	//"Element content not allowed for lang=javaclass " + scriptSrc);

	// Register the extension namespace if it has not already been registered.
	ExtensionNamespaceSupport extNsSpt = null;
	ExtensionNamespacesManager extNsMgr = sroot.getExtensionNamespacesManager();
	if (extNsMgr.namespaceIndex(declNamespace,
	extNsMgr.getExtensions()) == -1)
	{
	if (lang.equals("javaclass"))
	{
	if (null == srcURL)
	{
	extNsSpt = extNsMgr.defineJavaNamespace(declNamespace);
	}
	else if (extNsMgr.namespaceIndex(srcURL,
	extNsMgr.getExtensions()) == -1)
	{
	extNsSpt = extNsMgr.defineJavaNamespace(declNamespace, srcURL);
	}
	}
	else // not java
	{
	String handler = "org.apache.xalan.extensions.ExtensionHandlerGeneral";
	Object [] args = {declNamespace, this.m_elements, this.m_functions,
	lang, srcURL, scriptSrc, getSystemId()};
	extNsSpt = new ExtensionNamespaceSupport(declNamespace, handler, args);
	}
	}
	if (extNsSpt != null)
	extNsMgr.registerExtension(extNsSpt);
	}


	/**
	* 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
	{
	/* //System.out.println("ElemExtensionDecl.runtimeInit()");
	String lang = null;
	String srcURL = null;
	String scriptSrc = null;
	String prefix = getPrefix();
	String declNamespace = getNamespaceForPrefix(prefix);

	if (null == declNamespace)
	throw new TransformerException(XSLMessages.createMessage(XSLTErrorResources.ER_NO_NAMESPACE_DECL, new Object[]{prefix}));
	//"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(XSLMessages.createMessage(XSLTErrorResources.ER_ELEM_CONTENT_NOT_ALLOWED, new Object[]{scriptSrc}));
	//"Element content not allowed for lang=javaclass " + scriptSrc);

	// Instantiate a handler for this extension namespace.
	ExtensionsTable etable = transformer.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, getSystemId());

	// System.out.println("Adding NS Handler: declNamespace = "+
	// declNamespace+", lang = "+lang+", srcURL = "+
	// srcURL+", scriptSrc="+scriptSrc);
	}

	etable.addExtensionNamespace(declNamespace, nsh);
	}*/
	}
	}