org.apache.xalan.templates.ElemApplyImport Maven / Gradle / Ivy

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Tool to convert CSV and XLS to XML, to transform XML and to convert XML to CSV, HTML, other text files, PDF etc., useful as command line tool and integrated in other projects.

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/*
 * 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: ElemApplyImport.java 468643 2006-10-28 06:56:03Z minchau $
 */
package org.apache.xalan.templates;

import javax.xml.transform.TransformerException;

import org.apache.xalan.res.XSLTErrorResources;
import org.apache.xalan.transformer.TransformerImpl;
import org.apache.xml.dtm.DTM;

/**
 * Implement xsl:apply-imports.
 *  * 
 * 
 * @see apply-imports in XSLT Specification
 * @xsl.usage advanced
 */
public class ElemApplyImport extends ElemTemplateElement
{
    static final long serialVersionUID = 3764728663373024038L;

  /**
   * Get an int constant identifying the type of element.
   * @see org.apache.xalan.templates.Constants
   *
   * @return Token ID for xsl:apply-imports element types
   */
  public int getXSLToken()
  {
    return Constants.ELEMNAME_APPLY_IMPORTS;
  }

  /**
   * Return the node name.
   *
   * @return Element name
   */
  public String getNodeName()
  {
    return Constants.ELEMNAME_APPLY_IMPORTS_STRING;
  }

  /**
   * Execute the xsl:apply-imports transformation.
   *
   * @param transformer non-null reference to the the current transform-time state.
   *
   * @throws TransformerException
   */
  public void execute(
          TransformerImpl transformer)
            throws TransformerException
  {

    if (transformer.currentTemplateRuleIsNull())
    {
      transformer.getMsgMgr().error(this,
        XSLTErrorResources.ER_NO_APPLY_IMPORT_IN_FOR_EACH);  //"xsl:apply-imports not allowed in a xsl:for-each");
    }

    if (transformer.getDebug())
      transformer.getTraceManager().fireTraceEvent(this);

    int sourceNode = transformer.getXPathContext().getCurrentNode();
    if (DTM.NULL != sourceNode)
    {
      // supply the current templated (matched, not named)        
      ElemTemplate matchTemplate = transformer.getMatchedTemplate();
      transformer.applyTemplateToNode(this, matchTemplate, sourceNode);
    }
    else  // if(null == sourceNode)
    {
      transformer.getMsgMgr().error(this,
        XSLTErrorResources.ER_NULL_SOURCENODE_APPLYIMPORTS);  //"sourceNode is null in xsl:apply-imports!");
    }
    if (transformer.getDebug())
      transformer.getTraceManager().fireTraceEndEvent(this);
  }

  /**
   * Add a child to the child list.
   * 
   *
   * @param newChild New element to append to this element's children list
   *
   * @return null, xsl:apply-Imports cannot have children 
   */
  public ElemTemplateElement appendChild(ElemTemplateElement newChild)
  {

    error(XSLTErrorResources.ER_CANNOT_ADD,
          new Object[]{ newChild.getNodeName(),
                        this.getNodeName() });  //"Can not add " +((ElemTemplateElement)newChild).m_elemName +

    //" to " + this.m_elemName);
    return null;
  }
}