| /* |
| * 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: ElemChoose.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.xpath.XPathContext; |
| import org.apache.xpath.objects.XObject; |
| |
| /** |
| * Implement xsl:choose. |
| * <pre> |
| * <!ELEMENT xsl:choose (xsl:when+, xsl:otherwise?)> |
| * <!ATTLIST xsl:choose %space-att;> |
| * </pre> |
| * @see <a href="http://www.w3.org/TR/xslt#section-Conditional-Processing-with-xsl:choose">XXX in XSLT Specification</a> |
| * @xsl.usage advanced |
| */ |
| public class ElemChoose extends ElemTemplateElement |
| { |
| static final long serialVersionUID = -3070117361903102033L; |
| |
| /** |
| * 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_CHOOSE; |
| } |
| |
| /** |
| * Return the node name. |
| * |
| * @return The element's name |
| */ |
| public String getNodeName() |
| { |
| return Constants.ELEMNAME_CHOOSE_STRING; |
| } |
| |
| /** |
| * Constructor ElemChoose |
| * |
| */ |
| public ElemChoose(){} |
| |
| /** |
| * Execute the xsl:choose transformation. |
| * |
| * |
| * @param transformer non-null reference to the the current transform-time state. |
| * |
| * @throws TransformerException |
| */ |
| public void execute(TransformerImpl transformer) throws TransformerException |
| { |
| |
| boolean found = false; |
| |
| for (ElemTemplateElement childElem = getFirstChildElem(); |
| childElem != null; childElem = childElem.getNextSiblingElem()) |
| { |
| int type = childElem.getXSLToken(); |
| |
| if (Constants.ELEMNAME_WHEN == type) |
| { |
| found = true; |
| |
| ElemWhen when = (ElemWhen) childElem; |
| |
| // must be xsl:when |
| XPathContext xctxt = transformer.getXPathContext(); |
| int sourceNode = xctxt.getCurrentNode(); |
| |
| // System.err.println("\""+when.getTest().getPatternString()+"\""); |
| |
| // if(when.getTest().getPatternString().equals("COLLECTION/icuser/ictimezone/LITERAL='GMT +13:00 Pacific/Tongatapu'")) |
| // System.err.println("Found COLLECTION/icuser/ictimezone/LITERAL"); |
| |
| if (when.getTest().bool(xctxt, sourceNode, when)) { |
| transformer.executeChildTemplates(when, true); |
| |
| return; |
| } |
| } |
| else if (Constants.ELEMNAME_OTHERWISE == type) |
| { |
| found = true; |
| |
| // xsl:otherwise |
| transformer.executeChildTemplates(childElem, true); |
| |
| return; |
| } |
| } |
| |
| if (!found) |
| transformer.getMsgMgr().error( |
| this, XSLTErrorResources.ER_CHOOSE_REQUIRES_WHEN); |
| } |
| |
| /** |
| * Add a child to the child list. |
| * |
| * @param newChild Child to add to this node's child list |
| * |
| * @return The child that was just added to the child list |
| * |
| * @throws DOMException |
| */ |
| public ElemTemplateElement appendChild(ElemTemplateElement newChild) |
| { |
| |
| int type = ((ElemTemplateElement) newChild).getXSLToken(); |
| |
| switch (type) |
| { |
| case Constants.ELEMNAME_WHEN : |
| case Constants.ELEMNAME_OTHERWISE : |
| |
| // TODO: Positional checking |
| break; |
| default : |
| error(XSLTErrorResources.ER_CANNOT_ADD, |
| new Object[]{ newChild.getNodeName(), |
| this.getNodeName() }); //"Can not add " +((ElemTemplateElement)newChild).m_elemName + |
| |
| //" to " + this.m_elemName); |
| } |
| |
| return super.appendChild(newChild); |
| } |
| |
| /** |
| * Tell if this element can accept variable declarations. |
| * @return true if the element can accept and process variable declarations. |
| */ |
| public boolean canAcceptVariables() |
| { |
| return false; |
| } |
| |
| } |