| /* |
| * 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: ProcessorKey.java 469688 2006-10-31 22:39:43Z minchau $ |
| */ |
| package org.apache.xalan.processor; |
| |
| import java.util.ArrayList; |
| import java.util.List; |
| |
| import org.apache.xalan.res.XSLMessages; |
| import org.apache.xalan.res.XSLTErrorResources; |
| import org.apache.xalan.templates.KeyDeclaration; |
| import org.xml.sax.Attributes; |
| |
| /** |
| * TransformerFactory for xsl:key markup. |
| * <pre> |
| * <!ELEMENT xsl:key EMPTY> |
| * <!ATTLIST xsl:key |
| * name %qname; #REQUIRED |
| * match %pattern; #REQUIRED |
| * use %expr; #REQUIRED |
| * > |
| * </pre> |
| * @see <a href="http://www.w3.org/TR/xslt#dtd">XSLT DTD</a> |
| * @see <a href="http://www.w3.org/TR/xslt#key">key in XSLT Specification</a> |
| */ |
| class ProcessorKey extends XSLTElementProcessor |
| { |
| static final long serialVersionUID = 4285205417566822979L; |
| |
| /** |
| * Receive notification of the start of an xsl:key element. |
| * |
| * @param handler The calling StylesheetHandler/TemplatesBuilder. |
| * @param uri The Namespace URI, or the empty string if the |
| * element has no Namespace URI or if Namespace |
| * processing is not being performed. |
| * @param localName The local name (without prefix), or the |
| * empty string if Namespace processing is not being |
| * performed. |
| * @param rawName The raw XML 1.0 name (with prefix), or the |
| * empty string if raw names are not available. |
| * @param attributes The attributes attached to the element. If |
| * there are no attributes, it shall be an empty |
| * Attributes object. |
| */ |
| public void startElement( |
| StylesheetHandler handler, String uri, String localName, String rawName, Attributes attributes) |
| throws org.xml.sax.SAXException |
| { |
| |
| KeyDeclaration kd = new KeyDeclaration(handler.getStylesheet(), handler.nextUid()); |
| |
| kd.setDOMBackPointer(handler.getOriginatingNode()); |
| kd.setLocaterInfo(handler.getLocator()); |
| setPropertiesFromAttributes(handler, rawName, attributes, kd); |
| handler.getStylesheet().setKey(kd); |
| } |
| |
| /** |
| * Set the properties of an object from the given attribute list. |
| * @param handler The stylesheet's Content handler, needed for |
| * error reporting. |
| * @param rawName The raw name of the owner element, needed for |
| * error reporting. |
| * @param attributes The list of attributes. |
| * @param target The target element where the properties will be set. |
| */ |
| void setPropertiesFromAttributes( |
| StylesheetHandler handler, String rawName, Attributes attributes, |
| org.apache.xalan.templates.ElemTemplateElement target) |
| throws org.xml.sax.SAXException |
| { |
| |
| XSLTElementDef def = getElemDef(); |
| |
| // Keep track of which XSLTAttributeDefs have been processed, so |
| // I can see which default values need to be set. |
| List processedDefs = new ArrayList(); |
| int nAttrs = attributes.getLength(); |
| |
| for (int i = 0; i < nAttrs; i++) |
| { |
| String attrUri = attributes.getURI(i); |
| String attrLocalName = attributes.getLocalName(i); |
| XSLTAttributeDef attrDef = def.getAttributeDef(attrUri, attrLocalName); |
| |
| if (null == attrDef) |
| { |
| |
| // Then barf, because this element does not allow this attribute. |
| handler.error(attributes.getQName(i) |
| + "attribute is not allowed on the " + rawName |
| + " element!", null); |
| } |
| else |
| { |
| String valueString = attributes.getValue(i); |
| |
| if (valueString.indexOf(org.apache.xpath.compiler.Keywords.FUNC_KEY_STRING |
| + "(") >= 0) |
| handler.error( |
| XSLMessages.createMessage( |
| XSLTErrorResources.ER_INVALID_KEY_CALL, null), null); |
| |
| processedDefs.add(attrDef); |
| attrDef.setAttrValue(handler, attrUri, attrLocalName, |
| attributes.getQName(i), attributes.getValue(i), |
| target); |
| } |
| } |
| |
| XSLTAttributeDef[] attrDefs = def.getAttributes(); |
| int nAttrDefs = attrDefs.length; |
| |
| for (int i = 0; i < nAttrDefs; i++) |
| { |
| XSLTAttributeDef attrDef = attrDefs[i]; |
| String defVal = attrDef.getDefault(); |
| |
| if (null != defVal) |
| { |
| if (!processedDefs.contains(attrDef)) |
| { |
| attrDef.setDefAttrValue(handler, target); |
| } |
| } |
| |
| if (attrDef.getRequired()) |
| { |
| if (!processedDefs.contains(attrDef)) |
| handler.error( |
| XSLMessages.createMessage( |
| XSLTErrorResources.ER_REQUIRES_ATTRIB, new Object[]{ rawName, |
| attrDef.getName() }), null); |
| } |
| } |
| } |
| } |