- /*
- * Copyright 1999-2004 The Apache Software Foundation.
- *
- * Licensed 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.
- */
- package com.sun.org.apache.xpath.internal.functions;
-
- import com.sun.org.apache.xalan.internal.templates.Constants;
- //import com.sun.org.apache.xalan.internal.transformer.TransformerImpl;
- import com.sun.org.apache.xml.internal.utils.QName;
- import com.sun.org.apache.xpath.internal.ExtensionsProvider;
- import com.sun.org.apache.xpath.internal.XPathContext;
- import com.sun.org.apache.xpath.internal.objects.XBoolean;
- import com.sun.org.apache.xpath.internal.objects.XObject;
-
- /**
- * Execute the ExtElementAvailable() function.
- * @xsl.usage advanced
- */
- public class FuncExtElementAvailable extends FunctionOneArg
- {
-
- /**
- * Execute the function. The function must return
- * a valid object.
- * @param xctxt The current execution context.
- * @return A valid XObject.
- *
- * @throws javax.xml.transform.TransformerException
- */
- public XObject execute(XPathContext xctxt) throws javax.xml.transform.TransformerException
- {
-
- String prefix;
- String namespace;
- String methName;
-
- String fullName = m_arg0.execute(xctxt).str();
- int indexOfNSSep = fullName.indexOf(':');
-
- if (indexOfNSSep < 0)
- {
- prefix = "";
- namespace = Constants.S_XSLNAMESPACEURL;
- methName = fullName;
- }
- else
- {
- prefix = fullName.substring(0, indexOfNSSep);
- namespace = xctxt.getNamespaceContext().getNamespaceForPrefix(prefix);
- if (null == namespace)
- return XBoolean.S_FALSE;
- methName= fullName.substring(indexOfNSSep + 1);
- }
-
- if (namespace.equals(Constants.S_XSLNAMESPACEURL)
- || namespace.equals(Constants.S_BUILTIN_EXTENSIONS_URL))
- {
- // <<<<<<< TIGER SPECIFIC CHANGE >>>>>>>>>
- // As we are not supporting Xalan interpretive we are taking away the functionality
- // dependent on XSLT interpretive Transformer. Only way supported is to use XSLTC
- // and the execution path needed for supporting standard XPath API defined by
- // JAXP 1.3 . This method is overridden in XPath implementation to support
- // standard XPath functionality with xpath package of Xalan
-
- return XBoolean.S_FALSE;
- }
- else
- {
- //dml
- ExtensionsProvider extProvider = (ExtensionsProvider)xctxt.getOwnerObject();
- return extProvider.elementAvailable(namespace, methName)
- ? XBoolean.S_TRUE : XBoolean.S_FALSE;
- }
- }
- }