| /* |
| * 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); |
| }*/ |
| } |
| } |