| /* |
| * 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. |
| */ |
| /* |
| * $Id$ |
| */ |
| |
| package org.apache.xalan.xsltc.compiler.util; |
| |
| import org.apache.bcel.classfile.Method; |
| import org.apache.bcel.generic.ALOAD; |
| import org.apache.bcel.generic.ClassGen; |
| import org.apache.bcel.generic.Instruction; |
| import org.apache.xalan.xsltc.compiler.Constants; |
| import org.apache.xalan.xsltc.compiler.Parser; |
| import org.apache.xalan.xsltc.compiler.Stylesheet; |
| |
| /** |
| * The class that implements any class that inherits from |
| * <tt>AbstractTranslet</tt>, i.e. any translet. Methods in this |
| * class may be of the following kinds: |
| * |
| * 1. Main method: applyTemplates, implemented by intances of |
| * <tt>MethodGenerator</tt>. |
| * |
| * 2. Named methods: for named templates, implemented by instances |
| * of <tt>NamedMethodGenerator</tt>. |
| * |
| * 3. Rt methods: for result tree fragments, implemented by |
| * instances of <tt>RtMethodGenerator</tt>. |
| * @author Jacek Ambroziak |
| * @author Santiago Pericas-Geertsen |
| */ |
| public class ClassGenerator extends ClassGen { |
| protected final static int TRANSLET_INDEX = 0; |
| |
| private Stylesheet _stylesheet; |
| private final Parser _parser; // --> can be moved to XSLT |
| // a single instance cached here |
| private final Instruction _aloadTranslet; |
| private final String _domClass; |
| private final String _domClassSig; |
| private final String _applyTemplatesSig; |
| private final String _applyTemplatesSigForImport; |
| |
| public ClassGenerator(String class_name, String super_class_name, |
| String file_name, |
| int access_flags, String[] interfaces, |
| Stylesheet stylesheet) { |
| super(class_name, super_class_name, file_name, |
| access_flags, interfaces); |
| _stylesheet = stylesheet; |
| _parser = stylesheet.getParser(); |
| _aloadTranslet = new ALOAD(TRANSLET_INDEX); |
| |
| if (stylesheet.isMultiDocument()) { |
| _domClass = "org.apache.xalan.xsltc.dom.MultiDOM"; |
| _domClassSig = "Lorg/apache/xalan/xsltc/dom/MultiDOM;"; |
| } |
| else { |
| _domClass = "org.apache.xalan.xsltc.dom.DOMAdapter"; |
| _domClassSig = "Lorg/apache/xalan/xsltc/dom/DOMAdapter;"; |
| } |
| _applyTemplatesSig = "(" |
| + Constants.DOM_INTF_SIG |
| + Constants.NODE_ITERATOR_SIG |
| + Constants.TRANSLET_OUTPUT_SIG |
| + ")V"; |
| |
| _applyTemplatesSigForImport = "(" |
| + Constants.DOM_INTF_SIG |
| + Constants.NODE_ITERATOR_SIG |
| + Constants.TRANSLET_OUTPUT_SIG |
| + Constants.NODE_FIELD_SIG |
| + ")V"; |
| } |
| |
| public final Parser getParser() { |
| return _parser; |
| } |
| |
| public final Stylesheet getStylesheet() { |
| return _stylesheet; |
| } |
| |
| /** |
| * Pretend this is the stylesheet class. Useful when compiling |
| * references to global variables inside a predicate. |
| */ |
| public final String getClassName() { |
| return _stylesheet.getClassName(); |
| } |
| |
| public Instruction loadTranslet() { |
| return _aloadTranslet; |
| } |
| |
| public final String getDOMClass() { |
| return _domClass; |
| } |
| |
| public final String getDOMClassSig() { |
| return _domClassSig; |
| } |
| |
| public final String getApplyTemplatesSig() { |
| return _applyTemplatesSig; |
| } |
| |
| public final String getApplyTemplatesSigForImport() { |
| return _applyTemplatesSigForImport; |
| } |
| |
| /** |
| * Returns <tt>true</tt> or <tt>false</tt> depending on whether |
| * this class inherits from <tt>AbstractTranslet</tt> or not. |
| */ |
| public boolean isExternal() { |
| return false; |
| } |
| |
| public void addMethod(MethodGenerator methodGen) { |
| Method[] methodsToAdd = methodGen.getGeneratedMethods(this); |
| for (int i = 0; i < methodsToAdd.length; i++) { |
| addMethod(methodsToAdd[i]); |
| } |
| } |
| } |