| /*** |
| * ASM XML Adapter |
| * Copyright (c) 2004-2011, Eugene Kuleshov |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * 3. Neither the name of the copyright holders nor the names of its |
| * contributors may be used to endorse or promote products derived from |
| * this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
| * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE |
| * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
| * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
| * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
| * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
| * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
| * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF |
| * THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| package org.apache.tapestry5.internal.plastic.asm.xml; |
| |
| import org.apache.tapestry5.internal.plastic.asm.AnnotationVisitor; |
| import org.apache.tapestry5.internal.plastic.asm.ClassVisitor; |
| import org.apache.tapestry5.internal.plastic.asm.FieldVisitor; |
| import org.apache.tapestry5.internal.plastic.asm.MethodVisitor; |
| import org.apache.tapestry5.internal.plastic.asm.ModuleVisitor; |
| import org.apache.tapestry5.internal.plastic.asm.Opcodes; |
| import org.apache.tapestry5.internal.plastic.asm.TypePath; |
| import org.xml.sax.ContentHandler; |
| import org.xml.sax.helpers.AttributesImpl; |
| |
| /** |
| * A {@link org.objectweb.asm.ClassVisitor ClassVisitor} that generates SAX 2.0 |
| * events from the visited class. It can feed any kind of |
| * {@link org.xml.sax.ContentHandler ContentHandler}, e.g. XML serializer, XSLT |
| * or XQuery engines. |
| * |
| * @see org.objectweb.asm.xml.Processor |
| * @see org.objectweb.asm.xml.ASMContentHandler |
| * |
| * @author Eugene Kuleshov |
| */ |
| public final class SAXClassAdapter extends ClassVisitor { |
| |
| SAXAdapter sa; |
| |
| private final boolean singleDocument; |
| |
| /** |
| * Pseudo access flag used to distinguish class access flags. |
| */ |
| private static final int ACCESS_CLASS = 262144; |
| |
| /** |
| * Pseudo access flag used to distinguish field access flags. |
| */ |
| private static final int ACCESS_FIELD = 524288; |
| |
| /** |
| * Pseudo access flag used to distinguish inner class flags. |
| */ |
| private static final int ACCESS_INNER = 1048576; |
| |
| /** |
| * Pseudo access flag used to distinguish module flags. |
| */ |
| static final int ACCESS_MODULE = 2097152; |
| |
| /** |
| * Pseudo access flag used to distinguish module requires flags. |
| */ |
| static final int ACCESS_MODULE_REQUIRES = 4194304; |
| |
| /** |
| * Constructs a new {@link SAXClassAdapter SAXClassAdapter} object. |
| * |
| * @param h |
| * content handler that will be used to send SAX 2.0 events. |
| * @param singleDocument |
| * if <tt>true</tt> adapter will not produce |
| * {@link ContentHandler#startDocument() startDocument()} and |
| * {@link ContentHandler#endDocument() endDocument()} events. |
| */ |
| public SAXClassAdapter(final ContentHandler h, boolean singleDocument) { |
| super(Opcodes.ASM6); |
| this.sa = new SAXAdapter(h); |
| this.singleDocument = singleDocument; |
| if (!singleDocument) { |
| sa.addDocumentStart(); |
| } |
| } |
| |
| @Override |
| public void visitSource(final String source, final String debug) { |
| AttributesImpl att = new AttributesImpl(); |
| if (source != null) { |
| att.addAttribute("", "file", "file", "", encode(source)); |
| } |
| if (debug != null) { |
| att.addAttribute("", "debug", "debug", "", encode(debug)); |
| } |
| |
| sa.addElement("source", att); |
| } |
| |
| @Override |
| public ModuleVisitor visitModule(final String name, final int access, |
| final String version) { |
| AttributesImpl att = new AttributesImpl(); |
| att.addAttribute("", "name", "name", "", name); |
| StringBuilder sb = new StringBuilder(); |
| appendAccess(access | ACCESS_MODULE, sb); |
| att.addAttribute("", "access", "access", "", sb.toString()); |
| if (version != null) { |
| att.addAttribute("", "version", "version", "", encode(version)); |
| } |
| sa.addStart("module", att); |
| return new SAXModuleAdapter(sa); |
| } |
| |
| @Override |
| public void visitOuterClass(final String owner, final String name, |
| final String desc) { |
| AttributesImpl att = new AttributesImpl(); |
| att.addAttribute("", "owner", "owner", "", owner); |
| if (name != null) { |
| att.addAttribute("", "name", "name", "", name); |
| } |
| if (desc != null) { |
| att.addAttribute("", "desc", "desc", "", desc); |
| } |
| |
| sa.addElement("outerclass", att); |
| } |
| |
| @Override |
| public AnnotationVisitor visitAnnotation(final String desc, |
| final boolean visible) { |
| return new SAXAnnotationAdapter(sa, "annotation", visible ? 1 : -1, |
| null, desc); |
| } |
| |
| @Override |
| public AnnotationVisitor visitTypeAnnotation(int typeRef, |
| TypePath typePath, String desc, boolean visible) { |
| return new SAXAnnotationAdapter(sa, "typeAnnotation", visible ? 1 : -1, |
| null, desc, typeRef, typePath); |
| } |
| |
| @Override |
| public void visit(final int version, final int access, final String name, |
| final String signature, final String superName, |
| final String[] interfaces) { |
| StringBuilder sb = new StringBuilder(); |
| appendAccess(access | ACCESS_CLASS, sb); |
| |
| AttributesImpl att = new AttributesImpl(); |
| att.addAttribute("", "access", "access", "", sb.toString()); |
| if (name != null) { |
| att.addAttribute("", "name", "name", "", name); |
| } |
| if (signature != null) { |
| att.addAttribute("", "signature", "signature", "", |
| encode(signature)); |
| } |
| if (superName != null) { |
| att.addAttribute("", "parent", "parent", "", superName); |
| } |
| att.addAttribute("", "major", "major", "", |
| Integer.toString(version & 0xFFFF)); |
| att.addAttribute("", "minor", "minor", "", |
| Integer.toString(version >>> 16)); |
| sa.addStart("class", att); |
| |
| sa.addStart("interfaces", new AttributesImpl()); |
| if (interfaces != null && interfaces.length > 0) { |
| for (int i = 0; i < interfaces.length; i++) { |
| AttributesImpl att2 = new AttributesImpl(); |
| att2.addAttribute("", "name", "name", "", interfaces[i]); |
| sa.addElement("interface", att2); |
| } |
| } |
| sa.addEnd("interfaces"); |
| } |
| |
| @Override |
| public FieldVisitor visitField(final int access, final String name, |
| final String desc, final String signature, final Object value) { |
| StringBuilder sb = new StringBuilder(); |
| appendAccess(access | ACCESS_FIELD, sb); |
| |
| AttributesImpl att = new AttributesImpl(); |
| att.addAttribute("", "access", "access", "", sb.toString()); |
| att.addAttribute("", "name", "name", "", name); |
| att.addAttribute("", "desc", "desc", "", desc); |
| if (signature != null) { |
| att.addAttribute("", "signature", "signature", "", |
| encode(signature)); |
| } |
| if (value != null) { |
| att.addAttribute("", "value", "value", "", encode(value.toString())); |
| } |
| |
| return new SAXFieldAdapter(sa, att); |
| } |
| |
| @Override |
| public MethodVisitor visitMethod(final int access, final String name, |
| final String desc, final String signature, final String[] exceptions) { |
| StringBuilder sb = new StringBuilder(); |
| appendAccess(access, sb); |
| |
| AttributesImpl att = new AttributesImpl(); |
| att.addAttribute("", "access", "access", "", sb.toString()); |
| att.addAttribute("", "name", "name", "", name); |
| att.addAttribute("", "desc", "desc", "", desc); |
| if (signature != null) { |
| att.addAttribute("", "signature", "signature", "", signature); |
| } |
| sa.addStart("method", att); |
| |
| sa.addStart("exceptions", new AttributesImpl()); |
| if (exceptions != null && exceptions.length > 0) { |
| for (int i = 0; i < exceptions.length; i++) { |
| AttributesImpl att2 = new AttributesImpl(); |
| att2.addAttribute("", "name", "name", "", exceptions[i]); |
| sa.addElement("exception", att2); |
| } |
| } |
| sa.addEnd("exceptions"); |
| |
| return new SAXCodeAdapter(sa, access); |
| } |
| |
| @Override |
| public final void visitInnerClass(final String name, |
| final String outerName, final String innerName, final int access) { |
| StringBuilder sb = new StringBuilder(); |
| appendAccess(access | ACCESS_INNER, sb); |
| |
| AttributesImpl att = new AttributesImpl(); |
| att.addAttribute("", "access", "access", "", sb.toString()); |
| if (name != null) { |
| att.addAttribute("", "name", "name", "", name); |
| } |
| if (outerName != null) { |
| att.addAttribute("", "outerName", "outerName", "", outerName); |
| } |
| if (innerName != null) { |
| att.addAttribute("", "innerName", "innerName", "", innerName); |
| } |
| sa.addElement("innerclass", att); |
| } |
| |
| @Override |
| public final void visitEnd() { |
| sa.addEnd("class"); |
| if (!singleDocument) { |
| sa.addDocumentEnd(); |
| } |
| } |
| |
| static final String encode(final String s) { |
| StringBuilder sb = new StringBuilder(); |
| for (int i = 0; i < s.length(); i++) { |
| char c = s.charAt(i); |
| if (c == '\\') { |
| sb.append("\\\\"); |
| } else if (c < 0x20 || c > 0x7f) { |
| sb.append("\\u"); |
| if (c < 0x10) { |
| sb.append("000"); |
| } else if (c < 0x100) { |
| sb.append("00"); |
| } else if (c < 0x1000) { |
| sb.append('0'); |
| } |
| sb.append(Integer.toString(c, 16)); |
| } else { |
| sb.append(c); |
| } |
| } |
| return sb.toString(); |
| } |
| |
| static void appendAccess(final int access, final StringBuilder sb) { |
| if ((access & Opcodes.ACC_PUBLIC) != 0) { |
| sb.append("public "); |
| } |
| if ((access & Opcodes.ACC_PRIVATE) != 0) { |
| sb.append("private "); |
| } |
| if ((access & Opcodes.ACC_PROTECTED) != 0) { |
| sb.append("protected "); |
| } |
| if ((access & Opcodes.ACC_FINAL) != 0) { |
| if ((access & ACCESS_MODULE) == 0) { |
| sb.append("final "); |
| } else { |
| sb.append("transitive "); |
| } |
| } |
| if ((access & Opcodes.ACC_STATIC) != 0) { |
| sb.append("static "); |
| } |
| if ((access & Opcodes.ACC_SUPER) != 0) { |
| if ((access & ACCESS_CLASS) == 0) { |
| if ((access & ACCESS_MODULE_REQUIRES) != 0) { |
| sb.append("transitive "); |
| } else { |
| if ((access & ACCESS_MODULE) == 0) { |
| sb.append("synchronized "); |
| } else { |
| sb.append("open "); |
| } |
| } |
| } else { |
| sb.append("super "); |
| } |
| } |
| if ((access & Opcodes.ACC_VOLATILE) != 0) { |
| if ((access & ACCESS_FIELD) == 0) { |
| sb.append("bridge "); |
| } else { |
| if ((access & ACCESS_MODULE_REQUIRES) == 0) { |
| sb.append("volatile "); |
| } else { |
| sb.append("static "); |
| } |
| } |
| } |
| if ((access & Opcodes.ACC_TRANSIENT) != 0) { |
| if ((access & ACCESS_FIELD) == 0) { |
| sb.append("varargs "); |
| } else { |
| sb.append("transient "); |
| } |
| } |
| if ((access & Opcodes.ACC_NATIVE) != 0) { |
| sb.append("native "); |
| } |
| if ((access & Opcodes.ACC_STRICT) != 0) { |
| sb.append("strict "); |
| } |
| if ((access & Opcodes.ACC_INTERFACE) != 0) { |
| sb.append("interface "); |
| } |
| if ((access & Opcodes.ACC_ABSTRACT) != 0) { |
| sb.append("abstract "); |
| } |
| if ((access & Opcodes.ACC_SYNTHETIC) != 0) { |
| sb.append("synthetic "); |
| } |
| if ((access & Opcodes.ACC_ANNOTATION) != 0) { |
| sb.append("annotation "); |
| } |
| if ((access & Opcodes.ACC_ENUM) != 0) { |
| sb.append("enum "); |
| } |
| if ((access & Opcodes.ACC_DEPRECATED) != 0) { |
| sb.append("deprecated "); |
| } |
| if ((access & Opcodes.ACC_MANDATED) != 0) { |
| if ((access & ACCESS_CLASS) == 0) { |
| sb.append("module "); |
| } else { |
| sb.append("mandated "); |
| } |
| } |
| } |
| } |
