jaxp/src/com/sun/org/apache/bcel/internal/util/AttributeHTML.java
changeset 12457 c348e06f0e82
parent 6 7f561c08de6b
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/jaxp/src/com/sun/org/apache/bcel/internal/util/AttributeHTML.java	Thu Apr 12 08:38:26 2012 -0700
@@ -0,0 +1,258 @@
+/*
+ * reserved comment block
+ * DO NOT REMOVE OR ALTER!
+ */
+package com.sun.org.apache.bcel.internal.util;
+
+/* ====================================================================
+ * The Apache Software License, Version 1.1
+ *
+ * Copyright (c) 2001 The Apache Software Foundation.  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. The end-user documentation included with the redistribution,
+ *    if any, must include the following acknowledgment:
+ *       "This product includes software developed by the
+ *        Apache Software Foundation (http://www.apache.org/)."
+ *    Alternately, this acknowledgment may appear in the software itself,
+ *    if and wherever such third-party acknowledgments normally appear.
+ *
+ * 4. The names "Apache" and "Apache Software Foundation" and
+ *    "Apache BCEL" must not be used to endorse or promote products
+ *    derived from this software without prior written permission. For
+ *    written permission, please contact apache@apache.org.
+ *
+ * 5. Products derived from this software may not be called "Apache",
+ *    "Apache BCEL", nor may "Apache" appear in their name, without
+ *    prior written permission of the Apache Software Foundation.
+ *
+ * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED 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 APACHE SOFTWARE FOUNDATION OR
+ * ITS 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.
+ * ====================================================================
+ *
+ * This software consists of voluntary contributions made by many
+ * individuals on behalf of the Apache Software Foundation.  For more
+ * information on the Apache Software Foundation, please see
+ * <http://www.apache.org/>.
+ */
+
+import com.sun.org.apache.bcel.internal.classfile.*;
+import java.io.*;
+
+/**
+ * Convert found attributes into HTML file.
+ *
+ * @author  <A HREF="mailto:markus.dahm@berlin.de">M. Dahm</A>
+ *
+ */
+final class AttributeHTML implements com.sun.org.apache.bcel.internal.Constants {
+  private String       class_name;     // name of current class
+  private PrintWriter  file;                                    // file to write to
+  private int          attr_count = 0;
+  private ConstantHTML constant_html;
+  private ConstantPool constant_pool;
+
+  AttributeHTML(String dir, String class_name, ConstantPool constant_pool,
+                ConstantHTML constant_html) throws IOException
+  {
+    this.class_name    = class_name;
+    this.constant_pool = constant_pool;
+    this.constant_html = constant_html;
+
+    file = new PrintWriter(new FileOutputStream(dir + class_name + "_attributes.html"));
+    file.println("<HTML><BODY BGCOLOR=\"#C0C0C0\"><TABLE BORDER=0>");
+  }
+
+  private final String codeLink(int link, int method_number) {
+    return "<A HREF=\"" + class_name + "_code.html#code" +
+      method_number + "@" + link + "\" TARGET=Code>" +
+      link + "</A>";
+  }
+
+  final void close() {
+    file.println("</TABLE></BODY></HTML>");
+    file.close();
+  }
+
+  final void writeAttribute(Attribute attribute, String anchor) throws IOException {
+    writeAttribute(attribute, anchor, 0);
+  }
+
+  final void writeAttribute(Attribute attribute, String anchor, int method_number) throws IOException {
+    byte         tag = attribute.getTag();
+    int        index;
+
+    if(tag == ATTR_UNKNOWN) // Don't know what to do about this one
+      return;
+
+    attr_count++; // Increment number of attributes found so far
+
+    if(attr_count % 2 == 0)
+      file.print("<TR BGCOLOR=\"#C0C0C0\"><TD>");
+    else
+      file.print("<TR BGCOLOR=\"#A0A0A0\"><TD>");
+
+    file.println("<H4><A NAME=\"" + anchor + "\">" + attr_count + " " + ATTRIBUTE_NAMES[tag] + "</A></H4>");
+
+    /* Handle different attributes
+     */
+    switch(tag) {
+    case ATTR_CODE:
+      Code        c          = (Code)attribute;
+
+      // Some directly printable values
+      file.print("<UL><LI>Maximum stack size = " + c.getMaxStack() +
+                 "</LI>\n<LI>Number of local variables = " +
+                 c.getMaxLocals() + "</LI>\n<LI><A HREF=\"" + class_name +
+                 "_code.html#method" + method_number + "\" TARGET=Code>Byte code</A></LI></UL>\n");
+
+      // Get handled exceptions and list them
+      CodeException[] ce  = c.getExceptionTable();
+      int             len = ce.length;
+
+      if(len > 0) {
+        file.print("<P><B>Exceptions handled</B><UL>");
+
+        for(int i=0; i < len; i++) {
+          int catch_type = ce[i].getCatchType(); // Index in constant pool
+
+          file.print("<LI>");
+
+          if(catch_type != 0)
+            file.print(constant_html.referenceConstant(catch_type)); // Create Link to _cp.html
+          else
+            file.print("Any Exception");
+
+          file.print("<BR>(Ranging from lines " + codeLink(ce[i].getStartPC(), method_number) +
+                     " to " + codeLink(ce[i].getEndPC(), method_number) + ", handled at line " +
+                     codeLink(ce[i].getHandlerPC(), method_number) + ")</LI>");
+        }
+        file.print("</UL>");
+      }
+      break;
+
+    case ATTR_CONSTANT_VALUE:
+      index = ((ConstantValue)attribute).getConstantValueIndex();
+
+      // Reference _cp.html
+      file.print("<UL><LI><A HREF=\"" + class_name + "_cp.html#cp" + index +
+                 "\" TARGET=\"ConstantPool\">Constant value index(" + index +")</A></UL>\n");
+      break;
+
+    case ATTR_SOURCE_FILE:
+      index = ((SourceFile)attribute).getSourceFileIndex();
+
+      // Reference _cp.html
+      file.print("<UL><LI><A HREF=\"" + class_name + "_cp.html#cp" + index +
+                 "\" TARGET=\"ConstantPool\">Source file index(" + index +")</A></UL>\n");
+      break;
+
+    case ATTR_EXCEPTIONS:
+      // List thrown exceptions
+      int[] indices = ((ExceptionTable)attribute).getExceptionIndexTable();
+
+      file.print("<UL>");
+
+      for(int i=0; i < indices.length; i++)
+        file.print("<LI><A HREF=\"" + class_name + "_cp.html#cp" + indices[i] +
+                   "\" TARGET=\"ConstantPool\">Exception class index(" + indices[i] + ")</A>\n");
+
+      file.print("</UL>\n");
+      break;
+
+    case ATTR_LINE_NUMBER_TABLE:
+      LineNumber[] line_numbers =((LineNumberTable)attribute).getLineNumberTable();
+
+      // List line number pairs
+      file.print("<P>");
+
+      for(int i=0; i < line_numbers.length; i++) {
+        file.print("(" + line_numbers[i].getStartPC() + ",&nbsp;" + line_numbers[i].getLineNumber() + ")");
+
+        if(i < line_numbers.length - 1)
+          file.print(", "); // breakable
+      }
+      break;
+
+    case ATTR_LOCAL_VARIABLE_TABLE:
+      LocalVariable[] vars = ((LocalVariableTable)attribute).getLocalVariableTable();
+
+      // List name, range and type
+      file.print("<UL>");
+
+      for(int i=0; i < vars.length; i++) {
+        index = vars[i].getSignatureIndex();
+        String signature = ((ConstantUtf8)constant_pool.getConstant(index, CONSTANT_Utf8)).getBytes();
+        signature = Utility.signatureToString(signature, false);
+        int  start = vars[i].getStartPC();
+        int  end   = (start + vars[i].getLength());
+
+        file.println("<LI>" + Class2HTML.referenceType(signature) +
+                     "&nbsp;<B>" + vars[i].getName() + "</B> in slot %" + vars[i].getIndex() +
+                     "<BR>Valid from lines " +
+                     "<A HREF=\"" + class_name + "_code.html#code" + method_number + "@" + start + "\" TARGET=Code>" +
+                     start + "</A> to " +
+                     "<A HREF=\"" + class_name + "_code.html#code" + method_number + "@" + end + "\" TARGET=Code>" +
+                     end + "</A></LI>");
+      }
+      file.print("</UL>\n");
+
+      break;
+
+    case ATTR_INNER_CLASSES:
+      InnerClass[] classes = ((InnerClasses)attribute).getInnerClasses();
+
+      // List inner classes
+      file.print("<UL>");
+
+      for(int i=0; i < classes.length; i++) {
+        String name, access;
+
+        index = classes[i].getInnerNameIndex();
+        if(index > 0)
+          name =((ConstantUtf8)constant_pool.getConstant(index, CONSTANT_Utf8)).getBytes();
+        else
+          name = "&lt;anonymous&gt;";
+
+        access = Utility.accessToString(classes[i].getInnerAccessFlags());
+
+        file.print("<LI><FONT COLOR=\"#FF0000\">" + access + "</FONT> "+
+                   constant_html.referenceConstant(classes[i].getInnerClassIndex()) +
+                   " in&nbsp;class " +
+                   constant_html.referenceConstant(classes[i].getOuterClassIndex()) +
+                   " named " + name + "</LI>\n");
+      }
+
+      file.print("</UL>\n");
+      break;
+
+    default: // Such as Unknown attribute or Deprecated
+      file.print("<P>" + attribute.toString());
+    }
+
+    file.println("</TD></TR>");
+    file.flush();
+  }
+}