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	/*
	* reserved comment block
	* DO NOT REMOVE OR ALTER!
	*/
	/*
	* 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.
	*/

	package com.sun.org.apache.bcel.internal.util;

	import java.io.FileOutputStream;
	import java.io.IOException;
	import java.io.PrintWriter;

	import com.sun.org.apache.bcel.internal.Const;
	import com.sun.org.apache.bcel.internal.classfile.Attribute;
	import com.sun.org.apache.bcel.internal.classfile.Code;
	import com.sun.org.apache.bcel.internal.classfile.CodeException;
	import com.sun.org.apache.bcel.internal.classfile.ConstantPool;
	import com.sun.org.apache.bcel.internal.classfile.ConstantUtf8;
	import com.sun.org.apache.bcel.internal.classfile.ConstantValue;
	import com.sun.org.apache.bcel.internal.classfile.ExceptionTable;
	import com.sun.org.apache.bcel.internal.classfile.InnerClass;
	import com.sun.org.apache.bcel.internal.classfile.InnerClasses;
	import com.sun.org.apache.bcel.internal.classfile.LineNumber;
	import com.sun.org.apache.bcel.internal.classfile.LineNumberTable;
	import com.sun.org.apache.bcel.internal.classfile.LocalVariable;
	import com.sun.org.apache.bcel.internal.classfile.LocalVariableTable;
	import com.sun.org.apache.bcel.internal.classfile.SourceFile;
	import com.sun.org.apache.bcel.internal.classfile.Utility;

	/**
	* Convert found attributes into HTML file.
	*
	* @version $Id: AttributeHTML.java 1749603 2016-06-21 20:50:19Z ggregory $
	*
	*/
	final class AttributeHTML {

	private final String class_name; // name of current class
	private final PrintWriter file; // file to write to
	private int attr_count = 0;
	private final ConstantHTML constant_html;
	private final ConstantPool constant_pool;


	AttributeHTML(final String dir, final String class_name, final ConstantPool constant_pool,
	final 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 String codeLink( final int link, final 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( final Attribute attribute, final String anchor ) {
	writeAttribute(attribute, anchor, 0);
	}


	final void writeAttribute( final Attribute attribute, final String anchor, final int method_number ) {
	final byte tag = attribute.getTag();
	int index;
	if (tag == Const.ATTR_UNKNOWN) {
	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 + " " + Const.getAttributeName(tag)
	+ "</A></H4>");
	/* Handle different attributes
	*/
	switch (tag) {
	case Const.ATTR_CODE:
	final 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
	final CodeException[] ce = c.getExceptionTable();
	final int len = ce.length;
	if (len > 0) {
	file.print("<P><B>Exceptions handled</B><UL>");
	for (final CodeException cex : ce) {
	final int catch_type = cex.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(cex.getStartPC(), method_number) + " to "
	+ codeLink(cex.getEndPC(), method_number) + ", handled at line "
	+ codeLink(cex.getHandlerPC(), method_number) + ")</LI>");
	}
	file.print("</UL>");
	}
	break;
	case Const.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 Const.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 Const.ATTR_EXCEPTIONS:
	// List thrown exceptions
	final int[] indices = ((ExceptionTable) attribute).getExceptionIndexTable();
	file.print("<UL>");
	for (final int indice : indices) {
	file.print("<LI><A HREF=\"" + class_name + "_cp.html#cp" + indice
	+ "\" TARGET=\"ConstantPool\">Exception class index(" + indice
	+ ")</A>\n");
	}
	file.print("</UL>\n");
	break;
	case Const.ATTR_LINE_NUMBER_TABLE:
	final 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() + ", "
	+ line_numbers[i].getLineNumber() + ")");
	if (i < line_numbers.length - 1) {
	file.print(", "); // breakable
	}
	}
	break;
	case Const.ATTR_LOCAL_VARIABLE_TABLE:
	final LocalVariable[] vars = ((LocalVariableTable) attribute).getLocalVariableTable();
	// List name, range and type
	file.print("<UL>");
	for (final LocalVariable var : vars) {
	index = var.getSignatureIndex();
	String signature = ((ConstantUtf8) constant_pool.getConstant(index,
	Const.CONSTANT_Utf8)).getBytes();
	signature = Utility.signatureToString(signature, false);
	final int start = var.getStartPC();
	final int end = start + var.getLength();
	file.println("<LI>" + Class2HTML.referenceType(signature) + " <B>"
	+ var.getName() + "</B> in slot %" + var.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 Const.ATTR_INNER_CLASSES:
	final InnerClass[] classes = ((InnerClasses) attribute).getInnerClasses();
	// List inner classes
	file.print("<UL>");
	for (final InnerClass classe : classes) {
	String name;
	String access;
	index = classe.getInnerNameIndex();
	if (index > 0) {
	name = ((ConstantUtf8) constant_pool.getConstant(index, Const.CONSTANT_Utf8))
	.getBytes();
	} else {
	name = "<anonymous>";
	}
	access = Utility.accessToString(classe.getInnerAccessFlags());
	file.print("<LI><FONT COLOR=\"#FF0000\">" + access + "</FONT> "
	+ constant_html.referenceConstant(classe.getInnerClassIndex())
	+ " in class "
	+ constant_html.referenceConstant(classe.getOuterClassIndex())
	+ " named " + name + "</LI>\n");
	}
	file.print("</UL>\n");
	break;
	default: // Such as Unknown attribute or Deprecated
	file.print("<P>" + attribute);
	}
	file.println("</TD></TR>");
	file.flush();
	}
	}

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