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/*
* 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 org.apache.bcel.util;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.PrintWriter;
import org.apache.bcel.classfile.Attribute;
import org.apache.bcel.classfile.Code;
import org.apache.bcel.classfile.ConstantValue;
import org.apache.bcel.classfile.ExceptionTable;
import org.apache.bcel.classfile.Field;
import org.apache.bcel.classfile.Method;
import org.apache.bcel.classfile.Utility;
/**
* Convert methods and fields into HTML file.
*
* @version $Id$
* @author <A HREF="mailto:m.dahm@gmx.de">M. Dahm</A>
*
*/
final class MethodHTML implements org.apache.bcel.Constants {
private String class_name; // name of current class
private PrintWriter file; // file to write to
private ConstantHTML constant_html;
private AttributeHTML attribute_html;
MethodHTML(String dir, String class_name, Method[] methods, Field[] fields,
ConstantHTML constant_html, AttributeHTML attribute_html) throws IOException {
this.class_name = class_name;
this.attribute_html = attribute_html;
this.constant_html = constant_html;
file = new PrintWriter(new FileOutputStream(dir + class_name + "_methods.html"));
file.println("<HTML><BODY BGCOLOR=\"#C0C0C0\"><TABLE BORDER=0>");
file.println("<TR><TH ALIGN=LEFT>Access flags</TH><TH ALIGN=LEFT>Type</TH>"
+ "<TH ALIGN=LEFT>Field name</TH></TR>");
for (int i = 0; i < fields.length; i++) {
writeField(fields[i]);
}
file.println("</TABLE>");
file.println("<TABLE BORDER=0><TR><TH ALIGN=LEFT>Access flags</TH>"
+ "<TH ALIGN=LEFT>Return type</TH><TH ALIGN=LEFT>Method name</TH>"
+ "<TH ALIGN=LEFT>Arguments</TH></TR>");
for (int i = 0; i < methods.length; i++) {
writeMethod(methods[i], i);
}
file.println("</TABLE></BODY></HTML>");
file.close();
}
/**
* Print field of class.
*
* @param field field to print
* @exception java.io.IOException
*/
private void writeField( Field field ) throws IOException {
String type = Utility.signatureToString(field.getSignature());
String name = field.getName();
String access = Utility.accessToString(field.getAccessFlags());
Attribute[] attributes;
access = Utility.replace(access, " ", " ");
file.print("<TR><TD><FONT COLOR=\"#FF0000\">" + access + "</FONT></TD>\n<TD>"
+ Class2HTML.referenceType(type) + "</TD><TD><A NAME=\"field" + name + "\">" + name
+ "</A></TD>");
attributes = field.getAttributes();
// Write them to the Attributes.html file with anchor "<name>[<i>]"
for (int i = 0; i < attributes.length; i++) {
attribute_html.writeAttribute(attributes[i], name + "@" + i);
}
for (int i = 0; i < attributes.length; i++) {
if (attributes[i].getTag() == ATTR_CONSTANT_VALUE) { // Default value
String str = ((ConstantValue) attributes[i]).toString();
// Reference attribute in _attributes.html
file.print("<TD>= <A HREF=\"" + class_name + "_attributes.html#" + name + "@" + i
+ "\" TARGET=\"Attributes\">" + str + "</TD>\n");
break;
}
}
file.println("</TR>");
}
private final void writeMethod( Method method, int method_number ) throws IOException {
// Get raw signature
String signature = method.getSignature();
// Get array of strings containing the argument types
String[] args = Utility.methodSignatureArgumentTypes(signature, false);
// Get return type string
String type = Utility.methodSignatureReturnType(signature, false);
// Get method name
String name = method.getName(), html_name;
// Get method's access flags
String access = Utility.accessToString(method.getAccessFlags());
// Get the method's attributes, the Code Attribute in particular
Attribute[] attributes = method.getAttributes();
/* HTML doesn't like names like <clinit> and spaces are places to break
* lines. Both we don't want...
*/
access = Utility.replace(access, " ", " ");
html_name = Class2HTML.toHTML(name);
file.print("<TR VALIGN=TOP><TD><FONT COLOR=\"#FF0000\"><A NAME=method" + method_number
+ ">" + access + "</A></FONT></TD>");
file.print("<TD>" + Class2HTML.referenceType(type) + "</TD><TD>" + "<A HREF=" + class_name
+ "_code.html#method" + method_number + " TARGET=Code>" + html_name
+ "</A></TD>\n<TD>(");
for (int i = 0; i < args.length; i++) {
file.print(Class2HTML.referenceType(args[i]));
if (i < args.length - 1) {
file.print(", ");
}
}
file.print(")</TD></TR>");
// Check for thrown exceptions
for (int i = 0; i < attributes.length; i++) {
attribute_html.writeAttribute(attributes[i], "method" + method_number + "@" + i,
method_number);
byte tag = attributes[i].getTag();
if (tag == ATTR_EXCEPTIONS) {
file.print("<TR VALIGN=TOP><TD COLSPAN=2></TD><TH ALIGN=LEFT>throws</TH><TD>");
int[] exceptions = ((ExceptionTable) attributes[i]).getExceptionIndexTable();
for (int j = 0; j < exceptions.length; j++) {
file.print(constant_html.referenceConstant(exceptions[j]));
if (j < exceptions.length - 1) {
file.print(", ");
}
}
file.println("</TD></TR>");
} else if (tag == ATTR_CODE) {
Attribute[] c_a = ((Code) attributes[i]).getAttributes();
for (int j = 0; j < c_a.length; j++) {
attribute_html.writeAttribute(c_a[j], "method" + method_number + "@" + i + "@"
+ j, method_number);
}
}
}
}
}
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