📄 methodhtml.java

📁 代码是一个分类器的实现,其中使用了部分weka的源代码。可以将项目导入eclipse运行
💻 JAVA
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package de.fub.bytecode.util;import de.fub.bytecode.classfile.*;import java.io.*;/** * Convert methods and fields into HTML file. * * @version $Id: MethodHTML.java,v 1.2 2001/05/09 09:26:57 dahm Exp $ * @author  <A HREF="http://www.berlin.de/~markus.dahm/">M. Dahm</A> *  */final class MethodHTML implements de.fub.bytecode.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&nbsp;flags</TH><TH ALIGN=LEFT>Type</TH>" +		 "<TH ALIGN=LEFT>Field&nbsp;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&nbsp;flags</TH>" +		 "<TH ALIGN=LEFT>Return&nbsp;type</TH><TH ALIGN=LEFT>Method&nbsp;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, " ", "&nbsp;");    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, " ", "&nbsp;");    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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