/*
 * ClassNames.java
 *
 * Created on March 12, 1999
 *
 * Modification Log:
 * 1.00 12th Mar 1999 Tanmay Original version.
 * 1.01 18th Mar 1999 Tanmay Throws IOexception instead of Exception
 * 1.02 12th Jun 1999 Tanmay Methods to verify and get summary text added.
 *-----------------------------------------------------------------------------------------
 * 10th Sep 2003 Tanmay Moved to SourceForge (http://classeditor.sourceforge.net)
 *-----------------------------------------------------------------------------------------
 * 1.03 28th Sep 2003 Tanmay Moved text summary method to visitor.
 *
 */

package classfile;

import java.io.DataInputStream;
import java.io.DataOutputStream;
import java.io.IOException;
import java.util.Vector;


/**
 * Class to handle class names.
 *<br><br>
 *
 * @author 	 Tanmay K. Mohapatra
 * @version 1.03, 28th Sep, 2003
 */

public class ClassNames {
 int iThisClass;
 int iSuperClass;
 public ConstantPoolInfo cpThisClass; //CONSTANT_Class
 public ConstantPoolInfo cpSuperClass; //CONSTANT_Class
 
 void read(DataInputStream dis, ConstantPool constPool) throws IOException {
 iThisClass = dis.readUnsignedShort();
 iSuperClass = dis.readUnsignedShort();
 cpThisClass = constPool.getPoolInfo(iThisClass);
 cpThisClass.addRef();
 cpSuperClass = constPool.getPoolInfo(iSuperClass);
 cpSuperClass.addRef();
 }
 
 void write(DataOutputStream dos, ConstantPool constPool) throws IOException {
 iThisClass = constPool.getIndexOf(cpThisClass);
 iSuperClass = constPool.getIndexOf(cpSuperClass);
 dos.writeShort(iThisClass);
 dos.writeShort(iSuperClass);
 }
 
 public boolean verify(Vector vectVerifyErrors) {
 boolean bRet = true;
 if ( (ConstantPoolInfo.CONSTANT_Class != cpThisClass.iTag) ||
 (ConstantPoolInfo.CONSTANT_Class != cpSuperClass.iTag) ) {
 vectVerifyErrors.addElement("ClassName and SuperClassName indexes should point to constant pool of type Class.");
 bRet = false;
 }
 if ( (0 == cpThisClass.refUTF8.sUTFStr.length()) || (0 == cpSuperClass.refUTF8.sUTFStr.length()) ) {
 vectVerifyErrors.addElement("Class and SuperClass names can not be empty.");
 bRet = false;
 }
 return bRet;
 }
 
 public String toString() {
 String sRetStr;
 sRetStr = "This class: " + cpThisClass + ", ";
 sRetStr += ("Super class: " + cpSuperClass);
 return sRetStr;
 }
 
 public String getThisClassName() {
 return Utils.convertClassStrToStr(cpThisClass.refUTF8.sUTFStr);
 }
 
 public String getSuperClassName() {
 return Utils.convertClassStrToStr(cpSuperClass.refUTF8.sUTFStr);
 }
 
 public void setThisClassName(String sNewStr) {
 cpThisClass.refUTF8.sUTFStr = Utils.convertStrToClassStr(sNewStr);
 }
 
 public void setSuperClassName(String sNewStr) {
 cpSuperClass.refUTF8.sUTFStr = Utils.convertStrToClassStr(sNewStr);
 }
}