Name: tb29552 Date: 06/23/97


2. SOURCE CODE
//#####################################################################
// PageDir.java :: a class which manages list of web page files
//
// History:
// original Roger Mosher May 22,1997
//#####################################################################
import java.util.Vector;
import java.awt.*;
import java.io.*;
 
class PageDir {

// instance variables
//%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
String dirPath; // full pathname of the directory
String fileExt; // page file extension (.crs/.wks)

int nEntries, curEntry; // number of entries, current entry
final int NOTFND = (-1);

byte dirtyBit; // if changed, needs to be rewritten
final int CLEAN = 0;
final int DIRTY = NOTFND;

List pageList;
Label msgArea;

// constructor
//%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
PageDir(String workDir,String type, List aList, Label msg) {

// Save args
//=========================================
dirPath = workDir;
fileExt = type;
pageList = aList;
msgArea = msg;

// Init some vars
//=========================================
nEntries = 0; curEntry = NOTFND;
dirtyBit = CLEAN;

// load the directory
//=========================================
loadDir();

} // end constructor PageDir(String, String, List);

// functions
//%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

public void loadDir() {
String dirName;
BufferedReader pageDirReader;

// construct directory name
//---------------------------------------------
if (fileExt == ".crs") dirName = dirPath+"Course.dir";
else dirName = dirPath+"Workshop.dir";

// open the directory for reading
//---------------------------------------------
try {
pageDirReader = new BufferedReader(new FileReader(dirName));
}
catch (FileNotFoundException e) {
msg.setText("ERROR: Could not open "+dirName);
return;
}

// read each entry into the list provided
//-----------------------------------------------
pageList.removeAll(); //start with an empty list

int cnt = 0;
String tmpstr;
try {
while(tmpStr=pageDirReader.readLine()) {
pageList.addItem(tmpStr);
}
} catch(IOException e) {
msg.setText("ERROR: Could not read "+dirName);
return;
}

pageDirReader.close();
} // end function loadDir


public void saveDir() {

} // end function saveDir


public void active(boolean On) {

} // end function active

public void insert(String name, boolean On) {

} // end function insert



} // end class PageDir

3,4: ERROR MESSAGE, TRACE INFO

C:\jdk1.1.1\bin\javac.exe -deprecation PageDir.java...
File Compiled...

--------------------------- Javac Output ---------------------------
sun.tools.java.CompilerError: addReference PageDir this
at sun.tools.java.ClassDefinition.addReference(ClassDefinition.java:1077)
at sun.tools.java.ClassDefinition.getReference(ClassDefinition.java:1072)
at sun.tools.tree.Context.noteReference(Context.java:308)
at sun.tools.tree.Context.makeReference(Context.java:329)
at sun.tools.tree.ThisExpression.checkValue(ThisExpression.java:76)
at sun.tools.tree.MethodExpression.checkValue(MethodExpression.java:275)
at sun.tools.tree.MethodExpression.check(MethodExpression.java:340)
at sun.tools.tree.ExpressionStatement.check(ExpressionStatement.java:46)
at sun.tools.tree.Statement.checkBlockStatement(Statement.java:120)
at sun.tools.tree.CompoundStatement.check(CompoundStatement.java:70)
at sun.tools.tree.Statement.checkMethod(Statement.java:98)
at sun.tools.javac.SourceField.check(SourceField.java:402)
at sun.tools.javac.SourceClass.checkFields(SourceClass.java:852)
at sun.tools.javac.SourceClass.checkInternal(SourceClass.java:615)
at sun.tools.javac.SourceClass.check(SourceClass.java:566)
at sun.tools.javac.Main.compile(Main.java:318)
at sun.tools.javac.Main.main(Main.java:473)
error: An error has occurred in the compiler; please file a bug report (http://java.sun.com/cgi-bin/bugreport.cgi).
1 error


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