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package org.eclipse.jdt.internal.core;
/*
* (c) Copyright IBM Corp. 2000, 2001.
* All Rights Reserved.
*/
import org.eclipse.jdt.internal.compiler.env.ICompilationUnit;
import java.io.*;
/**
* A basic implementation of <code>ICompilationUnit</code>
* for use in the <code>SourceMapper</code>./
* @see ICompilationUnit
*/
public class BasicCompilationUnit implements ICompilationUnit {
protected char[] contents;
protected char[] fileName;
protected char[] mainTypeName;
public BasicCompilationUnit(char[] contents, String fileName) {
this.contents = contents;
this.fileName = fileName.toCharArray();
int start = fileName.lastIndexOf("/"/*nonNLS*/) + 1;
if (start == 0 || start < fileName.lastIndexOf("\\"/*nonNLS*/))
start = fileName.lastIndexOf("\\"/*nonNLS*/) + 1;
int end = fileName.lastIndexOf("."/*nonNLS*/);
if (end == -1)
end = fileName.length();
this.mainTypeName = fileName.substring(start, end).toCharArray();
}
public char[] getContents() {
if (contents != null)
return contents; // answer the cached source
// otherwise retrieve it
BufferedReader reader = null;
try {
File file = new File(new String(fileName));
reader = new BufferedReader(new FileReader(file));
int length;
char[] contents = new char[length = (int) file.length()];
int len = 0;
int readSize = 0;
while ((readSize != -1) && (len != length)) {
// See PR 1FMS89U
// We record first the read size. In this case len is the actual read size.
len += readSize;
readSize = reader.read(contents, len, length - len);
}
reader.close();
// See PR 1FMS89U
// Now we need to resize in case the default encoding used more than one byte for each
// character
if (len != length)
System.arraycopy(contents, 0, (contents = new char[len]), 0, len);
return contents;
} catch (FileNotFoundException e) {
} catch (IOException e) {
if (reader != null) {
try {
reader.close();
} catch(IOException ioe) {
}
}
};
return new char[0];
}
public char[] getFileName() {
return fileName;
}
public char[] getMainTypeName() {
return mainTypeName;
}
public String toString(){
return "CompilationUnit: "/*nonNLS*/+new String(fileName);
}
}
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