edu.hm.hafner.analysis

Class FullTextFingerprint

java.lang.Object

edu.hm.hafner.analysis.FullTextFingerprint

public class FullTextFingerprint
extends Object

Creates a fingerprint of the specified issue using the source code at the affected line. The fingerprint is computed using the 1:1 content of a small number of lines before and after the affected line (see LINES_LOOK_AHEAD).

Author:

Ullrich Hafner

Constructor Summary

Constructors

Constructor and Description
FullTextFingerprint() Creates a new instance of FullTextFingerprint.

Method Summary

Modifier and Type	Method and Description
String	compute(String fileName, int line, Charset charset) Creates a fingerprint of the specified issue using the source code at the affected line.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

FullTextFingerprint

public FullTextFingerprint()

Creates a new instance of FullTextFingerprint.

Method Detail

compute

public String compute(String fileName,
                      int line,
                      Charset charset)
               throws IOException

Creates a fingerprint of the specified issue using the source code at the affected line. The fingerprint is computed using the 1:1 content of a small number of lines before and after the affected line (see LINES_LOOK_AHEAD).

Parameters:

fileName - the absolute path of the affected file

line - the line of the issue

charset - the encoding to be used when reading the affected file

Returns:

a fingerprint of the selected range of source code lines (if the file could not be read then the fingerprint actually is the hashcode of the filename)

Throws:

IOException - if the file could not be read