edu.umd.cs.findbugs.ba

Class SourceFile

java.lang.Object

edu.umd.cs.findbugs.ba.SourceFile

public class SourceFile
extends Object

Cached data for a source file. Contains a map of line numbers to byte offsets, for quick searching of source lines.

Author:

David Hovemeyer

See Also:

SourceFinder

Constructor Summary

Constructors

Constructor and Description
SourceFile(SourceFileDataSource dataSource) Constructor.

Method Summary

Methods

Modifier and Type	Method and Description
void	addLineOffset(int offset) Add a source line byte offset.
String	getFullFileName() Get the full path name of the source file (with directory).
InputStream	getInputStream() Get an InputStream on data.
InputStream	getInputStreamFromOffset(int offset) Get an InputStream on data starting at given offset.
long	getLastModified()
int	getLineOffset(int line) Get the byte offset in the data for a source line.

Methods inherited from class java.lang.Object

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

Constructor Detail

SourceFile

public SourceFile(SourceFileDataSource dataSource)

Constructor.

Parameters:

dataSource - the SourceFileDataSource object which will provide the data of the source file

Method Detail

getFullFileName

public String getFullFileName()

Get the full path name of the source file (with directory).

getInputStream

public InputStream getInputStream()
                           throws IOException

Get an InputStream on data.

Returns:

an InputStream on the data in the source file, starting from given offset

Throws:

IOException

getInputStreamFromOffset

public InputStream getInputStreamFromOffset(int offset)
                                     throws IOException

Get an InputStream on data starting at given offset.

Parameters:

offset - the start offset

Returns:

an InputStream on the data in the source file, starting at the given offset

Throws:

IOException

addLineOffset

public void addLineOffset(int offset)

Add a source line byte offset. This method should be called for each line in the source file, in order.

Parameters:

offset - the byte offset of the next source line

getLineOffset

public int getLineOffset(int line)

Get the byte offset in the data for a source line. Note that lines are considered to be zero-index, so the first line in the file is numbered zero.

Parameters:

line - the line number

Returns:

the byte offset in the file's data for the line, or -1 if the line is not valid

getLastModified

public long getLastModified()