org.codehaus.janino.tools

Class JGrep

java.lang.Object

org.codehaus.janino.tools.JGrep

public class JGrep
extends Object

Reads a set of compilation units from the file system and searches it for specific Java constructs, e.g. invocations of a particular method. Usage:

 java org.codehaus.janino.JGrep \
           [ -dirs directory-name-patterns ] \
           [ -files file-name-patterns ] \
           { directory-path } \
           -method-invocation class.method(arg-types)
 java org.codehaus.janino.JGrep -help
 

If "-dirs" is not given, then all directory-pathes are scanned for files. The directory-name-patterns work as described in StringPattern.parseCombinedPattern(String).

If "-files" is not given, then all files ending in ".java" are read. The file-name-patterns work as described in StringPattern.parseCombinedPattern(String).

Constructor Summary

Constructors

Constructor and Description
JGrep(File[] classPath, File[] optionalExtDirs, File[] optionalBootClassPath, String optionalCharacterEncoding, boolean verbose)
JGrep(IClassLoader iClassLoader, String optionalCharacterEncoding, boolean verbose)

Method Summary

Modifier and Type	Method and Description
static File	getClassFile(String className, File sourceFile, File optionalDestinationDirectory) Constructs the name of a file that could store the byte code of the class with the given name.
static void	main(String[] args) Command line interface.

Methods inherited from class java.lang.Object

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

Constructor Detail

JGrep

public JGrep(File[] classPath,
             @Nullable
             File[] optionalExtDirs,
             @Nullable
             File[] optionalBootClassPath,
             @Nullable
             String optionalCharacterEncoding,
             boolean verbose)

JGrep

public JGrep(IClassLoader iClassLoader,
             @Nullable
             String optionalCharacterEncoding,
             boolean verbose)

Method Detail

main

public static void main(String[] args)

Command line interface.

getClassFile

public static File getClassFile(String className,
                                File sourceFile,
                                @Nullable
                                File optionalDestinationDirectory)

Constructs the name of a file that could store the byte code of the class with the given name.

If optionalDestinationDirectory is non-null, the returned path is the optionalDestinationDirectory plus the package of the class (with dots replaced with file separators) plus the class name plus ".class".

Example:

 "destdir/pkg1/pkg2/Outer$Inner.class"
 

If optionalDestinationDirectory is null, the returned path is the directory of the sourceFile plus the class name plus ".class".

Example:

 "srcdir/Outer$Inner.class"
 

Parameters:

className - E.g. "pkg1.pkg2.Outer$Inner"

sourceFile - E.g. "srcdir/Outer.java"

optionalDestinationDirectory - E.g. "destdir"