Package 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 Details

    • JGrep

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

    • JGrep

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

  • Method Details

    • main

      public static void main(String[] args)
      Command line interface.

    • getClassFile

      public static File getClassFile(String className, File sourceFile, File optionalDestinationDirectory)
      Construct 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"