Package kilim.tools

Class Javac

java.lang.Object

kilim.tools.Javac

public class Javac
extends Object

Simple utility class to invoke the java compiler.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	Javac.ClassPath	a collection of class path elements
private static class	Javac.SourceInfo

Field Summary

Fields

Modifier and Type	Field	Description
(package private) static Pattern	classNameRegexp
(package private) static Pattern	publicClassNameRegexp

Constructor Summary

Constructors

Constructor	Description
Javac()

Method Summary

Modifier and Type	Method	Description
(package private) static void	add(ArrayList<String> list, String... vals)
private static void	addClasses(List<ClassInfo> ret, String pkgName, File dir)
static List<ClassInfo>	compile(List<String> srcCodes)	Given a list of file-scope java code (equivalent to a .java file, including package and import declarations), compile() invokes javac to compile them, produce classfiles and return a list of invalid input: '<'className, byte[]> pairs.
private static void	deleteDir(File rootDir)
static Javac.ClassPath	getClassPath(Class start, ClassLoader end)	get the class path comprising the paths of URL class loaders ancestors
private static Javac.SourceInfo	getSourceInfo(String srcCode)
private static List<Javac.SourceInfo>	getSourceInfos(List<String> srcCodes)
private static File	getTmpDir()
private static byte[]	readFile(File f)
private static void	writeFile(File f, byte[] srcCode)

Methods inherited from class java.lang.Object

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

Field Details

publicClassNameRegexp

static Pattern publicClassNameRegexp

classNameRegexp

static Pattern classNameRegexp

Constructor Details

Javac

public Javac()

Method Details

compile

public static List<ClassInfo> compile(List<String> srcCodes)
                               throws IOException

Given a list of file-scope java code (equivalent to a .java file, including package and import declarations), compile() invokes javac to compile them, produce classfiles and return a list of invalid input: '<'className, byte[]> pairs. compile() dumps the source strings into their respective files, has javac compile them, then reads back the equivalent class files. The name of the source file is gleaned from the string itself; a string containing "public class Foo" is stored in tmpDir/Foo.java (where tmpDir is a temporary directory that's deleted after the compilation), and if no public class or interface is found, the name of the first class in the string is used. Note that the list of returned classes may be larger than list of sources Note: the java compiler api is ill-defined and this class should not be considered production. specifically, the classpath appears to depend on the execution environment, eg command line maven vs IDE vs the java command line

Parameters:

srcCodes - . List of strings.

Returns:

Listinvalid input: '<'className,byte[]>. className is fully qualified, and byte[] contains the bytecode of the class.

Throws:

IOException

add

static void add(ArrayList<String> list,
 String... vals)

getClassPath

public static Javac.ClassPath getClassPath(Class start,
 ClassLoader end)

get the class path comprising the paths of URL class loaders ancestors

Parameters:

start - start with the class loader that loaded this object, or null for this method's class

end - the last classloader to consider, or null to include everything up to but not including the system class loader

Returns:

the URLs

getSourceInfos

private static List<Javac.SourceInfo> getSourceInfos(List<String> srcCodes)

getSourceInfo

private static Javac.SourceInfo getSourceInfo(String srcCode)

getTmpDir

private static File getTmpDir()
                       throws IOException

Throws:

IOException

deleteDir

private static void deleteDir(File rootDir)

addClasses

private static void addClasses(List<ClassInfo> ret,
 String pkgName,
 File dir)
                        throws IOException

Throws:

IOException

readFile

private static byte[] readFile(File f)
                        throws IOException

Throws:

IOException

writeFile

private static void writeFile(File f,
 byte[] srcCode)
                       throws IOException

Throws:

IOException