at.chrl.rebellion.impl.javacompiler

Class ScriptCompilerImpl

java.lang.Object

at.chrl.rebellion.impl.javacompiler.ScriptCompilerImpl

All Implemented Interfaces:

ScriptCompiler

public class ScriptCompilerImpl
extends Object
implements ScriptCompiler

Wrapper for JavaCompiler api

Author:

SoulKeeper

Field Summary

Fields

Modifier and Type	Field and Description
protected JavaCompiler	javaCompiler Instance of JavaCompiler that will be used to compile classes
protected Iterable<File>	libraries List of jar files
protected ScriptClassLoader	parentClassLoader Parent classloader that has to be used for this compiler

Constructor Summary

Constructors

Constructor and Description
ScriptCompilerImpl() Creates new instance of JavaCompilerImpl.

Method Summary

Modifier and Type	Method and Description
protected Class<?>[]	classNamesToClasses(Collection<String> classNames, ScriptClassLoader cl) Reolves list of classes by their names
CompilationResult	compile(Iterable<File> compilationUnits) Compiles given files.
CompilationResult	compile(String[] classNames, String[] sourceCode) Compiles list of classes.
CompilationResult	compile(String className, String sourceCode) Compiles given class.
protected CompilationResult	doCompilation(Iterable<JavaFileObject> compilationUnits) Actually performs compilation.
String[]	getSupportedFileTypes() Only java files are supported by java compiler
void	setLibraires(Iterable<File> files) Sets jar files that should be used for this compiler as libraries
void	setParentClassLoader(ScriptClassLoader classLoader) Sets parent classLoader for this JavaCompilerImpl

Methods inherited from class java.lang.Object

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

Field Detail

javaCompiler

protected final JavaCompiler javaCompiler

Instance of JavaCompiler that will be used to compile classes

libraries

protected Iterable<File> libraries

List of jar files

parentClassLoader

protected ScriptClassLoader parentClassLoader

Parent classloader that has to be used for this compiler

Constructor Detail

ScriptCompilerImpl

public ScriptCompilerImpl()

Creates new instance of JavaCompilerImpl. If system compiler is not available - throws RuntimeExcetion

Throws:

RuntimeException - if compiler is not available

Method Detail

setParentClassLoader

public void setParentClassLoader(ScriptClassLoader classLoader)

Sets parent classLoader for this JavaCompilerImpl

Specified by:

setParentClassLoader in interface ScriptCompiler

Parameters:

classLoader - parent classloader

setLibraires

public void setLibraires(Iterable<File> files)

Sets jar files that should be used for this compiler as libraries

Specified by:

setLibraires in interface ScriptCompiler

Parameters:

files - list of jar files

compile

public CompilationResult compile(String className,
                                 String sourceCode)

Compiles given class.

Specified by:

compile in interface ScriptCompiler

Parameters:

className - Name of the class

sourceCode - source code

Returns:

CompilationResult with the class

Throws:

RuntimeException - if compilation failed with errros

compile

public CompilationResult compile(String[] classNames,
                                 String[] sourceCode)
                          throws IllegalArgumentException

Compiles list of classes. Amount of classNames must be equal to amount of sourceCodes

Specified by:

compile in interface ScriptCompiler

Parameters:

classNames - classNames

sourceCode - list of source codes

Returns:

CompilationResult with needed files

Throws:

IllegalArgumentException - if size of classNames not equals to size of sourceCodes

RuntimeException - if compilation failed with errros

compile

public CompilationResult compile(Iterable<File> compilationUnits)

Compiles given files. Files must be java sources.

Specified by:

compile in interface ScriptCompiler

Parameters:

compilationUnits - files to compile

Returns:

CompilationResult with classes

Throws:

RuntimeException - if compilation failed with errros

doCompilation

protected CompilationResult doCompilation(Iterable<JavaFileObject> compilationUnits)

Actually performs compilation. Compiler expects sources in UTF-8 encoding. Also compiler generates full debugging info for classes.

Parameters:

compilationUnits - Units that will be compiled

Returns:

CompilationResult with compiledClasses

Throws:

RuntimeException - if compilation failed with errros

classNamesToClasses

protected Class<?>[] classNamesToClasses(Collection<String> classNames,
                                         ScriptClassLoader cl)

Reolves list of classes by their names

Parameters:

classNames - names of the classes

cl - classLoader to use to resove classes

Returns:

resolved classes

Throws:

RuntimeException - if can't find class

getSupportedFileTypes

public String[] getSupportedFileTypes()

Only java files are supported by java compiler

Specified by:

getSupportedFileTypes in interface ScriptCompiler

Returns:

"java";