Class JavaSourceIClassLoader

java.lang.Object

org.codehaus.janino.IClassLoader

org.codehaus.janino.JavaSourceIClassLoader

public class JavaSourceIClassLoader
extends IClassLoader

This IClassLoader finds, scans and parses compilation units.

Notice that it does not compile them!

Field Summary

Fields

Modifier and Type	Field	Description
private ErrorHandler	compileErrorHandler
private static final Logger	LOGGER
private EnumSet<JaninoOption>	options
private Charset	sourceCharset
private ResourceFinder	sourceFinder
private int	sourceVersion
private int	targetVersion
private final Set<UnitCompiler>	unitCompilers	Collection of parsed compilation units.
private WarningHandler	warningHandler

Fields inherited from class IClassLoader

CTOR_java_lang_StringBuilder__java_lang_String, METH_java_lang_Enum__ordinal, METH_java_lang_Iterable__iterator, METH_java_lang_String__concat__java_lang_String, METH_java_lang_String__equals__java_lang_Object, METH_java_lang_String__hashCode, METH_java_lang_String__valueOf__boolean, METH_java_lang_String__valueOf__char, METH_java_lang_String__valueOf__double, METH_java_lang_String__valueOf__float, METH_java_lang_String__valueOf__int, METH_java_lang_String__valueOf__java_lang_Object, METH_java_lang_String__valueOf__long, METH_java_lang_StringBuilder__append__boolean, METH_java_lang_StringBuilder__append__char, METH_java_lang_StringBuilder__append__double, METH_java_lang_StringBuilder__append__float, METH_java_lang_StringBuilder__append__int, METH_java_lang_StringBuilder__append__java_lang_Object, METH_java_lang_StringBuilder__append__java_lang_String, METH_java_lang_StringBuilder__append__long, METH_java_lang_StringBuilder__toString, METH_java_lang_Throwable__addSuppressed, METH_java_util_Iterator__hasNext, METH_java_util_Iterator__next, TYPE_java_io_Serializable, TYPE_java_lang_annotation_Retention, TYPE_java_lang_AssertionError, TYPE_java_lang_Boolean, TYPE_java_lang_Byte, TYPE_java_lang_Character, TYPE_java_lang_Class, TYPE_java_lang_Cloneable, TYPE_java_lang_Double, TYPE_java_lang_Enum, TYPE_java_lang_Error, TYPE_java_lang_Exception, TYPE_java_lang_Float, TYPE_java_lang_Integer, TYPE_java_lang_Iterable, TYPE_java_lang_Long, TYPE_java_lang_Object, TYPE_java_lang_Override, TYPE_java_lang_RuntimeException, TYPE_java_lang_Short, TYPE_java_lang_String, TYPE_java_lang_StringBuilder, TYPE_java_lang_System, TYPE_java_lang_Throwable, TYPE_java_lang_Void, TYPE_java_util_Iterator

Constructor Summary

Constructors

Constructor	Description
JavaSourceIClassLoader(ResourceFinder sourceFinder, String sourceCharsetName, IClassLoader parentIClassLoader)

Method Summary

Modifier and Type	Method	Description
protected Java.AbstractCompilationUnit	findCompilationUnit(String className)	Finds the Java source file for the named class through the configured 'source resource finder' and parses it.
IClass	findIClass(String fieldDescriptor)	Finds a new IClass by descriptor and calls IClassLoader.defineIClass(IClass).
ResourceFinder	getSourceFinder()
Set<UnitCompiler>	getUnitCompilers()	Returns the set of UnitCompilers that were created so far.
EnumSet<JaninoOption>	options()
JavaSourceIClassLoader	options(EnumSet<JaninoOption> options)	Sets the options for all future compilations.
void	setCharacterEncoding(String sourceCharsetName)	Deprecated. Use setSourceCharset(Charset) instead
void	setCompileErrorHandler(ErrorHandler compileErrorHandler)
void	setSourceCharset(Charset sourceCharset)
void	setSourceFinder(ResourceFinder sourceFinder)
void	setSourceVersion(int version)
void	setTargetVersion(int version)
void	setWarningHandler(WarningHandler warningHandler)

Methods inherited from class IClassLoader

createJavacLikePathIClassLoader, defineIClass, getArrayIClass, getArrayIClass, getParentIClassLoader, loadIClass, postConstruct

Methods inherited from class Object

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

Field Details

LOGGER

private static final Logger LOGGER

sourceFinder

private ResourceFinder sourceFinder

sourceCharset

private Charset sourceCharset

options

private EnumSet<JaninoOption> options

unitCompilers

private final Set<UnitCompiler> unitCompilers

Collection of parsed compilation units.

sourceVersion

private int sourceVersion

targetVersion

private int targetVersion

compileErrorHandler

@Nullable
private ErrorHandler compileErrorHandler

warningHandler

@Nullable
private WarningHandler warningHandler

Constructor Details

JavaSourceIClassLoader

public JavaSourceIClassLoader(ResourceFinder sourceFinder,
 @Nullable
 String sourceCharsetName,
 @Nullable
 IClassLoader parentIClassLoader)

Method Details

setSourceVersion

public void setSourceVersion(int version)

setTargetVersion

public void setTargetVersion(int version)

getUnitCompilers

public Set<UnitCompiler> getUnitCompilers()

Returns the set of UnitCompilers that were created so far.

setSourceFinder

public void setSourceFinder(ResourceFinder sourceFinder)

Parameters:

sourceFinder - The source path

getSourceFinder

public ResourceFinder getSourceFinder()

setCharacterEncoding

@Deprecated
public void setCharacterEncoding(@Nullable
 String sourceCharsetName)

Deprecated.

Use setSourceCharset(Charset) instead

setSourceCharset

public void setSourceCharset(Charset sourceCharset)

Parameters:

sourceCharset - The charset that is used to read source files

setCompileErrorHandler

public void setCompileErrorHandler(@Nullable
 ErrorHandler compileErrorHandler)

See Also:

• UnitCompiler.setCompileErrorHandler(ErrorHandler)

setWarningHandler

public void setWarningHandler(@Nullable
 WarningHandler warningHandler)

See Also:

• Parser.setWarningHandler(WarningHandler)
• UnitCompiler.setCompileErrorHandler(ErrorHandler)

options

public EnumSet<JaninoOption> options()

Returns:

A reference to the currently effective compilation options; changes to it take effect immediately

options

public JavaSourceIClassLoader options(EnumSet<JaninoOption> options)

Sets the options for all future compilations.

findIClass

@Nullable
public IClass findIClass(String fieldDescriptor)
                  throws ClassNotFoundException

Description copied from class: IClassLoader

Finds a new IClass by descriptor and calls IClassLoader.defineIClass(IClass).

Similar ClassLoader.findClass(java.lang.String), this method must

• Get an IClass object from somewhere for the given type
• Call IClassLoader.defineIClass(IClass) with that IClass object as the argument
• Return the IClass object

The format of a descriptor is defined in JVMS 4.3.2. Typical descriptors are:

• I (Integer)
• Lpkg1/pkg2/Clazz; (Class declared in package)
• Lpkg1/pkg2/Outer$Inner; Member class

Notice that this method is never called for array types.

Notice that this method is never called from more than one thread at a time. In other words, implementations of this method need not be thread-safe.

Specified by:

findIClass in class IClassLoader

Parameters:

fieldDescriptor - Field descriptor of the IClass to load, e.g. "Lpkg1/pkg2/Outer$Inner;"

Returns:

null if a class with that descriptor could not be found

Throws:

ClassNotFoundException - An exception was raised while loading the IClass

findCompilationUnit

@Nullable
protected Java.AbstractCompilationUnit findCompilationUnit(String className)
                                                    throws IOException,
CompileException

Finds the Java source file for the named class through the configured 'source resource finder' and parses it.

Returns:

null iff the source file could not be found

Throws:

IOException

CompileException