"

 COPYRIGHT (c) 1996-2011 by Claus Gittinger

 COPYRIGHT (c) 2010-2011 by Jan Vrany, Jan Kurs and Marcel Hlopko

                            SWING Research Group, Czech Technical University in Prague

 Parts of the code written by Claus Gittinger are under following

 license:

 This software is furnished under a license and may be used

 only in accordance with the terms of that license and with the

 inclusion of the above copyright notice.   This software may not

 be provided or otherwise made available to, or used by, any

 other person.  No title to or ownership of the software is

 hereby transferred.

 Parts of the code written at SWING Reasearch Group [1] are MIT licensed:

 Permission is hereby granted, free of charge, to any person

 obtaining a copy of this software and associated documentation

 files (the 'Software'), to deal in the Software without

 restriction, including without limitation the rights to use,

 copy, modify, merge, publish, distribute, sublicense, and/or sell

 copies of the Software, and to permit persons to whom the

 Software is furnished to do so, subject to the following

 conditions:

 The above copyright notice and this permission notice shall be

 included in all copies or substantial portions of the Software.

 THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND,

 EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES

 OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND

 NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT

 HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,

 WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING

 FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR

 OTHER DEALINGS IN THE SOFTWARE.

 [1] Code written at SWING Research Group contain a signature

     of one of the above copright owners.

"

"{ Package: 'stx:libjava' }"

Object subclass:#Java

	instanceVariableNames:''

	poolDictionaries:''

	category:'Languages-Java-Support'

!

!Java class methodsFor:'documentation'!

copyright

"

 COPYRIGHT (c) 1996-2011 by Claus Gittinger

 COPYRIGHT (c) 2010-2011 by Jan Vrany, Jan Kurs and Marcel Hlopko

                            SWING Research Group, Czech Technical University in Prague

 Parts of the code written by Claus Gittinger are under following

 license:

 This software is furnished under a license and may be used

 only in accordance with the terms of that license and with the

 inclusion of the above copyright notice.   This software may not

 be provided or otherwise made available to, or used by, any

 other person.  No title to or ownership of the software is

 hereby transferred.

 Parts of the code written at SWING Reasearch Group [1] are MIT licensed:

 Permission is hereby granted, free of charge, to any person

 obtaining a copy of this software and associated documentation

 files (the 'Software'), to deal in the Software without

 restriction, including without limitation the rights to use,

 copy, modify, merge, publish, distribute, sublicense, and/or sell

 copies of the Software, and to permit persons to whom the

 Software is furnished to do so, subject to the following

 conditions:

 The above copyright notice and this permission notice shall be

 included in all copies or substantial portions of the Software.

 THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND,

 EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES

 OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND

 NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT

 HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,

 WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING

 FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR

 OTHER DEALINGS IN THE SOFTWARE.

 [1] Code written at SWING Research Group contain a signature

     of one of the above copright owners.

"

!

documentation

"Java class is main entry point or - you might say -

facade to the Java world inside Smalltalk. It also 

serves as configuration entity - e.g. controlling 

classpath, source paths, etc. Java class is responsible

for correct initialization and glueing other classes.

"

! !

!Java class methodsFor:'accessing'!

classForName:aString

    "return a javaClass - either existing or loaded"

    |cls loader|

    cls := self at:aString.

    cls isNil ifTrue:[

        FailedToLoadClasses notNil ifTrue:[

            (FailedToLoadClasses includes:aString) ifTrue:[

"/                ('JAVA [info]: class loading already failed: ' , aString) infoPrintCR.

                ^ nil

            ]

        ].

        "/('JAVA [info]: late class loading: ' , aString) infoPrintCR.

        loader := JavaClassReader classLoaderQuerySignal query.

        loader isNil ifTrue:[

            "/ load using default (ST/X) loader

            cls := JavaClassReader loadClass:aString.

        ] ifFalse:[

            "/ load using a Java class loader

"/            classURL := Java as_URL:('file:' , aString , '.class').

"/            loader loadClass:classURL.

            loader perform:#'loadClass(Ljava/lang/String;)Ljava/lang/Class;'

                with:(Java as_String:(aString copyReplaceAll:$/ with:$.)).

            cls := self at:aString.

        ].

        cls isNil ifTrue:[

            FailedToLoadClasses isNil ifTrue:[

                FailedToLoadClasses := Set new.

            ].

            FailedToLoadClasses add:aString

        ]

    ].

    ^ cls

    "Created: / 18-03-1997 / 16:45:57 / cg"

    "Modified: / 27-04-1998 / 15:00:52 / cg"

    "Modified: / 18-08-2011 / 19:30:50 / jv"

    "Modified: / 31-08-2011 / 22:16:12 / Jan Vrany <jan.vrany@fit.cvut.cz>"

!

classNamed:aString

    ^ self at:aString

!

intern:aJavaString

    |stString internedString|

    stString := self as_ST_String:aJavaString.

    internedString := InternedStrings at:stString ifAbsent:nil.

    internedString isNil ifTrue:[

        InternedStrings at:stString put:aJavaString.

        internedString := aJavaString

    ].

    ^ internedString

!

java_lang_Class

    Java_lang_Class isNil ifTrue:[

        Java_lang_Class := self at:'java.lang.Class'

    ].

    ^ Java_lang_Class

    "Created: 26.3.1997 / 13:42:59 / cg"

    "Modified: 26.3.1997 / 13:46:24 / cg"

!

java_lang_String

    Java_lang_String isNil ifTrue:[

        Java_lang_String := self at:'java.lang.String'

    ].

    ^ Java_lang_String

    "Created: 26.3.1997 / 13:43:17 / cg"

    "Modified: 26.3.1997 / 13:50:21 / cg"

!

prettyPrintStyle

    ^ PrettyPrintStyle

    "Created: 1.8.1997 / 10:37:57 / cg"

!

release

    ^Release

    "Created: / 22-11-2010 / 12:38:23 / Jan Vrany <jan.vrany@fit.cvut.cz>"

!

release: aJavaRelease

    Release := aJavaRelease.

    "

        Java release: JavaRelease openJDK6. 

        Java release: JavaRelease sunJDK6. 

    "

    "Created: / 22-11-2010 / 12:38:04 / Jan Vrany <jan.vrany@fit.cvut.cz>"

    "Modified: / 30-11-2010 / 11:54:33 / Jan Vrany <jan.vrany@fit.cvut.cz>"

!

systemPropertyAt:key put:something

    JavaVM systemProperties at:key put:something

    "Created: / 9.1.1999 / 14:49:35 / cg"

!

threads

    Threads isNil ifTrue:[

        Threads := WeakIdentityDictionary new.

    ].

    ^ Threads

    "Created: 26.8.1997 / 19:53:57 / cg"

    "Modified: 26.8.1997 / 19:55:27 / cg"

! !

!Java class methodsFor:'accessing paths'!

addToClassPath:aPath

    | path |

    path := aPath asFilename.

    (aPath asString includes: $*) ifTrue:[

        self addToClassPathFilesMatching: path baseName

             in: path directoryName.

    ] ifFalse:[

        (ClassPath includes:aPath asString) ifFalse:[

            ClassPath add:aPath asString.

            self addToClassPathInRuntime:aPath.

            FailedToLoadClasses := nil

        ]

    ]

    "Created: / 01-08-1997 / 21:10:07 / cg"

    "Modified: / 17-09-1998 / 20:43:55 / cg"

    "Modified: / 07-08-2011 / 14:06:46 / Jan Vrany <jan.vrany@fit.cvut.cz>"

!

addToClassPathFilesMatching: pattern in: path

    | dir |

    dir := path asFilename.

    dir directoryContents do:

        [:fname|

        (fname matches: pattern) ifTrue:

            [| p |

            p := (dir / fname) pathName.

            (ClassPath includes:p) ifFalse:

                [ClassPath add:p.

                self addToClassPathInRuntime:p.

                FailedToLoadClasses := nil]]].

    "Created: / 20-12-2010 / 17:26:18 / Jan Vrany <jan.vrany@fit.cvut.cz>"

!

addToClassPathInRuntime:aPath

    | path file url scl |

    "Java might not be loaded/or initialized, in this case

     there is no no need to inform java about new entry in classpath"

    JavaVM booted ifFalse:[^self].

    scl := (Java classForName:'java.lang.ClassLoader') instVarNamed: #scl.

    scl ifNil:[

        scl := (Java classForName:'java.lang.ClassLoader') perform: #'getSystemClassLoader()Ljava/lang/ClassLoader;'.

    ].

    path := Java as_String: aPath asString.        

    file := (Java at:'java.io.File') new perform: #'<init>(Ljava/lang/String;)V' with: path; yourself.

    url := file perform: #'toURL()Ljava/net/URL;'.

    scl perform: #'addURL(Ljava/net/URL;)V' with: url.

    "Created: / 01-08-1997 / 21:10:07 / cg"

    "Modified: / 17-09-1998 / 20:43:55 / cg"

    "Created: / 07-08-2011 / 14:01:48 / Jan Vrany <jan.vrany@fit.cvut.cz>"

!

addToSourcePath:aPath

    SourceDirectories ifNil:[SourceDirectories := OrderedCollection new].

    (SourceDirectories includes:aPath) ifFalse:[

        SourceDirectories add:aPath

    ]

    "Created: / 02-08-1997 / 14:12:31 / cg"

    "Modified: / 06-02-2011 / 22:51:26 / Jan Vrany <jan.vrany@fit.cvut.cz>"

!

cacheDirectory

    CacheDirectory ifNil:[

        CacheDirectory := Filename homeDirectory / '.smalltalk' / 'libjava' / 'caches' /

            (((Smalltalk at:#stx_libjava) svnRepositoryUrlBase copyReplaceAll:$/ with:$_) replaceAll:$: with:$_)

    ].

    ^CacheDirectory

    "Created: / 08-04-2011 / 15:02:18 / Jan Vrany <jan.vrany@fit.cvut.cz>"

    "Modified: / 08-04-2011 / 16:58:52 / Jan Vrany <jan.vrany@fit.cvut.cz>"

!

classPath

    CLASSPATH := ((OperatingSystem getEnvironment: 'CLASSPATH') ? '') 

        tokensBasedOn: OperatingSystem pathSeparator.

    ^

        "for testing only"

        "/Release classPath,

        ),

        (ClassPath ? #()),

            CLASSPATH

    "

        Java classPath

    "

    "Created: / 07-02-1997 / 19:23:45 / cg"

!

classPath:aCollectionOfPaths

    ClassPath := aCollectionOfPaths asOrderedCollection.

    FailedToLoadClasses := nil

    "Created: / 7.2.1997 / 19:23:45 / cg"

    "Modified: / 17.9.1998 / 20:44:09 / cg"

!

effectiveClassPath

    "

    Java effectiveClassPath

    "

    "Created: / 22-11-2010 / 13:03:54 / Jan Vrany <jan.vrany@fit.cvut.cz>"

    "Modified: / 17-01-2011 / 09:44:16 / kursjan <kursjan@fit.cvut.cz>"

!

effectiveSourceDirectories

    ^Release sourcePath ,

        (SourceDirectories ? #())

    "

        Java effectiveSourceDirectories 

    "

    "Created: / 30-11-2010 / 11:53:42 / Jan Vrany <jan.vrany@fit.cvut.cz>"

!

excludedClassPath

    ^ ExcludedClassPath

    "Modified: / 7.2.1997 / 19:23:55 / cg"

    "Created: / 27.1.1998 / 21:57:13 / cg"

!

isExcludedFromClassPath:fileName

    |nm|

    nm := fileName asFilename pathName.

    ExcludedClassPath do:[:excludedPath |

        (nm startsWith:excludedPath) ifTrue:[^ true].

    ].

    ^ false

    "Created: / 27.1.1998 / 22:00:40 / cg"

!

javaHome

    ^ JavaHome ifNil:[Release javaHome]

    "Created: / 06-08-1997 / 00:53:19 / cg"

    "Modified: / 22-11-2010 / 12:39:19 / Jan Vrany <jan.vrany@fit.cvut.cz>"

!

javaHome:aPath

    <resource: #obsolete>

    self obsoleteMethodWarning: 'javaHome is now controlled by java release'.

    JavaHome := aPath

    "Created: / 06-08-1997 / 00:53:23 / cg"

    "Modified: / 22-11-2010 / 12:40:00 / Jan Vrany <jan.vrany@fit.cvut.cz>"

!

newJavaHome:newJavaHome

    self javaHome:newJavaHome.

!

removeFromClassPath:aPath

    (ClassPath includes:aPath) ifTrue:[

        ClassPath remove:aPath

    ]

    "Modified: 7.2.1997 / 19:23:55 / cg"

    "Created: 1.8.1997 / 21:10:21 / cg"

!

removeFromSourcePath:aPath

    (SourceDirectories includes:aPath) ifTrue:[

        SourceDirectories remove:aPath

    ]

    "Modified: 7.2.1997 / 19:23:55 / cg"

    "Created: 2.8.1997 / 14:13:01 / cg"

!

sourceDirectories

    ^ SourceDirectories

!

sourceDirectories:aCollectionOfPaths

    SourceDirectories := aCollectionOfPaths asOrderedCollection

    "

     Java

        sourceDirectories:#(

                            '/phys/ibm3/java/src'

                           )

    "

!

sourcePath

    ^ SourceDirectories

    "Created: / 16.1.1998 / 13:26:55 / cg"

! !

!Java class methodsFor:'change & update'!

update: what with: param from: sender

    what == #restarted ifTrue:[

        self reinitialize.

    ]

    "Created: / 14-12-2010 / 21:00:09 / Jan Vrany <jan.vrany@fit.cvut.cz>"

! !

!Java class methodsFor:'class initialization'!

initAllClasses

    |system|

    FailedToLoadClasses := nil.

    self initAllStaticFields.

    system := self classForName:'java.lang.System'.

    system isInitialized ifFalse:[

        self initSystemClass.

    ].