[Jython-checkins] CVS: jython/Tools/jythonc PathVFS.py,NONE,2.1 util.py,2.2,2.3

[Samuele P. <ped...@us...>]

Update of /cvsroot/jython/jython/Tools/jythonc
In directory slayer.i.sourceforge.net:/tmp/cvs-serv19222

Modified Files:
	util.py 
Added Files:
	PathVFS.py 
Log Message:
plain .class files retrieval/opening without (java1.1 for .class nop def) getResourceAsStream.
(new) global retrieval feature is mantained.



--- NEW FILE ---
import sys

from java import io
from java.util import zip


class JarVFS:
    def __init__(self,fname):
        self.zipfile = zip.ZipFile(fname)

    def open(self,id):
        ent = self.zipfile.getEntry(id)
        if ent:
##            print "path-jar-open: %s!%s" % (self.zipfile.name,id) # ?? dbg
            return self.zipfile.getInputStream(ent)
        else:
            return None

    def __repr__(self):
        return "<jar-vfs '%s'>" % self.zipfile.name
        
class DirVFS:
    def __init__(self,dir):
        if dir == '':
            self.pfx = None
        else:
            self.pfx = dir

    def open(self,id):
        f = io.File(self.pfx, id.replace('/',io.File.separator))
        if f.file:
##            print "path-open:",f # ?? dbg
            return io.BufferedInputStream(io.FileInputStream(f))
        return None

    def __repr__(self):
        return "<dir-vfs '%s'>" % self.pfx

class PathVFS:

    def add_vfs(self,fname):
        if fname == '':
            if not self.once.has_key(''):
                self.once['']=1
                self.vfs.append(DirVFS(''));
            return        
        file=io.File(fname);
        canon = file.canonicalPath
        if not self.once.has_key(canon):
            self.once[canon]=1
            try:
                if file.directory:
                    self.vfs.append(DirVFS(fname));
                else:
                    if file.exists and (fname.endswith('.jar') or fname.endswith('.zip')):
                        self.vfs.append(JarVFS(fname))
            except:
                pass
        

    def __init__(self,registry):
        self.once = {}
        self.vfs = []
        paths = registry.getProperty("python.packages.paths","java.class.path")
        paths = paths.split(',')
        # opt
        if "sun.boot.class.path" in paths: # ??pending strip boot class paths of other jvms?
            paths.remove("sun.boot.class.path")

        #paths.append("python.packages.fakepath")

        for p in paths:
            e = registry.getProperty(p)
            if e != None:
                path = e.split(io.File.pathSeparator)
                for name in path:
                    self.add_vfs(name)

        for name in sys.path:
            self.add_vfs(name)
            
        del self.once

    def open(self,id):
        for v in self.vfs:
            stream = v.open(id)
            if stream:
                return stream
        return None

Index: util.py
===================================================================
RCS file: /cvsroot/jython/jython/Tools/jythonc/util.py,v
retrieving revision 2.2
retrieving revision 2.3
diff -C2 -r2.2 -r2.3
*** util.py	2000/11/17 12:44:21	2.2
--- util.py	2000/11/24 08:11:44	2.3
***************
*** 31,37 ****
  import string
  
! from org.python.core import imp,Py
  
  from yapm import YaPM
  
  def findClass(c):
--- 31,38 ----
  import string
  
! from org.python.core import Py
  
  from yapm import YaPM
+ from PathVFS import PathVFS
  
  def findClass(c):
***************
*** 43,48 ****
      return string.join(classes,',')
  
  def openResource(res):
!     return imp.getSyspathJavaLoader().getResourceAsStream(res)
  
  _ypm = None
--- 44,54 ----
      return string.join(classes,',')
  
+ _path_vfs = None
+ 
  def openResource(res):
!     global _path_vfs
!     if not _path_vfs:
!         _path_vfs = PathVFS(sys.registry)    
!     return _path_vfs.open(res)
  
  _ypm = None