Java Doc for CachedJarsPackageManager.java in  » Testing » Marathon » org » python » core » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » Testing » Marathon » org.python.core 
Source Cross Reference  Class Diagram Java Document (Java Doc) 


java.lang.Object
   org.python.core.PackageManager
      org.python.core.CachedJarsPackageManager

All known Subclasses:   org.python.core.PathPackageManager,
CachedJarsPackageManager
abstract public class CachedJarsPackageManager extends PackageManager (Code)
Abstract package manager that gathers info about statically known classes from a set of jars. This info can be eventually cached. Off-the-shelf this class offers a local file-system based cache impl.

Inner Class :public static class JarXEntry extends Object



Method Summary
public  voidaddJarToPackages(java.net.URL jarurl)
     Gathers classes info from jar specified by jarurl URL.
public  voidaddJarToPackages(URL jarurl, boolean cache)
     Gathers classes info from jar specified by jarurl URL.
public  voidaddJarToPackages(File jarfile)
     Gathers classes info from jar specified by File jarfile.
public  voidaddJarToPackages(File jarfile, boolean cache)
     Gathers classes info from jar specified by File jarfile.
protected  voidcomment(String msg)
     Comment log method - hook.
protected  voiddebug(String msg)
     Debug log method - hook.
protected  voiddeleteCacheFile(String cachefile)
     Delete (invalidated) cache file from persistent storage - hook.
protected  booleanfilterByAccess(String name, int acc)
     Filter class by access perms helper method - hook.
protected  booleanfilterByName(String name, boolean pkg)
     Filter class/pkg by name helper method - hook.
protected  DataInputStreaminOpenCacheFile(String cachefile)
     Open cache file for reading from persistent storage - hook.
protected  DataInputStreaminOpenIndex()
     Open cache index for reading from persistent storage - hook.
protected  voidinitCache()
     Initializes cache.
protected  voidmessage(String msg)
     Message log method - hook.
protected  DataOutputStreamoutCreateCacheFile(JarXEntry entry, boolean create)
     Create/open cache file for rewriting back to persistent storage - hook. If create is false, cache file is supposed to exist and must be opened for rewriting, entry.cachefile is a valid cachefile id.
protected  DataOutputStreamoutOpenIndex()
     Open cache index for writing back to persistent storage - hook.
public  voidsaveCache()
     Write back cache index.
protected  booleanuseCacheDir(File aCachedir1)
     Initialize off-the-shelf (default) local file-system cache impl.
protected  voidwarning(String warn)
     Warning log method - hook.



Method Detail
addJarToPackages
public void addJarToPackages(java.net.URL jarurl)(Code)
Gathers classes info from jar specified by jarurl URL. Eventually just using previously cached info. Eventually updated info is not cached. Persistent cache storage access goes through inOpenCacheFile() and outCreateCacheFile().



addJarToPackages
public void addJarToPackages(URL jarurl, boolean cache)(Code)
Gathers classes info from jar specified by jarurl URL. Eventually just using previously cached info. Eventually updated info is (re-)cached if param cache is true. Persistent cache storage access goes through inOpenCacheFile() and outCreateCacheFile().



addJarToPackages
public void addJarToPackages(File jarfile)(Code)
Gathers classes info from jar specified by File jarfile. Eventually just using previously cached info. Eventually updated info is not cached. Persistent cache storage access goes through inOpenCacheFile() and outCreateCacheFile().



addJarToPackages
public void addJarToPackages(File jarfile, boolean cache)(Code)
Gathers classes info from jar specified by File jarfile. Eventually just using previously cached info. Eventually updated info is (re-)cached if param cache is true. Persistent cache storage access goes through inOpenCacheFile() and outCreateCacheFile().



comment
protected void comment(String msg)(Code)
Comment log method - hook. This default impl does nothing.
Parameters:
  msg - message text



debug
protected void debug(String msg)(Code)
Debug log method - hook. This default impl does nothing.
Parameters:
  msg - message text



deleteCacheFile
protected void deleteCacheFile(String cachefile)(Code)
Delete (invalidated) cache file from persistent storage - hook. This default impl is part of the off-the-shelf local file-system cache impl. Can be overriden.



filterByAccess
protected boolean filterByAccess(String name, int acc)(Code)
Filter class by access perms helper method - hook. The default impl. is used by CachedJarsPackageManager.addJarToPackages in order to filter out non-public classes. Should be used or overriden by derived classes too. Also to be used in CachedJarsPackageManager.doDir . Access perms can be read with CachedJarsPackageManager.checkAccess .
Parameters:
  name - class name
Parameters:
  acc - class access permissions as int true if name must be filtered out



filterByName
protected boolean filterByName(String name, boolean pkg)(Code)
Filter class/pkg by name helper method - hook. The default impl. is used by CachedJarsPackageManager.addJarToPackages in order to filter out classes whose name contains '$' (e.g. inner classes,...). Should be used or overriden by derived classes too. Also to be used in CachedJarsPackageManager.doDir .
Parameters:
  name - class/pkg name
Parameters:
  pkg - if true, name refers to a pkg true if name must be filtered out



inOpenCacheFile
protected DataInputStream inOpenCacheFile(String cachefile) throws IOException(Code)
Open cache file for reading from persistent storage - hook. This default impl is part of the off-the-shelf local file-system cache impl. Can be overriden.



inOpenIndex
protected DataInputStream inOpenIndex() throws IOException(Code)
Open cache index for reading from persistent storage - hook. Must Return null if this is absent. This default impl is part of the off-the-shelf local file-system cache impl. Can be overriden.



initCache
protected void initCache()(Code)
Initializes cache. Eventually reads back cache index. Index persistent storage is accessed through inOpenIndex().



message
protected void message(String msg)(Code)
Message log method - hook. This default impl does nothing.
Parameters:
  msg - message text



outCreateCacheFile
protected DataOutputStream outCreateCacheFile(JarXEntry entry, boolean create) throws IOException(Code)
Create/open cache file for rewriting back to persistent storage - hook. If create is false, cache file is supposed to exist and must be opened for rewriting, entry.cachefile is a valid cachefile id. If create is true, cache file must be created. entry.cachefile is a flat jarname to be used to produce a valid cachefile id (to be put back in entry.cachefile on exit). This default impl is part of the off-the-shelf local file-system cache impl. Can be overriden.



outOpenIndex
protected DataOutputStream outOpenIndex() throws IOException(Code)
Open cache index for writing back to persistent storage - hook. This default impl is part of the off-the-shelf local file-system cache impl. Can be overriden.



saveCache
public void saveCache()(Code)
Write back cache index. Index persistent storage is accessed through outOpenIndex().



useCacheDir
protected boolean useCacheDir(File aCachedir1)(Code)
Initialize off-the-shelf (default) local file-system cache impl. Must be called before CachedJarsPackageManager.initCache . cachedir is the cache repository directory, this is eventually created. Returns true if dir works.



warning
protected void warning(String warn)(Code)
Warning log method - hook. This default impl does nothing.
Parameters:
  warn - warning text



Fields inherited from org.python.core.PackageManager
public PyJavaPackage topLevelPackage(Code)(Java Doc)

Methods inherited from org.python.core.PackageManager
abstract public void addDirectory(java.io.File dir)(Code)(Java Doc)
abstract public void addJar(String jarfile, boolean cache)(Code)(Java Doc)
abstract public void addJarDir(String dir, boolean cache)(Code)(Java Doc)
protected PyList basicDoDir(PyJavaPackage jpkg, boolean instantiate, boolean exclpkgs)(Code)(Java Doc)
protected static int checkAccess(java.io.InputStream cstream) throws java.io.IOException(Code)(Java Doc)
abstract public PyList doDir(PyJavaPackage jpkg, boolean instantiate, boolean exclpkgs)(Code)(Java Doc)
abstract public Class findClass(String pkg, String name, String reason)(Code)(Java Doc)
public Class findClass(String pkg, String name)(Code)(Java Doc)
public PyObject lookupName(String name)(Code)(Java Doc)
public PyJavaPackage makeJavaPackage(String name, String classes, String jarfile)(Code)(Java Doc)
protected PyList merge(PyList list1, PyList list2)(Code)(Java Doc)
public void notifyPackageImport(String pkg, String name)(Code)(Java Doc)
abstract public boolean packageExists(String pkg, String name)(Code)(Java Doc)

Methods inherited from java.lang.Object
native protected Object clone() throws CloneNotSupportedException(Code)(Java Doc)
public boolean equals(Object obj)(Code)(Java Doc)
protected void finalize() throws Throwable(Code)(Java Doc)
final native public Class getClass()(Code)(Java Doc)
native public int hashCode()(Code)(Java Doc)
final native public void notify()(Code)(Java Doc)
final native public void notifyAll()(Code)(Java Doc)
public String toString()(Code)(Java Doc)
final native public void wait(long timeout) throws InterruptedException(Code)(Java Doc)
final public void wait(long timeout, int nanos) throws InterruptedException(Code)(Java Doc)
final public void wait() throws InterruptedException(Code)(Java Doc)

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