org.apache.felix.framework.cache
Class BundleCache
Object
org.apache.felix.framework.cache.BundleCache
public class BundleCache
- extends Object
This class, combined with BundleArchive, and concrete
BundleRevision subclasses, implement the Felix bundle cache.
It is possible to configure the default behavior of this class by
passing properties into Felix' constructor. The configuration properties
for this class are (properties starting with "felix" are specific
to Felix, while those starting with "org.osgi" are standard OSGi
properties):
- org.osgi.framework.storage - Sets the directory to use as
the bundle cache; by default bundle cache directory is
felix-cache in the current working directory. The value
should be a valid directory name. The directory name can be either absolute
or relative. Relative directory names are relative to the current working
directory. The specified directory will be created if it does
not exist.
- felix.cache.rootdir - Sets the root directory to use to
calculate the bundle cache directory for relative directory names. If
org.osgi.framework.storage is set to a relative name, by
default it is relative to the current working directory. If this
property is set, then it will be calculated as being relative to
the specified root directory.
- felix.cache.bufsize - Sets the buffer size to be used by
the cache; the default value is 4096. The integer value of this
string provides control over the size of the internal buffer of the
disk cache for performance reasons.
For specific information on how to configure the Felix framework, refer
to the Felix framework usage documentation.
- See Also:
BundleArchive
Methods inherited from class Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
CACHE_BUFSIZE_PROP
public static final String CACHE_BUFSIZE_PROP
- See Also:
- Constant Field Values
CACHE_ROOTDIR_PROP
public static final String CACHE_ROOTDIR_PROP
- See Also:
- Constant Field Values
BUFSIZE
protected static transient int BUFSIZE
CACHE_DIR_NAME
protected static final transient String CACHE_DIR_NAME
- See Also:
- Constant Field Values
CACHE_ROOTDIR_DEFAULT
protected static final transient String CACHE_ROOTDIR_DEFAULT
- See Also:
- Constant Field Values
BUNDLE_DIR_PREFIX
protected static final transient String BUNDLE_DIR_PREFIX
- See Also:
- Constant Field Values
BundleCache
public BundleCache(Logger logger,
Map configMap)
delete
public void delete()
throws Exception
- Throws:
Exception
getArchives
public BundleArchive[] getArchives()
throws Exception
- Throws:
Exception
create
public BundleArchive create(long id,
String location,
InputStream is)
throws Exception
- Throws:
Exception
getSystemBundleDataFile
public File getSystemBundleDataFile(String fileName)
throws Exception
- Provides the system bundle access to its private storage area; this
special case is necessary since the system bundle is not really a
bundle and therefore must be treated in a special way.
- Parameters:
fileName
- the name of the file in the system bundle's private area.
- Returns:
- a File object corresponding to the specified file name.
- Throws:
Exception
- if any error occurs.