Every JAR file produced by this engine will include the string "PACK200" as a zip file comment. This allows a deployer to detect if a JAR archive was packed and unpacked.
Note: Unless otherwise noted, passing a null argument to a constructor or method in this class will cause a NullPointerException to be thrown.
This version of the unpacker is compatible with all previous versions.
|String||KEEP||The string "keep", a possible value for certain properties.|
|String||TRUE||The string "true", a possible value for certain properties.|
|String||FALSE||The string "false", a possible value for certain properties.|
|String||DEFLATE_HINT||Property indicating that the unpacker should ignore all transmitted values for DEFLATE_HINT, replacing them by the given value, #TRUE or #FALSE . The default value is the special string #KEEP , which asks the unpacker to preserve all transmitted deflation hints.|
|String||PROGRESS||The unpacker's progress as a percentage, as periodically
updated by the unpacker.
Values of 0 - 100 are normal, and -1 indicates a stall.
Observe this property with a PropertyChangeListener .
At a minimum, the unpacker must set progress to 0 at the beginning of a packing operation, and to 100 at the end.
|Method from java.util.jar.Pack200$Unpacker Summary:|
|addPropertyChangeListener, properties, removePropertyChangeListener, unpack, unpack|
|Method from java.util.jar.Pack200$Unpacker Detail:|
public void addPropertyChangeListener(PropertyChangeListener listener)
public SortedMap<String, String> properties()
The property map may contain pre-defined implementation specific and default properties. Users are encouraged to read the information and fully understand the implications, before modifying pre-existing properties.
Implementation specific properties are prefixed with a package name associated with the implementor, beginning with com. or a similar prefix. All property names beginning with pack. and unpack. are reserved for use by this API.
Unknown properties may be ignored or rejected with an unspecified error, and invalid entries may cause an unspecified error to be thrown.
public void removePropertyChangeListener(PropertyChangeListener listener)
public void unpack(InputStream in, JarOutputStream out) throws IOException
Closes its input but not its output. (The output can accumulate more elements.)
public void unpack(File in, JarOutputStream out) throws IOException
Does not close its output. (The output can accumulate more elements.)