This class allows a JAR file to be read
from an input stream. It extends
java.util.ZipInputStream and is used much like
that class is used. To create a JarInputStream,
simply specify the InputStream from which to read.
If you do not want the JarInputStream to attempt
to verify any digital signatures contained in the JAR file, pass
false as the second argument to the
JarInputStream( ) constructor. The
JarInputStream( ) constructor first reads the JAR
manifest entry, if one exists. The manifest must be the first entry
in the JAR file. getManifest( ) returns the
Manifest object for the JAR file.
Once you have created a
JarInputStream, call getNextJarEntry(
) or getNextEnTRy( ) to obtain the
JarEntry or
java.util.zip.ZipEntry object that describes the
next entry in the JAR file. Then, call a read( )
method (including the inherited versions) to read the contents of
that entry. When the stream reaches the end of file, call
getNextJarEntry( ) again to start reading the next
entry in the file. When all entries have been read from the JAR file,
getNextJarEntry( ) and getNextEntry(
) return null.
public class JarInputStream extends java.util.zip.ZipInputStream {
// Public Constructors
public JarInputStream(java.io.InputStream in) throws java.io.IOException;
public JarInputStream(java.io.InputStream in, boolean verify) throws java.io.IOException;
// Public Instance Methods
public Manifest getManifest( );
public JarEntry getNextJarEntry( ) throws java.io.IOException;
// Public Methods Overriding ZipInputStream
public java.util.zip.ZipEntry getNextEntry( ) throws java.io.IOException;
public int read(byte[ ] b, int off, int len) throws java.io.IOException;
// Protected Methods Overriding ZipInputStream
protected java.util.zip.ZipEntry createZipEntry(String name);
}
