// **********************************************************************// // <copyright>// //  BBN Technologies//  10 Moulton Street//  Cambridge, MA 02138//  (617) 873-8000// //  Copyright (C) BBNT Solutions LLC. All rights reserved.// // </copyright>// **********************************************************************// // $Source: /cvs/distapps/openmap/src/openmap/com/bbn/openmap/io/JarInputReader.java,v $// $RCSfile: JarInputReader.java,v $// $Revision: 1.3.2.1 $// $Date: 2004/10/14 18:27:01 $// $Author: dietrick $// // **********************************************************************package com.bbn.openmap.io;import java.io.*;import java.net.*;import java.util.jar.*;import com.bbn.openmap.util.Debug;/** * An InputReader to handle entries in a Jar file. */public class JarInputReader extends StreamInputReader {    /** Where to go to hook up with a resource. */    protected URL inputURL = null;    protected JarFile jarFile = null;    protected String jarFileName = null;    protected String jarEntryName = null;    /**     * Create a JarInputReader win the path to a jar file, and the     * entry name. The entry name should be a path to the entry from     * the internal root of the jar file.     */    public JarInputReader(String jarFilePath, String jarEntryName)            throws IOException {        if (Debug.debugging("binaryfile")) {            Debug.output("JarInputReader created for " + jarEntryName + " in "                    + jarFilePath);        }        this.jarFileName = jarFilePath;        this.jarEntryName = jarEntryName;        reopen();        name = jarFilePath + "!" + jarEntryName;    }    /**     * Reset the InputStream to the beginning, by closing the current     * connection and reopening it.     */    public void reopen() throws IOException {        super.reopen();        Debug.message("binaryfile", "JarInputReader: reopening jarFile "                + jarFileName);        if (jarFile != null)            jarFile.close();        jarFile = null;        jarFile = new JarFile(URLDecoder.decode(jarFileName, "UTF-8"));        JarEntry entry = jarFile.getJarEntry(jarEntryName);        inputStream = jarFile.getInputStream(entry);        if (inputStream == null) {            Debug.error("JarInputReader: Problem getting input stream for "                    + jarEntryName + " in " + jarFileName);        }    }    /**     * Closes the underlying file     *      * @exception IOException Any IO errors encountered in accessing     *            the file     */    public void close() throws IOException {        jarFile.close();        super.close();    }}