/*

 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

 *

 * This code is free software; you can redistribute it and/or modify it

 * under the terms of the GNU General Public License version 2 only, as

 * published by the Free Software Foundation.

 *

 * This code is distributed in the hope that it will be useful, but WITHOUT

 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

 * version 2 for more details (a copy is included in the LICENSE file that

 * accompanied this code).

 *

 * You should have received a copy of the GNU General Public License version

 * 2 along with this work; if not, write to the Free Software Foundation,

 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

 *

 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

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 */

/* @test

   @bug 4166799

   @summary Make sure URL-downloaded jar files (jar_cache files)

            will be deleted when VM exits.

   @build DeleteTempJar

   @run shell deletetempjar.sh

 */

import java.io.File;

import java.io.FileInputStream;

import java.io.FileOutputStream;

import java.io.OutputStream;

import java.net.InetAddress;

import java.net.InetSocketAddress;

import java.net.JarURLConnection;

import java.net.URL;

import java.util.jar.JarEntry;

import java.util.jar.JarFile;

import java.util.jar.JarOutputStream;

import com.sun.net.httpserver.*;

public class DeleteTempJar

{

    public static void realMain(String args[]) throws Exception

    {

        final File zf = File.createTempFile("deletetemp", ".jar");

        zf.deleteOnExit();

        try (FileOutputStream fos = new FileOutputStream(zf);

             JarOutputStream jos = new JarOutputStream(fos))

        {

            JarEntry je = new JarEntry("entry");

            jos.putNextEntry(je);

            jos.write("hello, world".getBytes("ASCII"));

        }

        HttpServer server = HttpServer.create(

                new InetSocketAddress((InetAddress) null, 0), 0);

        HttpContext context = server.createContext("/",

            new HttpHandler() {

                public void handle(HttpExchange e) {

                    try (FileInputStream fis = new FileInputStream(zf)) {

                        e.sendResponseHeaders(200, zf.length());

                        OutputStream os = e.getResponseBody();

                        byte[] buf = new byte[1024];

                        int count = 0;

                        while ((count = fis.read(buf)) != -1) {

                            os.write(buf, 0, count);

                        }

                    } catch (Exception ex) {

                        unexpected(ex);

                    } finally {

                        e.close();

                    }

                }

            });

        server.start();

        URL url = new URL("jar:http://localhost:"

                          + new Integer(server.getAddress().getPort()).toString()

                          + "/deletetemp.jar!/");

        JarURLConnection c = (JarURLConnection)url.openConnection();

        JarFile f = c.getJarFile();

        check(f.getEntry("entry") != null);

        System.out.println(f.getName());

        server.stop(0);

    }

    //--------------------- Infrastructure ---------------------------

    static volatile int passed = 0, failed = 0;

    static boolean pass() {passed++; return true;}

    static boolean fail() {failed++; Thread.dumpStack(); return false;}

    static boolean fail(String msg) {System.out.println(msg); return fail();}

    static void unexpected(Throwable t) {failed++; t.printStackTrace();}

    static boolean check(boolean cond) {if (cond) pass(); else fail(); return cond;}

    static boolean equal(Object x, Object y) {

        if (x == null ? y == null : x.equals(y)) return pass();

        else return fail(x + " not equal to " + y);}

    public static void main(String[] args) throws Throwable {

        try {realMain(args);} catch (Throwable t) {unexpected(t);}

        System.out.println("\nPassed = " + passed + " failed = " + failed);

        if (failed > 0) throw new AssertionError("Some tests failed");}

}