Example usage for java.io InputStream close

List of usage examples for java.io InputStream close

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Introduction

In this page you can find the example usage for java.io InputStream close.

Prototype

public void close() throws IOException

Source Link

Document

Closes this input stream and releases any system resources associated with the stream.

Usage

From source file:Main.java

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

    int i;/*  w  w  w .j a va 2s  . co m*/

    // new input stream created
    InputStream is = new FileInputStream("C://test.txt");

    System.out.println("Characters printed:");

    // reads till the end of the stream
    while ((i = is.read()) != -1) {
        // converts integer to character
        char c = (char) i;

        System.out.print(c);
    }
    is.close();
}

From source file:com.music.tools.SongDBDownloader.java

public static void main(String[] args) throws Exception {
    HttpClient client = new DefaultHttpClient();

    //        HttpHost proxy = new HttpHost("localhost", 8888);
    //        client.getParams().setParameter(ConnRoutePNames.DEFAULT_PROXY, proxy);

    HttpContext ctx = new BasicHttpContext();

    HttpUriRequest req = new HttpGet(
            "http://www.hooktheory.com/analysis/view/the-beatles/i-want-to-hold-your-hand");
    client.execute(req, ctx);/*from   www .  jav  a2s  .c  o m*/
    req.abort();

    List<String> urls = getSongUrls(
            "http://www.hooktheory.com/analysis/browseSearch?sQuery=&sOrderBy=views&nResultsPerPage=525&nPage=1",
            client, ctx);
    List<List<? extends NameValuePair>> paramsList = new ArrayList<>(urls.size());
    for (String songUrl : urls) {
        paramsList.addAll(getSongParams(songUrl, client, ctx));
    }
    int i = 0;
    for (List<? extends NameValuePair> params : paramsList) {

        HttpPost request = new HttpPost("http://www.hooktheory.com/songs/getXML");

        request.setHeader("User-Agent",
                "Mozilla/5.0 (Windows NT 6.1; WOW64; rv:15.0) Gecko/20100101 Firefox/15.0.1");
        request.setHeader("Accept", "text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8");
        request.setHeader("Accept-Encoding", "gzip, deflate");
        request.setHeader("Accept-Language", "en,en-us;q=0.7,bg;q=0.3");
        request.setHeader("Content-Type", "application/x-www-form-urlencoded");
        request.setHeader("Origin", "http://www.hooktheory.com");
        request.setHeader("Referer",
                URLEncoder.encode("http://www.hooktheory.com/swf/DNALive Version 1.0.131.swf", "utf-8"));

        HttpEntity entity = new UrlEncodedFormEntity(params);
        request.setEntity(entity);

        try {
            HttpResponse response = client.execute(request, ctx);
            if (response.getStatusLine().getStatusCode() == 200) {
                InputStream is = response.getEntity().getContent();
                String xml = CharStreams.toString(new InputStreamReader(is));
                is.close();
                Files.write(xml, new File("c:/tmp/musicdb/" + i + ".xml"), Charset.forName("utf-8"));
            } else {
                System.out.println(response.getStatusLine());
                System.out.println(params);
            }
            i++;
            request.abort();
        } catch (Exception ex) {
            System.out.println(params);
            ex.printStackTrace();
        }
    }
}

From source file:SignatureTest.java

public static void main(String[] args) {
    try {/*from  ww  w  .jav a 2s  .c om*/
        if (args[0].equals("-genkeypair")) {
            KeyPairGenerator pairgen = KeyPairGenerator.getInstance("DSA");
            SecureRandom random = new SecureRandom();
            pairgen.initialize(KEYSIZE, random);
            KeyPair keyPair = pairgen.generateKeyPair();
            ObjectOutputStream out = new ObjectOutputStream(new FileOutputStream(args[1]));
            out.writeObject(keyPair.getPublic());
            out.close();
            out = new ObjectOutputStream(new FileOutputStream(args[2]));
            out.writeObject(keyPair.getPrivate());
            out.close();
        } else if (args[0].equals("-sign")) {
            ObjectInputStream keyIn = new ObjectInputStream(new FileInputStream(args[3]));
            PrivateKey privkey = (PrivateKey) keyIn.readObject();
            keyIn.close();

            Signature signalg = Signature.getInstance("DSA");
            signalg.initSign(privkey);

            File infile = new File(args[1]);
            InputStream in = new FileInputStream(infile);
            int length = (int) infile.length();
            byte[] message = new byte[length];
            in.read(message, 0, length);
            in.close();

            signalg.update(message);
            byte[] signature = signalg.sign();

            DataOutputStream out = new DataOutputStream(new FileOutputStream(args[2]));
            int signlength = signature.length;
            out.writeInt(signlength);
            out.write(signature, 0, signlength);
            out.write(message, 0, length);
            out.close();
        } else if (args[0].equals("-verify")) {
            ObjectInputStream keyIn = new ObjectInputStream(new FileInputStream(args[2]));
            PublicKey pubkey = (PublicKey) keyIn.readObject();
            keyIn.close();

            Signature verifyalg = Signature.getInstance("DSA");
            verifyalg.initVerify(pubkey);

            File infile = new File(args[1]);
            DataInputStream in = new DataInputStream(new FileInputStream(infile));
            int signlength = in.readInt();
            byte[] signature = new byte[signlength];
            in.read(signature, 0, signlength);

            int length = (int) infile.length() - signlength - 4;
            byte[] message = new byte[length];
            in.read(message, 0, length);
            in.close();

            verifyalg.update(message);
            if (!verifyalg.verify(signature))
                System.out.print("not ");
            System.out.println("verified");
        }
    } catch (Exception e) {
        e.printStackTrace();
    }
}

From source file:com.rest.samples.getImage.java

public static void main(String[] args) {
    // TODO code application logic here
    String url = "https://api.adorable.io/avatars/eyes1";
    try {/* w ww . j  ava 2  s.  c  om*/
        HttpClient hc = HttpClientBuilder.create().build();
        HttpGet getMethod = new HttpGet(url);
        getMethod.addHeader("accept", "application/png");
        HttpResponse res = hc.execute(getMethod);
        if (res.getStatusLine().getStatusCode() != 200) {
            throw new RuntimeException("Failed : HTTP eror code: " + res.getStatusLine().getStatusCode());
        }

        InputStream is = res.getEntity().getContent();

        OutputStream os = new FileOutputStream(new File("img.png"));
        int read = 0;
        byte[] bytes = new byte[2048];
        while ((read = is.read(bytes)) != -1) {
            os.write(bytes, 0, read);
        }
        is.close();
        os.close();
    } catch (IOException ex) {
        Logger.getLogger(SamplesUseHttpclient.class.getName()).log(Level.SEVERE, null, ex);
    }
}

From source file:Main.java

public static void main(String[] args) {
    try {// w  w w  . ja v a  2s. c  om

        OutputStream os = new FileOutputStream("test.txt");

        InputStream is = new FileInputStream("test.txt");

        // write something
        os.write('A');

        // flush the stream
        os.flush();

        // close the stream but it does nothing
        os.close();

        // read what we wrote
        System.out.println((char) is.read());
        is.close();
    } catch (Exception ex) {
        ex.printStackTrace();
    }

}

From source file:examples.ftp.java

public static final void main(String[] args) {
    int base = 0;
    boolean storeFile = false, binaryTransfer = false, error = false;
    String server, username, password, remote, local;
    FTPClient ftp;/*ww w  .j  a va 2 s  .  c  o m*/

    for (base = 0; base < args.length; base++) {
        if (args[base].startsWith("-s"))
            storeFile = true;
        else if (args[base].startsWith("-b"))
            binaryTransfer = true;
        else
            break;
    }

    if ((args.length - base) != 5) {
        System.err.println(USAGE);
        System.exit(1);
    }

    server = args[base++];
    username = args[base++];
    password = args[base++];
    remote = args[base++];
    local = args[base];

    ftp = new FTPClient();
    ftp.addProtocolCommandListener(new PrintCommandListener(new PrintWriter(System.out)));

    try {
        int reply;
        ftp.connect(server);
        System.out.println("Connected to " + server + ".");

        // After connection attempt, you should check the reply code to verify
        // success.
        reply = ftp.getReplyCode();

        if (!FTPReply.isPositiveCompletion(reply)) {
            ftp.disconnect();
            System.err.println("FTP server refused connection.");
            System.exit(1);
        }
    } catch (IOException e) {
        if (ftp.isConnected()) {
            try {
                ftp.disconnect();
            } catch (IOException f) {
                // do nothing
            }
        }
        System.err.println("Could not connect to server.");
        e.printStackTrace();
        System.exit(1);
    }

    __main: try {
        if (!ftp.login(username, password)) {
            ftp.logout();
            error = true;
            break __main;
        }

        System.out.println("Remote system is " + ftp.getSystemName());

        if (binaryTransfer)
            ftp.setFileType(FTP.BINARY_FILE_TYPE);

        // Use passive mode as default because most of us are
        // behind firewalls these days.
        ftp.enterLocalPassiveMode();

        if (storeFile) {
            InputStream input;

            input = new FileInputStream(local);

            ftp.storeFile(remote, input);

            input.close();
        } else {
            OutputStream output;

            output = new FileOutputStream(local);

            ftp.retrieveFile(remote, output);

            output.close();
        }

        ftp.logout();
    } catch (FTPConnectionClosedException e) {
        error = true;
        System.err.println("Server closed connection.");
        e.printStackTrace();
    } catch (IOException e) {
        error = true;
        e.printStackTrace();
    } finally {
        if (ftp.isConnected()) {
            try {
                ftp.disconnect();
            } catch (IOException f) {
                // do nothing
            }
        }
    }

    System.exit(error ? 1 : 0);
}

From source file:Main.java

public static void main(String[] args) throws Exception {
    String WRITE_OBJECT_SQL = "BEGIN " + "  INSERT INTO java_objects(object_id, object_name, object_value) "
            + "  VALUES (?, ?, empty_blob()) " + "  RETURN object_value INTO ?; " + "END;";
    String READ_OBJECT_SQL = "SELECT object_value FROM java_objects WHERE object_id = ?";

    Connection conn = getOracleConnection();
    conn.setAutoCommit(false);/*  www . java  2 s .  c o  m*/
    List<Object> list = new ArrayList<Object>();
    list.add("This is a short string.");
    list.add(new Integer(1234));
    list.add(new java.util.Date());

    // write object to Oracle
    long id = 0001;
    String className = list.getClass().getName();
    CallableStatement cstmt = conn.prepareCall(WRITE_OBJECT_SQL);

    cstmt.setLong(1, id);
    cstmt.setString(2, className);

    cstmt.registerOutParameter(3, java.sql.Types.BLOB);

    cstmt.executeUpdate();
    BLOB blob = (BLOB) cstmt.getBlob(3);
    OutputStream os = blob.getBinaryOutputStream();
    ObjectOutputStream oop = new ObjectOutputStream(os);
    oop.writeObject(list);
    oop.flush();
    oop.close();
    os.close();

    // Read object from oracle
    PreparedStatement pstmt = conn.prepareStatement(READ_OBJECT_SQL);
    pstmt.setLong(1, id);
    ResultSet rs = pstmt.executeQuery();
    rs.next();
    InputStream is = rs.getBlob(1).getBinaryStream();
    ObjectInputStream oip = new ObjectInputStream(is);
    Object object = oip.readObject();
    className = object.getClass().getName();
    oip.close();
    is.close();
    rs.close();
    pstmt.close();
    conn.commit();

    // de-serialize list a java object from a given objectID
    List listFromDatabase = (List) object;
    System.out.println("[After De-Serialization] list=" + listFromDatabase);
    conn.close();
}

From source file:com.rest.samples.getReportFromJasperServer.java

public static void main(String[] args) {
    // TODO code application logic here
    String url = "http://username:password@10.49.28.3:8081/jasperserver/rest_v2/reports/Reportes/vencimientos.pdf?feini=2016-09-30&fefin=2016-09-30";
    try {/*from  w w  w. ja  va 2 s.c o m*/
        HttpClient hc = HttpClientBuilder.create().build();
        HttpGet getMethod = new HttpGet(url);
        getMethod.addHeader("accept", "application/pdf");
        HttpResponse res = hc.execute(getMethod);
        if (res.getStatusLine().getStatusCode() != 200) {
            throw new RuntimeException("Failed : HTTP eror code: " + res.getStatusLine().getStatusCode());
        }

        InputStream is = res.getEntity().getContent();
        OutputStream os = new FileOutputStream(new File("vencimientos.pdf"));
        int read = 0;
        byte[] bytes = new byte[2048];

        while ((read = is.read(bytes)) != -1) {
            os.write(bytes, 0, read);
        }
        is.close();
        os.close();

        if (Desktop.isDesktopSupported()) {
            File pdfFile = new File("vencimientos.pdf");
            Desktop.getDesktop().open(pdfFile);
        }

    } catch (IOException ex) {
        Logger.getLogger(SamplesUseHttpclient.class.getName()).log(Level.SEVERE, null, ex);
    }
}

From source file:PNGDecoder.java

public static void main(String[] args) throws Exception {
    String name = "logo.png";
    if (args.length > 0)
        name = args[0];//www .  ja  v a 2 s . c om
    InputStream in = PNGDecoder.class.getResourceAsStream(name);
    final BufferedImage image = PNGDecoder.decode(in);
    in.close();

    JFrame f = new JFrame() {
        public void paint(Graphics g) {
            Insets insets = getInsets();
            g.drawImage(image, insets.left, insets.top, null);
        }
    };
    f.setVisible(true);
    Insets insets = f.getInsets();
    f.setSize(image.getWidth() + insets.left + insets.right, image.getHeight() + insets.top + insets.bottom);
}

From source file:aplicacion.sistema.version.logic.ftp.java

public static final void main(String[] args) {
    int base = 0;
    boolean storeFile = false, binaryTransfer = false, error = false;
    String server, username, password, remote, local;
    server = "gisbertrepuestos.com.ar";
    username = "gisbertrepuestos.com.ar";
    password = "ipsilon@1982";
    remote = "beta/beta-patch.msp";
    local = "c:/beta-patch-from-ftp.msp";
    FTPClient ftp;/*from  w  w  w .  j av a2s.c  om*/
    /*
    for (base = 0; base < args.length; base++)
    {
    if (args[base].startsWith("-s"))
        storeFile = true;
    else if (args[base].startsWith("-b"))
        binaryTransfer = true;
    else
        break;
    }
            
    if ((args.length - base) != 5)
    {
    System.err.println(USAGE);
    System.exit(1);
    }
            
    server = args[base++];
    username = args[base++];
    password = args[base++];
    remote = args[base++];
    local = args[base];
    */
    ftp = new FTPClient();
    ftp.addProtocolCommandListener(new PrintCommandListener(new PrintWriter(System.out)));

    try {
        int reply;
        ftp.connect(server);
        System.out.println("Connected to " + server + ".");

        // After connection attempt, you should check the reply code to verify
        // success.
        reply = ftp.getReplyCode();

        if (!FTPReply.isPositiveCompletion(reply)) {
            ftp.disconnect();
            System.err.println("FTP server refused connection.");
            System.exit(1);
        }
    } catch (IOException e) {
        if (ftp.isConnected()) {
            try {
                ftp.disconnect();
            } catch (IOException f) {
                // do nothing
            }
        }
        System.err.println("Could not connect to server.");
        e.printStackTrace();
        System.exit(1);
    }

    __main: try {
        if (!ftp.login(username, password)) {
            ftp.logout();
            error = true;
            break __main;
        }

        System.out.println("Remote system is " + ftp.getSystemName());

        if (binaryTransfer)
            ftp.setFileType(FTP.BINARY_FILE_TYPE);

        // Use passive mode as default because most of us are
        // behind firewalls these days.
        ftp.enterLocalPassiveMode();

        if (storeFile) {
            InputStream input;

            input = new FileInputStream(local);

            ftp.storeFile(remote, input);

            input.close();
        } else {
            OutputStream output;

            output = new FileOutputStream(local);

            ftp.retrieveFile(remote, output);

            output.close();
        }

        ftp.logout();
    } catch (FTPConnectionClosedException e) {
        error = true;
        System.err.println("Server closed connection.");
        e.printStackTrace();
    } catch (IOException e) {
        error = true;
        e.printStackTrace();
    } finally {
        if (ftp.isConnected()) {
            try {
                ftp.disconnect();
            } catch (IOException f) {
                // do nothing
            }
        }
    }

    System.exit(error ? 1 : 0);
}