Example usage for java.io OutputStream close

Introduction

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

Prototype

public void close() throws IOException

Source Link

Document

Closes this output stream and releases any system resources associated with this stream.

Usage

From source file:edu.cwru.jpdg.Dotty.java

public static void graphviz(String name, String graph) {

    byte[] bytes = graph.getBytes();
    try {//w w w .  ja v  a  2s .c om
        Path p = Paths.get("./reports/" + name + ".dot");
        Files.write(p, bytes);
    } catch (IOException e) {
        System.out.println(graph);
    }

    try {
        ProcessBuilder pb = new ProcessBuilder("dot", "-Tpng", "-o", "reports/" + name + ".png");
        pb.redirectError(ProcessBuilder.Redirect.INHERIT);
        Process p = pb.start();
        OutputStream stdin = p.getOutputStream();
        stdin.write(bytes);
        stdin.close();

        String line;
        BufferedReader stdout = new BufferedReader(new InputStreamReader(p.getInputStream()));
        List<String> stdout_lines = new ArrayList<String>();
        line = stdout.readLine();
        while (line != null) {
            stdout_lines.add(line);
            line = stdout.readLine();
        }
        if (p.waitFor() != 0) {
            throw new RuntimeException("javac failed");
        }
    } catch (InterruptedException e) {
        throw new RuntimeException(e.getMessage());
    } catch (IOException e) {
        throw new RuntimeException(e.getMessage());
    }
}

From source file:Main.java

/**
 * Do an HTTP POST and return the data as a byte array.
 *//*from   w  w w . j  a va  2 s .  c  o m*/
public static byte[] executePost(String url, byte[] data, Map<String, String> requestProperties)
        throws MalformedURLException, IOException {
    HttpURLConnection urlConnection = null;
    try {
        urlConnection = (HttpURLConnection) new URL(url).openConnection();
        urlConnection.setRequestMethod("POST");
        urlConnection.setDoOutput(data != null);
        urlConnection.setDoInput(true);
        if (requestProperties != null) {
            for (Map.Entry<String, String> requestProperty : requestProperties.entrySet()) {
                urlConnection.setRequestProperty(requestProperty.getKey(), requestProperty.getValue());
            }
        }
        urlConnection.connect();
        if (data != null) {
            OutputStream out = new BufferedOutputStream(urlConnection.getOutputStream());
            out.write(data);
            out.close();
        }
        InputStream in = new BufferedInputStream(urlConnection.getInputStream());
        return convertInputStreamToByteArray(in);
    } catch (IOException e) {
        String details;
        if (urlConnection != null) {
            details = "; code=" + urlConnection.getResponseCode() + " (" + urlConnection.getResponseMessage()
                    + ")";
        } else {
            details = "";
        }
        Log.e("ExoplayerUtil", "executePost: Request failed" + details, e);
        throw e;
    } finally {
        if (urlConnection != null) {
            urlConnection.disconnect();
        }
    }
}

From source file:Main.java

static void copyData(InputStream from, OutputStream to) throws IOException {
    byte[] buffer = new byte[1024];
    int length;/*from   ww  w  .j  av a2s .c om*/
    while ((length = from.read(buffer)) > 0) {
        to.write(buffer, 0, length);
    }
    to.flush();
    to.close();
    from.close();
}

From source file:io.helixservice.feature.configuration.cloudconfig.CloudConfigDecrypt.java

/**
 * Decrypt an encrypted string//w  w  w  . j a  v  a  2 s. c o m
 * <p>
 * This method blocks on a HTTP request.
 *
 * @param name property or filename for reference/logging
 * @param encryptedValue Encrypted string
 * @param cloudConfigUri URI of the Cloud Config server
 * @param httpBasicHeader HTTP Basic header containing username and password for Cloud Config server
 * @return
 */
public static String decrypt(String name, String encryptedValue, String cloudConfigUri,
        String httpBasicHeader) {
    String result = encryptedValue;

    // Remove prefix if needed
    if (encryptedValue.startsWith(CIPHER_PREFIX)) {
        encryptedValue = encryptedValue.substring(CIPHER_PREFIX.length());
    }

    String decryptUrl = cloudConfigUri + "/decrypt";

    try {
        HttpURLConnection connection = (HttpURLConnection) new URL(decryptUrl).openConnection();
        connection.setDoOutput(true);
        connection.setDoInput(true);

        connection.setRequestMethod("POST");
        connection.addRequestProperty(AUTHORIZATION_HEADER, httpBasicHeader);
        connection.setRequestProperty("Content-Type", "text/plain");
        connection.setRequestProperty("Content-Length", Integer.toString(encryptedValue.getBytes().length));
        connection.setRequestProperty("Accept", "*/*");

        // Write body
        OutputStream outputStream = connection.getOutputStream();
        outputStream.write(encryptedValue.getBytes());
        outputStream.close();

        if (connection.getResponseCode() == 200) {
            InputStream inputStream = connection.getInputStream();
            result = IOUtils.toString(inputStream);
            inputStream.close();
        } else {
            LOG.error("Unable to Decrypt name=" + name + " due to httpStatusCode="
                    + connection.getResponseCode() + " for decryptUrl=" + decryptUrl);
        }
    } catch (IOException e) {
        LOG.error("Unable to connect to Cloud Config server at decryptUrl=" + decryptUrl, e);
    }

    return result;
}

From source file:Main.java

public static void copyFile(File src, File dst) throws IOException {
    InputStream in = new FileInputStream(src);
    OutputStream out = new FileOutputStream(dst);

    byte[] buf = new byte[1024];
    int len;//  w  ww.  j  a  va  2  s.  c om
    while ((len = in.read(buf)) > 0) {
        out.write(buf, 0, len);
    }
    in.close();
    out.close();
}

From source file:Main.java

public static void copyInputStreamToFile(InputStream in, File file) {
    try {//from   w w  w . ja  v  a  2  s .co  m
        OutputStream out = new FileOutputStream(file);
        byte[] buf = new byte[1024];
        int len;
        while ((len = in.read(buf)) > 0) {
            out.write(buf, 0, len);
        }
        out.close();
        in.close();
    } catch (Exception e) {
        e.printStackTrace();
    }
}

From source file:Main.java

public static void pushFileFromRAW(Context mContext, File outputFile, int RAW, boolean Override)
        throws IOException {
    if (!outputFile.exists() || Override) {
        if (Override && outputFile.exists())
            if (!outputFile.delete()) {
                throw new IOException(outputFile.getName() + " can't be deleted!");
            }/*  w w  w  . j  ava  2s.  c om*/
        InputStream is = mContext.getResources().openRawResource(RAW);
        OutputStream os = new FileOutputStream(outputFile);
        byte[] data = new byte[is.available()];
        is.read(data);
        os.write(data);
        is.close();
        os.close();
    }
}

From source file:Main.java

public static void savePicture(byte[] picture) throws IOException {

    OutputStream out = null;
    try {//from  w  ww  .j a v a 2s  . c  o  m
        out = new FileOutputStream(PICTURE_TEMP_PATH);
        out.write(picture);
        out.flush();

    } finally {
        if (out != null) {
            out.close();
        }
    }
}

From source file:Main.java

public static void DocumentToStream(final Document doc, OutputStream stream) {
    Result l_s = new StreamResult(stream);

    doc.normalize();/*from www. j  av a2  s  .c  o m*/

    try {
        TransformerFactory.newInstance().newTransformer().transform(new DOMSource(doc), l_s);
        stream.close();
    } catch (Exception e) {
        System.err.println(e);

        return;
    }
}

From source file:filtros.histograma.Histograma.java

public static void Apply(BufferedImage image, String savePath) {
    //Chamada do metodo que gera os dados do histograma
    GetData(image);/*from w  w w .j  a v a  2 s  .  com*/

    //Dataset que gera o grafico
    DefaultCategoryDataset ds = new DefaultCategoryDataset();

    //Loop que percorre o array de dados do histograma
    for (int k = 0; k < data.length; k++) {
        //Adiciona o valor ao dataset
        ds.setValue(data[k], "Imagem", Integer.toString(data[k]));
    }

    //Gera o grafico
    JFreeChart grafico = ChartFactory.createLineChart("Histograma", "Tons de cinza", "Valor", ds,
            PlotOrientation.VERTICAL, true, true, false);

    //Salva o grafico em um arquivo de png
    try {
        OutputStream arquivo = new FileOutputStream(savePath);
        ChartUtilities.writeChartAsPNG(arquivo, grafico, 550, 400);
        arquivo.close();
    } catch (IOException e) {
        e.printStackTrace();
    }
}