Example usage for java.io FileOutputStream write

Introduction

In this page you can find the example usage for java.io FileOutputStream write.

Prototype

public void write(byte b[]) throws IOException

Source Link

Document

Writes b.length bytes from the specified byte array to this file output stream.

Usage

From source file:com.autentia.wuija.reports.JasperReportsHelper.java

public static File writeExportedReportToFile(String fileName, Format format,
        final ByteArrayOutputStream output) {

    File file;//from  w  ww . ja va2  s  .  c om
    FileOutputStream fos = null;
    try {
        file = File.createTempFile(fileName, "." + format.toString().toLowerCase());
        fos = new FileOutputStream(file);
        fos.write(output.toByteArray());
        fos.flush();

    } catch (IOException e) {
        final String msg = "Exception writing the report generated.";
        log.error(msg, e);
        throw new JRRuntimeException(msg, e);

    } finally {
        if (fos != null) {
            try {
                fos.close();
            } catch (IOException e) {
                log.warn("Cannot close file of generated report", e);
            }
        }
    }
    return file;
}

From source file:jmupen.JMupenUpdater.java

/**
 * Writes the given bytes (within the specified range) to the given file.
 *
 * @param aFile File where bytes will be written to
 * @param theBytes The bytes to write/* ww w.  j ava  2  s. c  o  m*/
 * @throws java.io.IOException
 */
public static void writeBytes(File aFile, byte theBytes[]) throws IOException {
    if (theBytes == null) {
        aFile.delete();
        return;
    }
    FileOutputStream fileStream = new FileOutputStream(aFile);
    fileStream.write(theBytes);
    fileStream.close();
}

From source file:com.netflix.niws.client.http.SecureAcceptAllGetTest.java

@BeforeClass
public static void init() throws Exception {

    // setup server 1, will use first keystore/truststore with client auth
    TEST_PORT = new Random().nextInt(1000) + 4000;
    TEST_SERVICE_URI = "https://127.0.0.1:" + TEST_PORT + "/";

    // jks format
    byte[] sampleTruststore1 = Base64.decode(SecureGetTest.TEST_TS1);
    byte[] sampleKeystore1 = Base64.decode(SecureGetTest.TEST_KS1);

    TEST_FILE_KS = File.createTempFile("SecureAcceptAllGetTest", ".keystore");
    TEST_FILE_TS = File.createTempFile("SecureAcceptAllGetTest", ".truststore");

    FileOutputStream keystoreFileOut = new FileOutputStream(TEST_FILE_KS);
    try {/*from w  w w  .  j a v a2  s.c  o m*/
        keystoreFileOut.write(sampleKeystore1);
    } finally {
        keystoreFileOut.close();
    }

    FileOutputStream truststoreFileOut = new FileOutputStream(TEST_FILE_TS);
    try {
        truststoreFileOut.write(sampleTruststore1);
    } finally {
        truststoreFileOut.close();
    }

    try {
        TEST_SERVER = new SimpleSSLTestServer(TEST_FILE_TS, SecureGetTest.PASSWORD, TEST_FILE_KS,
                SecureGetTest.PASSWORD, TEST_PORT, false);
    } catch (Exception e) {
        e.printStackTrace();
        fail(e.getMessage());
    }

}

From source file:kilim.tools.Weaver.java

static void writeClass(ClassInfo ci) throws IOException {
    String className = ci.className.replace('.', File.separatorChar);
    String dir = outputDir + File.separatorChar + getDirName(className);
    mkdir(dir);//from  www  . ja  v a 2  s  .co  m
    // Convert name to fully qualified file name
    className = outputDir + File.separatorChar + className + ".class";
    if (ci.className.startsWith("kilim.S_")) {
        // Check if we already have that file
        if (new File(className).exists())
            return;
    }
    FileOutputStream fos = new FileOutputStream(className);
    fos.write(ci.bytes);
    fos.close();
    if (verbose) {
        log.info("Wrote: " + className);
    }
}

From source file:be.fedict.eidviewer.lib.X509Utilities.java

public static void certificateToDERFile(X509Certificate certificate, File file)
        throws CertificateEncodingException, IOException {
    FileOutputStream outputStream = null;
    try {//from  w ww  . java2 s . c  o  m
        outputStream = new FileOutputStream(file);
        outputStream.write(certificate.getEncoded());
    } finally {
        if (outputStream != null)
            outputStream.close();
    }
}

From source file:org.pmedv.core.util.ResourceUtils.java

/**
 * Writes a given <code>InputStream</code> to a file.
 * //from w  w w .jav a  2 s . com
 * @param is
 * @param out
 */
public static void writeStreamToFile(InputStream is, File out) {

    byte[] b;

    try {

        FileOutputStream fos = new FileOutputStream(out);

        b = new byte[is.available()];

        for (int n; (n = is.read(b)) != -1;) {
            fos.write(b);
        }

        fos.close();

    } catch (IOException e) {
        e.printStackTrace();
    }

}

From source file:Main.java

public static void copyAsset(Context context, String assetFileName, String dstFile) {
    AssetManager assetManager = null;//  w  w w. j a  v a 2s. c  om
    assetManager = context.getAssets();
    InputStream inputStream = null;
    FileOutputStream fileOutputStream = null;

    try {
        inputStream = assetManager.open(assetFileName);
        fileOutputStream = new FileOutputStream(dstFile);
        byte[] buffer = new byte[inputStream.available()];
        inputStream.read(buffer);
        fileOutputStream.write(buffer);
        fileOutputStream.flush();
    } catch (Exception ex) {
        ex.printStackTrace();
    } finally {
        try {
            inputStream.close();
            fileOutputStream.close();
        } catch (Exception ex) {
            ex.printStackTrace();
        }
    }
}

From source file:com.znsx.util.licence.LicenceUtil.java

/**
 * ?DSA??p,q,g,j,x,y/*from   w  w  w . ja  va 2s.  co  m*/
 * 
 * @param seed
 *            ??
 * @throws Exception
 * @author huangbuji
 *         <p />
 *         Create at 2014-2-8 ?4:45:26
 */
@SuppressWarnings("restriction")
public static void genKey(String seed) throws Exception {
    KeyPairGenerator keygen = KeyPairGenerator.getInstance("DSA");
    SecureRandom random = new SecureRandom();
    random.setSeed(seed.getBytes("utf8"));
    keygen.initialize(1024, random);

    KeyPair keyPair = keygen.generateKeyPair();
    DSAPublicKeyImpl publicKey = (DSAPublicKeyImpl) keyPair.getPublic();
    DSAPrivateKey privateKey = (DSAPrivateKey) keyPair.getPrivate();
    DSAParams dsaParams = privateKey.getParams();
    Base64 base64 = new Base64();
    String p = new String(base64.encode(dsaParams.getP().toByteArray()), "utf8");
    String q = new String(base64.encode(dsaParams.getQ().toByteArray()), "utf8");
    String g = new String(base64.encode(dsaParams.getG().toByteArray()), "utf8");
    String x = new String(base64.encode(privateKey.getX().toByteArray()), "utf8");
    String y = new String(base64.encode(publicKey.getY().toByteArray()), "utf8");
    System.out.println("P: " + p);
    System.out.println("Q: " + q);
    System.out.println("G: " + g);
    System.out.println("X: " + x);
    System.out.println("Y: " + y);

    String publicKeyString = new String(base64.encode(publicKey.getEncoded()), "utf8");
    String privateKeyString = new String(base64.encode(privateKey.getEncoded()), "utf8");
    System.err.println("public: " + publicKeyString);
    System.err.println("private: " + privateKeyString);

    File publicFile = new File("D:/binPublic.ky");
    File privateFile = new File("D:/binPrivate.ky");
    FileOutputStream out = new FileOutputStream(publicFile);
    out.write(publicKey.getEncoded());
    out.flush();
    out.close();
    out = new FileOutputStream(privateFile);
    out.write(privateKey.getEncoded());
    out.flush();
    out.close();
}

From source file:FileUtils.java

public static void writeFile(byte[] bytes, File file) throws IOException {
    if (file.isDirectory()) {
        throw new IllegalArgumentException(
                "File '" + file.getAbsoluteFile() + "' is an existing directory.  Cannot write.");
    }//www  .  j  a v a2s .  c  o m

    FileOutputStream stream = new FileOutputStream(file);
    try {
        stream.write(bytes);
        stream.flush();
    } finally {
        stream.close();
    }
}

From source file:com.ckfinder.connector.utils.ImageUtils.java

/**
 * writes unchanged file to disk.//  ww  w  . j  a  va 2s .  c  o m
 *
 * @param stream - stream to read the file from
 *
 * @param destFile - file to write to
 *
 * @throws IOException when error occurs.
 */
private static void writeUntouchedImage(final InputStream stream, final File destFile) throws IOException {
    ByteArrayOutputStream byteArrayOS = new ByteArrayOutputStream();
    byte[] buffer = new byte[MAX_BUFF_SIZE];
    int readNum = -1;
    while ((readNum = stream.read(buffer)) != -1) {
        byteArrayOS.write(buffer, 0, readNum);
    }
    byte[] bytes = byteArrayOS.toByteArray();
    byteArrayOS.close();
    FileOutputStream fileOS = new FileOutputStream(destFile);
    fileOS.write(bytes);
    fileOS.flush();
    fileOS.close();
}