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:com.wx.kernel.util.HttpKit.java

/**
 * Send POST request/*from  w ww .jav  a  2s  .  co  m*/
 */
public static String post(String url, Map<String, String> queryParas, String data,
        Map<String, String> headers) {
    HttpURLConnection conn = null;
    try {
        conn = getHttpConnection(buildUrlWithQueryString(url, queryParas), POST, headers);
        conn.connect();

        OutputStream out = conn.getOutputStream();
        out.write(data.getBytes(CHARSET));
        out.flush();
        out.close();

        return readResponseString(conn);
    } catch (Exception e) {
        throw new RuntimeException(e);
    } finally {
        if (conn != null) {
            conn.disconnect();
        }
    }
}

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From source file:Main.java

public static String executePost(String targetURL, String urlParameters) {
    try {//ww w  . jav  a  2 s.  c  o  m
        HttpURLConnection connection = (HttpURLConnection) new URL(targetURL).openConnection();
        connection.setRequestMethod("POST");
        connection.setDoOutput(true);
        //connection.setRequestProperty("Accept-Charset", charset);
        connection.setRequestProperty("Content-Type", "application/x-www-form-urlencoded");
        OutputStream output = null;
        try {
            output = connection.getOutputStream();
            output.write(urlParameters.getBytes());
        } finally {
            if (output != null)
                try {
                    output.flush();
                    output.close();
                } catch (IOException logOrIgnore) {
                }
        }
        InputStream response = connection.getInputStream();
        String contentType = connection.getHeaderField("Content-Type");
        String responseStr = "";
        if (true) {
            BufferedReader reader = null;
            try {
                reader = new BufferedReader(new InputStreamReader(response));
                for (String line; (line = reader.readLine()) != null;) {
                    //System.out.println(line);
                    responseStr = responseStr + line;
                    Thread.sleep(2);
                }
            } finally {
                if (reader != null)
                    try {
                        reader.close();
                    } catch (IOException logOrIgnore) {
                    }
            }
        } else {
            // It's likely binary content, use InputStream/OutputStream.
            System.out.println("Binary content");
        }
        return responseStr;
    } catch (Exception e) {
        e.printStackTrace();
    }
    return "";
}

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From source file:Main.java

private static boolean copyAsset(AssetManager assetManager, String fromAssetPath, String toPath) {
    InputStream in = null;//from   w w w .ja  v a  2  s .  c  o  m
    OutputStream out = null;
    try {
        in = assetManager.open(fromAssetPath);
        new File(toPath).createNewFile();
        out = new FileOutputStream(toPath);
        copyFile2(in, out);
        in.close();
        in = null;
        out.flush();
        out.close();
        out = null;
        return true;
    } catch (Exception e) {
        e.printStackTrace();
        return false;
    }
}

---

From source file:FileHelper.java

/**
 * Move a file from one location to another.  An attempt is made to rename
 * the file and if that fails, the file is copied and the old file deleted.
 *
 * @param from file which should be moved.
 * @param to desired destination of the file.
 * @param overwrite If false, an exception will be thrown rather than overwrite a file.
 * @throws IOException if an error occurs.
 *
 * @since ostermillerutils 1.00.00// w  w  w  . j  a  v a 2 s.co  m
 */
public static void move(File from, File to, boolean overwrite) throws IOException {
    if (to.exists()) {
        if (overwrite) {
            if (!to.delete()) {
                throw new IOException(MessageFormat.format(labels.getString("deleteerror"),
                        (Object[]) new String[] { to.toString() }));
            }
        } else {
            throw new IOException(MessageFormat.format(labels.getString("alreadyexistserror"),
                    (Object[]) new String[] { to.toString() }));
        }
    }

    if (from.renameTo(to))
        return;

    InputStream in = null;
    OutputStream out = null;
    try {
        in = new FileInputStream(from);
        out = new FileOutputStream(to);
        copy(in, out);
        in.close();
        in = null;
        out.flush();
        out.close();
        out = null;
        if (!from.delete()) {
            throw new IOException(MessageFormat.format(labels.getString("deleteoriginalerror"),
                    (Object[]) new String[] { from.toString(), to.toString() }));
        }
    } finally {
        if (in != null) {
            in.close();
            in = null;
        }
        if (out != null) {
            out.flush();
            out.close();
            out = null;
        }
    }
}

---

From source file:Main.java

private static void copyFiles(InputStream source, File dest) throws IOException {
    OutputStream output = null;
    int bytesRead = 0;
    byte[] buf = null;
    try {//from  w w w . j ava  2  s  .  co m
        output = new FileOutputStream(dest);
        buf = new byte[1024];
        while ((bytesRead = source.read(buf)) > 0) {
            output.write(buf, 0, bytesRead);
        }
    } finally {
        source.close();
        output.close();
        bytesRead = 0;
        output = null;
        source = null;
        buf = null;
    }
}

---

From source file:org.apache.hadoop.gateway.GatewayLdapPosixGroupFuncTest.java

public static void setupGateway(int ldapPort) throws Exception {

    File targetDir = new File(System.getProperty("user.dir"), "target");
    File gatewayDir = new File(targetDir, "gateway-home-" + UUID.randomUUID());
    gatewayDir.mkdirs();//from  ww  w .  j  ava 2 s .co m

    GatewayTestConfig testConfig = new GatewayTestConfig();
    config = testConfig;
    testConfig.setGatewayHomeDir(gatewayDir.getAbsolutePath());

    File topoDir = new File(testConfig.getGatewayTopologyDir());
    topoDir.mkdirs();

    File deployDir = new File(testConfig.getGatewayDeploymentDir());
    deployDir.mkdirs();

    DefaultGatewayServices srvcs = new DefaultGatewayServices();
    Map<String, String> options = new HashMap<>();
    options.put("persist-master", "true");
    options.put("master", "hadoop");

    try {
        srvcs.init(testConfig, options);
    } catch (ServiceLifecycleException e) {
        e.printStackTrace(); // I18N not required.
    }

    gateway = GatewayServer.startGateway(testConfig, srvcs);
    MatcherAssert.assertThat("Failed to start gateway.", gateway, notNullValue());

    LOG.info("Gateway port = " + gateway.getAddresses()[0].getPort());

    gatewayUrl = "http://localhost:" + gateway.getAddresses()[0].getPort() + "/" + config.getGatewayPath();
    clusterUrl = gatewayUrl + "/test-cluster";
    serviceUrl = clusterUrl + "/test-service-path/test-service-resource";

    GatewayServices services = GatewayServer.getGatewayServices();
    AliasService aliasService = (AliasService) services.getService(GatewayServices.ALIAS_SERVICE);
    aliasService.addAliasForCluster("test-cluster", "ldcSystemPassword", "guest-password");

    char[] password1 = aliasService.getPasswordFromAliasForCluster("test-cluster", "ldcSystemPassword");

    File descriptor = new File(topoDir, "test-cluster.xml");
    OutputStream stream = new FileOutputStream(descriptor);
    createTopology(ldapPort).toStream(stream);
    stream.close();

}

---

From source file:com.cloudera.knittingboar.utils.Utils.java

/**
 * Untar an input file into an output file.
 * //from  ww w  . j a  v  a2 s  . c  om
 * The output file is created in the output folder, having the same name as
 * the input file, minus the '.tar' extension.
 * 
 * @param inputFile
 *          the input .tar file
 * @param outputDir
 *          the output directory file.
 * @throws IOException
 * @throws FileNotFoundException
 * 
 * @return The {@link List} of {@link File}s with the untared content.
 * @throws ArchiveException
 */
private static List<File> unTar(final File inputFile, final File outputDir)
        throws FileNotFoundException, IOException, ArchiveException {

    System.out.println(
            String.format("Untaring %s to dir %s.", inputFile.getAbsolutePath(), outputDir.getAbsolutePath()));

    final List<File> untaredFiles = new LinkedList<File>();
    final InputStream is = new FileInputStream(inputFile);
    final TarArchiveInputStream debInputStream = (TarArchiveInputStream) new ArchiveStreamFactory()
            .createArchiveInputStream("tar", is);
    TarArchiveEntry entry = null;
    while ((entry = (TarArchiveEntry) debInputStream.getNextEntry()) != null) {
        final File outputFile = new File(outputDir, entry.getName());
        if (entry.isDirectory()) {
            System.out.println(
                    String.format("Attempting to write output directory %s.", outputFile.getAbsolutePath()));
            if (!outputFile.exists()) {
                System.out.println(String.format("Attempting to create output directory %s.",
                        outputFile.getAbsolutePath()));
                if (!outputFile.mkdirs()) {
                    throw new IllegalStateException(
                            String.format("Couldn't create directory %s.", outputFile.getAbsolutePath()));
                }
            }
        } else {
            System.out.println(String.format("Creating output file %s.", outputFile.getAbsolutePath()));
            final OutputStream outputFileStream = new FileOutputStream(outputFile);
            IOUtils.copy(debInputStream, outputFileStream);
            outputFileStream.close();
        }
        untaredFiles.add(outputFile);
    }
    debInputStream.close();

    return untaredFiles;
}

---

From source file:Main.java

public static void copy(File src, File dest) throws IOException {

    if (src.isDirectory()) {

        //if directory not exists, create it
        if (!dest.exists()) {
            dest.mkdir();/*from ww w.  j a  va  2 s  .c om*/
            System.out.println("Directory copied from " + src + "  to " + dest);
        }

        //list all the directory contents
        String files[] = src.list();

        for (int c = 0; c < files.length; c++) {
            //construct the src and dest file structure
            File srcFile = new File(src, files[c]);
            File destFile = new File(dest, files[c]);
            //recursive copy
            copy(srcFile, destFile);
        }

    } else {
        //if file, then copy it
        //Use bytes stream to support all file types
        InputStream in = new FileInputStream(src);
        OutputStream out = new FileOutputStream(dest);

        byte[] buffer = new byte[1024];

        int length;
        //copy the file content in bytes 
        while ((length = in.read(buffer)) > 0) {
            out.write(buffer, 0, length);
        }

        in.close();
        out.close();
        System.out.println("File copied from " + src + " to " + dest);
    }
}

---

From source file:com.aurel.track.exchange.UploadHelper.java

/**
 * Upload the file in a person and type specific directory
 * @return/*  w w  w . ja v a 2  s . c om*/
 */
public static String upload(File uploadFile, String uploadFileFileName, String targetPath, Locale locale,
        String successResult) {
    InputStream inputStream;
    try {
        inputStream = new FileInputStream(uploadFile);
    } catch (FileNotFoundException e) {
        LOGGER.error("Getting the input stream for the  uploaded file failed with " + e.getMessage());
        LOGGER.debug(ExceptionUtils.getStackTrace(e));
        JSONUtility.encodeJSON(ServletActionContext.getResponse(), JSONUtility.encodeJSONFailure(LocalizeUtil
                .getLocalizedTextFromApplicationResources("admin.actions.importTp.err.failed", locale)));
        return null;
    }
    UploadHelper.ensureDir(targetPath);
    File targetFile = new File(targetPath, uploadFileFileName);
    if (targetFile.exists()) {
        //if the file exists (as a result of a previous import) then delete it
        targetFile.delete();
    }
    try {
        OutputStream outputStream = new FileOutputStream(targetFile);
        byte[] buf = new byte[1024];
        int len;
        while ((len = inputStream.read(buf)) > 0) {
            outputStream.write(buf, 0, len);
        }
        inputStream.close();
        outputStream.close();
    } catch (Exception e) {
        LOGGER.error("Saving the file " + uploadFileFileName + " to the temporary directory " + targetPath
                + " failed with " + e.getMessage());
        LOGGER.debug(ExceptionUtils.getStackTrace(e));
        JSONUtility.encodeJSON(ServletActionContext.getResponse(), JSONUtility.encodeJSONFailure(LocalizeUtil
                .getLocalizedTextFromApplicationResources("admin.actions.importTp.err.failed", locale)));
        return null;
    }
    return successResult;
}

---

From source file:Main.java

/**
 * Compresses a GZIP file./*from w  ww  .j av a 2s. co  m*/
 * 
 * @param bytes
 *            The uncompressed bytes.
 * @return The compressed bytes.
 * @throws IOException
 *             if an I/O error occurs.
 */
public static byte[] gzip(byte[] bytes) throws IOException {
    /* create the streams */
    InputStream is = new ByteArrayInputStream(bytes);
    try {
        ByteArrayOutputStream bout = new ByteArrayOutputStream();
        OutputStream os = new GZIPOutputStream(bout);
        try {
            /* copy data between the streams */
            byte[] buf = new byte[4096];
            int len = 0;
            while ((len = is.read(buf, 0, buf.length)) != -1) {
                os.write(buf, 0, len);
            }
        } finally {
            os.close();
        }

        /* return the compressed bytes */
        return bout.toByteArray();
    } finally {
        is.close();
    }
}

---

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