Example usage for java.io DataInputStream readFully

Introduction

In this page you can find the example usage for java.io DataInputStream readFully.

Prototype

public final void readFully(byte b[]) throws IOException 

Source Link

Document

See the general contract of the readFully method of DataInput .

Usage

From source file:org.apache.xmlgraphics.image.codec.png.PNGRed.java

private static PNGChunk readChunk(final DataInputStream distream) {
    try {//from   w  w w  . j a  v  a2  s  .c  o  m
        final int length = distream.readInt();
        final int type = distream.readInt();
        final byte[] data = new byte[length];
        distream.readFully(data);
        final int crc = distream.readInt();

        return new PNGChunk(length, type, data, crc);
    } catch (final Exception e) {
        log.error("Exception", e);
        return null;
    }
}

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From source file:it.infn.ct.jsaga.adaptor.jocci.job.jOCCIJobControlAdaptor.java

public String getPublicKey(String file) {
    FileInputStream fis = null;//w  ww  . j  a v a  2 s . c o m
    String _publicKey = "";

    try {
        File f = new File(file);
        fis = new FileInputStream(f);
        DataInputStream dis = new DataInputStream(fis);
        byte[] keyBytes = new byte[(int) f.length()];
        dis.readFully(keyBytes);
        dis.close();
        _publicKey = new String(keyBytes).trim();
    } catch (IOException ex) {
        java.util.logging.Logger.getLogger(jOCCIJobControlAdaptor.class.getName()).log(Level.SEVERE, null, ex);
    } finally {
        try {
            fis.close();
        } catch (IOException ex) {
            java.util.logging.Logger.getLogger(jOCCIJobControlAdaptor.class.getName()).log(Level.SEVERE, null,
                    ex);
        }
    }

    return (_publicKey);
}

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From source file:org.apache.jackrabbit.core.persistence.mem.InMemBundlePersistenceManager.java

/**
 * Reads the content of the hash maps from the file system
 *
 * @throws Exception if an error occurs/*from  w  ww .  java2s .  com*/
 */
public synchronized void loadContents() throws Exception {
    // read item states
    FileSystemResource fsRes = new FileSystemResource(wspFS, BUNDLE_FILE_PATH);
    if (!fsRes.exists()) {
        return;
    }
    BufferedInputStream bis = new BufferedInputStream(fsRes.getInputStream());
    DataInputStream in = new DataInputStream(bis);

    try {
        int n = in.readInt(); // number of entries
        while (n-- > 0) {
            String s = in.readUTF(); // id
            NodeId id = NodeId.valueOf(s);
            int length = in.readInt(); // data length
            byte[] data = new byte[length];
            in.readFully(data); // data
            // store in map
            bundleStore.put(id, data);
        }
    } finally {
        in.close();
    }

    // read references
    fsRes = new FileSystemResource(wspFS, REFS_FILE_PATH);
    bis = new BufferedInputStream(fsRes.getInputStream());
    in = new DataInputStream(bis);

    try {
        int n = in.readInt(); // number of entries
        while (n-- > 0) {
            String s = in.readUTF(); // target id
            NodeId id = NodeId.valueOf(s);
            int length = in.readInt(); // data length
            byte[] data = new byte[length];
            in.readFully(data); // data
            // store in map
            refsStore.put(id, data);
        }
    } finally {
        in.close();
    }

    if (!useFileBlobStore) {
        // read blobs
        fsRes = new FileSystemResource(wspFS, BLOBS_FILE_PATH);
        bis = new BufferedInputStream(fsRes.getInputStream());
        in = new DataInputStream(bis);

        try {
            int n = in.readInt(); // number of entries
            while (n-- > 0) {
                String id = in.readUTF(); // id
                int length = in.readInt(); // data length
                byte[] data = new byte[length];
                in.readFully(data); // data
                // store in map
                blobs.put(id, data);
            }
        } finally {
            in.close();
        }
    }
}

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From source file:com.koushikdutta.superuser.MultitaskSuRequestActivity.java

void manageSocket() {
    new Thread() {
        @Override/*from  ww  w .  j  a v a2  s .  co m*/
        public void run() {
            try {
                mSocket = new LocalSocket();
                mSocket.connect(new LocalSocketAddress(mSocketPath, Namespace.FILESYSTEM));

                DataInputStream is = new DataInputStream(mSocket.getInputStream());

                ContentValues payload = new ContentValues();

                for (int i = 0; i < SU_PROTOCOL_PARAM_MAX; i++) {
                    int nameLen = is.readInt();
                    if (nameLen > SU_PROTOCOL_NAME_MAX)
                        throw new IllegalArgumentException("name length too long: " + nameLen);
                    byte[] nameBytes = new byte[nameLen];
                    is.readFully(nameBytes);
                    String name = new String(nameBytes);
                    int dataLen = is.readInt();
                    if (dataLen > getValueMax(name))
                        throw new IllegalArgumentException(name + " data length too long: " + dataLen);
                    byte[] dataBytes = new byte[dataLen];
                    is.readFully(dataBytes);
                    String data = new String(dataBytes);
                    payload.put(name, data);
                    //                        Log.i(LOGTAG, name);
                    //                        Log.i(LOGTAG, data);
                    if ("eof".equals(name))
                        break;
                }

                int protocolVersion = payload.getAsInteger("version");
                mCallerUid = payload.getAsInteger("from.uid");
                mDesiredUid = payload.getAsByte("to.uid");
                mDesiredCmd = payload.getAsString("command");
                String calledBin = payload.getAsString("from.bin");
                mPid = payload.getAsInteger("pid");
                runOnUiThread(new Runnable() {
                    @Override
                    public void run() {
                        mRequestReady = true;
                        requestReady();
                    }
                });

                if ("com.koushikdutta.superuser".equals(getPackageName())) {
                    if (!SuHelper.CURRENT_VERSION.equals(payload.getAsString("binary.version")))
                        SuCheckerReceiver.doNotification(MultitaskSuRequestActivity.this);
                }
            } catch (Exception ex) {
                Log.i(LOGTAG, ex.getMessage(), ex);
                try {
                    mSocket.close();
                } catch (Exception e) {
                }
                runOnUiThread(new Runnable() {
                    @Override
                    public void run() {
                        finish();
                    }
                });
            }
        }
    }.start();
}

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From source file:com.limegroup.gnutella.metadata.ASFParser.java

/**
 * Parses the extended content encryption object, looking for encryption's
 * we know about.//from w  w  w .j a  va2 s.  c om
 * Currently, this is Weed.
 */
private void parseExtendedContentEncryption(DataInputStream ds) throws IOException {
    LOG.debug("Parsing extended content encryption");
    int size = ByteUtils.leb2int(ds);
    if (size < 0)
        throw new IOException(
                "ASF file reports excessive length of encryption data:" + ByteUtils.uint2long(size));
    byte[] b = new byte[size];
    ds.readFully(b);
    String xml = new String(b, "UTF-16").trim();
    WRMXML wrmdata = new WRMXML(xml);
    if (!wrmdata.isValid()) {
        LOG.debug("WRM Data is invalid.");
        return;
    }

    _wrmdata = wrmdata;

    WeedInfo weed = new WeedInfo(wrmdata);
    if (weed.isValid()) {
        LOG.debug("Parsed weed data.");
        _weed = weed;
        _wrmdata = weed;
        if (_weed.getAuthor() != null)
            _artist = _weed.getAuthor();
        if (_weed.getTitle() != null)
            _title = _weed.getTitle();
        if (_weed.getDescription() != null)
            _comment = _weed.getDescription();
        if (_weed.getCollection() != null)
            _album = _weed.getCollection();
        if (_weed.getCopyright() != null)
            _copyright = _weed.getCopyright();
        return;
    }
}

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From source file:com.limegroup.gnutella.metadata.ASFParser.java

/**
 * Parses the content encryption object, to determine if the file is protected.
 * We parse through it all, even though we don't use all of it, to ensure
 * that the object is well-formed./*from   w w  w  . j  a  va  2  s.  c o  m*/
 */
private void parseContentEncryption(DataInputStream ds) throws IOException {
    LOG.debug("Parsing content encryption");
    long skipSize = ByteUtils.uint2long(ByteUtils.leb2int(ds)); // data
    IOUtils.ensureSkip(ds, skipSize);

    int typeSize = ByteUtils.leb2int(ds); // type
    if (typeSize < 0)
        throw new IOException("ASF file is corrupt.  Type size < 0: " + typeSize);
    byte[] b = new byte[typeSize];
    ds.readFully(b);
    _drmType = new String(b).trim();

    skipSize = ByteUtils.uint2long(ByteUtils.leb2int(ds)); // data
    IOUtils.ensureSkip(ds, skipSize);

    skipSize = ByteUtils.uint2long(ByteUtils.leb2int(ds)); // url
    IOUtils.ensureSkip(ds, skipSize);
}

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From source file:com.limegroup.gnutella.metadata.ASFParser.java

/**
 * Parses known information out of the Content Description object.
 * <p>//from   ww w  .  jav a2s. co m
 * The data is stored as:
 *   10 bytes of sizes (2 bytes for each size).
 *   The data corresponding to each size.  
 *   <p>
 *   The data is stored in order of:
 *   Title, Author, Copyright, Description, Rating.
 */
private void parseContentDescription(DataInputStream ds) throws IOException {
    LOG.debug("Parsing Content Description");
    int[] sizes = { -1, -1, -1, -1, -1 };

    for (int i = 0; i < sizes.length; i++)
        sizes[i] = ByteUtils.ushort2int(ByteUtils.leb2short(ds));

    byte[][] info = new byte[5][];
    for (int i = 0; i < sizes.length; i++)
        info[i] = new byte[sizes[i]];

    for (int i = 0; i < info.length; i++)
        ds.readFully(info[i]);

    _title = string(info[0]);
    _artist = string(info[1]);
    _copyright = string(info[2]);
    _comment = string(info[3]);
    _rating = string(info[4]);

    if (LOG.isDebugEnabled())
        LOG.debug("Standard Tag Values.  Title: " + _title + ", Author: " + _artist + ", Copyright: "
                + _copyright + ", Description: " + _comment + ", Rating: " + _rating);
}

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From source file:com.limegroup.gnutella.metadata.ASFParser.java

/**
 * Reads the extended Content Description object.
 * The extended tag has an arbitrary number of fields.  
 * The number of fields is stored first, as:
 *      Field Count (2 bytes)/*from w ww .jav  a  2  s  . com*/
 *<p>
 * Each field is stored as:
 * <pre>
 *      Field Size (2 bytes)
 *      Field      (Field Size bytes)
 *      Data Type  (2 bytes)
 *      Data Size  (2 bytes)
 *      Data       (Data Size bytes)
 * </pre>
 */
private void parseExtendedContentDescription(DataInputStream ds) throws IOException {
    LOG.debug("Parsing extended content description");
    int fieldCount = ByteUtils.ushort2int(ByteUtils.leb2short(ds));

    if (LOG.isDebugEnabled())
        LOG.debug("Extended fieldCount: " + fieldCount);

    for (int i = 0; i < fieldCount; i++) {
        int fieldSize = ByteUtils.ushort2int(ByteUtils.leb2short(ds));
        byte[] field = new byte[fieldSize];
        ds.readFully(field);
        String fieldName = string(field);
        int dataType = ByteUtils.ushort2int(ByteUtils.leb2short(ds));
        int dataSize = ByteUtils.ushort2int(ByteUtils.leb2short(ds));

        switch (dataType) {
        case TYPE_STRING:
            parseExtendedString(fieldName, dataSize, ds);
            break;
        case TYPE_BINARY:
            parseExtendedBinary(fieldName, dataSize, ds);
            break;
        case TYPE_BOOLEAN:
            parseExtendedBoolean(fieldName, dataSize, ds);
            break;
        case TYPE_INT:
            parseExtendedInt(fieldName, dataSize, ds);
            break;
        case TYPE_LONG:
            parseExtendedInt(fieldName, dataSize, ds);
            break;
        default:
            if (LOG.isDebugEnabled())
                LOG.debug("Unknown dataType: " + dataType + " for field: " + fieldName);
            IOUtils.ensureSkip(ds, dataSize);
        }
    }
}

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From source file:org.apache.hadoop.mapred.TestShuffleHandler.java

/**
 * Validate the ownership of the map-output files being pulled in. The
 * local-file-system owner of the file should match the user component in the
 *
 * @throws Exception exception//from   ww w.jav  a2 s.c  o  m
 */
@Test(timeout = 100000)
public void testMapFileAccess() throws IOException {
    // This will run only in NativeIO is enabled as SecureIOUtils need it
    assumeTrue(NativeIO.isAvailable());
    Configuration conf = new Configuration();
    conf.setInt(ShuffleHandler.SHUFFLE_PORT_CONFIG_KEY, 0);
    conf.setInt(ShuffleHandler.MAX_SHUFFLE_CONNECTIONS, 3);
    conf.set(CommonConfigurationKeysPublic.HADOOP_SECURITY_AUTHENTICATION, "kerberos");
    UserGroupInformation.setConfiguration(conf);
    File absLogDir = new File("target", TestShuffleHandler.class.getSimpleName() + "LocDir").getAbsoluteFile();
    conf.set(YarnConfiguration.NM_LOCAL_DIRS, absLogDir.getAbsolutePath());
    ApplicationId appId = ApplicationId.newInstance(12345, 1);
    LOG.info(appId.toString());
    String appAttemptId = "attempt_12345_1_m_1_0";
    String user = "randomUser";
    String userFolder = "randomUserFolder";
    String reducerId = "0";
    List<File> fileMap = new ArrayList<File>();
    createShuffleHandlerFiles(absLogDir, userFolder, appId.toString(), appAttemptId, conf, fileMap);
    ShuffleHandler shuffleHandler = new ShuffleHandler() {

        @Override
        protected Shuffle getShuffle(Configuration conf) {
            // replace the shuffle handler with one stubbed for testing
            return new Shuffle(conf) {

                @Override
                protected void verifyRequest(String appid, ChannelHandlerContext ctx, HttpRequest request,
                        HttpResponse response, URL requestUri) throws IOException {
                    // Do nothing.
                }

            };
        }
    };
    shuffleHandler.init(conf);
    try {
        shuffleHandler.start();
        DataOutputBuffer outputBuffer = new DataOutputBuffer();
        outputBuffer.reset();
        Token<JobTokenIdentifier> jt = new Token<JobTokenIdentifier>("identifier".getBytes(),
                "password".getBytes(), new Text(user), new Text("shuffleService"));
        jt.write(outputBuffer);
        shuffleHandler.initializeApplication(new ApplicationInitializationContext(user, appId,
                ByteBuffer.wrap(outputBuffer.getData(), 0, outputBuffer.getLength()), userFolder));
        URL url = new URL(
                "http://127.0.0.1:" + shuffleHandler.getConfig().get(ShuffleHandler.SHUFFLE_PORT_CONFIG_KEY)
                        + "/mapOutput?job=job_12345_0001&reduce=" + reducerId + "&map=attempt_12345_1_m_1_0");
        HttpURLConnection conn = (HttpURLConnection) url.openConnection();
        conn.setRequestProperty(ShuffleHeader.HTTP_HEADER_NAME, ShuffleHeader.DEFAULT_HTTP_HEADER_NAME);
        conn.setRequestProperty(ShuffleHeader.HTTP_HEADER_VERSION, ShuffleHeader.DEFAULT_HTTP_HEADER_VERSION);
        conn.connect();
        byte[] byteArr = new byte[10000];
        try {
            DataInputStream is = new DataInputStream(conn.getInputStream());
            is.readFully(byteArr);
        } catch (EOFException e) {
            // ignore
        }
        // Retrieve file owner name
        FileInputStream is = new FileInputStream(fileMap.get(0));
        String owner = NativeIO.POSIX.getFstat(is.getFD()).getOwner();
        is.close();

        String message = "Owner '" + owner + "' for path " + fileMap.get(0).getAbsolutePath()
                + " did not match expected owner '" + user + "'";
        Assert.assertTrue((new String(byteArr)).contains(message));
    } finally {
        shuffleHandler.stop();
        FileUtil.fullyDelete(absLogDir);
    }
}

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From source file:com.tealeaf.NativeShim.java

public String loadSourceFile(String url) {
    TeaLeafOptions options = context.getOptions();
    String sourceString = null;/*w w w.  j  a v  a2 s .  c  om*/
    if (options.isDevelop() && options.get("forceURL", false)) {
        // load native.js from the file system
        // read file in
        String path = resourceManager.getStorageDirectory();
        String result = null;
        DataInputStream in = null;
        try {
            File f = new File(path + url);
            byte[] buffer = new byte[(int) f.length()];
            in = new DataInputStream(new FileInputStream(f));
            in.readFully(buffer);
            result = new String(buffer);
        } catch (FileNotFoundException e) {
            logger.log("Error loading", url, "from", path);
            logger.log("File not found!");
            throw new RuntimeException("File not found in loadSourceFile");
        } catch (IOException e) {
            throw new RuntimeException("IO problem in fileToString", e);
        } finally {
            try {
                if (in != null) {
                    in.close();
                }
            } catch (IOException e) {
                logger.log(e);
            }
        }
        sourceString = result;

    } else {
        sourceString = resourceManager.getFileContents(url);
    }
    return sourceString;
}

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