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:com.sshtools.appframework.ui.IconStore.java

private Icon get(String name, int size, String cacheKey, FileObject file)
        throws FileSystemException, IOException {
    Icon icon;//from  w  ww.  j  av  a 2s  .c  o m
    if (file.getName().getBaseName().toLowerCase().endsWith(".svg")) {
        InputStream in = file.getContent().getInputStream();
        try {
            icon = new SVGIcon(name + "-" + size, in, size, size);
        } finally {
            in.close();
        }
    } else {
        DataInputStream din = new DataInputStream(file.getContent().getInputStream());
        try {
            byte[] imgData = new byte[(int) file.getContent().getSize()];
            din.readFully(imgData);
            icon = new ImageIcon(imgData);
        } finally {
            din.close();
        }
    }
    if (icon.getIconWidth() != size && icon instanceof ImageIcon) {
        Image img = ((ImageIcon) icon).getImage();
        img = img.getScaledInstance(size, size, Image.SCALE_SMOOTH);
        icon = new ImageIcon(img);
    }
    cache.put(cacheKey, icon);
    return icon;
}

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From source file:org.apache.hadoop.hdfs.TestDataTransferProtocol.java

private void sendRecvData(String testDescription, boolean eofExpected) throws IOException {
    /* Opens a socket to datanode
     * sends the data in sendBuf.//w  ww .j  a  v a2 s. c  om
     * If there is data in expectedBuf, expects to receive the data
     *     from datanode that matches expectedBuf.
     * If there is an exception while recieving, throws it
     *     only if exceptionExcepted is false.
     */

    Socket sock = null;
    try {

        if (testDescription != null) {
            LOG.info("Testing : " + testDescription);
        }
        sock = new Socket();
        sock.connect(dnAddr, HdfsConstants.READ_TIMEOUT);
        sock.setSoTimeout(HdfsConstants.READ_TIMEOUT);

        OutputStream out = sock.getOutputStream();
        // Should we excuse 
        byte[] retBuf = new byte[recvBuf.size()];

        DataInputStream in = new DataInputStream(sock.getInputStream());
        out.write(sendBuf.toByteArray());
        try {
            in.readFully(retBuf);
        } catch (EOFException eof) {
            if (eofExpected) {
                LOG.info("Got EOF as expected.");
                return;
            }
            throw eof;
        }
        for (int i = 0; i < retBuf.length; i++) {
            System.out.print(retBuf[i]);
        }
        System.out.println(":");

        if (eofExpected) {
            throw new IOException("Did not recieve IOException when an exception "
                    + "is expected while reading from " + datanode.getName());
        }

        byte[] needed = recvBuf.toByteArray();
        for (int i = 0; i < retBuf.length; i++) {
            System.out.print(retBuf[i]);
            assertEquals("checking byte[" + i + "]", needed[i], retBuf[i]);
        }
    } finally {
        IOUtils.closeSocket(sock);
    }
}

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From source file:it.jnrpe.net.JNRPEProtocolPacket.java

/**
 * Loads the packet from the given input stream.
 * /*from w ww . j  a  va2 s .c o m*/
 * @param in the packet input stream
        
 * @throws IOException on any error */
protected void fromInputStream(final InputStream in) throws IOException {
    DataInputStream din = new DataInputStream(in);
    packetVersion = din.readShort();
    packetTypeCode = din.readShort();
    crcValue = din.readInt();
    resultCode = din.readShort();
    din.readFully(byteBufferAry);
    din.readFully(dummyBytesAry);
}

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From source file:org.apache.nifi.distributed.cache.client.DistributedMapCacheClientService.java

private byte[] readLengthDelimitedResponse(final DataInputStream dis) throws IOException {
    final int responseLength = dis.readInt();
    final byte[] responseBuffer = new byte[responseLength];
    dis.readFully(responseBuffer);
    return responseBuffer;
}

---

From source file:com.jivesoftware.os.amza.service.replication.http.endpoints.AmzaReplicationRestEndpoints.java

@POST
@Consumes(MediaType.APPLICATION_OCTET_STREAM)
@Produces(MediaType.APPLICATION_OCTET_STREAM)
@Path("/ackBatch")
public Response ackBatch(InputStream is) {
    try {/*from w ww  .j a v a  2 s  .co  m*/

        DataInputStream in = new DataInputStream(is);
        try {

            while (in.readByte() == 1) {

                int length = in.readShort();
                byte[] bytes = new byte[length];
                in.readFully(bytes);
                VersionedPartitionName versionedPartitionName = amzaInterner.internVersionedPartitionName(bytes,
                        0, length);

                length = in.readShort();
                bytes = new byte[length];
                in.readFully(bytes);
                RingMember ringMember = amzaInterner.internRingMember(bytes, 0, length);

                long takeSessionId = in.readLong();
                long takeSharedKey = in.readLong();
                long txId = in.readLong();
                long leadershipToken = in.readLong();

                amzaInstance.rowsTaken(ringMember, takeSessionId, takeSharedKey, versionedPartitionName, txId,
                        leadershipToken);

            }

            if (in.readByte() == 1) {
                int length = in.readShort();
                byte[] bytes = new byte[length];
                in.readFully(bytes);
                RingMember ringMember = amzaInterner.internRingMember(bytes, 0, length);

                long takeSessionId = in.readLong();
                long takeSharedKey = in.readLong();

                amzaInstance.pong(ringMember, takeSessionId, takeSharedKey);
            }

            return Response.ok(conf.asByteArray(Boolean.TRUE)).build();

        } finally {
            try {
                in.close();
            } catch (Exception x) {
                LOG.error("Failed to close input stream", x);
            }
        }

    } catch (Exception x) {
        LOG.warn("Failed ackBatch", x);
        return ResponseHelper.INSTANCE.errorResponse("Failed ackBatch.", x);
    } finally {
        amzaStats.pongsReceived.increment();
    }
}

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From source file:org.veronicadb.core.memorygraph.storage.SimpleLocalFileStorageSink.java

protected String readElementLabel(DataInputStream stream) throws IOException {
    int val = stream.readInt();
    if (val == -1) {
        return null;
    } else {//from  w  ww .  j a  v a 2s  .c o m
        byte[] label = new byte[val];
        stream.readFully(label);
        return new String(label);
    }
}

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From source file:org.apache.jackrabbit.core.journal.FileRecordLog.java

/**
 * Read signature and major/minor version of file and verify.
 *
 * @param in input stream//from  w  ww. ja v a2  s.c o m
 * @throws java.io.IOException if an I/O error occurs or the file does
 *                     not have a valid header.
 */
private void readHeader(DataInputStream in) throws IOException {
    byte[] signature = new byte[SIGNATURE.length];
    in.readFully(signature);

    for (int i = 0; i < SIGNATURE.length; i++) {
        if (signature[i] != SIGNATURE[i]) {
            String msg = "Record log '" + logFile.getPath() + "' has wrong signature: "
                    + toHexString(signature);
            throw new IOException(msg);
        }
    }

    major = in.readShort();
    if (major != MAJOR_VERSION) {
        String msg = "Record log '" + logFile.getPath() + "' has incompatible major version: " + major;
        throw new IOException(msg);
    }
    minor = in.readShort();
}

---

From source file:com.axelor.apps.account.service.payment.PayboxService.java

/** Chargement de la cle AU FORMAT der
  * Utliser la commande suivante pour 'convertir' la cl 'pem' en 'der'
  * openssl rsa -inform PEM -in pubkey.pem -outform DER -pubin -out pubkey.der
  */*w w  w.j a v a2 s. c  o  m*/
  * @param pubKeyFile
  * @return
  * @throws Exception
  */
@Deprecated
private PublicKey getPubKeyDer(String pubKeyPath) throws Exception {

    FileInputStream fis = new FileInputStream(pubKeyPath);
    DataInputStream dis = new DataInputStream(fis);

    byte[] pubKeyBytes = new byte[fis.available()];

    dis.readFully(pubKeyBytes);
    fis.close();
    dis.close();

    KeyFactory keyFactory = KeyFactory.getInstance(this.ENCRYPTION_ALGORITHM);

    // extraction cle
    X509EncodedKeySpec pubSpec = new X509EncodedKeySpec(pubKeyBytes);
    return keyFactory.generatePublic(pubSpec);

}

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From source file:com.bonsai.wallet32.WalletApplication.java

public List<WalletEntry> loadWalletDirectory() {
    File walletDirFile = new File(getFilesDir(), getWalletPrefix() + ".walletdir");

    try {/*from w  ww.  j a v  a2s  .  c  o  m*/
        int len = (int) walletDirFile.length();
        DataInputStream dis = new DataInputStream(new FileInputStream(walletDirFile));
        byte[] jsondata = new byte[len];
        dis.readFully(jsondata);
        String jsonstr = new String(jsondata);
        mLogger.info("loading: " + jsonstr);
        JSONObject rootobj = new JSONObject(jsonstr);
        JSONArray listobj = rootobj.getJSONArray("wallets");
        ArrayList<WalletEntry> wallets = new ArrayList<WalletEntry>();
        for (int ii = 0; ii < listobj.length(); ++ii)
            wallets.add(WalletEntry.loadJSON(listobj.getJSONObject(ii)));
        return wallets;
    } catch (Exception ex) {
        mLogger.error("loadWalletDirectory failed: " + ex.toString());
        throw new RuntimeException(ex);
    }
}

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From source file:org.dspace.installer_edm.InstallerCrosswalk.java

/**
 * Aade contenido archivo class a nuevo archivo class en el jar
 *
 * @param jarOutputStream flujo de escritura para el jar
 * @throws IOException/*from  www .ja  v a  2s  .co m*/
 */
protected void addClass2Jar(JarOutputStream jarOutputStream) throws IOException {
    File file = new File(myInstallerWorkDirPath + fileSeparator + edmCrossWalkClass);
    byte[] fileData = new byte[(int) file.length()];
    DataInputStream dis = new DataInputStream(new FileInputStream(file));
    dis.readFully(fileData);
    dis.close();
    jarOutputStream.putNextEntry(new JarEntry(edmCrossWalkClass));
    jarOutputStream.write(fileData);
    jarOutputStream.closeEntry();
}

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