Example usage for java.util Arrays copyOfRange

Introduction

In this page you can find the example usage for java.util Arrays copyOfRange.

Prototype

public static boolean[] copyOfRange(boolean[] original, int from, int to) 

Source Link

Document

Copies the specified range of the specified array into a new array.

Usage

From source file:nl.mindef.c2sc.nbs.olsr.pud.uplink.server.handlers.impl.PacketHandlerImpl.java

@Override
@Transactional/*from  www  .j  a  v a2 s  . c  o  m*/
public boolean processPacket(RelayServer relayServer, DatagramPacket packet) {
    try {
        this.txChecker.checkInTx("PacketHandler::processPacket");
    } catch (Throwable e) {
        e.printStackTrace();
    }

    long utcTimestamp = System.currentTimeMillis();
    boolean updated = false;

    if (this.logger.isDebugEnabled()) {
        this.logger.debug("[" + utcTimestamp + "] Received " + packet.getLength() + " bytes from "
                + packet.getAddress().getHostAddress() + ":" + packet.getPort());
    }

    try {
        InetAddress srcIp = packet.getAddress();
        int srcPort = packet.getPort();

        /* get sender or create */
        Sender sender = this.senders.getSender(srcIp, srcPort);
        if (sender == null) {
            sender = new Sender(srcIp, Integer.valueOf(srcPort), relayServer);
        }

        /* make sure the sender is linked to this relayServer */
        sender.setRelayServer(relayServer);

        /* get packet data */
        byte[] packetData = packet.getData();
        int packetLength = packet.getLength();

        /* parse the uplink packet for messages */
        int messageOffset = 0;
        while (messageOffset < packetLength) {
            int messageType = UplinkMessage.getUplinkMessageType(packetData, messageOffset);
            int messageLength = UplinkMessage.getUplinkMessageHeaderLength()
                    + UplinkMessage.getUplinkMessageLength(packetData, messageOffset);

            if ((messageType != UplinkMessage.getUplinkMessageTypePosition())
                    && (messageType != UplinkMessage.getUplinkMessageTypeClusterLeader())) {
                this.logger.warn("Uplink message type " + messageType + " not supported: ignored");
            } else {
                byte[] messageData = Arrays.copyOfRange(packetData, messageOffset,
                        messageOffset + messageLength);
                DumpUtil.dumpUplinkMessage(this.logger, Level.DEBUG, messageData, srcIp, srcPort, messageType,
                        utcTimestamp, "  ");

                Object msg = null;
                boolean msgCausedUpdate = false;
                if (messageType == UplinkMessage.getUplinkMessageTypePosition()) {
                    msg = new PositionUpdate(messageData, messageLength);
                    msgCausedUpdate = this.positionUpdateHandler.handlePositionMessage(sender, utcTimestamp,
                            (PositionUpdate) msg);
                } else /* if (messageType == UplinkMessage.getUplinkMessageTypeClusterLeader()) */ {
                    msg = new ClusterLeader(messageData, messageLength);
                    msgCausedUpdate = this.clusterLeaderHandler.handleClusterLeaderMessage(sender, utcTimestamp,
                            (ClusterLeader) msg);
                }
                if (msgCausedUpdate && this.useFaker) {
                    this.faker.fakeit(sender, utcTimestamp, msg);
                }
                updated = msgCausedUpdate || updated;
            }

            messageOffset += messageLength;
        }

        return updated;
    } catch (Throwable e) {
        this.logger.error("error during packet handling", e);
        return updated;
    } finally {
        if (this.useFaker) {
            this.faker.setFirstFake(false);
        }
    }
}

---

From source file:com.asakusafw.runtime.io.text.directio.AbstractTextStreamFormatTest.java

/**
 * input - w/ splitter./*from   w w w.j  a  v  a  2 s  .  co  m*/
 * @throws Exception if failed
 */
@Test
public void input_splitter_trim_around() throws Exception {
    MockFormat format = format(3).withInputSplitter(InputSplitters.byLineFeed());
    String[][] data = { { "A", "B", "C", }, { "D", "E", "F", }, { "G", "H", "I", }, };
    try (ModelInput<String[]> in = format.createInput(String[].class, "dummy", input(data), 1, 6)) {
        String[][] result = collect(3, in);
        assertThat(result, is(Arrays.copyOfRange(data, 1, 2)));
    }
}

---

From source file:de.tudarmstadt.ukp.dkpro.core.jazzy.CorrectionsContextualizer.java

protected double getSentenceProbability(List<String> words) throws AnalysisEngineProcessException {
    double sentenceProbability = 0.0;

    if (words.size() < 1) {
        return 0.0;
    }/*from   w ww . j  a  v a  2s .c om*/

    long nrOfUnigrams;
    try {
        nrOfUnigrams = provider.getNrOfTokens();
    } catch (Exception e) {
        throw new AnalysisEngineProcessException(e);
    }

    List<String> trigrams = new ArrayList<String>();

    // in the google n-grams this is not represented (only single BOS markers)
    // but I leave it in place in case we add another n-gram provider
    trigrams.add(getTrigram(BOS, BOS, words.get(0)));

    if (words.size() > 1) {
        trigrams.add(getTrigram(BOS, words.get(0), words.get(1)));
    }

    for (String trigram : new NGramStringIterable(words, 3, 3)) {
        trigrams.add(trigram);
    }

    // FIXME - implement backoff or linear interpolation

    for (String trigram : trigrams) {
        long trigramFreq = getNGramCount(trigram);

        String[] parts = StringUtils.split(trigram, " ");

        String bigram = StringUtils.join(Arrays.copyOfRange(parts, 0, 2), " ");
        long bigramFreq = getNGramCount(bigram);

        String unigram = StringUtils.join(Arrays.copyOfRange(parts, 0, 1), " ");
        long unigramFreq = getNGramCount(unigram);

        if (trigramFreq < 1) {
            trigramFreq = 1;
        }
        if (bigramFreq < 1) {
            bigramFreq = 1;
        }
        if (unigramFreq < 1) {
            unigramFreq = 1;
        }

        double trigramProb = Math.log((double) trigramFreq / bigramFreq);
        double bigramProb = Math.log((double) bigramFreq / unigramFreq);
        double unigramProb = Math.log((double) unigramFreq / nrOfUnigrams);

        double interpolated = (trigramProb + bigramProb + unigramProb) / 3.0;

        sentenceProbability += interpolated;
    }

    return Math.exp(sentenceProbability);
}

---

From source file:net.centro.rtb.monitoringcenter.MetricCollectorImpl.java

@Override
public void registerMetricSet(MetricSet metricSet, String... names) {
    Preconditions.checkNotNull(metricSet, "metricSet cannot be null");

    String namespace = null;//w  w w . ja v a2 s . c o m
    if (names != null && names.length > 0) {
        namespace = buildFullName(names[0], Arrays.copyOfRange(names, 1, names.length), null);
    }

    registerMetricSetImpl(metricSet, namespace);
}

---

From source file:co.rsk.asm.EVMDissasembler.java

void printPush(OpCode op) {
    sb.append(' ').append(op.name()).append(' ');
    int nPush = op.val() - OpCode.PUSH1.val() + 1;
    String name = null;//from w ww  .  j a v  a 2s .  co  m
    if ((block != null) && (helper != null) && (nPush == 4)) { // optimization, only find int32 label refs
        int labelId = block.getTagIdByPos(pc + 1, tagIterator);
        if (labelId >= 0) {
            name = getVisualLabelName(labelId);
            sb.append(name);
            if (printOffsets)
                sb.append(" ;");
        }
    }

    if ((printOffsets) || (name == null)) {
        byte[] data = Arrays.copyOfRange(code, pc + 1, pc + nPush + 1);
        BigInteger bi = new BigInteger(1, data);
        sb.append("0x").append(bi.toString(16));
        if (bi.bitLength() <= 32) {
            sb.append(" (").append(new BigInteger(1, data).toString()).append(") ");
        }
    }
}

---

From source file:cc.arduino.plugins.wifi101.flashers.java.WINCFlasher.java

@Override
public void uploadCertificates(String port, List<String> websites) throws Exception {
    FlasherSerialClient client = null;/*from   w  ww  .  j  a va 2  s . c o m*/
    try {
        progress(10, "Connecting to programmer...");
        client = new FlasherSerialClient();
        client.open(port, this.baudrate);
        client.hello();
        int maxPayload = client.getMaximumPayload();

        progress(20, "Reading section header");
        byte[] startPattern = client.readFlash(0x00004000, 16);

        WiFi101CertificateBundle certBundle = createBundleFromWebsites(websites);

        byte[] certData;

        if (Arrays.equals(WiFi101CertificateBundle.START_PATTERN_V0, startPattern)) {
            certData = certBundle.getEncodedV0();
        } else if (Arrays.equals(WiFi101CertificateBundle.START_PATTERN_V1, startPattern)) {
            certData = certBundle.getEncodedV1();
        } else {
            throw new Exception("Unknown starting pattern, please reflash firmware!");
        }

        int size = certData.length;
        int address = 0x00004000;
        int written = 0;

        progress(50, "Erasing target...");
        client.eraseFlash(address, size);

        while (written < size) {
            progress(60 + written * 80 / size, "Programming...");
            int len = maxPayload;
            if (written + len > size) {
                len = size - written;
            }
            client.writeFlash(address, Arrays.copyOfRange(certData, written, written + len));
            written += len;
            address += len;
        }
        progress(100, "Done!");
    } finally {
        if (client != null) {
            client.close();
        }
    }
}

---

From source file:net.devietti.ArchConfMapServlet.java

/** Fetch info for all tracked conferences from WikiCFP */
private void getconfs(HttpServletRequest req, HttpServletResponse resp) throws IOException {
    // pull conference info from WikiCFP
    List<Conf> confs = new LinkedList<Conf>();

    // NB: WikiCFP's search only recognizes the first 8 terms, so we have multiple
    // *serialized* requests :-(
    final int BATCH_SIZE = 8;
    for (int i = 0; i < CONFERENCE_NAMES.length; i += BATCH_SIZE) {
        String[] slice = Arrays.copyOfRange(CONFERENCE_NAMES, i,
                Math.min(i + BATCH_SIZE, CONFERENCE_NAMES.length));
        confs.addAll(getConfInfo(Arrays.asList(slice)));
    }//w w  w  .ja v  a  2 s.  c  om

    // sort conferences by start date
    Collections.sort(confs);

    List<Conf> toRemove = new LinkedList<Conf>();
    for (Conf c : confs) {
        DateTime now = new DateTime();
        // conference is already over; don't display it
        if (c.end.isBefore(now)) {
            toRemove.add(c);
            continue;
        }

        c.deadlineStatus = "pre";
        if (c.deadline.isBefore(now)) {
            c.deadlineStatus = "post";
        }
    }
    confs.removeAll(toRemove);

    resp.setContentType("application/json");
    resp.getWriter().println(GSON.toJson(confs));
}

---

From source file:com.datatorrent.contrib.hdht.HDHTFileAccessTest.java

private void testRandomRead(long bucketKey, FileAccessFSImpl hfa, String fileName) throws IOException {
    FileAccess.FileReader in = hfa.getReader(bucketKey, fileName);
    Slice tkey = new Slice(null, 0, 0);
    Slice tval = new Slice(null, 0, 0);

    // seek to existing key k
    // seek() method should move to key[i] where key[i] = k
    // so next "next()" would return key[i] which is equal to k
    in.seek(new Slice(new byte[] { 1 }));
    assertTrue(in.next(tkey, tval));//  w w  w  .  ja va2  s.com
    assertEquals("Value is not as expected", values[1],
            new String(Arrays.copyOfRange(tval.buffer, tval.offset, tval.offset + tval.length)));

    // If seek to non-existing key k
    // seek() method should move to key[i] where key[i-1] < k and key[i] > k
    // so next "next()"  would return first key[i] which is greater than k
    assertFalse(in.seek(new Slice(new byte[] { 2 })));
    in.next(tkey, tval);
    assertEquals("Value is not as expected", values[2],
            new String(Arrays.copyOfRange(tval.buffer, tval.offset, tval.offset + tval.length)));
    in.close();
}

---

From source file:com.ibm.cics.ca1y.Util.java

/**
 * Return a string of hexadecimal of byteArray. If the length of byteArray
 * is greater than 16, return the first 8 bytes + "..." + the last 8 bytes.
 * //  ww w  .  j  a  v  a  2 s .  co  m
 * @param byteArray
 *            - byte array to use.
 * @return String of hexadecimal.
 */
public static String getHexSummary(byte[] byteArray) {
    if (byteArray == null) {
        return "";
    }

    if (byteArray.length <= 16) {
        return getHex(byteArray);
    }

    // H
    return getHex(Arrays.copyOfRange(byteArray, 0, 8)) + "..."
            + getHex(Arrays.copyOfRange(byteArray, byteArray.length - 8, byteArray.length));
}

---

From source file:eu.bittrade.libs.steemj.protocol.PublicKey.java

/**
 * Recreate the address from the public key.
 * /*from www  . ja  v a 2s .  c o m*/
 * @return The address.
 */
@JsonIgnore
public String getAddressFromPublicKey() {
    try {
        // Recreate the address from the public key.
        return this.prefix + Base58.encode(Bytes.concat(this.toByteArray(),
                Arrays.copyOfRange(calculateChecksum(this.toByteArray()), 0, CHECKSUM_BYTES)));
    } catch (SteemInvalidTransactionException | NullPointerException e) {
        LOGGER.debug("An error occured while generating an address from a public key.", e);
        return "";
    }
}

---

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