Example usage for java.nio ByteBuffer wrap

List of usage examples for java.nio ByteBuffer wrap

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Introduction

In this page you can find the example usage for java.nio ByteBuffer wrap.

Prototype

public static ByteBuffer wrap(byte[] array)

Source Link

Document

Creates a new byte buffer by wrapping the given byte array.

Usage

From source file:org.apache.cxf.transport.http.asyncclient.CXFHttpAsyncRequestProducer.java

public void produceContent(final ContentEncoder enc, final IOControl ioc) throws IOException {
    if (content != null) {
        if (buffer == null) {
            if (content.getTempFile() == null) {
                buffer = ByteBuffer.wrap(content.getBytes());
            } else {
                fis = content.getInputStream();
                chan = (fis instanceof FileInputStream) ? ((FileInputStream) fis).getChannel()
                        : Channels.newChannel(fis);
                buffer = ByteBuffer.allocate(8 * 1024);
            }//from  www  .j a  v  a2  s .c  o  m
        }
        int i = -1;
        buffer.rewind();
        if (buffer.hasRemaining() && chan != null) {
            i = chan.read(buffer);
            buffer.flip();
        }
        enc.write(buffer);
        if (!buffer.hasRemaining() && i == -1) {
            enc.complete();
        }
    } else {
        buf.produceContent(enc, ioc);
    }
}

From source file:com.cloudera.recordbreaker.learnstructure.test.GenerateRandomData.java

Object generateData(Schema s) {
    Schema.Type stype = s.getType();
    if (stype == Schema.Type.ARRAY) {
        Schema arrayS = s.getElementType();
        int numElts = 1 + r.nextInt(100);
        GenericData.Array result = new GenericData.Array(numElts, arrayS);
        for (int i = 0; i < numElts; i++) {
            result.add(generateData(arrayS));
        }/*  w ww. java2 s.  c  om*/
        return arrayS;
    } else if (stype == Schema.Type.BOOLEAN) {
        return r.nextInt(2) == 0 ? new Boolean(true) : new Boolean(false);
    } else if (stype == Schema.Type.BYTES) {
        return ByteBuffer.wrap(new byte[16]);
    } else if (stype == Schema.Type.DOUBLE) {
        return new Double(r.nextDouble());
    } else if (stype == Schema.Type.ENUM) {
        List<String> symbols = s.getEnumSymbols();
        return symbols.get(r.nextInt(symbols.size()));
    } else if (stype == Schema.Type.FIXED) {
        return new GenericData.Fixed(s, new byte[16]);
    } else if (stype == Schema.Type.FLOAT) {
        return new Float(r.nextFloat());
    } else if (stype == Schema.Type.INT) {
        return new Integer(r.nextInt());
    } else if (stype == Schema.Type.LONG) {
        return new Long(r.nextLong());
    } else if (stype == Schema.Type.MAP) {
        HashMap<Utf8, Object> result = new HashMap<Utf8, Object>();
        Schema valType = s.getValueType();
        int maxElts = 1 + r.nextInt(100);
        for (int i = 0; i < maxElts; i++) {
            result.put(new Utf8("label-" + i), generateData(valType));
        }
        return result;
    } else if (stype == Schema.Type.NULL) {
        return null;
    } else if (stype == Schema.Type.RECORD) {
        GenericData.Record result = new GenericData.Record(s);
        for (Schema.Field f : s.getFields()) {
            result.put(f.name(), generateData(f.schema()));
        }
        return result;
    } else if (stype == Schema.Type.STRING) {
        return new Utf8("Rand-" + r.nextInt());
    } else if (stype == Schema.Type.UNION) {
        List<Schema> types = s.getTypes();
        return generateData(types.get(r.nextInt(types.size())));
    }
    return null;
}

From source file:com.buaa.cfs.common.oncrpc.XDR.java

/**
 * Wraps a byte array as a read-only XDR message. There's no copy involved,
 * thus it is the client's responsibility to ensure that the byte array
 * remains unmodified when using the XDR object.
 *
 * @param src/*  www . ja v a2 s .c  o  m*/
 *          the byte array to be wrapped.
 */
public XDR(byte[] src) {
    this(ByteBuffer.wrap(src).asReadOnlyBuffer(), State.READING);
}

From source file:com.sm.store.Utils.java

public static Value bytesToValue(byte[] bytes) {
    int len = bytes.length;
    ByteBuffer buf = ByteBuffer.wrap(bytes);
    long ver = buf.getLong();
    short node = buf.getShort();
    byte[] data = new byte[len - 10];
    buf.get(data);//from  w  w  w  . j  a v a2s  .c  om
    return CacheValue.createValue(data, ver, node);
}

From source file:io.druid.segment.data.VSizeIndexedIntsWriterTest.java

private void checkSerializedSizeAndData() throws Exception {
    int maxValue = vals.length == 0 ? 0 : Ints.max(vals);
    VSizeIndexedIntsWriter writer = new VSizeIndexedIntsWriter(ioPeon, "test", maxValue);

    VSizeIndexedInts intsFromList = VSizeIndexedInts.fromList(Ints.asList(vals), maxValue);
    writer.open();/* w w  w  . j ava  2  s.c  o m*/
    for (int val : vals) {
        writer.add(val);
    }
    writer.close();
    long writtenLength = writer.getSerializedSize();
    final WritableByteChannel outputChannel = Channels.newChannel(ioPeon.makeOutputStream("output"));
    writer.writeToChannel(outputChannel);
    outputChannel.close();

    assertEquals(writtenLength, intsFromList.getSerializedSize());

    // read from ByteBuffer and check values
    VSizeIndexedInts intsFromByteBuffer = VSizeIndexedInts
            .readFromByteBuffer(ByteBuffer.wrap(IOUtils.toByteArray(ioPeon.makeInputStream("output"))));
    assertEquals(vals.length, intsFromByteBuffer.size());
    for (int i = 0; i < vals.length; ++i) {
        assertEquals(vals[i], intsFromByteBuffer.get(i));
    }
}

From source file:gridool.communication.transport.tcp.GridNioClient.java

private static ByteBuffer toBuffer(final GridCommunicationMessage msg) {
    final byte[] b = GridUtils.toBytes(msg);
    final ByteBuffer buf = ByteBuffer.wrap(b);
    return buf;/*from  www  .  j  av  a 2s.  c o m*/
}

From source file:de.cosmocode.palava.store.CacheServiceStore.java

@Override
public ByteBuffer view(String identifier) throws IOException {
    Preconditions.checkNotNull(identifier, "Identifier");
    LOG.trace("Reading data from {}", identifier);
    final byte[] data = cache.read(identifier);
    Preconditions.checkState(data != null, "Unknown identifier %s", identifier);
    return ByteBuffer.wrap(data);
}

From source file:com.caricah.iotracah.server.httpserver.transform.HttpIOTTransformerImpl.java

@Override
public IOTMessage toIOTMessage(FullHttpMessage serverMessage) {

    if (serverMessage instanceof FullHttpRequest) {

        FullHttpRequest request = (FullHttpRequest) serverMessage;
        final String content = request.content().toString(CharsetUtil.UTF_8);
        final JSONObject json = new JSONObject(content);

        log.debug(" toIOTMessage : received content {} ", content);

        final String path = request.uri().toUpperCase();

        switch (path) {

        case "/CONNECT":

            boolean isAnnonymousConnect = (!json.has("username") && !json.has("password"));

            int keepAliveTime = json.has("keepAliveTime") ? json.getInt("keepAliveTime") : 0;

            return ConnectMessage.from(false, 1, false, "MQTT", 4, false, isAnnonymousConnect,
                    json.getString("clientId"), json.has("username") ? json.getString("username") : "",
                    json.has("password") ? json.getString("password") : "", keepAliveTime, "");

        case "/PUBLISH":

            ByteBuffer byteBuffer = ByteBuffer.wrap(json.getString("payload").getBytes());

            PublishMessage publishMessage = PublishMessage.from(json.getInt("messageId"),
                    json.has("dup") && json.getBoolean("dup"), 1,
                    json.has("retain") && json.getBoolean("retain"), json.getString("topic"), byteBuffer, true);

            publishMessage.setSessionId(json.getString("sessionId"));
            publishMessage.setAuthKey(json.getString("authKey"));
            return publishMessage;

        case "/SUBSCRIBE":

            SubscribeMessage subscribeMessage = SubscribeMessage.from(1, false, 1, false);

            JSONArray jsonTopicQosList = json.getJSONArray("topicQosList");
            for (int i = 0; i < jsonTopicQosList.length(); i++) {
                JSONObject topicQos = jsonTopicQosList.getJSONObject(i);

                String topic = topicQos.getString("topic");
                int qos = topicQos.getInt("qos");

                Map.Entry<String, Integer> entry = new AbstractMap.SimpleEntry<>(topic, qos);
                subscribeMessage.getTopicFilterList().add(entry);
            }/*  w  w w  . j ava2s .com*/
            subscribeMessage.setReceptionUrl(json.getString("recipientUrl"));
            subscribeMessage.setSessionId(json.getString("sessionId"));
            subscribeMessage.setAuthKey(json.getString("authKey"));

            return subscribeMessage;

        case "/UNSUBSCRIBE":

            List<String> topicList = new ArrayList<>();
            JSONArray jsonTopicList = json.getJSONArray("topicList");
            for (int i = 0; i < jsonTopicList.length(); i++) {
                String topic = jsonTopicList.getString(i);
                topicList.add(topic);
            }

            UnSubscribeMessage unSubscribeMessage = UnSubscribeMessage.from(1, false, 1, false, topicList);
            unSubscribeMessage.setSessionId(json.getString("sessionId"));
            unSubscribeMessage.setAuthKey(json.getString("authKey"));

        case "/DISCONNECT":

            DisconnectMessage disconMessage = DisconnectMessage.from(false);
            disconMessage.setSessionId(json.getString("sessionId"));
            disconMessage.setAuthKey(json.getString("authKey"));

            return disconMessage;

        default:
            return null;
        }

    }

    return null;
}

From source file:com.cloudera.flume.handlers.avro.AvroEventAdaptor.java

public static AvroFlumeEvent convert(Event e) {
    AvroFlumeEvent tempAvroEvt = new AvroFlumeEvent();

    tempAvroEvt.timestamp = e.getTimestamp();
    tempAvroEvt.priority = convert(e.getPriority());
    ByteBuffer bbuf = ByteBuffer.wrap(e.getBody());

    tempAvroEvt.body = bbuf;//w w  w. j  a v a  2s .com
    tempAvroEvt.nanos = e.getNanos();
    tempAvroEvt.host = e.getHost();

    tempAvroEvt.fields = new HashMap<CharSequence, ByteBuffer>();
    for (String s : e.getAttrs().keySet()) {
        // wrap a ByteBuffer around e.getAttrs().get(s)
        // also note that e.getAttrs().get(s) is immutable
        ByteBuffer temp = ByteBuffer.wrap(e.getAttrs().get(s));
        tempAvroEvt.fields.put(s, temp);
    }
    return tempAvroEvt;
}

From source file:de.cosmocode.palava.store.MemoryStore.java

@Override
public ByteBuffer view(String identifier) throws IOException {
    Preconditions.checkNotNull(identifier, "Identifier");
    LOG.trace("Reading data from {}", identifier);
    final byte[] data = map.get(identifier);
    Preconditions.checkState(data != null, "Unknown identifier %s", identifier);
    return ByteBuffer.wrap(data);
}