Example usage for java.nio ByteBuffer array

List of usage examples for java.nio ByteBuffer array

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Introduction

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

Prototype

public final byte[] array()

Source Link

Document

Returns the byte array which this buffer is based on, if there is one.

Usage

From source file:cn.ac.ncic.mastiff.io.coding.DictionaryBitPackingRLEIntReader.java

@Override
public byte[] ensureDecompressed() throws IOException {
    FlexibleEncoding.ORC.DynamicByteArray dynamicBuffer = new FlexibleEncoding.ORC.DynamicByteArray();
    dynamicBuffer.add(inBuf.getData(), 12, inBuf.getLength() - 12);
    ByteBuffer byteBuf = ByteBuffer.allocate(dynamicBuffer.size());
    dynamicBuffer.setByteBuffer(byteBuf, 0, dynamicBuffer.size());
    byteBuf.flip();//from  w w  w . j a v a2  s  . co  m
    DataInputBuffer dib = new DataInputBuffer();
    dib.reset(byteBuf.array(), 0, byteBuf.array().length);
    int dictionarySize = dib.readInt();
    int OnlydictionarySize = dib.readInt();
    dib.reset(byteBuf.array(), 8, dictionarySize - 4);
    byte[] dictionaryBuffer = dib.getData();
    dib.reset(byteBuf.array(), 4 + dictionarySize, (byteBuf.array().length - dictionarySize - 4));
    byte[] dictionaryId = dib.getData();
    dib.close();
    DictionaryValuesReader cr = initDicReader(OnlydictionarySize, dictionaryBuffer,
            PrimitiveType.PrimitiveTypeName.INT32);
    cr.initFromPage(numPairs, dictionaryId, 0);
    DataOutputBuffer decoding = new DataOutputBuffer();
    decoding.writeInt(decompressedSize);
    decoding.writeInt(numPairs);
    decoding.writeInt(startPos);
    for (int i = 0; i < numPairs; i++) {
        int tmp = cr.readInteger();
        decoding.writeInt(tmp);
    }
    byteBuf.clear();
    inBuf.close();
    return decoding.getData();
}

From source file:cn.ac.ncic.mastiff.io.coding.DictionaryBitPackingRLEByteReader.java

@Override
public byte[] ensureDecompressed() throws IOException {
    FlexibleEncoding.ORC.DynamicByteArray dynamicBuffer = new FlexibleEncoding.ORC.DynamicByteArray();
    dynamicBuffer.add(inBuf.getData(), 12, inBuf.getLength() - 12);
    ByteBuffer byteBuf = ByteBuffer.allocate(dynamicBuffer.size());
    dynamicBuffer.setByteBuffer(byteBuf, 0, dynamicBuffer.size());
    byteBuf.flip();//from  w  ww  .  j ava2s  . c  o  m
    DataInputBuffer dib = new DataInputBuffer();
    dib.reset(byteBuf.array(), 0, byteBuf.array().length);
    int dictionarySize = dib.readInt();
    int OnlydictionarySize = dib.readInt();
    dib.reset(byteBuf.array(), 8, dictionarySize - 4);
    byte[] dictionaryBuffer = dib.getData();
    dib.reset(byteBuf.array(), 4 + dictionarySize, (byteBuf.array().length - dictionarySize - 4));
    byte[] dictionaryId = dib.getData();
    dib.close();
    DictionaryValuesReader cr = initDicReader(OnlydictionarySize, dictionaryBuffer,
            PrimitiveType.PrimitiveTypeName.BINARY);
    cr.initFromPage(numPairs, dictionaryId, 0);
    DataOutputBuffer decoding = new DataOutputBuffer();
    decoding.writeInt(decompressedSize);
    decoding.writeInt(numPairs);
    decoding.writeInt(startPos);
    for (int i = 0; i < numPairs; i++) {
        byte tmp = Byte.parseByte(cr.readBytes().toStringUsingUTF8());
        decoding.writeInt(tmp);
    }
    byteBuf.clear();
    inBuf.close();
    return decoding.getData();

}

From source file:cn.ac.ncic.mastiff.io.coding.DictionaryBitPackingRLEIntReader.java

public byte[] CompressensureDecompressed() throws IOException {
    FlexibleEncoding.ORC.DynamicByteArray dynamicBuffer = new FlexibleEncoding.ORC.DynamicByteArray();
    dynamicBuffer.add(inBuf.getData(), 0, inBuf.getLength());
    ByteBuffer byteBuf = ByteBuffer.allocate(dynamicBuffer.size());
    dynamicBuffer.setByteBuffer(byteBuf, 0, dynamicBuffer.size());
    byteBuf.flip();/*from ww  w  .j a  va2  s.  co  m*/
    DataInputBuffer dib = new DataInputBuffer();
    dib.reset(byteBuf.array(), 0, byteBuf.array().length);
    int dictionarySize = dib.readInt();
    int OnlydictionarySize = dib.readInt();
    dib.reset(byteBuf.array(), 8, dictionarySize - 4);
    byte[] dictionaryBuffer = dib.getData();
    dib.reset(byteBuf.array(), 4 + dictionarySize, (byteBuf.array().length - dictionarySize - 4));
    byte[] dictionaryId = dib.getData();
    dib.close();
    DictionaryValuesReader cr = initDicReader(OnlydictionarySize, dictionaryBuffer,
            PrimitiveType.PrimitiveTypeName.INT32);
    cr.initFromPage(numPairs, dictionaryId, 0);
    DataOutputBuffer decoding = new DataOutputBuffer();
    decoding.writeInt(decompressedSize);
    decoding.writeInt(numPairs);
    decoding.writeInt(startPos);
    for (int i = 0; i < numPairs; i++) {
        int tmp = cr.readInteger();
        decoding.writeInt(tmp);
    }
    byteBuf.clear();

    inBuf.close();
    return decoding.getData();

}

From source file:au.org.ala.delta.io.BinFile.java

protected byte[] readBytes(int count) {
    ByteBuffer b = readByteBuffer(count);
    _stats.ReadBytes++;//  w w w .j av a2s  . c  o  m
    return b.array();
}

From source file:mobisocial.musubi.nearby.scanner.GpsScannerTask.java

@Override
protected List<NearbyItem> doInBackground(Void... params) {
    if (DBG)/*from w  w  w .ja v  a  2  s .  c o  m*/
        Log.d(TAG, "Scanning for nearby gps...");
    while (!mmLocationScanComplete) {
        synchronized (mmLocationResult) {
            if (!mmLocationScanComplete) {
                try {
                    if (DBG)
                        Log.d(TAG, "Waiting for location results...");
                    mmLocationResult.wait();
                } catch (InterruptedException e) {
                }
            }
        }
    }
    if (DBG)
        Log.d(TAG, "Got location " + mmLocation);
    if (isCancelled()) {
        return null;
    }

    try {
        if (DBG)
            Log.d(TAG, "Querying gps server...");
        Uri uri = Uri.parse("http://bumblebee.musubi.us:6253/nearbyapi/0/findgroup");

        StringBuffer sb = new StringBuffer();
        DefaultHttpClient client = new DefaultHttpClient();
        HttpPost httpPost = new HttpPost(uri.toString());
        httpPost.addHeader("Content-Type", "application/json");
        JSONArray buckets = new JSONArray();

        double lat = mmLocation.getLatitude();
        double lng = mmLocation.getLongitude();

        long[] coords = GridHandler.getGridCoords(lat, lng, 5280 / 2);
        Log.i(TAG, "coords: " + Arrays.toString(coords));

        //TODO: encrypt coords with mmPassword

        for (long c : coords) {
            MessageDigest md;
            try {
                byte[] obfuscate = ("sadsalt193s" + mmPassword).getBytes();
                md = MessageDigest.getInstance("SHA-256");
                ByteBuffer b = ByteBuffer.allocate(8 + obfuscate.length);
                b.putLong(c);
                b.put(obfuscate);
                String secret_bucket = Base64.encodeToString(md.digest(b.array()), Base64.DEFAULT);
                buckets.put(buckets.length(), secret_bucket);
            } catch (NoSuchAlgorithmException e) {
                throw new RuntimeException("your platform does not support sha256", e);
            }
        }
        Log.i(TAG, "buckets: " + buckets);
        httpPost.setEntity(new StringEntity(buckets.toString()));
        try {
            HttpResponse execute = client.execute(httpPost);
            InputStream content = execute.getEntity().getContent();
            BufferedReader buffer = new BufferedReader(new InputStreamReader(content));
            String s = "";
            while ((s = buffer.readLine()) != null) {
                if (isCancelled()) {
                    return null;
                }
                sb.append(s);
            }
        } catch (Exception e) {
            e.printStackTrace();
        }
        HashSet<Pair<TByteArrayList, TByteArrayList>> dupes = new HashSet<Pair<TByteArrayList, TByteArrayList>>();

        String response = sb.toString();
        JSONArray groupsJSON = new JSONArray(response);
        Log.d(TAG, "Got " + groupsJSON.length() + " groups");
        for (int i = 0; i < groupsJSON.length(); i++) {
            try {
                String s_enc_data = groupsJSON.get(i).toString();
                byte[] enc_data = Base64.decode(s_enc_data, Base64.DEFAULT);
                byte[] key = Util.sha256(("happysalt621" + mmPassword).getBytes());
                byte[] data;

                Cipher cipher;
                AlgorithmParameterSpec iv_spec;
                SecretKeySpec sks;
                try {
                    cipher = Cipher.getInstance("AES/CBC/PKCS7Padding");
                } catch (Exception e) {
                    throw new RuntimeException("AES not supported on this platform", e);
                }
                try {
                    iv_spec = new IvParameterSpec(enc_data, 0, 16);
                    sks = new SecretKeySpec(key, "AES");
                    cipher.init(Cipher.DECRYPT_MODE, sks, iv_spec);
                } catch (Exception e) {
                    throw new RuntimeException("bad iv or key", e);
                }
                try {
                    data = cipher.doFinal(enc_data, 16, enc_data.length - 16);
                } catch (Exception e) {
                    throw new RuntimeException("body decryption failed", e);
                }

                JSONObject group = new JSONObject(new String(data));

                String group_name = group.getString("group_name");
                byte[] group_capability = Base64.decode(group.getString("group_capability"), Base64.DEFAULT);
                String sharer_name = group.getString("sharer_name");
                byte[] sharer_hash = Base64.decode(group.getString("sharer_hash"), Base64.DEFAULT);
                byte[] thumbnail = null;
                if (group.has("thumbnail"))
                    thumbnail = Base64.decode(group.getString("thumbnail"), Base64.DEFAULT);
                int member_count = group.getInt("member_count");
                int sharer_type = group.getInt("sharer_type");
                Pair<TByteArrayList, TByteArrayList> p = Pair.with(new TByteArrayList(sharer_hash),
                        new TByteArrayList(group_capability));
                if (dupes.contains(p))
                    continue;
                dupes.add(p);
                addNearbyItem(new NearbyFeed(mContext, group_name, group_capability, sharer_name,
                        Authority.values()[sharer_type], sharer_hash, thumbnail, member_count));
            } catch (Throwable e) {
                Log.e(TAG, "Failed to parse group " + i, e);
            }
        }
    } catch (Exception e) {
        if (DBG)
            Log.d(TAG, "Error searching nearby feeds", e);
    }
    return null;
}

From source file:com.buaa.cfs.nfs3.WriteCtx.java

public void writeData(DataOutputStream fos) throws IOException {
    Preconditions.checkState(fos != null);

    ByteBuffer dataBuffer;
    try {//ww  w . j a  v  a 2s  .  com
        dataBuffer = getData();
    } catch (Exception e1) {
        LOG.error("Failed to get request data offset:" + offset + " count:" + count + " error:" + e1);
        throw new IOException("Can't get WriteCtx.data");
    }

    byte[] data = dataBuffer.array();
    int position = dataBuffer.position();
    int limit = dataBuffer.limit();
    Preconditions.checkState(limit - position == count);
    // Modified write has a valid original count
    if (position != 0) {
        if (limit != getOriginalCount()) {
            throw new IOException("Modified write has differnt original size." + "buff position:" + position
                    + " buff limit:" + limit + ". " + toString());
        }
    }

    // Now write data
    //        fos.write(data, position, count);
}

From source file:com.l2jfree.gameserver.network.L2Client.java

@Override
public boolean decrypt(ByteBuffer buf, int size) {
    getCrypt().decrypt(buf.array(), buf.position(), size);
    return true;/* w  ww .java 2  s. co m*/
}

From source file:com.rackspacecloud.blueflood.io.serializers.SerializationTest.java

@Test
public void testRollupSerializationAndDeserialization() throws IOException {
    // works the same way as testFullResSerializationAndDeserialization

    if (System.getProperty("GENERATE_ROLLUP_SERIALIZATION") != null) {
        OutputStream os = new FileOutputStream(
                "src/test/resources/serializations/rollup_version_" + Constants.VERSION_1_ROLLUP + ".bin",
                false);//from   w  w  w.  ja  va 2 s  .c o m
        for (BasicRollup basicRollup : TO_SERIALIZE_BASIC_ROLLUP) {
            ByteBuffer bb = NumericSerializer.serializerFor(BasicRollup.class).toByteBuffer(basicRollup);
            os.write(Base64.encodeBase64(bb.array()));
            os.write("\n".getBytes());
        }
        os.close();
    }

    Assert.assertTrue(new File("src/test/resources/serializations").exists());

    // ensure we can read historical serializations.
    int version = 0;
    int maxVersion = Constants.VERSION_1_ROLLUP;
    while (version <= maxVersion) {
        BufferedReader reader = new BufferedReader(
                new FileReader("src/test/resources/serializations/rollup_version_" + version + ".bin"));
        for (int i = 0; i < TO_SERIALIZE_BASIC_ROLLUP.length; i++) {
            for (Granularity g : Granularity.rollupGranularities()) {
                ByteBuffer bb = ByteBuffer.wrap(Base64.decodeBase64(reader.readLine().getBytes()));
                BasicRollup basicRollup = (BasicRollup) NumericSerializer.serializerFor(BasicRollup.class)
                        .fromByteBuffer(bb);
                Assert.assertTrue(String.format("Deserialization for rollup broken at %d", version),
                        TO_SERIALIZE_BASIC_ROLLUP[i].equals(basicRollup));
            }
            version += 1;
        }
    }

    // current round tripping.
    for (BasicRollup basicRollup : TO_SERIALIZE_BASIC_ROLLUP) {
        for (Granularity g : Granularity.rollupGranularities()) {
            ByteBuffer bb = NumericSerializer.serializerFor(BasicRollup.class).toByteBuffer(basicRollup);
            Assert.assertTrue(
                    basicRollup.equals(NumericSerializer.serializerFor(BasicRollup.class).fromByteBuffer(bb)));
        }
    }
}

From source file:idgs.client.SocketChannelHandler.java

/**
 * handle connect/*from   w  ww  .  j a v a2s  .c  om*/
 * @throws IOException
 */
public void onConnected(SocketChannel channel) throws IOException {
    ClientLogin login = new ClientLogin();
    ByteBuffer buffer = login.toBuffer();
    buffer.flip();
    int writeClientLoginSize = channel.write(buffer);
    if (writeClientLoginSize > 0) {
        log.debug("writer client login content: " + new String(login.toString()));
        log.debug("byte size: " + writeClientLoginSize + ", order by " + RpcBuffer.DEFAULT_BYTE_ORDER.toString()
                + " bytes: " + Arrays.toString(buffer.array()));
    }
}

From source file:at.treedb.jslib.JsLib.java

/**
 * Returns the binary data of an archive entry.
 * /*w w w .j a  va 2  s.  com*/
 * @param path
 *            archive path
 * @return binary data
 * @throws IOException
 */
public byte[] getArchiveEntry(String path) throws IOException {
    if (!archiveMap.containsKey(path)) {
        return null;
    }
    byte[] data = fileCache.get(path);
    if (data == null) {
        ArchiveEntry e = archiveMap.get(path);
        ByteBuffer buf = ByteBuffer.allocate(e.getLength());
        inChannel.read(buf, e.getOffset());
        data = buf.array();
        fileCache.put(path, data);
    }
    return data;
}