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com.yahoo.memory.WritableMemory.putShort()方法的使用及代码示例

转载 作者:知者 更新时间:2024-03-23 21:17:05 25 4
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本文整理了Java中com.yahoo.memory.WritableMemory.putShort()方法的一些代码示例,展示了WritableMemory.putShort()的具体用法。这些代码示例主要来源于Github/Stackoverflow/Maven等平台,是从一些精选项目中提取出来的代码,具有较强的参考意义,能在一定程度帮忙到你。WritableMemory.putShort()方法的具体详情如下:
包路径:com.yahoo.memory.WritableMemory
类名称:WritableMemory
方法名:putShort

WritableMemory.putShort介绍

[英]Puts the short value at the given offset
[中]将短值置于给定偏移量处

代码示例

代码示例来源:origin: DataSketches/sketches-core

static void insertSeedHash(final WritableMemory wmem, final int seedHash) {
 wmem.putShort(SEED_HASH_SHORT, (short) seedHash);
}

代码示例来源:origin: DataSketches/sketches-core

static void insertK(final WritableMemory wmem, final int value) {
 wmem.putShort(K_SHORT, (short) value);
}

代码示例来源:origin: DataSketches/sketches-core

static final void put6Bit(final WritableMemory wmem, final int offsetBytes, final int slotNo,
  final int newValue) {
 final int startBit = slotNo * 6;
 final int shift = startBit & 0X7;
 final int byteIdx = (startBit >>> 3) + offsetBytes;
 final int valShifted = (newValue & 0X3F) << shift;
 final int curMasked = wmem.getShort(byteIdx) & (~(VAL_MASK_6 << shift));
 final short insert = (short) (curMasked | valShifted);
 wmem.putShort(byteIdx, insert);
}

代码示例来源:origin: DataSketches/sketches-core

IntersectionImplR(final WritableMemory mem, final long seed, final boolean newMem) {
 mem_ = mem;
 if (mem != null) {
  if (newMem) {
   seedHash_ = computeSeedHash(seed);
   mem_.putShort(SEED_HASH_SHORT, seedHash_);
  } else {
   seedHash_ = mem_.getShort(SEED_HASH_SHORT);
   Util.checkSeedHashes(seedHash_, computeSeedHash(seed)); //check for seed hash conflict
  }
 } else {
  seedHash_ = computeSeedHash(seed);
 }
}

代码示例来源:origin: DataSketches/sketches-core

@Test
public void checkSerVer2_8Bytes() {
 byte[] byteArray = new byte[8];
 WritableMemory mem = WritableMemory.wrap(byteArray);
 mem.putByte(0, (byte) 1); //mdLongs, RR = 0
 mem.putByte(1, (byte) 2); //SerVer
 mem.putByte(2, (byte) 3); //SketchType = SetSketch
 //byte 3 lgNomLongs not used w SetSketch
 //byte 4 lgArrLongs not used w SetSketch
 //byte 5 Flags: b0: BigEnd, b1: ReadOnly, b2: Empty, b3: NoRebuild, b4, Unordered
 mem.putByte(5, (byte) 2); //Flags
 short seedHash = Util.computeSeedHash(Util.DEFAULT_UPDATE_SEED);
 mem.putShort(6, seedHash);
 //mem.putInt(8, 0); //curCount = 0
 //mem.putLong(16, Long.MAX_VALUE);
 Memory srcMem = Memory.wrap(byteArray);
 Sketch sketch = Sketch.heapify(srcMem);
 assertEquals(sketch.isEmpty(), true);
 assertEquals(sketch.isEstimationMode(), false);
 assertEquals(sketch.isDirect(), false);
 assertEquals(sketch.isCompact(), true);
 assertEquals(sketch.isOrdered(), true);
 String name = sketch.getClass().getSimpleName();
 assertEquals(name, "HeapCompactOrderedSketch");
}

代码示例来源:origin: DataSketches/sketches-core

@Test
public void checkSerVer2_24Bytes_1Value() {
 byte[] byteArray = new byte[24];
 WritableMemory mem = WritableMemory.wrap(byteArray);
 mem.putByte(0, (byte) 2); //mdLongs, RF (RR) = 0
 mem.putByte(1, (byte) 2); //SerVer
 mem.putByte(2, (byte) 3); //SketchType = SetSketch
 //byte 3 lgNomLongs not used w SetSketch
 //byte 4 lgArrLongs not used w SetSketch
 //byte 5 Flags: b0: BigEnd, b1: ReadOnly, b2: Empty, b3: NoRebuild, b4, Unordered
 mem.putByte(5, (byte) 2); //Flags = ReadOnly
 short seedHash = Util.computeSeedHash(Util.DEFAULT_UPDATE_SEED);
 mem.putShort(6, seedHash);
 mem.putInt(8, 0); //curCount = 0
 //mem.putLong(16, Long.MAX_VALUE);
 Memory srcMem = Memory.wrap(byteArray);
 Sketch sketch = Sketch.heapify(srcMem);
 assertEquals(sketch.isEmpty(), false);
 assertEquals(sketch.isEstimationMode(), false);
 assertEquals(sketch.isDirect(), false);
 assertEquals(sketch.isCompact(), true);
 assertEquals(sketch.isOrdered(), true);
 String name = sketch.getClass().getSimpleName();
 assertEquals(name, "HeapCompactOrderedSketch");
}

代码示例来源:origin: DataSketches/sketches-core

@Test
public void checkSerVer2_32Bytes_1Value() {
 byte[] byteArray = new byte[32];
 WritableMemory mem = WritableMemory.wrap(byteArray);
 mem.putByte(0, (byte) 3); //mdLongs, RF (RR) = 0
 mem.putByte(1, (byte) 2); //SerVer
 mem.putByte(2, (byte) 3); //SketchType = SetSketch
 //byte 3 lgNomLongs not used w SetSketch
 //byte 4 lgArrLongs not used w SetSketch
 //byte 5 Flags: b0: BigEnd, b1: ReadOnly, b2: Empty, b3: NoRebuild, b4, Unordered
 mem.putByte(5, (byte) 2); //Flags = ReadOnly
 short seedHash = Util.computeSeedHash(Util.DEFAULT_UPDATE_SEED);
 mem.putShort(6, seedHash);
 mem.putInt(8, 0); //curCount = 0
 mem.putLong(16, Long.MAX_VALUE);
 Memory srcMem = Memory.wrap(byteArray);
 Sketch sketch = Sketch.heapify(srcMem);
 assertEquals(sketch.isEmpty(), false);
 assertEquals(sketch.isEstimationMode(), false);
 assertEquals(sketch.isDirect(), false);
 assertEquals(sketch.isCompact(), true);
 assertEquals(sketch.isOrdered(), true);
 String name = sketch.getClass().getSimpleName();
 assertEquals(name, "HeapCompactOrderedSketch");
}

代码示例来源:origin: DataSketches/sketches-core

@Test
public void checkVersionConversion() {
 // version change from 1 to 2 only impact first preamble long, so empty sketch is sufficient
 final int k = 32768;
 final short encK = ReservoirSize.computeSize(k);
 final ReservoirLongsSketch rls = ReservoirLongsSketch.newInstance(k);
 final byte[] sketchBytesOrig = rls.toByteArray();
 // get a new byte[], manually revert to v1, then reconstruct
 final byte[] sketchBytes = rls.toByteArray();
 final WritableMemory sketchMem = WritableMemory.wrap(sketchBytes);
 sketchMem.putByte(SER_VER_BYTE, (byte) 1);
 sketchMem.putInt(RESERVOIR_SIZE_INT, 0); // zero out all 4 bytes
 sketchMem.putShort(RESERVOIR_SIZE_SHORT, encK);
 final ReservoirLongsSketch rebuilt = ReservoirLongsSketch.heapify(sketchMem);
 final byte[] rebuiltBytes = rebuilt.toByteArray();
 assertEquals(sketchBytesOrig.length, rebuiltBytes.length);
 for (int i = 0; i < sketchBytesOrig.length; ++i) {
  assertEquals(sketchBytesOrig[i], rebuiltBytes[i]);
 }
}

代码示例来源:origin: DataSketches/sketches-core

@Override
void serializeInto(final WritableMemory mem) {
 mem.putByte(PREAMBLE_LONGS_BYTE, (byte) 1);
 mem.putByte(SERIAL_VERSION_BYTE, serialVersionUID);
 mem.putByte(FAMILY_ID_BYTE, (byte) Family.TUPLE.getID());
 mem.putByte(SKETCH_TYPE_BYTE,
   (byte) SerializerDeserializer.SketchType.ArrayOfDoublesQuickSelectSketch.ordinal());
 final boolean isBigEndian = ByteOrder.nativeOrder().equals(ByteOrder.BIG_ENDIAN);
 mem.putByte(FLAGS_BYTE, (byte)(
  (isBigEndian ? 1 << Flags.IS_BIG_ENDIAN.ordinal() : 0)
  | (isInSamplingMode() ? 1 << Flags.IS_IN_SAMPLING_MODE.ordinal() : 0)
  | (isEmpty_ ? 1 << Flags.IS_EMPTY.ordinal() : 0)
  | (count_ > 0 ? 1 << Flags.HAS_ENTRIES.ordinal() : 0)
 ));
 mem.putByte(NUM_VALUES_BYTE, (byte) numValues_);
 mem.putShort(SEED_HASH_SHORT, Util.computeSeedHash(seed_));
 mem.putLong(THETA_LONG, theta_);
 mem.putByte(LG_NOM_ENTRIES_BYTE, (byte) Integer.numberOfTrailingZeros(nomEntries_));
 mem.putByte(LG_CUR_CAPACITY_BYTE, (byte) Integer.numberOfTrailingZeros(keys_.length));
 mem.putByte(LG_RESIZE_FACTOR_BYTE, (byte) lgResizeFactor_);
 mem.putFloat(SAMPLING_P_FLOAT, samplingProbability_);
 mem.putInt(RETAINED_ENTRIES_INT, count_);
 if (count_ > 0) {
  mem.putLongArray(ENTRIES_START, keys_, 0, keys_.length);
  mem.putDoubleArray(ENTRIES_START + ((long) SIZE_OF_KEY_BYTES * keys_.length), values_, 0,
    values_.length);
 }
}

代码示例来源:origin: DataSketches/sketches-core

));
mem_.putByte(NUM_VALUES_BYTE, (byte) numValues);
mem_.putShort(SEED_HASH_SHORT, Util.computeSeedHash(seed));
theta_ = (long) (Long.MAX_VALUE * (double) samplingProbability);
mem_.putLong(THETA_LONG, theta_);

代码示例来源:origin: DataSketches/sketches-core

DirectArrayOfDoublesCompactSketch(final long[] keys, final double[] values, final long theta,
  final boolean isEmpty, final int numValues, final short seedHash, final WritableMemory dstMem) {
 super(numValues);
 checkIfEnoughMemory(dstMem, values.length, numValues);
 mem_ = dstMem;
 dstMem.putByte(PREAMBLE_LONGS_BYTE, (byte) 1);
 dstMem.putByte(SERIAL_VERSION_BYTE, serialVersionUID);
 dstMem.putByte(FAMILY_ID_BYTE, (byte) Family.TUPLE.getID());
 dstMem.putByte(SKETCH_TYPE_BYTE, (byte)
   SerializerDeserializer.SketchType.ArrayOfDoublesCompactSketch.ordinal());
 final boolean isBigEndian = ByteOrder.nativeOrder().equals(ByteOrder.BIG_ENDIAN);
 isEmpty_ = isEmpty;
 final int count = keys.length;
 dstMem.putByte(FLAGS_BYTE, (byte) (
  (isBigEndian ? 1 << Flags.IS_BIG_ENDIAN.ordinal() : 0)
  | (isEmpty_ ? 1 << Flags.IS_EMPTY.ordinal() : 0)
  | (count > 0 ? 1 << Flags.HAS_ENTRIES.ordinal() : 0)
 ));
 dstMem.putByte(NUM_VALUES_BYTE, (byte) numValues_);
 dstMem.putShort(SEED_HASH_SHORT, seedHash);
 theta_ = theta;
 dstMem.putLong(THETA_LONG, theta_);
 if (count > 0) {
  dstMem.putInt(RETAINED_ENTRIES_INT, count);
  dstMem.putLongArray(ENTRIES_START, keys, 0, count);
  dstMem.putDoubleArray(
    ENTRIES_START + ((long) SIZE_OF_KEY_BYTES * count), values, 0, values.length);
 }
}

代码示例来源:origin: DataSketches/sketches-core

@Test
public void checkVersionConversionWithGadget() {
 final long n = 32;
 final int k = 256;
 final short encK = ReservoirSize.computeSize(k);
 final ReservoirLongsUnion rlu = ReservoirLongsUnion.newInstance(k);
 for (long i = 0; i < n; ++i) {
  rlu.update(i);
 }
 final byte[] unionBytesOrig = rlu.toByteArray();
 // get a new byte[], manually revert to v1, then reconstruct
 final byte[] unionBytes = rlu.toByteArray();
 final WritableMemory unionMem = WritableMemory.wrap(unionBytes);
 unionMem.putByte(SER_VER_BYTE, (byte) 1);
 unionMem.putInt(RESERVOIR_SIZE_INT, 0); // zero out all 4 bytes
 unionMem.putShort(RESERVOIR_SIZE_SHORT, encK);
 // force gadget header to v1, too
 final int offset = Family.RESERVOIR_UNION.getMaxPreLongs() << 3;
 unionMem.putByte(offset + SER_VER_BYTE, (byte) 1);
 unionMem.putInt(offset + RESERVOIR_SIZE_INT, 0); // zero out all 4 bytes
 unionMem.putShort(offset + RESERVOIR_SIZE_SHORT, encK);
 final ReservoirLongsUnion rebuilt = ReservoirLongsUnion.heapify(unionMem);
 final byte[] rebuiltBytes = rebuilt.toByteArray();
 assertEquals(unionBytesOrig.length, rebuiltBytes.length);
 for (int i = 0; i < unionBytesOrig.length; ++i) {
  assertEquals(unionBytesOrig[i], rebuiltBytes[i]);
 }
}

代码示例来源:origin: DataSketches/sketches-core

@Test
public void checkVersionConversionWithEmptyGadget() {
 final int k = 32768;
 final short encK = ReservoirSize.computeSize(k);
 final ReservoirLongsUnion rlu = ReservoirLongsUnion.newInstance(k);
 final byte[] unionBytesOrig = rlu.toByteArray();
 // get a new byte[], manually revert to v1, then reconstruct
 final byte[] unionBytes = rlu.toByteArray();
 final WritableMemory unionMem = WritableMemory.wrap(unionBytes);
 unionMem.putByte(SER_VER_BYTE, (byte) 1);
 unionMem.putInt(RESERVOIR_SIZE_INT, 0); // zero out all 4 bytes
 unionMem.putShort(RESERVOIR_SIZE_SHORT, encK);
 println(PreambleUtil.preambleToString(unionMem));
 final ReservoirLongsUnion rebuilt = ReservoirLongsUnion.heapify(unionMem);
 final byte[] rebuiltBytes = rebuilt.toByteArray();
 assertEquals(unionBytesOrig.length, rebuiltBytes.length);
 for (int i = 0; i < unionBytesOrig.length; ++i) {
  assertEquals(unionBytesOrig[i], rebuiltBytes[i]);
 }
}

代码示例来源:origin: DataSketches/sketches-core

private static void putFirst8(final WritableMemory wmem, final byte preInts, final byte lgK,
  final byte fiCol, final byte flags, final short seedHash) {
 wmem.clear(0L, 4L * preInts);
 wmem.putByte(getLoFieldOffset(LoField.PRE_INTS), preInts);
 wmem.putByte(getLoFieldOffset(LoField.SER_VERSION), SER_VER);
 wmem.putByte(getLoFieldOffset(LoField.FAMILY), (byte) Family.CPC.getID());
 wmem.putByte(getLoFieldOffset(LoField.LG_K), lgK);
 wmem.putByte(getLoFieldOffset(LoField.FI_COL), fiCol);
 wmem.putByte(getLoFieldOffset(LoField.FLAGS), flags);
 wmem.putShort(getLoFieldOffset(LoField.SEED_HASH), seedHash);
}

代码示例来源:origin: DataSketches/sketches-core

));
mem.putByte(NUM_VALUES_BYTE, (byte) numValues_);
mem.putShort(SEED_HASH_SHORT, seedHash_);
mem.putLong(THETA_LONG, theta_);
if (count > 0) {

代码示例来源:origin: DataSketches/sketches-core

@Test
public void checkVersionConversionWithGadget() {
 final long n = 32;
 final int k = 256;
 final short encK = ReservoirSize.computeSize(k);
 final ArrayOfNumbersSerDe serDe = new ArrayOfNumbersSerDe();
 final ReservoirItemsUnion<Number> rlu = ReservoirItemsUnion.newInstance(k);
 for (long i = 0; i < n; ++i) {
  rlu.update(i);
 }
 final byte[] unionBytesOrig = rlu.toByteArray(serDe);
 // get a new byte[], manually revert to v1, then reconstruct
 final byte[] unionBytes = rlu.toByteArray(serDe);
 final WritableMemory unionMem = WritableMemory.wrap(unionBytes);
 unionMem.putByte(SER_VER_BYTE, (byte) 1);
 unionMem.putInt(RESERVOIR_SIZE_INT, 0); // zero out all 4 bytes
 unionMem.putShort(RESERVOIR_SIZE_SHORT, encK);
 // force gadget header to v1, too
 final int offset = Family.RESERVOIR_UNION.getMaxPreLongs() << 3;
 unionMem.putByte(offset + SER_VER_BYTE, (byte) 1);
 unionMem.putInt(offset + RESERVOIR_SIZE_INT, 0); // zero out all 4 bytes
 unionMem.putShort(offset + RESERVOIR_SIZE_SHORT, encK);
 final ReservoirItemsUnion<Number> rebuilt = ReservoirItemsUnion.heapify(unionMem, serDe);
 final byte[] rebuiltBytes = rebuilt.toByteArray(serDe);
 assertEquals(unionBytesOrig.length, rebuiltBytes.length);
 for (int i = 0; i < unionBytesOrig.length; ++i) {
  assertEquals(unionBytesOrig[i], rebuiltBytes[i]);
 }
}

代码示例来源:origin: DataSketches/sketches-core

@Test
public void checkVersionConversionWithEmptyGadget() {
 final int k = 32768;
 final short encK = ReservoirSize.computeSize(k);
 final ArrayOfStringsSerDe serDe = new ArrayOfStringsSerDe();
 final ReservoirItemsUnion<String> riu = ReservoirItemsUnion.newInstance(k);
 final byte[] unionBytesOrig = riu.toByteArray(serDe);
 // get a new byte[], manually revert to v1, then reconstruct
 final byte[] unionBytes = riu.toByteArray(serDe);
 final WritableMemory unionMem = WritableMemory.wrap(unionBytes);
 unionMem.putByte(SER_VER_BYTE, (byte) 1);
 unionMem.putInt(RESERVOIR_SIZE_INT, 0); // zero out all 4 bytes
 unionMem.putShort(RESERVOIR_SIZE_SHORT, encK);
 println(PreambleUtil.preambleToString(unionMem));
 final ReservoirItemsUnion<String> rebuilt = ReservoirItemsUnion.heapify(unionMem, serDe);
 final byte[] rebuiltBytes = rebuilt.toByteArray(serDe);
 assertEquals(unionBytesOrig.length, rebuiltBytes.length);
 for (int i = 0; i < unionBytesOrig.length; ++i) {
  assertEquals(unionBytesOrig[i], rebuiltBytes[i]);
 }
}

代码示例来源:origin: DataSketches/sketches-core

@Test
public void checkVersionConversion() {
 // version change from 1 to 2 only impact first preamble long, so empty sketch is sufficient
 final int k = 32768;
 final short encK = ReservoirSize.computeSize(k);
 final ArrayOfLongsSerDe serDe = new ArrayOfLongsSerDe();
 final ReservoirItemsSketch<Long> ris = ReservoirItemsSketch.newInstance(k);
 final byte[] sketchBytesOrig = ris.toByteArray(serDe);
 // get a new byte[], manually revert to v1, then reconstruct
 final byte[] sketchBytes = ris.toByteArray(serDe);
 final WritableMemory sketchMem = WritableMemory.wrap(sketchBytes);
 sketchMem.putByte(SER_VER_BYTE, (byte) 1);
 sketchMem.putInt(RESERVOIR_SIZE_INT, 0); // zero out all 4 bytes
 sketchMem.putShort(RESERVOIR_SIZE_SHORT, encK);
 println(PreambleUtil.preambleToString(sketchMem));
 final ReservoirItemsSketch<Long> rebuilt = ReservoirItemsSketch.heapify(sketchMem, serDe);
 final byte[] rebuiltBytes = rebuilt.toByteArray(serDe);
 assertEquals(sketchBytesOrig.length, rebuiltBytes.length);
 for (int i = 0; i < sketchBytesOrig.length; ++i) {
  assertEquals(sketchBytesOrig[i], rebuiltBytes[i]);
 }
}

代码示例来源:origin: DataSketches/sketches-core

memOut.clearBits(FLAGS_BYTE, (byte) EMPTY_FLAG_MASK);
memOut.putShort(SEED_HASH_SHORT, seedHash_);
memOut.putInt(RETAINED_ENTRIES_INT, curCount_);
memOut.putFloat(P_FLOAT, (float) 1.0);

代码示例来源:origin: DataSketches/sketches-core

));
dstMem.putByte(NUM_VALUES_BYTE, (byte) numValues_);
dstMem.putShort(SEED_HASH_SHORT, Util.computeSeedHash(sketch.getSeed()));
theta_ = Math.min(sketch.getThetaLong(), theta);
dstMem.putLong(THETA_LONG, theta_);

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