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| 1 | +package com.clickhouse.data; |
| 2 | + |
| 3 | +import java.lang.invoke.MethodHandles; |
| 4 | +import java.lang.invoke.VarHandle; |
| 5 | +import java.nio.ByteOrder; |
| 6 | +import java.util.Arrays; |
| 7 | + |
| 8 | +public final class ByteUtils { |
| 9 | + public boolean equals(byte[] a, int aFromIndex, int aToIndex, byte[] b, int bFromIndex, int bToIndex) { |
| 10 | + return Arrays.equals(a, aFromIndex, aToIndex, b, bFromIndex, bToIndex); |
| 11 | + } |
| 12 | + |
| 13 | + public byte getInt8(byte[] bytes, int offset) { |
| 14 | + return (byte) byteHandle.get(bytes, offset); |
| 15 | + } |
| 16 | + |
| 17 | + public void setInt8(byte[] bytes, int offset, byte value) { |
| 18 | + byteHandle.set(bytes, offset, value); |
| 19 | + } |
| 20 | + |
| 21 | + public short getInt16(byte[] bytes, int offset) { |
| 22 | + return (short) shortHandle.get(bytes, offset); |
| 23 | + } |
| 24 | + |
| 25 | + public void setInt16(byte[] bytes, int offset, short value) { |
| 26 | + shortHandle.set(bytes, offset, value); |
| 27 | + } |
| 28 | + |
| 29 | + public int getInt32(byte[] bytes, int offset) { |
| 30 | + return (int) intHandle.get(bytes, offset); |
| 31 | + } |
| 32 | + |
| 33 | + public void setInt32(byte[] bytes, int offset, int value) { |
| 34 | + intHandle.set(bytes, offset, value); |
| 35 | + } |
| 36 | + |
| 37 | + public long getInt64(byte[] bytes, int offset) { |
| 38 | + return (long) longHandle.get(bytes, offset); |
| 39 | + } |
| 40 | + |
| 41 | + public void setInt64(byte[] bytes, int offset, long value) { |
| 42 | + longHandle.set(bytes, offset, value); |
| 43 | + } |
| 44 | + |
| 45 | + public float getFloat32(byte[] bytes, int offset) { |
| 46 | + return (float) floatHandle.get(bytes, offset); |
| 47 | + } |
| 48 | + |
| 49 | + public void setFloat32(byte[] bytes, int offset, float value) { |
| 50 | + floatHandle.set(bytes, offset, value); |
| 51 | + } |
| 52 | + |
| 53 | + public double getFloat64(byte[] bytes, int offset) { |
| 54 | + return (double) doubleHandle.get(bytes, offset); |
| 55 | + } |
| 56 | + |
| 57 | + public void setFloat64(byte[] bytes, int offset, double value) { |
| 58 | + doubleHandle.set(bytes, offset, value); |
| 59 | + } |
| 60 | + |
| 61 | + private final VarHandle byteHandle; |
| 62 | + private final VarHandle shortHandle; |
| 63 | + private final VarHandle intHandle; |
| 64 | + private final VarHandle longHandle; |
| 65 | + private final VarHandle floatHandle; |
| 66 | + private final VarHandle doubleHandle; |
| 67 | + |
| 68 | + ByteUtils(ByteOrder byteOrder) { |
| 69 | + byteHandle = MethodHandles.arrayElementVarHandle(byte[].class); |
| 70 | + shortHandle = MethodHandles.byteArrayViewVarHandle(short[].class, byteOrder); |
| 71 | + intHandle = MethodHandles.byteArrayViewVarHandle(int[].class, byteOrder); |
| 72 | + longHandle = MethodHandles.byteArrayViewVarHandle(long[].class, byteOrder); |
| 73 | + floatHandle = MethodHandles.byteArrayViewVarHandle(float[].class, byteOrder); |
| 74 | + doubleHandle = MethodHandles.byteArrayViewVarHandle(double[].class, byteOrder); |
| 75 | + } |
| 76 | +} |
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