Example usage for java.util Arrays fill

Introduction

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

Prototype

public static void fill(Object[] a, int fromIndex, int toIndex, Object val)

Source Link

Document

Assigns the specified Object reference to each element of the specified range of the specified array of Objects.

Usage

From source file:com.ebay.nest.io.sede.lazybinary.LazyBinaryMap.java

/**
 * Parse the byte[] and fill keyStart, keyLength, keyIsNull valueStart, valueLength and valueIsNull.
 *//* w w w  .  j  av  a 2 s  .c  o m*/
private void parse() {

    byte[] bytes = this.bytes.getData();

    // get the VInt that represents the map size
    LazyBinaryUtils.readVInt(bytes, start, vInt);
    mapSize = vInt.value;
    if (0 == mapSize) {
        parsed = true;
        return;
    }

    // adjust arrays
    adjustArraySize(mapSize);

    // find out the null-bytes
    int mapByteStart = start + vInt.length;
    int nullByteCur = mapByteStart;
    int nullByteEnd = mapByteStart + (mapSize * 2 + 7) / 8;
    int lastElementByteEnd = nullByteEnd;

    // parsing the keys and values one by one
    for (int i = 0; i < mapSize; i++) {
        // parse a key
        keyIsNull[i] = true;
        if ((bytes[nullByteCur] & (1 << ((i * 2) % 8))) != 0) {
            keyIsNull[i] = false;
            LazyBinaryUtils.checkObjectByteInfo(((MapObjectInspector) oi).getMapKeyObjectInspector(), bytes,
                    lastElementByteEnd, recordInfo);
            keyStart[i] = lastElementByteEnd + recordInfo.elementOffset;
            keyLength[i] = recordInfo.elementSize;
            lastElementByteEnd = keyStart[i] + keyLength[i];
        } else if (!nullMapKey) {
            nullMapKey = true;
            LOG.warn("Null map key encountered! Ignoring similar problems.");
        }

        // parse a value
        valueIsNull[i] = true;
        if ((bytes[nullByteCur] & (1 << ((i * 2 + 1) % 8))) != 0) {
            valueIsNull[i] = false;
            LazyBinaryUtils.checkObjectByteInfo(((MapObjectInspector) oi).getMapValueObjectInspector(), bytes,
                    lastElementByteEnd, recordInfo);
            valueStart[i] = lastElementByteEnd + recordInfo.elementOffset;
            valueLength[i] = recordInfo.elementSize;
            lastElementByteEnd = valueStart[i] + valueLength[i];
        }

        // move onto the next null byte
        if (3 == (i % 4)) {
            nullByteCur++;
        }
    }

    Arrays.fill(keyInited, 0, mapSize, false);
    Arrays.fill(valueInited, 0, mapSize, false);
    parsed = true;
}