Java Utililty Methods DataInput Read Long

List of utility methods to do DataInput Read Long

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Description

The list of methods to do DataInput Read Long are organized into topic(s).

Method

longreadLong(DataInput dataInput)
read Long 
byte[] bytes = new byte[8];
dataInput.readFully(bytes);
return (((long) bytes[7] << 56) + ((long) (bytes[6] & 255) << 48) + ((long) (bytes[5] & 255) << 40)
        + ((long) (bytes[4] & 255) << 32) + ((long) (bytes[3] & 255) << 24) + ((bytes[2] & 255) << 16)
        + ((bytes[1] & 255) << 8) + ((bytes[0] & 255) << 0));
LongreadLong(DataInput in)
Reads a Long value. 
if (readNullFlag(in))
    return null;
return new Long(in.readLong());
longreadLong(DataInput in)
read Long 
byte len = in.readByte();
if (len == 0)
    return 0;
byte[] buf = new byte[len];
in.readFully(buf, 0, len);
return makeLong(buf, 0, len);
long[]readLongSequence(DataInput in)
read Long Sequence 
byte len = in.readByte();
if (len == 0)
    return new long[] { 0, 0 };
byte[] lengths = decodeLength(len);
long[] seqnos = new long[2];
byte[] buf = new byte[lengths[0] + lengths[1]];
in.readFully(buf, 0, buf.length);
seqnos[0] = makeLong(buf, 0, lengths[0]);
...
StringreadLongUTF8(DataInput in)
Read a UTF8 String previously written with writeLongUTF8. 
int len = in.readInt();
if (len == 0)
    return "";
char[] cbuf = new char[len];
for (int i = 0; i < len; i++) {
    int b1, b2, b3;
    b1 = in.readUnsignedByte();
    switch (b1 >> 4) {
...