@Override
public byte[] getSnmpBytes() {
byte[] b = new byte[2 * _arrayLength];
int x = _array[0] * 40 + _array[1];
int off = 0;
b[off++] = (byte) ((x > 127) ? (x - 256) : x);
int y;
boolean begin;
for (int i = 2; i < _arrayLength; i++) {
x = _array[i];
begin = false;
for (int j = 3; j >= 0; j--) {
y = (x >> (j * 7)) & 0x7f;
if ((!begin) && (y == 0)) {
continue;
}
begin = true;
if (j != 0) {
y |= 0x80;
}
b[off++] = (byte) ((y > 127) ? (y - 256) : y);
}
if (!begin) {
b[off++] = (byte) 0;
}
}
// System.out.println( SnmpObjectHeader._print(b,0,off));
SnmpObjectHeader head = new SnmpObjectHeader(SnmpObjectHeader.OBJECT_IDENTIFIER, off);
int headLen = head.getCodedLength();
byte[] out = new byte[headLen + off];
System.arraycopy(head.getSnmpBytes(), 0, out, 0, headLen);
System.arraycopy(b, 0, out, headLen, off);
return out;
}
SnmpOID(SnmpObjectHeader head, byte[] b, int offIn, int maxLen) {
int off = offIn + head.getCodedLength();
int len = head.getLength();
_array = new int[len + 1];
int x = b[off++];
int resPos = 0;
x = (x < 0) ? (x + 256) : x;
_array[resPos++] = (x / 40);
_array[resPos++] = (x % 40);
int res = 0;
for (int i = 1; i < len; i++) {
x = b[off++];
x = (x < 0) ? (x + 256) : x;
if ((x & 0x80) > 0) {
res |= (x & 0x7f);
res <<= 7;
} else {
res |= (x & 0x7f);
_array[resPos++] = (res);
res = 0;
}
}
_arrayLength = resPos;
setCodedLength(head.getCodedLength() + len);
}
SnmpSequence(SnmpObjectHeader head, byte[] b, int offIn, int maxLen) {
int off = offIn + head.getCodedLength();
int len = head.getLength();
int rest = len;
int cl;
SnmpObject snmp;
while (rest > 0) {
snmp = SnmpObject.generate(b, off, rest);
_vector.addElement(snmp);
cl = snmp.getCodedLength();
rest -= cl;
off += cl;
}
setCodedLength(head.getCodedLength() + len);
}
protected byte[] getSnmpBytes(int type) {
int s = _vector.size();
byte[][] v = new byte[s][];
int total = 0;
for (int i = 0; i < s; i++) {
v[i] = (_vector.elementAt(i)).getSnmpBytes();
total += v[i].length;
}
SnmpObjectHeader head = new SnmpObjectHeader(type, total);
int headLen = head.getCodedLength();
byte[] out = new byte[headLen + total];
System.arraycopy(head.getSnmpBytes(), 0, out, 0, headLen);
int pos = headLen;
for (int i = 0; i < s; i++) {
System.arraycopy(v[i], 0, out, pos, v[i].length);
pos += v[i].length;
}
return out;
}
