Java UnsafeUtils.get2方法代码示例

import water.util.UnsafeUtils; //导入方法依赖的package包/类
@Override public NewChunk inflate_impl(NewChunk nc) {
  nc.set_sparseLen(0);
  nc.set_len(0);
  final int len = _len;
  for( int i=0; i<len; i++ ) {
    int res = UnsafeUtils.get2(_mem,(i<<1)+_OFF);
    if( res == _NA ) nc.addNA();
    else             nc.addNum(res,0);
  }
  return nc;
}
 

import water.util.UnsafeUtils; //导入方法依赖的package包/类
protected final long getIValue(int off){
  switch(_valsz){
    case 1: return _mem[off+ _ridsz]&0xFF;
    case 2: return UnsafeUtils.get2(_mem, off + _ridsz);
    case 4: return UnsafeUtils.get4(_mem, off + _ridsz);
    case 8: return UnsafeUtils.get8(_mem, off + _ridsz);
    default: throw H2O.fail();
 } 
}
 

import water.util.UnsafeUtils; //导入方法依赖的package包/类
static Compression guessCompressionMethod(byte [] bits) {
  // Look for ZIP magic
  if( bits.length > ZipFile.LOCHDR && UnsafeUtils.get4(bits, 0) == ZipFile.LOCSIG )
    return Compression.ZIP;
  if( bits.length > 2 && (UnsafeUtils.get2(bits,0)&0xffff) == GZIPInputStream.GZIP_MAGIC )
    return Compression.GZIP;
  return Compression.NONE;
}
 

import water.util.UnsafeUtils; //导入方法依赖的package包/类
public static H2ONode intern( byte[] bs, int off ) {
  byte[] b = new byte[4];
  UnsafeUtils.set4(b, 0, UnsafeUtils.get4(bs, off));
  int port = UnsafeUtils.get2(bs,off+4)&0xFFFF;
  try { return intern(InetAddress.getByAddress(b),port); } 
  catch( UnknownHostException e ) { throw Log.throwErr(e); }
}
 

import water.util.UnsafeUtils; //导入方法依赖的package包/类
@Override public double [] getDoubles(double [] vals, int from, int to, double NA){
  for(int i = from; i < to; i++) {
    int x = UnsafeUtils.get2(_mem, 2*i);
    vals[i-from] = (x == _NA)?NA:x;
  }
  return vals;
}
 

import water.util.UnsafeUtils; //导入方法依赖的package包/类
@Override
public int [] getIntegers(int [] vals, int from, int to, int NA){
  for(int i = from; i < to; i++) {
    int x = UnsafeUtils.get2(_mem, 2*i);
    vals[i-from] = (x == _NA)?NA:x;
  }
  return vals;
}
 

import water.util.UnsafeUtils; //导入方法依赖的package包/类
private long getVal(int x){
  switch(_val_sz){
    case 0: return 1;
    case 2: return UnsafeUtils.get2(_mem,x+2);
    case 4: return UnsafeUtils.get4(_mem,x+4);
    case 8: return UnsafeUtils.get8(_mem,x+4);
    default: throw H2O.unimpl();
  }
}
 

import water.util.UnsafeUtils; //导入方法依赖的package包/类
public static H2ONode intern( byte[] bs, int off ) {
  byte[] b = new byte[H2Okey.SIZE_OF_IP]; // the size depends on version of selected IP stack
  int port;
  // The static constant should be optimized
  if (!H2O.IS_IPV6) { // IPv4
    UnsafeUtils.set4(b, 0, UnsafeUtils.get4(bs, off));
  } else { // IPv6
    UnsafeUtils.set8(b, 0, UnsafeUtils.get8(bs, off));
    UnsafeUtils.set8(b, 8, UnsafeUtils.get8(bs, off + 8));
  }
  port = UnsafeUtils.get2(bs,off + H2Okey.SIZE_OF_IP) & 0xFFFF;
  try { return intern(InetAddress.getByAddress(b),port); } 
  catch( UnknownHostException e ) { throw Log.throwErr(e); }
}
 

import water.util.UnsafeUtils; //导入方法依赖的package包/类
public static H2ONode intern( byte[] bs, int off ) {
  byte[] b = new byte[4];
  UnsafeUtils.set4(b, 0, UnsafeUtils.get4(bs, off));
  int port = UnsafeUtils.get2(bs,off+4)&0xFFFF;
  try { return intern(InetAddress.getByAddress(b),port); } 
  catch( UnknownHostException e ) { throw Log.errRTExcept(e); }
}
 

import water.util.UnsafeUtils; //导入方法依赖的package包/类
@Override protected final long at8_impl( int i ) {
  long res = UnsafeUtils.get2(_mem,(i<<1)+_OFF);
  if( res == C2Chunk._NA ) throw new IllegalArgumentException("at8_abs but value is missing");
  return (long)((res + _bias)*_scale);
}
 

import water.util.UnsafeUtils; //导入方法依赖的package包/类
@Override protected final double atd_impl( int i ) {
  long res = UnsafeUtils.get2(_mem,(i<<1)+_OFF);
  return (res == C2Chunk._NA)?Double.NaN:(res + _bias)*_scale;
}
 

import water.util.UnsafeUtils; //导入方法依赖的package包/类
@Override protected final long at8_impl( int i ) {
  int res = UnsafeUtils.get2(_mem,(i<<1)+_OFF);
  if( res == _NA ) throw new IllegalArgumentException("at8_abs but value is missing");
  return res;
}
 

import water.util.UnsafeUtils; //导入方法依赖的package包/类
@Override protected final double atd_impl( int i ) {
  int res = UnsafeUtils.get2(_mem,(i<<1)+_OFF);
  return res == _NA?Double.NaN:res;
}
 

import water.util.UnsafeUtils; //导入方法依赖的package包/类
protected final int getId(int off){
  return _ridsz == 2
    ?UnsafeUtils.get2(_mem,off)&0xFFFF
    :UnsafeUtils.get4(_mem,off);
}
 

import water.util.UnsafeUtils; //导入方法依赖的package包/类
private final void processRow(int r, ChunkVisitor v){
  int i = UnsafeUtils.get2(_mem,(r<<1)+_OFF);
  if(i == _NA) v.addNAs(1);
  else v.addValue(i);
}