@Override
protected void setup(Context context) throws IOException, InterruptedException {
// TODO Auto-generated method stub
super.setup(context);
String json = context.getConfiguration().get("m");
model = new Gson().fromJson(json, OPEModel.class);
String l = context.getConfiguration().get("l");
String r = context.getConfiguration().get("r");
int i = l.indexOf(":");
left = Double.parseDouble(l.substring(0, i));
bl = l.substring(i + 1);
i = r.indexOf(":");
right = Double.parseDouble(r.substring(0, i));
br = r.substring(i + 1);
li = model.cIndex(left);
ri = model.cIndex(right);
}
@Override
public void map(LongWritable ikey, Text ivalue, Context context)
throws IOException, InterruptedException {
// TODO Auto-generated method stub
String line = ivalue.toString();
int index = line.indexOf('\t');
if (index < 0) return;
int bIndex = line.indexOf(':');
if (bIndex < 0) return;
double val = Double.parseDouble(line.substring(0, bIndex));
try {
int pIndex = model.cIndex(val);
if (pIndex < li || pIndex > ri) return;
String cb = line.substring(bIndex + 1, index);
String b = new String(util.Dec(SecurityUtility.K, Base64.decode(cb.getBytes())));
if (pIndex == li) {
if (b.equals(bl) && val < left) return;
if (bl.equals("0") && b.equals("1")) return;
}
if (pIndex == ri) {
if (b.equals(bl) && val > right) return;
if (br.equals("1") && b.equals("0")) return;
}
long p = model.decRng(val, b);
String cextra = line.substring(index + 1);
String pextra = new String(util.Dec(SecurityUtility.K, Base64.decode(cextra.getBytes())));
context.write(new LongWritable(p), new Text(pextra));
} catch (Exception e) {
// TODO: handle exception
System.err.println(StringUtils.stringifyException(e));
}
}
