private MergeReadRes read(int id) throws Exception {
MergeReadRes res = new MergeReadRes();
while (curKey1 < id && (buf1 = dr1.read()) != null) {
// buf1 = dr1.read();
curKey1 = Integer.parseInt(buf1[key1]);
}
while (curKey2 < id && (buf2 = dr2.read()) != null) {
// buf1 = dr1.read();
curKey2 = Integer.parseInt(buf2[key2]);
}
// if(buf1 == null || buf2 == null) return null;
setCurKey();
if (curKey1 == id && curKey2 == id) {
res.key_value = id;
do {
if (buf1 == null) continue;
String[] temp = new String[buf1.length];
System.arraycopy(buf1, 0, temp, 0, buf1.length);
res.line1_list.add(temp);
} while ((buf1 = dr1.read()) != null && Integer.parseInt(buf1[key1]) == id);
do {
if (buf2 == null) continue;
String[] temp = new String[buf2.length];
System.arraycopy(buf2, 0, temp, 0, buf2.length);
res.line2_list.add(temp);
} while ((buf2 = dr2.read()) != null && Integer.parseInt(buf2[key2]) == id);
} else {
res.key_value = Integer.MIN_VALUE;
}
setCurKey();
return res;
}
public MergeRead(String file1, String file2, int key1, int key2) throws Exception {
dr1 = new DelimitedReader(file1);
dr2 = new DelimitedReader(file2);
this.key1 = key1;
this.key2 = key2;
buf1 = dr1.read();
curKey1 = Integer.parseInt(buf1[key1]);
buf2 = dr2.read();
curKey2 = Integer.parseInt(buf2[key2]);
}