public void configure(JobConf conf) {
numberOfCenters = Integer.valueOf(conf.get("numberOfCenters"));
centersDirectory = conf.get("centersReadDirectory");
try {
Configuration c = new Configuration();
FileSystem fs = FileSystem.get(c);
for (int index = 0; index < numberOfCenters; ++index) {
SequenceFile.Reader reader =
new SequenceFile.Reader(fs, new Path(centersDirectory + "/centers/" + index), c);
LongWritable key = new LongWritable();
Point value = new Point();
reader.next(key, value);
Point center = (Point) value;
centers.add(center);
reader.close();
}
} catch (IOException e) {
// do nothing
// I hope this doesn't happen
System.out.println("well, damn.");
e.printStackTrace();
}
}
public void configure(JobConf conf) {
/*
* It reads all the configurations and distributed cache from outside.
*/
// Read number of nodes in input layer and output layer from configuration
inputNumdims = conf.get("numdims");
inputNumhid = conf.get("numhid");
// Read the weights from distributed cache
Path[] pathwaysFiles = new Path[0];
try {
pathwaysFiles = DistributedCache.getLocalCacheFiles(conf);
for (Path path : pathwaysFiles) {
/*
* this loop reads all the distributed cache files
* In fact, the driver program ensures that there is only one distributed cache file
*/
BufferedReader fis = new BufferedReader(new FileReader(path.toString()));
weightline = fis.readLine();
}
} catch (Exception e) {
e.printStackTrace();
}
}