NodeDumper.java 文件源码

/**
 * Outputs the url with the appropriate number of inlinks, outlinks, or for
 * score.
 */
public void map(Text key, Node node,
    OutputCollector<FloatWritable, Text> output, Reporter reporter)
    throws IOException {

  float number = 0;
  if (inlinks) {
    number = node.getNumInlinks();
  } else if (outlinks) {
    number = node.getNumOutlinks();
  } else {
    number = node.getInlinkScore();
  }

  // number collected with negative to be descending
  output.collect(new FloatWritable(-number), key);
}