/*
* (non-Javadoc)
*
* @see
* com.basho.riak.client.raw.RawClient#fetchIndex(com.basho.riak.client.
* raw.query.IndexQuery)
*/
public List<String> fetchIndex(IndexQuery indexQuery) throws IOException {
final MapReduce mr = new IndexMapReduce(this, indexQuery);
mr.addReducePhase(NamedErlangFunction.REDUCE_IDENTITY, Args.REDUCE_PHASE_ONLY_1);
// only return the key, to match the http rest api
mr.addReducePhase(
new JSSourceFunction("function(v) { return v.map(function(e) { return e[1]; }); }"),
Args.REDUCE_PHASE_ONLY_1);
try {
MapReduceResult result = mr.execute();
return new ArrayList<String>(result.getResult(String.class));
} catch (RiakException e) {
throw new IOException(e);
}
}
public void reduce(String key, Cons value, MapReduce mr) {
// System.out.println(" red1 key = " + key + " val = " + value.toString());
int sum = 0;
for (Cons lst = value; lst != null; lst = rest(lst)) {
sum += Integer.decode((String) first((Cons) first(lst)));
}
mr.collect_reduce(key, new Integer(sum));
}
public MapReduce mapreduce() {
return MapReduce.create(this);
}
public void map(String key, String value, MapReduce mr) {
mr.collect_map("line", list("1"));
}