List of ints() Examples

Examples of ints()

org.apache.crunch.types.PTypeFamily.ints()

Examples of org.apache.crunch.types.PTypeFamily.ints()

  public static <T> PCollection<T> reservoirSample(
      PCollection<T> input,
      int sampleSize,
      Long seed) {
    PTypeFamily ptf = input.getTypeFamily();
    PType<Pair<T, Integer>> ptype = ptf.pairs(input.getPType(), ptf.ints());
    return weightedReservoirSample(
        input.parallelDo("Map to pairs for reservoir sampling", new MapFn<T, Pair<T, Integer>>() {
          @Override
          public Pair<T, Integer> map(T t) { return Pair.of(t, 1); }
        }, ptype),

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Examples of org.apache.crunch.types.PTypeFamily.ints()

        new MapFn<Pair<T, N>, Pair<Integer, Pair<T, N>>>() {
          @Override
          public Pair<Integer, Pair<T, N>> map(Pair<T, N> p) {
            return Pair.of(0, p);
          }
        }, ptf.tableOf(ptf.ints(), input.getPType()));
    int[] ss = { sampleSize };
    return groupedWeightedReservoirSample(groupedIn, ss, seed)
        .parallelDo("Extract sampled value from pair", new MapFn<Pair<Integer, T>, T>() {
          @Override
          public T map(Pair<Integer, T> p) {

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Examples of org.apache.crunch.types.PTypeFamily.ints()

      PTable<Integer, Pair<T, N>> input,
      int[] sampleSizes,
      Long seed) {
    PTypeFamily ptf = input.getTypeFamily();
    PType<T> ttype = (PType<T>) input.getPTableType().getValueType().getSubTypes().get(0);
    PTableType<Integer, Pair<Double, T>> ptt = ptf.tableOf(ptf.ints(),
        ptf.pairs(ptf.doubles(), ttype));
    
    return input.parallelDo("Initial reservoir sampling", new ReservoirSampleFn<T, N>(sampleSizes, seed, ttype), ptt)
        .groupByKey(1)
        .combineValues(new WRSCombineFn<T>(sampleSizes, ttype))

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Examples of org.apache.crunch.types.PTypeFamily.ints()

        .parallelDo("Extract sampled values", new MapFn<Pair<Integer, Pair<Double, T>>, Pair<Integer, T>>() {
          @Override
          public Pair<Integer, T> map(Pair<Integer, Pair<Double, T>> p) {
            return Pair.of(p.first(), p.second().second());
          }
        }, ptf.pairs(ptf.ints(), ttype));
  }


}

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Examples of org.apache.crunch.types.PTypeFamily.ints()

            return Pair.of(1, 1L);
          }
          public void cleanup(Emitter<Pair<Integer, Long>> e) {
            e.emit(Pair.of(1, 0L));
          }
        }, tf.tableOf(tf.ints(), tf.longs()))
        .groupByKey(GroupingOptions.builder().numReducers(1).build())
        .combineValues(Aggregators.SUM_LONGS());
    PCollection<Long> count = countTable.values();
    return new FirstElementPObject<Long>(count);
  }

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Examples of org.apache.crunch.types.PTypeFamily.ints()

   */
  public static <K, V> PTable<K, V> top(PTable<K, V> ptable, int limit, boolean maximize) {
    PTypeFamily ptf = ptable.getTypeFamily();
    PTableType<K, V> base = ptable.getPTableType();
    PType<Pair<K, V>> pairType = ptf.pairs(base.getKeyType(), base.getValueType());
    PTableType<Integer, Pair<K, V>> inter = ptf.tableOf(ptf.ints(), pairType);
    return ptable.parallelDo("top" + limit + "map", new TopKFn<K, V>(limit, maximize, pairType), inter)
        .groupByKey(1).combineValues(new TopKCombineFn<K, V>(limit, maximize, pairType))
        .parallelDo("top" + limit + "reduce", new DoFn<Pair<Integer, Pair<K, V>>, Pair<K, V>>() {
          public void process(Pair<Integer, Pair<K, V>> input, Emitter<Pair<K, V>> emitter) {
            emitter.emit(input.second());

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Examples of org.apache.crunch.types.PTypeFamily.ints()

    return grouped.parallelDo(joinFn.getJoinType() + grouped.getName(), joinFn, ret);
  }


  static <K, U, V> PGroupedTable<Pair<K, Integer>, Pair<U, V>> preJoin(PTable<K, U> left, PTable<K, V> right) {
    PTypeFamily ptf = left.getTypeFamily();
    PTableType<Pair<K, Integer>, Pair<U, V>> ptt = ptf.tableOf(ptf.pairs(left.getKeyType(), ptf.ints()),
        ptf.pairs(left.getValueType(), right.getValueType()));


    PTable<Pair<K, Integer>, Pair<U, V>> tag1 = left.parallelDo("joinTagLeft",
        new MapFn<Pair<K, U>, Pair<Pair<K, Integer>, Pair<U, V>>>() {
          @Override

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Examples of org.apache.crunch.types.PTypeFamily.ints()

   */
  public static <K, V> PTable<K, V> top(PTable<K, V> ptable, int limit, boolean maximize) {
    PTypeFamily ptf = ptable.getTypeFamily();
    PTableType<K, V> base = ptable.getPTableType();
    PType<Pair<K, V>> pairType = ptf.pairs(base.getKeyType(), base.getValueType());
    PTableType<Integer, Pair<K, V>> inter = ptf.tableOf(ptf.ints(), pairType);
    return ptable.parallelDo("top" + limit + "map", new TopKFn<K, V>(limit, maximize, pairType), inter)
        .groupByKey(1).combineValues(new TopKCombineFn<K, V>(limit, maximize, pairType))
        .parallelDo("top" + limit + "reduce", new DoFn<Pair<Integer, Pair<K, V>>, Pair<K, V>>() {
          public void process(Pair<Integer, Pair<K, V>> input, Emitter<Pair<K, V>> emitter) {
            emitter.emit(input.second());

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Examples of org.apache.crunch.types.PTypeFamily.ints()

    PTable<Integer, Long> countTable = collect
        .parallelDo("Aggregate.count", new MapFn<S, Pair<Integer, Long>>() {
          public Pair<Integer, Long> map(S input) {
            return Pair.of(1, 1L);
          }
        }, tf.tableOf(tf.ints(), tf.longs()))
        .groupByKey(GroupingOptions.builder().numReducers(1).build())
        .combineValues(Aggregators.SUM_LONGS());
    PCollection<Long> count = countTable.values();
    return new FirstElementPObject<Long>(count);
  }

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Examples of org.apache.crunch.types.PTypeFamily.ints()

  public static <T> PCollection<T> reservorSample(
      PCollection<T> input,
      int sampleSize,
      Long seed) {
    PTypeFamily ptf = input.getTypeFamily();
    PType<Pair<T, Integer>> ptype = ptf.pairs(input.getPType(), ptf.ints());
    return weightedReservoirSample(
        input.parallelDo(new MapFn<T, Pair<T, Integer>>() {
          public Pair<T, Integer> map(T t) { return Pair.of(t, 1); }
        }, ptype),
        sampleSize,

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