Example usage for com.google.common.collect ImmutableMultiset iterator

Introduction

In this page you can find the example usage for com.google.common.collect ImmutableMultiset iterator.

Prototype

@Override
    public UnmodifiableIterator<E> iterator() 

Source Link

Usage

From source file:de.topobyte.osm4j.utils.executables.OsmContributorHistogram.java

private void run() throws IOException {
    long total = 0;

    OsmIterator iterator = createIterator();
    while (iterator.hasNext()) {
        EntityContainer entityContainer = iterator.next();
        OsmEntity entity = entityContainer.getEntity();
        OsmMetadata metadata = entity.getMetadata();

        total++;/*from  w  ww .j a  v  a 2s.  co m*/

        if (metadata == null) {
            continue;
        }

        long uid = metadata.getUid();
        String username = metadata.getUser();
        counter.add(uid);

        if (!map.containsEntry(uid, username)) {
            map.put(uid, username);
        }
    }

    if (counter.isEmpty()) {
        System.out.println("No metadata found");
        return;
    }

    long sum = 0;

    ImmutableMultiset<Long> histogram = Multisets.copyHighestCountFirst(counter);

    long first = histogram.iterator().next();
    int firstCount = histogram.count(first);
    int firstLength = String.format("%d", firstCount).length();
    String pattern = String.format("[%%6.2f%%%%] %%%dd: %%d (%%s)", firstLength);

    for (long id : histogram.elementSet()) {
        int count = histogram.count(id);
        sum += count;
        double done = sum / (double) total;
        List<String> names = new ArrayList<>(map.get(id));
        Collections.sort(names);
        System.out.println(String.format(pattern, done * 100, count, id, Joiner.on(",").join(names)));
    }

    finish();
}

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