Examples with MinKey org.bson.types.MinKey used on opensource projects

Example 16 with MinKey

use of org.bson.types.MinKey in project mongo-hadoop by mongodb.

the class UDFTest method testMinMaxKey.

@Test
public void testMinMaxKey() throws IOException, ParseException {
    PigTest.runScript("/pig/genminmaxkeys.pig");
    for (Document doc : OUTPUT_COLLECTION.find()) {
        assertTrue(doc.get("newMin") instanceof MinKey);
        assertTrue(doc.get("newMax") instanceof MaxKey);
    }
}

Example 17 with MinKey

use of org.bson.types.MinKey in project drill by axbaretto.

the class MongoGroupScan method init.

@SuppressWarnings({ "rawtypes" })
private void init() throws IOException {
    List<String> h = storagePluginConfig.getHosts();
    List<ServerAddress> addresses = Lists.newArrayList();
    for (String host : h) {
        addresses.add(new ServerAddress(host));
    }
    MongoClient client = storagePlugin.getClient();
    chunksMapping = Maps.newHashMap();
    chunksInverseMapping = Maps.newLinkedHashMap();
    if (isShardedCluster(client)) {
        MongoDatabase db = client.getDatabase(CONFIG);
        MongoCollection<Document> chunksCollection = db.getCollection(CHUNKS);
        Document filter = new Document();
        filter.put(NS, this.scanSpec.getDbName() + "." + this.scanSpec.getCollectionName());
        Document projection = new Document();
        projection.put(SHARD, select);
        projection.put(MIN, select);
        projection.put(MAX, select);
        FindIterable<Document> chunkCursor = chunksCollection.find(filter).projection(projection);
        MongoCursor<Document> iterator = chunkCursor.iterator();
        MongoCollection<Document> shardsCollection = db.getCollection(SHARDS);
        projection = new Document();
        projection.put(HOST, select);
        boolean hasChunks = false;
        while (iterator.hasNext()) {
            Document chunkObj = iterator.next();
            String shardName = (String) chunkObj.get(SHARD);
            String chunkId = (String) chunkObj.get(ID);
            filter = new Document(ID, shardName);
            FindIterable<Document> hostCursor = shardsCollection.find(filter).projection(projection);
            MongoCursor<Document> hostIterator = hostCursor.iterator();
            while (hostIterator.hasNext()) {
                Document hostObj = hostIterator.next();
                String hostEntry = (String) hostObj.get(HOST);
                String[] tagAndHost = StringUtils.split(hostEntry, '/');
                String[] hosts = tagAndHost.length > 1 ? StringUtils.split(tagAndHost[1], ',') : StringUtils.split(tagAndHost[0], ',');
                List<String> chunkHosts = Arrays.asList(hosts);
                Set<ServerAddress> addressList = getPreferredHosts(storagePlugin.getClient(addresses), chunkHosts);
                if (addressList == null) {
                    addressList = Sets.newHashSet();
                    for (String host : chunkHosts) {
                        addressList.add(new ServerAddress(host));
                    }
                }
                chunksMapping.put(chunkId, addressList);
                ServerAddress address = addressList.iterator().next();
                List<ChunkInfo> chunkList = chunksInverseMapping.get(address.getHost());
                if (chunkList == null) {
                    chunkList = Lists.newArrayList();
                    chunksInverseMapping.put(address.getHost(), chunkList);
                }
                List<String> chunkHostsList = new ArrayList<String>();
                for (ServerAddress serverAddr : addressList) {
                    chunkHostsList.add(serverAddr.toString());
                }
                ChunkInfo chunkInfo = new ChunkInfo(chunkHostsList, chunkId);
                Document minMap = (Document) chunkObj.get(MIN);
                Map<String, Object> minFilters = Maps.newHashMap();
                Set keySet = minMap.keySet();
                for (Object keyObj : keySet) {
                    Object object = minMap.get(keyObj);
                    if (!(object instanceof MinKey)) {
                        minFilters.put(keyObj.toString(), object);
                    }
                }
                chunkInfo.setMinFilters(minFilters);
                Map<String, Object> maxFilters = Maps.newHashMap();
                Map maxMap = (Document) chunkObj.get(MAX);
                keySet = maxMap.keySet();
                for (Object keyObj : keySet) {
                    Object object = maxMap.get(keyObj);
                    if (!(object instanceof MaxKey)) {
                        maxFilters.put(keyObj.toString(), object);
                    }
                }
                chunkInfo.setMaxFilters(maxFilters);
                chunkList.add(chunkInfo);
            }
            hasChunks = true;
        }
        // unsharded collection and it will be stored in the primary shard of that database.
        if (!hasChunks) {
            handleUnshardedCollection(getPrimaryShardInfo(client));
        }
    } else {
        handleUnshardedCollection(storagePluginConfig.getHosts());
    }
}