Examples with AffinityUuid org.apache.ignite.cache.affinity.AffinityUuid used on opensource projects

Example 1 with AffinityUuid

use of org.apache.ignite.cache.affinity.AffinityUuid in project ignite by apache.

the class CacheConfig method wordCache.

/**
     * Configure streaming cache.
     */
public static CacheConfiguration<AffinityUuid, String> wordCache() {
    CacheConfiguration<AffinityUuid, String> cfg = new CacheConfiguration<>("words");
    // Index all words streamed into cache.
    cfg.setIndexedTypes(AffinityUuid.class, String.class);
    // Sliding window of 1 seconds.
    cfg.setExpiryPolicyFactory(FactoryBuilder.factoryOf(new CreatedExpiryPolicy(new Duration(SECONDS, 1))));
    return cfg;
}

Example 2 with AffinityUuid

use of org.apache.ignite.cache.affinity.AffinityUuid in project ignite by apache.

the class IgniteCacheCollocatedQuerySelfTest method testColocatedQueryRight.

/**
     * Correct affinity.
     */
public void testColocatedQueryRight() {
    IgniteCache<AffinityUuid, Purchase> c = ignite(0).cache(DEFAULT_CACHE_NAME);
    Random rnd = new GridRandom(SEED);
    for (int i = 0; i < PURCHASES; i++) {
        Purchase p = new Purchase();
        p.productId = rnd.nextInt(PRODUCTS);
        p.price = rnd.nextInt(MAX_PRICE);
        // Correct affinity.
        c.put(new AffinityUuid(p.productId), p);
    }
    List<List<?>> res1 = query(c, false);
    List<List<?>> res2 = query(c, true);
    X.println("res1: " + res1);
    X.println("res2: " + res2);
    assertFalse(res1.isEmpty());
    // TODO fix type conversion issue
    assertEquals(res1.toString(), res2.toString());
}

Example 3 with AffinityUuid

use of org.apache.ignite.cache.affinity.AffinityUuid in project ignite by apache.

the class QueryWords method main.

/**
     * Schedules words query execution.
     *
     * @param args Command line arguments (none required).
     * @throws Exception If failed.
     */
public static void main(String[] args) throws Exception {
    // Mark this cluster member as client.
    Ignition.setClientMode(true);
    try (Ignite ignite = Ignition.start("examples/config/example-ignite.xml")) {
        if (!ExamplesUtils.hasServerNodes(ignite))
            return;
        CacheConfiguration<AffinityUuid, String> cfg = CacheConfig.wordCache();
        // The cache is configured with sliding window holding 1 second of the streaming data.
        try (IgniteCache<AffinityUuid, String> stmCache = ignite.getOrCreateCache(cfg)) {
            // Select top 10 words.
            SqlFieldsQuery top10Qry = new SqlFieldsQuery("select _val, count(_val) as cnt from String group by _val order by cnt desc limit 10", true);
            // Select average, min, and max counts among all the words.
            SqlFieldsQuery statsQry = new SqlFieldsQuery("select avg(cnt), min(cnt), max(cnt) from (select count(_val) as cnt from String group by _val)");
            // Query top 10 popular numbers every 5 seconds.
            while (true) {
                // Execute queries.
                List<List<?>> top10 = stmCache.query(top10Qry).getAll();
                List<List<?>> stats = stmCache.query(statsQry).getAll();
                // Print average count.
                List<?> row = stats.get(0);
                if (row.get(0) != null)
                    System.out.printf("Query results [avg=%d, min=%d, max=%d]%n", row.get(0), row.get(1), row.get(2));
                // Print top 10 words.
                ExamplesUtils.printQueryResults(top10);
                Thread.sleep(5000);
            }
        } finally {
            // Distributed cache could be removed from cluster only by #destroyCache() call.
            ignite.destroyCache(cfg.getName());
        }
    }
}

Example 4 with AffinityUuid

use of org.apache.ignite.cache.affinity.AffinityUuid in project ignite by apache.

the class WordsSocketStreamerServer method main.

/**
     * Starts socket streaming server.
     *
     * @param args Command line arguments (none required).
     * @throws Exception If failed.
     */
public static void main(String[] args) throws Exception {
    // Mark this cluster member as client.
    Ignition.setClientMode(true);
    CacheConfiguration<AffinityUuid, String> cfg = CacheConfig.wordCache();
    try (Ignite ignite = Ignition.start("examples/config/example-ignite.xml")) {
        if (!ExamplesUtils.hasServerNodes(ignite))
            return;
        // The cache is configured with sliding window holding 1 second of the streaming data.
        try (IgniteCache<AffinityUuid, String> stmCache = ignite.getOrCreateCache(cfg)) {
            IgniteDataStreamer<AffinityUuid, String> stmr = ignite.dataStreamer(stmCache.getName());
            InetAddress addr = InetAddress.getLocalHost();
            // Configure socket streamer
            SocketStreamer<String, AffinityUuid, String> sockStmr = new SocketStreamer<>();
            sockStmr.setAddr(addr);
            sockStmr.setPort(PORT);
            sockStmr.setDelimiter(DELIM);
            sockStmr.setIgnite(ignite);
            sockStmr.setStreamer(stmr);
            // Converter from zero-terminated string to Java strings.
            sockStmr.setConverter(new SocketMessageConverter<String>() {

                @Override
                public String convert(byte[] msg) {
                    try {
                        return new String(msg, "ASCII");
                    } catch (UnsupportedEncodingException e) {
                        throw new IgniteException(e);
                    }
                }
            });
            sockStmr.setSingleTupleExtractor(new StreamSingleTupleExtractor<String, AffinityUuid, String>() {

                @Override
                public Map.Entry<AffinityUuid, String> extract(String word) {
                    // words are processed on the same cluster node.
                    return new IgniteBiTuple<>(new AffinityUuid(word), word);
                }
            });
            sockStmr.start();
        } catch (IgniteException e) {
            System.err.println("Streaming server didn't start due to an error: ");
            e.printStackTrace();
        } finally {
            // Distributed cache could be removed from cluster only by #destroyCache() call.
            ignite.destroyCache(cfg.getName());
        }
    }
}

Example 5 with AffinityUuid

use of org.apache.ignite.cache.affinity.AffinityUuid in project ignite by apache.

the class IgniteCacheCollocatedQuerySelfTest method testColocatedQueryWrong.

/**
     * Correct affinity.
     */
public void testColocatedQueryWrong() {
    IgniteCache<AffinityUuid, Purchase> c = ignite(0).cache(DEFAULT_CACHE_NAME);
    Random rnd = new GridRandom(SEED);
    for (int i = 0; i < PURCHASES; i++) {
        Purchase p = new Purchase();
        p.productId = rnd.nextInt(PRODUCTS);
        p.price = rnd.nextInt(MAX_PRICE);
        // Random affinity.
        c.put(new AffinityUuid(rnd.nextInt(PRODUCTS)), p);
    }
    List<List<?>> res1 = query(c, false);
    List<List<?>> res2 = query(c, true);
    X.println("res1: " + res1);
    X.println("res2: " + res2);
    assertFalse(res1.isEmpty());
    assertFalse(res1.equals(res2));
}