Java example code snippets for T-Digest and TopK

src/test/java/io/redis/examples/TDigestExample.java

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+//EXAMPLE: tdigest_tutorial
+//HIDE_START
+package io.redis.examples;
+//HIDE_END
+
+//REMOVE_START
+import org.junit.Assert;
+import org.junit.Test;
+import redis.clients.jedis.UnifiedJedis;
+import java.util.List;
+//REMOVE_END
+
+public class TDigestExample {
+    @Test
+    public void run(){
+        //HIDE_START
+        UnifiedJedis unifiedJedis = new UnifiedJedis("redis://127.0.0.1:6379");
+        //HIDE_END
+
+        //REMOVE_START
+        unifiedJedis.del("racer_ages");
+        unifiedJedis.del("bikes:sales");
+        //REMOVE_END
+
+        //STEP_START tdig_start
+        String res1 = unifiedJedis.tdigestCreate("bikes:sales", 100);
+        System.out.println(res1); // >>> True
+
+        String res2 = unifiedJedis.tdigestAdd("bikes:sales", 21);
+        System.out.println(res2); // >>> OK
+
+        String res3 = unifiedJedis.tdigestAdd("bikes:sales", 150, 95, 75, 34);
+        System.out.println(res3); // >>> OK
+        //STEP_END
+
+        //REMOVE_START
+        Assert.assertEquals("OK","OK");
+        //REMOVE_END
+
+        //STEP_START tdig_cdf
+        String res4 = unifiedJedis.tdigestCreate("racer_ages");
+        System.out.println(res4); // >>> True
+
+        String res5 = unifiedJedis.tdigestAdd("racer_ages", 45.88,
+                44.2,
+                58.03,
+                19.76,
+                39.84,
+                69.28,
+                50.97,
+                25.41,
+                19.27,
+                85.71,
+                42.63);
+        System.out.println(res5); // >>> OK
+
+        List<Long> res6 = unifiedJedis.tdigestRank("racer_ages", 50);
+        System.out.println(res6); // >>> [7]
+
+        List<Long> res7 = unifiedJedis.tdigestRank("racer_ages", 50, 40);
+        System.out.println(res7); // >>> [7, 4]
+        //STEP_END
+
+        //STEP_START tdig_quant
+        List<Double> res8 = unifiedJedis.tdigestQuantile("racer_ages", 0.5);
+        System.out.println(res8); // >>> [44.2]
+
+        List<Double> res9 = unifiedJedis.tdigestByRank("racer_ages", 4);
+        System.out.println(res9); // >>> [42.63]
+        //STEP_END
+
+        //STEP_START tdig_min
+        double res10 = unifiedJedis.tdigestMin("racer_ages");
+        System.out.println(res10); // >>> 19.27
+
+        double res11 = unifiedJedis.tdigestMax("racer_ages");
+        System.out.println(res11); // >>> 85.71
+        //STEP_END
+
+        //STEP_START tdig_reset
+        String res12 = unifiedJedis.tdigestReset("racer_ages");
+        System.out.println(res12); // >>> OK
+        //STEP_END
+    }
+}

src/test/java/io/redis/examples/TopKExample.java

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+//EXAMPLE: topk_tutorial
+//HIDE_START
+package io.redis.examples;
+//HIDE_END
+
+//REMOVE_START
+import org.junit.Test;
+import redis.clients.jedis.UnifiedJedis;
+
+import java.util.List;
+//REMOVE_END
+
+public class TopKExample {
+    @Test
+    public void run(){
+        //HIDE_START
+        UnifiedJedis unifiedJedis = new UnifiedJedis("redis://127.0.0.1:6379");
+        //HIDE_END
+
+        //REMOVE_START
+        unifiedJedis.del("bikes:keywords");
+        //REMOVE_END
+
+        //STEP_START topk
+        String res1 = unifiedJedis.topkReserve("bikes:keywords", 5L, 2000L, 7L, 0.925D);
+        System.out.println(res1); // >>> True
+
+        List<String> res2 = unifiedJedis.topkAdd("bikes:keywords",
+                "store",
+                "seat",
+                "handlebars",
+                "handles",
+                "pedals",
+                "tires",
+                "store",
+                "seat");
+
+        System.out.println(res2); // >>> [None, None, None, None, None, 'handlebars', None, None]
+
+        List<String> res3 = unifiedJedis.topkList("bikes:keywords");
+        System.out.println(res3); // >>> ['store', 'seat', 'pedals', 'tires', 'handles']
+
+        List<Boolean> res4 = unifiedJedis.topkQuery("bikes:keywords", "store", "handlebars");
+        System.out.println(res4); // >>> [1, 0]
+        //STEP_END
+    }
+}