Java Code Examples for redis.clients.jedis.Pipeline#exec()

@Test
public void multiWithMassiveRequests() {
  Pipeline p = jedis.pipelined();
  p.multi();

  List<Response<?>> responseList = new ArrayList<Response<?>>();
  for (int i = 0; i < 100000; i++) {
    // any operation should be ok, but shouldn't forget about timeout
    responseList.add(p.setbit("test", 1, true));
  }

  Response<List<Object>> exec = p.exec();
  p.sync();

  // we don't need to check return value
  // if below codes run without throwing Exception, we're ok
  exec.get();

  for (Response<?> resp : responseList) {
    resp.get();
  }
}
 

@Test
public void multiWithSync() {
  jedis.set("foo", "314");
  jedis.set("bar", "foo");
  jedis.set("hello", "world");
  Pipeline p = jedis.pipelined();
  Response<String> r1 = p.get("bar");
  p.multi();
  Response<String> r2 = p.get("foo");
  p.exec();
  Response<String> r3 = p.get("hello");
  p.sync();

  // before multi
  assertEquals("foo", r1.get());
  // It should be readable whether exec's response was built or not
  assertEquals("314", r2.get());
  // after multi
  assertEquals("world", r3.get());
}
 

public void testCombPipelineTrans() {// 0.099秒
	Jedis jedis = new Jedis("120.25.241.144", 6379);
	jedis.auth("b840fc02d52404542994");

	long start = System.currentTimeMillis();
	Pipeline pipeline = jedis.pipelined();
	pipeline.multi();
	for (int i = 0; i < 1000; i++) {
		pipeline.set("n" + i, "n" + i);
		System.out.println(i);
	}
	pipeline.exec();
	pipeline.syncAndReturnAll();
	long end = System.currentTimeMillis();
	System.out.println("共花费：" + (end - start) / 1000.0 + "秒");

	jedis.disconnect();
	try {
		Closeables.close(jedis, true);
	} catch (IOException e) {
		e.printStackTrace();
	}
}
 

/**
 * Pop a ready room from "room_ready_set_<N>".
 */
public static final Tuple popKeyFromZset(String zsetName) {
	Pipeline pipeline = JedisFactory.getJedis().pipelined();
	
	try {
		pipeline.watch(zsetName);
		Response<Set<Tuple>> results = pipeline.zrangeWithScores(zsetName, 0, 0);
		pipeline.multi();
		pipeline.zremrangeByRank(zsetName, 0, 0);
		pipeline.exec();
		pipeline.sync();
		
		Set<Tuple> values = results.get();
		if (values.size() > 0) {
			return values.iterator().next();
		}
	} catch (Exception e) {
		try {
			pipeline.discard();
		} catch (Exception e1) {
		}
		e.printStackTrace();
	}
	return null;
}
 

public static void PipelineTransactions(Jedis jedis, JedisPool jedisPool) {
	try {
		Pipeline pipeLine = jedis.pipelined();
		pipeLine.set("value", "100");
		pipeLine.watch("value");
		pipeLine.multi();// ��������
		pipeLine.incrBy("value", 10);// ����10
		// �Դ������������ʹ���˲�֧�ֵIJ���
		// pipeLine.lpush("value", "error");//ִ�д���IJ���lpush
		pipeLine.incrBy("value", 10);// �ٴε���10
		// ִ��exec����,��ȡ"δ��"�ķ��ؽ��
		Response<List<Object>> listResponse = pipeLine.exec();
		pipeLine.sync();// ����pipeling
		List<Object> result = listResponse.get();
		if (result != null && result.size() > 0) {
			for (Object o : result)
				System.out.println(o.toString());
		}
		// ��Ȼ�����еڶ�������ʧ����,����Ӱ��value��ֵ
		System.out.println("\nvalue is " + jedis.get("value"));
	} catch (Exception e) {
		// jedisPool.returnBrokenResource(jedis);
		e.printStackTrace();
	} finally {
		jedisPool.returnResource(jedis);
	}
}
 

@Test
public void multi() {
  Pipeline p = jedis.pipelined();
  p.multi();
  Response<Long> r1 = p.hincrBy("a", "f1", -1);
  Response<Long> r2 = p.hincrBy("a", "f1", -2);
  Response<List<Object>> r3 = p.exec();
  List<Object> result = p.syncAndReturnAll();

  assertEquals(new Long(-1), r1.get());
  assertEquals(new Long(-3), r2.get());

  assertEquals(4, result.size());

  assertEquals("OK", result.get(0));
  assertEquals("QUEUED", result.get(1));
  assertEquals("QUEUED", result.get(2));

  // 4th result is a list with the results from the multi
  @SuppressWarnings("unchecked")
  List<Object> multiResult = (List<Object>) result.get(3);
  assertEquals(new Long(-1), multiResult.get(0));
  assertEquals(new Long(-3), multiResult.get(1));

  assertEquals(new Long(-1), r3.get().get(0));
  assertEquals(new Long(-3), r3.get().get(1));

}
 

@Test
public void testCloseableWithMulti() throws IOException {
  // we need to test with fresh instance of Jedis
  Jedis jedis2 = new Jedis(hnp.getHost(), hnp.getPort(), 500);
  jedis2.auth("foobared");

  Pipeline pipeline = jedis2.pipelined();
  Response<String> retFuture1 = pipeline.set("a", "1");
  Response<String> retFuture2 = pipeline.set("b", "2");

  pipeline.multi();

  pipeline.set("a", "a");
  pipeline.set("b", "b");

  pipeline.close();

  try {
    pipeline.exec();
    fail("close should discard transaction");
  } catch (JedisDataException e) {
    assertTrue(e.getMessage().contains("EXEC without MULTI"));
    // pass
  }

  // it shouldn't meet any exception
  retFuture1.get();
  retFuture2.get();
}
 

private static void pipleWithTransation(Pipeline pipeline) {
    for (int i = 0; i < KEY_COUNT; i++) {
        pipeline.set("pipletransation" + i, i + "");
    }
    pipeline.exec();
}
 

@Test(expected = JedisDataException.class)
public void pipelineExecShoudThrowJedisDataExceptionWhenNotInMulti() {
  Pipeline pipeline = jedis.pipelined();
  pipeline.exec();
}
 

@Test
public void testPipelinedTransactionResponse() {

  String key1 = "key1";
  String val1 = "val1";

  String key2 = "key2";
  String val2 = "val2";

  String key3 = "key3";
  String field1 = "field1";
  String field2 = "field2";
  String field3 = "field3";
  String field4 = "field4";

  String value1 = "value1";
  String value2 = "value2";
  String value3 = "value3";
  String value4 = "value4";

  Map<String, String> hashMap = new HashMap<String, String>();
  hashMap.put(field1, value1);
  hashMap.put(field2, value2);

  String key4 = "key4";
  Map<String, String> hashMap1 = new HashMap<String, String>();
  hashMap1.put(field3, value3);
  hashMap1.put(field4, value4);

  jedis.set(key1, val1);
  jedis.set(key2, val2);
  jedis.hmset(key3, hashMap);
  jedis.hmset(key4, hashMap1);

  Pipeline pipeline = jedis.pipelined();
  pipeline.multi();

  pipeline.get(key1);
  pipeline.hgetAll(key2);
  pipeline.hgetAll(key3);
  pipeline.get(key4);

  Response<List<Object>> response = pipeline.exec();
  pipeline.sync();

  List<Object> result = response.get();

  assertEquals(4, result.size());

  assertEquals("val1", result.get(0));

  assertTrue(result.get(1) instanceof JedisDataException);

  Map<String, String> hashMapReceived = (Map<String, String>) result.get(2);
  Iterator<String> iterator = hashMapReceived.keySet().iterator();
  String mapKey1 = iterator.next();
  String mapKey2 = iterator.next();
  assertFalse(iterator.hasNext());
  verifyHasBothValues(mapKey1, mapKey2, field1, field2);
  String mapValue1 = hashMapReceived.get(mapKey1);
  String mapValue2 = hashMapReceived.get(mapKey2);
  verifyHasBothValues(mapValue1, mapValue2, value1, value2);

  assertTrue(result.get(3) instanceof JedisDataException);
}