Examples of org.apache.curator.framework.recipes.shared.SharedCount.trySetCount()

Package org.apache.curator.framework.recipes.shared

Class org.apache.curator.framework.recipes.shared.SharedCount

Examples of org.apache.curator.framework.recipes.shared.SharedCount.trySetCount()

org.apache.curator.framework.recipes.shared.SharedCount.trySetCount()
Changes the shared count only if its value has not changed since this client last read it. If the count has changed, the value is not set and this client's view of the value is updated. i.e. if the count is not successful you can get the updated value by calling {@link #getCount()}. @deprecated use {@link #trySetCount(VersionedValue,int)} for stronger atomicityguarantees. Even if this object's internal state is up-to-date, the caller has no way to ensure that they've read the most recently seen count. @param newCount the new value to attempt @return true if the change attempt was successful, false if not. If the changewas not successful, {@link #getCount()} will return the updated value @throws Exception ZK errors, interruptions, etc.

                        @Override
                        public Object call() throws Exception
                        {
                            Assert.assertTrue(latch.await(timing.forWaiting().seconds(), TimeUnit.SECONDS));
                            timing.sleepABit(); // make sure second acquire is waiting
                            Assert.assertTrue(count.trySetCount(2));
                            return null;
                        }
                    }
                );

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                    @Override
                    public Object call() throws Exception
                    {
                        Assert.assertTrue(latch.await(timing.seconds(), TimeUnit.SECONDS));
                        timing.sleepABit(); // make sure second acquire is waiting
                        Assert.assertTrue(count.trySetCount(2));
                        return null;
                    }
                }
            );

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                        @Override
                        public Object call() throws Exception
                        {
                            Assert.assertTrue(latch.await(timing.forWaiting().seconds(), TimeUnit.SECONDS));
                            timing.sleepABit(); // make sure second acquire is waiting
                            Assert.assertTrue(count.trySetCount(2));
                            return null;
                        }
                    }
                );

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                        @Override
                        public Object call() throws Exception
                        {
                            Assert.assertTrue(latch1.await(timing.forWaiting().seconds(), TimeUnit.SECONDS));
                            timing.sleepABit(); // make sure second acquire is waiting
                            Assert.assertTrue(count.trySetCount(2));
                            //Make sure second acquire takes less than full waiting time:
                            timing.sleepABit();
                            Assert.assertTrue(latch2.await(0, TimeUnit.SECONDS));
                            return null;
                        }

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                        @Override
                        public Object call() throws Exception
                        {
                            Assert.assertTrue(latch1.await(timing.forWaiting().seconds(), TimeUnit.SECONDS));
                            timing.sleepABit(); // make sure second acquire is waiting
                            Assert.assertTrue(count.trySetCount(2));
                            //Make sure second acquire takes less than full waiting time:
                            timing.sleepABit();
                            Assert.assertTrue(latch2.await(0, TimeUnit.SECONDS));
                            return null;
                        }

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