Merge branch '3.0.0' into feature/map_cache_max_size
Zun
8 years ago
commit
0feb684f39
@ -0,0 +1,179 @@
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/**
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* Copyright 2016 Nikita Koksharov
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*
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||||||
|
* Licensed under the Apache License, Version 2.0 (the "License");
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||||||
|
* you may not use this file except in compliance with the License.
|
||||||
|
* You may obtain a copy of the License at
|
||||||
|
*
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||||||
|
* http://www.apache.org/licenses/LICENSE-2.0
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||||||
|
*
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||||||
|
* Unless required by applicable law or agreed to in writing, software
|
||||||
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
||||||
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||||
|
* See the License for the specific language governing permissions and
|
||||||
|
* limitations under the License.
|
||||||
|
*/
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||||||
|
package org.redisson.api;
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|
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import java.util.concurrent.TimeUnit;
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import org.reactivestreams.Publisher;
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/**
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*
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* @author Nikita Koksharov
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*
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*/
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public interface RSemaphoreReactive extends RExpirableReactive {
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/**
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* Acquires a permit only if one is available at the
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* time of invocation.
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*
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* <p>Acquires a permit, if one is available and returns immediately,
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* with the value {@code true},
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* reducing the number of available permits by one.
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*
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* <p>If no permit is available then this method will return
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* immediately with the value {@code false}.
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*
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* @return {@code true} if a permit was acquired and {@code false}
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* otherwise
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*/
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Publisher<Boolean> tryAcquire();
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/**
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* Acquires the given number of permits only if all are available at the
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* time of invocation.
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*
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* <p>Acquires a permits, if all are available and returns immediately,
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* with the value {@code true},
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* reducing the number of available permits by given number of permits.
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*
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* <p>If no permits are available then this method will return
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* immediately with the value {@code false}.
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*
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* @param permits the number of permits to acquire
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* @return {@code true} if a permit was acquired and {@code false}
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* otherwise
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*/
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Publisher<Boolean> tryAcquire(int permits);
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/**
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* Acquires a permit from this semaphore.
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*
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* <p>Acquires a permit, if one is available and returns immediately,
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* reducing the number of available permits by one.
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*
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* @return void
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*
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*/
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Publisher<Void> acquire();
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/**
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* Acquires the given number of permits, if they are available,
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* and returns immediately, reducing the number of available permits
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* by the given amount.
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*
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* @param permits the number of permits to acquire
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* @throws IllegalArgumentException if {@code permits} is negative
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* @return void
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*/
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Publisher<Void> acquire(int permits);
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/**
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* Releases a permit, returning it to the semaphore.
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*
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* <p>Releases a permit, increasing the number of available permits by
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* one. If any threads of Redisson client are trying to acquire a permit,
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* then one is selected and given the permit that was just released.
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*
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* <p>There is no requirement that a thread that releases a permit must
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* have acquired that permit by calling {@link #acquire()}.
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* Correct usage of a semaphore is established by programming convention
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* in the application.
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*
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|
* @return void
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*/
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Publisher<Void> release();
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/**
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* Releases the given number of permits, returning them to the semaphore.
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*
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|
* <p>Releases the given number of permits, increasing the number of available permits by
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* the given number of permits. If any threads of Redisson client are trying to
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* acquire a permits, then next threads is selected and tries to acquire the permits that was just released.
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*
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|
* <p>There is no requirement that a thread that releases a permits must
|
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|
* have acquired that permit by calling {@link #acquire()}.
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||||||
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* Correct usage of a semaphore is established by programming convention
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||||||
|
* in the application.
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||||||
|
*
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|
* @param permits amount
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||||||
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* @return void
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||||||
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*/
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Publisher<Void> release(int permits);
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/**
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* Sets number of permits.
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*
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|
* @param permits - number of permits
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* @return <code>true</code> if permits has been set successfully, otherwise <code>false</code>.
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*/
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Publisher<Boolean> trySetPermits(int permits);
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/**
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|
* <p>Acquires a permit, if one is available and returns immediately,
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|
* with the value {@code true},
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|
* reducing the number of available permits by one.
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||||||
|
*
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||||||
|
* <p>If a permit is acquired then the value {@code true} is returned.
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|
*
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|
* <p>If the specified waiting time elapses then the value {@code false}
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|
* is returned. If the time is less than or equal to zero, the method
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* will not wait at all.
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*
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||||||
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* @param waitTime the maximum time to wait for a permit
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||||||
|
* @param unit the time unit of the {@code timeout} argument
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* @return {@code true} if a permit was acquired and {@code false}
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* if the waiting time elapsed before a permit was acquired
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*/
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Publisher<Boolean> tryAcquire(long waitTime, TimeUnit unit);
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/**
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* Acquires the given number of permits only if all are available
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||||||
|
* within the given waiting time.
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|
*
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||||||
|
* <p>Acquires a permits, if all are available and returns immediately,
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||||||
|
* with the value {@code true},
|
||||||
|
* reducing the number of available permits by one.
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||||||
|
*
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||||||
|
* <p>If a permits is acquired then the value {@code true} is returned.
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||||||
|
*
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||||||
|
* <p>If the specified waiting time elapses then the value {@code false}
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||||||
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* is returned. If the time is less than or equal to zero, the method
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||||||
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* will not wait at all.
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||||||
|
*
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||||||
|
* @param permits amount
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||||||
|
* @param waitTime the maximum time to wait for a available permits
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||||||
|
* @param unit the time unit of the {@code timeout} argument
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||||||
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* @return {@code true} if a permit was acquired and {@code false}
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||||||
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* if the waiting time elapsed before a permit was acquired
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||||||
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*/
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||||||
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Publisher<Boolean> tryAcquire(int permits, long waitTime, TimeUnit unit);
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||||||
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||||||
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/**
|
||||||
|
* Shrinks the number of available permits by the indicated
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||||||
|
* reduction. This method can be useful in subclasses that use
|
||||||
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* semaphores to track resources that become unavailable. This
|
||||||
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* method differs from {@link #acquire()} in that it does not block
|
||||||
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* waiting for permits to become available.
|
||||||
|
*
|
||||||
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* @param permits - reduction the number of permits to remove
|
||||||
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* @return void
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||||||
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* @throws IllegalArgumentException if {@code reduction} is negative
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||||||
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*/
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||||||
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Publisher<Void> reducePermits(int permits);
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||||||
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||||||
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}
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@ -0,0 +1,74 @@
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|
/**
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||||||
|
* Copyright 2016 Nikita Koksharov
|
||||||
|
*
|
||||||
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
||||||
|
* you may not use this file except in compliance with the License.
|
||||||
|
* You may obtain a copy of the License at
|
||||||
|
*
|
||||||
|
* http://www.apache.org/licenses/LICENSE-2.0
|
||||||
|
*
|
||||||
|
* Unless required by applicable law or agreed to in writing, software
|
||||||
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
||||||
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||||
|
* See the License for the specific language governing permissions and
|
||||||
|
* limitations under the License.
|
||||||
|
*/
|
||||||
|
package org.redisson.codec;
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import org.redisson.client.codec.Codec;
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import org.redisson.client.protocol.Decoder;
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import org.redisson.client.protocol.Encoder;
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||||||
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/**
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|
*
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* @author Nikita Koksharov
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*
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||||||
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*/
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public class CompositeCodec implements Codec {
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private final Codec mapKeyCodec;
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private final Codec mapValueCodec;
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private final Codec valueCodec;
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public CompositeCodec(Codec mapKeyCodec, Codec mapValueCodec) {
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this(mapKeyCodec, mapValueCodec, null);
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}
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public CompositeCodec(Codec mapKeyCodec, Codec mapValueCodec, Codec valueCodec) {
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super();
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this.mapKeyCodec = mapKeyCodec;
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this.mapValueCodec = mapValueCodec;
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this.valueCodec = valueCodec;
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|
}
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||||||
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|
||||||
|
@Override
|
||||||
|
public Decoder<Object> getMapValueDecoder() {
|
||||||
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return mapValueCodec.getMapKeyDecoder();
|
||||||
|
}
|
||||||
|
|
||||||
|
@Override
|
||||||
|
public Encoder getMapValueEncoder() {
|
||||||
|
return mapValueCodec.getMapValueEncoder();
|
||||||
|
}
|
||||||
|
|
||||||
|
@Override
|
||||||
|
public Decoder<Object> getMapKeyDecoder() {
|
||||||
|
return mapKeyCodec.getMapKeyDecoder();
|
||||||
|
}
|
||||||
|
|
||||||
|
@Override
|
||||||
|
public Encoder getMapKeyEncoder() {
|
||||||
|
return mapKeyCodec.getMapKeyEncoder();
|
||||||
|
}
|
||||||
|
|
||||||
|
@Override
|
||||||
|
public Decoder<Object> getValueDecoder() {
|
||||||
|
return valueCodec.getValueDecoder();
|
||||||
|
}
|
||||||
|
|
||||||
|
@Override
|
||||||
|
public Encoder getValueEncoder() {
|
||||||
|
return valueCodec.getValueEncoder();
|
||||||
|
}
|
||||||
|
|
||||||
|
}
|
||||||
@ -0,0 +1,139 @@
|
|||||||
|
/**
|
||||||
|
* Copyright 2016 Nikita Koksharov
|
||||||
|
*
|
||||||
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
||||||
|
* you may not use this file except in compliance with the License.
|
||||||
|
* You may obtain a copy of the License at
|
||||||
|
*
|
||||||
|
* http://www.apache.org/licenses/LICENSE-2.0
|
||||||
|
*
|
||||||
|
* Unless required by applicable law or agreed to in writing, software
|
||||||
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
||||||
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||||
|
* See the License for the specific language governing permissions and
|
||||||
|
* limitations under the License.
|
||||||
|
*/
|
||||||
|
package org.redisson.connection;
|
||||||
|
|
||||||
|
import java.net.InetAddress;
|
||||||
|
import java.net.URI;
|
||||||
|
import java.net.UnknownHostException;
|
||||||
|
import java.util.HashMap;
|
||||||
|
import java.util.Map;
|
||||||
|
import java.util.Map.Entry;
|
||||||
|
import java.util.Set;
|
||||||
|
import java.util.concurrent.TimeUnit;
|
||||||
|
|
||||||
|
import org.redisson.client.RedisConnectionException;
|
||||||
|
import org.redisson.connection.ClientConnectionsEntry.FreezeReason;
|
||||||
|
import org.redisson.misc.URIBuilder;
|
||||||
|
import org.slf4j.Logger;
|
||||||
|
import org.slf4j.LoggerFactory;
|
||||||
|
|
||||||
|
import io.netty.util.concurrent.GlobalEventExecutor;
|
||||||
|
import io.netty.util.concurrent.ScheduledFuture;
|
||||||
|
|
||||||
|
/**
|
||||||
|
* DNS changes monitor.
|
||||||
|
*
|
||||||
|
* @author Nikita Koksharov
|
||||||
|
*
|
||||||
|
*/
|
||||||
|
public class DNSMonitor {
|
||||||
|
|
||||||
|
private static final Logger log = LoggerFactory.getLogger(DNSMonitor.class);
|
||||||
|
|
||||||
|
private ScheduledFuture<?> dnsMonitorFuture;
|
||||||
|
|
||||||
|
private ConnectionManager connectionManager;
|
||||||
|
|
||||||
|
private final Map<URI, InetAddress> masters = new HashMap<URI, InetAddress>();
|
||||||
|
private final Map<URI, InetAddress> slaves = new HashMap<URI, InetAddress>();
|
||||||
|
|
||||||
|
private long dnsMonitoringInterval;
|
||||||
|
|
||||||
|
public DNSMonitor(ConnectionManager connectionManager, Set<URI> masterHosts, Set<URI> slaveHosts, long dnsMonitoringInterval) {
|
||||||
|
for (URI host : masterHosts) {
|
||||||
|
try {
|
||||||
|
masters.put(host, InetAddress.getByName(host.getHost()));
|
||||||
|
} catch (UnknownHostException e) {
|
||||||
|
throw new RedisConnectionException("Unknown host: " + host.getHost(), e);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
for (URI host : slaveHosts) {
|
||||||
|
try {
|
||||||
|
slaves.put(host, InetAddress.getByName(host.getHost()));
|
||||||
|
} catch (UnknownHostException e) {
|
||||||
|
throw new RedisConnectionException("Unknown host: " + host.getHost(), e);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
this.connectionManager = connectionManager;
|
||||||
|
this.dnsMonitoringInterval = dnsMonitoringInterval;
|
||||||
|
}
|
||||||
|
|
||||||
|
public void start() {
|
||||||
|
monitorDnsChange();
|
||||||
|
log.debug("DNS monitoring enabled; Current masters: {}, slaves: {}", masters, slaves);
|
||||||
|
}
|
||||||
|
|
||||||
|
public void stop() {
|
||||||
|
if (dnsMonitorFuture != null) {
|
||||||
|
dnsMonitorFuture.cancel(true);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
private void monitorDnsChange() {
|
||||||
|
dnsMonitorFuture = GlobalEventExecutor.INSTANCE.schedule(new Runnable() {
|
||||||
|
@Override
|
||||||
|
public void run() {
|
||||||
|
// As InetAddress.getByName call is blocking. Method should be run in dedicated thread
|
||||||
|
connectionManager.getExecutor().execute(new Runnable() {
|
||||||
|
@Override
|
||||||
|
public void run() {
|
||||||
|
try {
|
||||||
|
for (Entry<URI, InetAddress> entry : masters.entrySet()) {
|
||||||
|
InetAddress master = entry.getValue();
|
||||||
|
InetAddress now = InetAddress.getByName(entry.getKey().getHost());
|
||||||
|
if (!now.getHostAddress().equals(master.getHostAddress())) {
|
||||||
|
log.info("Detected DNS change. {} has changed from {} to {}", entry.getKey().getHost(), master.getHostAddress(), now.getHostAddress());
|
||||||
|
for (MasterSlaveEntry entrySet : connectionManager.getEntrySet()) {
|
||||||
|
if (entrySet.getClient().getAddr().getHostName().equals(entry.getKey().getHost())
|
||||||
|
&& entrySet.getClient().getAddr().getPort() == entry.getKey().getPort()) {
|
||||||
|
entrySet.changeMaster(entry.getKey());
|
||||||
|
}
|
||||||
|
}
|
||||||
|
masters.put(entry.getKey(), now);
|
||||||
|
log.info("Master {} has been changed", entry.getKey().getHost());
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
for (Entry<URI, InetAddress> entry : slaves.entrySet()) {
|
||||||
|
InetAddress slave = entry.getValue();
|
||||||
|
InetAddress updatedSlave = InetAddress.getByName(entry.getKey().getHost());
|
||||||
|
if (!updatedSlave.getHostAddress().equals(slave.getHostAddress())) {
|
||||||
|
log.info("Detected DNS change. {} has changed from {} to {}", entry.getKey().getHost(), slave.getHostAddress(), updatedSlave.getHostAddress());
|
||||||
|
for (MasterSlaveEntry masterSlaveEntry : connectionManager.getEntrySet()) {
|
||||||
|
URI uri = URIBuilder.create("redis://" + slave.getHostAddress() + ":" + entry.getKey().getPort());
|
||||||
|
if (masterSlaveEntry.slaveDown(uri, FreezeReason.MANAGER)) {
|
||||||
|
masterSlaveEntry.slaveUp(entry.getKey(), FreezeReason.MANAGER);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
slaves.put(entry.getKey(), updatedSlave);
|
||||||
|
log.info("Slave {} has been changed", entry.getKey().getHost());
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
} catch (Exception e) {
|
||||||
|
log.error(e.getMessage(), e);
|
||||||
|
} finally {
|
||||||
|
monitorDnsChange();
|
||||||
|
}
|
||||||
|
}
|
||||||
|
});
|
||||||
|
}
|
||||||
|
|
||||||
|
}, dnsMonitoringInterval, TimeUnit.MILLISECONDS);
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
}
|
||||||
@ -0,0 +1,152 @@
|
|||||||
|
/**
|
||||||
|
* Copyright 2016 Nikita Koksharov
|
||||||
|
*
|
||||||
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
||||||
|
* you may not use this file except in compliance with the License.
|
||||||
|
* You may obtain a copy of the License at
|
||||||
|
*
|
||||||
|
* http://www.apache.org/licenses/LICENSE-2.0
|
||||||
|
*
|
||||||
|
* Unless required by applicable law or agreed to in writing, software
|
||||||
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
||||||
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||||
|
* See the License for the specific language governing permissions and
|
||||||
|
* limitations under the License.
|
||||||
|
*/
|
||||||
|
package org.redisson.reactive;
|
||||||
|
|
||||||
|
import java.util.UUID;
|
||||||
|
import java.util.concurrent.TimeUnit;
|
||||||
|
|
||||||
|
import org.reactivestreams.Publisher;
|
||||||
|
import org.redisson.RedissonLock;
|
||||||
|
import org.redisson.RedissonSemaphore;
|
||||||
|
import org.redisson.api.RFuture;
|
||||||
|
import org.redisson.api.RLockAsync;
|
||||||
|
import org.redisson.api.RSemaphoreAsync;
|
||||||
|
import org.redisson.api.RSemaphoreReactive;
|
||||||
|
import org.redisson.command.CommandAsyncExecutor;
|
||||||
|
import org.redisson.command.CommandReactiveExecutor;
|
||||||
|
import org.redisson.pubsub.SemaphorePubSub;
|
||||||
|
|
||||||
|
import reactor.fn.Supplier;
|
||||||
|
|
||||||
|
/**
|
||||||
|
*
|
||||||
|
* @author Nikita Koksharov
|
||||||
|
*
|
||||||
|
*/
|
||||||
|
public class RedissonSemaphoreReactive extends RedissonExpirableReactive implements RSemaphoreReactive {
|
||||||
|
|
||||||
|
private final RSemaphoreAsync instance;
|
||||||
|
|
||||||
|
public RedissonSemaphoreReactive(CommandReactiveExecutor connectionManager, String name, SemaphorePubSub semaphorePubSub) {
|
||||||
|
super(connectionManager, name);
|
||||||
|
instance = new RedissonSemaphore(commandExecutor, name, semaphorePubSub);
|
||||||
|
}
|
||||||
|
|
||||||
|
protected RLockAsync createLock(CommandAsyncExecutor connectionManager, String name, UUID id) {
|
||||||
|
return new RedissonLock(commandExecutor, name, id);
|
||||||
|
}
|
||||||
|
|
||||||
|
@Override
|
||||||
|
public Publisher<Boolean> tryAcquire() {
|
||||||
|
return reactive(new Supplier<RFuture<Boolean>>() {
|
||||||
|
@Override
|
||||||
|
public RFuture<Boolean> get() {
|
||||||
|
return instance.tryAcquireAsync();
|
||||||
|
}
|
||||||
|
});
|
||||||
|
}
|
||||||
|
|
||||||
|
@Override
|
||||||
|
public Publisher<Boolean> tryAcquire(final int permits) {
|
||||||
|
return reactive(new Supplier<RFuture<Boolean>>() {
|
||||||
|
@Override
|
||||||
|
public RFuture<Boolean> get() {
|
||||||
|
return instance.tryAcquireAsync(permits);
|
||||||
|
}
|
||||||
|
});
|
||||||
|
}
|
||||||
|
|
||||||
|
@Override
|
||||||
|
public Publisher<Void> acquire() {
|
||||||
|
return reactive(new Supplier<RFuture<Void>>() {
|
||||||
|
@Override
|
||||||
|
public RFuture<Void> get() {
|
||||||
|
return instance.acquireAsync();
|
||||||
|
}
|
||||||
|
});
|
||||||
|
}
|
||||||
|
|
||||||
|
@Override
|
||||||
|
public Publisher<Void> acquire(final int permits) {
|
||||||
|
return reactive(new Supplier<RFuture<Void>>() {
|
||||||
|
@Override
|
||||||
|
public RFuture<Void> get() {
|
||||||
|
return instance.acquireAsync(permits);
|
||||||
|
}
|
||||||
|
});
|
||||||
|
}
|
||||||
|
|
||||||
|
@Override
|
||||||
|
public Publisher<Void> release() {
|
||||||
|
return reactive(new Supplier<RFuture<Void>>() {
|
||||||
|
@Override
|
||||||
|
public RFuture<Void> get() {
|
||||||
|
return instance.releaseAsync();
|
||||||
|
}
|
||||||
|
});
|
||||||
|
}
|
||||||
|
|
||||||
|
@Override
|
||||||
|
public Publisher<Void> release(final int permits) {
|
||||||
|
return reactive(new Supplier<RFuture<Void>>() {
|
||||||
|
@Override
|
||||||
|
public RFuture<Void> get() {
|
||||||
|
return instance.releaseAsync(permits);
|
||||||
|
}
|
||||||
|
});
|
||||||
|
}
|
||||||
|
|
||||||
|
@Override
|
||||||
|
public Publisher<Boolean> trySetPermits(final int permits) {
|
||||||
|
return reactive(new Supplier<RFuture<Boolean>>() {
|
||||||
|
@Override
|
||||||
|
public RFuture<Boolean> get() {
|
||||||
|
return instance.trySetPermitsAsync(permits);
|
||||||
|
}
|
||||||
|
});
|
||||||
|
}
|
||||||
|
|
||||||
|
@Override
|
||||||
|
public Publisher<Boolean> tryAcquire(final long waitTime, final TimeUnit unit) {
|
||||||
|
return reactive(new Supplier<RFuture<Boolean>>() {
|
||||||
|
@Override
|
||||||
|
public RFuture<Boolean> get() {
|
||||||
|
return instance.tryAcquireAsync(waitTime, unit);
|
||||||
|
}
|
||||||
|
});
|
||||||
|
}
|
||||||
|
|
||||||
|
@Override
|
||||||
|
public Publisher<Boolean> tryAcquire(final int permits, final long waitTime, final TimeUnit unit) {
|
||||||
|
return reactive(new Supplier<RFuture<Boolean>>() {
|
||||||
|
@Override
|
||||||
|
public RFuture<Boolean> get() {
|
||||||
|
return instance.tryAcquireAsync(permits, waitTime, unit);
|
||||||
|
}
|
||||||
|
});
|
||||||
|
}
|
||||||
|
|
||||||
|
@Override
|
||||||
|
public Publisher<Void> reducePermits(final int permits) {
|
||||||
|
return reactive(new Supplier<RFuture<Void>>() {
|
||||||
|
@Override
|
||||||
|
public RFuture<Void> get() {
|
||||||
|
return instance.reducePermitsAsync(permits);
|
||||||
|
}
|
||||||
|
});
|
||||||
|
}
|
||||||
|
|
||||||
|
}
|
||||||
Loading…
Reference in New Issue