Merge branch 'master' into 3.0.0

redisson/checkstyle.xml

@@ -128,7 +128,9 @@
         <module name="EmptyForIteratorPad"/>
         <module name="MethodParamPad"/>
         <module name="NoWhitespaceBefore"/>
-        <module name="OperatorWrap"/>
+        <module name="OperatorWrap">
+           <property name="tokens" value="QUESTION, COLON, EQUAL, NOT_EQUAL, DIV, MINUS, STAR, MOD, SR, BSR, GE, GT, SL, LE, LT, BXOR, BOR, LOR, BAND, LAND, TYPE_EXTENSION_AND, LITERAL_INSTANCEOF"/>
+        </module>
         <module name="ParenPad"/>
         <module name="TypecastParenPad"/>
         <module name="WhitespaceAfter"/>

redisson/pom.xml

@@ -350,7 +350,7 @@
             <plugin>
                 <groupId>org.codehaus.mojo</groupId>
                 <artifactId>versions-maven-plugin</artifactId>
-                <version>2.2</version>
+                <version>2.5</version>
             </plugin>
 
             <plugin>
@@ -372,7 +372,7 @@
             <plugin>
                 <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-pmd-plugin</artifactId>
-                <version>3.6</version>
+                <version>3.9.0</version>
                 <executions>
                     <execution>
                         <phase>verify</phase>
@@ -393,7 +393,7 @@
             <plugin>
                 <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-checkstyle-plugin</artifactId>
-                <version>2.17</version>
+                <version>3.0.0</version>
                 <executions>
                     <execution>
                         <phase>verify</phase>
@@ -411,7 +411,7 @@
 
             <plugin>
                 <artifactId>maven-compiler-plugin</artifactId>
-                <version>3.6.1</version>
+                <version>3.7.0</version>
                 <configuration>
                     <source>${source.version}</source>
                     <target>${source.version}</target>
@@ -437,7 +437,7 @@
             <plugin>
                 <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-surefire-plugin</artifactId>
-                <version>2.19.1</version>
+                <version>2.21.0</version>
                 <configuration>
                     <properties>
                         <property>

redisson/src/main/java/org/redisson/RedissonLiveObjectService.java

@@ -485,8 +485,12 @@ public class RedissonLiveObjectService implements RLiveObjectService {
     }
 
     @Override
-    public <T, K> void delete(Class<T> entityClass, K id) {
+    public <T, K> boolean delete(Class<T> entityClass, K id) {
-        asLiveObject(get(entityClass, id)).delete();
+        T entity = get(entityClass, id);
+        if (entity == null) {
+            return false;
+        }
+        return asLiveObject(entity).delete();
     }
 
     @Override

redisson/src/main/java/org/redisson/api/BatchOptions.java

@@ -122,7 +122,7 @@ public class BatchOptions {
     }
     
     /**
-     * Atomically executes all batched commands as a single command.
+     * Switches batch to atomic mode. Redis atomically executes all commands of this batch as a single command.
      * <p>
      * Please note, that in cluster mode all objects should be on the same cluster slot.
      * https://github.com/antirez/redis/issues/3682 
@@ -138,7 +138,7 @@ public class BatchOptions {
     }
     
     /**
-     * Inform Redis not to send reply. It may save network traffic.
+     * Inform Redis not to send reply. This allows to save network traffic for commands with batch with big response.
      * <p>
      * NOTE: Redis 3.2+ required
      * 

redisson/src/main/java/org/redisson/api/RLiveObjectService.java

@@ -120,8 +120,10 @@ public interface RLiveObjectService {
      * @param <K> Key type
      * @param entityClass - object class
      * @param id - object id
+     * 
+     * @return <code>true</code> if entity was deleted successfully, <code>false</code> otherwise 
      */
-    <T, K> void delete(Class<T> entityClass, K id);
+    <T, K> boolean delete(Class<T> entityClass, K id);
     
     /**
      * To cast the instance to RLiveObject instance.

redisson/src/main/java/org/redisson/connection/MasterSlaveConnectionManager.java

@@ -142,8 +142,6 @@ public class MasterSlaveConnectionManager implements ConnectionManager {
 
     private final ConnectionEventsHub connectionEventsHub = new ConnectionEventsHub();
     
-    private final AsyncSemaphore[] locks = new AsyncSemaphore[50];
-    
     private final ExecutorService executor; 
     
     private final CommandSyncService commandExecutor;
@@ -156,12 +154,6 @@ public class MasterSlaveConnectionManager implements ConnectionManager {
     
     private final Map<Object, RedisConnection> nodeConnections = PlatformDependent.newConcurrentHashMap();
     
-    {
-        for (int i = 0; i < locks.length; i++) {
-            locks[i] = new AsyncSemaphore(1);
-        }
-    }
-
     public MasterSlaveConnectionManager(MasterSlaveServersConfig cfg, Config config, UUID id) {
         this(config, id);
         this.config = cfg;
@@ -219,6 +211,19 @@ public class MasterSlaveConnectionManager implements ConnectionManager {
         this.commandExecutor = new CommandSyncService(this);
     }
     
+    /*
+     * Remove it once https://github.com/netty/netty/issues/7882 get resolved
+     */
+    protected DnsAddressResolverGroup createResolverGroup() {
+        if (cfg.getTransportMode() == TransportMode.EPOLL) {
+            return cfg.getAddressResolverGroupFactory().create(EpollDatagramChannel.class, DnsServerAddressStreamProviders.platformDefault());
+        } else if (cfg.getTransportMode() == TransportMode.KQUEUE) {
+            return cfg.getAddressResolverGroupFactory().create(KQueueDatagramChannel.class, DnsServerAddressStreamProviders.platformDefault());
+        }
+        
+        return cfg.getAddressResolverGroupFactory().create(NioDatagramChannel.class, DnsServerAddressStreamProviders.platformDefault());
+    }
+
     protected void closeNodeConnections() {
         List<RFuture<Void>> futures = new ArrayList<RFuture<Void>>();
         for (RedisConnection connection : nodeConnections.values()) {

redisson/src/main/java/org/redisson/connection/MasterSlaveEntry.java

@@ -346,6 +346,10 @@ public class MasterSlaveEntry {
         return addSlave(client, freezed, nodeType);
     }
 
+    public ClientConnectionsEntry getSlaveEntry(RedisClient client) {
+        return slaveBalancer.getEntry(client);
+    }
+    
     public Collection<ClientConnectionsEntry> getSlaveEntries() {
         List<ClientConnectionsEntry> result = new ArrayList<ClientConnectionsEntry>();
         for (ClientConnectionsEntry slaveEntry : slaveBalancer.getEntries()) {
@@ -467,22 +471,6 @@ public class MasterSlaveEntry {
         });
     }
 
-    public boolean isFreezed() {
-        return masterEntry.isFreezed();
-    }
-
-    public FreezeReason getFreezeReason() {
-        return masterEntry.getFreezeReason();
-    }
-
-    public void unfreeze() {
-        masterEntry.resetFirstFail();
-        synchronized (masterEntry) {
-            masterEntry.setFreezed(false);
-            masterEntry.setFreezeReason(null);
-        }
-    }
-
     public void shutdownMasterAsync() {
         if (!active.compareAndSet(true, false)) {
             return;

redisson/src/main/java/org/redisson/connection/balancer/LoadBalancerManager.java

@@ -222,8 +222,7 @@ public class LoadBalancerManager {
         return null;
     }
 
-    
+    public ClientConnectionsEntry getEntry(RedisClient redisClient) {
-    protected ClientConnectionsEntry getEntry(RedisClient redisClient) {
         return client2Entry.get(redisClient);
     }
 

redisson/src/test/java/org/redisson/RedissonLiveObjectServiceTest.java

@@ -1401,6 +1401,11 @@ public class RedissonLiveObjectServiceTest extends BaseTest {
         assertThat(redisson.getKeys().count()).isEqualTo(1);
     }
 
+    @Test
+    public void testDeleteNotExisted() {
+        RLiveObjectService service = redisson.getLiveObjectService();
+        assertThat(service.delete(Customer.class, "id")).isFalse();
+    }
     
     @Test
     public void testDelete() {