ARTEMIS-1964 fix and deprecate getNumberOfMessages() on AddressControl

AddressControl has 2 methods to get same metric. Both
getNumberOfMessages() and getMessageCount() return the same metric
albeit in different ways.

Also, getNumberOfMessages() inspects both "local" and "remote" queue
bindings which is wrong.

This commit fixes these issues via the following changes:

 - Deprecate getNumberOfMessages().
 - Change getNumberOfMessages() to invoke getMessageCount().
 - Add a test to ensure getNumberOfMessages() does not count remote
queue bindings.
 - Simplify getMessageCount(DurabilityType).

artemis-core-client/src/main/java/org/apache/activemq/artemis/api/core/management/AddressControl.java

@@ -73,26 +73,27 @@ public interface AddressControl {
    /**
     * Returns the sum of messages on queue(s), including messages in delivery.
     */
-   @Attribute(desc = "the sum of messages on queue(s), including messages in delivery")
-   long getNumberOfMessages() throws Exception;
+   @Deprecated
+   @Attribute(desc = "the sum of messages on queue(s), including messages in delivery; DEPRECATED: use getMessageCount() instead")
+   long getNumberOfMessages();
 
    /**
     * Returns the names of the remote queue(s) bound to this address.
     */
    @Attribute(desc = "names of the remote queue(s) bound to this address")
-   String[] getRemoteQueueNames() throws Exception;
+   String[] getRemoteQueueNames();
 
    /**
     * Returns the names of the local queue(s) bound to this address.
     */
    @Attribute(desc = "names of the local queue(s) bound to this address")
-   String[] getQueueNames() throws Exception;
+   String[] getQueueNames();
 
    /**
     * Returns the names of both the local and remote queue(s) bound to this address.
     */
    @Attribute(desc = "names of both the local & remote queue(s) bound to this address")
-   String[] getAllQueueNames() throws Exception;
+   String[] getAllQueueNames();
 
    /**
     * Returns the number of pages used by this address.

artemis-server/src/main/java/org/apache/activemq/artemis/core/management/impl/AddressControlImpl.java

@@ -16,12 +16,10 @@
  */
 package org.apache.activemq.artemis.core.management.impl;
 
-import org.apache.activemq.artemis.json.JsonArrayBuilder;
 import javax.management.MBeanAttributeInfo;
 import javax.management.MBeanOperationInfo;
 import java.text.SimpleDateFormat;
 import java.util.ArrayList;
-import java.util.Collections;
 import java.util.Date;
 import java.util.EnumSet;
 import java.util.List;
@@ -30,7 +28,6 @@ import java.util.Set;
 
 import org.apache.activemq.artemis.api.core.RoutingType;
 import org.apache.activemq.artemis.api.core.management.AddressControl;
-import org.apache.activemq.artemis.api.core.management.QueueControl;
 import org.apache.activemq.artemis.api.core.management.ResourceNames;
 import org.apache.activemq.artemis.core.paging.PagingManager;
 import org.apache.activemq.artemis.core.paging.PagingStore;
@@ -45,6 +42,7 @@ import org.apache.activemq.artemis.core.security.Role;
 import org.apache.activemq.artemis.core.security.SecurityStore;
 import org.apache.activemq.artemis.core.server.ActiveMQServer;
 import org.apache.activemq.artemis.core.server.ActiveMQServerLogger;
+import org.apache.activemq.artemis.core.server.Queue;
 import org.apache.activemq.artemis.core.server.cluster.RemoteQueueBinding;
 import org.apache.activemq.artemis.core.server.impl.AckReason;
 import org.apache.activemq.artemis.core.server.impl.AddressInfo;
@@ -52,6 +50,7 @@ import org.apache.activemq.artemis.core.server.impl.QueueImpl;
 import org.apache.activemq.artemis.core.server.management.ManagementService;
 import org.apache.activemq.artemis.core.server.replay.ReplayManager;
 import org.apache.activemq.artemis.core.settings.HierarchicalRepository;
+import org.apache.activemq.artemis.json.JsonArrayBuilder;
 import org.apache.activemq.artemis.logs.AuditLogger;
 import org.apache.activemq.artemis.utils.JsonLoader;
 
@@ -130,17 +129,17 @@ public class AddressControlImpl extends AbstractControl implements AddressContro
    }
 
    @Override
-   public String[] getRemoteQueueNames() throws Exception {
+   public String[] getRemoteQueueNames() {
       return getQueueNames(SearchType.REMOTE);
    }
 
    @Override
-   public String[] getQueueNames() throws Exception {
+   public String[] getQueueNames() {
       return getQueueNames(SearchType.LOCAL);
    }
 
    @Override
-   public String[] getAllQueueNames() throws Exception {
+   public String[] getAllQueueNames() {
       return getQueueNames(SearchType.ALL);
    }
 
@@ -148,7 +147,7 @@ public class AddressControlImpl extends AbstractControl implements AddressContro
       LOCAL, REMOTE, ALL
    }
 
-   private String[] getQueueNames(SearchType searchType) throws Exception {
+   private String[] getQueueNames(SearchType searchType) {
       if (AuditLogger.isBaseLoggingEnabled()) {
          AuditLogger.getQueueNames(this.addressInfo, searchType);
       }
@@ -301,22 +300,14 @@ public class AddressControlImpl extends AbstractControl implements AddressContro
    }
 
    @Override
-   public long getNumberOfMessages() throws Exception {
+   @Deprecated
+   public long getNumberOfMessages() {
       if (AuditLogger.isBaseLoggingEnabled()) {
          AuditLogger.getNumberOfMessages(this.addressInfo);
       }
       clearIO();
-      long totalMsgs = 0;
       try {
-         Bindings bindings = server.getPostOffice().lookupBindingsForAddress(addressInfo.getName());
-         if (bindings != null) {
-            for (Binding binding : bindings.getBindings()) {
-               if (binding instanceof QueueBinding) {
-                  totalMsgs += ((QueueBinding) binding).getQueue().getMessageCount();
-               }
-            }
-         }
-         return totalMsgs;
+         return getMessageCount();
       } catch (Throwable t) {
          throw new IllegalStateException(t.getMessage());
       } finally {
@@ -668,42 +659,25 @@ public class AddressControlImpl extends AbstractControl implements AddressContro
 
 
    private long getMessageCount(final DurabilityType durability) {
-      List<QueueControl> queues = getQueues(durability);
       long count = 0;
-      for (QueueControl queue : queues) {
-         count += queue.getMessageCount();
+      for (String queueName : getQueueNames()) {
+         Queue queue = server.locateQueue(queueName);
+         if (queue != null &&
+            (durability == DurabilityType.ALL ||
+            (durability == DurabilityType.DURABLE && queue.isDurable()) ||
+            (durability == DurabilityType.NON_DURABLE && !queue.isDurable()))) {
+            count += queue.getMessageCount();
+         }
       }
       return count;
    }
 
-   private List<QueueControl> getQueues(final DurabilityType durability) {
-      try {
-         List<QueueControl> matchingQueues = new ArrayList<>();
-         String[] queues = getQueueNames();
-         for (String queue : queues) {
-            QueueControl coreQueueControl = (QueueControl) managementService.getResource(ResourceNames.QUEUE + queue);
-
-            // Ignore the "special" subscription
-            if (coreQueueControl != null) {
-               if (durability == DurabilityType.ALL || durability == DurabilityType.DURABLE && coreQueueControl.isDurable() ||
-                     durability == DurabilityType.NON_DURABLE && !coreQueueControl.isDurable()) {
-                  matchingQueues.add(coreQueueControl);
-               }
-            }
-         }
-         return matchingQueues;
-      } catch (Exception e) {
-         return Collections.emptyList();
-      }
-   }
-
    private void checkStarted() {
       if (!server.getPostOffice().isStarted()) {
          throw new IllegalStateException("Broker is not started. Queues can not be managed yet");
       }
    }
 
-
    private enum DurabilityType {
       ALL, DURABLE, NON_DURABLE
    }

tests/integration-tests/pom.xml

@@ -455,6 +455,12 @@
          <scope>test</scope>
       </dependency>
 
+      <dependency>
+         <groupId>org.mockito</groupId>
+         <artifactId>mockito-core</artifactId>
+         <scope>test</scope>
+      </dependency>
+
    </dependencies>
 
    <build>

tests/integration-tests/src/test/java/org/apache/activemq/artemis/tests/integration/management/AddressControlTest.java

@@ -22,14 +22,10 @@ import javax.jms.MessageConsumer;
 import javax.jms.MessageProducer;
 import javax.jms.Session;
 import javax.jms.TextMessage;
-
-import org.apache.activemq.artemis.core.server.Queue;
-import org.apache.activemq.artemis.json.JsonArray;
-import org.apache.activemq.artemis.json.JsonString;
 import java.text.SimpleDateFormat;
 import java.util.Arrays;
-import java.util.EnumSet;
 import java.util.Date;
+import java.util.EnumSet;
 import java.util.HashMap;
 import java.util.HashSet;
 import java.util.Map;
@@ -51,15 +47,19 @@ import org.apache.activemq.artemis.api.core.management.AddressControl;
 import org.apache.activemq.artemis.api.core.management.ResourceNames;
 import org.apache.activemq.artemis.api.core.management.RoleInfo;
 import org.apache.activemq.artemis.core.config.Configuration;
+import org.apache.activemq.artemis.core.postoffice.BindingType;
 import org.apache.activemq.artemis.core.security.CheckType;
 import org.apache.activemq.artemis.core.security.Role;
 import org.apache.activemq.artemis.core.server.ActiveMQServer;
+import org.apache.activemq.artemis.core.server.Queue;
 import org.apache.activemq.artemis.core.server.cluster.RemoteQueueBinding;
 import org.apache.activemq.artemis.core.server.cluster.impl.MessageLoadBalancingType;
 import org.apache.activemq.artemis.core.server.cluster.impl.RemoteQueueBindingImpl;
 import org.apache.activemq.artemis.core.server.impl.AddressInfo;
 import org.apache.activemq.artemis.core.server.impl.QueueImpl;
 import org.apache.activemq.artemis.core.settings.impl.AddressSettings;
+import org.apache.activemq.artemis.json.JsonArray;
+import org.apache.activemq.artemis.json.JsonString;
 import org.apache.activemq.artemis.tests.util.CFUtil;
 import org.apache.activemq.artemis.tests.util.Wait;
 import org.apache.activemq.artemis.utils.Base64;
@@ -67,6 +67,7 @@ import org.apache.activemq.artemis.utils.RandomUtil;
 import org.junit.Assert;
 import org.junit.Before;
 import org.junit.Test;
+import org.mockito.Mockito;
 
 import static org.apache.activemq.artemis.tests.util.RandomUtil.randomString;
 
@@ -451,6 +452,36 @@ public class AddressControlTest extends ManagementTestBase {
       assertTrue(Wait.waitFor(() -> addressControl.getMessageCount() == 2, 2000, 100));
    }
 
+   @Test
+   public void testNumberOfMessages() throws Exception {
+      SimpleString address = RandomUtil.randomSimpleString();
+      session.createAddress(address, RoutingType.ANYCAST, false);
+
+      AddressControl addressControl = createManagementControl(address);
+      assertEquals(0, addressControl.getNumberOfMessages());
+
+      ClientProducer producer = session.createProducer(address.toString());
+      producer.send(session.createMessage(false));
+      assertEquals(0, addressControl.getNumberOfMessages());
+
+      session.createQueue(new QueueConfiguration(address).setRoutingType(RoutingType.ANYCAST));
+      producer.send(session.createMessage(false));
+      Wait.assertTrue(() -> addressControl.getNumberOfMessages() == 1, 2000, 100);
+
+      RemoteQueueBinding binding = Mockito.mock(RemoteQueueBinding.class);
+      Mockito.when(binding.getAddress()).thenReturn(address);
+      Queue queue = Mockito.mock(Queue.class);
+      Mockito.when(queue.getMessageCount()).thenReturn((long) 999);
+      Mockito.when(binding.getQueue()).thenReturn(queue);
+      Mockito.when(binding.getUniqueName()).thenReturn(RandomUtil.randomSimpleString());
+      Mockito.when(binding.getRoutingName()).thenReturn(RandomUtil.randomSimpleString());
+      Mockito.when(binding.getClusterName()).thenReturn(RandomUtil.randomSimpleString());
+      Mockito.when(binding.getType()).thenReturn(BindingType.REMOTE_QUEUE);
+      server.getPostOffice().addBinding(binding);
+
+      assertEquals(1, addressControl.getNumberOfMessages());
+   }
+
    @Test
    public void testGetRoutedMessageCounts() throws Exception {
       SimpleString address = RandomUtil.randomSimpleString();

tests/integration-tests/src/test/java/org/apache/activemq/artemis/tests/integration/management/AddressControlUsingCoreTest.java

@@ -62,22 +62,22 @@ public class AddressControlUsingCoreTest extends AddressControlTest {
          }
 
          @Override
-         public long getNumberOfMessages() throws Exception {
+         public long getNumberOfMessages() {
             return (long) proxy.retrieveAttributeValue("numberOfMessages");
          }
 
          @Override
-         public String[] getRemoteQueueNames() throws Exception {
+         public String[] getRemoteQueueNames() {
             return (String[]) proxy.retrieveAttributeValue("remoteQueueNames", String.class);
          }
 
          @Override
-         public String[] getAllQueueNames() throws Exception {
+         public String[] getAllQueueNames() {
             return (String[]) proxy.retrieveAttributeValue("allQueueNames", String.class);
          }
 
          @Override
-         public String[] getQueueNames() throws Exception {
+         public String[] getQueueNames() {
             return (String[]) proxy.retrieveAttributeValue("queueNames", String.class);
          }