Fix the casing in the names of some CCR classes

We should be consistent here. We were already using the casing "Ccr" and
this is the preferred casing for Java class names. This commit adjusts
the names of some classes that were using the casing "CCR" to be "Ccr".

x-pack/plugin/ccr/src/test/java/org/elasticsearch/xpack/CCRIntegTestCase.java → x-pack/plugin/ccr/src/test/java/org/elasticsearch/xpack/CcrIntegTestCase.java

@@ -67,7 +67,7 @@ import static org.elasticsearch.test.hamcrest.ElasticsearchAssertions.assertAcke
 import static org.elasticsearch.test.hamcrest.ElasticsearchAssertions.assertNoFailures;
 import static org.hamcrest.Matchers.lessThanOrEqualTo;
 
-public abstract class CCRIntegTestCase extends ESTestCase {
+public abstract class CcrIntegTestCase extends ESTestCase {
 
     private static ClusterGroup clusterGroup;
 

x-pack/plugin/ccr/src/test/java/org/elasticsearch/xpack/CCRSingleNodeTestCase.java → x-pack/plugin/ccr/src/test/java/org/elasticsearch/xpack/CcrSingleNodeTestCase.java

@@ -24,9 +24,9 @@ import java.util.Collection;
 import java.util.Collections;
 
 import static org.elasticsearch.test.hamcrest.ElasticsearchAssertions.assertAcked;
-import static org.elasticsearch.xpack.CCRIntegTestCase.removeCCRRelatedMetadataFromClusterState;
+import static org.elasticsearch.xpack.CcrIntegTestCase.removeCCRRelatedMetadataFromClusterState;
 
-public abstract class CCRSingleNodeTestCase extends ESSingleNodeTestCase {
+public abstract class CcrSingleNodeTestCase extends ESSingleNodeTestCase {
 
     @Override
     protected Settings nodeSettings() {

x-pack/plugin/ccr/src/test/java/org/elasticsearch/xpack/ccr/AutoFollowIT.java

@@ -15,7 +15,7 @@ import org.elasticsearch.common.unit.ByteSizeValue;
 import org.elasticsearch.common.unit.TimeValue;
 import org.elasticsearch.index.IndexSettings;
 import org.elasticsearch.persistent.PersistentTasksCustomMetaData;
-import org.elasticsearch.xpack.CCRIntegTestCase;
+import org.elasticsearch.xpack.CcrIntegTestCase;
 import org.elasticsearch.xpack.ccr.action.ShardFollowTask;
 import org.elasticsearch.xpack.core.ccr.AutoFollowStats;
 import org.elasticsearch.xpack.core.ccr.action.AutoFollowStatsAction;
@@ -28,7 +28,7 @@ import java.util.Collections;
 import static org.hamcrest.Matchers.equalTo;
 import static org.hamcrest.Matchers.notNullValue;
 
-public class AutoFollowIT extends CCRIntegTestCase {
+public class AutoFollowIT extends CcrIntegTestCase {
 
     @Override
     protected boolean reuseClusters() {

x-pack/plugin/ccr/src/test/java/org/elasticsearch/xpack/ccr/CcrLicenseIT.java

@@ -20,7 +20,7 @@ import org.elasticsearch.common.logging.Loggers;
 import org.elasticsearch.common.settings.Settings;
 import org.elasticsearch.plugins.Plugin;
 import org.elasticsearch.test.MockLogAppender;
-import org.elasticsearch.xpack.CCRSingleNodeTestCase;
+import org.elasticsearch.xpack.CcrSingleNodeTestCase;
 import org.elasticsearch.xpack.ccr.action.AutoFollowCoordinator;
 import org.elasticsearch.xpack.core.ccr.AutoFollowMetadata;
 import org.elasticsearch.xpack.core.ccr.AutoFollowMetadata.AutoFollowPattern;
@@ -36,7 +36,7 @@ import java.util.concurrent.CountDownLatch;
 import static org.hamcrest.Matchers.equalTo;
 import static org.hamcrest.Matchers.instanceOf;
 
-public class CcrLicenseIT extends CCRSingleNodeTestCase {
+public class CcrLicenseIT extends CcrSingleNodeTestCase {
 
     @Override
     protected Collection<Class<? extends Plugin>> getPlugins() {

x-pack/plugin/ccr/src/test/java/org/elasticsearch/xpack/ccr/IndexFollowingIT.java

@@ -52,7 +52,7 @@ import org.elasticsearch.persistent.PersistentTasksCustomMetaData;
 import org.elasticsearch.search.builder.SearchSourceBuilder;
 import org.elasticsearch.tasks.TaskInfo;
 import org.elasticsearch.test.InternalTestCluster;
-import org.elasticsearch.xpack.CCRIntegTestCase;
+import org.elasticsearch.xpack.CcrIntegTestCase;
 import org.elasticsearch.xpack.ccr.action.ShardFollowTask;
 import org.elasticsearch.xpack.ccr.index.engine.FollowingEngine;
 import org.elasticsearch.xpack.core.ccr.ShardFollowNodeTaskStatus;
@@ -91,7 +91,7 @@ import static org.hamcrest.Matchers.is;
 import static org.hamcrest.Matchers.notNullValue;
 import static org.hamcrest.Matchers.nullValue;
 
-public class IndexFollowingIT extends CCRIntegTestCase {
+public class IndexFollowingIT extends CcrIntegTestCase {
 
     public void testFollowIndex() throws Exception {
         final int numberOfPrimaryShards = randomIntBetween(1, 3);

x-pack/plugin/ccr/src/test/java/org/elasticsearch/xpack/ccr/LocalIndexFollowingIT.java

@@ -10,7 +10,7 @@ import org.elasticsearch.common.bytes.BytesReference;
 import org.elasticsearch.common.xcontent.XContentBuilder;
 import org.elasticsearch.common.xcontent.XContentType;
 import org.elasticsearch.index.IndexSettings;
-import org.elasticsearch.xpack.CCRSingleNodeTestCase;
+import org.elasticsearch.xpack.CcrSingleNodeTestCase;
 import org.elasticsearch.xpack.core.ccr.action.PauseFollowAction;
 import org.elasticsearch.xpack.core.ccr.action.PutFollowAction;
 import org.elasticsearch.xpack.core.ccr.action.ResumeFollowAction;
@@ -23,7 +23,7 @@ import static org.elasticsearch.common.xcontent.XContentFactory.jsonBuilder;
 import static org.elasticsearch.test.hamcrest.ElasticsearchAssertions.assertAcked;
 import static org.hamcrest.Matchers.equalTo;
 
-public class LocalIndexFollowingIT extends CCRSingleNodeTestCase {
+public class LocalIndexFollowingIT extends CcrSingleNodeTestCase {
 
     public void testFollowIndex() throws Exception {
         final String leaderIndexSettings = getIndexSettings(2, 0,

x-pack/plugin/ccr/src/test/java/org/elasticsearch/xpack/ccr/action/ShardFollowTaskReplicationTests.java

@@ -311,7 +311,7 @@ public class ShardFollowTaskReplicationTests extends ESIndexLevelReplicationTest
                 operations.removeAll(bulkOps);
                 BulkShardOperationsRequest bulkRequest = new BulkShardOperationsRequest(group.getPrimary().shardId(),
                     group.getPrimary().getHistoryUUID(), bulkOps, -1);
-                new CCRAction(bulkRequest, new PlainActionFuture<>(), group).execute();
+                new CcrAction(bulkRequest, new PlainActionFuture<>(), group).execute();
                 if (randomInt(100) < 10) {
                     group.getPrimary().flush(new FlushRequest());
                 }
@@ -409,7 +409,7 @@ public class ShardFollowTaskReplicationTests extends ESIndexLevelReplicationTest
                     BulkShardOperationsRequest request = new BulkShardOperationsRequest(params.getFollowShardId(),
                         followerHistoryUUID, operations, maxSeqNoOfUpdates);
                     ActionListener<BulkShardOperationsResponse> listener = ActionListener.wrap(handler::accept, errorHandler);
-                    new CCRAction(request, listener, followerGroup).execute();
+                    new CcrAction(request, listener, followerGroup).execute();
                 };
                 threadPool.executor(ThreadPool.Names.GENERIC).execute(task);
             }
@@ -493,9 +493,9 @@ public class ShardFollowTaskReplicationTests extends ESIndexLevelReplicationTest
         }
     }
 
-    class CCRAction extends ReplicationAction<BulkShardOperationsRequest, BulkShardOperationsRequest, BulkShardOperationsResponse> {
+    class CcrAction extends ReplicationAction<BulkShardOperationsRequest, BulkShardOperationsRequest, BulkShardOperationsResponse> {
 
-        CCRAction(BulkShardOperationsRequest request, ActionListener<BulkShardOperationsResponse> listener, ReplicationGroup group) {
+        CcrAction(BulkShardOperationsRequest request, ActionListener<BulkShardOperationsResponse> listener, ReplicationGroup group) {
             super(request, listener, group, "ccr");
         }