Change dimensional time slice crawler and worker metrics to camel case

Convert WorkerPartitionWaitTime and WorkerPartitionProcessLatency metrics
to camelCase format (workerPartitionWaitTime and workerPartitionProcessLatency)
in TokenPaginationCrawler and DimensionalTimeSliceCrawler for consistency
with LeaderOnlyTokenCrawler metrics.

Signed-off-by: Nathan Wand <wandna@amazon.com>

Author: wandna-amazon

data-prepper-plugins/saas-source-plugins/source-crawler/src/main/java/org/opensearch/dataprepper/plugins/source/source_crawler/base/DimensionalTimeSliceCrawler.java

@@ -40,8 +40,8 @@ public class DimensionalTimeSliceCrawler implements Crawler<DimensionalTimeSlice
     // In general, newly generated events become queryable after 30 ~ 120 second
     protected static final long WAIT_SECONDS_BEFORE_PARTITION_CREATION = 300;
     private static final String DIMENSIONAL_TIME_SLICE_WORKER_PARTITIONS_CREATED = "DimensionalTimeSliceWorkerPartitionsCreated";
-    private static final String WORKER_PARTITION_WAIT_TIME = "WorkerPartitionWaitTime";
-    private static final String WORKER_PARTITION_PROCESS_LATENCY = "WorkerPartitionProcessLatency";
+    private static final String WORKER_PARTITION_WAIT_TIME = "workerPartitionWaitTime";
+    private static final String WORKER_PARTITION_PROCESS_LATENCY = "workerPartitionProcessLatency";
     private static final Duration HOUR_DURATION = Duration.ofHours(1);
 
     private final CrawlerClient client;

data-prepper-plugins/saas-source-plugins/source-crawler/src/main/java/org/opensearch/dataprepper/plugins/source/source_crawler/base/LeaderOnlyTokenCrawler.java

@@ -39,8 +39,8 @@ public class LeaderOnlyTokenCrawler implements Crawler<PaginationCrawlerWorkerPr
 
     private static final String METRIC_BATCHES_FAILED = "batchesFailed";
     private static final String METRIC_BUFFER_WRITE_TIME = "bufferWriteTime";
-    private static final String WORKER_PARTITION_WAIT_TIME = "WorkerPartitionWaitTime";
-    private static final String WORKER_PARTITION_PROCESS_LATENCY = "WorkerPartitionProcessLatency";
+    private static final String WORKER_PARTITION_WAIT_TIME = "workerPartitionWaitTime";
+    private static final String WORKER_PARTITION_PROCESS_LATENCY = "workerPartitionProcessLatency";
     public static final String ACKNOWLEDGEMENT_SET_SUCCESS_METRIC_NAME = "acknowledgementSetSuccesses";
     public static final String ACKNOWLEDGEMENT_SET_FAILURES_METRIC_NAME = "acknowledgementSetFailures";
 

data-prepper-plugins/saas-source-plugins/source-crawler/src/main/java/org/opensearch/dataprepper/plugins/source/source_crawler/base/TokenPaginationCrawler.java

@@ -33,8 +33,8 @@ public class TokenPaginationCrawler implements Crawler<PaginationCrawlerWorkerPr
     private static final int batchSize = 50;
     private static final String PAGINATION_WORKER_PARTITIONS_CREATED = "paginationWorkerPartitionsCreated";
     private static final String INVALID_PAGINATION_ITEMS = "invalidPaginationItems";
-    private static final String WORKER_PARTITION_WAIT_TIME = "WorkerPartitionWaitTime";
-    private static final String WORKER_PARTITION_PROCESS_LATENCY = "WorkerPartitionProcessLatency";
+    private static final String WORKER_PARTITION_WAIT_TIME = "workerPartitionWaitTime";
+    private static final String WORKER_PARTITION_PROCESS_LATENCY = "workerPartitionProcessLatency";
     private final Timer crawlingTimer;
     private final Timer partitionWaitTimeTimer;
     private final Timer partitionProcessLatencyTimer;