tidy up logging

Author: Theo van Kraay

src/main/java/com/azure/cosmos/examples/containercrud/async/ContainerCRUDQuickstartAsync.java

@@ -141,9 +141,7 @@ private void readAllContainers() throws Exception {
         // Print
         String msg="Listing containers in database:\n";
         containers.byPage(100).flatMap(readAllContainersResponse -> {
-            logger.info("read " +
-            readAllContainersResponse.getResults().size() + " containers(s)"
-            + " with request charge of " + readAllContainersResponse.getRequestCharge());
+            logger.info("read {} containers(s) with request charge of {}", readAllContainersResponse.getResults().size(),readAllContainersResponse.getRequestCharge());
 
             for (CosmosContainerProperties response : readAllContainersResponse.getResults()) {
                 logger.info("container id: {}", response.getId());
@@ -207,7 +205,7 @@ private void createContainerIfNotExistsLWWDefaultTimestamp() throws Exception {
     // Multi-master only: Container create: last-writer-wins conflict resolution
     // Favor the newest write, using one of the document fields as a custom timestamp
     private void createContainerIfNotExistsLWWCustomTimestamp() throws Exception {
-        logger.info("Create container " + containerName + " if not exists.");
+        logger.info("Create container {} if not exists.", containerName);
 
         //  Create container properties structure
         CosmosContainerProperties containerProperties =

src/main/java/com/azure/cosmos/examples/databasecrud/async/DatabaseCRUDQuickstartAsync.java

@@ -59,7 +59,7 @@ public static void main(String[] args) {
 
     private void databaseCRUDDemo() throws Exception {
 
-        logger.info("Using Azure Cosmos DB endpoint: " + AccountSettings.HOST);
+        logger.info("Using Azure Cosmos DB endpoint: {}", AccountSettings.HOST);
 
         //  Create async client
         client = new CosmosClientBuilder()
@@ -112,7 +112,7 @@ private void readAllDatabases() throws Exception {
             logger.info("read {} database(s) with request charge of {}", readAllDatabasesResponse.getResults().size(),readAllDatabasesResponse.getRequestCharge());
 
             for (CosmosDatabaseProperties response : readAllDatabasesResponse.getResults()) {
-                logger.info("database id: "+response.getId());
+                logger.info("database id: {}", response.getId());
                 //Got a page of query result with
             }
             return Flux.empty();