chore: format CloudSqlInstance.java (#1148)

Author: shubha-rajan

core/src/main/java/com/google/cloud/sql/core/CloudSqlInstance.java

@@ -112,20 +112,18 @@ class CloudSqlInstance {
   private final String regionalizedInstanceId;
   private final ListenableFuture<KeyPair> keyPair;
   private final Object instanceDataGuard = new Object();
-
+  // Limit forced refreshes to 1 every minute.
+  private final RateLimiter forcedRenewRateLimiter = RateLimiter.create(1.0 / 60.0);
   @GuardedBy("instanceDataGuard")
   private ListenableFuture<InstanceData> currentInstanceData;
-
   @GuardedBy("instanceDataGuard")
   private ListenableFuture<ListenableFuture<InstanceData>> nextInstanceData;
 
-  // Limit forced refreshes to 1 every minute.
-  private final RateLimiter forcedRenewRateLimiter = RateLimiter.create(1.0 / 60.0);
-
   /**
    * Initializes a new Cloud SQL instance based on the given connection name.
    *
-   * @param connectionName instance connection name in the format "PROJECT_ID:REGION_ID:INSTANCE_ID"
+   * @param connectionName instance connection name in the format
+   *     "PROJECT_ID:REGION_ID:INSTANCE_ID"
    * @param apiClient Cloud SQL Admin API client for interacting with the Cloud SQL instance
    * @param executor executor used to schedule asynchronous tasks
    * @param keyPair public/private key pair used to authenticate connections
@@ -172,37 +170,6 @@ class CloudSqlInstance {
     }
   }
 
-  private OAuth2Credentials parseCredentials(HttpRequestInitializer source) {
-    if (source instanceof HttpCredentialsAdapter) {
-      HttpCredentialsAdapter adapter = (HttpCredentialsAdapter) source;
-      return (OAuth2Credentials) adapter.getCredentials();
-    }
-
-    if (source instanceof Credential) {
-      Credential credential = (Credential) source;
-      AccessToken accessToken = new AccessToken(
-          credential.getAccessToken(),
-          getTokenExpirationTime(credential).orElse(null)
-      );
-      GoogleCredentials googleCredentials = new GoogleCredentials(accessToken) {
-
-        @Override
-        public AccessToken refreshAccessToken() throws IOException {
-          credential.refreshToken();
-
-          return new AccessToken(
-              credential.getAccessToken(),
-              getTokenExpirationTime(credential).orElse(null)
-          );
-        }
-      };
-
-      return googleCredentials;
-    }
-
-    throw new RuntimeException("Not supporting credentials of type " + source.getClass().getName());
-  }
-
   /**
    * Generates public key certificate for which the instance has the matching private key.
    *
@@ -282,6 +249,60 @@ private static Certificate createCertificate(String cert) throws CertificateExce
     return CertificateFactory.getInstance("X.509").generateCertificate(certStream);
   }
 
+  static void checkDatabaseCompatibility(ConnectSettings instanceMetadata, boolean iamAuth,
+      String connectionName) {
+    if (iamAuth && instanceMetadata.getDatabaseVersion().contains("SQLSERVER")) {
+      throw new IllegalArgumentException(
+          String.format(
+              "[%s] IAM Authentication is not supported for SQL Server instances.",
+              connectionName));
+    }
+  }
+
+  static GoogleCredentials getDownscopedCredentials(OAuth2Credentials credentials) {
+    GoogleCredentials downscoped;
+    try {
+      GoogleCredentials oldCredentials = (GoogleCredentials) credentials;
+      downscoped = oldCredentials.createScoped(SQL_LOGIN_SCOPE);
+    } catch (ClassCastException ex) {
+      throw new RuntimeException(
+          "Failed to downscope credentials for IAM Authentication:",
+          ex);
+    }
+    return downscoped;
+  }
+
+  private OAuth2Credentials parseCredentials(HttpRequestInitializer source) {
+    if (source instanceof HttpCredentialsAdapter) {
+      HttpCredentialsAdapter adapter = (HttpCredentialsAdapter) source;
+      return (OAuth2Credentials) adapter.getCredentials();
+    }
+
+    if (source instanceof Credential) {
+      Credential credential = (Credential) source;
+      AccessToken accessToken = new AccessToken(
+          credential.getAccessToken(),
+          getTokenExpirationTime(credential).orElse(null)
+      );
+      GoogleCredentials googleCredentials = new GoogleCredentials(accessToken) {
+
+        @Override
+        public AccessToken refreshAccessToken() throws IOException {
+          credential.refreshToken();
+
+          return new AccessToken(
+              credential.getAccessToken(),
+              getTokenExpirationTime(credential).orElse(null)
+          );
+        }
+      };
+
+      return googleCredentials;
+    }
+
+    throw new RuntimeException("Not supporting credentials of type " + source.getClass().getName());
+  }
+
   /**
    * Returns the current data related to the instance from {@link #performRefresh()}. May block if
    * no valid data is currently available.
@@ -492,16 +513,6 @@ private SslData createSslData(
     }
   }
 
-  static void checkDatabaseCompatibility(ConnectSettings instanceMetadata, boolean iamAuth,
-      String connectionName) {
-    if (iamAuth && instanceMetadata.getDatabaseVersion().contains("SQLSERVER")) {
-      throw new IllegalArgumentException(
-          String.format(
-              "[%s] IAM Authentication is not supported for SQL Server instances.",
-              connectionName));
-    }
-  }
-
   /**
    * Fetches the latest version of the instance's metadata using the Cloud SQL Admin API.
    */
@@ -528,7 +539,6 @@ private Metadata fetchMetadata() {
 
       checkDatabaseCompatibility(instanceMetadata, enableIamAuth, connectionName);
 
-
       // Verify the instance has at least one IP type assigned that can be used to connect.
       if (instanceMetadata.getIpAddresses().isEmpty()) {
         throw new IllegalStateException(
@@ -613,19 +623,6 @@ private Certificate fetchEphemeralCertificate(KeyPair keyPair) {
     return ephemeralCertificate;
   }
 
-  static GoogleCredentials getDownscopedCredentials(OAuth2Credentials credentials) {
-    GoogleCredentials downscoped;
-    try {
-      GoogleCredentials oldCredentials = (GoogleCredentials) credentials;
-      downscoped = oldCredentials.createScoped(SQL_LOGIN_SCOPE);
-    } catch (ClassCastException ex) {
-      throw new RuntimeException(
-          "Failed to downscope credentials for IAM Authentication:",
-          ex);
-    }
-    return downscoped;
-  }
-
   private Optional<Date> getTokenExpirationTime(OAuth2Credentials credentials) {
     return Optional.ofNullable(credentials.getAccessToken().getExpirationTime());
   }