Add License header, use splitterator and fill typed driver options

Author: alexsa

core/src/main/java/com/datastax/oss/driver/api/core/config/TypedDriverOption.java

@@ -896,6 +896,20 @@ public String toString() {
               DefaultDriverOption.LOAD_BALANCING_DC_FAILOVER_ALLOW_FOR_LOCAL_CONSISTENCY_LEVELS,
               GenericType.BOOLEAN);
 
+  public static final TypedDriverOption<String> ADDRESS_TRANSLATOR_ADVERTISED_HOSTNAME =
+      new TypedDriverOption<>(
+          DefaultDriverOption.ADDRESS_TRANSLATOR_ADVERTISED_HOSTNAME, GenericType.STRING);
+  public static final TypedDriverOption<Map<String, String>> ADDRESS_TRANSLATOR_SUBNET_ADDRESSES =
+      new TypedDriverOption<>(
+          DefaultDriverOption.ADDRESS_TRANSLATOR_SUBNET_ADDRESSES,
+          GenericType.mapOf(GenericType.STRING, GenericType.STRING));
+  public static final TypedDriverOption<String> ADDRESS_TRANSLATOR_DEFAULT_ADDRESS =
+      new TypedDriverOption<>(
+          DefaultDriverOption.ADDRESS_TRANSLATOR_DEFAULT_ADDRESS, GenericType.STRING);
+  public static final TypedDriverOption<Boolean> ADDRESS_TRANSLATOR_RESOLVE_ADDRESSES =
+      new TypedDriverOption<>(
+          DefaultDriverOption.ADDRESS_TRANSLATOR_RESOLVE_ADDRESSES, GenericType.BOOLEAN);
+
   /**
    * Ordered preference list of remote dcs optionally supplied for automatic failover and included
    * in query plan. This feature is enabled only when max-nodes-per-remote-dc is greater than 0.

core/src/main/java/com/datastax/oss/driver/internal/core/addresstranslation/Subnet.java

@@ -1,9 +1,28 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package com.datastax.oss.driver.internal.core.addresstranslation;
 
 import com.datastax.oss.driver.shaded.guava.common.annotations.VisibleForTesting;
+import com.google.common.base.Splitter;
 import java.net.InetAddress;
 import java.net.UnknownHostException;
 import java.util.Arrays;
+import java.util.List;
 
 class Subnet {
   private final byte[] subnet;
@@ -26,17 +45,17 @@ private Subnet(byte[] subnet, byte[] networkMask) {
   }
 
   static Subnet parse(String subnetCIDR) throws UnknownHostException {
-    String[] parts = subnetCIDR.split("/");
-    if (parts.length != 2) {
+    List<String> parts = Splitter.on("/").splitToList("/");
+    if (parts.size() != 2) {
       throw new IllegalArgumentException("Invalid subnet: " + subnetCIDR);
     }
 
-    boolean isIPv6 = parts[0].contains(":");
-    byte[] subnet = InetAddress.getByName(parts[0]).getAddress();
+    boolean isIPv6 = parts.get(0).contains(":");
+    byte[] subnet = InetAddress.getByName(parts.get(0)).getAddress();
     if (isIPv4(subnet) && isIPv6) {
       subnet = toIPv6(subnet);
     }
-    int prefixLength = Integer.parseInt(parts[1]);
+    int prefixLength = Integer.parseInt(parts.get(1));
     validatePrefixLength(subnet, prefixLength);
 
     byte[] networkMask = toNetworkMask(subnet, prefixLength);

core/src/main/java/com/datastax/oss/driver/internal/core/addresstranslation/SubnetAddress.java

@@ -1,3 +1,20 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package com.datastax.oss.driver.internal.core.addresstranslation;
 
 import java.net.InetSocketAddress;

core/src/test/java/com/datastax/oss/driver/internal/core/addresstranslation/SubnetAddressTest.java

@@ -1,3 +1,20 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package com.datastax.oss.driver.internal.core.addresstranslation;
 
 import static org.assertj.core.api.Assertions.assertThat;

core/src/test/java/com/datastax/oss/driver/internal/core/addresstranslation/SubnetTest.java

@@ -1,3 +1,20 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package com.datastax.oss.driver.internal.core.addresstranslation;
 
 import static org.assertj.core.api.Assertions.assertThat;