add license headers

Signed-off-by: HenryL27 <[email protected]>

client/src/main/java/org/opensearch/ml/client/MemoryClient.java

@@ -1,3 +1,20 @@
+/*
+ * Copyright 2023 Aryn
+ * Copyright OpenSearch Contributors
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Licensed 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 org.opensearch.ml.client;
 
 import org.opensearch.common.action.ActionFuture;

client/src/main/java/org/opensearch/ml/client/MemoryNodeClient.java

@@ -1,3 +1,20 @@
+/*
+ * Copyright 2023 Aryn
+ * Copyright OpenSearch Contributors
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Licensed 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 org.opensearch.ml.client;
 
 import org.opensearch.action.support.PlainActionFuture;
@@ -21,7 +38,6 @@
 import org.opensearch.ml.memory.action.conversation.GetInteractionsResponse;
 
 import lombok.AllArgsConstructor;
-import lombok.RequiredArgsConstructor;
 
 @AllArgsConstructor
 public class MemoryNodeClient implements MemoryClient {

client/src/test/java/org/opensearch/ml/client/MemoryNodeClientTest.java

@@ -1,3 +1,20 @@
+/*
+ * Copyright 2023 Aryn
+ * Copyright OpenSearch Contributors
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Licensed 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 org.opensearch.ml.client;
 
 import static org.junit.Assert.assertEquals;