Streamline S3 Repository- and Client-Settings

plugins/repository-s3/src/main/java/org/elasticsearch/repositories/s3/S3BasicCredentials.java

@@ -0,0 +1,62 @@
+/*
+ * Licensed to Elasticsearch under one or more contributor
+ * license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright
+ * ownership. Elasticsearch 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 org.elasticsearch.repositories.s3;
+
+import com.amazonaws.auth.AWSCredentials;
+
+import java.util.Objects;
+
+class S3BasicCredentials implements AWSCredentials {
+
+    private final String accessKey;
+
+    private final String secretKey;
+
+    S3BasicCredentials(String accessKey, String secretKey) {
+        this.accessKey = accessKey;
+        this.secretKey = secretKey;
+    }
+
+    @Override
+    public final String getAWSAccessKeyId() {
+        return accessKey;
+    }
+
+    @Override
+    public final String getAWSSecretKey() {
+        return secretKey;
+    }
+
+    @Override
+    public boolean equals(final Object o) {
+        if (this == o) {
+            return true;
+        }
+        if (o == null || getClass() != o.getClass()) {
+            return false;
+        }
+        final S3BasicCredentials that = (S3BasicCredentials) o;
+        return accessKey.equals(that.accessKey) && secretKey.equals(that.secretKey);
+    }
+
+    @Override
+    public int hashCode() {
+        return Objects.hash(accessKey, secretKey);
+    }
+}

plugins/repository-s3/src/main/java/org/elasticsearch/repositories/s3/S3BasicSessionCredentials.java

@@ -0,0 +1,57 @@
+/*
+ * Licensed to Elasticsearch under one or more contributor
+ * license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright
+ * ownership. Elasticsearch 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 org.elasticsearch.repositories.s3;
+
+import com.amazonaws.auth.AWSSessionCredentials;
+
+import java.util.Objects;
+
+final class S3BasicSessionCredentials extends S3BasicCredentials implements AWSSessionCredentials {
+
+    private final String sessionToken;
+
+    S3BasicSessionCredentials(String accessKey, String secretKey, String sessionToken) {
+        super(accessKey, secretKey);
+        this.sessionToken = sessionToken;
+    }
+
+    @Override
+    public String getSessionToken() {
+        return sessionToken;
+    }
+
+    @Override
+    public boolean equals(final Object o) {
+        if (this == o) {
+            return true;
+        }
+        if (o == null || getClass() != o.getClass()) {
+            return false;
+        }
+        final S3BasicSessionCredentials that = (S3BasicSessionCredentials) o;
+        return sessionToken.equals(that.sessionToken) &&
+            getAWSAccessKeyId().equals(that.getAWSAccessKeyId()) &&
+            getAWSSecretKey().equals(that.getAWSSecretKey());
+    }
+
+    @Override
+    public int hashCode() {
+        return Objects.hash(sessionToken, getAWSAccessKeyId(), getAWSSecretKey());
+    }
+}

plugins/repository-s3/src/main/java/org/elasticsearch/repositories/s3/S3BlobStore.java

@@ -25,10 +25,13 @@
 import com.amazonaws.services.s3.model.ObjectListing;
 import com.amazonaws.services.s3.model.S3ObjectSummary;
 import com.amazonaws.services.s3.model.StorageClass;
+import org.elasticsearch.cluster.metadata.RepositoryMetaData;
 import org.elasticsearch.common.blobstore.BlobContainer;
 import org.elasticsearch.common.blobstore.BlobPath;
 import org.elasticsearch.common.blobstore.BlobStore;
 import org.elasticsearch.common.blobstore.BlobStoreException;
+import org.elasticsearch.common.collect.Tuple;
+import org.elasticsearch.common.settings.Settings;
 import org.elasticsearch.common.unit.ByteSizeValue;
 
 import java.io.IOException;
@@ -39,8 +42,6 @@ class S3BlobStore implements BlobStore {
 
     private final S3Service service;
 
-    private final String clientName;
-
     private final String bucket;
 
     private final ByteSizeValue bufferSize;
@@ -51,15 +52,18 @@ class S3BlobStore implements BlobStore {
 
     private final StorageClass storageClass;
 
-    S3BlobStore(S3Service service, String clientName, String bucket, boolean serverSideEncryption,
-                ByteSizeValue bufferSize, String cannedACL, String storageClass) {
+    private final Tuple<RepositoryMetaData, Settings> settingsKey;
+
+    S3BlobStore(S3Service service, String bucket, boolean serverSideEncryption,
+                ByteSizeValue bufferSize, String cannedACL, String storageClass,
+                RepositoryMetaData repositoryMetaData, Settings settings) {
         this.service = service;
-        this.clientName = clientName;
         this.bucket = bucket;
         this.serverSideEncryption = serverSideEncryption;
         this.bufferSize = bufferSize;
         this.cannedACL = initCannedACL(cannedACL);
         this.storageClass = initStorageClass(storageClass);
+        settingsKey = new Tuple<>(repositoryMetaData, settings);
     }
 
     @Override
@@ -68,7 +72,7 @@ public String toString() {
     }
 
     public AmazonS3Reference clientReference() {
-        return service.client(clientName);
+        return service.client(settingsKey);
     }
 
     public String bucket() {