adding new factory class and interface

pom.xml

@@ -21,7 +21,7 @@
   <groupId>org.opengroup.osdu</groupId>
   <artifactId>core-lib-azure</artifactId>
   <packaging>jar</packaging>
-  <version>0.0.19</version>
+  <version>0.0.20</version>
   <name>core-lib-azure</name>
 
   <properties>

src/main/java/org/opengroup/osdu/azure/blobstorage/BlobServiceClientFactoryImpl.java

+// Copyright © Microsoft Corporation
+//
+// 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.opengroup.osdu.azure.blobstorage;
+
+import com.azure.identity.DefaultAzureCredential;
+import com.azure.storage.blob.BlobServiceClient;
+import com.azure.storage.blob.BlobServiceClientBuilder;
+import org.opengroup.osdu.common.Validators;
+import org.springframework.beans.factory.annotation.Autowired;
+
+import javax.inject.Named;
+
+/**
+ *  Implementation for IBlobServiceClientFactory.
+ */
+public class BlobServiceClientFactoryImpl implements IBlobServiceClientFactory {
+
+    @Autowired
+    private DefaultAzureCredential defaultAzureCredential;
+
+    @Autowired
+    @Named("STORAGE_ACCOUNT_NAME")
+    private String storageAccount;
+
+    private BlobServiceClient blobServiceClient;
+
+    /**
+     * Parameter-less constructor.
+     * This initializes the blobServiceClient.
+     */
+    public BlobServiceClientFactoryImpl() {
+        Validators.checkNotNull(defaultAzureCredential, "Credential cannot be null");
+        Validators.checkNotNullAndNotEmpty(storageAccount, "KV URL");
+
+        String endpoint = String.format("https://%s.blob.core.windows.net", storageAccount);
+        blobServiceClient = new BlobServiceClientBuilder()
+                .endpoint(endpoint)
+                .credential(defaultAzureCredential)
+                .buildClient();
+    }
+
+    /**
+     * @param dataPartitionId data partition id.
+     * @return BlobServiceClient corresponding to the given data partition id.
+     */
+    @Override
+    public BlobServiceClient getBlobServiceClient(final String dataPartitionId) {
+        return blobServiceClient;
+    }
+}

src/main/java/org/opengroup/osdu/azure/blobstorage/IBlobServiceClientFactory.java

+// Copyright © Microsoft Corporation
+//
+// 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.opengroup.osdu.azure.blobstorage;
+
+import com.azure.storage.blob.BlobServiceClient;
+
+/**
+ *  Interface for Blob service client factory to return appropriate
+ *  blobServiceClient based on the data partition id and container name.
+ */
+public interface IBlobServiceClientFactory {
+    /**
+     *
+     * @param dataPartitionId       data partition id.
+     * @return      BlobServiceClient corresponding to the given data partition id.
+     */
+    BlobServiceClient getBlobServiceClient(String dataPartitionId);
+}