Added support for file key

sdk/storage/azure-storage-blob-nio/CHANGELOG.md

@@ -1,7 +1,7 @@
 # Release History
 
 ## 12.0.0-beta.3 (Unreleased)
-
+- Added support for file key on AzureBasicFileAttributes and AzureBlobFileAttributes
 
 ## 12.0.0-beta.2 (2020-08-13)
 - Added checks to ensure file system has not been closed before operating on data

sdk/storage/azure-storage-blob-nio/src/main/java/com/azure/storage/blob/nio/AzureBasicFileAttributes.java

@@ -43,6 +43,7 @@ public final class AzureBasicFileAttributes implements BasicFileAttributes {
     }
 
     private final BlobProperties properties;
+    private final AzureResource resource;
 
     /*
     There are some work-arounds we could do to try to accommodate virtual directories such as making a checkDirStatus
@@ -54,7 +55,8 @@ public final class AzureBasicFileAttributes implements BasicFileAttributes {
      */
     AzureBasicFileAttributes(Path path) throws IOException {
         try {
-            this.properties = new AzureResource(path).getBlobClient().getProperties();
+            this.resource = new AzureResource(path);
+            this.properties = resource.getBlobClient().getProperties();
         } catch (BlobStorageException e) {
             throw LoggingUtility.logError(logger, new IOException(e));
         }
@@ -148,12 +150,12 @@ public long size() {
     }
 
     /**
-     * Unsupported.
+     * Returns the url of the resource.
      *
-     * @throws UnsupportedOperationException Operation not supported.
+     * @return The file key, which is the url.
      */
     @Override
     public Object fileKey() {
-        throw new UnsupportedOperationException();
+        return this.resource.getBlobClient().getBlobUrl();
     }
 }

sdk/storage/azure-storage-blob-nio/src/main/java/com/azure/storage/blob/nio/AzureBlobFileAttributes.java

@@ -42,10 +42,12 @@ public final class AzureBlobFileAttributes implements BasicFileAttributes {
     private final ClientLogger logger = new ClientLogger(AzureBlobFileAttributes.class);
 
     private final BlobProperties properties;
+    private final AzureResource resource;
 
     AzureBlobFileAttributes(Path path) throws IOException {
         try {
-            this.properties = new AzureResource(path).getBlobClient().getProperties();
+            this.resource =  new AzureResource(path);
+            this.properties = resource.getBlobClient().getProperties();
         } catch (BlobStorageException e) {
             throw LoggingUtility.logError(logger, new IOException("Path: " + path.toString(), e));
         }
@@ -321,11 +323,12 @@ public long size() {
     }
 
     /**
-     * Unsupported.
-     * @throws UnsupportedOperationException Operation not supported.
+     * Returns the url of the resource.
+     *
+     * @return The file key, which is the url.
      */
     @Override
     public Object fileKey() {
-        throw new UnsupportedOperationException();
+        return resource.getBlobClient().getBlobUrl();
     }
 }

sdk/storage/azure-storage-blob-nio/src/test/java/com/azure/storage/blob/nio/AttributeViewTest.groovy

@@ -39,6 +39,7 @@ class AttributeViewTest extends APISpec {
         FileTime.from(props.getLastModified().toInstant()) == attr.lastModifiedTime()
         FileTime.from(props.getCreationTime().toInstant()) == attr.creationTime()
         attr.isRegularFile()
+        bc.getBlobUrl() == attr.fileKey()
         !attr.isDirectory()
         !attr.isSymbolicLink()
         !attr.isOther()
@@ -86,6 +87,7 @@ class AttributeViewTest extends APISpec {
         FileTime.from(props.getLastModified().toInstant()) == attr.lastModifiedTime()
         FileTime.from(props.getCreationTime().toInstant()) == attr.creationTime()
         attr.isRegularFile()
+        bc.getBlobUrl() == attr.fileKey()
         !attr.isDirectory()
         !attr.isSymbolicLink()
         !attr.isOther()