Add a method to get S3 URI from a SimpleStorageResource.

Fixes gh-361
Closes gh-565

Author: tmnuwan12

spring-cloud-aws-core/src/main/java/org/springframework/cloud/aws/core/io/s3/SimpleStorageResource.java

@@ -23,6 +23,8 @@
 import java.io.IOException;
 import java.io.InputStream;
 import java.io.OutputStream;
+import java.net.URI;
+import java.net.URISyntaxException;
 import java.net.URL;
 import java.net.URLEncoder;
 import java.nio.charset.StandardCharsets;
@@ -147,6 +149,15 @@ public URL getURL() throws IOException {
 				"/" + this.bucketName + "/" + encodedObjectName);
 	}
 
+	public URI getS3Uri() {
+		try {
+			return new URI("s3", "//" + this.bucketName + "/" + this.objectName, null);
+		}
+		catch (URISyntaxException e) {
+			throw new RuntimeException("Failed to resolve s3:// uri", e);
+		}
+	}
+
 	@Override
 	public File getFile() throws IOException {
 		throw new UnsupportedOperationException(

spring-cloud-aws-core/src/test/java/org/springframework/cloud/aws/core/io/s3/SimpleStorageResourceTest.java

@@ -232,6 +232,21 @@ public void getUrl_existingObject_returnsUrlWithS3Prefix() throws Exception {
 
 	}
 
+	@Test
+	public void getUrl_existingObject_returnsUrlWithS3Scheme() throws Exception {
+
+		AmazonS3Client amazonS3 = mock(AmazonS3Client.class);
+
+		// Act
+		SimpleStorageResource simpleStorageResource = new SimpleStorageResource(amazonS3,
+				"bucket", "object", new SyncTaskExecutor());
+
+		// Assert
+		assertThat(simpleStorageResource.getS3Uri())
+				.isEqualTo(new URI("s3://bucket/object"));
+
+	}
+
 	@Test
 	public void getFile_existingObject_throwsMeaningFullException() throws Exception {