Changing iAuthenticationProvider interface to access http request.

Author: deepak2016

src/main/java/com/microsoft/graph/httpcore/AuthenticationHandler.java

@@ -17,8 +17,7 @@ public AuthenticationHandler(IAuthenticationProvider authProvider) {
 
 	@Override
 	public void process(HttpRequest request, HttpContext context) throws HttpException, IOException {
-		String token = authProvider.getAccessToken();
-		request.addHeader("Authorization", "Bearer " + token);
+		authProvider.authenticateRequest(request);
 	}
 
 }

src/main/java/com/microsoft/graph/httpcore/IAuthenticationProvider.java

@@ -3,10 +3,10 @@
 import org.apache.http.HttpRequest;
 
 public interface IAuthenticationProvider {
-	/**
-     * Get Access Token
+    /**
+     * Authenticates the request
      * 
+     * @param request the request to authenticate
      */
-    
-    String getAccessToken();
+    void authenticateRequest(HttpRequest request);
 }

src/test/java/com/microsoft/graph/httpcore/AuthenticationHandlerTest.java

@@ -17,9 +17,9 @@ public class AuthenticationHandlerTest {
 	static String token = "TEST-TOKEN";
 
 	public static class AuthProvider implements IAuthenticationProvider{
-		public String getAccessToken() {
-			return token;
-		}
+		 public void authenticateRequest(HttpRequest request) {
+			 request.addHeader("Authorization", "Bearer " + token);
+		 }
 	}
 
 	@Test

src/test/java/com/microsoft/graph/httpcore/HttpClientsTest.java

@@ -2,6 +2,7 @@
 
 import static org.junit.Assert.assertTrue;
 
+import org.apache.http.HttpRequest;
 import org.apache.http.impl.client.CloseableHttpClient;
 import org.junit.Test;
 
@@ -10,10 +11,9 @@ public class HttpClientsTest {
 	@Test
 	public void testHttpClientCreation() {
 		IAuthenticationProvider authprovider = new IAuthenticationProvider() {
-			@Override
-			public String getAccessToken() {
-				return "TOKEN";
-			}
+			public void authenticateRequest(HttpRequest request) {
+				 request.addHeader("Authorization", "Bearer " + "TOKEN");
+			 }
 		};
 		CloseableHttpClient httpclient = HttpClients.createDefault(authprovider);
 		assertTrue(httpclient != null);