Added putUpload() methods (#284).

src/main/java/org/gitlab4j/api/AbstractApi.java

@@ -434,6 +434,47 @@ public abstract class AbstractApi implements Constants {
         }
     }
 
+
+    /**
+     * Perform a file upload using the HTTP PUT method with the specified File instance and path objects,
+     * returning a ClientResponse instance with the data returned from the endpoint.
+     *
+     * @param expectedStatus the HTTP status that should be returned from the server
+     * @param name the name for the form field that contains the file name
+     * @param fileToUpload a File instance pointing to the file to upload
+     * @param mediaType the content-type of the uploaded file, if null will be determined from fileToUpload
+     * @param pathArgs variable list of arguments used to build the URI
+     * @return a ClientResponse instance with the data returned from the endpoint
+     * @throws GitLabApiException if any exception occurs during execution
+     */
+    protected Response putUpload(Response.Status expectedStatus, String name, File fileToUpload, String mediaType, Object... pathArgs) throws GitLabApiException {
+        try {
+            return validate(getApiClient().putUpload(name, fileToUpload, mediaType, pathArgs), expectedStatus);
+        } catch (Exception e) {
+            throw handle(e);
+        }
+    }
+
+    /**
+     * Perform a file upload using the HTTP PUT method with the specified File instance and path objects,
+     * returning a ClientResponse instance with the data returned from the endpoint.
+     *
+     * @param expectedStatus the HTTP status that should be returned from the server
+     * @param name the name for the form field that contains the file name
+     * @param fileToUpload a File instance pointing to the file to upload
+     * @param mediaType the content-type of the uploaded file, if null will be determined from fileToUpload
+     * @param url the fully formed path to the GitLab API endpoint
+     * @return a ClientResponse instance with the data returned from the endpoint
+     * @throws GitLabApiException if any exception occurs during execution
+     */
+    protected Response putUpload(Response.Status expectedStatus, String name, File fileToUpload, String mediaType, URL url) throws GitLabApiException {
+        try {
+            return validate(getApiClient().putUpload(name, fileToUpload, mediaType, url), expectedStatus);
+        } catch (Exception e) {
+            throw handle(e);
+        }
+    }
+
     /**
      * Perform an HTTP DELETE call with the specified form data and path objects, returning
      * a ClientResponse instance with the data returned from the endpoint.

src/main/java/org/gitlab4j/api/GitLabApiClient.java

@@ -523,7 +523,7 @@ public class GitLabApiClient {
     }
 
     /**
-     * Perform a file upload as part of the , returning
+     * Perform a file upload using the specified media type, returning
      * a ClientResponse instance with the data returned from the endpoint.
      *
      * @param name the name for the form field that contains the file name
@@ -561,6 +561,45 @@ public class GitLabApiClient {
         }
     }
 
+    /**
+     * Perform a file upload using multipart/form-data using the HTTP PUT method, returning
+     * a ClientResponse instance with the data returned from the endpoint.
+     *
+     * @param name the name for the form field that contains the file name
+     * @param fileToUpload a File instance pointing to the file to upload
+     * @param mediaTypeString the content-type of the uploaded file, if null will be determined from fileToUpload
+     * @param pathArgs variable list of arguments used to build the URI
+     * @return a ClientResponse instance with the data returned from the endpoint
+     * @throws IOException if an error occurs while constructing the URL
+     */
+    protected Response putUpload(String name, File fileToUpload, String mediaTypeString, Object... pathArgs) throws IOException {
+        URL url = getApiUrl(pathArgs);
+        return (putUpload(name, fileToUpload, mediaTypeString, url));
+    }
+
+    /**
+     * Perform a file upload using multipart/form-data using the HTTP PUT method, returning
+     * a ClientResponse instance with the data returned from the endpoint.
+     *
+     * @param name the name for the form field that contains the file name
+     * @param fileToUpload a File instance pointing to the file to upload
+     * @param mediaTypeString the content-type of the uploaded file, if null will be determined from fileToUpload
+     * @param url the fully formed path to the GitLab API endpoint
+     * @return a ClientResponse instance with the data returned from the endpoint
+     * @throws IOException if an error occurs while constructing the URL
+     */
+    protected Response putUpload(String name, File fileToUpload, String mediaTypeString, URL url) throws IOException {
+
+        MediaType mediaType = (mediaTypeString != null ? MediaType.valueOf(mediaTypeString) : null);
+        try (MultiPart multiPart = new FormDataMultiPart()) {
+            FileDataBodyPart filePart = mediaType != null ?
+                new FileDataBodyPart(name, fileToUpload, mediaType) :
+                new FileDataBodyPart(name, fileToUpload);
+            multiPart.bodyPart(filePart);
+            return (invocation(url, null).put(Entity.entity(multiPart, MULTIPART_FORM_DATA_TYPE)));
+        }
+    }
+
     /**
      * Perform an HTTP PUT call with the specified form data and path objects, returning
      * a ClientResponse instance with the data returned from the endpoint.