Dissolve gerrit-extension-api top-level directory

Change-Id: I47a130d3203cf45ce09f2a44e81449c55eaa693b

java/com/google/gerrit/extensions/restapi/RestReadView.java

@@ -0,0 +1,39 @@
+// Copyright (C) 2012 The Android Open Source Project
+//
+// 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 com.google.gerrit.extensions.restapi;
+
+/**
+ * RestView to read a resource without modification.
+ *
+ * @param <R> type of resource the view reads.
+ */
+public interface RestReadView<R extends RestResource> extends RestView<R> {
+  /**
+   * Process the view operation by reading from the resource.
+   *
+   * @param resource resource to read.
+   * @return result to return to the client. Use {@link BinaryResult} to avoid automatic conversion
+   *     to JSON.
+   * @throws AuthException the client is not permitted to access this view.
+   * @throws BadRequestException the request was incorrectly specified and cannot be handled by this
+   *     view.
+   * @throws ResourceConflictException the resource state does not permit this view to make the
+   *     changes at this time.
+   * @throws Exception the implementation of the view failed. The exception will be logged and HTTP
+   *     500 Internal Server Error will be returned to the client.
+   */
+  Object apply(R resource)
+      throws AuthException, BadRequestException, ResourceConflictException, Exception;
+}