Cronet API Refactoring

components/cronet/android/api/src/org/chromium/net/ExperimentalUrlRequest.java

+// Copyright 2016 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+package org.chromium.net;
+
+import java.util.concurrent.Executor;
+
+/**
+ * {@link UrlRequest} that exposes experimental features. Created using
+ * {@link ExperimentalUrlRequest.Builder}. Every instance of {@link UrlRequest} can
+ * be casted to an instance of this class.
+ *
+ * {@hide since this class exposes experimental features that should be hidden}.
+ */
+public abstract class ExperimentalUrlRequest extends UrlRequest {
+    /**
+     * Builder for building {@link UrlRequest}. Created by
+     * {@link ExperimentalCronetEngine#newUrlRequestBuilder}. A reference to this class
+     * can also be obtained through downcasting of {@link UrlRequest.Builder}.
+     */
+    public abstract static class Builder extends UrlRequest.Builder {
+        /**
+         * Disables connection migration for the request if enabled for
+         * the session.
+         * @return the builder to facilitate chaining.
+         */
+        public abstract Builder disableConnectionMigration();
+
+        /**
+         * Associates the annotation object with this request. May add more than one.
+         * Passed through to a {@link RequestFinishedInfo.Listener},
+         * see {@link RequestFinishedInfo#getAnnotations}.
+         *
+         * @param annotation an object to pass on to the {@link RequestFinishedInfo.Listener} with a
+         * {@link RequestFinishedInfo}.
+         * @return the builder to facilitate chaining.
+         */
+        public abstract Builder addRequestAnnotation(Object annotation);
+
+        // To support method chaining, override superclass methods to return an
+        // instance of this class instead of the parent.
+
+        @Override
+        public abstract Builder setHttpMethod(String method);
+
+        @Override
+        public abstract Builder addHeader(String header, String value);
+
+        @Override
+        public abstract Builder disableCache();
+
+        @Override
+        public abstract Builder setPriority(int priority);
+
+        @Override
+        public abstract Builder setUploadDataProvider(
+                UploadDataProvider uploadDataProvider, Executor executor);
+
+        @Override
+        public abstract Builder allowDirectExecutor();
+
+        @Override
+        public abstract ExperimentalUrlRequest build();
+    }
+}