Initial implementation of Cronet Async API.

components/cronet/android/cronet_url_request_context.cc

+// Copyright 2014 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.
+
+#include "components/cronet/android/cronet_url_request_context.h"
+
+#include <string>
+
+#include "base/android/jni_android.h"
+#include "base/android/jni_string.h"
+#include "base/android/scoped_java_ref.h"
+#include "base/logging.h"
+#include "base/memory/scoped_ptr.h"
+#include "base/metrics/statistics_recorder.h"
+#include "base/values.h"
+#include "components/cronet/android/cronet_url_request.h"
+#include "components/cronet/android/cronet_url_request_adapter.h"
+#include "components/cronet/android/cronet_url_request_context_adapter.h"
+#include "components/cronet/url_request_context_config.h"
+#include "jni/CronetUrlRequestContext_jni.h"
+
+namespace cronet {
+
+// Init network thread on Java side.
+void initJavaNetworkThread(
+    const base::android::ScopedJavaGlobalRef<jobject>& jowner) {
+  JNIEnv* env = base::android::AttachCurrentThread();
+  Java_CronetUrlRequestContext_initNetworkThread(env, jowner.obj());
+}
+
+// Explicitly register static JNI functions.
+bool CronetUrlRequestContextRegisterJni(JNIEnv* env) {
+  return RegisterNativesImpl(env);
+}
+
+// Sets global user-agent to be used for all subsequent requests.
+static jlong CreateRequestContextAdapter(JNIEnv* env,
+                                         jobject jcaller,
+                                         jobject japp_context,
+                                         jstring jconfig) {
+  std::string config_string =
+      base::android::ConvertJavaStringToUTF8(env, jconfig);
+  scoped_ptr<URLRequestContextConfig> context_config(
+      new URLRequestContextConfig());
+  if (!context_config->LoadFromJSON(config_string))
+    return 0;
+
+  // Set application context.
+  base::android::ScopedJavaLocalRef<jobject> scoped_context(env, japp_context);
+  base::android::InitApplicationContext(env, scoped_context);
+
+  base::android::ScopedJavaGlobalRef<jobject> jcaller_ref;
+  jcaller_ref.Reset(env, jcaller);
+
+  CronetURLRequestContextAdapter* context_adapter =
+      new CronetURLRequestContextAdapter();
+  base::Closure init_java_network_thread = base::Bind(&initJavaNetworkThread,
+                                                      jcaller_ref);
+  context_adapter->Initialize(context_config.Pass(), init_java_network_thread);
+
+  return reinterpret_cast<jlong>(context_adapter);
+}
+
+// Destroys native objects.
+static void DestroyRequestContextAdapter(JNIEnv* env,
+                                         jobject jcaller,
+                                         jlong jurl_request_context_adapter) {
+  DCHECK(jurl_request_context_adapter);
+  CronetURLRequestContextAdapter* context_adapter =
+      reinterpret_cast<CronetURLRequestContextAdapter*>(
+          jurl_request_context_adapter);
+  context_adapter->Destroy();
+}
+
+// Starts recording NetLog into file with |fileName|.
+static void StartNetLogToFile(JNIEnv* env,
+                              jobject jcaller,
+                              jlong jurl_request_context_adapter,
+                              jstring jfile_name) {
+  if (jurl_request_context_adapter == 0)
+    return;
+  CronetURLRequestContextAdapter* context_adapter =
+      reinterpret_cast<CronetURLRequestContextAdapter*>(
+          jurl_request_context_adapter);
+  std::string file_name =
+      base::android::ConvertJavaStringToUTF8(env, jfile_name);
+  context_adapter->StartNetLogToFile(file_name);
+}
+
+// Stops recording NetLog.
+static void StopNetLog(JNIEnv* env,
+                       jobject jcaller,
+                       jlong jurl_request_context_adapter) {
+  if (jurl_request_context_adapter == 0)
+    return;
+  CronetURLRequestContextAdapter* context_adapter =
+      reinterpret_cast<CronetURLRequestContextAdapter*>(
+          jurl_request_context_adapter);
+  context_adapter->StopNetLog();
+}
+
+static jint SetMinLogLevel(JNIEnv* env, jobject jcaller, jint jlog_level) {
+  jint old_log_level = static_cast<jint>(logging::GetMinLogLevel());
+  // MinLogLevel is global, shared by all URLRequestContexts.
+  logging::SetMinLogLevel(static_cast<int>(jlog_level));
+  return old_log_level;
+}
+
+}  // namespace cronet