Cronet API Refactoring

components/cronet/android/java/src/org/chromium/net/impl/ChromiumUrlRequestContext.java

-// 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.
-
-package org.chromium.net.impl;
-
-import android.content.Context;
-import android.os.Handler;
-import android.os.Looper;
-import android.os.Process;
-import android.util.Log;
-
-import org.chromium.base.VisibleForTesting;
-import org.chromium.base.annotations.CalledByNative;
-import org.chromium.base.annotations.JNINamespace;
-import org.chromium.net.CronetEngine;
-
-/**
- * Provides context for the native HTTP operations.
- * @deprecated Use {@link CronetEngine} instead.
- */
-@JNINamespace("cronet")
-@Deprecated
-public class ChromiumUrlRequestContext {
-    private static final int LOG_NONE = 3; // LOG(FATAL), no VLOG.
-    private static final int LOG_DEBUG = -1; // LOG(FATAL...INFO), VLOG(1)
-    private static final int LOG_VERBOSE = -2; // LOG(FATAL...INFO), VLOG(2)
-    static final String LOG_TAG = "ChromiumNetwork";
-
-    /**
-     * Native adapter object, owned by ChromiumUrlRequestContext.
-     */
-    private long mChromiumUrlRequestContextAdapter;
-
-    /**
-     * Constructor.
-     */
-    protected ChromiumUrlRequestContext(
-            final Context context, String userAgent, CronetEngine.Builder config) {
-        CronetLibraryLoader.ensureInitialized(context, config);
-        mChromiumUrlRequestContextAdapter = nativeCreateRequestContextAdapter(userAgent,
-                getLoggingLevel(),
-                CronetUrlRequestContext.createNativeUrlRequestContextConfig(context, config));
-        if (mChromiumUrlRequestContextAdapter == 0) {
-            throw new NullPointerException("Context Adapter creation failed");
-        }
-        // Post a task to UI thread to init native Chromium URLRequestContext.
-        // TODO(xunjieli): This constructor is not supposed to be invoked on
-        // the main thread. Consider making the following code into a blocking
-        // API to handle the case where we are already on main thread.
-        Runnable task = new Runnable() {
-            public void run() {
-                nativeInitRequestContextOnMainThread(mChromiumUrlRequestContextAdapter);
-            }
-        };
-        new Handler(Looper.getMainLooper()).post(task);
-    }
-
-    /**
-     * Returns the version of this network stack formatted as N.N.N.N/X where
-     * N.N.N.N is the version of Chromium and X is the revision number.
-     */
-    public static String getVersion() {
-        return ImplVersion.getVersion();
-    }
-
-    /**
-     * Initializes statistics recorder.
-     */
-    public void initializeStatistics() {
-        nativeInitializeStatistics();
-    }
-
-    /**
-     * Gets current statistics recorded since |initializeStatistics| with
-     * |filter| as a substring as JSON text (an empty |filter| will include all
-     * registered histograms).
-     */
-    public String getStatisticsJSON(String filter) {
-        return nativeGetStatisticsJSON(filter);
-    }
-
-    /**
-     * Starts NetLog logging to a file. The NetLog capture mode is either
-     * NetLogCaptureMode::Default() or NetLogCaptureMode::IncludeSocketBytes().
-     * The IncludeSocketBytes() mode includes basic events, user cookies,
-     * credentials and all transferred bytes in the log.
-     * @param fileName The complete file path. It must not be empty. If file
-     *            exists, it is truncated before starting. If actively logging,
-     *            this method is ignored.
-     * @param logAll {@code true} to use the
-     *            NetLogCaptureMode::IncludeSocketBytes() logging level. If
-     *            false, NetLogCaptureMode::Default() is used instead.
-     */
-    public void startNetLogToFile(String fileName, boolean logAll) {
-        nativeStartNetLogToFile(mChromiumUrlRequestContextAdapter, fileName, logAll);
-    }
-
-    /**
-     * Stops NetLog logging and flushes file to disk. If a logging session is
-     * not in progress, this call is ignored.
-     */
-    public void stopNetLog() {
-        nativeStopNetLog(mChromiumUrlRequestContextAdapter);
-    }
-
-    @CalledByNative
-    private void initNetworkThread() {
-        Thread.currentThread().setName("ChromiumNet");
-        Process.setThreadPriority(Process.THREAD_PRIORITY_BACKGROUND);
-    }
-
-    @Override
-    protected void finalize() throws Throwable {
-        if (mChromiumUrlRequestContextAdapter != 0) {
-            nativeReleaseRequestContextAdapter(mChromiumUrlRequestContextAdapter);
-        }
-        super.finalize();
-    }
-
-    @VisibleForTesting
-    public long getUrlRequestContextAdapter() {
-        return mChromiumUrlRequestContextAdapter;
-    }
-
-    /**
-     * @return loggingLevel see {@link #LOG_NONE}, {@link #LOG_DEBUG} and
-     *         {@link #LOG_VERBOSE}.
-     */
-    private int getLoggingLevel() {
-        int loggingLevel;
-        if (Log.isLoggable(LOG_TAG, Log.VERBOSE)) {
-            loggingLevel = LOG_VERBOSE;
-        } else if (Log.isLoggable(LOG_TAG, Log.DEBUG)) {
-            loggingLevel = LOG_DEBUG;
-        } else {
-            loggingLevel = LOG_NONE;
-        }
-        return loggingLevel;
-    }
-
-    // Returns an instance ChromiumUrlRequestContextAdapter to be stored in
-    // mChromiumUrlRequestContextAdapter.
-    private native long nativeCreateRequestContextAdapter(
-            String userAgent, int loggingLevel, long config);
-
-    private native void nativeReleaseRequestContextAdapter(long chromiumUrlRequestContextAdapter);
-
-    private native void nativeInitializeStatistics();
-
-    private native String nativeGetStatisticsJSON(String filter);
-
-    private native void nativeStartNetLogToFile(
-            long chromiumUrlRequestContextAdapter, String fileName, boolean logAll);
-
-    private native void nativeStopNetLog(long chromiumUrlRequestContextAdapter);
-
-    private native void nativeInitRequestContextOnMainThread(long chromiumUrlRequestContextAdapter);
-}