Make FeatureFlags a Dumpable

import android.util.SparseArray;

import androidx.annotation.BoolRes;

import androidx.annotation.NonNull;

import androidx.annotation.Nullable;

import com.android.systemui.Dumpable;

import com.android.systemui.R;

import com.android.systemui.dagger.SysUISingleton;

import com.android.systemui.dagger.qualifiers.Main;

import com.android.systemui.dump.DumpManager;

import com.android.systemui.plugins.FlagReaderPlugin;

import com.android.systemui.plugins.PluginListener;

import com.android.systemui.shared.plugins.PluginManager;

import com.android.systemui.util.wrapper.BuildInfo;

import java.io.FileDescriptor;

import java.io.PrintWriter;

import java.util.ArrayList;

import javax.inject.Inject;

/**

 * Reads and caches feature flags for quick access

 * Calls to this class should probably be wrapped by a method in {@link FeatureFlags}.

 */

@SysUISingleton

public class FeatureFlagReader {

public class FeatureFlagReader implements Dumpable {

    private final Resources mResources;

    private final boolean mAreFlagsOverrideable;

    private final PluginManager mPluginManager;

    public FeatureFlagReader(

            @Main Resources resources,

            BuildInfo build,

            DumpManager dumpManager,

            PluginManager pluginManager,

            SystemPropertiesHelper systemPropertiesHelper) {

        mResources = resources;

        mAreFlagsOverrideable =

                build.isDebuggable() && mResources.getBoolean(R.bool.are_flags_overrideable);

        dumpManager.registerDumpable("FeatureFlags", this);

        mPluginManager.addPluginListener(mPluginListener, FlagReaderPlugin.class);

    }

        }

    }

    @Override

    public void dump(@NonNull FileDescriptor fd, @NonNull PrintWriter pw, @NonNull String[] args) {

        ArrayList<String> flagStrings = new ArrayList<>(mCachedFlags.size());

        for (int i = 0; i < mCachedFlags.size(); i++) {

            int key = mCachedFlags.keyAt(i);

            // get the object by the key.

            CachedFlag flag = mCachedFlags.get(key);

            flagStrings.add("  " + RESNAME_PREFIX + flag.name + ": " + flag.value + "\n");

        }

        flagStrings.sort(String.CASE_INSENSITIVE_ORDER);

        pw.println("AreFlagsOverrideable: " + mAreFlagsOverrideable);

        pw.println("Cached FeatureFlags:");

        for (String flagString : flagStrings) {

            pw.print(flagString);

        }

    }

    private static class CachedFlag {

        public final String name;

        public final boolean value;

package com.android.systemui.flags;

import static com.google.common.truth.Truth.assertThat;

import static org.junit.Assert.assertFalse;

import static org.junit.Assert.assertTrue;

import static org.mockito.ArgumentMatchers.anyBoolean;

import static org.mockito.ArgumentMatchers.anyString;

import static org.mockito.ArgumentMatchers.eq;

import static org.mockito.Mockito.mock;

import static org.mockito.Mockito.times;

import static org.mockito.Mockito.verify;

import static org.mockito.Mockito.when;

import com.android.systemui.R;

import com.android.systemui.SysuiTestCase;

import com.android.systemui.dump.DumpManager;

import com.android.systemui.shared.plugins.PluginManager;

import com.android.systemui.util.wrapper.BuildInfo;

import org.mockito.Mock;

import org.mockito.MockitoAnnotations;

import java.io.FileDescriptor;

import java.io.PrintWriter;

import java.io.StringWriter;

@SmallTest

public class FeatureFlagReaderTest extends SysuiTestCase {

    @Mock private Resources mResources;

    @Mock private BuildInfo mBuildInfo;

    @Mock private DumpManager mDumpManager;

    @Mock private PluginManager mPluginManager;

    @Mock private SystemPropertiesHelper mSystemPropertiesHelper;

        when(mBuildInfo.isDebuggable()).thenReturn(isDebuggable);

        when(mResources.getBoolean(R.bool.are_flags_overrideable)).thenReturn(isOverrideable);

        mReader = new FeatureFlagReader(

                mResources, mBuildInfo, mPluginManager, mSystemPropertiesHelper);

                mResources, mBuildInfo, mDumpManager, mPluginManager, mSystemPropertiesHelper);

    }

    @Test

                .getBoolean(fakeStorageKey(FLAG_RESID_0), false);

    }

    @Test

    public void testDump() {

        // GIVEN that the flag 0 (by override) and 1 (by default) are both true

        overrideFlag(FLAG_RESID_0, true);

        // WHEN the flags have been accessed

        assertTrue(mReader.isEnabled(FLAG_RESID_0));

        assertTrue(mReader.isEnabled(FLAG_RESID_1));

        // THEN the dump contains the flags and their correct values

        StringWriter sw = new StringWriter();

        PrintWriter pw = new PrintWriter(sw);

        mReader.dump(mock(FileDescriptor.class), pw, new String[0]);

        pw.flush();

        String dump = sw.toString();

        assertThat(dump).contains(" flag_testname_" + FLAG_RESID_0 + ": true\n");

        assertThat(dump).contains(" flag_testname_" + FLAG_RESID_1 + ": true\n");

        assertThat(dump).contains("AreFlagsOverrideable: true\n");

    }

    private void defineFlag(int resId, boolean value) {

        when(mResources.getBoolean(resId)).thenReturn(value);

        when(mResources.getResourceEntryName(resId)).thenReturn(fakeStorageKey(resId));

        when(mResources.getResourceEntryName(resId)).thenReturn(fakeResourceEntryName(resId));

    }

    private void overrideFlag(int resId, boolean value) {

                .thenReturn(value);

    }

    private String fakeResourceEntryName(@BoolRes int resId) {

        return "flag_testname_" + resId;

    }

    private String fakeStorageKey(@BoolRes int resId) {

        return "persist.systemui.flag_testname_" + resId;

    }