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diff --git a/java/com/android/dialer/strictmode/StrictModeUtils.java b/java/com/android/dialer/strictmode/StrictModeUtils.java
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+/*
+ * Copyright (C) 2017 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.android.dialer.strictmode;
+
+import android.os.Build;
+import android.os.StrictMode;
+import android.support.annotation.Nullable;
+import com.android.dialer.common.Assert;
+import com.google.auto.value.AutoValue;
+import java.util.Map;
+import java.util.Map.Entry;
+
+/** Utilities for enforcing strict-mode in an app. */
+final class StrictModeUtils {
+
+ /**
+ * Set the recommended policy for the app.
+ *
+ * @param threadPenalties policy with preferred penalties. Detection bits will be ignored.
+ */
+ static void setRecommendedMainThreadPolicy(StrictMode.ThreadPolicy threadPenalties) {
+ StrictMode.ThreadPolicy threadPolicy =
+ new StrictMode.ThreadPolicy.Builder(threadPenalties).detectAll().build();
+ StrictMode.setThreadPolicy(threadPolicy);
+ }
+
+ /**
+ * Set the recommended policy for the app.
+ *
+ * @param vmPenalties policy with preferred penalties. Detection bits should be unset.
+ */
+ static void setRecommendedVMPolicy(StrictMode.VmPolicy vmPenalties) {
+ setRecommendedVMPolicy(vmPenalties, StrictModeVmConfig.empty());
+ }
+
+ /**
+ * Set the recommended policy for the app.
+ *
+ * @param vmPenalties policy with preferred penalties. Detection bits should be unset.
+ */
+ private static void setRecommendedVMPolicy(
+ StrictMode.VmPolicy vmPenalties, StrictModeVmConfig config) {
+ Assert.isNotNull(config);
+ StrictMode.VmPolicy.Builder vmPolicyBuilder =
+ new StrictMode.VmPolicy.Builder(vmPenalties)
+ .detectLeakedClosableObjects()
+ .detectLeakedSqlLiteObjects();
+ if (Build.VERSION.SDK_INT >= 16) {
+ vmPolicyBuilder.detectLeakedRegistrationObjects();
+ }
+ if (Build.VERSION.SDK_INT >= 18) {
+ vmPolicyBuilder.detectFileUriExposure();
+ }
+ if (Build.VERSION.SDK_INT >= 21) {
+ // Even though this API is available earlier, it did not properly run finalizers.
+ // This avoids lots of false positives.
+
+ // TODO(zachh): Use LeakCanary and remove this line.
+ vmPolicyBuilder.detectActivityLeaks();
+
+ if (config.maxInstanceLimits() != null) {
+ for (Entry<Class<?>, Integer> entry : config.maxInstanceLimits().entrySet()) {
+ vmPolicyBuilder.setClassInstanceLimit(entry.getKey(), entry.getValue());
+ }
+ }
+ }
+ if (Build.VERSION.SDK_INT >= 23) {
+ // TODO(azlatin): Enable clear-text check once b/36730713 is fixed.
+ // vmPolicyBuilder.detectCleartextNetwork();
+ }
+ // Once OC Lands:
+ // .detectContentUriWithoutPermission()
+ // .detectUntaggedSockets()
+ StrictMode.setVmPolicy(vmPolicyBuilder.build());
+ }
+
+ /** VmPolicy configuration. */
+ @AutoValue
+ abstract static class StrictModeVmConfig {
+ /** A map of a class to the maximum number of allowed instances of that class. */
+ @Nullable
+ abstract Map<Class<?>, Integer> maxInstanceLimits();
+
+ public static StrictModeVmConfig empty() {
+ return builder().build();
+ }
+
+ public static Builder builder() {
+ return new AutoValue_StrictModeUtils_StrictModeVmConfig.Builder();
+ }
+
+ /** VmPolicy configuration builder. */
+ @AutoValue.Builder
+ public abstract static class Builder {
+ public abstract Builder setMaxInstanceLimits(Map<Class<?>, Integer> limits);
+
+ public abstract StrictModeVmConfig build();
+
+ Builder() {}
+ }
+
+ StrictModeVmConfig() {}
+ }
+
+ private StrictModeUtils() {}
+}