Index: device/sensors/android/java/src/org/chromium/device/sensors/SensorConfigurations.java |
diff --git a/device/sensors/android/java/src/org/chromium/device/sensors/SensorConfigurations.java b/device/sensors/android/java/src/org/chromium/device/sensors/SensorConfigurations.java |
new file mode 100644 |
index 0000000000000000000000000000000000000000..0571c97683073c9451c6af1b083a9351b3b33173 |
--- /dev/null |
+++ b/device/sensors/android/java/src/org/chromium/device/sensors/SensorConfigurations.java |
@@ -0,0 +1,55 @@ |
+// 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.device.sensors; |
+ |
+import org.chromium.mojom.device.sensors.SensorConfiguration; |
+ |
+import java.util.ArrayList; |
+import java.util.Collections; |
+import java.util.Comparator; |
+import java.util.List; |
+ |
+/** |
+ * Generic list of configurations. |
+ */ |
+public class SensorConfigurations extends ArrayList<SensorConfiguration> { |
+ private final Comparator<SensorConfiguration> mComparator; |
+ |
+ SensorConfigurations() { |
+ super(); |
+ mComparator = new SensorConfigurationComparator(); |
+ } |
+ |
+ SensorConfigurations(Comparator<SensorConfiguration> comparator) { |
+ super(); |
+ mComparator = comparator; |
+ } |
+ |
+ private static class SensorConfigurationComparator implements Comparator<SensorConfiguration> { |
+ @Override |
+ public int compare(SensorConfiguration lhs, SensorConfiguration rhs) { |
+ if (lhs.frequency == rhs.frequency) |
+ return 0; |
+ else if (rhs.frequency > lhs.frequency) |
+ return 1; |
+ else |
+ return -1; |
+ } |
+ }; |
+ |
+ public boolean add(SensorConfiguration configuration) { |
+ if (configuration == null) return false; |
+ boolean result = super.add(configuration); |
+ if (result) Collections.sort(this, mComparator); |
+ return result; |
+ } |
+ |
+ public boolean remove(SensorConfiguration configuration) { |
+ if (configuration == null) return false; |
+ if (!super.remove(configuration)) return false; |
+ Collections.sort(this, mComparator); |
+ return true; |
+ } |
+}; |