UserMetadataManager.java 文件源码

/**
 * Adds a device to the user's list of devices if it is not yet added.
 */
public void addMyDevice(GoosciDeviceSpec.DeviceSpec device) {
    GoosciUserMetadata.UserMetadata userMetadata = getUserMetadata();

    if (userMetadata == null) {
        return;
    }

    GoosciDeviceSpec.DeviceSpec[] myDevices = userMetadata.myDevices;
    for (GoosciDeviceSpec.DeviceSpec myDevice : myDevices) {
        if (MessageNano.messageNanoEquals(myDevice, device)) {
            return;
        }
    }

    GoosciDeviceSpec.DeviceSpec[] newSpecs = Arrays.copyOf(myDevices, myDevices.length + 1);
    newSpecs[newSpecs.length - 1] = device;
    userMetadata.myDevices = newSpecs;

    // TODO: capture this pattern (read, null check, write) in a helper method?
    startWriteTimer();
}