/*
* Copyright (C) 2010 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.internal.telephony;
import android.os.SystemProperties;
public class SimRegionCache {
public static final int MCC_UNSET = Integer.MIN_VALUE;
public static final int MCC_KOREAN = 450;
private static int regionFromMcc = MCC_UNSET;
/**
* Returns the region as read from the MCC of the SIM card.
* If the property {@link TelephonyProperties#
* PROPERTY_ICC_OPERATOR_NUMERIC}
* returns null or an empty String, the value is {@link #MCC_UNSET}
*
* @return the cached region, if set.
*/
public static int getRegion() {
if (regionFromMcc == MCC_UNSET) {
String plmn = SystemProperties.get(
TelephonyProperties.PROPERTY_ICC_OPERATOR_NUMERIC,
null);
if (plmn != null && plmn.length() >= 3) {
try {
regionFromMcc = Integer.parseInt(plmn.substring(0, 3));
} catch(Exception e) {
// Nothing that can be done here.
}
}
}
return regionFromMcc;
}
}