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/*
* Copyright (C) 2012 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 android.telephony;
import android.annotation.Nullable;
import android.annotation.UnsupportedAppUsage;
import android.os.Parcel;
import android.text.TextUtils;
import java.util.Objects;
/**
* CellIdentity to represent a unique GSM cell
*/
public final class CellIdentityGsm extends CellIdentity {
private static final String TAG = CellIdentityGsm.class.getSimpleName();
private static final boolean DBG = false;
// 16-bit Location Area Code, 0..65535
private final int mLac;
// 16-bit GSM Cell Identity described in TS 27.007, 0..65535
private final int mCid;
// 16-bit GSM Absolute RF Channel Number
@UnsupportedAppUsage
private final int mArfcn;
// 6-bit Base Station Identity Code
@UnsupportedAppUsage
private final int mBsic;
/**
* @hide
*/
@UnsupportedAppUsage
public CellIdentityGsm() {
super(TAG, CellInfo.TYPE_GSM, null, null, null, null);
mLac = Integer.MAX_VALUE;
mCid = Integer.MAX_VALUE;
mArfcn = Integer.MAX_VALUE;
mBsic = Integer.MAX_VALUE;
}
/**
* public constructor
* @param mcc 3-digit Mobile Country Code, 0..999
* @param mnc 2 or 3-digit Mobile Network Code, 0..999
* @param lac 16-bit Location Area Code, 0..65535
* @param cid 16-bit GSM Cell Identity or 28-bit UMTS Cell Identity
*
* @hide
*/
public CellIdentityGsm(int mcc, int mnc, int lac, int cid) {
this(lac, cid, Integer.MAX_VALUE, Integer.MAX_VALUE,
String.valueOf(mcc), String.valueOf(mnc), null, null);
}
/**
* public constructor
* @param mcc 3-digit Mobile Country Code, 0..999
* @param mnc 2 or 3-digit Mobile Network Code, 0..999
* @param lac 16-bit Location Area Code, 0..65535
* @param cid 16-bit GSM Cell Identity or 28-bit UMTS Cell Identity
* @param arfcn 16-bit GSM Absolute RF Channel Number
* @param bsic 6-bit Base Station Identity Code
*
* @hide
*/
public CellIdentityGsm(int mcc, int mnc, int lac, int cid, int arfcn, int bsic) {
this(lac, cid, arfcn, bsic, String.valueOf(mcc), String.valueOf(mnc), null, null);
}
/**
* public constructor
* @param lac 16-bit Location Area Code, 0..65535
* @param cid 16-bit GSM Cell Identity or 28-bit UMTS Cell Identity
* @param arfcn 16-bit GSM Absolute RF Channel Number
* @param bsic 6-bit Base Station Identity Code
* @param mccStr 3-digit Mobile Country Code in string format
* @param mncStr 2 or 3-digit Mobile Network Code in string format
* @param alphal long alpha Operator Name String or Enhanced Operator Name String
* @param alphas short alpha Operator Name String or Enhanced Operator Name String
*
* @hide
*/
public CellIdentityGsm(int lac, int cid, int arfcn, int bsic, String mccStr,
String mncStr, String alphal, String alphas) {
super(TAG, CellInfo.TYPE_GSM, mccStr, mncStr, alphal, alphas);
mLac = lac;
mCid = cid;
mArfcn = arfcn;
// In RIL BSIC is a UINT8, so 0xFF is the 'INVALID' designator
// for inbound parcels
mBsic = (bsic == 0xFF) ? Integer.MAX_VALUE : bsic;
}
private CellIdentityGsm(CellIdentityGsm cid) {
this(cid.mLac, cid.mCid, cid.mArfcn, cid.mBsic, cid.mMccStr,
cid.mMncStr, cid.mAlphaLong, cid.mAlphaShort);
}
CellIdentityGsm copy() {
return new CellIdentityGsm(this);
}
/**
* @return 3-digit Mobile Country Code, 0..999, Integer.MAX_VALUE if unknown
* @deprecated Use {@link #getMccString} instead.
*/
@Deprecated
public int getMcc() {
return (mMccStr != null) ? Integer.valueOf(mMccStr) : Integer.MAX_VALUE;
}
/**
* @return 2 or 3-digit Mobile Network Code, 0..999, Integer.MAX_VALUE if unknown
* @deprecated Use {@link #getMncString} instead.
*/
@Deprecated
public int getMnc() {
return (mMncStr != null) ? Integer.valueOf(mMncStr) : Integer.MAX_VALUE;
}
/**
* @return 16-bit Location Area Code, 0..65535, Integer.MAX_VALUE if unknown
*/
public int getLac() {
return mLac;
}
/**
* @return CID
* Either 16-bit GSM Cell Identity described
* in TS 27.007, 0..65535, Integer.MAX_VALUE if unknown
*/
public int getCid() {
return mCid;
}
/**
* @return 16-bit GSM Absolute RF Channel Number, Integer.MAX_VALUE if unknown
*/
public int getArfcn() {
return mArfcn;
}
/**
* @return 6-bit Base Station Identity Code, Integer.MAX_VALUE if unknown
*/
public int getBsic() {
return mBsic;
}
/**
* @return a 5 or 6 character string (MCC+MNC), null if any field is unknown
*/
public String getMobileNetworkOperator() {
return (mMccStr == null || mMncStr == null) ? null : mMccStr + mMncStr;
}
/**
* @return Mobile Country Code in string format, null if unknown
*/
public String getMccString() {
return mMccStr;
}
/**
* @return Mobile Network Code in string format, null if unknown
*/
public String getMncString() {
return mMncStr;
}
/** @hide */
@Override
public int getChannelNumber() {
return mArfcn;
}
/**
* @deprecated Primary Scrambling Code is not applicable to GSM.
* @return Integer.MAX_VALUE, undefined for GSM
*/
@Deprecated
public int getPsc() {
return Integer.MAX_VALUE;
}
@Override
public int hashCode() {
return Objects.hash(mLac, mCid, super.hashCode());
}
@Override
public boolean equals(Object other) {
if (this == other) {
return true;
}
if (!(other instanceof CellIdentityGsm)) {
return false;
}
CellIdentityGsm o = (CellIdentityGsm) other;
return mLac == o.mLac
&& mCid == o.mCid
&& mArfcn == o.mArfcn
&& mBsic == o.mBsic
&& TextUtils.equals(mMccStr, o.mMccStr)
&& TextUtils.equals(mMncStr, o.mMncStr)
&& super.equals(other);
}
@Override
public String toString() {
return new StringBuilder(TAG)
.append(":{ mLac=").append(mLac)
.append(" mCid=").append(mCid)
.append(" mArfcn=").append(mArfcn)
.append(" mBsic=").append("0x").append(Integer.toHexString(mBsic))
.append(" mMcc=").append(mMccStr)
.append(" mMnc=").append(mMncStr)
.append(" mAlphaLong=").append(mAlphaLong)
.append(" mAlphaShort=").append(mAlphaShort)
.append("}").toString();
}
/** Implement the Parcelable interface */
@Override
public void writeToParcel(Parcel dest, int flags) {
if (DBG) log("writeToParcel(Parcel, int): " + toString());
super.writeToParcel(dest, CellInfo.TYPE_GSM);
dest.writeInt(mLac);
dest.writeInt(mCid);
dest.writeInt(mArfcn);
dest.writeInt(mBsic);
}
/** Construct from Parcel, type has already been processed */
private CellIdentityGsm(Parcel in) {
super(TAG, CellInfo.TYPE_GSM, in);
mLac = in.readInt();
mCid = in.readInt();
mArfcn = in.readInt();
mBsic = in.readInt();
if (DBG) log(toString());
}
/** Implement the Parcelable interface */
@SuppressWarnings("hiding")
public static final Creator<CellIdentityGsm> CREATOR =
new Creator<CellIdentityGsm>() {
@Override
public CellIdentityGsm createFromParcel(Parcel in) {
in.readInt(); // skip
return createFromParcelBody(in);
}
@Override
public CellIdentityGsm[] newArray(int size) {
return new CellIdentityGsm[size];
}
};
/** @hide */
protected static CellIdentityGsm createFromParcelBody(Parcel in) {
return new CellIdentityGsm(in);
}
}