Steven Liu | 6e3c0dc | 2014-06-30 14:31:50 -0500 | [diff] [blame] | 1 | /* |
| 2 | ** |
| 3 | ** Copyright (C) 2014, The Android Open Source Project |
| 4 | ** |
| 5 | ** Licensed under the Apache License, Version 2.0 (the "License"); |
| 6 | ** you may not use this file except in compliance with the License. |
| 7 | ** You may obtain a copy of the License at |
| 8 | ** |
| 9 | ** http://www.apache.org/licenses/LICENSE-2.0 |
| 10 | ** |
| 11 | ** Unless required by applicable law or agreed to in writing, software |
| 12 | ** distributed under the License is distributed on an "AS IS" BASIS, |
| 13 | ** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 14 | ** See the License for the specific language governing permissions and |
| 15 | ** limitations under the License. |
| 16 | */ |
| 17 | |
| 18 | /* |
| 19 | * This class is used to create, load tables for HBPCD |
| 20 | * HBPCD means 'Handset Based Plus Code Dialing', for CDMA network, most of network |
| 21 | * couldn't handle international dialing number with '+', it need to be converted |
| 22 | * to a IDD (International Direct Dialing) number, and some CDMA network won't |
| 23 | * broadcast operator numeric, we need CDMA system ID and timezone etc. information |
| 24 | * to get right MCC part of numeric, MNC part of numeric has no way to get in this |
| 25 | * case, but for HBPCD, the MCC is enough. |
| 26 | * |
| 27 | * Table TABLE_MCC_LOOKUP_TABLE |
| 28 | * This table has country name, country code, time zones for each MCC |
| 29 | * |
| 30 | * Table TABLE_MCC_IDD |
| 31 | * This table has the IDDs for each MCC, some countries have multiple IDDs. |
| 32 | * |
| 33 | * Table TABLE_MCC_SID_RANGE |
| 34 | * This table are SIDs assigned to each MCC |
| 35 | * |
| 36 | * Table TABLE_MCC_SID_CONFLICT |
| 37 | * This table shows those SIDs are assigned to more than 1 MCC entry, |
| 38 | * if the SID is here, it means the SID couldn't be matched to a single MCC, |
| 39 | * it need to check the time zone and SID in TABLE_MCC_LOOKUP_TABLE to get |
| 40 | * right MCC. |
| 41 | * |
| 42 | * Table TABLE_ARBITRARY_MCC_SID_MATCH |
| 43 | * The SID listed in this table technically have operators in multiple MCC, |
| 44 | * but conveniently only have *active* operators in a single MCC allowing a |
| 45 | * unique SID->MCC lookup. Lookup by Timezone however would be complicatedi |
| 46 | * as there will be multiple matches, and those matched entries have same |
| 47 | * time zone, which can not tell which MCC is right. Conventionaly it is known |
| 48 | * that SID is used only by the *active* operators in that MCC. |
| 49 | * |
| 50 | * Table TABLE_NANP_AREA_CODE |
| 51 | * This table has NANP(North America Number Planning) area code, this is used |
| 52 | * to check if a dialing number is a NANP number. |
| 53 | */ |
| 54 | |
| 55 | package com.android.providers.telephony; |
| 56 | |
| 57 | import android.content.ContentValues; |
| 58 | import android.content.Context; |
| 59 | import android.content.res.Resources; |
| 60 | import android.content.res.XmlResourceParser; |
| 61 | import android.database.Cursor; |
| 62 | import android.database.SQLException; |
| 63 | import android.database.sqlite.SQLiteDatabase; |
| 64 | import android.database.sqlite.SQLiteOpenHelper; |
| 65 | import android.database.sqlite.SQLiteQueryBuilder; |
| 66 | import android.util.Log; |
| 67 | import android.util.Xml; |
| 68 | import com.android.internal.util.XmlUtils; |
| 69 | |
| 70 | import org.xmlpull.v1.XmlPullParser; |
| 71 | import org.xmlpull.v1.XmlPullParserException; |
| 72 | |
| 73 | import java.io.IOException; |
| 74 | |
| 75 | import com.android.internal.telephony.HbpcdLookup; |
| 76 | import com.android.internal.telephony.HbpcdLookup.MccIdd; |
| 77 | import com.android.internal.telephony.HbpcdLookup.MccLookup; |
| 78 | import com.android.internal.telephony.HbpcdLookup.MccSidConflicts; |
| 79 | import com.android.internal.telephony.HbpcdLookup.MccSidRange; |
| 80 | import com.android.internal.telephony.HbpcdLookup.ArbitraryMccSidMatch; |
| 81 | import com.android.internal.telephony.HbpcdLookup.NanpAreaCode; |
| 82 | |
| 83 | public class HbpcdLookupDatabaseHelper extends SQLiteOpenHelper { |
| 84 | private static final String TAG = "HbpcdLockupDatabaseHelper"; |
| 85 | private static final boolean DBG = true; |
| 86 | |
| 87 | private static final String DATABASE_NAME = "HbpcdLookup.db"; |
| 88 | private static final int DATABASE_VERSION = 1; |
| 89 | |
| 90 | // Context to access resources with |
| 91 | private Context mContext; |
| 92 | |
| 93 | /** |
| 94 | * DatabaseHelper helper class for loading apns into a database. |
| 95 | * |
| 96 | * @param context of the user. |
| 97 | */ |
| 98 | public HbpcdLookupDatabaseHelper(Context context) { |
| 99 | super(context, DATABASE_NAME, null, DATABASE_VERSION); |
| 100 | |
| 101 | mContext = context; |
| 102 | } |
| 103 | |
| 104 | @Override |
| 105 | public void onCreate(SQLiteDatabase db) { |
| 106 | //set up the database schema |
| 107 | // 1 MCC may has more IDDs |
| 108 | db.execSQL("CREATE TABLE " + HbpcdLookupProvider.TABLE_MCC_IDD + |
| 109 | "(_id INTEGER PRIMARY KEY," + |
| 110 | "MCC INTEGER," + |
| 111 | "IDD TEXT);"); |
| 112 | |
| 113 | db.execSQL("CREATE TABLE " + HbpcdLookupProvider.TABLE_MCC_LOOKUP_TABLE + |
| 114 | "(_id INTEGER PRIMARY KEY," + |
| 115 | "MCC INTEGER," + |
| 116 | "Country_Code TEXT," + |
| 117 | "Country_Name TEXT," + |
| 118 | "NDD TEXT," + |
| 119 | "NANPS BOOLEAN," + |
| 120 | "GMT_Offset_Low REAL," + |
| 121 | "GMT_Offset_High REAL," + |
| 122 | "GMT_DST_Low REAL," + |
| 123 | "GMT_DST_High REAL);"); |
| 124 | |
| 125 | db.execSQL("CREATE TABLE " + HbpcdLookupProvider.TABLE_MCC_SID_CONFLICT + |
| 126 | "(_id INTEGER PRIMARY KEY," + |
| 127 | "MCC INTEGER," + |
| 128 | "SID_Conflict INTEGER);"); |
| 129 | |
| 130 | db.execSQL("CREATE TABLE " + HbpcdLookupProvider.TABLE_MCC_SID_RANGE + |
| 131 | "(_id INTEGER PRIMARY KEY," + |
| 132 | "MCC INTEGER," + |
| 133 | "SID_Range_Low INTEGER," + |
| 134 | "SID_Range_High INTEGER);"); |
| 135 | |
| 136 | db.execSQL("CREATE TABLE " + HbpcdLookupProvider.TABLE_NANP_AREA_CODE + |
| 137 | "(_id INTEGER PRIMARY KEY," + |
| 138 | "AREA_CODE INTEGER UNIQUE);"); |
| 139 | |
| 140 | db.execSQL("CREATE TABLE " + HbpcdLookupProvider.TABLE_ARBITRARY_MCC_SID_MATCH + |
| 141 | "(_id INTEGER PRIMARY KEY," + |
| 142 | "MCC INTEGER," + |
| 143 | "SID INTEGER UNIQUE);"); |
| 144 | |
| 145 | initDatabase(db); |
| 146 | } |
| 147 | |
| 148 | @Override |
| 149 | public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) { |
| 150 | // do nothing |
| 151 | } |
| 152 | |
| 153 | private void initDatabase (SQLiteDatabase db) { |
| 154 | // Read internal data from xml |
| 155 | Resources r = mContext.getResources(); |
| 156 | XmlResourceParser parser = r.getXml(R.xml.hbpcd_lookup_tables); |
| 157 | |
| 158 | if (parser == null) { |
| 159 | Log.e (TAG, "error to load the HBPCD resource"); |
| 160 | } else { |
| 161 | try { |
| 162 | db.beginTransaction(); |
| 163 | XmlUtils.beginDocument(parser, "hbpcd_info"); |
| 164 | |
| 165 | int eventType = parser.getEventType(); |
| 166 | String tagName = parser.getName(); |
| 167 | |
| 168 | while (eventType != XmlPullParser.END_DOCUMENT) { |
| 169 | if (eventType == XmlPullParser.START_TAG |
| 170 | && tagName.equalsIgnoreCase("table")) { |
| 171 | String tableName = parser.getAttributeValue(null, "name"); |
| 172 | loadTable(db, parser, tableName); |
| 173 | } |
| 174 | parser.next(); |
| 175 | eventType = parser.getEventType(); |
| 176 | tagName = parser.getName(); |
| 177 | } |
| 178 | db.setTransactionSuccessful(); |
| 179 | } catch (XmlPullParserException e) { |
| 180 | Log.e (TAG, "Got XmlPullParserException when load hbpcd info"); |
| 181 | } catch (IOException e) { |
| 182 | Log.e (TAG, "Got IOException when load hbpcd info"); |
| 183 | } catch (SQLException e) { |
| 184 | Log.e (TAG, "Got SQLException when load hbpcd info"); |
| 185 | } finally { |
| 186 | db.endTransaction(); |
| 187 | parser.close(); |
| 188 | } |
| 189 | } |
| 190 | } |
| 191 | |
| 192 | private void loadTable(SQLiteDatabase db, XmlPullParser parser, String tableName) |
| 193 | throws XmlPullParserException, IOException { |
| 194 | int eventType = parser.getEventType(); |
| 195 | String tagName = parser.getName(); |
| 196 | while (!(eventType == XmlPullParser.END_TAG |
| 197 | && tagName.equalsIgnoreCase("table"))) { |
| 198 | ContentValues row = null; |
| 199 | if (tableName.equalsIgnoreCase(HbpcdLookupProvider.TABLE_MCC_IDD)) { |
| 200 | row = getTableMccIddRow(parser); |
| 201 | } else if (tableName.equalsIgnoreCase(HbpcdLookupProvider.TABLE_MCC_LOOKUP_TABLE)) { |
| 202 | row = getTableMccLookupTableRow(parser); |
| 203 | } else if (tableName.equalsIgnoreCase(HbpcdLookupProvider.TABLE_MCC_SID_CONFLICT)) { |
| 204 | row = getTableMccSidConflictRow(parser); |
| 205 | } else if (tableName.equalsIgnoreCase(HbpcdLookupProvider.TABLE_MCC_SID_RANGE)) { |
| 206 | row = getTableMccSidRangeRow(parser); |
| 207 | } else if (tableName.equalsIgnoreCase(HbpcdLookupProvider.TABLE_NANP_AREA_CODE)) { |
| 208 | row = getTableNanpAreaCodeRow(parser); |
| 209 | } else if (tableName.equalsIgnoreCase( |
| 210 | HbpcdLookupProvider.TABLE_ARBITRARY_MCC_SID_MATCH)) { |
| 211 | row = getTableArbitraryMccSidMatch(parser); |
| 212 | } else { |
| 213 | Log.e(TAG, "unrecognized table name" + tableName); |
| 214 | break; |
| 215 | } |
| 216 | if (row != null) { |
| 217 | db.insert(tableName, null, row); |
| 218 | } |
| 219 | parser.next(); |
| 220 | eventType = parser.getEventType(); |
| 221 | tagName = parser.getName(); |
| 222 | } |
| 223 | } |
| 224 | |
| 225 | private ContentValues getTableMccIddRow(XmlPullParser parser) |
| 226 | throws XmlPullParserException, IOException { |
| 227 | int eventType = parser.getEventType(); |
| 228 | String tagName = parser.getName(); |
| 229 | ContentValues row = new ContentValues(); |
| 230 | |
| 231 | while (!(eventType == XmlPullParser.END_TAG && tagName.equalsIgnoreCase("row"))) { |
| 232 | if (eventType == XmlPullParser.START_TAG) { |
| 233 | if (tagName.equalsIgnoreCase(MccIdd.MCC)) { |
| 234 | row.put(MccIdd.MCC, Integer.parseInt(parser.nextText())); |
| 235 | } else if (tagName.equalsIgnoreCase(MccIdd.IDD)) { |
| 236 | row.put(MccIdd.IDD, parser.nextText()); |
| 237 | } |
| 238 | } |
| 239 | parser.next(); |
| 240 | eventType = parser.getEventType(); |
| 241 | tagName = parser.getName(); |
| 242 | } |
| 243 | return row; |
| 244 | } |
| 245 | |
| 246 | private ContentValues getTableMccLookupTableRow(XmlPullParser parser) |
| 247 | throws XmlPullParserException, IOException { |
| 248 | int eventType = parser.getEventType(); |
| 249 | String tagName = parser.getName(); |
| 250 | ContentValues row = new ContentValues(); |
| 251 | |
| 252 | while (!(eventType == XmlPullParser.END_TAG && tagName.equalsIgnoreCase("row"))) { |
| 253 | if (eventType == XmlPullParser.START_TAG) { |
| 254 | if (tagName.equalsIgnoreCase(MccLookup.MCC)) { |
| 255 | row.put(MccLookup.MCC, Integer.parseInt(parser.nextText())); |
| 256 | } else if (tagName.equalsIgnoreCase(MccLookup.COUNTRY_CODE)) { |
| 257 | row.put(MccLookup.COUNTRY_CODE, Integer.parseInt(parser.nextText())); |
| 258 | } else if (tagName.equalsIgnoreCase(MccLookup.COUNTRY_NAME)) { |
| 259 | row.put(MccLookup.COUNTRY_NAME, parser.nextText()); |
| 260 | } else if (tagName.equalsIgnoreCase(MccLookup.NDD)) { |
| 261 | row.put(MccLookup.NDD, parser.nextText()); |
| 262 | } else if (tagName.equalsIgnoreCase(MccLookup.NANPS)) { |
| 263 | row.put(MccLookup.NANPS, Boolean.parseBoolean(parser.nextText())); |
| 264 | } else if (tagName.equalsIgnoreCase(MccLookup.GMT_OFFSET_LOW)) { |
| 265 | row.put(MccLookup.GMT_OFFSET_LOW, Float.parseFloat(parser.nextText())); |
| 266 | } else if (tagName.equalsIgnoreCase(MccLookup.GMT_OFFSET_HIGH)) { |
| 267 | row.put(MccLookup.GMT_OFFSET_HIGH, Float.parseFloat(parser.nextText())); |
| 268 | } else if (tagName.equalsIgnoreCase(MccLookup.GMT_DST_LOW)) { |
| 269 | row.put(MccLookup.GMT_DST_LOW, Float.parseFloat(parser.nextText())); |
| 270 | } else if (tagName.equalsIgnoreCase(MccLookup.GMT_DST_HIGH)) { |
| 271 | row.put(MccLookup.GMT_DST_HIGH, Float.parseFloat(parser.nextText())); |
| 272 | } |
| 273 | } |
| 274 | parser.next(); |
| 275 | eventType = parser.getEventType(); |
| 276 | tagName = parser.getName(); |
| 277 | } |
| 278 | return row; |
| 279 | } |
| 280 | |
| 281 | private ContentValues getTableMccSidConflictRow(XmlPullParser parser) |
| 282 | throws XmlPullParserException, IOException { |
| 283 | int eventType = parser.getEventType(); |
| 284 | String tagName = parser.getName(); |
| 285 | ContentValues row = new ContentValues(); |
| 286 | |
| 287 | while (!(eventType == XmlPullParser.END_TAG && tagName.equalsIgnoreCase("row"))) { |
| 288 | if (eventType == XmlPullParser.START_TAG) { |
| 289 | if (tagName.equalsIgnoreCase(MccSidConflicts.MCC)) { |
| 290 | row.put(MccSidConflicts.MCC, Integer.parseInt(parser.nextText())); |
| 291 | } else if (tagName.equalsIgnoreCase(MccSidConflicts.SID_CONFLICT)) { |
| 292 | row.put(MccSidConflicts.SID_CONFLICT, Integer.parseInt(parser.nextText())); |
| 293 | } |
| 294 | } |
| 295 | parser.next(); |
| 296 | eventType = parser.getEventType(); |
| 297 | tagName = parser.getName(); |
| 298 | } |
| 299 | return row; |
| 300 | } |
| 301 | |
| 302 | private ContentValues getTableMccSidRangeRow(XmlPullParser parser) |
| 303 | throws XmlPullParserException, IOException { |
| 304 | int eventType = parser.getEventType(); |
| 305 | String tagName = parser.getName(); |
| 306 | ContentValues row = new ContentValues(); |
| 307 | |
| 308 | while (!(eventType == XmlPullParser.END_TAG && tagName.equalsIgnoreCase("row"))) { |
| 309 | if (eventType == XmlPullParser.START_TAG) { |
| 310 | if (tagName.equalsIgnoreCase(MccSidRange.MCC)) { |
| 311 | row.put(MccSidRange.MCC, Integer.parseInt(parser.nextText())); |
| 312 | } else if (tagName.equalsIgnoreCase(MccSidRange.RANGE_LOW)) { |
| 313 | row.put(MccSidRange.RANGE_LOW, Integer.parseInt(parser.nextText())); |
| 314 | } else if (tagName.equalsIgnoreCase(MccSidRange.RANGE_HIGH)) { |
| 315 | row.put(MccSidRange.RANGE_HIGH, Integer.parseInt(parser.nextText())); |
| 316 | } |
| 317 | } |
| 318 | parser.next(); |
| 319 | eventType = parser.getEventType(); |
| 320 | tagName = parser.getName(); |
| 321 | } |
| 322 | return row; |
| 323 | } |
| 324 | |
| 325 | private ContentValues getTableNanpAreaCodeRow(XmlPullParser parser) |
| 326 | throws XmlPullParserException, IOException { |
| 327 | int eventType = parser.getEventType(); |
| 328 | String tagName = parser.getName(); |
| 329 | ContentValues row = new ContentValues(); |
| 330 | |
| 331 | while (!(eventType == XmlPullParser.END_TAG && tagName.equalsIgnoreCase("row"))) { |
| 332 | if (eventType == XmlPullParser.START_TAG) { |
| 333 | if (tagName.equalsIgnoreCase(NanpAreaCode.AREA_CODE)) { |
| 334 | row.put(NanpAreaCode.AREA_CODE, Integer.parseInt(parser.nextText())); |
| 335 | } |
| 336 | } |
| 337 | parser.next(); |
| 338 | eventType = parser.getEventType(); |
| 339 | tagName = parser.getName(); |
| 340 | } |
| 341 | return row; |
| 342 | } |
| 343 | |
| 344 | private ContentValues getTableArbitraryMccSidMatch(XmlPullParser parser) |
| 345 | throws XmlPullParserException, IOException { |
| 346 | int eventType = parser.getEventType(); |
| 347 | String tagName = parser.getName(); |
| 348 | ContentValues row = new ContentValues(); |
| 349 | |
| 350 | while (!(eventType == XmlPullParser.END_TAG && tagName.equalsIgnoreCase("row"))) { |
| 351 | if (eventType == XmlPullParser.START_TAG) { |
| 352 | if (tagName.equalsIgnoreCase(ArbitraryMccSidMatch.MCC)) { |
| 353 | row.put(ArbitraryMccSidMatch.MCC, Integer.parseInt(parser.nextText())); |
| 354 | } else if (tagName.equalsIgnoreCase(ArbitraryMccSidMatch.SID)) { |
| 355 | row.put(ArbitraryMccSidMatch.SID, Integer.parseInt(parser.nextText())); |
| 356 | } |
| 357 | } |
| 358 | parser.next(); |
| 359 | eventType = parser.getEventType(); |
| 360 | tagName = parser.getName(); |
| 361 | } |
| 362 | return row; |
| 363 | } |
| 364 | } |