kopia lustrzana https://github.com/N0BOY/FT8CN
276 wiersze
12 KiB
Java
Executable File
276 wiersze
12 KiB
Java
Executable File
package com.bg7yoz.ft8cn.callsign;
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/**
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* 用于呼号归属地查询的数据库操作，数据库采用内存方式。来源是CTY.DAT
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* @author BG7YOZ
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* 2023-03-20
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*/
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import android.annotation.SuppressLint;
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import android.content.ContentValues;
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import android.content.Context;
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import android.database.Cursor;
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import android.database.sqlite.SQLiteDatabase;
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import android.database.sqlite.SQLiteOpenHelper;
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import android.os.AsyncTask;
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import android.util.Log;
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import androidx.annotation.Nullable;
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import com.bg7yoz.ft8cn.Ft8Message;
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import com.bg7yoz.ft8cn.GeneralVariables;
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import com.google.android.gms.maps.model.LatLng;
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import java.util.ArrayList;
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import java.util.Set;
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public class CallsignDatabase extends SQLiteOpenHelper {
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private static final String TAG = "CallsignDatabase";
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@SuppressLint("StaticFieldLeak")
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private static CallsignDatabase instance;
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private final Context context;
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private SQLiteDatabase db;
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public static CallsignDatabase getInstance(@Nullable Context context, @Nullable String databaseName, int version) {
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if (instance == null) {
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instance = new CallsignDatabase(context, databaseName, null, version);
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}
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return instance;
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}
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public CallsignDatabase(@Nullable Context context, @Nullable String name
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, @Nullable SQLiteDatabase.CursorFactory factory, int version) {
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super(context, name, factory, version);
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this.context = context;
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//链接数据库，如果实体库不存在，就会调用onCreate方法，在onCreate方法中初始化数据库
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db = this.getWritableDatabase();
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}
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public SQLiteDatabase getDb() {
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return db;
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}
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/**
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* 当实体数据库不存在时，会调用该方法。可在这个地方创建数据，并添加文件
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*
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* @param sqLiteDatabase 需要连接的数据库
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*/
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@Override
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public void onCreate(SQLiteDatabase sqLiteDatabase) {
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Log.d(TAG, "Create database.");
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db = sqLiteDatabase;//把数据库链接保存下来
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createTables();//创建数据表
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new InitDatabase(context, db).execute();//导入数据
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}
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@Override
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public void onUpgrade(SQLiteDatabase sqLiteDatabase, int i, int i1) {
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}
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private void createTables() {
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try {
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db.execSQL("CREATE TABLE countries (\n" +
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"id INTEGER NOT NULL PRIMARY KEY,\n" +
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"CountryNameEn TEXT,\n" +
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"CountryNameCN TEXT,\n" +
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"CQZone INTEGER,\n" +
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"ITUZone INTEGER,\n" +
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"Continent TEXT,\n" +
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"Latitude REAL,\n" +
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"Longitude REAL,\n" +
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"GMT_offset REAL,\n" +
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"DXCC TEXT)");
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db.execSQL("CREATE INDEX countries_id_IDX ON countries (id)");
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db.execSQL("CREATE TABLE callsigns (countryId INTEGER NOT NULL,callsign TEXT)");
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db.execSQL("CREATE INDEX callsigns_callsign_IDX ON callsigns (callsign)");
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} catch (Exception e) {
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Log.e(TAG, e.getMessage());
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}
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}
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//查呼号的归属地
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public void getCallsignInformation(String callsign, OnAfterQueryCallsignLocation afterQueryCallsignLocation) {
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new QueryCallsignInformation(db, callsign, afterQueryCallsignLocation).execute();
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}
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public CallsignInfo getCallInfo(String callsign) {
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return getCallsignInfo(db, callsign);
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}
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/**
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* 更新消息中的位置及经纬度信息
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*
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* @param messages 消息列表
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*/
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public static void getMessagesLocation(SQLiteDatabase db, ArrayList<Ft8Message> messages) {
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for (Ft8Message msg : messages) {
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if (msg.i3==0&&msg.n3==0) continue;//如果是自由文本，就不查了
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CallsignInfo fromCallsignInfo = getCallsignInfo(db,
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msg.callsignFrom.replace("<","").replace(">",""));
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if (fromCallsignInfo != null) {
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msg.fromDxcc = !GeneralVariables.getDxccByPrefix(fromCallsignInfo.DXCC);
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msg.fromItu = !GeneralVariables.getItuZoneById(fromCallsignInfo.ITUZone);
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msg.fromCq = !GeneralVariables.getCqZoneById(fromCallsignInfo.CQZone);
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if (GeneralVariables.isChina) {
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msg.fromWhere = fromCallsignInfo.CountryNameCN;
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} else {
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msg.fromWhere = fromCallsignInfo.CountryNameEn;
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}
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msg.fromLatLng = new LatLng(fromCallsignInfo.Latitude, fromCallsignInfo.Longitude * -1);
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}
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if (msg.checkIsCQ() || msg.getCallsignTo().contains("...")) {//CQ就不查了
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continue;
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}
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CallsignInfo toCallsignInfo = getCallsignInfo(db,
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msg.callsignTo.replace("<","").replace(">",""));
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if (toCallsignInfo != null) {
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msg.toDxcc = !GeneralVariables.getDxccByPrefix(toCallsignInfo.DXCC);
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msg.toItu = !GeneralVariables.getItuZoneById(toCallsignInfo.ITUZone);
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msg.toCq = !GeneralVariables.getCqZoneById(toCallsignInfo.CQZone);
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if (GeneralVariables.isChina) {
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msg.toWhere = toCallsignInfo.CountryNameCN;
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} else {
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msg.toWhere = toCallsignInfo.CountryNameEn;
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}
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msg.toLatLng = new LatLng(toCallsignInfo.Latitude, toCallsignInfo.Longitude*-1);
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}
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}
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}
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@SuppressLint("Range")
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private static CallsignInfo getCallsignInfo(SQLiteDatabase db, String callsign) {
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CallsignInfo callsignInfo = null;
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String querySQL = "select a.*,b.* from callsigns as a left join countries as b on a.countryId =b.id \n" +
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"WHERE (SUBSTR(?,1,LENGTH(callsign))=callsign) OR (callsign=\"=\"||?)\n" +
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"order by LENGTH(callsign) desc\n" +
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"LIMIT 1";
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Cursor cursor = db.rawQuery(querySQL, new String[]{callsign.toUpperCase(), callsign.toUpperCase()});
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if (cursor.moveToFirst()) {
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callsignInfo = new CallsignInfo(callsign.toUpperCase()
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, cursor.getString(cursor.getColumnIndex("CountryNameEn"))
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, cursor.getString(cursor.getColumnIndex("CountryNameCN"))
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, cursor.getInt(cursor.getColumnIndex("CQZone"))
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, cursor.getInt(cursor.getColumnIndex("ITUZone"))
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, cursor.getString(cursor.getColumnIndex("Continent"))
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, cursor.getFloat(cursor.getColumnIndex("Latitude"))
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, cursor.getFloat(cursor.getColumnIndex("Longitude"))
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, cursor.getFloat(cursor.getColumnIndex("GMT_offset"))
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, cursor.getString(cursor.getColumnIndex("DXCC")));
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}
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cursor.close();
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return callsignInfo;
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}
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static class QueryCallsignInformation extends AsyncTask<Void, Void, Void> {
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private final SQLiteDatabase db;
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private final String sqlParameter;
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private final OnAfterQueryCallsignLocation afterQueryCallsignLocation;
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public QueryCallsignInformation(SQLiteDatabase db, String sqlParameter, OnAfterQueryCallsignLocation afterQueryCallsignLocation) {
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this.db = db;
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this.sqlParameter = sqlParameter;
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this.afterQueryCallsignLocation = afterQueryCallsignLocation;
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}
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@SuppressLint("Range")
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@Override
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protected Void doInBackground(Void... voids) {
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// String querySQL = "select a.*,b.* from callsigns as a left join countries as b on a.countryId =b.id \n" +
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// "WHERE (SUBSTR(?,1,LENGTH(callsign))=callsign) OR (callsign=\"=\"||?)\n" +
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// "order by LENGTH(callsign) desc\n" +
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// "LIMIT 1";
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//
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// Cursor cursor = db.rawQuery(querySQL, new String[]{sqlParameter.toUpperCase(), sqlParameter.toUpperCase()});
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// if (cursor.moveToFirst()) {
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// CallsignInfo callsignInfo = new CallsignInfo();
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// callsignInfo.CallSign = sqlParameter.toUpperCase();
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// callsignInfo.CountryNameEn = cursor.getString(cursor.getColumnIndex("CountryNameEn"));
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// callsignInfo.CountryNameCN = cursor.getString(cursor.getColumnIndex("CountryNameCN"));
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// callsignInfo.CQZone = cursor.getInt(cursor.getColumnIndex("CQZone"));
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// callsignInfo.ITUZone = cursor.getInt(cursor.getColumnIndex("ITUZone"));
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// callsignInfo.Continent = cursor.getString(cursor.getColumnIndex("Continent"));
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// callsignInfo.Latitude = cursor.getFloat(cursor.getColumnIndex("Latitude"));
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// callsignInfo.Longitude = cursor.getFloat(cursor.getColumnIndex("Longitude"));
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// callsignInfo.GMT_offset = cursor.getFloat(cursor.getColumnIndex("GMT_offset"));
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// callsignInfo.DXCC = cursor.getString(cursor.getColumnIndex("DXCC"));
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// if (afterQueryCallsignLocation!=null){
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// afterQueryCallsignLocation.doOnAfterQueryCallsignLocation(callsignInfo);
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// }
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// }
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// cursor.close();
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CallsignInfo callsignInfo = getCallsignInfo(db, sqlParameter);
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if (callsignInfo != null && afterQueryCallsignLocation != null) {
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afterQueryCallsignLocation.doOnAfterQueryCallsignLocation(callsignInfo);
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}
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return null;
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}
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}
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static class InitDatabase extends AsyncTask<Void, Void, Void> {
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@SuppressLint("StaticFieldLeak")
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private final Context context;
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private final SQLiteDatabase db;
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public InitDatabase(Context context, SQLiteDatabase db) {
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this.context = context;
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this.db = db;
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}
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@Override
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protected Void doInBackground(Void... voids) {
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Log.d(TAG, "开始导入呼号位置数据...");
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String insertCountriesSQL = "INSERT INTO countries (id,CountryNameEn,CountryNameCN,CQZone" +
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",ITUZone,Continent,Latitude,Longitude,GMT_offset,DXCC)\n" +
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"VALUES(?,?,?,?,?,?,?,?,?,?)";
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ArrayList<CallsignInfo> callsignInfos =
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CallsignFileOperation.getCallSingInfoFromFile(context);
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ContentValues values = new ContentValues();
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for (int i = 0; i < callsignInfos.size(); i++) {
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try {
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//把国家和地区数据写进表中，id用于关联呼号
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db.execSQL(insertCountriesSQL, new Object[]{
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i,//id号
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callsignInfos.get(i).CountryNameEn,
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callsignInfos.get(i).CountryNameCN,
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callsignInfos.get(i).CQZone,
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callsignInfos.get(i).ITUZone,
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callsignInfos.get(i).Continent,
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callsignInfos.get(i).Latitude,
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callsignInfos.get(i).Longitude,
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callsignInfos.get(i).GMT_offset,
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callsignInfos.get(i).DXCC});
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Set<String> calls = CallsignFileOperation.getCallsigns(callsignInfos.get(i).CallSign);
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for (String s : calls
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) {
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values.put("countryId", i);
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values.put("callsign", s);
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db.insert("callsigns", null, values);
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values.clear();
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}
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} catch (Exception e) {
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Log.e(TAG, "错误：" + e.getMessage());
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}
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}
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Log.d(TAG, "呼号位置数据导入完毕！");
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return null;
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}
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}
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}
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