Import GingerCal 1.0 source
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package org.gingercal;
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import java.util.ArrayList;
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import java.util.LinkedHashMap;
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import java.util.List;
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import java.util.Map;
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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 org.gingercal.Model.Cal;
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import org.gingercal.Model.Ev;
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/** Local cache so the agenda works offline and the phone doesn't refetch on every launch. */
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public class Db extends SQLiteOpenHelper implements Model.Store {
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private static Db instance;
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public static synchronized Db get(Context c) {
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if (instance == null) instance = new Db(c.getApplicationContext());
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return instance;
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}
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private Db(Context c) {
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super(c, "gingercal.db", null, 1);
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}
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@Override
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public void onCreate(SQLiteDatabase db) {
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db.execSQL("CREATE TABLE cals (href TEXT PRIMARY KEY, name TEXT, color INTEGER, enabled INTEGER,"
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+ " writable INTEGER, ctag TEXT, synced INTEGER)");
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db.execSQL("CREATE TABLE events (_id INTEGER PRIMARY KEY AUTOINCREMENT, cal TEXT, href TEXT, etag TEXT,"
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+ " uid TEXT, title TEXT, location TEXT, descr TEXT, dtstart INTEGER, dtend INTEGER,"
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+ " allday INTEGER, recurring INTEGER)");
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db.execSQL("CREATE INDEX ev_start ON events(dtstart)");
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db.execSQL("CREATE INDEX ev_cal ON events(cal)");
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}
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@Override
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public void onUpgrade(SQLiteDatabase db, int from, int to) {
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db.execSQL("DROP TABLE IF EXISTS events");
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db.execSQL("DROP TABLE IF EXISTS cals");
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onCreate(db);
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}
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// ------------------------------------------------------------ calendars
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public synchronized Map<String, Cal> calendars() {
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Map<String, Cal> m = new LinkedHashMap<String, Cal>();
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Cursor c = getReadableDatabase().rawQuery(
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"SELECT href, name, color, enabled, writable, ctag, synced FROM cals ORDER BY name", null);
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try {
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while (c.moveToNext()) {
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Cal x = new Cal();
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x.href = c.getString(0);
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x.name = c.getString(1);
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x.color = c.getInt(2);
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x.enabled = c.getInt(3) != 0;
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x.writable = c.getInt(4) != 0;
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x.ctag = c.getString(5);
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x.synced = c.getLong(6);
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m.put(x.href, x);
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}
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} finally {
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c.close();
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}
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return m;
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}
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public List<Cal> calendarList() {
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return new ArrayList<Cal>(calendars().values());
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}
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public synchronized void saveCalendar(Cal c) {
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getWritableDatabase().execSQL("INSERT OR REPLACE INTO cals (href, name, color, enabled, writable, ctag, synced)"
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+ " VALUES (?,?,?,?,?,?,?)", new Object[] {c.href, c.name, Integer.valueOf(c.color),
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Integer.valueOf(c.enabled ? 1 : 0), Integer.valueOf(c.writable ? 1 : 0), c.ctag, Long.valueOf(c.synced)});
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}
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public synchronized void setEnabled(String href, boolean on) {
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// reset ctag/synced so the next sync refetches it
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getWritableDatabase().execSQL("UPDATE cals SET enabled=?, ctag='', synced=0 WHERE href=?",
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new Object[] {Integer.valueOf(on ? 1 : 0), href});
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if (!on) getWritableDatabase().execSQL("DELETE FROM events WHERE cal=?", new Object[] {href});
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}
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public synchronized void deleteCalendar(String href) {
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SQLiteDatabase db = getWritableDatabase();
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db.execSQL("DELETE FROM events WHERE cal=?", new Object[] {href});
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db.execSQL("DELETE FROM cals WHERE href=?", new Object[] {href});
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}
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public synchronized void forgetSyncState() {
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getWritableDatabase().execSQL("UPDATE cals SET ctag='', synced=0");
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}
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public synchronized void clearAll() {
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SQLiteDatabase db = getWritableDatabase();
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db.execSQL("DELETE FROM events");
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db.execSQL("DELETE FROM cals");
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}
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// --------------------------------------------------------------- events
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public synchronized void replaceEvents(String cal, List<Ev> evs) {
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SQLiteDatabase db = getWritableDatabase();
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db.beginTransaction();
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try {
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db.execSQL("DELETE FROM events WHERE cal=?", new Object[] {cal});
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for (Ev e : evs) {
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db.execSQL("INSERT INTO events (cal, href, etag, uid, title, location, descr, dtstart, dtend, allday,"
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+ " recurring) VALUES (?,?,?,?,?,?,?,?,?,?,?)", new Object[] {cal, e.href, e.etag, e.uid,
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e.title, e.location, e.descr, Long.valueOf(e.start), Long.valueOf(e.end),
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Integer.valueOf(e.allDay ? 1 : 0), Integer.valueOf(e.recurring ? 1 : 0)});
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}
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db.setTransactionSuccessful();
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} finally {
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db.endTransaction();
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}
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}
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static final String EV_COLS = "e._id, e.cal, e.href, e.etag, e.uid, e.title, e.location, e.descr, e.dtstart,"
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+ " e.dtend, e.allday, e.recurring, c.color, c.writable";
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static Ev read(Cursor c) {
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Ev e = new Ev();
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e.id = c.getLong(0);
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e.cal = c.getString(1);
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e.href = c.getString(2);
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e.etag = c.getString(3);
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e.uid = c.getString(4);
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e.title = c.getString(5);
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e.location = c.getString(6);
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e.descr = c.getString(7);
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e.start = c.getLong(8);
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e.end = c.getLong(9);
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e.allDay = c.getInt(10) != 0;
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e.recurring = c.getInt(11) != 0;
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e.color = c.getInt(12);
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e.writable = c.getInt(13) != 0;
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return e;
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}
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List<Ev> query(String where, String[] args) {
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List<Ev> out = new ArrayList<Ev>();
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Cursor c = getReadableDatabase().rawQuery("SELECT " + EV_COLS + " FROM events e JOIN cals c ON c.href = e.cal"
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+ " WHERE c.enabled = 1 AND (" + where + ") ORDER BY e.dtstart, e.allday DESC, e.title", args);
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try {
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while (c.moveToNext()) out.add(read(c));
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} finally {
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c.close();
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}
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return out;
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}
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/** Everything still running or starting after `from`. */
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public synchronized List<Ev> agenda(long from, long to) {
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return query("e.dtend > ? AND e.dtstart < ? OR (e.dtstart = e.dtend AND e.dtstart >= ? AND e.dtstart < ?)",
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new String[] {String.valueOf(from), String.valueOf(to), String.valueOf(from), String.valueOf(to)});
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}
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public synchronized Ev event(long id) {
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List<Ev> l = query("e._id = ?", new String[] {String.valueOf(id)});
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return l.isEmpty() ? null : l.get(0);
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}
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/** Timed events starting in (after, until]. */
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public synchronized List<Ev> startingBetween(long after, long until) {
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return query("e.allday = 0 AND e.dtstart > ? AND e.dtstart <= ?",
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new String[] {String.valueOf(after), String.valueOf(until)});
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}
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public synchronized long nextStartAfter(long after) {
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Cursor c = getReadableDatabase().rawQuery("SELECT MIN(e.dtstart) FROM events e JOIN cals c ON c.href = e.cal"
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+ " WHERE c.enabled = 1 AND e.allday = 0 AND e.dtstart > ?", new String[] {String.valueOf(after)});
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try {
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if (c.moveToNext() && !c.isNull(0)) return c.getLong(0);
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return -1;
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} finally {
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c.close();
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}
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}
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public synchronized int count() {
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Cursor c = getReadableDatabase().rawQuery("SELECT COUNT(*) FROM events", null);
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try {
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return c.moveToNext() ? c.getInt(0) : 0;
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} finally {
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c.close();
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}
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}
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}
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