142 lines
3.4 KiB
Kotlin
142 lines
3.4 KiB
Kotlin
package jp.juggler.subwaytooter.table
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import android.content.ContentValues
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import android.database.sqlite.SQLiteDatabase
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import java.util.ArrayList
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import jp.juggler.subwaytooter.App1
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import jp.juggler.util.LogCategory
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object AcctSet : TableCompanion {
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private val log = LogCategory("AcctSet")
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private const val table = "acct_set"
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private const val COL_TIME_SAVE = "time_save"
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private const val COL_ACCT = "acct" //@who@host ascii文字の大文字小文字は(sqliteにより)同一視される
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private const val prefix_search_where = "$COL_ACCT like ? escape '$'"
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private val prefix_search_where_arg = object : ThreadLocal<Array<String?>>() {
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override fun initialValue() : Array<String?> {
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return arrayOfNulls(1)
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}
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}
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override fun onDBCreate(db : SQLiteDatabase) {
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log.d("onDBCreate!")
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db.execSQL(
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"create table if not exists " + table
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+ "(_id INTEGER PRIMARY KEY"
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+ "," + COL_TIME_SAVE + " integer not null"
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+ "," + COL_ACCT + " text not null"
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+ ")"
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)
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db.execSQL(
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"create unique index if not exists ${table}_acct on $table($COL_ACCT)"
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)
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db.execSQL(
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"create index if not exists ${table}_time on $table($COL_TIME_SAVE)"
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)
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}
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override fun onDBUpgrade(db : SQLiteDatabase, oldVersion : Int, newVersion : Int) {
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if(oldVersion < 7 && newVersion >= 7) {
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onDBCreate(db)
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}
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}
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fun deleteOld(now : Long) {
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try {
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// 古いデータを掃除する
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val expire = now - 86400000L * 365
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App1.database.delete(table, "$COL_TIME_SAVE<?", arrayOf(expire.toString()))
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} catch(ex : Throwable) {
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log.e(ex, "deleteOld failed.")
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}
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}
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fun saveList(now : Long, src_list : ArrayList<String?>, offset : Int, length : Int) {
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try {
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val cv = ContentValues()
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cv.put(COL_TIME_SAVE, now)
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var bOK = false
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val db = App1.database
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db.execSQL("BEGIN TRANSACTION")
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try {
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for(i in 0 until length) {
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val acct = src_list[i + offset] ?: continue
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cv.put(COL_ACCT, acct)
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db.replace(table, null, cv)
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}
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bOK = true
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} catch(ex : Throwable) {
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log.trace(ex)
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log.e(ex, "saveList failed.")
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}
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if(bOK) {
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db.execSQL("COMMIT TRANSACTION")
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} else {
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db.execSQL("ROLLBACK TRANSACTION")
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}
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} catch(ex : Throwable) {
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log.trace(ex)
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log.e(ex, "saveList failed.")
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}
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}
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private fun makePattern(src : String) : String {
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val sb = StringBuilder()
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var i = 0
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val ie = src.length
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while(i < ie) {
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val c = src[i]
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if(c == '%' || c == '_' || c == '$') {
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sb.append('$')
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}
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sb.append(c)
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++ i
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}
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// 前方一致検索にするため、末尾に%をつける
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sb.append('%')
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return sb.toString()
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}
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fun searchPrefix(prefix : String, limit : Int) : ArrayList<CharSequence> {
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try {
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val where_arg = prefix_search_where_arg.get() ?: arrayOfNulls<String?>(1)
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where_arg[0] = makePattern(prefix)
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App1.database.query(
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table,
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null,
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prefix_search_where,
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where_arg,
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null,
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null,
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"$COL_ACCT asc limit $limit"
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)
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.use { cursor ->
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val dst = ArrayList<CharSequence>(cursor.count)
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val idx_acct = cursor.getColumnIndex(COL_ACCT)
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while(cursor.moveToNext()) {
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dst.add(cursor.getString(idx_acct))
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}
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return dst
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}
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} catch(ex : Throwable) {
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log.trace(ex)
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log.e(ex, "searchPrefix failed.")
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}
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return ArrayList()
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}
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}
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