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Move IosDatabase to Kotlin

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This commit is contained in:
Alinson S. Xavier
2019-06-09 13:16:07 -05:00
parent d96732b588
commit 046a7eab7f
16 changed files with 168 additions and 236 deletions
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140
ios/Application/Platform/IosDatabase.swift
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@@ -1,140 +0,0 @@
/*
* Copyright (C) 2016-2019 Álinson Santos Xavier <isoron@gmail.com>
*
* This file is part of Loop Habit Tracker.
*
* Loop Habit Tracker is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by the
* Free Software Foundation, either version 3 of the License, or (at your
* option) any later version.
*
* Loop Habit Tracker is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License along
* with this program. If not, see <http://www.gnu.org/licenses/>.
*/
import Foundation
import SQLite3
internal let SQLITE_STATIC = unsafeBitCast(0, to: sqlite3_destructor_type.self)
internal let SQLITE_TRANSIENT = unsafeBitCast(-1, to: sqlite3_destructor_type.self)
class IosPreparedStatement : NSObject, PreparedStatement {
var db: OpaquePointer
var statement: OpaquePointer
init(withStatement statement: OpaquePointer, withDb db: OpaquePointer) {
self.statement = statement
self.db = db
}
func step() -> StepResult {
let result = sqlite3_step(statement)
if result == SQLITE_ROW {
return StepResult.row
} else if result == SQLITE_DONE {
return StepResult.done
} else {
let errMsg = String(cString: sqlite3_errmsg(db)!)
fatalError("Database error: \(errMsg) (\(result))")
}
}
func getInt(index: Int32) -> Int32 {
return sqlite3_column_int(statement, index)
}
func getLong(index: Int32) -> Int64 {
return sqlite3_column_int64(statement, index)
}
func getText(index: Int32) -> String {
return String(cString: sqlite3_column_text(statement, index))
}
func getReal(index: Int32) -> Double {
return sqlite3_column_double(statement, index)
}
func bindInt(index: Int32, value: Int32) {
sqlite3_bind_int(statement, index + 1, value)
}
func bindText(index: Int32, value: String) {
sqlite3_bind_text(statement, index + 1, value, -1, SQLITE_TRANSIENT)
}
func bindReal(index: Int32, value: Double) {
sqlite3_bind_double(statement, index + 1, value)
}
func reset() {
sqlite3_reset(statement)
}
override func finalize() {
sqlite3_finalize(statement)
}
func bindLong(index: Int32, value: Int64) {
sqlite3_bind_int64(statement, index + 1, value)
}
}
class IosDatabase : NSObject, Database {
var db: OpaquePointer
var log: Log
init(withDb db: OpaquePointer, withLog log: Log) {
self.db = db
self.log = log
}
func prepareStatement(sql: String) -> PreparedStatement {
if sql.isEmpty {
fatalError("Provided SQL query is empty")
}
var statement : OpaquePointer?
let result = sqlite3_prepare_v2(db, sql, -1, &statement, nil)
if result == SQLITE_OK {
return IosPreparedStatement(withStatement: statement!, withDb: db)
} else {
let errMsg = String(cString: sqlite3_errmsg(db)!)
fatalError("Database error: \(errMsg)")
}
}
func close() {
sqlite3_close(db)
}
}
class IosDatabaseOpener : NSObject, DatabaseOpener {
var log: Log
init(withLog log: Log) {
self.log = log
}
func open(file: UserFile) -> Database {
let dbPath = (file as! IosFile).path
let version = String(cString: sqlite3_libversion())
log.info(tag: "IosDatabaseOpener", msg: "SQLite \(version)")
log.info(tag: "IosDatabaseOpener", msg: "Opening database: \(dbPath)")
var db: OpaquePointer?
let result = sqlite3_open(dbPath, &db)
if result == SQLITE_OK {
return IosDatabase(withDb: db!, withLog: log)
} else {
fatalError("Error opening database (code \(result))")
}
}
}