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Code Issues Releases Wiki Activity

Queries in Database now go through a custom function executeQuery which throws better (read: informative) Exceptions.

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This commit is contained in:
Fabian Schlenz 2018-04-11 06:14:55 +02:00
parent 1ff540977e
commit b199dc335f
1 changed files with 24 additions and 15 deletions
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39
src/main/kotlin/de/fabianonline/telegram_backup/Database.kt
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@ -84,7 +84,7 @@ class Database constructor(val file_base: String, val user_manager: UserManager)
try {
val missing = LinkedList<Int>()
val max = getTopMessageID()
val rs = stmt.executeQuery("SELECT message_id FROM messages WHERE source_type IN ('group', 'dialog') ORDER BY id")
val rs = executeQuery("SELECT message_id FROM messages WHERE source_type IN ('group', 'dialog') ORDER BY id")
rs.next()
var id = rs.getInt(1)
for (i in 1..max) {
@ -114,7 +114,7 @@ class Database constructor(val file_base: String, val user_manager: UserManager)
val list = LinkedList<TLMessage?>()
var query = "SELECT data FROM messages WHERE has_media=1 ORDER BY id"
if (limit > 0) query += " LIMIT ${limit} OFFSET ${offset}"
val rs = stmt.executeQuery(query)
val rs = executeQuery(query)
while (rs.next()) {
list.add(bytesToTLMessage(rs.getBytes(1)))
}
@ -136,7 +136,7 @@ class Database constructor(val file_base: String, val user_manager: UserManager)
fun getMessageSourceTypeWithCount(): HashMap<String, Int> {
val map = HashMap<String, Int>()
try {
val rs = stmt.executeQuery("SELECT COUNT(id), source_type FROM messages GROUP BY source_type ORDER BY source_type")
val rs = executeQuery("SELECT COUNT(id), source_type FROM messages GROUP BY source_type ORDER BY source_type")
while (rs.next()) {
val source_type = rs.getString(2) ?: "null"
map.put("count.messages.source_type.${source_type}", rs.getInt(1))
@ -151,7 +151,7 @@ class Database constructor(val file_base: String, val user_manager: UserManager)
fun getMessageApiLayerWithCount(): HashMap<String, Int> {
val map = HashMap<String, Int>()
try {
val rs = stmt.executeQuery("SELECT COUNT(id), api_layer FROM messages GROUP BY api_layer ORDER BY api_layer")
val rs = executeQuery("SELECT COUNT(id), api_layer FROM messages GROUP BY api_layer ORDER BY api_layer")
while (rs.next()) {
var layer = rs.getInt(2)
map.put("count.messages.api_layer.$layer", rs.getInt(1))
@ -172,7 +172,7 @@ class Database constructor(val file_base: String, val user_manager: UserManager)
fun getListOfChatsForExport(): LinkedList<Chat> {
val list = LinkedList<Chat>()
val rs = stmt.executeQuery("SELECT chats.id, chats.name, COUNT(messages.id) as c " +
val rs = executeQuery("SELECT chats.id, chats.name, COUNT(messages.id) as c " +
"FROM chats, messages WHERE messages.source_type IN('group', 'supergroup', 'channel') AND messages.source_id=chats.id " +
"GROUP BY chats.id ORDER BY c DESC")
while (rs.next()) {
@ -185,7 +185,7 @@ class Database constructor(val file_base: String, val user_manager: UserManager)
fun getListOfDialogsForExport(): LinkedList<Dialog> {
val list = LinkedList<Dialog>()
val rs = stmt.executeQuery(
val rs = executeQuery(
"SELECT users.id, first_name, last_name, username, COUNT(messages.id) as c " +
"FROM users, messages WHERE messages.source_type='dialog' AND messages.source_id=users.id " +
"GROUP BY users.id ORDER BY c DESC")
@ -229,8 +229,17 @@ class Database constructor(val file_base: String, val user_manager: UserManager)
ps.close()
}
fun executeQuery(query: String): ResultSet {
logger.trace("Query: {}", query)
try {
return stmt.executeQuery(query)
} catch (e: SQLException) {
throw RuntimeException("An SQL error happened. Query: ${query} Error message: ${e.message}", e)
}
}
fun queryInt(query: String): Int {
val rs = stmt.executeQuery(query)
val rs = executeQuery(query)
rs.next()
val result = rs.getInt(1)
rs.close()
@ -238,7 +247,7 @@ class Database constructor(val file_base: String, val user_manager: UserManager)
}
fun queryString(query: String): String {
val rs = stmt.executeQuery(query)
val rs = executeQuery(query)
rs.next()
val result = rs.getString(1)
rs.close()
@ -247,7 +256,7 @@ class Database constructor(val file_base: String, val user_manager: UserManager)
fun queryStringMap(query: String): Map<String, String> {
val map = mutableMapOf<String, String>()
val rs = stmt.executeQuery(query)
val rs = executeQuery(query)
while(rs.next()) {
map.put(rs.getString(1), rs.getString(2))
}
@ -519,7 +528,7 @@ class Database constructor(val file_base: String, val user_manager: UserManager)
fun getIdsFromQuery(query: String): LinkedList<Int> {
val list = LinkedList<Int>()
val rs = stmt.executeQuery(query)
val rs = executeQuery(query)
while (rs.next()) {
list.add(rs.getInt(1))
}
@ -529,7 +538,7 @@ class Database constructor(val file_base: String, val user_manager: UserManager)
fun getMessageTypesWithCount(c: AbstractChat): HashMap<String, Int> {
val map = HashMap<String, Int>()
val rs = stmt.executeQuery("SELECT message_type, COUNT(message_id) FROM messages WHERE " + c.query + " GROUP BY message_type")
val rs = executeQuery("SELECT message_type, COUNT(message_id) FROM messages WHERE " + c.query + " GROUP BY message_type")
while (rs.next()) {
map.put("count.messages.type." + rs.getString(1), rs.getInt(2))
}
@ -540,7 +549,7 @@ class Database constructor(val file_base: String, val user_manager: UserManager)
fun getMessageMediaTypesWithCount(c: AbstractChat): HashMap<String, Int> {
val map = HashMap<String, Int>()
var count = 0
val rs = stmt.executeQuery("SELECT media_type, COUNT(message_id) FROM messages WHERE " + c.query + " GROUP BY media_type")
val rs = executeQuery("SELECT media_type, COUNT(message_id) FROM messages WHERE " + c.query + " GROUP BY media_type")
while (rs.next()) {
var type = rs.getString(1) ?: "null"
if (type != "null") count += rs.getInt(2)
@ -558,7 +567,7 @@ class Database constructor(val file_base: String, val user_manager: UserManager)
// Set a default value for 'me' to fix the charts for channels - cause I
// possibly didn't send any messages there.
map.put("authors.count.me", 0)
val rs = stmt.executeQuery("SELECT users.id, users.first_name, users.last_name, users.username, COUNT(messages.id) " +
val rs = executeQuery("SELECT users.id, users.first_name, users.last_name, users.username, COUNT(messages.id) " +
"FROM messages " +
"LEFT JOIN users ON users.id=messages.sender_id " +
"WHERE " + c.query + " GROUP BY sender_id")
@ -590,7 +599,7 @@ class Database constructor(val file_base: String, val user_manager: UserManager)
fun getMessageTimesMatrix(c: AbstractChat): Array<IntArray> {
val result = Array(7) { IntArray(24) }
val rs = stmt.executeQuery("SELECT STRFTIME('%w', time, 'unixepoch') as DAY, " +
val rs = executeQuery("SELECT STRFTIME('%w', time, 'unixepoch') as DAY, " +
"STRFTIME('%H', time, 'unixepoch') AS hour, " +
"COUNT(id) FROM messages WHERE " + c.query + " GROUP BY hour, day " +
"ORDER BY hour, day")
@ -616,7 +625,7 @@ class Database constructor(val file_base: String, val user_manager: UserManager)
query = query + " LIMIT ${limit} OFFSET ${offset}"
}
val rs = stmt.executeQuery(query)
val rs = executeQuery(query)
val format_time = SimpleDateFormat("HH:mm:ss")
val format_date = SimpleDateFormat("d MMM yy")