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using Xmpp;
using Gee;
using Qlite;
using Dino.Entities;
namespace Dino {
public class MessageStorage : StreamInteractionModule, Object {
public static ModuleIdentity<MessageStorage> IDENTITY = new ModuleIdentity<MessageStorage>("message_cache");
public string id { get { return IDENTITY.id; } }
private StreamInteractor stream_interactor;
private Database db;
private WeakMap<int, Message> messages_by_db_id = new WeakMap<int, Message>();
private HashMap<Conversation, WeakMap<string, Message>> messages_by_stanza_id = new HashMap<Conversation, WeakMap<string, Message>>(Conversation.hash_func, Conversation.equals_func);
private HashMap<Conversation, WeakMap<string, Message>> messages_by_server_id = new HashMap<Conversation, WeakMap<string, Message>>(Conversation.hash_func, Conversation.equals_func);
// This is to keep the last 300 messages such that we don't have to recreate the newest ones all the time
private LinkedList<Message> message_refs = new LinkedList<Message>();
public static void start(StreamInteractor stream_interactor, Database db) {
MessageStorage m = new MessageStorage(stream_interactor, db);
stream_interactor.add_module(m);
}
private MessageStorage(StreamInteractor stream_interactor, Database db) {
this.stream_interactor = stream_interactor;
this.db = db;
}
public void add_message(Message message, Conversation conversation) {
message.persist(db);
cache_message(message, conversation);
}
public Gee.List<Message> get_messages(Conversation conversation, int count = 50) {
var query = db.message.select()
.with(db.message.account_id, "=", conversation.account.id)
.with(db.message.counterpart_id, "=", db.get_jid_id(conversation.counterpart))
.with(db.message.type_, "=", (int) Util.get_message_type_for_conversation(conversation))
.order_by(db.message.time, "DESC")
.outer_join_with(db.message_correction, db.message_correction.message_id, db.message.id)
.limit(count);
Gee.List<Message> ret = new LinkedList<Message>(Message.equals_func);
foreach (Row row in query) {
Message? message = messages_by_db_id[row[db.message.id]];
if (message == null) {
message = create_message_from_row(row, conversation);
}
ret.insert(0, message);
}
return ret;
}
public Message? get_last_message(Conversation conversation) {
Gee.List<Message> messages = get_messages(conversation, 1);
if (messages.size > 0) {
return messages[0];
}
return null;
}
public Gee.List<MessageItem> get_messages_before_message(Conversation? conversation, DateTime before, int id, int count = 20) {
Gee.List<Message> db_messages = db.get_messages(conversation.counterpart, conversation.account, Util.get_message_type_for_conversation(conversation), count, before, null, id);
Gee.List<MessageItem> ret = new ArrayList<MessageItem>();
foreach (Message message in db_messages) {
ret.add(new MessageItem(message, conversation, -1));
}
return ret;
}
public Gee.List<MessageItem> get_messages_after_message(Conversation? conversation, DateTime after, int id, int count = 20) {
Gee.List<Message> db_messages = db.get_messages(conversation.counterpart, conversation.account, Util.get_message_type_for_conversation(conversation), count, null, after, id);
Gee.List<MessageItem> ret = new ArrayList<MessageItem>();
foreach (Message message in db_messages) {
ret.add(new MessageItem(message, conversation, -1));
}
return ret;
}
public Message? get_message_by_id(int id, Conversation conversation) {
Message? message = messages_by_db_id[id];
if (message != null) {
return message;
}
RowOption row_option = db.message.select().with(db.message.id, "=", id)
.outer_join_with(db.message_correction, db.message_correction.message_id, db.message.id)
.row();
return create_message_from_row_opt(row_option, conversation);
}
public Message? get_message_by_stanza_id(string stanza_id, Conversation conversation) {
if (messages_by_stanza_id.has_key(conversation)) {
Message? message = messages_by_stanza_id[conversation][stanza_id];
if (message != null) {
return message;
}
}
var query = db.message.select()
.with(db.message.account_id, "=", conversation.account.id)
.with(db.message.counterpart_id, "=", db.get_jid_id(conversation.counterpart))
.with(db.message.type_, "=", (int) Util.get_message_type_for_conversation(conversation))
.with(db.message.stanza_id, "=", stanza_id)
.order_by(db.message.time, "DESC")
.outer_join_with(db.message_correction, db.message_correction.message_id, db.message.id);
if (conversation.counterpart.resourcepart == null) {
query.with_null(db.message.counterpart_resource);
} else {
query.with(db.message.counterpart_resource, "=", conversation.counterpart.resourcepart);
}
RowOption row_option = query.single().row();
return create_message_from_row_opt(row_option, conversation);
}
public Message? get_message_by_server_id(string server_id, Conversation conversation) {
if (messages_by_server_id.has_key(conversation)) {
Message? message = messages_by_server_id[conversation][server_id];
if (message != null) {
return message;
}
}
var query = db.message.select()
.with(db.message.account_id, "=", conversation.account.id)
.with(db.message.counterpart_id, "=", db.get_jid_id(conversation.counterpart))
.with(db.message.type_, "=", (int) Util.get_message_type_for_conversation(conversation))
.with(db.message.server_id, "=", server_id)
.order_by(db.message.time, "DESC")
.outer_join_with(db.message_correction, db.message_correction.message_id, db.message.id);
if (conversation.counterpart.resourcepart == null) {
query.with_null(db.message.counterpart_resource);
} else {
query.with(db.message.counterpart_resource, "=", conversation.counterpart.resourcepart);
}
RowOption row_option = query.single().row();
return create_message_from_row_opt(row_option, conversation);
}
private Message? create_message_from_row_opt(RowOption row_option, Conversation conversation) {
if (!row_option.is_present()) return null;
return create_message_from_row(row_option.inner, conversation);
}
private Message? create_message_from_row(Row row, Conversation conversation) {
try {
Message message = new Message.from_row(db, row);
cache_message(message, conversation);
return message;
} catch (InvalidJidError e) {
warning("Got message with invalid Jid: %s", e.message);
}
return null;
}
private void cache_message(Message message, Conversation conversation) {
messages_by_db_id[message.id] = message;
if (message.stanza_id != null) {
if (!messages_by_stanza_id.has_key(conversation)) {
messages_by_stanza_id[conversation] = new WeakMap<string, Message>();
}
messages_by_stanza_id[conversation][message.stanza_id] = message;
}
if (message.server_id != null) {
if (!messages_by_server_id.has_key(conversation)) {
messages_by_server_id[conversation] = new WeakMap<string, Message>();
}
messages_by_server_id[conversation][message.server_id] = message;
}
message_refs.insert(0, message);
if (message_refs.size > 300) {
message_refs.remove_at(message_refs.size - 1);
}
}
}
}
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