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NuMongoDB.m
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NuMongoDB.m
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#import "NuMongoDB.h"
#import "NuBSON.h"
@interface NuBSON (Private)
- (NuBSON *) initWithBSON:(bson) b;
@end
@implementation NuMongoDBCursor
- (NuMongoDBCursor *) initWithCursor:(mongo_cursor *) c
{
if (self = [super init]) {
cursor = c;
}
return self;
}
- (mongo_cursor *) cursor
{
return cursor;
}
- (BOOL) next
{
return mongo_cursor_next(cursor);
}
- (bson) current
{
return cursor->current;
}
- (NuBSON *) currentBSON
{
return [[[NuBSON alloc] initWithBSON:cursor->current] autorelease];
}
- (NSDictionary *) currentObject
{
return [[self currentBSON] dictionaryValue];
}
- (void) dealloc
{
mongo_cursor_destroy(cursor);
[super dealloc];
}
- (NSMutableArray *) arrayValue
{
NSMutableArray *result = [NSMutableArray array];
while([self next]) {
[result addObject:[self currentObject]];
}
return result;
}
- (NSMutableArray *) arrayValueWithLimit:(int) limit
{
int count = 0;
NSMutableArray *result = [NSMutableArray array];
while([self next] && (count < limit)) {
[result addObject:[self currentObject]];
count++;
}
return result;
}
@end
@implementation NuMongoDB
- (int) connectWithOptions:(NSDictionary *) options
{
id host = options ? [options objectForKey:@"host"] : nil;
if (host) {
strncpy(opts.host, [host cStringUsingEncoding:NSUTF8StringEncoding], 255);
opts.host[254] = '\0';
}
else {
strncpy(opts.host, "127.0.0.1", 255);
opts.host[254] = '\0';
}
id port = options ? [options objectForKey:@"port"] : nil;
if (port) {
opts.port = [port intValue];
}
else {
opts.port = 27017;
}
return mongo_connect(conn, &opts);
}
- (void) addUser:(NSString *) user withPassword:(NSString *) password forDatabase:(NSString *) database
{
mongo_cmd_add_user(conn, [database cStringUsingEncoding:NSUTF8StringEncoding],
[user cStringUsingEncoding:NSUTF8StringEncoding],
[password cStringUsingEncoding:NSUTF8StringEncoding]);
}
- (BOOL) authenticateUser:(NSString *) user withPassword:(NSString *) password forDatabase:(NSString *) database
{
return mongo_cmd_authenticate(conn, [database cStringUsingEncoding:NSUTF8StringEncoding],
[user cStringUsingEncoding:NSUTF8StringEncoding],
[password cStringUsingEncoding:NSUTF8StringEncoding]);
}
- (NuMongoDBCursor *) find:(id) query inCollection:(NSString *) collection
{
bson *b = bson_for_object(query);
mongo_cursor *cursor = mongo_find(conn, [collection cStringUsingEncoding:NSUTF8StringEncoding], b, 0, 0, 0, 0 );
return [[[NuMongoDBCursor alloc] initWithCursor:cursor] autorelease];
}
- (NuMongoDBCursor *) find:(id) query inCollection:(NSString *) collection returningFields:(id) fields numberToReturn:(int) nToReturn numberToSkip:(int) nToSkip
{
bson *b = bson_for_object(query);
bson *f = bson_for_object(fields);
mongo_cursor *cursor = mongo_find(conn, [collection cStringUsingEncoding:NSUTF8StringEncoding], b, f, nToReturn, nToSkip, 0 );
return [[[NuMongoDBCursor alloc] initWithCursor:cursor] autorelease];
}
- (NSMutableArray *) findArray:(id) query inCollection:(NSString *) collection
{
NuMongoDBCursor *cursor = [self find:query inCollection:collection];
return [cursor arrayValue];
}
- (NSMutableArray *) findArray:(id) query inCollection:(NSString *) collection returningFields:(id) fields numberToReturn:(int) nToReturn numberToSkip:(int) nToSkip
{
NuMongoDBCursor *cursor = [self find:query inCollection:collection returningFields:fields numberToReturn:nToReturn numberToSkip:nToSkip];
return [cursor arrayValueWithLimit:nToReturn];
}
- (NSMutableDictionary *) findOne:(id) query inCollection:(NSString *) collection
{
bson *b = bson_for_object(query);
bson bsonResult;
bson_bool_t result = mongo_find_one(conn, [collection cStringUsingEncoding:NSUTF8StringEncoding], b, 0, &bsonResult);
return result ? [[[[NuBSON alloc] initWithBSON:bsonResult] autorelease] dictionaryValue] : nil;
}
- (void) insertObject:(id) insert intoCollection:(NSString *) collection
{
bson *b = bson_for_object(insert);
if (b) {
mongo_insert(conn, [collection cStringUsingEncoding:NSUTF8StringEncoding], b);
}
else {
NSLog(@"incomplete insert: insert must not be nil.");
}
}
- (void) updateObject:(id) update inCollection:(NSString *) collection
withCondition:(id) condition insertIfNecessary:(BOOL) insertIfNecessary updateMultipleEntries:(BOOL) updateMultipleEntries
{
bson *bupdate = bson_for_object(update);
bson *bcondition = bson_for_object(condition);
if (bupdate && bcondition) {
mongo_update(conn, [collection cStringUsingEncoding:NSUTF8StringEncoding],
bcondition,
bupdate,
(insertIfNecessary ? MONGO_UPDATE_UPSERT : 0) + (updateMultipleEntries ? MONGO_UPDATE_MULTI : 0));
}
else {
NSLog(@"incomplete update: update and condition must not be nil.");
}
}
- (void) removeWithCondition:(id) condition fromCollection:(NSString *) collection
{
bson *bcondition = bson_for_object(condition);
mongo_remove(conn, [collection cStringUsingEncoding:NSUTF8StringEncoding], bcondition);
}
- (int) countWithCondition:(id) condition inCollection:(NSString *) collection inDatabase:(NSString *) database
{
bson *bcondition = bson_for_object(condition);
return mongo_count(conn, [database cStringUsingEncoding:NSUTF8StringEncoding], [collection cStringUsingEncoding:NSUTF8StringEncoding], bcondition);
}
- (id) runCommand:(id) command inDatabase:(NSString *) database
{
bson *bcommand = bson_for_object(command);
bson bsonResult;
bson_bool_t result = mongo_run_command(conn, [database cStringUsingEncoding:NSUTF8StringEncoding], bcommand, &bsonResult);
return result ? [[[[NuBSON alloc] initWithBSON:bsonResult] autorelease] dictionaryValue] : nil;
}
- (BOOL) dropDatabase:(NSString *) database
{
return mongo_cmd_drop_db(conn, [database cStringUsingEncoding:NSUTF8StringEncoding]);
}
- (BOOL) dropCollection:(NSString *) collection inDatabase:(NSString *) database
{
return mongo_cmd_drop_collection(conn,
[database cStringUsingEncoding:NSUTF8StringEncoding],
[collection cStringUsingEncoding:NSUTF8StringEncoding],
NULL);
}
- (id) getCollectionNamesInDatabase:(NSString *) database
{
NSArray *names = [self findArray:nil inCollection:[database stringByAppendingString:@".system.namespaces"]];
NSMutableArray *result = [NSMutableArray array];
for (int i = 0; i < [names count]; i++) {
id name = [[[names objectAtIndex:i] objectForKey:@"name"]
stringByReplacingOccurrencesOfString:[database stringByAppendingString:@"."]
withString:@""];
NSRange match = [name rangeOfString:@".$_id_"];
if (match.location != NSNotFound) {
continue;
}
match = [name rangeOfString:@"system.indexes"];
if (match.location != NSNotFound) {
continue;
}
[result addObject:name];
}
return result;
}
- (BOOL) ensureCollection:(NSString *) collection hasIndex:(NSObject *) key withOptions:(int) options
{
bson output;
return mongo_create_index(conn,
[collection cStringUsingEncoding:NSUTF8StringEncoding],
bson_for_object(key),
options,
&output);
}
- (void) close
{
mongo_destroy(conn );
}
@end