//

// GetMetadataForFile.m

// VisualJSONImporter

//

// Created by 2012 youknowone.org on 12. 6. 4..

// Copyright (c) 2012 youknowone.org. All rights reserved.

//

#include <CoreFoundation/CoreFoundation.h>

#import <CoreData/CoreData.h>

#import "MySpotlightImporter.h"

Boolean GetMetadataForFile(void *thisInterface, CFMutableDictionaryRef attributes, CFStringRef contentTypeUTI, CFStringRef pathToFile);

//==============================================================================

//

// Get metadata attributes from document files

//

// The purpose of this function is to extract useful information from the

// file formats for your document, and set the values into the attribute

// dictionary for Spotlight to include.

//

//==============================================================================

Boolean GetMetadataForFile(void *thisInterface, CFMutableDictionaryRef attributes, CFStringRef contentTypeUTI, CFStringRef pathToFile)

{

// Pull any available metadata from the file at the specified path

// Return the attribute keys and attribute values in the dict

// Return TRUE if successful, FALSE if there was no data provided

// The path could point to either a Core Data store file in which

// case we import the store's metadata, or it could point to a Core

// Data external record file for a specific record instances

Boolean ok = FALSE;

@autoreleasepool {

NSError *error = nil;

if ([(__bridge NSString *)contentTypeUTI isEqualToString:@"YOUR_STORE_FILE_UTI"]) {

// import from store file metadata

// Create the URL, then attempt to get the meta-data from the store

NSURL *url = [NSURL fileURLWithPath:(__bridge NSString *)pathToFile];

NSDictionary *metadata = [NSPersistentStoreCoordinator metadataForPersistentStoreOfType:nil URL:url error:&error];

// If there is no error, add the info

if (error == NULL) {

// Get the information you are interested in from the dictionary

// "YOUR_INFO" should be replaced by key(s) you are interested in

NSObject *contentToIndex = [metadata objectForKey:@"YOUR_INFO"];

if (contentToIndex != nil) {

// Add the metadata to the text content for indexing

[(__bridge NSMutableDictionary *)attributes setObject:contentToIndex forKey:(NSString *)kMDItemTextContent];

ok = TRUE;

}

}

} else if ([(__bridge NSString *)contentTypeUTI isEqualToString:@"YOUR_EXTERNAL_RECORD_UTI"]) {

// import from an external record file

MySpotlightImporter *importer = [[[MySpotlightImporter alloc] init] autorelease];

ok = [importer importFileAtPath:(__bridge NSString *)pathToFile attributes:(__bridge NSMutableDictionary *)attributes error:&error];

}

}

// Return the status

return ok;

}