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GTLQuery.m
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GTLQuery.m
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/* Copyright (c) 2011 Google Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
//
// GTLQuery.m
//
#include <objc/runtime.h>
#import "GTLQuery.h"
#import "GTLRuntimeCommon.h"
#import "GTLUtilities.h"
@interface GTLQuery () <GTLRuntimeCommon>
@end
@implementation GTLQuery
// Implementation Note: bodyObject could be done as a dynamic property and map
// it to the key "resource". But we expose the object on the ServiceTicket
// for developers, and so sending it through the plumbing already in the
// parameters and outside of that gets into a grey area. For requests sent
// via this class, we don't need to touch the JSON, but for developers that
// have to use the lower level apis for something we'd need to know to add
// it to the JSON.
@synthesize methodName = methodName_,
JSON = json_,
bodyObject = bodyObject_,
requestID = requestID_,
uploadParameters = uploadParameters_,
urlQueryParameters = urlQueryParameters_,
additionalHTTPHeaders = additionalHTTPHeaders_,
expectedObjectClass = expectedObjectClass_,
shouldSkipAuthorization = skipAuthorization_;
#if NS_BLOCKS_AVAILABLE
@synthesize completionBlock = completionBlock_;
#endif
+ (id)queryWithMethodName:(NSString *)methodName {
return [[[self alloc] initWithMethodName:methodName] autorelease];
}
- (id)initWithMethodName:(NSString *)methodName {
self = [super init];
if (self) {
requestID_ = [[[self class] nextRequestID] retain];
methodName_ = [methodName copy];
if ([methodName_ length] == 0) {
[self release];
self = nil;
}
}
return self;
}
- (void)dealloc {
[methodName_ release];
[json_ release];
[bodyObject_ release];
[childCache_ release];
[requestID_ release];
[uploadParameters_ release];
[urlQueryParameters_ release];
[additionalHTTPHeaders_ release];
#if NS_BLOCKS_AVAILABLE
[completionBlock_ release];
#endif
[super dealloc];
}
- (id)copyWithZone:(NSZone *)zone {
GTLQuery *query =
[[[self class] allocWithZone:zone] initWithMethodName:self.methodName];
if ([json_ count] > 0) {
// Deep copy the parameters
CFPropertyListRef ref = CFPropertyListCreateDeepCopy(kCFAllocatorDefault,
json_, kCFPropertyListMutableContainers);
query.JSON = [NSMakeCollectable(ref) autorelease];
}
query.bodyObject = self.bodyObject;
query.requestID = self.requestID;
query.uploadParameters = self.uploadParameters;
query.urlQueryParameters = self.urlQueryParameters;
query.additionalHTTPHeaders = self.additionalHTTPHeaders;
query.expectedObjectClass = self.expectedObjectClass;
query.shouldSkipAuthorization = self.shouldSkipAuthorization;
#if NS_BLOCKS_AVAILABLE
query.completionBlock = self.completionBlock;
#endif
return query;
}
- (NSString *)description {
NSArray *keys = [self.JSON allKeys];
NSArray *params = [keys sortedArrayUsingSelector:@selector(compare:)];
NSString *paramsSummary = @"";
if ([params count] > 0) {
paramsSummary = [NSString stringWithFormat:@" params:(%@)",
[params componentsJoinedByString:@","]];
}
keys = [self.urlQueryParameters allKeys];
NSArray *urlQParams = [keys sortedArrayUsingSelector:@selector(compare:)];
NSString *urlQParamsSummary = @"";
if ([urlQParams count] > 0) {
urlQParamsSummary = [NSString stringWithFormat:@" urlQParams:(%@)",
[urlQParams componentsJoinedByString:@","]];
}
GTLObject *bodyObj = self.bodyObject;
NSString *bodyObjSummary = @"";
if (bodyObj != nil) {
bodyObjSummary = [NSString stringWithFormat:@" bodyObject:%@", [bodyObj class]];
}
NSString *uploadStr = @"";
GTLUploadParameters *uploadParams = self.uploadParameters;
if (uploadParams) {
uploadStr = [NSString stringWithFormat:@" %@", uploadParams];
}
return [NSString stringWithFormat:@"%@ %p: {method:%@%@%@%@%@}",
[self class], self, self.methodName,
paramsSummary, urlQParamsSummary, bodyObjSummary, uploadStr];
}
- (void)setCustomParameter:(id)obj forKey:(NSString *)key {
[self setJSONValue:obj forKey:key];
}
- (BOOL)isBatchQuery {
return NO;
}
- (void)executionDidStop {
#if NS_BLOCKS_AVAILABLE
self.completionBlock = nil;
#endif
}
+ (NSString *)nextRequestID {
static unsigned long lastRequestID = 0;
NSString *result;
@synchronized([GTLQuery class]) {
++lastRequestID;
result = [NSString stringWithFormat:@"gtl_%lu",
(unsigned long) lastRequestID];
}
return result;
}
#pragma mark GTLRuntimeCommon Support
- (void)setJSONValue:(id)obj forKey:(NSString *)key {
NSMutableDictionary *dict = self.JSON;
if (dict == nil && obj != nil) {
dict = [NSMutableDictionary dictionaryWithCapacity:1];
self.JSON = dict;
}
[dict setValue:obj forKey:key];
}
- (id)JSONValueForKey:(NSString *)key {
id obj = [self.JSON objectForKey:key];
return obj;
}
// There is no property for childCache_ as there shouldn't be KVC/KVO
// support for it, it's an implementation detail.
- (void)setCacheChild:(id)obj forKey:(NSString *)key {
if (childCache_ == nil && obj != nil) {
childCache_ =
[[NSMutableDictionary alloc] initWithObjectsAndKeys:obj, key, nil];
} else {
[childCache_ setValue:obj forKey:key];
}
}
- (id)cacheChildForKey:(NSString *)key {
id obj = [childCache_ objectForKey:key];
return obj;
}
#pragma mark Methods for Subclasses to Override
+ (NSDictionary *)parameterNameMap {
return nil;
}
+ (NSDictionary *)arrayPropertyToClassMap {
return nil;
}
#pragma mark Runtime Utilities
static NSMutableDictionary *gParameterNameMapCache = nil;
static NSMutableDictionary *gArrayPropertyToClassMapCache = nil;
+ (void)initialize {
// note that initialize is guaranteed by the runtime to be called in a
// thread-safe manner
if (gParameterNameMapCache == nil) {
gParameterNameMapCache = [GTLUtilities newStaticDictionary];
}
if (gArrayPropertyToClassMapCache == nil) {
gArrayPropertyToClassMapCache = [GTLUtilities newStaticDictionary];
}
}
+ (NSDictionary *)propertyToJSONKeyMapForClass:(Class<GTLRuntimeCommon>)aClass {
NSDictionary *resultMap =
[GTLUtilities mergedClassDictionaryForSelector:@selector(parameterNameMap)
startClass:aClass
ancestorClass:[GTLQuery class]
cache:gParameterNameMapCache];
return resultMap;
}
+ (NSDictionary *)arrayPropertyToClassMapForClass:(Class<GTLRuntimeCommon>)aClass {
NSDictionary *resultMap =
[GTLUtilities mergedClassDictionaryForSelector:@selector(arrayPropertyToClassMap)
startClass:aClass
ancestorClass:[GTLQuery class]
cache:gArrayPropertyToClassMapCache];
return resultMap;
}
#pragma mark Runtime Support
- (NSDictionary *)surrogates {
// Stub method just needed for RumtimeCommon, query doesn't use surrogates.
return nil;
}
+ (Class<GTLRuntimeCommon>)ancestorClass {
return [GTLQuery class];
}
+ (BOOL)resolveInstanceMethod:(SEL)sel {
BOOL resolved = [GTLRuntimeCommon resolveInstanceMethod:sel onClass:self];
if (resolved)
return YES;
return [super resolveInstanceMethod:sel];
}
@end