432 lines
17 KiB
Plaintext
432 lines
17 KiB
Plaintext
////////////////////////////////////////////////////////////////////////////
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//
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// Copyright 2015 Realm Inc.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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//
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////////////////////////////////////////////////////////////////////////////
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#import "RJSRealm.hpp"
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#import "RJSObject.hpp"
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#import "RJSResults.hpp"
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#import "RJSArray.hpp"
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#import "RJSSchema.hpp"
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#import "shared_realm.hpp"
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#import "object_accessor.hpp"
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#import "realm_delegate.hpp"
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#import <set>
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using namespace realm;
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class RJSRealmDelegate : public RealmDelegate {
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public:
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typedef std::shared_ptr<std::function<void(const std::string)>> NotificationFunction;
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void add_notification(NotificationFunction ¬ification) { m_notifications.insert(notification); }
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void remove_notification(NotificationFunction notification) { m_notifications.erase(notification); }
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void remove_all_notifications() { m_notifications.clear(); }
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std::set<NotificationFunction> m_notifications;
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virtual void changes_available() {
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for (NotificationFunction notification : m_notifications) {
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(*notification)("RefreshRequiredNotification");
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}
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}
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virtual void did_change(std::vector<ObserverState> const& observers,
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std::vector<void*> const& invalidated) {
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for (NotificationFunction notification : m_notifications) {
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(*notification)("DidChangeNotification");
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}
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}
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virtual std::vector<ObserverState> get_observed_rows() {
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return std::vector<ObserverState>();
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}
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virtual void will_change(std::vector<ObserverState> const& observers,
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std::vector<void*> const& invalidated) {
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}
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};
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std::string writeablePathForFile(const std::string &fileName) {
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#if TARGET_OS_IPHONE
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// On iOS the Documents directory isn't user-visible, so put files there
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NSString *path = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES)[0];
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#else
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// On OS X it is, so put files in Application Support. If we aren't running
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// in a sandbox, put it in a subdirectory based on the bundle identifier
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// to avoid accidentally sharing files between applications
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NSString *path = NSSearchPathForDirectoriesInDomains(NSApplicationSupportDirectory, NSUserDomainMask, YES)[0];
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if (![[NSProcessInfo processInfo] environment][@"APP_SANDBOX_CONTAINER_ID"]) {
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NSString *identifier = [[NSBundle mainBundle] bundleIdentifier];
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if ([identifier length] == 0) {
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identifier = [[[NSBundle mainBundle] executablePath] lastPathComponent];
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}
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path = [path stringByAppendingPathComponent:identifier];
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// create directory
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[[NSFileManager defaultManager] createDirectoryAtPath:path
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withIntermediateDirectories:YES
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attributes:nil
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error:nil];
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}
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#endif
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return std::string(path.UTF8String) + "/" + fileName;
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}
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static std::string s_defaultPath = writeablePathForFile("default.realm");
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std::string RJSDefaultPath() {
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return s_defaultPath;
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}
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void RJSSetDefaultPath(std::string path) {
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s_defaultPath = path;
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}
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static JSValueRef GetDefaultPath(JSContextRef ctx, JSObjectRef object, JSStringRef propertyName, JSValueRef* jsException) {
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return RJSValueForString(ctx, s_defaultPath);
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}
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static bool SetDefaultPath(JSContextRef ctx, JSObjectRef object, JSStringRef propertyName, JSValueRef value, JSValueRef* jsException) {
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try {
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s_defaultPath = RJSValidatedStringForValue(ctx, value, "defaultPath");
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}
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catch (std::exception &ex) {
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if (jsException) {
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*jsException = RJSMakeError(ctx, ex);
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}
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}
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return true;
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}
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JSObjectRef RealmConstructor(JSContextRef ctx, JSObjectRef constructor, size_t argumentCount, const JSValueRef arguments[], JSValueRef* jsException) {
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try {
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Realm::Config config;
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switch (argumentCount) {
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case 0:
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config.path = RJSDefaultPath();
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break;
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case 1: {
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JSValueRef value = arguments[0];
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if (JSValueIsString(ctx, value)) {
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config.path = RJSValidatedStringForValue(ctx, value, "path");
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break;
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}
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if (JSValueIsObject(ctx, value)) {
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JSObjectRef object = RJSValidatedValueToObject(ctx, value);
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static JSStringRef pathString = JSStringCreateWithUTF8CString("path");
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JSValueRef pathValue = RJSValidatedPropertyValue(ctx, object, pathString);
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if (!JSValueIsUndefined(ctx, pathValue)) {
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config.path = RJSValidatedStringForValue(ctx, pathValue, "path");
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}
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else {
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config.path = RJSDefaultPath();
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}
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static JSStringRef schemaString = JSStringCreateWithUTF8CString("schema");
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JSValueRef schemaValue = RJSValidatedPropertyValue(ctx, object, schemaString);
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if (!JSValueIsUndefined(ctx, schemaValue)) {
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config.schema = std::make_unique<Schema>(RJSParseSchema(ctx, RJSValidatedValueToObject(ctx, schemaValue)));
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}
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static JSStringRef schemaVersionString = JSStringCreateWithUTF8CString("schemaVersion");
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JSValueRef versionValue = RJSValidatedPropertyValue(ctx, object, schemaVersionString);
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if (JSValueIsNumber(ctx, versionValue)) {
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config.schema_version = RJSValidatedValueToNumber(ctx, versionValue);
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}
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else {
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config.schema_version = 0;
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}
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break;
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}
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}
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default:
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*jsException = RJSMakeError(ctx, "Invalid arguments when constructing 'Realm'");
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return NULL;
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}
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SharedRealm realm = Realm::get_shared_realm(config);
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if (!realm->m_delegate) {
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realm->m_delegate = std::make_unique<RJSRealmDelegate>();
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}
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return RJSWrapObject<SharedRealm *>(ctx, RJSRealmClass(), new SharedRealm(realm));
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}
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catch (std::exception &ex) {
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if (jsException) {
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*jsException = RJSMakeError(ctx, ex);
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}
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return NULL;
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}
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}
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JSClassRef RJSRealmConstructorClass() {
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JSClassDefinition realmConstructorDefinition = kJSClassDefinitionEmpty;
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realmConstructorDefinition.className = "Realm";
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realmConstructorDefinition.callAsConstructor = RealmConstructor;
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JSStaticValue realmStaticProperties[] = {
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{"defaultPath", GetDefaultPath, SetDefaultPath, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
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{NULL, NULL}
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};
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realmConstructorDefinition.staticValues = realmStaticProperties;
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return JSClassCreate(&realmConstructorDefinition);
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}
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JSValueRef RealmGetProperty(JSContextRef ctx, JSObjectRef object, JSStringRef propertyName, JSValueRef* exception) {
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static JSStringRef s_pathString = JSStringCreateWithUTF8CString("path");
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if (JSStringIsEqual(propertyName, s_pathString)) {
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return RJSValueForString(ctx, RJSGetInternal<SharedRealm *>(object)->get()->config().path);
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}
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static JSStringRef s_schemaVersion = JSStringCreateWithUTF8CString("schemaVersion");
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if (JSStringIsEqual(propertyName, s_schemaVersion)) {
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return JSValueMakeNumber(ctx, RJSGetInternal<SharedRealm *>(object)->get()->config().schema_version);
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}
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return NULL;
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}
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JSValueRef RealmObjects(JSContextRef ctx, JSObjectRef function, JSObjectRef thisObject, size_t argumentCount, const JSValueRef arguments[], JSValueRef* jsException) {
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try {
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RJSValidateArgumentRange(argumentCount, 1, 2);
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std::string className = RJSValidatedStringForValue(ctx, arguments[0], "objectType");
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SharedRealm sharedRealm = *RJSGetInternal<SharedRealm *>(thisObject);
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if (argumentCount == 1) {
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return RJSResultsCreate(ctx, sharedRealm, className);
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}
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else {
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std::string predicate = RJSValidatedStringForValue(ctx, arguments[1], "predicate");
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return RJSResultsCreate(ctx, sharedRealm, className, predicate);
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}
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}
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catch (std::exception &exp) {
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if (jsException) {
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*jsException = RJSMakeError(ctx, exp);
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}
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return NULL;
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}
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}
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JSObjectRef RJSDictForPropertyArray(JSContextRef ctx, ObjectSchema &object_schema, JSObjectRef array) {
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// copy to dictionary
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if (object_schema.properties.size() != RJSValidatedArrayLength(ctx, array)) {
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throw std::runtime_error("Array must contain values for all object properties");
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}
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JSValueRef exception = NULL;
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JSObjectRef dict = JSObjectMake(ctx, NULL, NULL);
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for (unsigned int i = 0; i < object_schema.properties.size(); i++) {
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JSStringRef nameStr = JSStringCreateWithUTF8CString(object_schema.properties[i].name.c_str());
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JSValueRef value = JSObjectGetPropertyAtIndex(ctx, array, i, &exception);
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if (exception) {
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throw RJSException(ctx, exception);
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}
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JSObjectSetProperty(ctx, dict, nameStr, value, kJSPropertyAttributeNone, &exception);
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if (exception) {
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throw RJSException(ctx, exception);
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}
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JSStringRelease(nameStr);
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}
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return dict;
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}
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JSValueRef RealmCreateObject(JSContextRef ctx, JSObjectRef function, JSObjectRef thisObject, size_t argumentCount, const JSValueRef arguments[], JSValueRef* jsException) {
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try {
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RJSValidateArgumentRange(argumentCount, 2, 3);
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std::string className = RJSValidatedStringForValue(ctx, arguments[0], "objectType");
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SharedRealm sharedRealm = *RJSGetInternal<SharedRealm *>(thisObject);
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auto object_schema = sharedRealm->config().schema->find(className);
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if (object_schema == sharedRealm->config().schema->end()) {
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*jsException = RJSMakeError(ctx, "Object type '" + className + "' not found in schema.");
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return NULL;
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}
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JSObjectRef object = RJSValidatedValueToObject(ctx, arguments[1]);
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if (RJSIsValueArray(ctx, arguments[1])) {
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object = RJSDictForPropertyArray(ctx, *object_schema, object);
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}
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bool update = false;
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if (argumentCount == 3) {
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update = RJSValidatedValueToBool(ctx, arguments[2]);
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}
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return RJSObjectCreate(ctx, Object::create<JSValueRef>(ctx, sharedRealm, *object_schema, object, update));
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}
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catch (std::exception &exp) {
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if (jsException) {
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*jsException = RJSMakeError(ctx, exp);
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}
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return NULL;
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}
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}
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JSValueRef RealmDelete(JSContextRef ctx, JSObjectRef function, JSObjectRef thisObject, size_t argumentCount, const JSValueRef arguments[], JSValueRef* jsException) {
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try {
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RJSValidateArgumentCount(argumentCount, 1);
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if (RJSIsValueArray(ctx, arguments[0]) ||
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JSValueIsObjectOfClass(ctx, arguments[0], RJSResultsClass()) ||
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JSValueIsObjectOfClass(ctx, arguments[0], RJSArrayClass()))
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{
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JSObjectRef array = RJSValidatedValueToObject(ctx, arguments[0]);
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size_t length = RJSValidatedArrayLength(ctx, array);
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for (long i = length-1; i >= 0; i--) {
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JSValueRef object = RJSValidatedObjectAtIndex(ctx, array, (unsigned int)i);
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RealmDelete(ctx, function, thisObject, 1, &object, jsException);
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if (*jsException) {
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return NULL;
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}
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}
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return NULL;
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}
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if (!JSValueIsObjectOfClass(ctx, arguments[0], RJSObjectClass())) {
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throw std::runtime_error("Argument to 'delete' must be a Realm object or a collection of Realm objects.");
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}
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Object *object = RJSGetInternal<Object *>(RJSValidatedValueToObject(ctx, arguments[0]));
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SharedRealm realm = *RJSGetInternal<SharedRealm *>(thisObject);
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if (!realm->is_in_transaction()) {
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throw std::runtime_error("Can only delete objects within a transaction.");
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}
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realm::TableRef table = ObjectStore::table_for_object_type(realm->read_group(), object->object_schema.name);
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table->move_last_over(object->row.get_index());
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return NULL;
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}
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catch (std::exception &exp) {
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if (jsException) {
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*jsException = RJSMakeError(ctx, exp);
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}
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return NULL;
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}
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}
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JSValueRef RealmDeleteAll(JSContextRef ctx, JSObjectRef function, JSObjectRef thisObject, size_t argumentCount, const JSValueRef arguments[], JSValueRef* jsException) {
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try {
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RJSValidateArgumentCount(argumentCount, 0);
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SharedRealm realm = *RJSGetInternal<SharedRealm *>(thisObject);
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if (!realm->is_in_transaction()) {
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throw std::runtime_error("Can only delete objects within a transaction.");
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}
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for (auto objectSchema : *realm->config().schema) {
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ObjectStore::table_for_object_type(realm->read_group(), objectSchema.name)->clear();
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}
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return NULL;
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}
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catch (std::exception &exp) {
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if (jsException) {
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*jsException = RJSMakeError(ctx, exp);
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}
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return NULL;
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}
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}
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JSValueRef RealmWrite(JSContextRef ctx, JSObjectRef function, JSObjectRef thisObject, size_t argumentCount, const JSValueRef arguments[], JSValueRef* jsException) {
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try {
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RJSValidateArgumentCount(argumentCount, 1);
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JSObjectRef object = RJSValidatedValueToObject(ctx, arguments[0]);
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SharedRealm realm = *RJSGetInternal<SharedRealm *>(thisObject);
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realm->begin_transaction();
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JSObjectCallAsFunction(ctx, object, thisObject, 0, NULL, jsException);
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if (*jsException) {
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realm->cancel_transaction();
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}
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else {
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realm->commit_transaction();
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}
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}
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catch (std::exception &exp) {
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if (jsException) {
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*jsException = RJSMakeError(ctx, exp);
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}
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return NULL;
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}
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return NULL;
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}
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namespace realm {
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struct Notification {
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JSGlobalContextRef ctx;
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RJSRealmDelegate::NotificationFunction func;
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};
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}
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JSValueRef RealmAddNotification(JSContextRef ctx, JSObjectRef function, JSObjectRef thisObject, size_t argumentCount, const JSValueRef arguments[], JSValueRef* jsException) {
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try {
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RJSValidateArgumentCount(argumentCount, 1);
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JSObjectRef user_function = RJSValidatedValueToObject(ctx, arguments[0]);
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SharedRealm realm = *RJSGetInternal<SharedRealm *>(thisObject);
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JSGlobalContextRef gCtx = JSGlobalContextRetain(JSContextGetGlobalContext(ctx));
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RJSRealmDelegate::NotificationFunction func = std::make_shared<std::function<void(const std::string)>>([=](std::string notification_name) {
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JSValueRef arguments[2];
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arguments[0] = thisObject;
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arguments[1] = RJSValueForString(gCtx, notification_name);
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JSValueRef ex = NULL;
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JSObjectCallAsFunction(gCtx, user_function, thisObject, 2, arguments, &ex);
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if (ex) {
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throw RJSException(gCtx, ex);
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}
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});
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static_cast<RJSRealmDelegate *>(realm->m_delegate.get())->add_notification(func);
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return RJSWrapObject<Notification *>(ctx, RJSNotificationClass(), new Notification { gCtx, func });
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}
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catch (std::exception &exp) {
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if (jsException) {
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*jsException = RJSMakeError(ctx, exp);
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}
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return NULL;
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}
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}
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void RJSNotificationFinalize(JSObjectRef object) {
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Notification *notification = RJSGetInternal<Notification *>(object);
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JSGlobalContextRelease(notification->ctx);
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RJSFinalize<Notification *>(object);
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}
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JSClassRef RJSRealmClass() {
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const JSStaticFunction realmFuncs[] = {
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{"objects", RealmObjects, kJSPropertyAttributeReadOnly | kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
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{"create", RealmCreateObject, kJSPropertyAttributeReadOnly | kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
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{"delete", RealmDelete, kJSPropertyAttributeReadOnly | kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
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{"deleteAll", RealmDeleteAll, kJSPropertyAttributeReadOnly | kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
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{"write", RealmWrite, kJSPropertyAttributeReadOnly | kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
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{"addNotification", RealmAddNotification, kJSPropertyAttributeReadOnly | kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
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{NULL, NULL},
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};
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static JSClassRef s_realmClass = RJSCreateWrapperClass<SharedRealm *>("Realm", RealmGetProperty, NULL, realmFuncs);
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return s_realmClass;
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}
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JSClassRef RJSNotificationClass() {
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static JSClassRef s_notificationClass = RJSCreateWrapperClass<Notification *>("Notification", NULL, NULL, NULL, RJSNotificationFinalize);
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return s_notificationClass;
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}
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