RoutineExtensions.cs

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// 
//  Copyright 2010-2015 Deveel
// 
//    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.
//

using System;

using Deveel.Data;
using Deveel.Data.Security;
using Deveel.Data.Sql;
using Deveel.Data.Sql.Expressions;

namespace Deveel.Data.Routines {
    public static class RoutineExtensions {
        public static InvokeResult Execute(this IRoutine routine) {
            return Execute(routine, new SqlExpression[0]);
        }

        public static InvokeResult Execute(this IRoutine routine, SqlExpression[] args) {
            return Execute(routine, args, null);
        }

        public static InvokeResult Execute(this IRoutine routine, SqlExpression[] args, IQuery context) {
            return Execute(routine, args, context, null);
        }

        public static InvokeResult Execute(this IRoutine routine, SqlExpression[] args, IQuery query, IVariableResolver resolver) {
            return Execute(routine, args, query, resolver, null);
        }

        public static InvokeResult Execute(this IRoutine routine, IQuery query) {
            return Execute(routine, query, null);
        }

        public static InvokeResult Execute(this IRoutine routine, IQuery query, IVariableResolver resolver) {
            return Execute(routine, query, resolver, null);
        }

        public static InvokeResult Execute(this IRoutine routine, IQuery query, IVariableResolver resolver, IGroupResolver group) {
            return Execute(routine, new SqlExpression[0], query, resolver, group);
        }

        public static InvokeResult Execute(this IRoutine routine, SqlExpression[] args, IQuery query, IVariableResolver resolver, IGroupResolver group) {
            var request = new Invoke(routine.FullName, args);

            if (query != null &&
                !query.UserCanExecuteFunction(request))
                throw new InvalidOperationException();

            var executeContext = new InvokeContext(request, routine, resolver, group, query);
            return routine.Execute(executeContext);
        }

        public static InvokeResult Execute(this IRoutine routine, DataObject[] args) {
            var exps = new SqlExpression[0];
            if (args != null && args.Length > 0) {
                exps = new SqlExpression[args.Length];

                for (int i = 0; i < args.Length; i++) {
                    exps[i] = SqlExpression.Constant(args[i]);
                }
            }

            return routine.Execute(exps);
        }
    }
}