예제 #1
0
파일: IndexFactory.cs 프로젝트: ikvm/nesper
        /// <summary>
        /// Factory for indexes that store filter parameter constants for a given event property and filter operator.
        /// <para />
        /// Does not perform any check of validity of property name.
        /// </summary>
        /// <param name="lookupable">The lookupable.</param>
        /// <param name="lockFactory">The lock factory.</param>
        /// <param name="filterOperator">is the type of index to use</param>
        /// <returns>
        /// the proper index based on the filter operator type
        /// </returns>
        /// <exception cref="System.ArgumentException">Cannot create filter index instance for filter operator  + filterOperator</exception>
        public static FilterParamIndexBase CreateIndex(FilterSpecLookupable lookupable, FilterServiceGranularLockFactory lockFactory, FilterOperator filterOperator)
        {
            FilterParamIndexBase index;
            Type returnValueType = lookupable.ReturnType;

            // Handle all EQUAL comparisons
            if (filterOperator == FilterOperator.EQUAL)
            {
                index = new FilterParamIndexEquals(lookupable, lockFactory.ObtainNew());
                return(index);
            }

            // Handle all NOT-EQUAL comparisons
            if (filterOperator == FilterOperator.NOT_EQUAL)
            {
                index = new FilterParamIndexNotEquals(lookupable, lockFactory.ObtainNew());
                return(index);
            }

            if (filterOperator == FilterOperator.IS)
            {
                index = new FilterParamIndexEqualsIs(lookupable, lockFactory.ObtainNew());
                return(index);
            }

            if (filterOperator == FilterOperator.IS_NOT)
            {
                index = new FilterParamIndexNotEqualsIs(lookupable, lockFactory.ObtainNew());
                return(index);
            }

            // Handle all GREATER, LESS etc. comparisons
            if ((filterOperator == FilterOperator.GREATER) ||
                (filterOperator == FilterOperator.GREATER_OR_EQUAL) ||
                (filterOperator == FilterOperator.LESS) ||
                (filterOperator == FilterOperator.LESS_OR_EQUAL))
            {
                if (returnValueType != typeof(String))
                {
                    index = new FilterParamIndexCompare(lookupable, lockFactory.ObtainNew(), filterOperator);
                }
                else
                {
                    index = new FilterParamIndexCompareString(lookupable, lockFactory.ObtainNew(), filterOperator);
                }
                return(index);
            }

            // Handle all normal and inverted RANGE comparisons
            if (filterOperator.IsRangeOperator())
            {
                if (returnValueType != typeof(String))
                {
                    index = new FilterParamIndexDoubleRange(lookupable, lockFactory.ObtainNew(), filterOperator);
                }
                else
                {
                    index = new FilterParamIndexStringRange(lookupable, lockFactory.ObtainNew(), filterOperator);
                }
                return(index);
            }
            if (filterOperator.IsInvertedRangeOperator())
            {
                if (returnValueType != typeof(String))
                {
                    return(new FilterParamIndexDoubleRangeInverted(lookupable, lockFactory.ObtainNew(), filterOperator));
                }
                else
                {
                    return(new FilterParamIndexStringRangeInverted(lookupable, lockFactory.ObtainNew(), filterOperator));
                }
            }

            // Handle all IN and NOT IN comparisons
            if (filterOperator == FilterOperator.IN_LIST_OF_VALUES)
            {
                return(new FilterParamIndexIn(lookupable, lockFactory.ObtainNew()));
            }
            if (filterOperator == FilterOperator.NOT_IN_LIST_OF_VALUES)
            {
                return(new FilterParamIndexNotIn(lookupable, lockFactory.ObtainNew()));
            }

            // Handle all bool expression
            if (filterOperator == FilterOperator.BOOLEAN_EXPRESSION)
            {
                return(new FilterParamIndexBooleanExpr(lockFactory.ObtainNew()));
            }
            throw new ArgumentException("Cannot create filter index instance for filter operator " + filterOperator);
        }
예제 #2
0
        /// <summary>
        /// Factory for indexes that store filter parameter constants for a given event property and filter operator.
        /// <para />
        /// Does not perform any check of validity of property name.
        /// </summary>
        /// <param name="lookupable">The lookupable.</param>
        /// <param name="lockFactory">The lock factory.</param>
        /// <param name="filterOperator">is the type of index to use</param>
        /// <returns>
        /// the proper index based on the filter operator type
        /// </returns>
        /// <exception cref="System.ArgumentException">Cannot create filter index instance for filter operator  + filterOperator</exception>
        public static FilterParamIndexBase CreateIndex(
            FilterSpecLookupable lookupable,
            FilterServiceGranularLockFactory lockFactory,
            FilterOperator filterOperator)
        {
            FilterParamIndexBase index;
            Type returnValueType = lookupable.ReturnType;

            // Handle all EQUAL comparisons
            if (filterOperator == FilterOperator.EQUAL)
            {
                index = new FilterParamIndexEquals(lookupable, lockFactory.ObtainNew());
                return(index);
            }

            // Handle all NOT-EQUAL comparisons
            if (filterOperator == FilterOperator.NOT_EQUAL)
            {
                index = new FilterParamIndexNotEquals(lookupable, lockFactory.ObtainNew());
                return(index);
            }

            if (filterOperator == FilterOperator.IS)
            {
                index = new FilterParamIndexEqualsIs(lookupable, lockFactory.ObtainNew());
                return(index);
            }

            if (filterOperator == FilterOperator.IS_NOT)
            {
                index = new FilterParamIndexNotEqualsIs(lookupable, lockFactory.ObtainNew());
                return(index);
            }

            // Handle all GREATER, LESS etc. comparisons
            if ((filterOperator == FilterOperator.GREATER) ||
                (filterOperator == FilterOperator.GREATER_OR_EQUAL) ||
                (filterOperator == FilterOperator.LESS) ||
                (filterOperator == FilterOperator.LESS_OR_EQUAL))
            {
                if (returnValueType != typeof(String))
                {
                    index = new FilterParamIndexCompare(lookupable, lockFactory.ObtainNew(), filterOperator);
                }
                else
                {
                    index = new FilterParamIndexCompareString(lookupable, lockFactory.ObtainNew(), filterOperator);
                }
                return(index);
            }

            // Handle all normal and inverted RANGE comparisons
            if (filterOperator.IsRangeOperator())
            {
                if (returnValueType != typeof(String))
                {
                    index = new FilterParamIndexDoubleRange(lookupable, lockFactory.ObtainNew(), filterOperator);
                }
                else
                {
                    index = new FilterParamIndexStringRange(lookupable, lockFactory.ObtainNew(), filterOperator);
                }
                return(index);
            }
            if (filterOperator.IsInvertedRangeOperator())
            {
                if (returnValueType != typeof(String))
                {
                    return(new FilterParamIndexDoubleRangeInverted(lookupable, lockFactory.ObtainNew(), filterOperator));
                }
                else
                {
                    return(new FilterParamIndexStringRangeInverted(lookupable, lockFactory.ObtainNew(), filterOperator));
                }
            }

            // Handle all IN and NOT IN comparisons
            if (filterOperator == FilterOperator.IN_LIST_OF_VALUES)
            {
                return(new FilterParamIndexIn(lookupable, lockFactory.ObtainNew()));
            }
            if (filterOperator == FilterOperator.NOT_IN_LIST_OF_VALUES)
            {
                return(new FilterParamIndexNotIn(lookupable, lockFactory.ObtainNew()));
            }

            // Handle all bool expression
            if (filterOperator == FilterOperator.BOOLEAN_EXPRESSION)
            {
                return(new FilterParamIndexBooleanExpr(lockFactory.ObtainNew()));
            }

            // Handle advanced-index
            if (filterOperator == FilterOperator.ADVANCED_INDEX)
            {
                FilterSpecLookupableAdvancedIndex advLookable = (FilterSpecLookupableAdvancedIndex)lookupable;
                if (advLookable.IndexType.Equals(EngineImportApplicationDotMethodPointInsideRectangle.INDEX_TYPE_NAME))
                {
                    return(new FilterParamIndexQuadTreePointRegion(lockFactory.ObtainNew(), lookupable));
                }
                else if (advLookable.IndexType.Equals(EngineImportApplicationDotMethodRectangeIntersectsRectangle.INDEX_TYPE_NAME))
                {
                    return(new FilterParamIndexQuadTreeMXCIF(lockFactory.ObtainNew(), lookupable));
                }
                else
                {
                    throw new IllegalStateException("Unrecognized index type " + advLookable.IndexType);
                }
            }

            throw new ArgumentException("Cannot create filter index instance for filter operator " + filterOperator);
        }