DocSpace-buildtools/common/services/ASC.Data.Backup/Tasks/Data/RelationInfo.cs

/*
 *
 * (c) Copyright Ascensio System Limited 2010-2020
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 * General Public License (GPL) version 3 as published by the Free Software Foundation (https://www.gnu.org/copyleft/gpl.html). 
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using System;
using System.Diagnostics;

namespace ASC.Data.Backup.Tasks.Data
{
    public enum RelationImportance
    {
        Low,
        Normal
    }

    [DebuggerDisplay("({ParentTable},{ParentColumn})->({ChildTable},{ChildColumn})")]
    public class RelationInfo
    {
        public string ParentTable { get; private set; }
        public string ParentColumn { get; private set; }
        public string ChildTable { get; private set; }
        public string ChildColumn { get; private set; }

        public Type ParentModule { get; private set; }
        public RelationImportance Importance { get; private set; }

        public Func<DataRowInfo, bool> CollisionResolver { get; private set; }


        public RelationInfo(string parentTable, string parentColumn, string childTable, string childColumn)
            : this(parentTable, parentColumn, childTable, childColumn, null, null)
        {

        }

        public RelationInfo(string parentTable, string parentColumn, string childTable, string childColumn, Func<DataRowInfo, bool> collisionResolver)
            : this(parentTable, parentColumn, childTable, childColumn, null, collisionResolver)
        {

        }

        public RelationInfo(string parentTable, string parentColumn, string childTable, string childColumn, Type parentModule)
            : this(parentTable, parentColumn, childTable, childColumn, parentModule, null)
        {

        }

        public RelationInfo(string parentTable, string parentColumn, string childTable, string childColumn, Type parentModule, Func<DataRowInfo, bool> collisionResolver)
            : this(parentTable, parentColumn, childTable, childColumn, parentModule, collisionResolver, RelationImportance.Normal)
        {

        }

        public RelationInfo(string parentTable, string parentColumn, string childTable, string childColumn, Type parentModule, Func<DataRowInfo, bool> collisionResolver, RelationImportance importance)
        {
            ParentTable = parentTable;
            ParentColumn = parentColumn;
            ChildTable = childTable;
            ChildColumn = childColumn;
            ParentModule = parentModule;
            CollisionResolver = collisionResolver;
            Importance = importance;
        }


        public bool FitsForTable(string tableName)
        {
            return string.Equals(tableName, ChildTable, StringComparison.InvariantCultureIgnoreCase);
        }

        public bool FitsForRow(DataRowInfo row)
        {
            return FitsForTable(row.TableName) && (CollisionResolver == null || CollisionResolver(row));
        }

        public bool IsExternal()
        {
            return ParentModule != null;
        }

        public bool IsSelfRelation()
        {
            return string.Equals(ParentTable, ChildTable, StringComparison.InvariantCultureIgnoreCase);
        }
    }
}