init lserp cs 5.0
This commit is contained in:
cyf
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using System;
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using System.Collections;
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using System.Collections.Specialized;
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using System.Collections.Generic;
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using System.IO;
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using System.Reflection;
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using System.Text;
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using System.Web;
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using Zhaizj.Framework.ORM;
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using Zhaizj.Framework.Serialization;
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using Zhaizj.Framework.Web;
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namespace Zhaizj.Framework.Data {
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internal class MemoryDB {
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private static readonly ILog logger = LogManager.GetLogger( typeof( MemoryDB ) );
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private static IDictionary objectList = Hashtable.Synchronized( new Hashtable() );
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private static IDictionary indexList = Hashtable.Synchronized( new Hashtable() );
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public static IDictionary GetObjectsMap() {
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return objectList;
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}
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public static IDictionary GetIndexMap() {
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return indexList;
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}
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private static Object objLock = new object();
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private static Object chkLock = new object();
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private static IList GetObjectsByName( Type t ) {
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if (isCheckFileDB( t )) {
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lock (chkLock) {
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if (isCheckFileDB( t )) {
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loadDataFromFile( t );
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_hasCheckedFileDB[t] = true;
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}
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}
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}
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return (objectList[t.FullName] as IList);
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}
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private static Hashtable _hasCheckedFileDB = new Hashtable();
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private static Boolean isCheckFileDB( Type t ) {
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if (_hasCheckedFileDB[t] == null) return true;
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return false;
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}
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private static void loadDataFromFile( Type t ) {
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if (Zhaizj.Framework.IO.File.Exists( getCachePath( t ) )) {
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IList list = getListWithIndex( Zhaizj.Framework.IO.File.Read( getCachePath( t ) ), t );
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objectList[t.FullName] = list;
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}
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else {
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objectList[t.FullName] = new ArrayList();
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}
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}
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private static IList getListWithIndex( String jsonString, Type t ) {
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IList list = new ArrayList();
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if (strUtil.IsNullOrEmpty( jsonString )) return list;
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List<object> lists = JsonParser.Parse( jsonString ) as List<object>;
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foreach (Dictionary<String, object> map in lists) {
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CacheObject obj = JSON.setValueToObject( t, map ) as CacheObject;
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int index = list.Add( obj );
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addIdIndex( t.FullName, obj.Id, index );
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makeIndexByInsert( obj );
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}
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return list;
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}
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private static void Serialize( Type t ) {
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Serialize( t, GetObjectsByName( t ) );
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}
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private static void Serialize( Type t, IList list ) {
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String target = SimpleJsonString.ConvertList( list );
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if (strUtil.IsNullOrEmpty( target )) return;
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String absolutePath = getCachePath( t );
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lock (objLock) {
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Zhaizj.Framework.IO.File.Write( absolutePath, target );
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}
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}
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private static void UpdateObjects( String key, IList list ) {
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objectList[key] = list;
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}
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//------------------------------------------------------------------------------
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internal static CacheObject FindById( Type t, int id ) {
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IList list = GetObjectsByName( t );
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if (list.Count > 0) {
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int objIndex = getIndex( t.FullName, id );
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if (objIndex >= 0 && objIndex < list.Count) {
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return list[objIndex] as CacheObject;
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}
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}
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return null;
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}
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internal static IList FindBy( Type t, String propertyName, Object val ) {
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String propertyKey = getPropertyKey( t.FullName, propertyName );
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NameValueCollection valueCollection = getValueCollection( propertyKey );
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String ids = valueCollection[val.ToString()];
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if (strUtil.IsNullOrEmpty( ids )) return new ArrayList();
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IList results = new ArrayList();
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String[] arrItem = ids.Split( ',' );
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foreach (String strId in arrItem) {
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int id = cvt.ToInt( strId );
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if (id < 0) continue;
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CacheObject obj = FindById( t, id );
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if (obj != null) results.Add( obj );
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}
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return results;
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}
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internal static IList FindAll( Type t ) {
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return new ArrayList( GetObjectsByName( t ) );
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}
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internal static void Insert( CacheObject obj ) {
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Type t = obj.GetType();
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String _typeFullName = t.FullName;
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IList list = FindAll( t );
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obj.Id = getNextId( list );
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int index = list.Add( obj );
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addIdIndex( _typeFullName, obj.Id, index );
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UpdateObjects( _typeFullName, list );
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makeIndexByInsert( obj );
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if (isInMemory( t )) return;
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Serialize( t );
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}
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internal static void InsertByIndex( CacheObject obj, String propertyName, Object pValue ) {
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Type t = obj.GetType();
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String _typeFullName = t.FullName;
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IList list = FindAll( t );
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obj.Id = getNextId( list );
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int index = list.Add( obj );
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addIdIndex( _typeFullName, obj.Id, index );
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UpdateObjects( _typeFullName, list );
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makeIndexByInsert( obj, propertyName, pValue );
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if (isInMemory( t )) return;
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Serialize( t );
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}
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internal static void InsertByIndex( CacheObject obj, Dictionary<String, Object> dic ) {
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Type t = obj.GetType();
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String _typeFullName = t.FullName;
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IList list = FindAll( t );
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obj.Id = getNextId( list );
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int index = list.Add( obj );
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addIdIndex( _typeFullName, obj.Id, index );
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UpdateObjects( _typeFullName, list );
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foreach (KeyValuePair<String, Object> kv in dic) {
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makeIndexByInsert( obj, kv.Key, kv.Value );
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}
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if (isInMemory( t )) return;
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Serialize( t );
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}
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internal static Result Update( CacheObject obj ) {
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Type t = obj.GetType();
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makeIndexByUpdate( obj );
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if (isInMemory( t )) return new Result();
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try {
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Serialize( t );
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return new Result();
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}
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catch (Exception ex) {
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throw ex;
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}
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}
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internal static Result updateByIndex( CacheObject obj, Dictionary<String, Object> dic ) {
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Type t = obj.GetType();
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makeIndexByUpdate( obj );
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if (isInMemory( t )) return new Result();
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try {
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Serialize( t );
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return new Result();
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}
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catch (Exception ex) {
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throw ex;
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}
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}
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internal static void Delete( CacheObject obj ) {
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Type t = obj.GetType();
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String _typeFullName = t.FullName;
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makeIndexByDelete( obj );
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IList list = FindAll( t );
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list.Remove( obj );
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UpdateObjects( _typeFullName, list );
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deleteIdIndex( _typeFullName, obj.Id );
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if (isInMemory( t )) return;
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Serialize( t, list );
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}
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private static int getNextId( IList list ) {
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if (list.Count == 0) return 1;
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CacheObject preObject = list[list.Count - 1] as CacheObject;
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return preObject.Id + 1;
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}
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private static Boolean isInMemory( Type t ) {
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return rft.GetAttribute( t, typeof( NotSaveAttribute ) ) != null;
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}
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//----------------------------------------------------------------------------------------------
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private static Object objIndexLock = new object();
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private static Object objIndexLockInsert = new object();
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private static Object objIndexLockUpdate = new object();
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private static Object objIndexLockDelete = new object();
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private static void makeIndexByInsert( CacheObject cacheObject, String propertyName, Object pValue ) {
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if (cacheObject == null || pValue == null) return;
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Type t = cacheObject.GetType();
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String propertyKey = getPropertyKey( t.FullName, propertyName );
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lock (objIndexLock) {
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NameValueCollection valueCollection = getValueCollection( propertyKey );
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valueCollection.Add( pValue.ToString(), cacheObject.Id.ToString() );
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indexList[propertyKey] = valueCollection;
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}
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}
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private static void makeIndexByInsert( CacheObject cacheObject ) {
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if (cacheObject == null) return;
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Type t = cacheObject.GetType();
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PropertyInfo[] properties = getProperties( t );
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foreach (PropertyInfo p in properties) {
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String propertyKey = getPropertyKey( t.FullName, p.Name );
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lock (objIndexLockInsert) {
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NameValueCollection valueCollection = getValueCollection( propertyKey );
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addNewValueMap( valueCollection, cacheObject, p );
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}
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}
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}
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private static void makeIndexByUpdate( CacheObject cacheObject ) {
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if (cacheObject == null) return;
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Type t = cacheObject.GetType();
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PropertyInfo[] properties = getProperties( t );
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foreach (PropertyInfo p in properties) {
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String propertyKey = getPropertyKey( t.FullName, p.Name );
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lock (objIndexLockUpdate) {
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NameValueCollection valueCollection = getValueCollection( propertyKey );
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deleteOldValueIdMap( valueCollection, cacheObject.Id );
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addNewValueMap( valueCollection, cacheObject, p );
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}
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}
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}
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private static void makeIndexByUpdate( CacheObject cacheObject, String propertyName, Object pValue ) {
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if (cacheObject == null || pValue == null) return;
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Type t = cacheObject.GetType();
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String propertyKey = getPropertyKey( t.FullName, propertyName );
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lock (objIndexLockUpdate) {
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NameValueCollection valueCollection = getValueCollection( propertyKey );
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deleteOldValueIdMap( valueCollection, cacheObject.Id );
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valueCollection.Add( pValue.ToString(), cacheObject.Id.ToString() );
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indexList[propertyKey] = valueCollection;
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}
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}
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private static void makeIndexByDelete( CacheObject cacheObject ) {
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if (cacheObject == null) return;
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Type t = cacheObject.GetType();
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PropertyInfo[] properties = getProperties( t );
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foreach (PropertyInfo p in properties) {
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String propertyKey = getPropertyKey( t.FullName, p.Name );
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lock (objIndexLockDelete) {
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NameValueCollection valueCollection = getValueCollection( propertyKey );
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deleteOldValueIdMap( valueCollection, cacheObject.Id );
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}
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}
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}
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private static PropertyInfo[] getProperties( Type t ) {
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return t.GetProperties( BindingFlags.Public | BindingFlags.Instance );
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}
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private static NameValueCollection getValueCollection( String propertyKey ) {
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NameValueCollection valueCollection = indexList[propertyKey] as NameValueCollection;
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if (valueCollection == null) valueCollection = new NameValueCollection();
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return valueCollection;
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}
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private static void addNewValueMap( NameValueCollection valueCollection, CacheObject cacheObject, PropertyInfo p ) {
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Attribute attr = rft.GetAttribute( p, typeof( NotSaveAttribute ) );
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if (attr != null) return;
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String propertyKey = getPropertyKey( cacheObject.GetType().FullName, p.Name );
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Object pValue = rft.GetPropertyValue( cacheObject, p.Name );
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if (pValue == null || strUtil.IsNullOrEmpty( pValue.ToString() )) return;
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valueCollection.Add( pValue.ToString(), cacheObject.Id.ToString() );
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indexList[propertyKey] = valueCollection;
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}
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// TODO 优化
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private static void deleteOldValueIdMap( NameValueCollection valueCollection, int oid ) {
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foreach (String key in valueCollection.AllKeys) {
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String val = valueCollection[key];
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String[] arrItem = val.Split( ',' );
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StringBuilder result = new StringBuilder();
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foreach (String strId in arrItem) {
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int id = cvt.ToInt( strId );
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if (id == oid) continue;
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result.Append( strId );
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result.Append( "," );
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}
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String resultStr = result.ToString();
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if (strUtil.HasText( resultStr ))
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valueCollection[key] = resultStr.Trim().TrimEnd( ',' );
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else
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valueCollection.Remove( key );
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}
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}
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private static String getPropertyKey( String typeFullName, String propertyName ) {
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return typeFullName + "_" + propertyName;
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}
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//-------------------------- Id Index --------------------------------
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private static IDictionary GetIdIndexMap( String key ) {
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if (objectList[key] == null) {
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objectList[key] = new Hashtable();
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}
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return (objectList[key] as IDictionary);
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}
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private static void UpdateIdIndexMap( String key, IDictionary map ) {
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objectList[key] = map;
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}
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private static void clearIdIndexMap( String key ) {
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objectList.Remove( key );
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}
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private static void addIdIndex( String typeFullName, int oid, int index ) {
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String key = getIdIndexMapKey( typeFullName );
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IDictionary indexMap = GetIdIndexMap( key );
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indexMap[oid] = index;
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UpdateIdIndexMap( key, indexMap );
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}
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private static void deleteIdIndex( String typeFullName, int oid ) {
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String key = getIdIndexMapKey( typeFullName );
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clearIdIndexMap( key );
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IList results = objectList[typeFullName] as IList;
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foreach (CacheObject obj in results) {
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addIdIndex( typeFullName, obj.Id, results.IndexOf( obj ) );
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}
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IDictionary indexMap = GetIdIndexMap( key );
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UpdateIdIndexMap( key, indexMap );
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}
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private static int getIndex( String typeFullName, int oid ) {
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int result = -1;
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Object objIndex = GetIdIndexMap( getIdIndexMapKey( typeFullName ) )[oid];
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if (objIndex != null) {
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result = (int)objIndex;
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}
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return result;
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}
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private static String getIdIndexMapKey( String typeFullName ) {
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return String.Format( "{0}_oid_index", typeFullName );
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}
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//----------------------------------------------------------
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private static String getCachePath( Type t ) {
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if (SystemInfo.IsWeb == false) {
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return getCacheFileName( t.FullName );
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}
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return getWebCacheFileName( t.FullName );
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}
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private static String getCacheFileName( String name ) {
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return PathHelper.CombineAbs( new String[] {
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AppDomain.CurrentDomain.BaseDirectory,
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cfgHelper.FrameworkRoot,
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"data",
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name + fileExt
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} );
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}
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private static String getWebCacheFileName( String name ) {
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String rpath = strUtil.Join( cfgHelper.FrameworkRoot, "data" );
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rpath = strUtil.Join( rpath, name + fileExt );
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return PathHelper.Map( rpath );
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}
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private static readonly String fileExt = ".config";
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}
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}
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Block a user