primenumber.cs

ajax patterns 这是关于ajax设计模式方面的原代码

/*
    Copyright 2006 Christian Gross http://www.devspace.com
    From the book Ajax Patterns and Best Practices

   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 System.Text;
using System.Collections;
using System.IO;
using System.Xml;
using System.Xml.Serialization;
using Devspace.Ajax.InfiniteData;
using Devspace.Commons.TDD;

namespace Devspace.Ajax.InfiniteData.PrimeNumberCalculator {
    #region XML and Data types
    [XmlRoot("Action")]
    public class ActionData : IData {
        private string _transactionIdentifier;
        private long _number;
        
        public ITask InstantiateTask() {
            return new Calculator( _number, _transactionIdentifier);
        }
        [XmlElement("TransactionIdentifier")]
        public string TransactionIdentifier {
            get {
                return _transactionIdentifier;
            }
            set {
                _transactionIdentifier = value;
            }
        }
        [XmlElement("Number")]
        public long Number {
            get {
                return _number;
            }
            set {
                _number = value;
            }
        }
        public override string ToString() {
            return "TransactionIdentifier (" + _transactionIdentifier +
                ") Number (" + _number + ")";
        }
    }
    
    [XmlRoot( "PrimeNumber")]
    public class PrimeNumberData : IResult {
        private long _num;
        private string _transactionIdentifier;
        bool _isLast;
        
        public PrimeNumberData() {
        }
        public PrimeNumberData( long num, string transactionIdentifier) {
            _num = num;
            _transactionIdentifier = transactionIdentifier;
            _isLast = false;
        }
        
        [XmlElement("Success")]
        public string Result {
            get {
                return "success";
            }
            set {
                
            }
        }
        [XmlElement( "TransactionIdentifier")]
        public string TransactionIdentifier {
            get {
                return _transactionIdentifier;
            }
            set {
                
            }
        }
        [XmlElement( "Number")]
        public long Number {
            get {
                return _num;
            }
            set {
                
            }
        }
        public bool IsLast {
            get {
                return _isLast;
            }
        }
        public PrimeNumberData AssignLast() {
            _isLast = true;
            return this;
        }
        public override string ToString() {
            return "TransactionIdentifier (" + _transactionIdentifier +
                ") Number (" + _num + ")";
        }
    }
    #endregion
    
    #region Serializers
    public class Serializer {
        public static ActionData Parse( Stream stream) {
            XmlSerializer s = new XmlSerializer( typeof( ActionData));
            return (ActionData)s.Deserialize( stream);
        }
        public static string Generate( PrimeNumberData data) {
            // Ugly fix! I needed to do this because of all the extras
            // that .NET generates and oddly enough IE cannot cope with this extra stuff
            /*XmlSerializer s = new XmlSerializer( typeof( PrimeNumberData));
            StringWriter strWriter = new StringWriter();
            s.Serialize( strWriter, data);
            return strWriter.ToString();*/
            return "<Action>" +
                "<TransactionIdentifier>" + data.TransactionIdentifier + "</TransactionIdentifier>" +
                "<Number>" + data.Number + "</Number>" +
                "</Action>";
            
        }
    }
    #endregion
    
    #region Prime Number calculations
    public class Calculator : ITask {
        private string _transactionIdentifier;
        
        public string TransactionIdentifier {
            get {
                return _transactionIdentifier;
            }
            set {
                _transactionIdentifier = value;
            }
        }
        public bool IsPrime( long number) {
            long halfvalue = number / 2 + 1;
            for( long c1 = 2; c1 <= halfvalue; c1 ++) {
                long result;
                Math.DivRem( number, c1, out result);
                if( result == 0) {
                    return false;
                }
            }
            return true;
        }
        public void Execute( ITaskManager mgr) {
            for( int c1 = 2; c1 <= _number; c1 ++) {
                if( IsPrime( c1)) {
                    mgr.AddResult( new PrimeNumberData( c1, _transactionIdentifier));
                }
            }
            //mgr.AddResult( new PrimeNumberData().AssignLast());
        }
        
        private long _number;
        
        public Calculator( long number, string transactionIdentifier) {
            if( number < 1) {
                throw new IndexOutOfRangeException( "Number must be greater than 0");
            }
            // I am limiting this! Sorry for those that like to be clever!
            if( number > 50) {
                number = 50;
            }
            _number = number;
            _transactionIdentifier = transactionIdentifier;
        }
        
    }
    #endregion
}