[源代码] - C#代码搜索器 - 续

在前文 [源代码] - C#代码搜索器 中我开发了一个代码搜索器. 我对其做的最后改动是将索引保存到磁盘中, 以备今后使用.

如今, 我在工作中又接到一项新任务: 有一个大项目, 其中10个负责数据访问的service即将被淘汰, 将会替换成entity framework的方式. 这10个service一共有近130个operation. 项目中所有调用这些operation的地方都必须被替换成新的EF方式. 整个项目有47902个cs文件. 现在要做个分析, 找到所有需要修改的地方.

稍作思考, 开工!

先创建一个console project, 引入WEBUS2.0 SDK. 将10个service和130个operation的信息放到字符串数组中:

static string[] DS_OP_List = new string[] {
"xxxxDS.CalculatePilotCloseOut",
"xxxxDS.CreatexxFirstAcont",
"xxxxDS.CreatexxUnallocatedULD",
"xxxxDS.xxCargoGetTare",
"xxxxDS.xxCargoCreateAbulk",
"xxxxDS.xxCargoDeleteAbulk",
"xxxxDS.xxCargoMoveAbulk"
...
}; //共130个, 公司有规定, 所以用xxx替代真实值 :)

然后打开Index (关于如何创建Index请参见前文: [源代码] - C#代码搜索器), 再循环对operation进行搜索:

static void Main(string[] args)
{
IIndexer index = new IndexManager(); //构造索引对象
index.Open(@"C:\xxx\CodeSearch.Index", IndexOpenMode.Read); //以只读方式打开索引
ISearcher se = new IndexSearcher(index); //构造搜索对象
using (CSVFile csv = new CSVFile(@"c:\temp\xx_DS_Analysis.csv")) //将结果保存在csv文件中
{
foreach (var ds_op in DS_OP_List)
{
var key = ds_op.Split('.')[1].ToLower(); //从Service.Operation中提取Operation, 比如从xxxxDS.CalculatePilotCloseOut中提取CalculatePilotCloseOut中提取
var hits = se.Search(string.Format("Code=\"{0}\"", key)); //搜索表达式: Code="CalculatePilotCloseOut"
Console.WriteLine("{0}/{1}", key, hits.Count);
foreach (HitDoc hit in hits)
{
csv.Write(ds_op, hit.GetDoc().GetField("FileName").Value.ToString()); //依次输出"服务名", "方法名", "文件名"到csv中
}
}
}
Console.ReadLine();
}

最后上一个生成CSV文件的工具类:

public class CSVFile : IDisposable
{
public string FileName { get; private set; }
private StreamWriter sw = null;
private StreamReader sr = null;
private FileStream fsWrite = null;
private FileStream fsRead = null;

public CSVFile(string filename)
: this(filename, Encoding.UTF8, FileMode.OpenOrCreate)
{
}

public CSVFile(string filename, FileMode mode)
: this(filename, Encoding.UTF8, mode)
{
}

public CSVFile(string filename, Encoding encoding, FileMode mode)
{
this.FileName = filename;
fsWrite = new FileStream(filename, mode, FileAccess.Write, FileShare.Read);
fsWrite.Seek(0, SeekOrigin.End);
fsRead = new FileStream(filename, FileMode.Open, FileAccess.Read, FileShare.ReadWrite);
sw = new StreamWriter(fsWrite, encoding);
sr = new StreamReader(fsRead, encoding);
}

public void Close()
{
sw.Close();
sr.Close();
}

public string[] Read()
{
string text = sr.ReadLine();
if (string.IsNullOrEmpty(text))
{
return null;
}
return text.Split(',');
}

public string[] FindNext(string startKeyword, StringComparison comparisonType = StringComparison.InvariantCultureIgnoreCase)
{
string[] result = null;
while ((result = this.Read()) != null)
{
if (result[0].StartsWith(startKeyword, comparisonType))
{
return result;
}
else
{
continue;
}
}
return null;
}

public void Write(params string[] values)
{
StringBuilder sb = new StringBuilder();
foreach (var v in values)
{
sb.Append(v + ",");
}
sw.WriteLine(sb.ToString().Substring(0, sb.Length - 1));
}

public void Dispose()
{
this.Close();
}
}

View Code
ok, 大功告成! 运行: