public OperateResult <string> Extract(string extensionName, byte[] data)
{
OperateResult <string> operateResult = new OperateResult <string>();
try
{
if (extensionName.IsNullOrWhiteSpace())
{
operateResult.Status = OperateStatus.Failure;
operateResult.Description = "extension不能为空";
}
else if (data == null || data.Length == 0)
{
operateResult.Status = OperateStatus.Failure;
operateResult.Description = "fileData不能为空";
}
else
{
ICollection <DocumentExtractor> extractors = ExtractorFactory.GetExtractors(extensionName);
if (extractors == null || extractors.Count == 0)
{
operateResult.Status = OperateStatus.Failure;
operateResult.Description = "没有对应的处理程序";
}
else
{
bool flag = false;
foreach (DocumentExtractor extractor in extractors)
{
try
{
ExtractedResult extractedResult = extractor.Extract(extensionName, data, ExtractOption.Text);
if (extractedResult != null && extractedResult.Text != null)
{
operateResult.Data = extractedResult.Text;
flag = true;
break;
}
}
catch (Exception exception)
{
flag = false;
LoggerWrapper.Logger.Warn("抽取时发生错误", exception);
}
}
if (!flag)
{
operateResult.Status = OperateStatus.Failure;
operateResult.Description = "抽取出错";
}
}
}
}
catch (Exception exception)
{
operateResult.Description = "抽取出错";
LoggerWrapper.Logger.Error("ExtractText", exception);
}
return(operateResult);
}
public OperateResult <ExtractedResult> Extract(string path, ExtractOption[] options)
{
OperateResult <ExtractedResult> operateResult = new OperateResult <ExtractedResult>();
ExtractOption extractOption = CombineOptions(options);
string extension = Path.GetExtension(path);
ICollection <DocumentExtractor> extractors = ExtractorFactory.GetExtractors(extension);
if (extractors == null || extractors.Count == 0)
{
operateResult.Status = OperateStatus.Failure;
operateResult.Description = "没有对应的处理程序";
return(operateResult);
}
bool flag = false;
if (!File.Exists(path))
{
operateResult.Status = OperateStatus.Failure;
operateResult.Description = string.Concat("不存在该文件:", path);
return(operateResult);
}
byte[] numArray = File.ReadAllBytes(path);
try
{
foreach (DocumentExtractor extractor in extractors)
{
operateResult.Data = extractor.Extract(extension, numArray, extractOption);
if (operateResult.Data == null)
{
continue;
}
flag = true;
break;
}
}
catch (Exception exception)
{
operateResult.Status = OperateStatus.Failure;
operateResult.Description = string.Concat("抽取出错：", exception.Message, Environment.NewLine, exception.StackTrace);
LoggerWrapper.Logger.Error("ExtractText", exception);
}
if (!flag)
{
operateResult.Status = OperateStatus.Failure;
operateResult.Description = "抽取出错";
}
return(operateResult);
}
