public override int VerifyItem(
LibraryHost host,
string strAction,
XmlDocument itemdom,
out string strError)
{
strError = "";
// 执行函数
try
{
return host.VerifyIssue(strAction,
itemdom,
out strError);
}
catch (Exception ex)
{
strError = "执行脚本函数 '" + "VerifyIssue" + "' 时出错：" + ex.Message;
return -1;
}
return 0;
}
// 执行脚本函数VerifyBarcode
// parameters:
// host 如果为空，则函数内部会 new 一个此类型的对象；如果不为空，则直接使用
// strLibraryCodeList 当前操作者管辖的馆代码列表 2014/9/27
// return:
// -2 not found script
// -1 出错
// 0 成功
public int DoVerifyBarcodeScriptFunction(
LibraryHost host,
string strLibraryCodeList,
string strBarcode,
out int nResultValue,
out string strError)
{
strError = "";
nResultValue = -1;
if (this.m_strAssemblyLibraryHostError != "")
{
strError = this.m_strAssemblyLibraryHostError;
return -1;
}
if (this.m_assemblyLibraryHost == null)
{
strError = "未定义<script>脚本代码，无法校验条码号。";
return -2;
}
Type hostEntryClassType = ScriptManager.GetDerivedClassType(
this.m_assemblyLibraryHost,
"DigitalPlatform.LibraryServer.LibraryHost");
if (hostEntryClassType == null)
{
strError = "<script>脚本中未找到DigitalPlatform.LibraryServer.LibraryHost类的派生类，无法校验条码号。";
return -2;
}
// 迟绑定技术。从assembly中实时寻找特定名字的函数
// TODO: 如果两个版本的函数都定义了，会发生什么?
MethodInfo mi = hostEntryClassType.GetMethod("VerifyBarcode");
if (mi == null)
{
strError = "<script>脚本中DigitalPlatform.LibraryServer.LibraryHost类的派生类中，没有提供int VerifyBarcode(string strBarcode, out string strError)函数，因此无法校验条码号。";
return -2;
}
if (host == null)
{
host = (LibraryHost)hostEntryClassType.InvokeMember(null,
BindingFlags.DeclaredOnly |
BindingFlags.Public | BindingFlags.NonPublic |
BindingFlags.Instance | BindingFlags.CreateInstance, null, null,
null);
if (host == null)
{
strError = "创建DigitalPlatform.LibraryServer.LibraryHost类的派生类的对象（构造函数）失败。";
return -1;
}
host.App = this;
}
ParameterInfo[] parameters = mi.GetParameters();
// 执行函数
try
{
if (parameters.Length == 2)
{
object[] args = new object[2];
args[0] = strBarcode;
args[1] = strError;
nResultValue = (int)mi.Invoke(host,
BindingFlags.DeclaredOnly |
BindingFlags.Public | BindingFlags.NonPublic |
BindingFlags.Instance | BindingFlags.InvokeMethod,
null,
args,
null);
// 取出out参数值
strError = (string)args[1];
}
else if (parameters.Length == 3)
{
object[] args = new object[3];
args[0] = strLibraryCodeList;
args[1] = strBarcode;
args[2] = strError;
nResultValue = (int)mi.Invoke(host,
BindingFlags.DeclaredOnly |
BindingFlags.Public | BindingFlags.NonPublic |
BindingFlags.Instance | BindingFlags.InvokeMethod,
null,
args,
null);
// 取出out参数值
strError = (string)args[2];
}
else
{
strError = "脚本函数 VerifyBarcode() 的参数个数不正确，应该为 2 或者 3 个";
return -1;
}
}
catch (Exception ex)
{
strError = "执行脚本函数'" + "VerifyBarcode" + "'出错：" + ExceptionUtil.GetDebugText(ex);
return -1;
}
return 0;
}
// return:
// -1 调用出错
// 0 校验正确
// 1 校验发现错误
public virtual int VerifyItem(
LibraryHost host,
string strAction,
XmlDocument itemdom,
out string strError)
{
strError = "";
return 0;
}
public override int VerifyItem(
LibraryHost host,
string strAction,
XmlDocument itemdom,
out string strError)
{
strError = "";
// 执行函数
try
{
return host.VerifyComment(strAction,
itemdom,
out strError);
}
catch (Exception ex)
{
strError = "执行脚本函数 '" + "VerifyComment" + "' 时出错：" + ExceptionUtil.GetDebugText(ex);
return -1;
}
return 0;
}
