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  • :: Help Needed to parse ksoap response using J2ME ::

    - by Sachin
    Hi Guys, I am developing a mobile application using J2ME, LWUIT and KSOAP. The application makes .net webservice calls and fetches responses. I am able to successfully make calls and receive respone, but not able to parse the response, due to my limited knowledge in java. following is my WSDL file and j2me code snippet used to make calls. The WSDL file has complex and SIMPLETYPE elements, which needs to be mapped to JAVA classes. i request you guys to help me out with any pointers or sample code. WSDL file: <?xml version="1.0" encoding="utf-8"?> <wsdl:definitions xmlns:soap="http://schemas.xmlsoap.org/wsdl/soap/" xmlns:tm="http://microsoft.com/wsdl/mime/textMatching/" xmlns:soapenc="http://schemas.xmlsoap.org/soap/encoding/" xmlns:mime="http://schemas.xmlsoap.org/wsdl/mime/" xmlns:tns="http://tempuri.org/" xmlns:s="http://www.w3.org/2001/XMLSchema" xmlns:soap12="http://schemas.xmlsoap.org/wsdl/soap12/" xmlns:http="http://schemas.xmlsoap.org/wsdl/http/" targetNamespace="http://tempuri.org/" xmlns:wsdl="http://schemas.xmlsoap.org/wsdl/"> <wsdl:types> <s:schema elementFormDefault="qualified" targetNamespace="http://tempuri.org/"> <s:element name="Login"> <s:complexType> <s:sequence> <s:element minOccurs="0" maxOccurs="1" name="userLoginID" type="s:string" /> <s:element minOccurs="0" maxOccurs="1" name="password" type="s:string" /> </s:sequence> </s:complexType> </s:element> <s:element name="LoginResponse"> <s:complexType> <s:sequence> <s:element minOccurs="1" maxOccurs="1" name="User" nillable="true" type="tns:UserBin" /> </s:sequence> </s:complexType> </s:element> <s:complexType name="UserBin" abstract="true"> <s:sequence> <s:element minOccurs="1" maxOccurs="1" name="CompanyCodeSeqId" type="s:int" /> <s:element minOccurs="0" maxOccurs="1" name="Image" type="s:base64Binary" /> <s:element minOccurs="1" maxOccurs="1" name="DateOfBirth" type="s:dateTime" /> <s:element minOccurs="1" maxOccurs="1" name="UserSeqId" type="s:int" /> <s:element minOccurs="0" maxOccurs="1" name="UserFirstName" type="s:string" /> <s:element minOccurs="0" maxOccurs="1" name="UserLastName" type="s:string" /> <s:element minOccurs="0" maxOccurs="1" name="PassWord" type="s:string" /> <s:element minOccurs="1" maxOccurs="1" name="UserRole" type="tns:Roles" /> <s:element minOccurs="1" maxOccurs="1" name="UserSSN" type="s:int" /> <s:element minOccurs="0" maxOccurs="1" name="EmailId" type="s:string" /> <s:element minOccurs="0" maxOccurs="1" name="MobileNumber" type="s:string" /> <s:element minOccurs="1" maxOccurs="1" name="CreatedDate" type="s:dateTime" /> <s:element minOccurs="1" maxOccurs="1" name="ModifiedDate" type="s:dateTime" /> <s:element minOccurs="1" maxOccurs="1" name="UserGroup" type="tns:UserGroups" /> <s:element minOccurs="1" maxOccurs="1" name="SecretQuestionID" type="s:int" /> <s:element minOccurs="0" maxOccurs="1" name="SecretAnswer" type="s:string" /> <s:element minOccurs="0" maxOccurs="1" name="WorkPhone" type="s:string" /> <s:element minOccurs="0" maxOccurs="1" name="HomePhone" type="s:string" /> <s:element minOccurs="0" maxOccurs="1" name="Company" type="s:string" /> <s:element minOccurs="1" maxOccurs="1" name="PreviousLoginTime" type="s:dateTime" /> <s:element minOccurs="1" maxOccurs="1" name="LoginTime" type="s:dateTime" /> </s:sequence> </s:complexType> <s:simpleType name="Roles"> <s:restriction base="s:string"> <s:enumeration value="Guest" /> <s:enumeration value="Customer" /> <s:enumeration value="Driver" /> <s:enumeration value="Dispatcher" /> <s:enumeration value="CompanyCodeAdmin" /> </s:restriction> </s:simpleType> <s:simpleType name="UserGroups"> <s:restriction base="s:string"> <s:enumeration value="Invalid" /> <s:enumeration value="Customer" /> <s:enumeration value="Driver" /> <s:enumeration value="Dispatcher" /> </s:restriction> </s:simpleType> <s:complexType name="DriverBin"> <s:complexContent mixed="false"> <s:extension base="tns:UserBin"> <s:sequence> <s:element minOccurs="1" maxOccurs="1" name="DriverGroupId" type="s:int" /> <s:element minOccurs="1" maxOccurs="1" name="DriverTypeId" type="s:int" /> <s:element minOccurs="1" maxOccurs="1" name="HireDate" type="s:dateTime" /> <s:element minOccurs="0" maxOccurs="1" name="LicenceNumber" type="s:string" /> <s:element minOccurs="1" maxOccurs="1" name="ExpiryDateForLicence" type="s:dateTime" /> <s:element minOccurs="0" maxOccurs="1" name="VehicleNumber" type="s:string" /> <s:element minOccurs="0" maxOccurs="1" name="EmergencyName" type="s:string" /> <s:element minOccurs="0" maxOccurs="1" name="EmergencyPhone" type="s:string" /> <s:element minOccurs="0" maxOccurs="1" name="EmergencyAddress" type="s:string" /> <s:element minOccurs="0" maxOccurs="1" name="EmergencyRelationship" type="s:string" /> <s:element minOccurs="0" maxOccurs="1" name="DriverType" type="s:string" /> <s:element minOccurs="0" maxOccurs="1" name="DriverGroupName" type="s:string" /> <s:element minOccurs="1" maxOccurs="1" name="VehicleID" type="s:int" /> <s:element minOccurs="0" maxOccurs="1" name="SocialSN" type="s:string" /> <s:element minOccurs="0" maxOccurs="1" name="StreetAddress" type="s:string" /> <s:element minOccurs="1" maxOccurs="1" name="City" type="s:int" /> <s:element minOccurs="1" maxOccurs="1" name="State" type="s:int" /> <s:element minOccurs="0" maxOccurs="1" name="Zip" type="s:string" /> <s:element minOccurs="1" maxOccurs="1" name="EmergencyCity" type="s:int" /> <s:element minOccurs="1" maxOccurs="1" name="EmergencyState" type="s:int" /> <s:element minOccurs="0" maxOccurs="1" name="EmergencyZip" type="s:string" /> <s:element minOccurs="1" maxOccurs="1" name="TerminationDate" type="s:dateTime" /> <s:element minOccurs="1" maxOccurs="1" name="HireAgainFlag" type="s:boolean" /> <s:element minOccurs="0" maxOccurs="1" name="TerminationReason" type="s:string" /> <s:element minOccurs="0" maxOccurs="1" name="Notes" type="s:string" /> <s:element minOccurs="0" maxOccurs="1" name="ImageName" type="s:string" /> </s:sequence> </s:extension> </s:complexContent> </s:complexType> <s:complexType name="CustomerBin"> <s:complexContent mixed="false"> <s:extension base="tns:UserBin"> <s:sequence> <s:element minOccurs="0" maxOccurs="1" name="PassengesDetails" type="tns:ArrayOfPassengerBin" /> <s:element minOccurs="0" maxOccurs="1" name="CompanyName" type="s:string" /> <s:element minOccurs="0" maxOccurs="1" name="CreditCardDetailsArray" type="tns:ArrayOfCreditCardDetailsBin" /> <s:element minOccurs="0" maxOccurs="1" name="AddressArray" type="tns:ArrayOfAddressBin" /> <s:element minOccurs="1" maxOccurs="1" name="CustomerCompanyID" type="s:int" /> <s:element minOccurs="1" maxOccurs="1" name="CustomerType" type="tns:CustomerType" /> <s:element minOccurs="0" maxOccurs="1" name="PassengerGradeName" type="s:string" /> <s:element minOccurs="1" maxOccurs="1" name="PassengerGradeID" type="s:int" /> </s:sequence> </s:extension> </s:complexContent> </s:complexType> <s:complexType name="ArrayOfPassengerBin"> <s:sequence> <s:element minOccurs="0" maxOccurs="unbounded" name="PassengerBin" nillable="true" type="tns:PassengerBin" /> </s:sequence> </s:complexType> <s:complexType name="PassengerBin"> <s:sequence> <s:element minOccurs="1" maxOccurs="1" name="CustomerSeqID" type="s:int" /> <s:element minOccurs="0" maxOccurs="1" name="EmailID" type="s:string" /> <s:element minOccurs="0" maxOccurs="1" name="PhoneNumber" type="s:string" /> <s:element minOccurs="0" maxOccurs="1" name="LastName" type="s:string" /> <s:element minOccurs="0" maxOccurs="1" name="FirstName" type="s:string" /> <s:element minOccurs="1" maxOccurs="1" name="PassengerSeqID" nillable="true" type="s:int" /> <s:element minOccurs="1" maxOccurs="1" name="IsSelf" type="s:boolean" /> </s:sequence> </s:complexType> <s:complexType name="ArrayOfCreditCardDetailsBin"> <s:sequence> <s:element minOccurs="0" maxOccurs="unbounded" name="CreditCardDetailsBin" nillable="true" type="tns:CreditCardDetailsBin" /> </s:sequence> </s:complexType> <s:complexType name="CreditCardDetailsBin"> <s:sequence> <s:element minOccurs="1" maxOccurs="1" name="CardSeqID" nillable="true" type="s:int" /> <s:element minOccurs="1" maxOccurs="1" name="ExpiryYear" type="s:int" /> <s:element minOccurs="1" maxOccurs="1" name="ExpiryMonth" type="s:int" /> <s:element minOccurs="0" maxOccurs="1" name="CardType" type="s:string" /> <s:element minOccurs="0" maxOccurs="1" name="NickName" type="s:string" /> <s:element minOccurs="1" maxOccurs="1" name="CVVNumber" type="s:int" /> <s:element minOccurs="0" maxOccurs="1" name="CreditCardNumber" type="s:string" /> <s:element minOccurs="0" maxOccurs="1" name="NameOnTheCard" type="s:string" /> <s:element minOccurs="0" maxOccurs="1" name="ZipCode" type="s:string" /> <s:element minOccurs="1" maxOccurs="1" name="IsPrimary" type="s:boolean" /> </s:sequence> </s:complexType> <s:complexType name="ArrayOfAddressBin"> <s:sequence> <s:element minOccurs="0" maxOccurs="unbounded" name="AddressBin" nillable="true" type="tns:AddressBin" /> </s:sequence> </s:complexType> <s:complexType name="AddressBin"> <s:sequence> <s:element minOccurs="1" maxOccurs="1" name="UserSeqID" type="s:int" /> <s:element minOccurs="1" maxOccurs="1" name="AddressID" nillable="true" type="s:int" /> <s:element minOccurs="1" maxOccurs="1" name="ZipCode" type="s:int" /> <s:element minOccurs="1" maxOccurs="1" name="IsPrimary" type="s:boolean" /> <s:element minOccurs="0" maxOccurs="1" name="State" type="s:string" /> <s:element minOccurs="1" maxOccurs="1" name="StateID" type="s:int" /> <s:element minOccurs="0" maxOccurs="1" name="StateCode" type="s:string" /> <s:element minOccurs="0" maxOccurs="1" name="City" type="s:string" /> <s:element minOccurs="1" maxOccurs="1" name="CityID" type="s:int" /> <s:element minOccurs="0" maxOccurs="1" name="StreetAddress" type="s:string" /> <s:element minOccurs="0" maxOccurs="1" name="NickName" type="s:string" /> </s:sequence> </s:complexType> <s:simpleType name="CustomerType"> <s:restriction base="s:string"> <s:enumeration value="Individual" /> <s:enumeration value="Corporate" /> </s:restriction> </s:simpleType> <s:complexType name="DispatcherBin"> <s:complexContent mixed="false"> <s:extension base="tns:UserBin"> <s:sequence> <s:element minOccurs="0" maxOccurs="1" name="Address1" type="s:string" /> <s:element minOccurs="0" maxOccurs="1" name="Address2" type="s:string" /> <s:element minOccurs="0" maxOccurs="1" name="City" type="s:string" /> <s:element minOccurs="0" maxOccurs="1" name="Province" type="s:string" /> <s:element minOccurs="0" maxOccurs="1" name="ZipCode" type="s:string" /> <s:element minOccurs="1" maxOccurs="1" name="IsActive" type="s:boolean" /> <s:element minOccurs="1" maxOccurs="1" name="DispatcherHireDate" type="s:dateTime" /> <s:element minOccurs="1" maxOccurs="1" name="DispatcherSSN" type="s:int" /> <s:element minOccurs="1" maxOccurs="1" name="TerminationDate" type="s:dateTime" /> <s:element minOccurs="0" maxOccurs="1" name="ReasonForTermination" type="s:string" /> <s:element minOccurs="1" maxOccurs="1" name="HireAgainFlag" type="s:boolean" /> <s:element minOccurs="0" maxOccurs="1" name="EmergencyContactName" type="s:string" /> <s:element minOccurs="0" maxOccurs="1" name="EmergencyContactNumber" type="s:string" /> <s:element minOccurs="0" maxOccurs="1" name="EmergencyContactAddress" type="s:string" /> <s:element minOccurs="0" maxOccurs="1" name="EmergencyContactRelationship" type="s:string" /> <s:element minOccurs="1" maxOccurs="1" name="HireDate" type="s:dateTime" /> </s:sequence> </s:extension> </s:complexContent> </s:complexType> <s:element name="Logout"> <s:complexType> <s:sequence> <s:element minOccurs="0" maxOccurs="1" name="userLoginID" type="s:string" /> <s:element minOccurs="0" maxOccurs="1" name="password" type="s:string" /> <s:element minOccurs="1" maxOccurs="1" name="userSeqID" type="s:int" /> <s:element minOccurs="0" maxOccurs="1" name="validationKey" type="s:string" /> </s:sequence> </s:complexType> </s:element> <s:element name="LogoutResponse"> <s:complexType /> </s:element> </s:schema> </wsdl:types> <wsdl:message name="LoginSoapIn"> <wsdl:part name="parameters" element="tns:Login" /> </wsdl:message> <wsdl:message name="LoginSoapOut"> <wsdl:part name="parameters" element="tns:LoginResponse" /> </wsdl:message> <wsdl:message name="LogoutSoapIn"> <wsdl:part name="parameters" element="tns:Logout" /> </wsdl:message> <wsdl:message name="LogoutSoapOut"> <wsdl:part name="parameters" element="tns:LogoutResponse" /> </wsdl:message> <wsdl:portType name="AccountManagementSoap"> <wsdl:operation name="Login"> <wsdl:input message="tns:LoginSoapIn" /> <wsdl:output message="tns:LoginSoapOut" /> </wsdl:operation> <wsdl:operation name="Logout"> <wsdl:input message="tns:LogoutSoapIn" /> <wsdl:output message="tns:LogoutSoapOut" /> </wsdl:operation> </wsdl:portType> <wsdl:binding name="AccountManagementSoap" type="tns:AccountManagementSoap"> <soap:binding transport="http://schemas.xmlsoap.org/soap/http" /> <wsdl:operation name="Login"> <soap:operation soapAction="http://tempuri.org/Login" style="document" /> <wsdl:input> <soap:body use="literal" /> </wsdl:input> <wsdl:output> <soap:body use="literal" /> </wsdl:output> </wsdl:operation> <wsdl:operation name="Logout"> <soap:operation soapAction="http://tempuri.org/Logout" style="document" /> <wsdl:input> <soap:body use="literal" /> </wsdl:input> <wsdl:output> <soap:body use="literal" /> </wsdl:output> </wsdl:operation> </wsdl:binding> <wsdl:binding name="AccountManagementSoap12" type="tns:AccountManagementSoap"> <soap12:binding transport="http://schemas.xmlsoap.org/soap/http" /> <wsdl:operation name="Login"> <soap12:operation soapAction="http://tempuri.org/Login" style="document" /> <wsdl:input> <soap12:body use="literal" /> </wsdl:input> <wsdl:output> <soap12:body use="literal" /> </wsdl:output> </wsdl:operation> <wsdl:operation name="Logout"> <soap12:operation soapAction="http://tempuri.org/Logout" style="document" /> <wsdl:input> <soap12:body use="literal" /> </wsdl:input> <wsdl:output> <soap12:body use="literal" /> </wsdl:output> </wsdl:operation> </wsdl:binding> <wsdl:service name="AccountManagement"> <wsdl:port name="AccountManagementSoap" binding="tns:AccountManagementSoap"> <soap:address location="http://webservice.mcubeit.com/trs_webservice/services/AccountManagement.asmx" /> </wsdl:port> <wsdl:port name="AccountManagementSoap12" binding="tns:AccountManagementSoap12"> <soap12:address location="http://webservice.mcubeit.com/trs_webservice/services/AccountManagement.asmx" /> </wsdl:port> </wsdl:service> </wsdl:definitions> J2ME Code Snippet: String uname = username.getText(); String pass = password.getText(); String serviceUrl = "http://xxx.xxx.xxx/webservice/services/AccountManagement.asmx"; String serviceNameSpace = "http://tempuri.org/"; String soapAction = "http://tempuri.org/Login"; String methodName = "Login"; SoapObject rpc = new SoapObject(serviceNameSpace, methodName); rpc.addProperty("userLoginID", uname.trim()); rpc.addProperty("password", pass.trim()); //rpc.addProperty("userSeqID", String.valueOf(192).toString()); SoapSerializationEnvelope envelope = new SoapSerializationEnvelope(SoapEnvelope.VER11); envelope.bodyOut = rpc; envelope.dotNet = true; envelope.encodingStyle = SoapSerializationEnvelope.ENC; HttpTransport ht = new HttpTransport(serviceUrl); ht.debug = true; ht.setXmlVersionTag("<?xml version=\"1.0\" encoding=\"UTF-8\"?>"); String result = null; try { ht.call(soapAction, envelope); result = (envelope.getResponse()).toString(); System.out.println("Result :" + result.toString()); } catch (org.xmlpull.v1.XmlPullParserException ex2) { System.out.println("XmlPullParserException :" + ex2.toString()); System.out.println("Request \n" + ht.requestDump); System.out.println("Response \n" + ht.responseDump); } catch (SoapFault sf) { System.out.println("SoapFault :" + sf.faultstring); System.out.println("Request \n" + ht.requestDump); System.out.println("Response \n" + ht.responseDump); } catch (IOException ioe) { System.out.println("IOException :" + ioe.toString()); System.out.println("Request \n" + ht.requestDump); System.out.println("Response \n" + ht.responseDump); } RESPONSE Result :CustomerBin{CompanyCodeSeqId=-1; Image=AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA==; DateOfBirth=1900-01-01T00:00:00; UserSeqId=192; UserFirstName=Sachin; UserLastName=Nevase; PassWord=anyType{}; UserRole=Customer; UserSSN=-2147483648; [email protected]; MobileNumber=804131244; CreatedDate=1900-01-01T00:00:00; ModifiedDate=1900-01-01T00:00:00; UserGroup=Customer; SecretQuestionID=-2147483648; SecretAnswer=anyType{}; WorkPhone=anyType{}; HomePhone=anyType{}; Company=anyType{}; PreviousLoginTime=2010-05-04T23:38:34; LoginTime=1900-01-01T00:00:00; PassengesDetails=anyType{PassengerBin=anyType{CustomerSeqID=192; [email protected]; PhoneNumber=0804131244; LastName=Nevase; FirstName=Sachin; PassengerSeqID=55; IsSelf=true; }; }; CustomerCompanyID=-1; CustomerType=Individual; PassengerGradeName=Grade1; PassengerGradeID=1; } Thanks, Sachin

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  • Generic styles for DataGridTemplateColumn Headers & Cells

    - by user557765
    I am struggling to define templates for my DataGrid columns. Here is the code that I have working at the moment: <t:DataGrid.Columns> <t:DataGridTemplateColumn Width="75" > <t:DataGridTemplateColumn.HeaderTemplate> <DataTemplate> <TextBlock Style="{StaticResource FieldNameVertical}" Text="Date" /> </DataTemplate> </t:DataGridTemplateColumn.HeaderTemplate> <t:DataGridTemplateColumn.CellTemplate> <DataTemplate> <TextBlock Style="{StaticResource FieldValue}" Text="{Binding ModifiedDate, StringFormat='{}{0:MM/dd/yyyy}'}" /> </DataTemplate> </t:DataGridTemplateColumn.CellTemplate> </t:DataGridTemplateColumn> .. .. .. </t:DataGrid.Columns> I would like to define HeaderTemplate & CellTemplate as reusable styles -- so that each column would be as brief as something like this: <t:DataGrid.Resources> <DataTemplate x:Key="dgHeaderStyle"> <TextBlock Style="{StaticResource FieldNameVertical}" Text="{Binding}" /> </DataTemplate> <DataTemplate x:Key="dgCellStyle"> <TextBlock Style="{StaticResource FieldValue}" Text="{Binding}" /> </DataTemplate> </t:DataGrid.Resources> <t:DataGrid.Columns> <t:DataGridTemplateColumn Width="75" Header="Date" Binding="{Binding ModifiedDate, StringFormat='{}{0:MM/dd/yyyy}'}" HeaderTemplate="{StaticResource dgHeaderStyle}" CellTemplate="{StaticResource dgCellStyle}" /> <t:DataGridTemplateColumn Width="100" Header="Dealer" HeaderTemplate="{StaticResource dgHeaderStyle}" CellTemplate="{StaticResource dgCellStyle}" /> ... </t:DataGrid.Columns> Every attempt I make has failed. I had hoped to implement something like the "solution" snippet in the initial entry of WPF DataGrid HeaderTemplate Mysterious Padding. However, I can't seem to adapt it to what I'm doing.

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  • WCF Webservices and FaultContract - Client's receiving SoapExc insted of FaultException<TDetails>

    - by Alessandro Di Lello
    Hi All, i'm developing a WCF Webservice and consuming it within a mvc2 application. My problem is that i'm using FaultContracts on my methods with a custom FaultDetail and i'm throwing manyally the faultexception but when the client receive the exception , it receives a normal SoapException instead of my FaultException that i throwed from the service side. Here is some code: Custom Fault Detail Class: [DataContract] public class MyFaultDetails { [DataMember] public string Message { get; set; } } Operation on service contract: [OperationContract] [FaultContract(typeof(MyFaultDetails))] void ThrowException(); Implementation: public void ThrowException() { var details = new MyFaultDetails { Message = "Exception Test" }; throw new FaultException<MyFaultDetails >(details , new FaultReason(details .Message), new FaultCode("MyFault")); } Client side: try { // Obv proxy init etc.. service.ThrowException(); } catch (FaultException<MyFaultDetails> ex) { // stuff } catch (Exception ex) { // stuff } What i expect is to catch the FaultException , instead that catch is skipped and the next catch is taken with an exception of type SoapException. Am i missing something ? i red a lot of threads about using faultcontracts within wcf and what i did seems to be good. I had a look at the wsdl and xsd generated and they look fine. here's a snippet regarding this method: <wsdl:operation name="ThrowException"> <wsdl:input wsaw:Action="http://tempuri.org/IAnyJobService/ThrowException" message="tns:IAnyJobService_ThrowException_InputMessage" /> <wsdl:output wsaw:Action="http://tempuri.org/IAnyJobService/ThrowExceptionResponse" message="tns:IAnyJobService_ThrowException_OutputMessage" /> <wsdl:fault wsaw:Action="http://tempuri.org/IAnyJobService/ThrowExceptionAnyJobServiceFaultExceptionFault" name="AnyJobServiceFaultExceptionFault" message="tns:IAnyJobService_ThrowException_AnyJobServiceFaultExceptionFault_FaultMessage" /> </wsdl:operation> <wsdl:operation name="ThrowException"> <soap:operation soapAction="http://tempuri.org/IAnyJobService/ThrowException" style="document" /> <wsdl:input> <soap:body use="literal" /> </wsdl:input> <wsdl:output> <soap:body use="literal" /> </wsdl:output> <wsdl:fault name="AnyJobServiceFaultExceptionFault"> <soap:fault use="literal" name="AnyJobServiceFaultExceptionFault" namespace="" /> </wsdl:fault> </wsdl:operation> Any help ? Thanks in advance Regards Alessandro

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  • Wordpress 403/404 Errors: You don't have permission to access /wp-admin/themes.php on this server

    - by Glen
    Some background: I setup six blogs this week, all using Wordpress 2.92, installed with Fantastico on a baby croc plan with Hostgator. I used the same theme (heatmap 2.5.4) and plugins for each blog. They were all up and running, no issues at all. I go to create a new blog this morning, using the same setup, and when I try to change the theme settings, I get the following error: Forbidden You don't have permission to access /wp-admin/themes.php on this server. Additionally, a 404 Not Found error was encountered while trying to use an ErrorDocument to handle the request. Apache/2.2.15 (Unix) mod_ssl/2.2.15 OpenSSL/0.9.8n DAV/2 mod_fcgid/2.3.5 mod_auth_passthrough/2.1 mod_bwlimited/1.4 FrontPage/5.0.2.2635 Server at http://www.mydomain.com Port 80 I tried uninstalling WP and doing a clean install, still the same issue with a clean installation. So I went back and checked the six other blogs that I had setup over the last week or so, and they are also now giving me 403 or 404 errors when trying to change theme settings, and everytime there's an error it points to either themes.php or functions.php At this point I'm at my wits end trying to figure out what the problem is. Hostgator support looked at it and thought maybe it was a permissions issue but they reset those and I'm still having the problem. At first I thought the problem might have been related to a plugin I recently installed on the previous six blogs that morning (ByREV Fix Missed Shedule Plugin) to deal with a missed schedule bug with WP 2.92, and that maybe that had mucked things up. But then I checked a blog I built months ago, also using the same theme and plugins, and now it too is also encountering the same problem. Any ideas? I tried deleting my htaccess, uploading a blank one, uploading one with this snippet I found on the hostgator forum: # BEGIN WordPress <IfModule mod_rewrite.c> RewriteEngine On RewriteBase / RewriteCond %{REQUEST_FILENAME} !-f RewriteCond %{REQUEST_FILENAME} !-d RewriteRule . /index.php [L] </IfModule> # END WordPress Nothing has worked. I still get 403 or 404 errors everytime. Everything was working perfectly yesterday so I know this setup DOES WORK, I've just mucked something up somewhere and I'm clueless what it is. I read a related thread here and tried chmoding the wp-content folder to 0755 and still having the issue. Any thoughts? Thanks!

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  • WinForms Menu Toolstrip Get Status

    - by Yeti
    So I have a project where there is some automatic initialization going on through some classes that are created automatically as global variables (yeah they are static instances). At a point inside this (it has no relation with the C# GUI for the user, so it isn't derived from any C# class) I need to see if a flag is set or not. I use toolstrip menu with checked and unchecked status in order to set or unset the flag. The problem is that I have difficulties to see if the flag is checked or not from this static class. My class is inside a different project/namespace and a DLL is created what later is linked to the GUI of the application. The GUI depends from this Manager class so making the Manager class to depend from the GUI is not an option. Nevertheless, I should be able to see its state knowing its name or through some other means. I have tried the following: if(Application.OpenForms[1].Owner.Controls["useLocalImageForInitToolStripMenuItem"].Enabled) { }; Now the problem is that on the upper code snippet I get a nasty error. So how do I do this? The toolstrip menu: The error: See the end of this message for details on invoking just-in-time (JIT) debugging instead of this dialog box. ***** Exception Text ******* System.ArgumentOutOfRangeException: Index was out of range. Must be non-negative and less than the size of the collection. Parameter name: index at System.Collections.ArrayList.get_Item(Int32 index) at System.Windows.Forms.FormCollection.get_Item(Int32 index) at Manager.MyMainManager.MyMainManager.RealTimeInit() in C:\Dropbox\My Dropbox\Public\Program Code\RoboCup\Manager\MyMainManager\MyMainManager.cs:line 494 at mainApp.MainForm.ButtonInitClick(Object sender, EventArgs e) in C:\Dropbox\My Dropbox\Public\Program Code\RoboCup\mainApp\MainForm.cs:line 389 at System.Windows.Forms.Control.OnClick(EventArgs e) at System.Windows.Forms.Button.OnClick(EventArgs e) at System.Windows.Forms.Button.OnMouseUp(MouseEventArgs mevent) at System.Windows.Forms.Control.WmMouseUp(Message& m, MouseButtons button, Int32 clicks) at System.Windows.Forms.Control.WndProc(Message& m) at System.Windows.Forms.ButtonBase.WndProc(Message& m) at System.Windows.Forms.Button.WndProc(Message& m) at System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message& m) at System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m) at System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)

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  • Why default constructor does not appear for value types?

    - by Arun
    The below snippet gives me a list of constructors and methods of a type. static void ReflectOnType(Type type) { Console.WriteLine(type.FullName); Console.WriteLine("------------"); List<ConstructorInfo> constructors = type.GetConstructors(BindingFlags.Public | BindingFlags.Static | BindingFlags.NonPublic |BindingFlags.Instance | BindingFlags.Default).ToList(); List<MethodInfo> methods = type.GetMethods().ToList(); Type baseType = type.BaseType; while (baseType != null) { constructors.AddRange(baseType.GetConstructors(BindingFlags.Public | BindingFlags.Static | BindingFlags.NonPublic | BindingFlags.Instance | BindingFlags.Default)); methods.AddRange(baseType.GetMethods()); baseType = baseType.BaseType; } Console.WriteLine("Reflection on {0} type", type.Name); for (int i = 0; i < constructors.Count; i++) { Console.Write("Constructor: {0}.{1}", constructors[i].DeclaringType.Name, constructors[i].Name); Console.Write("("); ParameterInfo[] parameterInfos = constructors[i].GetParameters(); if (parameterInfos.Length > 0) { for (int j = 0; j < parameterInfos.Length; j++) { if (j > 0) { Console.Write(", "); } Console.Write("{0} {1}", parameterInfos[j].ParameterType, parameterInfos[j].Name); } } Console.Write(")"); if (constructors[i].IsSpecialName) { Console.Write(" has 'SpecialName' attribute"); } Console.WriteLine(); } Console.WriteLine(); for (int i = 0; i < methods.Count; i++) { Console.Write("Method: {0}.{1}", methods[i].DeclaringType.Name, methods[i].Name); // Determine whether or not each field is a special name. if (methods[i].IsSpecialName) { Console.Write(" has 'SpecialName' attribute"); } Console.WriteLine(); } } But when I pass an ‘int’ type to this method, why don’t I see the implicit constructor in the output? Or, how do I modify the above code to list the default constructor as well (in case I’m missing something in my code).

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  • PCRE multi line matche problem

    - by Simone Margaritelli
    Hi guys, i have this C++ program (actually it's just a snippet) : #include <iostream> #include <pcre.h> #include <string> using namespace std; int main(){ string pattern = "<a\\s+href\\s*=\\s*\"([^\"]+)\"", html = "<html>\n" "<body>\n" "<a href=\"example_link_1\"/>\n" "<a href=\"example_link_2\"/>\n" "<a href=\"example_link_3\"/>\n" "</body>\n" "</html>"; int i, ccount, rc, *offsets, eoffset; const char *error; pcre *compiled; compiled = pcre_compile( pattern.c_str(), PCRE_CASELESS | PCRE_MULTILINE, &error, &eoffset, 0 ); if( !compiled ){ cerr << "Error compiling the regexp!!" << endl; return 0; } rc = pcre_fullinfo( compiled, 0, PCRE_INFO_CAPTURECOUNT, &ccount ); offsets = new int[ 3 * (ccount + 1) ]; rc = pcre_exec( compiled, 0, html.c_str(), html.length(), 0, 0, offsets, 3 * (ccount + 1) ); if( rc >= 0 ){ for( i = 1; i < rc; ++i ){ cout << "Match : " << html.substr( offsets[2*i], offsets[2*i+1] - offsets[2*i] ) << endl; } } else{ cout << "Sorry, no matches!" << endl; } delete [] offsets; return 0; } As you can see, i'm trying to match html links inside a buffer with the given regular expression (the \\s is \s escaped for C/C++ strings). But, even if in the buffer there are 3 links and the regexp is compiled with the PCRE_CASELESS and PCRE_MULTILINE flags, i match only one element : Match : example_link_1 Note: I start the loop fro index 1 because the pcre library returns the string that matched (not the match itself) as the first element, and the matches follows. What's wrong with this code? The regexp itself i think it's correct (tried in PHP for instance).

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  • Unnecessary scroll bars appearing in IE8

    - by Abhishek Jain
    Hi, In my web app there is a page(ChildPage) which is actually contained in an iframe element of another page(ParentPage). This ChildPage has its contents placed in ContentPlaceHolder of a MasterPage. <div id="DivScroll" runat="server" style="overflow-y: auto; overflow-x: auto; width: 100%; height: 100%;"> <asp:ContentPlaceHolder ID="ContentPlaceHolder1" runat="server"> </asp:ContentPlaceHolder> </div> As apparent in the code, contents of ChildPage are scrollable in the div containing it. There is never the need for the scroll bars of browser to appear and it is working this way till IE7. In IE8 browser scrollbras are appearing due to the presence of the following div in ChildPage. <div class="ReadOnlyFlat" id="Div1" style="z-index: 100; visibility: hidden; overflow: auto; width: 100%; position: absolute; height: 300px" runat="server" ms_positioning="FlowLayout"> <radA:RadAjaxPanel ID="RadAjaxPanelA" EnableOutsideScripts="True" runat="server"> <radT:RadTreeView ID="RadTreeView2" TabIndex="1" runat="server" Skin="web20"> <NodeTemplate> <asp:Label ID="Label2" runat="server">Label</asp:Label> <asp:Label ID="Label4" runat="server" Width="10px"></asp:Label> <asp:Label ID="Label3" runat="server" ForeColor="#FF8000" Font-Bold="True">Label</asp:Label> </NodeTemplate> </radT:RadTreeView> </radA:RadAjaxPanel> What actually happens in IE8 is as follows: The above div Div1 is diaplyed on the click of an ImageButton. On the page load this ImageButton is present on the bottom of the page. In this case IE8 shows browser's vertical scrollbar due to height of Div1. When I scroll DivScroll shown in first code snippet, the ImageButton moves up. When the ImageButton is moved sufficiently up so that it is above the bottommost part of page by more than 300px(i.e, the height of Div1) and if I click the ImageButton, the browser's vertical scrollbars disappear. Browser's vertical scrollbar appears in case the distance between ImageButton and the bottom most part of page is less than height of Div1 and disappears when the distance is more than height of Div1. I need that the browser's vertical scrollbar never appears. Please Help.

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  • How to find the data key on CheckedChanged event of checkbox in ListView in ASP.NET?

    - by subodh
    I am using a list view inside that in item template i am using a label and a checkbox. I want that whenever user clicks on the check box the value should be updated in a table.i am using a datakeys in listview.on the basis of datakey value should be updated in the table. Query is: string updateQuery = "UPDATE [TABLE] SET [COLUMN] = " + Convert.ToInt32(chk.Checked) + " WHERE PK_ID =" + dataKey + " ";` also i want some help in displaying the result as it is inside the table.means if the value for column in table for a particular pkid is 1 then the checkbox shoul be checked. Here is the code snippet: <asp:ListView ID="lvFocusArea" runat="server" DataKeyNames="PK_ID" OnItemDataBound="lvFocusArea_ItemDataBound"> <LayoutTemplate> <table border="0" cellpadding="1" width="400px"> <tr style="background-color: #E5E5FE"> <th align="left"> Focus Area </th> <th> Is Current Focused </th> </tr> <tr id="itemPlaceholder" runat="server"> </tr> </table> </LayoutTemplate> <ItemTemplate> <tr> <td width="80%"> <asp:Label ID="lblFocusArea" runat="server" Text=""><%#Eval("FOCUS_AREA_NAME") %></asp:Label> </td> <td align="center" width="20%"> <asp:CheckBox ID="chkFocusArea" runat="server" OnCheckedChanged="chkFocusArea_CheckedChanged" AutoPostBack="true" /> </td> </tr> </ItemTemplate> <AlternatingItemTemplate> <tr style="background-color: #EFEFEF"> <td> <asp:Label ID="lblFocusArea" runat="server" Text=""><%#Eval("FOCUS_AREA_NAME") %></asp:Label> </td> <td align="center"> <asp:CheckBox ID="chkFocusArea" runat="server" OnCheckedChanged="chkFocusArea_CheckedChanged" AutoPostBack="true" /> </td> </tr> </AlternatingItemTemplate> <SelectedItemTemplate> <td> item selected </td> </SelectedItemTemplate> </asp:ListView> Help me.

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  • AccessViolationException thrown

    - by user255371
    Hi, I’m working on a project that’s written in C# and uses a C++ dll to communicate with a robot. Originally the software was written in C# VS 2003 and was converted to VS 2008 (no change to the code) using .Net 2.0. Now, I started seeing the “Attempted to read or write protected memory…” on some computers. The Access violation error is always thrown when the code calls a particular method from the dll, however, that very same method is called over and over throughout the task and executes fine, just sometimes it throws the error. Also, the robot seems to execute the command fine which tells me that the values passed into the dll exist and thus are accessible. The software with the .Net 1.1 has been used for years and worked fine without ever throwing any memory errors. Now that it has been using .Net 2.0 it throws errors on some computers only. I’m not sure what’s causing the issue. I ruled out inappropriate calling (incorrect marshalling …) of the dll methods as it has been working fine with .Net 1.1 for years and thus should work fine in .Net 2.0 as well. I’ve seen some posts suggesting that it could be the GC, but then again why would it only happen on this one computer and only sometimes. Also, the values passed in are all global variables in the C# code and thus they should exist until the application is shut down and GC has no business moving any of those around or deleting them. Another observation, as I mentioned above, the robot executes the command normally which means that it gets all its necessary values. Not sure what the C++ dll’s method would do at the end where the GC could mess up stuff. It shouldn’t try to delete the global variables passed in and the method is not modifying those variables either (I’m not expecting any return values through the passed in values, the only return value is the method return which again shouldn’t have anything to do with GC.) One important piece of information I should add is that I have no access to the C++ code and thus cannot make any changes there. The fix has to come through the C# code or some settings on the computer or something else that I am in control of. Any help greatly appreciated. Thanks. Code snippet: Original method call in VS 2003 [DllImport("TOOLB32.dll",EntryPoint="TbxMoveWash")] public static extern int TbxMoveWash(int tArmId, string lpszCarrierRackId, int eZSelect, int[] lpTipSet, int tVol, bool bFastW); which I modified after seeing the error to the following (but the error still occurs): [DllImport("TOOLB32.dll",EntryPoint="TbxMoveWash")] public static extern int TbxMoveWash(int tArmId, string lpszCarrierRackId, int eZSelect, [MarshalAs(UnmanagedType.LPArray, SizeConst = 8)] int[] lpTipSet, int tVol, bool bFastW);

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  • Connecting to a WSE 3.0 Web Service From a WCF Client

    - by Dave
    I'm having difficulty connecting to a 3rd party WSE 3.0 web service from a WCF client. I have implemented the custom binding class as indicated in this KB article: http://msdn.microsoft.com/en-us/library/ms734745.aspx The problem seems to have to do with the security assertion used by the web service - UsernameOverTransport. When I attempt to call a method, I get the following exception: System.InvalidOperationException: The 'WseHttpBinding'.'[namespace]' binding for the 'MyWebServiceSoap'.'[namespace]' contract is configured with an authentication mode that requires transport level integrity and confidentiality. However the transport cannot provide integrity and confidentiality.. It is expecting a username, password, and CN number. In the example code supplied to us by the vendor, these credentials are bundled in a Microsoft.Web.Services3.Security.Tokens.UsernameToken. Here's the example supplied by the vendor: MyWebServiceWse proxy = new MyWebServiceWse(); UsernameToken token = new UsernameToken("Username", "password", PasswordOption.SendPlainText); token.Id = "<supplied CN Number>"; proxy.SetClientCredential(token); proxy.SetPolicy(new Policy(new UsernameOverTransportAssertion(), new RequireActionHeaderAssertion())); MyObject mo = proxy.MyMethod(); This works fine from a 2.0 app w/ WSE 3.0 installed. Here is a snippet of the code from my WCF client: EndpointAddress address = new EndpointAddress(new Uri("<web service uri here>")); WseHttpBinding binding = new WseHttpBinding(); // This is the custom binding I created per the MS KB article binding.SecurityAssertion = WseSecurityAssertion.UsernameOverTransport; binding.EstablishSecurityContext = false; // Not sure about the value of either of these next two binding.RequireDerivedKeys = true; binding.MessageProtectionOrder = MessageProtectionOrder.SignBeforeEncrypt; MembershipServiceSoapClient proxy = new MembershipServiceSoapClient(binding, address); // This is where I believe the problem lies – I can’t seem to properly setup the security credentials the web service is expecting proxy.ClientCredentials.UserName.UserName = "username"; proxy.ClientCredentials.UserName.Password = "pwd"; // How do I supply the CN number? MyObject mo = proxy.MyMethod(); // this throws the exception I've scoured the web looking for an answer to this question. Some sources get me close (like the MS KB article), but I can't seem to get over the hump. Can someone help me out?

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  • When will the ValueConverter's Convert method be called in wpf

    - by sudarsanyes
    I have an ObservableCollection bound to a list box and a boolean property bound to a button. I then defined two converters, one that operates on the collection and the other operates on the boolean property. Whenever I modify the boolean property, the converter's Convert method is called, where as the same is not called if I modify the observable collection. What am I missing?? Snippets for your reference, xaml snipet, <Window.Resources> <local:WrapPanelWidthConverter x:Key="WrapPanelWidthConverter" /> <local:StateToColorConverter x:Key="StateToColorConverter" /> </Window.Resources> <StackPanel> <ListBox x:Name="NamesListBox" ItemsSource="{Binding Path=Names}"> <ListBox.ItemsPanel> <ItemsPanelTemplate> <WrapPanel x:Name="ItemWrapPanel" Width="500" Background="Gray"> <WrapPanel.RenderTransform> <TranslateTransform x:Name="WrapPanelTranslatation" X="0" /> </WrapPanel.RenderTransform> <WrapPanel.Triggers> <EventTrigger RoutedEvent="WrapPanel.Loaded"> <BeginStoryboard> <Storyboard> <DoubleAnimation Storyboard.TargetName="WrapPanelTranslatation" Storyboard.TargetProperty="X" To="{Binding Path=Names,Converter={StaticResource WrapPanelWidthConverter}}" From="525" Duration="0:0:2" RepeatBehavior="100" /> </Storyboard> </BeginStoryboard> </EventTrigger> </WrapPanel.Triggers> </WrapPanel> </ItemsPanelTemplate> </ListBox.ItemsPanel> <ListBox.ItemTemplate> <DataTemplate> <Grid> <Label Content="{Binding}" Width="50" Background="LightGray" /> </Grid> </DataTemplate> </ListBox.ItemTemplate> </ListBox> <Button Content="{Binding Path=State}" Background="{Binding Path=State, Converter={StaticResource StateToColorConverter}}" Width="100" Height="100" Click="Button_Click" /> </StackPanel> code behind snippet public class WrapPanelWidthConverter : IValueConverter { public object Convert(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture) { ObservableCollection<string> aNames = value as ObservableCollection<string>; return -(aNames.Count * 50); } public object ConvertBack(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture) { throw new NotImplementedException(); } } public class StateToColorConverter : IValueConverter { public object Convert(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture) { bool aState = (bool)value; if (aState) return Brushes.Green; else return Brushes.Red; } public object ConvertBack(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture) { throw new NotImplementedException(); } }

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  • Modeling distribution of performance measurements

    - by peterchen
    How would you mathematically model the distribution of repeated real life performance measurements - "Real life" meaning you are not just looping over the code in question, but it is just a short snippet within a large application running in a typical user scenario? My experience shows that you usually have a peak around the average execution time that can be modeled adequately with a Gaussian distribution. In addition, there's a "long tail" containing outliers - often with a multiple of the average time. (The behavior is understandable considering the factors contributing to first execution penalty). My goal is to model aggregate values that reasonably reflect this, and can be calculated from aggregate values (like for the Gaussian, calculate mu and sigma from N, sum of values and sum of squares). In other terms, number of repetitions is unlimited, but memory and calculation requirements should be minimized. A normal Gaussian distribution can't model the long tail appropriately and will have the average biased strongly even by a very small percentage of outliers. I am looking for ideas, especially if this has been attempted/analysed before. I've checked various distributions models, and I think I could work out something, but my statistics is rusty and I might end up with an overblown solution. Oh, a complete shrink-wrapped solution would be fine, too ;) Other aspects / ideas: Sometimes you get "two humps" distributions, which would be acceptable in my scenario with a single mu/sigma covering both, but ideally would be identified separately. Extrapolating this, another approach would be a "floating probability density calculation" that uses only a limited buffer and adjusts automatically to the range (due to the long tail, bins may not be spaced evenly) - haven't found anything, but with some assumptions about the distribution it should be possible in principle. Why (since it was asked) - For a complex process we need to make guarantees such as "only 0.1% of runs exceed a limit of 3 seconds, and the average processing time is 2.8 seconds". The performance of an isolated piece of code can be very different from a normal run-time environment involving varying levels of disk and network access, background services, scheduled events that occur within a day, etc. This can be solved trivially by accumulating all data. However, to accumulate this data in production, the data produced needs to be limited. For analysis of isolated pieces of code, a gaussian deviation plus first run penalty is ok. That doesn't work anymore for the distributions found above. [edit] I've already got very good answers (and finally - maybe - some time to work on this). I'm starting a bounty to look for more input / ideas.

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  • Running XPath on child node.

    - by Jeeyoung Kim
    Hi. I'm trying to do a xpath lookup on nodes returned by xpath lookup, but it doesn't seem to work as I expected.XPaths executed on the child nodes of a document seem to be executd against hthe root node of the document (in the example, the inventory tag.), instead of the root of the provided node. Am I missing something here? I'm new to XPath. Also, please don't answer "just do //book[author='Neal Stephenson'/title". I have a legitimate use case, and this is a simplified example. Code snippet DocumentBuilderFactory domFactory = DocumentBuilderFactory.newInstance(); domFactory.setNamespaceAware(true); DocumentBuilder builder = domFactory.newDocumentBuilder(); Document doc = builder.parse("src/main/java/books.xml"); XPathFactory factory = XPathFactory.newInstance(); XPath xpath = factory.newXPath(); Node book = (Node) xpath.evaluate("//book[author='Neal Stephenson']", doc, XPathConstants.NODE); Node title = (Node) xpath.evaluate("/title", book, XPathConstants.NODE); // I get null here. Node inventory = (Node) xpath.evaluate("/inventory", book, XPathConstants.NODE); // this returns a node. book.xml <inventory> <book year="2000"> <title>Snow Crash</title> <author>Neal Stephenson</author> <publisher>Spectra</publisher> <isbn>0553380958</isbn> <price>14.95</price> </book> <book year="2005"> <title>Burning Tower</title> <author>Larry Niven</author> <author>Jerry Pournelle</author> <publisher>Pocket</publisher> <isbn>0743416910</isbn> <price>5.99</price> </book> <book year="1995"> <title>Zodiac</title> <author>Neal Stephenson</author> <publisher>Spectra</publisher> <isbn>0553573862</isbn> <price>7.50</price> </book> <!-- more books... --> </inventory>

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  • Specialization of template after instantiation?

    - by Onur Cobanoglu
    Hi, My full code is too long, but here is a snippet that will reflect the essence of my problem: class BPCFGParser { public: ... ... class Edge { ... ... }; class ActiveEquivClass { ... ... }; class PassiveEquivClass { ... ... }; struct EqActiveEquivClass { ... ... }; struct EqPassiveEquivClass { ... ... }; unordered_map<ActiveEquivClass, Edge *, hash<ActiveEquivClass>, EqActiveEquivClass> discovered_active_edges; unordered_map<PassiveEquivClass, Edge *, hash<PassiveEquivClass>, EqPassiveEquivClass> discovered_passive_edges; }; namespace std { template <> class hash<BPCFGParser::ActiveEquivClass> { public: size_t operator()(const BPCFGParser::ActiveEquivClass & aec) const { } }; template <> class hash<BPCFGParser::PassiveEquivClass> { public: size_t operator()(const BPCFGParser::PassiveEquivClass & pec) const { } }; } When I compile this code, I get the following errors: In file included from BPCFGParser.cpp:3, from experiments.cpp:2: BPCFGParser.h:408: error: specialization of ‘std::hash<BPCFGParser::ActiveEquivClass>’ after instantiation BPCFGParser.h:408: error: redefinition of ‘class std::hash<BPCFGParser::ActiveEquivClass>’ /usr/include/c++/4.3/tr1_impl/functional_hash.h:44: error: previous definition of ‘class std::hash<BPCFGParser::ActiveEquivClass>’ BPCFGParser.h:445: error: specialization of ‘std::hash<BPCFGParser::PassiveEquivClass>’ after instantiation BPCFGParser.h:445: error: redefinition of ‘class std::hash<BPCFGParser::PassiveEquivClass>’ /usr/include/c++/4.3/tr1_impl/functional_hash.h:44: error: previous definition of ‘class std::hash<BPCFGParser::PassiveEquivClass>’ Now I have to specialize std::hash for these classes (because standard std::hash definition does not include user defined types). When I move these template specializations before the definition of class BPCFGParser, I get a variety of errors for a variety of different things tried, and somewhere (http://www.parashift.com/c++-faq-lite/misc-technical-issues.html) I read that: Whenever you use a class as a template parameter, the declaration of that class must be complete and not simply forward declared. So I'm stuck. I cannot specialize the templates after BPCFGParser definition, I cannot specialize them before BPCFGParser definition, how may I get this working? Thanks in advance, Onur

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  • Building the WAR with m2eclipse in combination with WTP (handling webResources)

    - by waxwing
    I have a situation where I have a web application that is built using maven (i.e., maven-war-plugin). For each code modification, we have had to manually launch maven and restart the application server. Now, to reduce build cycle overhead, I want to use WTP to publish the webapp. Now, we have resource processing with Maven, and there are some additional Maven tasks defined in our POM when building the webapp. Therefore m2eclipse seems like a natural solution. I have gotten far enough that the Maven builder is running these tasks and filtering resources correctly. However, when I choose "Run on Server", the WAR file does not look like it would if I built it in Maven. I am guessing that this is because WTP actually builds the WAR, and not the m2eclipse builder. So even though we have configured the maven-war-plugin in our POM, those settings are not used. Below is a snippet with our maven-war-plugin configuration. What is configured under "webResources" is not picked up, it appears: <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-war-plugin</artifactId> <version>2.1-alpha-2</version> <configuration> <outputDirectory>${project.build.directory}</outputDirectory> <workDirectory>${project.build.directory}/work</workDirectory> <webappDirectory>${project.build.webappDirectory}</webappDirectory> <cacheFile>${project.build.webappDirectory}/webapp-cache.xml</cacheFile> <filteringDeploymentDescriptors>true</filteringDeploymentDescriptors> <nonFilteredFileExtensions> <nonFilteredFileExtension>pdf</nonFilteredFileExtension> <nonFilteredFileExtension>png</nonFilteredFileExtension> <nonFilteredFileExtension>gif</nonFilteredFileExtension> <nonFilteredFileExtension>jsp</nonFilteredFileExtension> </nonFilteredFileExtensions> <webResources> <!-- Add generated WSDL:s and XSD:s for the web service api. --> <resource> <directory>${project.build.directory}/jaxws/wsgen/wsdl</directory> <targetPath>WEB-INF/wsdl</targetPath> <filtering>false</filtering> <includes> <include>**/*</include> </includes> </resource> </webResources> </configuration> Do I need to reconfigure these resources to be handled elsewhere, or is there a better solution?

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  • Making an XSL stylesheet work with paged XML

    - by fudgey
    First off, here is the situation. I'm using a guild hosting site that allows you to input the URL to an XSL file and another input for the XML. All well and good when all of the XML you want is contained in one file. My problem is this Game Roster XML which is paginated... look near the bottom of the file and you will find a <page_links> section that contains a pager written in HTML with links to /xml?page=2 etc. Since the guild hosting site is set up to only process one XML page I can't get to the other XML pages. So, I can only think of two solutions, but I have no idea how to get started Set up a php page that combines all XML pages into one, then output that file. I can then use this URL in the guild hosting site XSL processor. Somehow combine all the XML files within the XSL stylesheet. I found this question on SO (I don't really understand it, because I don't know what the document($pXml1) is doing), but I don't think it will work since the number of pages will be variable. I think this might be possible by loading the next page until the <members_to> value equals the <members_total>. Any other ideas? I don't know XSL or php that well so any help with code examples would be greatly appreciated. Update: I'm trying method 2 above and here is a snippet of XSLT with which I am having trouble. The first page of the code displays without problems, but the I am having trouble with this xsl:if, or maybe it's the document() statement. Update #2: changed the document to use the string & concat functions, but it's still not working. <xsl:template name="morepages"> <xsl:param name="page">1</xsl:param> <xsl:param name="url"> <xsl:value-of select="concat(SuperGroup/profule_url,'/xml?page=')"/> </xsl:param> <xsl:if test="document(string(concat($url,$page)))/SuperGroup/members_to &lt; document(string(concat($url,$page)))/SuperGroup/members_total"> <xsl:for-each select="document(string(concat($url,$page + 1)))/SuperGroup/members/members_node"> <xsl:call-template name="addrow" /> </xsl:for-each> <!-- Increment page index--> <xsl:call-template name="morepages"> <xsl:with-param name="page" select="$page + 1"/> </xsl:call-template> </xsl:if> </xsl:template>

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  • Help organising controllers logically

    - by kenny99
    Hi guys, I'm working on a site which i'm developing using an MVC structure. My models will represent all of data in the site, but i'm struggling a bit to decide on a good controller structure. The site will allow users to login/register and see personal data on a number of pages, but also still have access to public pages, e.g FAQs, Contact page etc. This is what I have at the moment... A Template Controller which handles main template display. The basic template for the site will remain the same whether or not you are logged in. A main Website Controller which extends the Template Controller and handles basic authentication. If the user is logged in, a User::control_panel() method is called from the constructor and this builds the control panel which will be present throughout the authenticated session. If user is not logged in, then a different view is loaded instead of the control panel, e.g with a login form. All protected/public page related controllers will extend the website controller. The user homepage has a number of widgets I want to display, which I'm doing via a Home Controller which extends the Website Controller. This controller generates these widgets via the following static calls: $this->template->content->featured_pet = Pet::featured(); $this->template->content->popular_names = Pet::most_popular(); $this->template->content->owner_map = User::generate_map(); $this->template->content->news = News::snippet(); I suppose the first thing I'm unsure about is if the above static calls to controllers (e.g Pet and User) are ok to remain static - these static methods will return views which are loaded into the main template. This is the way I've done things in the past but I'm curious to find out if this is a sensible approach. Other protected pages for signed in users will be similar to the Home Controller. Static pages will be handled by a Page Controller which will also extend the Website Controller, so that it will know whether or not the user control panel or login form should be shown on the left hand side of the template. The protected member only pages will not be routed to the Page Controller, this controller will only handle publicly available pages. One problem I have at the moment, is that if both public and protected pages extend the Website Controller, how do I avoid an infinite loop - for example, the idea is that the website controller should handle authentication then redirect to the requested controller (URL), but this will cause an infinite redirect loop, so i need to come up with a better way of dealing with this. All in all, does this setup make any sense?! Grateful for any feedback.

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  • Optimizing multiple dispatch notification algorithm in C#?

    - by Robert Fraser
    Sorry about the title, I couldn't think of a better way to describe the problem. Basically, I'm trying to implement a collision system in a game. I want to be able to register a "collision handler" that handles any collision of two objects (given in either order) that can be cast to particular types. So if Player : Ship : Entity and Laser : Particle : Entity, and handlers for (Ship, Particle) and (Laser, Entity) are registered than for a collision of (Laser, Player), both handlers should be notified, with the arguments in the correct order, and a collision of (Laser, Laser) should notify only the second handler. A code snippet says a thousand words, so here's what I'm doing right now (naieve method): public IObservable<Collision<T1, T2>> onCollisionsOf<T1, T2>() where T1 : Entity where T2 : Entity { Type t1 = typeof(T1); Type t2 = typeof(T2); Subject<Collision<T1, T2>> obs = new Subject<Collision<T1, T2>>(); _onCollisionInternal += delegate(Entity obj1, Entity obj2) { if (t1.IsAssignableFrom(obj1.GetType()) && t2.IsAssignableFrom(obj2.GetType())) obs.OnNext(new Collision<T1, T2>((T1) obj1, (T2) obj2)); else if (t1.IsAssignableFrom(obj2.GetType()) && t2.IsAssignableFrom(obj1.GetType())) obs.OnNext(new Collision<T1, T2>((T1) obj2, (T2) obj1)); }; return obs; } However, this method is quite slow (measurable; I lost ~2 FPS after implementing this), so I'm looking for a way to shave a couple cycles/allocation off this. I thought about (as in, spent an hour implementing then slammed my head against a wall for being such an idiot) a method that put the types in an order based on their hash code, then put them into a dictionary, with each entry being a linked list of handlers for pairs of that type with a boolean indication whether the handler wanted the order of arguments reversed. Unfortunately, this doesn't work for derived types, since if a derived type is passed in, it won't notify a subscriber for the base type. Can anyone think of a way better than checking every type pair (twice) to see if it matches? Thanks, Robert

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  • Firefox logs invalid URL?

    - by thanks for help
    I'm writing an extension for firefox. Using dom.location to keep track of visited search results pages, i'm getting this url http://www.google.com/search?hl=en&source=hp&q=hi&aq=f&aqi=&oq=&fp=642c18fb4411ca2e . If you click it, the google search results for "hi" should come up. You'll know that from the title bar - because the rest of the page won't load. This happens with any google search. Oddly enough, if you cut part of it off, so say, http://www.google.com/search?hl=en&source=hp&q=hi - it works! But Googling "hi" myself does give me a longish URL - http://www.google.com/#hl=en&source=hp&q=hi&aq=f&aqi=&oq=&fp=db658cc5049dc510 . I know for a fact that the first time that URL was visited, the page loaded, I did it myself. Can anyone make reason out of this? I just tried my experiment again, this time saving the original URL in the location bar. It turns out, dom.location.href is giving a different value. How is this happening? Original: http://www.google.com/#hl=en&source=hp&q=hi&aq=f&aqi=&oq=&fp=642c18fb4411ca2e dom.location.href http://www.google.com/search?hl=en&source=hp&q=hi&aq=f&aqi=&oq=&fp=642c18fb4411ca2e window.addEventListener("load", function() { myExtension.init(); }, false); var myExtension = { init: function() { var appcontent = document.getElementById("appcontent"); // browser if(appcontent) appcontent.addEventListener("DOMContentLoaded", myExtension.onPageLoad, true); var messagepane = document.getElementById("messagepane"); // mail if(messagepane) messagepane.addEventListener("load", function () { myExtension.onPageLoad(); }, true); }, onPageLoad: function(aEvent) { var doc = aEvent.originalTarget; // doc is document that triggered "onload" event // do something with the loaded page. // doc.location is a Location object (see below for a link). // You can use it to make your code executed on certain pages only. var url = doc.location.href; if (url.match(/(?:p|q)(?:=)([^%]*)/)) {alert("MATCH" + url);resultsPages.push(url);} else {alert(url); } } This snippet comes directly from Mozilla with the matching and alerts my own. I apologize for not posting the code earlier.

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  • WPF Using commands to slow to update UI controls

    - by toni
    Hi, I bind a command to a button through command property and doing a command binding in the page it is placed. In execute method I create an instance of a class that contains the background worker and I start it (this is a long task). The background worker (bw) class contains a variable isRunning that it is set to true before DoWork method is executed and to false when RunWorkerCompleted is executed. So from the code behind of the page where button is placed, in CanExecute method I set e.canExecute to true if bw is no running (isRunning = false), and e.canExecute to false if isRunning = true. WHen I press the button, it launch bw process for a long time and the button gets disabled. Ok this is correct, but when background worker (bw) finishes, the button doesn't returns to enabled until I press it again. When it is disabled and I press (when bw is finished) it gets enabled. Why the button is not returning automatically to enabled at the end of the bw? my code snippet: <Page x:Class="GParts.Pages.MyPage" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:Microsoft_Windows_Themes="clr-namespace:Microsoft.Windows.Themes; assembly=PresentationFramework.Aero" xmlns:local="clr-namespace:GParts" Loaded="Page_Loaded" Unloaded="Page_Unloaded" Height="Auto"> <Page.CommandBindings> <CommandBinding Command="{x:Static local:Pages.MyPage.rcmd}" Executed="CommandBinding_Executed" CanExecute="CommandBinding_CanExecute"/> </Page.CommandBindings> <...> <Button Command="{x:Static local:Pages.MyPage.rcmd}" /> <...> </Page> The code behind of the page: namespace GParts.Pages { public partial class MyPage : Page { public static RoutedCommand rcmd = new RoutedCommand(); private cBgWorker bw; <...> // ExecutedRoutedEventHandler for the custom button remove all command. private void CommandBinding_Executed(object sender, ExecutedRoutedEventArgs e) { // get an isntance of the background worker class bw = new cBgWorker(); // start the long task bw.StartTask(); } // CanExecuteRoutedEventHandler for the custom button remove all command. private void CommandBinding_CanExecute(object sender, CanExecuteRoutedEventArgs e) { // bw is the instance of background worker class if (bw == null) { e.CanExecute = true; } else { e.CanExecute = !bw.isRunning;// isRunning indicates if bw is //executing now } } <...> } // end class } // end namespace

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  • Regex slow on Windows Server 2008

    - by pjmyburg
    Hi I have a situation where my regular expressions compile extremely slowly on Windows Server 2008. I wrote a small console application to highlight this issue. The app generates its own input and builds up a Regex from words in an XML file. I built a release version of this app and ran it both on my personal laptop (running XP) and the Windows 2008 server. The regular expression took 0.21 seconds to compile on my laptop, but 23 seconds to compile on the server. Any ideas what could be causing this? The problem is only on first use of the Regex (when it is first compiled - thereafter it is fine) I have also found another problem - when using \s+ in the regular expression on the same Windows 2008 server, the memory balloons (uses 4GB+) and the compilation of the Regex never finishes. Is there a known issue with Regex and 64 bit .net? Is there a fix/patch available for this? I cannot really find any info on the net, but I have found a few articles about this same issues in Framework 2.0 - surely this has been fixed by now? More info: The server is running the 64 bit version of the .net framework (3.5 SP1) and on my laptop I have Visual Studio 2008 and the 3.5 framework installed. The regular expression is of the following pattern: ^word$|^word$|^word$ and is constructed with the following flags: RegexOptions.IgnoreCase | RegexOptions.Compiled Edit: Here is a code snippet: StringBuilder regexString = new StringBuilder(); if (!String.IsNullOrEmpty(fileLocation)) { XmlTextReader textReader = new XmlTextReader(fileLocation); textReader.Read(); while (textReader.Read()) { textReader.MoveToElement(); if (textReader.Name == "word") { regexString.Append("^" + textReader.GetAttribute(0) + "$|"); } } ProfanityFilter = new Regex(regexString.ToString(0, regexString.Length - 1), RegexOptions.IgnoreCase | RegexOptions.Compiled); } DateTime time = DateTime.Now; Console.WriteLine("\nIsProfane:\n" + ProfanityFilter.IsMatch("test")); Console.WriteLine("\nTime: " + (DateTime.Now - time).TotalSeconds); Console.ReadKey(); This results in a time of 0.21 seconds on my laptop and 23 seconds on the 2008 server. The XML file consists of 168 words in the following format: <word text="test" />

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  • Why does Android Account & Sync reboot when trying to find my settings activity?

    - by mobibob
    I have an activity that I can declare as Launcher category and it launches just fine from the home screen. However, when I try to hook-up the same activity into my SyncAdapter's settings activity and open it from the Accounts & Sync page - MySyncAdapter - (touch account listing) it aborts with a system fatal error (reboots phone). Meanwhile, my SyncAdapter is working other respects. Here is the log at point of impact: 01-13 12:31:00.976 5024 5038 I ActivityManager: Starting activity: Intent { act=android.provider.Settings.ACTION_SYNC_SETTINGS flg=0x10000000 cmp=com.myapp.android.syncadapter.ui/SyncAdapterSettingsActivity.class (has extras) } 01-13 12:31:00.985 5024 5038 E AndroidRuntime: *** FATAL EXCEPTION IN SYSTEM PROCESS: android.server.ServerThread 01-13 12:31:00.985 5024 5038 E AndroidRuntime: android.content.ActivityNotFoundException: Unable to find explicit activity class {com.myapp.android.syncadapter.ui/SyncAdapterSettingsActivity.class}; have you declared this activity in your AndroidManifest.xml? 01-13 12:31:00.985 5024 5038 E AndroidRuntime: at android.app.Instrumentation.checkStartActivityResult(Instrumentation.java:1404) 01-13 12:31:00.985 5024 5038 E AndroidRuntime: at android.app.Instrumentation.execStartActivity(Instrumentation.java:1378) 01-13 12:31:00.985 5024 5038 E AndroidRuntime: at android.app.ContextImpl.startActivity(ContextImpl.java:622) 01-13 12:31:00.985 5024 5038 E AndroidRuntime: at android.preference.Preference.performClick(Preference.java:828) 01-13 12:31:00.985 5024 5038 E AndroidRuntime: at android.preference.PreferenceScreen.onItemClick(PreferenceScreen.java:190) 01-13 12:31:00.985 5024 5038 E AndroidRuntime: at android.widget.AdapterView.performItemClick(AdapterView.java:284) 01-13 12:31:00.985 5024 5038 E AndroidRuntime: at android.widget.ListView.performItemClick(ListView.java:3382) 01-13 12:31:00.985 5024 5038 E AndroidRuntime: at android.widget.AbsListView$PerformClick.run(AbsListView.java:1696) 01-13 12:31:00.985 5024 5038 E AndroidRuntime: at android.os.Handler.handleCallback(Handler.java:587) 01-13 12:31:00.985 5024 5038 E AndroidRuntime: at android.os.Handler.dispatchMessage(Handler.java:92) 01-13 12:31:00.985 5024 5038 E AndroidRuntime: at android.os.Looper.loop(Looper.java:123) 01-13 12:31:00.985 5024 5038 E AndroidRuntime: at com.android.server.ServerThread.run(SystemServer.java:517) 01-13 12:31:00.985 5024 5038 I Process : Sending signal. PID: 5024 SIG: 9 01-13 12:31:01.005 5019 5019 I Zygote : Exit zygote because system server (5024) has terminated 01-13 12:31:01.015 1211 1211 E installd: eof Here is a snippet from my manifest file: <activity android:name="com.myapp.android.syncadapter.ui.SyncAdapterSettingsActivity" android:label="@string/title_settings" android:windowSoftInputMode="stateAlwaysHidden|adjustPan"> <intent-filter> <action android:name="android.intent.action.VIEW" /> <action android:name="android.intent.action.MAIN" /> <action android:name="android.provider.Settings.ACTION_SYNC_SETTINGS"/> <category android:name="android.intent.category.DEFAULT" /> <category android:name="android.intent.category.LAUNCHER" /> </intent-filter> </activity>

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  • Handling Exceptions for ThreadPoolExecutor

    - by HonorGod
    I have the following code snippet that basically scans through the list of task that needs to be executed and each task is then given to the executor for execution. The JobExecutor intern creates another executor (for doing db stuff...reading and writing data to queue) and completes the task. JobExecutor returns a Future for the tasks submitted. When one of the task fails, I want to gracefully interrupt all the threads and shutdown the executor by catching all the exceptions. What changes do I need to do? public class DataMovingClass { private static final AtomicInteger uniqueId = new AtomicInteger(0); private static final ThreadLocal<Integer> uniqueNumber = new IDGenerator(); ThreadPoolExecutor threadPoolExecutor = null ; private List<Source> sources = new ArrayList<Source>(); private static class IDGenerator extends ThreadLocal<Integer> { @Override public Integer get() { return uniqueId.incrementAndGet(); } } public void init(){ // load sources list } public boolean execute() { boolean succcess = true ; threadPoolExecutor = new ThreadPoolExecutor(10,10, 10, TimeUnit.SECONDS, new ArrayBlockingQueue<Runnable>(1024), new ThreadFactory() { public Thread newThread(Runnable r) { Thread t = new Thread(r); t.setName("DataMigration-" + uniqueNumber.get()); return t; }// End method }, new ThreadPoolExecutor.CallerRunsPolicy()); List<Future<Boolean>> result = new ArrayList<Future<Boolean>>(); for (Source source : sources) { result.add(threadPoolExecutor.submit(new JobExecutor(source))); } for (Future<Boolean> jobDone : result) { try { if (!jobDone.get(100000, TimeUnit.SECONDS) && success) { // in case of successful DbWriterClass, we don't need to change // it. success = false; } } catch (Exception ex) { // handle exceptions } } } public class JobExecutor implements Callable<Boolean> { private ThreadPoolExecutor threadPoolExecutor ; Source jobSource ; public SourceJobExecutor(Source source) { this.jobSource = source; threadPoolExecutor = new ThreadPoolExecutor(10,10,10, TimeUnit.SECONDS, new ArrayBlockingQueue<Runnable>(1024), new ThreadFactory() { public Thread newThread(Runnable r) { Thread t = new Thread(r); t.setName("Job Executor-" + uniqueNumber.get()); return t; }// End method }, new ThreadPoolExecutor.CallerRunsPolicy()); } public Boolean call() throws Exception { boolean status = true ; System.out.println("Starting Job = " + jobSource.getName()); try { // do the specified task ; }catch (InterruptedException intrEx) { logger.warn("InterruptedException", intrEx); status = false ; } catch(Exception e) { logger.fatal("Exception occurred while executing task "+jobSource.getName(),e); status = false ; } System.out.println("Ending Job = " + jobSource.getName()); return status ; } } }

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  • stdio's remove() not always deleting on time.

    - by Kyte
    For a particular piece of homework, I'm implementing a basic data storage system using sequential files under standard C, which cannot load more than 1 record at a time. So, the basic part is creating a new file where the results of whatever we do with the original records are stored. The previous file's renamed, and a new one under the working name is created. The code's compiled with MinGW 5.1.6 on Windows 7. Problem is, this particular version of the code (I've got nearly-identical versions of this floating around my functions) doesn't always remove the old file, so the rename fails and hence the stored data gets wiped by the fopen(). FILE *archivo, *antiguo; remove("IndiceNecesidades.old"); // This randomly fails to work in time. rename("IndiceNecesidades.dat", "IndiceNecesidades.old"); // So rename() fails. antiguo = fopen("IndiceNecesidades.old", "rb"); // But apparently it still gets deleted, since this turns out null (and I never find the .old in my working folder after the program's done). archivo = fopen("IndiceNecesidades.dat", "wb"); // And here the data gets wiped. Basically, anytime the .old previously exists, there's a chance it's not removed in time for the rename() to take effect successfully. No possible name conflicts both internally and externally. The weird thing's that it's only with this particular file. Identical snippets except with the name changed to Necesidades.dat (which happen in 3 different functions) work perfectly fine. // I'm yet to see this snippet fail. FILE *antiguo, *archivo; remove("Necesidades.old"); rename("Necesidades.dat", "Necesidades.old"); antiguo = fopen("Necesidades.old", "rb"); archivo = fopen("Necesidades.dat", "wb"); Any ideas on why would this happen, and/or how can I ensure the remove() command has taken effect by the time rename() is executed? (I thought of just using a while loop to force call remove() again so long as fopen() returns a non-null pointer, but that sounds like begging for a crash due to overflowing the OS with delete requests or something.)

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