slice2java task source code

Hello Zeroc

is slice2javaTask code open

Yes, look in the ant subdirectory of the IceJ archive.

- Mark

slice2javaTask

I tried to build build.xml file. I got the below error

taskdef class Slice2JavaTask cannot be found

You need to ensure that ant-jar.jar is in your CLASSPATH.

slice2javaTask

Yes, the ant-1.6.5.jar is in the path. I'm using the MyEclipse IDE, It has got default ant. Still it is saying the taskdef class Slice2JavaTask cannot be found.

You need to ensure that ant-ice.jar (not ant-jar.jar, or ant-1.6.5.jar) from the Ice distribution, which contains the implementation for the slice2java task, is your in CLASSPATH.

build.xml

When I was trying to build build.xml. I got this error

Exception in thread "main" java.lang.NoClassDefFoundError: org/apache/tools/ant/Main


Thanks

Hi Lakshmi

From the error message seems that your ant distribution is not working fine.

What is the output of ant -version in your system

if ant is property installed you should see

Apache Ant version 1.7.0 compiled on December 13 2006

Note you need ant 1.7.0 or later for build Ice Java, quoted from Ice-3.3.0/java/INSTALL

The Ice for Java build system requires Apache Ant 1.7.0 or later. Ant
is available at the link below:

Apache Ant - Welcome

Regards,
José

build.xml

I'm using Myelipse ide . So ant comes automaticlaly with that right?

Hi lakshmiK,

I´m not use Eclipse Ide and can help you with that, by the way seems that the problem is the ant eclipse integration, you should check Eclipse help for ant builds.

Regards,
José

builtinsequences

How would I set the path for the Builtinsequences.ice in the build.xml file?

Could you please let me know the examples ?

thanks

Hi LakshmiK

You need to use appropiate includepath in your Slice2Java task

    <target name="generate">
        <!-- Create the output directory for generated code -->
        <mkdir dir="generated"/>
        <slice2java outputdir="generated">
            <fileset dir="slice" includes="*.ice"/>
            [B]<includepath>
                <pathelement path="c:\Ice-3.3.0-VC90\slice"/>
            </includepath>[/B]
        </slice2java>
    </target>

Then in your slice definitions you only need to wrote

#include <Ice/BuiltinSequences.ice>

Regards,
José

Sequences

I'm Learning ICe.
Is sequence<FileSystemPr::PrStruct>optPr; same as
sequence<PrStruct>optPr; If not, what is the differnce between two?

I need some examples simliar to this.

thanks.

They may or may not be the same, depending on the module in which they are being referenced. One is using a fully qualified name, the other is not.

Sequences

sequence<FileSystemPr::PrStruct>optPr

what is :: mean ?

Hi lakshmiK

:: is used to separate module names in slice definitions;

module A
{
   Interface B
   {
         //...
   };
};

To refer to interface B in ohter module than A you should use

Module C
{
     interface Foo
     {
         ::A::B* getB();
     };
};

But inside module A you can simple use B

module A
{
     interface Foo
     {
         B* getB();
     };
};

in both case getB returns a proxy to an interface of type B defined inside module A.

The concept is similar to what namespaces are in c++ or packages in java.

I first edited your post, i moved the reply to a new post

Regards,
Jose

slice2javaTask

Thanks for your reply. In the below code. the interface Reser has a method getdata right? Is it going to return the PStruct or void?

Actually I want to call this method in my java file.
First.ice

module printer
{
enum enumtype{type1,dataType,DetailsType};

struct PrStruct
{
enumtype memberType;
string errorMsg;
PRData data;
};

}





second.ice


#include <First.ice>

module ReserInfo
{

enum SearchType {Exact,Contain};
sequence<First::PnrStruct> OptPr;
struct Info
{
string RecLoc;

string CreationDateTime;
};
sequence<Info> MList;

exception PrException
{
string errMessage;
};

exception PrNotFound extends PrException
{
};

exception OldPrException extends PrException
{
};


Interface Reser
{


["nonmutating"] idempotent First::PStruct getdata(string RecLoc) throws PrException;
OptPr setPr(Ice::ByteSeq Pr) throws PrException;

};

};


#endif

thanks

It returns First::PStruct, not void. If it was to return a void it would be void getdata.

I strongly suggest you read the slice mapping chapter of the Ice manual. It answers all of these questions, and more. Without studying this chapter, along with the java mapping chapter then you'll never really understand how things hang together.

Connection error

I'm trying to connect to the Iceserver. I got the below errors:

Ice.ConnectionRefusedException
error = 0
at IceInternal.Network.doConnect(Network.java:284)
at IceInternal.TcpConnector.connect(TcpConnector.java:25)
at IceInternal.OutgoingConnectionFactory.create(OutgoingConnectionFactory.java:308)
at IceInternal.RoutableReference.createConnection(RoutableReference.java:379)
at IceInternal.DirectReference.getConnection(DirectReference.java:192)
at Ice._ObjectDelM.setup(_ObjectDelM.java:258)
at Ice.ObjectPrxHelperBase.__getDelegate(ObjectPrxHelperBase.java:905)
at Ice.ObjectPrxHelperBase.ice_isA(ObjectPrxHelperBase.java:73)
at Ice.ObjectPrxHelperBase.ice_isA(ObjectPrxHelperBase.java:61)
at Resfo.ReseHelper.checkedCast(ReseHelper.java:298)
Caused by: java.net.ConnectException: Connection refused: no further information
at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
at sun.nio.ch.SocketChannelImpl.finishConnect(Unknown Source)
at IceInternal.Network.doConnect(Network.java:259

Please see this FAQ.

slice2javaTask

Hi,

What could be the cause for the below error:?


Exception in thread "main" Ice.ObjectNotExistException
id.name = "Ice"
id.category = ""
facet = ""
operation = "ice_isA"
at IceInternal.Outgoing.invoke(Outgoing.java:148)
at Ice._ObjectDelM.ice_isA(_ObjectDelM.java:31)
at Ice.ObjectPrxHelperBase.ice_isA(ObjectPrxHelperBase.java:74)
at Ice.ObjectPrxHelperBase.ice_isA(ObjectPrxHelperBase.java:61)
at Res.ResPrxHelper.checkedCast(ResPrxHelper.java:298)

Please read the manual! This forum cannot serve as a substitute for reading our documentation.

basic Slice2JavaTask ant question

What's the proper way to add an arg, such as --tie, to the slice compiler using the build.xml and config/common.xml structures like in the demos?

Hi,

If you're using our slice2java ant task, you would pass options to the task like this:

<slice2java outputdir="${generated.dir}" tie="on" stream="on">
    ...
</slice2java>

Hope that helps,
Mark