[openorb-users] Problem while sending LARGE STRINGS

[Dahiya, K. (GE H. consultant) <Kir...@ge...>]

Hi,
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I have an issue regarding passing of very large strings across TAO and
openORB1.4.0.
i tried it as:
server  =3D TAO
client  =3D openORB1.4.0=20
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ACE version is 5.2a_p9-OCI (OCI's Distribution of TAO)
TAO version 1.2a_p9-OCI (OCI's Distribution of TAO
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.idl file is:
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test.idl:
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interface test
{
        void fun(inout string x);
};

CLIENT CODE:
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client.java:
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import java.io.*;
import org.omg.CORBA.*;
import java.lang.*;
import java.util.*;
import java.text.*;
public class client
{
    public static void main(String args[])
    {
        try
        {
                org.omg.CORBA.ORB orb =3D org.omg.CORBA.ORB.init (args,
null);
                FileReader file =3D new
FileReader("/homes/lf502787/string_1/generated/testServer.ior");
                BufferedReader in =3Dnew BufferedReader(file);
                String obj =3D in.readLine();
                //obj=3D(String)file.read ();
                org.omg.CORBA.Object strobj =3D orb.string_to_object(obj
);
                test testobj =3D testHelper.narrow( strobj );
                java.lang.String in_str ;
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                char[] temp =3D new char[150000];
                for(int i=3D0;i<150000;i++)
                {
                        temp[i] =3D 'a';
                }
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                in_str =3D new String(temp);
                org.omg.CORBA.StringHolder inout_str =3D new
org.omg.CORBA.StringHolder();
//              java.lang.String  ret_str;
                inout_str.value =3D in_str;
                System.out.println("LENGTH OF INOUT STRING AT
CLIENT(before sending) "+ in_str.length());
                testobj.fun(inout_str);
                String temp_str =3D new String();
                temp_str =3D inout_str.value ;
                System.out.println("LENGTH OF INOUT STRING RETURNED FROM
SERVER(after calling) "+ temp_str.length());
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//              System.out.println("LENGTH OF STRING RETURNED FROM
SERVER "+ ret_str.length());
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        }
        catch(Exception e)
        {
                e.printStackTrace();
        }
        }
}
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SERVER CODE:
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server.cpp
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#include <iostream>
#include <fstream>
#include "testS.h"
//#include "testS.i"
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using namespace std;
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class test_Impl : virtual public POA_test
{
        public:
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        void fun(char* & s_inout) throw(CORBA::SystemException)
        {
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                cout<<"length of string received as inout parameter from
server(before modification) "<< strlen(s_inout)<<"\n";
                char temp[2000005];
                for(int i =3D 0;i<2000005;i++)
                {
                        temp[i] =3D 'a';
                }
                s_inout =3D CORBA::string_dup(temp);
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                cout<<"length of out parameter at server
"<<strlen(s_inout)<<"\n";
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        }
};
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int main(int argc, char *argv[])
{
        CORBA::ORB_var orb =3D CORBA::ORB_init(argc,argv);
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        CORBA::Object_var poaobj =3D
orb->resolve_initial_references("RootPOA");
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        PortableServer::POA_var poa =3D
PortableServer::POA::_narrow(poaobj);
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        PortableServer::POAManager_var mgr =3D poa->the_POAManager();
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        test_Impl *test_servant =3D new test_Impl();
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        CORBA::Object_var objv =3D test_servant->_this();
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        CORBA::String_var ior =3D orb->object_to_string(objv);
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        ofstream of;
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        of.open("/homes/lf502787/string_1/generated/testServer.ior");
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        of<<ior;

        of.close();
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        mgr->activate();
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        orb->run();
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        return 0;
}


OPERATING SYSTEM:  Linux
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PROBLEM DESCRIPTION:
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Compilation problem: NO
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Linking Problem : NO
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While Execution:
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1. When the client is sending string of length 150000 to the server,then
it is giving an error as:
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org.omg.CORBA.TRANSIENT:   vmcid: 0x0  minor code: 2  completed: No
        at
org.openorb.orb.core.Delegate$RequestState.findNextBinding(Delegate.java
:2258)
        at
org.openorb.orb.core.Delegate$RequestState.failoverFatal(Delegate.java:2
337)
        at
org.openorb.orb.core.Delegate$RequestState.receiveSystemException(Delega
te.java:2395)
        at
org.openorb.orb.core.Delegate$RequestState.access$000(Delegate.java:1583
)
        at org.openorb.orb.core.Delegate.invoke(Delegate.java:1100)
        at
org.omg.CORBA.portable.ObjectImpl._invoke(ObjectImpl.java:457)
        at _testStub.fun(_testStub.java:35)
        at client.main(client.java:32)
Caused by: org.omg.CORBA.COMM_FAILURE: IOException while reading from
input stream (java.net.SocketException: Connection reset)  vmcid:
0x444f7000  minor code: 268  completed: No
        at
org.openorb.orb.iiop.IIOPTransport.readMagic(IIOPTransport.java:572)
        at
org.openorb.orb.iiop.IIOPTransport.recvMessage(IIOPTransport.java:427)
        at
org.openorb.orb.iiop.SocketQueue.process_or_enqueue(SocketQueue.java:265
)
        at
org.openorb.orb.iiop.SocketQueue.receive(SocketQueue.java:211)
        at
org.openorb.orb.iiop.IIOPClientChannel.run_recv(IIOPClientChannel.java:1
337)
        at
org.openorb.orb.net.ClientManagerImpl$ChannelRecvRunnable.run(ClientMana
gerImpl.java:264)
        at java.lang.Thread.run(Thread.java:595)
Caused by: java.net.SocketException: Connection reset
        at java.net.SocketInputStream.read(SocketInputStream.java:168)
        at
java.io.BufferedInputStream.fill(BufferedInputStream.java:218)
        at
java.io.BufferedInputStream.read1(BufferedInputStream.java:256)
        at
java.io.BufferedInputStream.read(BufferedInputStream.java:313)
        at
org.openorb.orb.iiop.IIOPTransport.readMagic(IIOPTransport.java:491)
        ... 6 more

2. When client is sending string of length 200000(or more) to the
server,then the system is getting hanged.
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SELF-EFFORTS:
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I reffered to the already posted maills on openORB Community.
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Reffered mail is present at:
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http://sourceforge.net/mailarchive/forum.php?thread_name=3D001401c5beb1%2=
4
b5ef60e0%24140000c0%40W158&forum_name=3Dopenorb-users
<BLOCKED::BLOCKED::http://sourceforge.net/mailarchive/forum.php?thread_n
ame=3D001401c5beb1$b5ef60e0$140000c0@W158&forum_name=3Dopenorb-users>=20
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COMMANDS USED: =20
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FOR SERVER:
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COMPILING THE .idl FILE:
/vobs/atlas-tools/tao12a/ACE_wrappers/bin/debug/linux/gcc332/tao_idl  -g
/vobs/atlas-tools/tao12a/ACE_wrappers/bin/debug/linux/gcc332/gperf
test.idl

COMPILING THE .cpp FILES:  gcc -c
-I/vobs/atlas-tools/tao12a/ACE_wrappers/TAO
-I/vobs/atlas-tools/tao12a/ACE_wrappers
-L/vobs/atlas-tools/tao12a/ACE_wrappers/bin/debug/linux/gcc332  -lTAO
-lACE -lTAO_PortableServer server.cpp

LINKING FILES:  gcc  -I/vobs/atlas-tools/tao12a/ACE_wrappers/TAO
-I/vobs/atlas-tools/tao12a/ACE_wrappers
-L/vobs/atlas-tools/tao12a/ACE_wrappers/bin/debug/linux/gcc332 -lTAO
-lACE -lTAO_PortableServer -o server server.o testS.o testC.o
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EXECUTION OF SERVER:  ./server &
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FOR CLIENT:
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COMPILATION=20
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/usr/java/jdk1.5.0_06/bin/javac -classpath
/homes/lf502787/OpenORB_generated/openorb_orb-1.4.0.jar:/homes/lf502787/
OpenORB_generated/openorb_orb_tools-1.4.0.jar:/homes/lf502787/OpenORB_ge
nerated/openorb_orb_examples-1.4.0.jar:/homes/lf502787/OpenORB_generated
/openorb_orb_test-1.4.0.jar:/homes/lf502787/OpenORB_generated/xercesImpl
.jar:/homes/lf502787/OpenORB_generated/logkit.jar:/homes/lf502787/OpenOR
B_generated/junit.jar:/homes/lf502787/OpenORB_generated/excalibur-config
uration.jar:/homes/lf502787/OpenORB_generated/avalon-framework.jar:/home
s/lf502787/OpenORB_generated/tools-1.4.0.jar:/homes/lf502787/OpenORB_gen
erated/openorb_orb-classes-1.4.0.jar:/homes/lf502787/OpenORB_generated/o
penorb_orb-config-1.4.0.jar:/homes/lf502787/OpenORB_generated/openorb_or
b_omg-1.4.0.jar:/homes/lf502787/OpenORB_generated/launcher.jar:/homes/lf
502787/OpenORB_generated/build.jar:/homes/lf502787/OpenORB_generated/ope
norb_native.jar:/homes/lf502787/OpenORB_generated/tools_test-1.4.0.jar:/
homes/lf502787/OpenORB_generated/commons-cli.jar:/homes/lf502787/OpenORB
_generated/hsqldb.jar:/homes/lf502787/OpenORB_generated/xml-apis.jar:/ho
mes/lf502787/OpenORB_generated/ant.jar:/homes/lf502787/OpenORB_generated
/ant-launcher.jar:/homes/lf502787/OpenORB_generated/batik.jar:/homes/lf5
02787/OpenORB_generated/checkstyle-all.jar:/homes/lf502787/OpenORB_gener
ated/fop.jar:/homes/lf502787/OpenORB_generated/jfor.jar:/homes/lf502787/
OpenORB_generated/jimi.jar:/homes/lf502787/OpenORB_generated/xalan.jar:.
client.java
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EXECUTION=20
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/usr/java/jdk1.5.0_06/bin/java -classpath
/homes/lf502787/OpenORB_generated/openorb_orb-1.4.0.jar:/homes/lf502787/
OpenORB_generated/openorb_orb_tools-1.4.0.jar:/homes/lf502787/OpenORB_ge
nerated/openorb_orb_examples-1.4.0.jar:/homes/lf502787/OpenORB_generated
/openorb_orb_test-1.4.0.jar:/homes/lf502787/OpenORB_generated/xercesImpl
.jar:/homes/lf502787/OpenORB_generated/logkit.jar:/homes/lf502787/OpenOR
B_generated/junit.jar:/homes/lf502787/OpenORB_generated/excalibur-config
uration.jar:/homes/lf502787/OpenORB_generated/avalon-framework.jar:/home
s/lf502787/OpenORB_generated/tools-1.4.0.jar:/homes/lf502787/OpenORB_gen
erated/openorb_orb-classes-1.4.0.jar:/homes/lf502787/OpenORB_generated/o
penorb_orb-config-1.4.0.jar:/homes/lf502787/OpenORB_generated/openorb_or
b_omg-1.4.0.jar:/homes/lf502787/OpenORB_generated/launcher.jar:/homes/lf
502787/OpenORB_generated/build.jar:/homes/lf502787/OpenORB_generated/ope
norb_native.jar:/homes/lf502787/OpenORB_generated/tools_test-1.4.0.jar:/
homes/lf502787/OpenORB_generated/commons-cli.jar:/homes/lf502787/OpenORB
_generated/hsqldb.jar:/homes/lf502787/OpenORB_generated/xml-apis.jar:/ho
mes/lf502787/OpenORB_generated/ant.jar:/homes/lf502787/OpenORB_generated
/ant-launcher.jar:/homes/lf502787/OpenORB_generated/batik.jar:/homes/lf5
02787/OpenORB_generated/checkstyle-all.jar:/homes/lf502787/OpenORB_gener
ated/fop.jar:/homes/lf502787/OpenORB_generated/jfor.jar:/homes/lf502787/
OpenORB_generated/jimi.jar:/homes/lf502787/OpenORB_generated/xalan.jar:.
-Dorg.omg.CORBA.ORBClass=3Dorg.openorb.orb.core.ORB
-Dorg.omg.CORBA.ORBSingletonClass=3Dorg.openorb.CORBA.ORBSingleton  =
client

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Concerned replies are sincerely awaited & are requested to be sent at
this email id only.
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Regards
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Ms. Kiran Dahiya
GE Healthcare
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