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Code Block
languagecpp
titleidlHelloComp/idl/HelloComponent.idl
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#ifndef _HELLOCOMPONENT_IDL_
#define _HELLOCOMPONENT_IDL_

#pragma prefix "acsws"

#include <acscomponent.idl>

module workshop {
    interface HelloComponent : ACS::ACSComponent {
        voidstring printHello();
    };
};

#endif

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Code Block
languagepy
titlepyHelloComponent/src/workshop/HelloComponentImpl.py
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#Client stubs and definitions, such as structs, enums, etc.
import workshop
#Skeleton infrastructure for server implementation
import workshop__POA
 
#Base component implementation
from Acspy.Servants.ACSComponent import ACSComponent
#Services provided by the container to the component
from Acspy.Servants.ContainerServices import ContainerServices
#Basic component lifecycle (initialize, execute, cleanUp and aboutToAbort methods)
from Acspy.Servants.ComponentLifecycle import ComponentLifecycle
 
class HelloComponentImpl(workshop__POA.HelloComponent, ACSComponent, ContainerServices, ComponentLifecycle):
    def __init__(self):
        ACSComponent.__init__(self)
        ContainerServices.__init__(self)
        self._logger = self.getLogger()
    def printHello(self):
            print("Just printing 'Hello World!'")
        return "Hello World!"

Java

Code Block
> getTemplateForDirectory MODROOT_WS jHelloComp
> cd jHelloComp/src
> mkdir -p acsws/workshop/HelloComponentImpl
> touch acsws/workshop/HelloComponentImpl/HelloComponentImpl.java
> cp ../../idlHelloComp/src/acsws/workshop/HelloComponentImpl/HelloComponentComponentHelper.java.tpl acsws/workshop/HelloComponentImpl/HelloComponentComponentHelper.java

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Code Block
languagejava
titlejHelloComponent/src/acsws/workshop/HelloComponentImpl/HelloComponentImpl.java
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//Suggested: import alma.<Module>.<Interface>Impl; //But anything, really
package acsws.workshop.HelloComponentImpl;
 
//Base component implementation, including container services and component lifecycle infrastructure
import alma.acs.component.ComponentImplBase;
 
//Skeleton interface for server implementation
import acsws.workshop.HelloComponentOperations;


//ClassName usually is <Interface>Impl, but can be anything
public class HelloComponentImpl extends ComponentImplBase implements HelloComponentOperations {
    public HelloComponentImpl() {
    }
    public voidString printHello() {
        System.out.println("Just printing 'Hello World!'");
        return new String("Hello World!")
    }
}

C++

We create the needed directories:

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Code Block
languagecpp
titlecppHelloComponent/include/HelloComponentImpl.h
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#ifndef _HELLO_COMPONENT_IMPL_H
#define _HELLO_COMPONENT_IMPL_H

#ifndef __cplusplus
#error This is a C++ include file and cannot be used from plain C
#endif

//Base component implementation, including container services and component lifecycle infrastructure
#include <acscomponentImpl.h>

//Skeleton interface for server implementation
#include <HelloComponentS.h>

//Error definitions for catching and raising exceptions
class HelloComponentImpl : public virtual acscomponent::ACSComponentImpl, public virtual POA_workshop::HelloComponent {
  public:
    HelloComponentImpl(const ACE_CString& name, maci::ContainerServices * containerServices);
    virtual ~HelloComponentImpl();
    voidchar* printHello();
};

#endif
Code Block
languagecpp
titlecppHelloComponent/src/HelloComponentImpl.cpp
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#include <HelloComponentImpl.h>

HelloComponentImpl::HelloComponentImpl(const ACE_CString& name, maci::ContainerServices * containerServices) : ACSComponentImpl(name, containerServices) {
}

HelloComponentImpl::~HelloComponentImpl() {
}

voidchar* HelloComponentImpl::printHello() {
    std::cout << "Just printing 'Hello World!'" << std::endl;
    return "Hello World!";
}

/* --------------- [ MACI DLL support functions ] -----------------*/
#include <maciACSComponentDefines.h>
MACI_DLL_SUPPORT_FUNCTIONS(HelloComponentImpl)
/* ----------------------------------------------------------------*/

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Code Block
languagepy
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from Acspy.Clients.SimpleClient import PySimpleClient

client = PySimpleClient()

hc_py = cclient.getComponent("PY_HELLO_COMP")
hc_java = cclient.getComponent("JAVA_HELLO_COMP")
hc_cpp = cclient.getComponent("CPP_HELLO_COMP")

print(hc_py.printHello())
print(hc_java.printHello())
print(hc_cpp.printHello())

Output

The output is seen on each container:

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Code Block
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2020-07-28T21:19:53.080 [Container-ActivationMethod - maci::ActivationMethod::call] Calling maci::CBComponentInfo::done with descOut.id_tag = 4.
2020-07-28T21:19:53.082 [Container-ActivationMethod - maci::ActivationMethod::call] Call to maci::CBComponentInfo::done with descOut.id_tag = 4 completed.
Just saying 'Hello World!'
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PySimpleClient

Code Block
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Hello World!
Hello World!
Hello World!
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