collocated.cpp

来自「ICE-3.2 一个开源的中间件」· C++ 代码 · 共 111 行

// **********************************************************************
//
// Copyright (c) 2003-2007 ZeroC, Inc. All rights reserved.
//
// This copy of Ice is licensed to you under the terms described in the
// ICE_LICENSE file included in this distribution.
//
// **********************************************************************

#include <Ice/Application.h>
#include <BookFactory.h>
#include <Parser.h>
#include <Freeze/Freeze.h>

using namespace std;

class LibraryCollocated : public Ice::Application
{
public:
    
    LibraryCollocated(const string& envName) :
        _envName(envName)
    {
    }

    virtual int run(int argc, char* argv[]);
    virtual void interruptCallback(int);

private:

    const string _envName;
};

int
main(int argc, char* argv[])
{
    LibraryCollocated app("db");
    return app.main(argc, argv, "config.collocated");
}

int
LibraryCollocated::run(int argc, char* argv[])
{
    //
    // Since this is an interactive demo we want the custom interrupt
    // callback to be called when the process is interrupted.
    //
    callbackOnInterrupt();

    Ice::PropertiesPtr properties = communicator()->getProperties();
    
    //
    // Create an object adapter
    //
    Ice::ObjectAdapterPtr adapter = communicator()->createObjectAdapter("Library");

    //
    // Create an evictor for books.
    //
    Freeze::EvictorPtr evictor = Freeze::createEvictor(adapter, _envName, "books");
    Ice::Int evictorSize = properties->getPropertyAsInt("EvictorSize");
    if(evictorSize > 0)
    {
        evictor->setSize(evictorSize);
    }
    
    //
    // Use the evictor as servant Locator.
    //
    adapter->addServantLocator(evictor, "book");
    
    //
    // Create the library, and add it to the Object Adapter.
    //
    LibraryIPtr library = new LibraryI(communicator(), _envName, "authors", evictor);
    adapter->add(library, communicator()->stringToIdentity("library"));
    
    //
    // Create and install a factory for books.
    //
    Ice::ObjectFactoryPtr bookFactory = new BookFactory(library);
    communicator()->addObjectFactory(bookFactory, "::Demo::Book");

    //
    // Everything ok, let's go.
    //
    int runParser(int, char*[], const Ice::CommunicatorPtr&);
    int status = runParser(argc, argv, communicator());
    adapter->destroy();

    return status;
}

void
LibraryCollocated::interruptCallback(int)
{
    try
    {
        communicator()->destroy();
    }
    catch(const IceUtil::Exception& ex)
    {
        cerr << appName() << ": " << ex << endl;
    }
    catch(...)
    {
        cerr << appName() << ": unknown exception" << endl;
    }
    exit(EXIT_SUCCESS);
}