javacommons/fileutils/src/driveobserverclient.cpp
author Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
Tue, 27 Apr 2010 16:30:29 +0300
branchRCL_3
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permissions -rw-r--r--
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/*
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* Copyright (c) 2008 Nokia Corporation and/or its subsidiary(-ies).
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* All rights reserved.
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* This component and the accompanying materials are made available
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* under the terms of "Eclipse Public License v1.0"
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* which accompanies this distribution, and is available
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* at the URL "http://www.eclipse.org/legal/epl-v10.html".
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*
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* Initial Contributors:
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* Nokia Corporation - initial contribution.
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*
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* Contributors:
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*
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* Description:  DriveObserverImpl - platform S60 specific
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*
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*/
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#include "logger.h"
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#include "comms.h"
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#include "commsmessage.h"
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#include "commsclientendpoint.h"
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#include "driveobserverclient.h"
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#include "driveobservermessages.h"
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using java::comms::CommsClientEndpoint;
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namespace java
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{
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namespace fileutils
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{
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DriveObserverClient::DriveObserverClient()
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        :mEventsSubscribed(false), mComms(0), mCommsOwner(false)
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{
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    JELOG2(EJavaFile);
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}
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DriveObserverClient::~DriveObserverClient()
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{
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    JELOG2(EJavaFile);
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    // Clear listeners collection
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    mListeners.clear();
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    disableEvents();
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}
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int DriveObserverClient::registerListener(DriveListenerInterface* aListener,
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        const int& aServerCommsAddress)
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{
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    JELOG2(EJavaFile);
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    std::set<DriveListenerInterface*>::iterator iter = mListeners.find(aListener);
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    if (iter == mListeners.end())
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    {
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        mListeners.insert(aListener);
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    }
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    enableEvents(aServerCommsAddress);
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    return mListeners.size();
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}
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int DriveObserverClient::unregisterListener(DriveListenerInterface* aListener,
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        const int& /*aServerCommsAddress*/)
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{
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    JELOG2(EJavaFile);
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    std::set<DriveListenerInterface*>::iterator iter = mListeners.find(aListener);
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    if (iter != mListeners.end())
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    {
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        mListeners.erase(iter);
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    }
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    return mListeners.size();
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}
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void DriveObserverClient::enableEvents(const int& aServerCommsAddress)
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{
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    if (!mEventsSubscribed)
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    {
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        int connecStatus = 0;
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        // Create CommsEndpoint either use find or create a new one
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        if (aServerCommsAddress == java::comms::IPC_ADDRESS_JAVA_CAPTAIN_C)
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        {
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            mComms = CommsClientEndpoint::find(L"javacaptain");
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            if (mComms == 0)
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            {
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                mComms = new CommsClientEndpoint;
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                mCommsOwner = true;
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                connecStatus = mComms->connect(java::comms::IPC_ADDRESS_JAVA_CAPTAIN_C);
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            }
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        }
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        else
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        {
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            mComms = new CommsClientEndpoint;
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            mCommsOwner = true;
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            connecStatus = mComms->connect(aServerCommsAddress);
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        }
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        if (0 == connecStatus)
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        {
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            // Register moduleId
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            mComms->registerListener(java::comms::PLUGIN_ID_DRIVE_OBSERVER_NATIVE_C, this);
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            // Subscribe to events
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            CommsMessage msg;
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            setSubscribeParams(msg, java::comms::PLUGIN_ID_DRIVE_OBSERVER_NATIVE_C);
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            if (0 == mComms->send(msg))
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            {
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                mEventsSubscribed = true;
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            }
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        }
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    }
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}
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void DriveObserverClient::disableEvents()
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{
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    if (mEventsSubscribed)
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    {
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        // Unsubscribe to events
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        CommsMessage msg;
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        setUnsubscribeMessage(msg, java::comms::PLUGIN_ID_DRIVE_OBSERVER_NATIVE_C);
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        mComms->send(msg);
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        // Unregister moduleId
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        mComms->unregisterListener(java::comms::PLUGIN_ID_DRIVE_OBSERVER_NATIVE_C, this);
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        // Close and delete CommsEndpoint if our creation
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        if (mCommsOwner)
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        {
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            mComms->disconnect();
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            delete mComms;
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            mComms = 0;
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            mCommsOwner = false;
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        }
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        mEventsSubscribed = false;
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    }
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}
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void DriveObserverClient::processMessage(java::comms::CommsMessage& aMessage)
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{
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    JELOG2(EJavaFile);
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    switch (aMessage.getMessageId())
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    {
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    case DRIVEOBSERVER_MSG_DRIVE_CHANGED_EVENT:
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    {
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        int operation;
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        driveInfo di;
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        getDriveChangedParams(aMessage, operation, di);
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        std::set<DriveListenerInterface*>::iterator iter;
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        for (iter = mListeners.begin(); iter != mListeners.end(); ++iter)
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        {
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            (*iter)->driveChanged(operation, di);
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        }
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    }
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    break;
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    default:
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        ELOG1(EJavaFile, "Unknown message received %d", aMessage.getMessageId());
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    }
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}
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} // end of namespace fileutils
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} // end of namespace java