/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

#include "CmsTemplateTest.h"

#include <activemq/util/IntegrationCommon.h>
#include <activemq/core/ActiveMQConnectionFactory.h>
#include <activemq/cmsutil/CmsTemplate.h>
#include <activemq/cmsutil/MessageCreator.h>
#include <activemq/exceptions/ActiveMQException.h>

#include <decaf/util/concurrent/CountDownLatch.h>
#include <decaf/lang/Thread.h>

using namespace std;
using namespace cms;
using namespace activemq;
using namespace activemq::test;
using namespace activemq::util;
using namespace activemq::core;
using namespace activemq::exceptions;
using namespace decaf;
using namespace decaf::util;
using namespace decaf::util::concurrent;
using namespace decaf::lang;

////////////////////////////////////////////////////////////////////////////////
namespace activemq {
namespace test {

    class TextMessageCreator : public activemq::cmsutil::MessageCreator {
    private:

        std::string text;

    public:

        TextMessageCreator(const std::string& text) :
            activemq::cmsutil::MessageCreator(), text(text) {
        }

        virtual ~TextMessageCreator() {
        }

        std::string getText() const {
            return text;
        }

        virtual cms::Message* createMessage(cms::Session* session) throw (cms::CMSException) {

            return session->createTextMessage(text);
        }
    };

    class Sender: public decaf::lang::Runnable {
    private:

        activemq::core::ActiveMQConnectionFactory cf;
        activemq::cmsutil::CmsTemplate cmsTemplate;
        int count;

    public:

        Sender(const std::string& url, bool pubSub, const std::string& destName, int count) :
            decaf::lang::Runnable(), cf(), cmsTemplate(), count(count) {

            cf.setBrokerURI(url);
            cmsTemplate.setConnectionFactory(&cf);
            cmsTemplate.setPubSubDomain(pubSub);
            cmsTemplate.setDefaultDestinationName(destName);
            cmsTemplate.setDeliveryPersistent(false);
        }

        virtual ~Sender() {}

        virtual void run() {
            try {

                // Send a batch of messages.
                TextMessageCreator tmc("hello world");
                for (int ix = 0; ix < count; ++ix) {
                    cmsTemplate.send(&tmc);
                }

            } catch (cms::CMSException& ex) {
                ex.printStackTrace();
            }
        }
    };

    class Receiver: public decaf::lang::Runnable {
    private:

        activemq::core::ActiveMQConnectionFactory cf;
        activemq::cmsutil::CmsTemplate cmsTemplate;
        int count;
        int numReceived;
        decaf::util::concurrent::CountDownLatch ready;

    public:

        Receiver(const std::string& url, bool pubSub, const std::string& destName, int count) :
            decaf::lang::Runnable(), cf(), cmsTemplate(), count(count), numReceived(), ready(1) {

            cf.setBrokerURI(url);
            cmsTemplate.setConnectionFactory(&cf);
            cmsTemplate.setPubSubDomain(pubSub);
            cmsTemplate.setDefaultDestinationName(destName);
            cmsTemplate.setDeliveryPersistent(false);
        }

        virtual ~Receiver() {
        }

        int getNumReceived() const {
            return numReceived;
        }

        virtual void waitUntilReady() {
            ready.await();
        }

        virtual void run() {

            try {
                numReceived = 0;

                ready.countDown();
                // Receive a batch of messages.
                for (int ix = 0; ix < count; ++ix) {
                    cms::Message* message = cmsTemplate.receive();
                    numReceived++;
                    delete message;
                }

            } catch (cms::CMSException& ex) {
                ex.printStackTrace();
            }
        }
    };
}}

////////////////////////////////////////////////////////////////////////////////
void CmsTemplateTest::testBasics() {

    const unsigned int NUM_MESSAGES = IntegrationCommon::defaultMsgCount;

    Receiver receiver(this->getBrokerURL(), false, "testBasics1", NUM_MESSAGES);
    Thread rt(&receiver);
    rt.start();

    // Wait for receiver thread to start.
    receiver.waitUntilReady();

    Sender sender(this->getBrokerURL(), false, "testBasics1", NUM_MESSAGES);
    Thread st(&sender);
    st.start();

    st.join();
    rt.join();

    unsigned int numReceived = receiver.getNumReceived();
    CPPUNIT_ASSERT( numReceived == NUM_MESSAGES );
}

////////////////////////////////////////////////////////////////////////////////
void CmsTemplateTest::testReceiveException() {

    // First, try receiving from a bad url
    activemq::core::ActiveMQConnectionFactory cf("tcp://localhost:61666");
    activemq::cmsutil::CmsTemplate cmsTemplate(&cf);
    cmsTemplate.setDefaultDestinationName("testReceive1");

    try {
        cmsTemplate.receive();
        CPPUNIT_FAIL("failed to throw expected exception");
    } catch (CMSException& ex) {
        // Expected.
    }

    // Now change to a good url and verify that we can reuse the same
    // CmsTemplate successfully.
    activemq::core::ActiveMQConnectionFactory cf2(this->getBrokerURL());
    cmsTemplate.setConnectionFactory(&cf2);

    // Send 1 message.
    Sender sender(this->getBrokerURL(), false, "testReceive1", 1);
    Thread st(&sender);
    st.start();
    st.join();

    // Receive the message.
    cms::Message* message = cmsTemplate.receive();
    CPPUNIT_ASSERT( message != NULL );
    delete message;
}

////////////////////////////////////////////////////////////////////////////////
void CmsTemplateTest::testSendException() {

    // First, try sending to a bad url.
    activemq::core::ActiveMQConnectionFactory cf("tcp://localhost:61666");
    activemq::cmsutil::CmsTemplate cmsTemplate(&cf);
    cmsTemplate.setDefaultDestinationName("testSend1");
    try {
        TextMessageCreator msgCreator("hello world");
        cmsTemplate.send(&msgCreator);
        CPPUNIT_FAIL( "failed to throw expected exception" );
    } catch (CMSException& ex) {
        // Expected.
    }

    // Now change to a good url and verify that we can reuse the same
    // CmsTemplate successfully.
    activemq::core::ActiveMQConnectionFactory cf2(this->getBrokerURL());
    cmsTemplate.setConnectionFactory(&cf2);
    TextMessageCreator msgCreator("hello world");
    cmsTemplate.send(&msgCreator);
}