/*
 * The HA QuickStart Example.
 *
 * This example takes the following steps:
 *
 * 1. Connect to a GemFire Distributed System which has two cache servers.
 * 2. Create a GemFire Cache with redundancy level = 1.
 * 3. Get the example Region from the Cache.
 * 4. Call registerKeys() on the Region.
 * 5. Call registerRegex() on the Region.
 * 6. Put two keys in the Region.
 * 7. Verify that the keys are destroyed via expiration in server.
 * 8. Close the Cache.
 * 9. Disconnect from the Distributed System.
 *
 */

// Include the GemFire library.
#include <gfcpp/GemfireCppCache.hpp>

// Use the "gemfire" namespace.
using namespace gemfire;

// The HA QuickStart example.
int main(int argc, char ** argv)
{
  try
  {
    // Connect to the GemFire Distributed System using the settings from the gfcpp.properties file by default.
    DistributedSystemPtr dSysPtr = DistributedSystem::connect("ExampleDistributedSystem");

    LOGINFO("Connected to the GemFire Distributed System");

    // Create a GemFire Cache with the "clientHACache.xml" Cache XML file.
    CachePtr cachePtr = CacheFactory::create("ExampleCache", dSysPtr, "XMLs/clientHACache.xml");

    LOGINFO("Created the GemFire Cache");

    // Get the example Region from the Cache which is declared in the Cache XML file.
    RegionPtr regionPtr = cachePtr->getRegion("/root/exampleRegion");

    LOGINFO("Obtained the Region from the Cache");

    // Register and Unregister Interest on Region for Some Keys.
    VectorOfCacheableKey keys;
    CacheableKeyPtr key1 = CacheableInt32::create(123);
    CacheableKeyPtr key2 = CacheableString::create("Key-123");
    keys.push_back( key1 );
    keys.push_back( key2 );
    regionPtr->registerKeys(keys);
    regionPtr->registerRegex("Key.*");

    LOGINFO("Called registerKeys() and registerKeysRegex()");

    regionPtr->put(key1, 1);
    regionPtr->put(key2, 2);

    LOGINFO("Called put() on Region");

    LOGINFO("Waiting for updates on keys");
    millisleep(10000);

    int count=0;

    if (regionPtr->get(key1) == NULLPTR) {
      LOGINFO("Verified that key1 has been destroyed");
      count++;
    }

    if (regionPtr->get(key2) == NULLPTR) {
      LOGINFO("Verified that key2 has been destroyed");
      count++;
    }

    if (count == 2) {
      LOGINFO("Verified all updates");
    }
    else {
      LOGINFO("Could not verify all updates");
    }

    regionPtr->unregisterKeys(keys);
    regionPtr->unregisterRegex("Key.*");

    LOGINFO("Unregistered keys");

    // Close the GemFire Cache.
    cachePtr->close();

    LOGINFO("Closed the GemFire Cache");

    // Disconnect from the GemFire Distributed System.
    dSysPtr->disconnect();

    LOGINFO("Disconnected from the GemFire Distributed System");
  }
  // An exception should not occur
  catch(const Exception & gemfireExcp)
  {
    LOGERROR("HACache GemFire Exception: %s", gemfireExcp.getMessage());
  }
}