path: root/media/mediaManager.cpp

/*
 * mediaManager.cpp
 *
 *  Created on: 01.09.2012
 *      Author: savop
 */

#include "../include/plugin.h"
#include "../include/media/mediaManager.h"
#include "../include/server.h"
#include "../include/parser.h"
#include "../include/tools.h"
#include <upnp/upnp.h>
#include <sstream>
#include <tntdb/statement.h>
#include <tntdb/result.h>
#include <upnp/ixml.h>
#include <memory>

namespace upnp {

#define DEFAULTPLUGINDIR PLUGINDIR

static const char* DIDLFragment = "<DIDL-Lite "
                                  "xmlns=\"urn:schemas-upnp-org:metadata-1-0/DIDL-Lite/\" "
                                  "xmlns:dc=\"http://purl.org/dc/elements/1.1/\" "
                                  "xmlns:upnp=\"urn:schemas-upnp-org:metadata-1-0/upnp/\" "
                                  "xmlns:dlna=\"urn:schemas-dlna-org:metadata-1-0/\"></DIDL-Lite>";

namespace db {

static const char* Metadata   = "metadata";
static const char* Resources  = "resources";
static const char* Details    = "details";

}

cResourceStreamer::cResourceStreamer(cMediaManager* manager, cUPnPResourceProvider* provider, cMetadata::Resource* resource)
: provider(provider)
, resource(resource)
, manager(manager)
{
  if(resource)
    tools::StringExplode(resource->GetProtocolInfo(),":",protocolInfo);
}

cResourceStreamer::~cResourceStreamer(){
  delete resource;
  delete provider;
}

std::string cResourceStreamer::GetContentFeatures() const {
  if(resource == NULL) return string();

  return protocolInfo.size() == 4 ? protocolInfo[3] : string();
}

std::string cResourceStreamer::GetContentType() const {
  if(resource == NULL) return string();

  return protocolInfo.size() == 4 ? protocolInfo[2] : string();
}

size_t cResourceStreamer::GetContentLength() const {
  if(resource == NULL) return 0;

  return resource->GetSize();
}

std::string cResourceStreamer::GetTransferMode(const string&) const {
  std::string mime = GetContentType();

  if(mime.empty()) return mime;

  if(mime.find("video",0) == 0 || mime.find("audio",0) == 0) return "Streaming";
  else return "Interactive";
}

bool cResourceStreamer::Seekable() const {
  if(!provider) return false;
  return provider->Seekable();
}

bool cResourceStreamer::Open(){
  if(!provider || !resource) return false;
  return provider->Open(resource->GetResourceUri());
}

size_t cResourceStreamer::Read(char* buf, size_t bufLen){
  if(!provider) return -1;
  return provider->Read(buf, bufLen);
}

bool cResourceStreamer::Seek(size_t offset, int origin){
  if(!provider) return false;
  return provider->Seek(offset, origin);
}

void cResourceStreamer::Close(){
  if(provider) provider->Close();
}


cMediaManager::cMediaManager()
: systemUpdateID(0)
, databaseFile("metadata.db")
, pluginDirectory(DEFAULTPLUGINDIR)
, pluginManager(NULL)
{
}

cMediaManager::~cMediaManager(){
  delete pluginManager;
}

uint32_t cMediaManager::GetSystemUpdateID() const {
  return systemUpdateID;
}

IdList cMediaManager::GetContainerUpdateIDs(bool unevented){
  IdList list = eventedContainerUpdateIDs;

  if(!unevented)
    eventedContainerUpdateIDs.clear();

  return list;
}

void cMediaManager::OnContainerUpdate(string uri, long updateID){
  ++systemUpdateID;

  eventedContainerUpdateIDs[tools::GenerateUUIDFromURL(uri)] = updateID;

  scanDirectories.push_back(uri);

  // Start scanning for changed files.
  Start();
}

StringList cMediaManager::GetSearchCapabilities() const {
  StringList list;

  list.push_back(property::object::KEY_TITLE);
  list.push_back(property::object::KEY_CREATOR);
  list.push_back(property::object::KEY_DESCRIPTION);
  list.push_back(property::object::KEY_LONG_DESCRIPTION);
  list.push_back(property::object::KEY_CLASS);
  list.push_back(property::object::KEY_DATE);
  list.push_back(property::object::KEY_LANGUAGE);
  list.push_back(property::resource::KEY_PROTOCOL_INFO);

  return list;
}

StringList cMediaManager::GetSortCapabilities() const {
  StringList list;

  list.push_back(property::object::KEY_TITLE);
  list.push_back(property::object::KEY_CREATOR);
  list.push_back(property::object::KEY_DESCRIPTION);
  list.push_back(property::object::KEY_LONG_DESCRIPTION);
  list.push_back(property::object::KEY_CLASS);
  list.push_back(property::object::KEY_DATE);
  list.push_back(property::object::KEY_LANGUAGE);
  list.push_back(property::resource::KEY_PROTOCOL_INFO);

  return list;
}

StringList cMediaManager::GetSupportedProtocolInfos() const {
  tntdb::Connection conn = connection;

  stringstream ss;

  ss << "SELECT DISTINCT `" << property::resource::KEY_PROTOCOL_INFO << "` FROM " << db::Resources;

  tntdb::Statement stmt = conn.prepare(ss.str());

  StringList list;

  for(tntdb::Statement::const_iterator it = stmt.begin(); it != stmt.end(); ++it){
    tntdb::Row row = (*it);

    cout << row.getString(property::resource::KEY_PROTOCOL_INFO) << endl;

    list.push_back(row.getString(property::resource::KEY_PROTOCOL_INFO));
  }

  return list;
}

int cMediaManager::CreateResponse(MediaRequest& request, const string& select, const string& count){
  stringstream resources, details;

  resources << "SELECT * FROM " << db::Resources << " WHERE "
            << "`" << property::object::KEY_OBJECTID << "` = "
            << ":objectID";

  details   << "SELECT * FROM " << db::Details << " WHERE "
            << "`" << property::object::KEY_OBJECTID << "` = "
            << ":objectID";

  tntdb::Statement select1 = connection.prepare(select);
  tntdb::Result result = connection.select(count);
  tntdb::Statement select2 = connection.prepare(resources.str());
  tntdb::Statement select3 = connection.prepare(details.str());

  StringList filterList = cFilterCriteria::parse(request.filter);

  request.numberReturned = 0;
  request.updateID = 0;
  request.totalMatches = result.getRow(0).getInt32("totalMatches");

  IXML_Document* DIDLDoc = NULL;
  if(ixmlParseBufferEx(DIDLFragment, &DIDLDoc)==IXML_SUCCESS){

    IXML_Node* root = ixmlNode_getFirstChild((IXML_Node*) DIDLDoc);

    tntdb::Row row, row2, row3;

    for(tntdb::Statement::const_iterator it = select1.begin(); it != select1.end(); ++it){

      row = (*it);

      IXML_Element* object;
      string upnpClass = row.getString(property::object::KEY_CLASS);

      bool isContainer;


      if(upnpClass.find("object.item",0) == 0){
        object = ixmlDocument_createElement(DIDLDoc, "item");
        isContainer = false;
      } else if(upnpClass.find("object.container",0) == 0) {
        object = ixmlDocument_createElement(DIDLDoc, "container");
        isContainer = true;
      } else {
        goto error;
      }
      ixmlNode_appendChild(root, (IXML_Node*)object);

      string objectID = row.getString(property::object::KEY_OBJECTID);

      ixml::IxmlAddProperty(DIDLDoc, object, property::object::KEY_OBJECTID, objectID);
      ixml::IxmlAddProperty(DIDLDoc, object, property::object::KEY_PARENTID, row.getString(property::object::KEY_PARENTID));
      ixml::IxmlAddProperty(DIDLDoc, object, property::object::KEY_RESTRICTED, row.getString(property::object::KEY_RESTRICTED));
      ixml::IxmlAddProperty(DIDLDoc, object, property::object::KEY_TITLE, row.getString(property::object::KEY_TITLE).substr(0, MAX_METADATA_LENGTH_S));
      ixml::IxmlAddProperty(DIDLDoc, object, property::object::KEY_CLASS, row.getString(property::object::KEY_CLASS).substr(0, MAX_METADATA_LENGTH_S));

      if(isContainer){
        ixml::IxmlAddFilteredProperty(filterList, DIDLDoc, object, property::object::KEY_CHILD_COUNT, row.getString(property::object::KEY_CHILD_COUNT));
      }
      else {
        ixml::IxmlAddFilteredProperty(filterList, DIDLDoc, object, property::object::KEY_CHANNEL_NR, row.getString(property::object::KEY_CHANNEL_NR));
        ixml::IxmlAddFilteredProperty(filterList, DIDLDoc, object, property::object::KEY_CHANNEL_NAME, row.getString(property::object::KEY_CHANNEL_NAME));
        ixml::IxmlAddFilteredProperty(filterList, DIDLDoc, object, property::object::KEY_SCHEDULED_START, row.getString(property::object::KEY_SCHEDULED_START));
        ixml::IxmlAddFilteredProperty(filterList, DIDLDoc, object, property::object::KEY_SCHEDULED_END, row.getString(property::object::KEY_SCHEDULED_END));
      }

      ixml::IxmlAddFilteredProperty(filterList, DIDLDoc, object, property::object::KEY_CREATOR, row.getString(property::object::KEY_CREATOR));
      ixml::IxmlAddFilteredProperty(filterList, DIDLDoc, object, property::object::KEY_DESCRIPTION, row.getString(property::object::KEY_DESCRIPTION));
      ixml::IxmlAddFilteredProperty(filterList, DIDLDoc, object, property::object::KEY_LONG_DESCRIPTION, row.getString(property::object::KEY_LONG_DESCRIPTION));
      ixml::IxmlAddFilteredProperty(filterList, DIDLDoc, object, property::object::KEY_DATE, row.getString(property::object::KEY_DATE));
      ixml::IxmlAddFilteredProperty(filterList, DIDLDoc, object, property::object::KEY_LANGUAGE, row.getString(property::object::KEY_LANGUAGE));


      select2.setString("objectID", objectID);

      for(tntdb::Statement::const_iterator it2 = select2.begin(); it2 != select2.end(); ++it2){
          row2 = (*it2);

          boost::shared_ptr<cUPnPResourceProvider> provider(CreateResourceProvider(row2.getString(property::resource::KEY_RESOURCE)));

          if(provider.get()){
            string resourceURI = provider->GetHTTPUri(row2.getString(property::resource::KEY_RESOURCE));

            IXML_Element* resource = ixml::IxmlAddFilteredProperty(filterList, DIDLDoc, object, property::resource::KEY_RESOURCE, resourceURI);

            if(resource){
              ixml::IxmlAddFilteredProperty(filterList, DIDLDoc, object, property::resource::KEY_PROTOCOL_INFO, row2.getString(property::resource::KEY_PROTOCOL_INFO));
              ixml::IxmlAddFilteredProperty(filterList, DIDLDoc, object, property::resource::KEY_BITRATE, row2.getString(property::resource::KEY_BITRATE));
              ixml::IxmlAddFilteredProperty(filterList, DIDLDoc, object, property::resource::KEY_BITS_PER_SAMPLE, row2.getString(property::resource::KEY_BITS_PER_SAMPLE));
              ixml::IxmlAddFilteredProperty(filterList, DIDLDoc, object, property::resource::KEY_COLOR_DEPTH, row2.getString(property::resource::KEY_COLOR_DEPTH));
              ixml::IxmlAddFilteredProperty(filterList, DIDLDoc, object, property::resource::KEY_DURATION, row2.getString(property::resource::KEY_DURATION));
              ixml::IxmlAddFilteredProperty(filterList, DIDLDoc, object, property::resource::KEY_NR_AUDIO_CHANNELS, row2.getString(property::resource::KEY_NR_AUDIO_CHANNELS));
              ixml::IxmlAddFilteredProperty(filterList, DIDLDoc, object, property::resource::KEY_RESOLUTION, row2.getString(property::resource::KEY_RESOLUTION));
              ixml::IxmlAddFilteredProperty(filterList, DIDLDoc, object, property::resource::KEY_SAMPLE_FREQUENCY, row2.getString(property::resource::KEY_SAMPLE_FREQUENCY));
              ixml::IxmlAddFilteredProperty(filterList, DIDLDoc, object, property::resource::KEY_SIZE, tools::ToString(row2.getInt64(property::resource::KEY_SIZE)));
            }
          }

      }

      select3.setString("objectID", objectID);

      for(tntdb::Statement::const_iterator it3 = select3.begin(); it3 != select2.end(); ++it3){
        row3 = (*it3);

        ixml::IxmlAddFilteredProperty(filterList, DIDLDoc, object, row3.getString("property"), row3.getString("value"));
      }

      ++request.numberReturned;
    }

    request.result = ixmlDocumenttoString(DIDLDoc);

    cout << request.result << endl;

    ixmlDocument_free(DIDLDoc);
    return UPNP_E_SUCCESS;
  }

  error:
  esyslog("UPnP\tFailed to process the request");
  ixmlDocument_free(DIDLDoc);
  return UPNP_CDS_E_CANT_PROCESS_REQUEST;
}

int cMediaManager::Browse(BrowseRequest& request){
  stringstream metadata, count, where;

  metadata << "SELECT *,(SELECT COUNT(1) FROM " << db::Metadata << " m WHERE "
      << "m.`" << property::object::KEY_PARENTID << "` = "
      << "p.`" << property::object::KEY_OBJECTID << "`) as "
      << "`" << property::object::KEY_CHILD_COUNT << "` FROM " << db::Metadata << " p WHERE ";

  count << "SELECT COUNT(1) as totalMatches FROM " << db::Metadata << " WHERE ";

  switch (request.browseMetadata){
  case CD_BROWSE_METADATA:
    where << "`" << property::object::KEY_OBJECTID << "`";

    // Set the offset and count to 0,1 as this is the only allowed option here.
    request.requestCount = 1;
    request.startIndex = 0;
    break;
  case CD_BROWSE_DIRECT_CHILDREN:
    where << "`" << property::object::KEY_PARENTID << "`";
    break;
  default:
    esyslog("UPnP\tInvalid arguments. Browse flag invalid");
    return UPNP_SOAP_E_INVALID_ARGS;
  }

  where << " = '" << request.objectID << "'";

  metadata << where.str();
  count << where.str();

  cSortCriteria::SortCriteriaList list = cSortCriteria::parse(request.sortCriteria);
  if(!list.empty()){
    metadata << " ORDER BY ";
    upnp::cSortCriteria::SortCriteriaList::iterator it = list.begin();
    metadata << (*it).property << " " << ((*it).sortDescending ? "DESC" : "ASC");
    for(++it; it != list.end(); ++it){
      metadata << ", " << (*it).property << " " << ((*it).sortDescending ? "DESC" : "ASC");
    }
  }

  if(request.requestCount){
    metadata << " LIMIT " << request.startIndex << ", " << request.requestCount;
  }

  int ret = 0;
  if((ret = CreateResponse(request, metadata.str(), count.str())) == UPNP_E_SUCCESS) return ret;

  return (request.totalMatches == 0 && request.numberReturned == 0) ? UPNP_CDS_E_CANT_PROCESS_REQUEST : UPNP_E_SUCCESS;
}

int cMediaManager::Search(SearchRequest& request){
  request.numberReturned = 0;
  request.totalMatches = 0;
  request.updateID = 0;

  stringstream metadata, count;

  // TODO: Finish search method

  int ret = 0;
  if((ret = CreateResponse(request, metadata.str(), count.str())) == UPNP_E_SUCCESS) return ret;

  return (request.totalMatches == 0 && request.numberReturned == 0) ? UPNP_CDS_E_CANT_PROCESS_REQUEST : UPNP_E_SUCCESS;
}

cMediaManager::BrowseFlag cMediaManager::ToBrowseFlag(const std::string& browseFlag) {
  if      (browseFlag.compare("BrowseMetadata") == 0)
    return CD_BROWSE_METADATA;
  else if (browseFlag.compare("BrowseDirectChildren") == 0)
    return CD_BROWSE_DIRECT_CHILDREN;
  else
    return NumBrowseFlags;
}

bool cMediaManager::Initialise(){

  pluginManager = new upnp::cPluginManager(this);

  if(!pluginManager->LoadPlugins(pluginDirectory)){
    esyslog("UPnP\tError while loading upnp plugin directory '%s'", pluginDirectory);
    return false;
  }

  try {
    stringstream ss;
    ss << "sqlite:" << databaseFile;

    connection = tntdb::connect(ss.str());

    dsyslog("UPNP\tPreparing database structure...");

    if(CheckIntegrity()) return true;

    connection.beginTransaction();

    ss.str(string());

    ss << "CREATE TABLE " << db::Metadata
       << "("
       << "`" << property::object::KEY_OBJECTID          << "` TEXT    PRIMARY KEY,"
       << "`" << property::object::KEY_PARENTID          << "` TEXT    NOT NULL,"
       << "`" << property::object::KEY_TITLE             << "` TEXT    NOT NULL,"
       << "`" << property::object::KEY_CLASS             << "` TEXT    NOT NULL,"
       << "`" << property::object::KEY_RESTRICTED        << "` INTEGER NOT NULL,"
       << "`" << property::object::KEY_CREATOR           << "` TEXT,"
       << "`" << property::object::KEY_DESCRIPTION       << "` TEXT,"
       << "`" << property::object::KEY_LONG_DESCRIPTION  << "` TEXT,"
       << "`" << property::object::KEY_DATE              << "` TEXT,"
       << "`" << property::object::KEY_LANGUAGE          << "` TEXT,"
       << "`" << property::object::KEY_CHANNEL_NR        << "` INTEGER,"
       << "`" << property::object::KEY_CHANNEL_NAME      << "` TEXT,"
       << "`" << property::object::KEY_SCHEDULED_START   << "` TEXT,"
       << "`" << property::object::KEY_SCHEDULED_END     << "` TEXT"
       << "`" << property::object::KEY_OBJECT_UPDATE_ID  << "` INTEGER"
       << ")";

    tntdb::Statement objectTable = connection.prepare(ss.str());

    objectTable.execute();

    ss.str(string());

    ss << "CREATE TABLE " << db::Details
       << "("
       << "  `propertyID` INTEGER PRIMARY KEY,"
       << "  `" << property::object::KEY_OBJECTID << "` TEXT "
       << "  REFERENCES metadata (`"<< property::object::KEY_OBJECTID <<"`) ON DELETE CASCADE ON UPDATE CASCADE,"
       << "  `property`   TEXT,"
       << "  `value`      TEXT"
       << ")";

    tntdb::Statement detailsTable = connection.prepare(ss.str());

    detailsTable.execute();

    ss.str(string());

    ss << "CREATE TABLE " << db::Resources
       << "("
       << "  resourceID        INTEGER PRIMARY KEY,"
       << "  `" << property::object::KEY_OBJECTID << "` TEXT "
       << "  REFERENCES metadata (`"<< property::object::KEY_OBJECTID <<"`) ON DELETE CASCADE ON UPDATE CASCADE,"
       << "`" << property::resource::KEY_RESOURCE           << "` TEXT    NOT NULL,"
       << "`" << property::resource::KEY_PROTOCOL_INFO      << "` TEXT    NOT NULL,"
       << "`" << property::resource::KEY_SIZE               << "` INTEGER,"
       << "`" << property::resource::KEY_DURATION           << "` TEXT,"
       << "`" << property::resource::KEY_RESOLUTION         << "` TEXT,"
       << "`" << property::resource::KEY_BITRATE            << "` INTEGER,"
       << "`" << property::resource::KEY_SAMPLE_FREQUENCY   << "` INTEGER,"
       << "`" << property::resource::KEY_BITS_PER_SAMPLE    << "` INTEGER,"
       << "`" << property::resource::KEY_NR_AUDIO_CHANNELS  << "` INTEGER,"
       << "`" << property::resource::KEY_COLOR_DEPTH        << "` INTEGER"
       << ")";

    tntdb::Statement resourcesTable = connection.prepare(ss.str());

    resourcesTable.execute();

    ss.str(string());

    ss << "INSERT INTO " << db::Metadata << " ("
       << "`" << property::object::KEY_OBJECTID          << "`, "
       << "`" << property::object::KEY_PARENTID          << "`, "
       << "`" << property::object::KEY_TITLE             << "`, "
       << "`" << property::object::KEY_CLASS             << "`, "
       << "`" << property::object::KEY_RESTRICTED        << "`, "
       << "`" << property::object::KEY_CREATOR           << "`, "
       << "`" << property::object::KEY_DESCRIPTION       << "`, "
       << "`" << property::object::KEY_LONG_DESCRIPTION  << "`) "
       << " VALUES (:objectID, :parentID, :title, :class, :restricted, :creator, :description, :longDescription)";

    tntdb::Statement rootContainer = connection.prepare(ss.str());

    const cMediaServer::Description desc = cMediaServer::GetInstance()->GetServerDescription();

    rootContainer.setString("objectID", "0")
                 .setString("parentID", "-1")
                 .setString("title", desc.friendlyName)
                 .setString("creator", desc.manufacturer)
                 .setString("class", "object.container")
                 .setBool("restricted", true)
                 .setString("description", desc.modelName)
                 .setString("longDescription", desc.modelDescription)
                 .execute();

    connection.commitTransaction();

    return true;

  } catch (const std::exception& e) {
    esyslog("UPnP\tException occurred while initializing database: %s", e.what());

    connection.rollbackTransaction();

    return false;
  }

  return false;
}

bool cMediaManager::CheckIntegrity(){

  tntdb::Statement checkTable = connection.prepare(
          "SELECT name FROM sqlite_master WHERE type='table' AND name=:table;"
          );

  if( checkTable.setString("table", db::Metadata).select().empty() ){
    isyslog("UPnP\tTable '%s' does not exist", db::Metadata);
    return false;
  }
  if( checkTable.setString("table", db::Details).select().empty() ){
    isyslog("UPnP\tTable '%s' does not exist", db::Details);
    return false;
  }
  if( checkTable.setString("table", db::Resources).select().empty() ){
    isyslog("UPnP\tTable '%s' does not exist", db::Resources);
    return false;
  }

  stringstream ss;

  ss << "SELECT `" << property::object::KEY_OBJECTID << "` FROM " << db::Metadata << " WHERE `"
                  << property::object::KEY_OBJECTID << "` = '0' AND `"
                  << property::object::KEY_PARENTID << "` = '-1';";

  tntdb::Statement checkObject = connection.prepare(ss.str());

  if( checkObject.select().size() != 1 ){
    isyslog("UPnP\tRoot item does not exist or more than one root item exist.");
    return false;
  }

  return true;
}

cResourceStreamer* cMediaManager::GetResourceStreamer(const string& objectID, int resourceID){
  dsyslog("UPnP\tTry to stream resource[%d] of objectID %s", resourceID, objectID.c_str());

  stringstream resourceSQL;

  resourceSQL << "SELECT * FROM " << db::Resources << " WHERE "
              << "`" << property::object::KEY_OBJECTID << "` = "
              << ":objectID"
              << " ORDER BY resourceID ASC LIMIT " << resourceID << ",1";

  tntdb::Statement select = connection.prepare(resourceSQL.str());

  tntdb::Result result = select.setString("objectID", objectID)
                               .select();

  if(result.size() == 0) return NULL;

  tntdb::Row row = result.getRow(0);

  cMetadata::Resource* resource = new cMetadata::Resource();

  bool ret = true;
  if(!row.isNull(property::resource::KEY_BITRATE))
    ret = resource->SetBitrate(row.getInt32(property::resource::KEY_BITRATE));
  if(!row.isNull(property::resource::KEY_BITS_PER_SAMPLE))
    ret = resource->SetBitsPerSample(row.getInt32(property::resource::KEY_BITS_PER_SAMPLE));
  if(!row.isNull(property::resource::KEY_COLOR_DEPTH))
    ret = resource->SetColorDepth(row.getInt32(property::resource::KEY_COLOR_DEPTH));
  if(!row.isNull(property::resource::KEY_DURATION))
    ret = resource->SetDuration(row.getString(property::resource::KEY_DURATION));
  if(!row.isNull(property::resource::KEY_NR_AUDIO_CHANNELS))
    ret = resource->SetNrAudioChannels(row.getInt32(property::resource::KEY_NR_AUDIO_CHANNELS));
  if(!row.isNull(property::resource::KEY_PROTOCOL_INFO))
    ret = resource->SetProtocolInfo(row.getString(property::resource::KEY_PROTOCOL_INFO));
  if(!row.isNull(property::resource::KEY_RESOLUTION))
    ret = resource->SetResolution(row.getString(property::resource::KEY_RESOLUTION));
  if(!row.isNull(property::resource::KEY_RESOURCE))
    ret = resource->SetResourceUri(row.getString(property::resource::KEY_RESOURCE));
  if(!row.isNull(property::resource::KEY_SAMPLE_FREQUENCY))
    ret = resource->SetSampleFrequency(row.getInt32(property::resource::KEY_SAMPLE_FREQUENCY));
  if(!row.isNull(property::resource::KEY_SIZE))
    ret = resource->SetSize(row.getInt32(property::resource::KEY_SIZE));

  if(!ret) {
    delete resource;
    return NULL;
  }

  cUPnPResourceProvider* provider = CreateResourceProvider(resource->GetResourceUri());

  cResourceStreamer* streamer = new cResourceStreamer(this, provider, resource);

  return streamer;
}

cUPnPResourceProvider* cMediaManager::CreateResourceProvider(const string& uri){
  return NULL;
}

void cMediaManager::SetDatabaseFile(const string& file){
  if(file.empty()) databaseFile = "metadata.db";
  else databaseFile = file;
}

void cMediaManager::SetPluginDirectory(const string& directory){
  if(directory.empty()) pluginDirectory = DEFAULTPLUGINDIR;
  else pluginDirectory = directory;
}

void cMediaManager::Action(){

}

}  // namespace upnp