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/* $Id$ */
/***************************************************************************
query.cpp - A query interface to select RSS feeds.
-------------------
begin : Saturday 15 February 2003
copyright : (C) 2003 by Ian Reinhart Geiser
email : [email protected]
***************************************************************************/
/***************************************************************************
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
***************************************************************************/
#include "cache.h"
#include "query.h"
#include <kdebug.h>
#include <krfcdate.h>
#include "service.h"
#include "xmlrpciface.h"
using KXMLRPC::Server;
void SlotCaller::call( QObject *object, const char *slot,
const KXMLRPC::Query::Result &result )
{
SlotCaller caller;
connect( &caller, SIGNAL( signal( const KXMLRPC::Query::Result &) ),
object, slot );
emit caller.signal( result );
}
QueryService::QueryService( RSSService *service ) : QObject(), DCOPObject( "RSSQuery" ),
m_service( service )
{
m_xmlrpcServer = new KXMLRPC::Server( KURL( "http://www.syndic8.com/xmlrpc.php"), this );
}
QStringList QueryService::listActive()
{
if ( !m_service )
return QStringList();
return m_service->list();
}
void QueryService::cachedCall( const QString &method,
const QValueList<QVariant> &args,
const char *slot )
{
kdDebug() << "Calling " << method << endl;
const QString cacheKey = Cache::getCacheKey( m_xmlrpcServer->url().url(),
method, args );
CacheEntry *cacheEntry = Cache::self().find( cacheKey );
if ( cacheEntry != 0 && cacheEntry->isValid() ) {
kdDebug() << "Using cached result." << endl;
SlotCaller::call( this, slot, cacheEntry->result() );
} else {
kdDebug() << "No cached result found, querying server." << endl;
m_xmlrpcServer->call( method, args, this, slot );
}
}
void QueryService::updateCache( const KXMLRPC::Query::Result &result )
{
const QString cacheKey = Cache::getCacheKey( result.server(),
result.method(),
result.args() );
CacheEntry *cacheEntry = Cache::self().find( cacheKey );
if ( cacheEntry == 0 ) {
kdDebug() << "Inserting returned result into cache." << endl;
Cache::self().insert( cacheKey, result );
}
}
void QueryService::findFeeds( const QString &query )
{
kdDebug() << "QueryService::findFeeds()" << endl;
QStringList args;
args << query << "headlines_rank";
cachedCall( "syndic8.FindFeeds", Server::toVariantList( args ),
SLOT( slotFoundFeeds( const KXMLRPC::Query::Result & ) ) );
}
void QueryService::findSites( const QString& query )
{
kdDebug() << "QueryService::findSites()" << endl;
cachedCall( "syndic8.FindSites", Server::toVariantList( query ),
SLOT( slotFoundFeeds( const KXMLRPC::Query::Result & ) ) );
}
void QueryService::getFeedInfo( const QVariant& ids )
{
kdDebug() << "QueryService::getFeedInfo()" << endl;
cachedCall( "syndic8.GetFeedInfo", Server::toVariantList( ids ),
SLOT( slotGotFeedInfo( const KXMLRPC::Query::Result & ) ) );
}
void QueryService::getCategories( const QString &category )
{
kdDebug() << "QueryService::getCategories()" << endl;
if ( category == "Top" ) {
cachedCall( "syndic8.GetCategoryRoots", Server::toVariantList( QString::fromLatin1( "DMOZ" ) ),
SLOT( slotGotCategories( const KXMLRPC::Query::Result & ) ) );
} else {
QStringList args;
args << "DMOZ" << category;
cachedCall( "syndic8.GetCategoryChildren", Server::toVariantList( args ),
SLOT( slotGotCategories( const KXMLRPC::Query::Result & ) ) );
}
}
void QueryService::getFeedsInCategory( const QString &category )
{
kdDebug() << "QueryService::getFeedsInCategory()" << endl;
QStringList args;
args << "DMOZ" << category;
cachedCall( "syndic8.GetFeedsInCategory", Server::toVariantList( args ),
SLOT( slotGotFeedsInCategory( const KXMLRPC::Query::Result & ) ) );
}
void QueryService::slotFoundFeeds( const KXMLRPC::Query::Result &result )
{
kdDebug() << "QueryService::slotFoundFeeds()" << endl;
if ( !result.success() ) {
kdWarning() << "Failed to query for feeds: " << result.errorString() << endl;
return;
}
updateCache( result );
QValueList<int> ids;
const QValueList<QVariant> values = result.data()[ 0 ].toList();
QValueList<QVariant>::ConstIterator it = values.begin();
QValueList<QVariant>::ConstIterator end = values.end();
for ( ; it != end; ++it ) {
ids << ( *it ).toInt();
kdDebug() << "Found feed #" << ( *it ).toInt() << endl;
}
feedIds( ids );
}
void QueryService::slotGotFeedInfo( const KXMLRPC::Query::Result &result )
{
kdDebug() << "QueryService::slotGotFeedInfo()" << endl;
if ( !result.success() ) {
kdWarning() << "Failed to get feed info: " << result.errorString() << endl;
return;
}
updateCache( result );
QMap<QString, QString> links;
QValueList<RSSNewsFeed> feeds;
const QValueList<QVariant> feedInfos = result.data();
QValueList<QVariant>::ConstIterator it = feedInfos.begin();
QValueList<QVariant>::ConstIterator end = feedInfos.end();
for ( ; it != end; ++it ) {
const QMap<QString, QVariant> feedInfo = ( *it ).toMap();
const QString name = feedInfo[ "sitename" ].toString();
const QString link = feedInfo[ "dataurl" ].toString();
links[ name ] = link;
RSSNewsFeed feed;
feed.m_id = feedInfo[ "feedid" ].toUInt();
feed.m_name = feedInfo[ "sitename" ].toString();
feed.m_homePage = feedInfo[ "siteurl" ].toString();
feed.m_sourceFile = feedInfo[ "dataurl" ].toString();
feed.m_imageUrl = feedInfo[ "imageurl" ].toString();
feed.m_webmaster = feedInfo[ "webmaster" ].toString();
feed.m_editor = feedInfo[ "editor" ].toString();
feed.m_publisher = feedInfo[ "publisher" ].toString();
feed.m_creator = feedInfo[ "creator" ].toString();
QDateTime dateTime;
dateTime.setTime_t( KRFCDate::parseDate( feedInfo[ "date_created" ].toString() ) );
feed.m_dateCreated = dateTime;
dateTime.setTime_t( KRFCDate::parseDate( feedInfo[ "date_approved" ].toString() ) );
feed.m_dateApproved = dateTime;
dateTime.setTime_t( KRFCDate::parseDate( feedInfo[ "date_xml_changed" ].toString() ) );
feed.m_dateXmlChanged = dateTime;
feed.m_fetchable = feedInfo[ "fetchable" ].toBool();
feed.m_description = feedInfo[ "description" ].toString();
feed.m_origin = feedInfo[ "origin" ].toString();
feed.m_languageCode = feedInfo[ "lang_code" ].toString();
feed.m_status = feedInfo[ "status" ].toString();
feed.m_version = feedInfo[ "rss_version" ].toString();
feed.m_views = feedInfo[ "views" ].toUInt();
feed.m_headlinesPerDay = feedInfo[ "headlines_per_day" ].toUInt();
feed.m_headlinesRank = feedInfo[ "headlines_rank" ].toUInt();
feed.m_toolkit = feedInfo[ "toolkit" ].toString();
feed.m_toolkitVersion = feedInfo[ "toolkit_version" ].toString();
feed.m_pollingInterval = feedInfo[ "cur_polling_interval" ].toUInt();
dateTime.setTime_t( feedInfo[ "last_poll_time" ].toUInt() );
feed.m_lastPoll = dateTime;
// ### feed.m_categories missing here!
feeds << feed;
kdDebug() << "Retrieved data for newsfeed '" << name << "' <" << link << ">" << endl;
}
feedInfo( links );
feedInfo( feeds );
}
void QueryService::slotGotCategories( const KXMLRPC::Query::Result &result )
{
kdDebug() << "QueryService::slotGotCategories()" << endl;
if ( !result.success() ) {
kdWarning() << "Failed to get the list of categories: " << result.errorString() << endl;
return;
}
updateCache( result );
QStringList categories;
const QValueList<QVariant> cats = result.data()[ 0 ].toList();
QValueList<QVariant>::ConstIterator it = cats.begin();
QValueList<QVariant>::ConstIterator end = cats.end();
for ( ; it != end; ++it )
categories << ( *it ).toString();
kdDebug() << "Got categories: " << categories.join( ", " ) << endl;
gotCategories( categories );
}
void QueryService::slotGotFeedsInCategory( const KXMLRPC::Query::Result &result )
{
kdDebug() << "QueryService::slotGotFeedsInCategory()" << endl;
if ( !result.success() ) {
kdWarning() << "Failed to get the feeds in the given category: " << result.errorString() << endl;
return;
}
updateCache( result );
QValueList<int> ids;
const QValueList<QVariant> values = result.data()[ 0 ].toList();
QValueList<QVariant>::ConstIterator it = values.begin();
QValueList<QVariant>::ConstIterator end = values.end();
for ( ; it != end; ++it ) {
ids << ( *it ).toInt();
kdDebug() << "Got feed in category: #" << ( *it ).toInt() << endl;
}
gotFeedsInCategory( ids );
}
#include "query.moc"
// vim:ts=4:sw=4:noet
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