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/***************************************************************************
copyright : (C) 2007 by Robby Stephenson
email : [email protected]
***************************************************************************/
/***************************************************************************
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of version 2 of the GNU General Public License as *
* published by the Free Software Foundation; *
* *
***************************************************************************/
#include "citebasefetcher.h"
#include "messagehandler.h"
#include "../translators/bibteximporter.h"
#include "../tellico_kernel.h"
#include "../tellico_utils.h"
#include "../collection.h"
#include "../entry.h"
#include "../core/netaccess.h"
#include "../filehandler.h"
#include "../tellico_debug.h"
#include <klocale.h>
#include <qlabel.h>
#include <qlayout.h>
// #define CITEBASE_TEST
namespace {
// always bibtex
static const char* CITEBASE_BASE_URL = "http://www.citebase.org/openurl/?url_ver=Z39.88-2004&svc_id=bibtex";
}
using Tellico::Fetch::CitebaseFetcher;
CitebaseFetcher::CitebaseFetcher(QObject* parent_)
: Fetcher(parent_), m_job(0), m_started(false) {
}
CitebaseFetcher::~CitebaseFetcher() {
}
QString CitebaseFetcher::defaultName() {
return QString::fromLatin1("Citebase");
}
QString CitebaseFetcher::source() const {
return m_name.isEmpty() ? defaultName() : m_name;
}
bool CitebaseFetcher::canFetch(int type) const {
return type == Data::Collection::Bibtex;
}
void CitebaseFetcher::readConfigHook(const KConfigGroup&) {
}
void CitebaseFetcher::search(FetchKey key_, const QString& value_) {
m_key = key_;
m_value = value_.stripWhiteSpace();
m_started = true;
if(!canFetch(Kernel::self()->collectionType())) {
message(i18n("%1 does not allow searching for this collection type.").arg(source()), MessageHandler::Warning);
stop();
return;
}
m_data.truncate(0);
// myDebug() << "CitebaseFetcher::search() - value = " << value_ << endl;
KURL u = searchURL(m_key, m_value);
if(u.isEmpty()) {
stop();
return;
}
m_job = KIO::get(u, false, false);
connect(m_job, SIGNAL(data(KIO::Job*, const QByteArray&)),
SLOT(slotData(KIO::Job*, const QByteArray&)));
connect(m_job, SIGNAL(result(KIO::Job*)),
SLOT(slotComplete(KIO::Job*)));
}
void CitebaseFetcher::stop() {
if(!m_started) {
return;
}
// myDebug() << "CitebaseFetcher::stop()" << endl;
if(m_job) {
m_job->kill();
m_job = 0;
}
m_data.truncate(0);
m_started = false;
emit signalDone(this);
}
void CitebaseFetcher::slotData(KIO::Job*, const QByteArray& data_) {
QDataStream stream(m_data, IO_WriteOnly | IO_Append);
stream.writeRawBytes(data_.data(), data_.size());
}
void CitebaseFetcher::slotComplete(KIO::Job* job_) {
// myDebug() << "CitebaseFetcher::slotComplete()" << endl;
// since the fetch is done, don't worry about holding the job pointer
m_job = 0;
if(job_->error()) {
job_->showErrorDialog(Kernel::self()->widget());
stop();
return;
}
if(m_data.isEmpty()) {
myDebug() << "CitebaseFetcher::slotComplete() - no data" << endl;
stop();
return;
}
#if 0
kdWarning() << "Remove debug from citebasefetcher.cpp" << endl;
QFile f(QString::fromLatin1("/tmp/test.bib"));
if(f.open(IO_WriteOnly)) {
QTextStream t(&f);
t.setEncoding(QTextStream::UnicodeUTF8);
t << QCString(m_data, m_data.size()+1);
}
f.close();
#endif
Import::BibtexImporter imp(QString::fromUtf8(m_data, m_data.size()));
Data::CollPtr coll = imp.collection();
if(!coll) {
myDebug() << "CitebaseFetcher::slotComplete() - no valid result" << endl;
stop();
return;
}
Data::EntryVec entries = coll->entries();
for(Data::EntryVec::Iterator entry = entries.begin(); entry != entries.end(); ++entry) {
if(!m_started) {
// might get aborted
break;
}
QString desc = entry->field(QString::fromLatin1("author"))
+ QChar('/') + entry->field(QString::fromLatin1("publisher"));
if(!entry->field(QString::fromLatin1("year")).isEmpty()) {
desc += QChar('/') + entry->field(QString::fromLatin1("year"));
}
SearchResult* r = new SearchResult(this, entry->title(), desc, entry->field(QString::fromLatin1("isbn")));
m_entries.insert(r->uid, Data::EntryPtr(entry));
emit signalResultFound(r);
}
stop(); // required
}
Tellico::Data::EntryPtr CitebaseFetcher::fetchEntry(uint uid_) {
return m_entries[uid_];
}
KURL CitebaseFetcher::searchURL(FetchKey key_, const QString& value_) const {
KURL u(QString::fromLatin1(CITEBASE_BASE_URL));
switch(key_) {
case ArxivID:
{
// remove prefix and/or version number
QString value = value_;
value.remove(QRegExp(QString::fromLatin1("^arxiv:"), false));
value.remove(QRegExp(QString::fromLatin1("v\\d+$")));
u.addQueryItem(QString::fromLatin1("rft_id"), QString::fromLatin1("oai:arXiv.org:%1").arg(value));
}
break;
default:
kdWarning() << "CitebaseFetcher::search() - key not recognized: " << m_key << endl;
return KURL();
}
#ifdef CITEBASE_TEST
u = KURL::fromPathOrURL(QString::fromLatin1("/home/robby/citebase.bib"));
#endif
myDebug() << "CitebaseFetcher::search() - url: " << u.url() << endl;
return u;
}
void CitebaseFetcher::updateEntry(Data::EntryPtr entry_) {
QString arxiv = entry_->field(QString::fromLatin1("arxiv"));
if(!arxiv.isEmpty()) {
search(Fetch::ArxivID, arxiv);
return;
}
myDebug() << "CitebaseFetcher::updateEntry() - insufficient info to search" << endl;
emit signalDone(this); // always need to emit this if not continuing with the search
}
void CitebaseFetcher::updateEntrySynchronous(Data::EntryPtr entry) {
if(!entry) {
return;
}
QString arxiv = entry->field(QString::fromLatin1("arxiv"));
if(arxiv.isEmpty()) {
return;
}
KURL u = searchURL(ArxivID, arxiv);
QString bibtex = FileHandler::readTextFile(u, true);
if(bibtex.isEmpty()) {
return;
}
// assume result is always utf-8
Import::BibtexImporter imp(bibtex);
Data::CollPtr coll = imp.collection();
if(coll && coll->entryCount() > 0) {
myLog() << "CitebaseFetcher::updateEntrySynchronous() - found arxiv result, merging" << endl;
Data::Collection::mergeEntry(entry, coll->entries().front(), false /*overwrite*/);
}
}
Tellico::Fetch::ConfigWidget* CitebaseFetcher::configWidget(QWidget* parent_) const {
return new CitebaseFetcher::ConfigWidget(parent_, this);
}
CitebaseFetcher::ConfigWidget::ConfigWidget(QWidget* parent_, const CitebaseFetcher*)
: Fetch::ConfigWidget(parent_) {
QVBoxLayout* l = new QVBoxLayout(optionsWidget());
l->addWidget(new QLabel(i18n("This source has no options."), optionsWidget()));
l->addStretch();
}
void CitebaseFetcher::ConfigWidget::saveConfig(KConfigGroup&) {
}
QString CitebaseFetcher::ConfigWidget::preferredName() const {
return CitebaseFetcher::defaultName();
}
#include "citebasefetcher.moc"
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