spectrum2/backends/twitter/TwitterResponseParser.cpp
2012-08-12 20:11:06 +05:30

241 lines
9.4 KiB
C++

#include "TwitterResponseParser.h"
#include "transport/logging.h"
#include <cctype>
DEFINE_LOGGER(logger, "TwitterResponseParser")
static std::string tolowercase(std::string inp)
{
std::string out = inp;
for(int i=0 ; i<out.size() ; i++) out[i] = tolower(out[i]);
return out;
}
EmbeddedStatus getEmbeddedStatus(const Swift::ParserElement::ref &element, const std::string xmlns)
{
EmbeddedStatus status;
if(element->getName() != TwitterReponseTypes::status) {
LOG4CXX_ERROR(logger, "Not a status element!")
return status;
}
status.setCreationTime( std::string( element->getChild(TwitterReponseTypes::created_at, xmlns)->getText() ) );
status.setID( std::string( element->getChild(TwitterReponseTypes::id, xmlns)->getText() ) );
status.setTweet( std::string( element->getChild(TwitterReponseTypes::text, xmlns)->getText() ) );
status.setTruncated( std::string( element->getChild(TwitterReponseTypes::truncated, xmlns)->getText() )=="true" );
status.setReplyToStatusID( std::string( element->getChild(TwitterReponseTypes::in_reply_to_status_id, xmlns)->getText() ) );
status.setReplyToUserID( std::string( element->getChild(TwitterReponseTypes::in_reply_to_user_id, xmlns)->getText() ) );
status.setReplyToScreenName( std::string( element->getChild(TwitterReponseTypes::in_reply_to_screen_name, xmlns)->getText() ) );
status.setRetweetCount( atoi( element->getChild(TwitterReponseTypes::retweet_count, xmlns)->getText().c_str() ) );
status.setFavorited( std::string( element->getChild(TwitterReponseTypes::favorited, xmlns)->getText() )=="true" );
status.setRetweeted( std::string( element->getChild(TwitterReponseTypes::retweeted, xmlns)->getText() )=="true" );
return status;
}
User getUser(const Swift::ParserElement::ref &element, const std::string xmlns)
{
User user;
if(element->getName() != TwitterReponseTypes::user
&& element->getName() != TwitterReponseTypes::sender
&& element->getName() != TwitterReponseTypes::recipient) {
LOG4CXX_ERROR(logger, "Not a user element!")
return user;
}
user.setUserID( std::string( element->getChild(TwitterReponseTypes::id, xmlns)->getText() ) );
user.setScreenName( tolowercase( std::string( element->getChild(TwitterReponseTypes::screen_name, xmlns)->getText() ) ) );
user.setUserName( std::string( element->getChild(TwitterReponseTypes::name, xmlns)->getText() ) );
user.setProfileImgURL( std::string( element->getChild(TwitterReponseTypes::profile_image_url, xmlns)->getText() ) );
user.setNumberOfTweets( atoi(element->getChild(TwitterReponseTypes::statuses_count, xmlns)->getText().c_str()) );
if(element->getChild(TwitterReponseTypes::status, xmlns))
user.setLastStatus(getEmbeddedStatus(element->getChild(TwitterReponseTypes::status, xmlns), xmlns));
return user;
}
Status getStatus(const Swift::ParserElement::ref &element, const std::string xmlns)
{
Status status;
if(element->getName() != "status") {
LOG4CXX_ERROR(logger, "Not a status element!")
return status;
}
status.setCreationTime( std::string( element->getChild(TwitterReponseTypes::created_at, xmlns)->getText() ) );
status.setID( std::string( element->getChild(TwitterReponseTypes::id, xmlns)->getText() ) );
status.setTweet( std::string( element->getChild(TwitterReponseTypes::text, xmlns)->getText() ) );
status.setTruncated( std::string( element->getChild(TwitterReponseTypes::truncated, xmlns)->getText() )=="true" );
status.setReplyToStatusID( std::string( element->getChild(TwitterReponseTypes::in_reply_to_status_id, xmlns)->getText() ) );
status.setReplyToUserID( std::string( element->getChild(TwitterReponseTypes::in_reply_to_user_id, xmlns)->getText() ) );
status.setReplyToScreenName( std::string( element->getChild(TwitterReponseTypes::in_reply_to_screen_name, xmlns)->getText() ) );
status.setUserData( getUser(element->getChild(TwitterReponseTypes::user, xmlns), xmlns) );
status.setRetweetCount( atoi( element->getChild(TwitterReponseTypes::retweet_count, xmlns)->getText().c_str() ) );
status.setFavorited( std::string( element->getChild(TwitterReponseTypes::favorited, xmlns)->getText() )=="true" );
status.setRetweeted( std::string( element->getChild(TwitterReponseTypes::retweeted, xmlns)->getText() )=="true" );
return status;
}
DirectMessage getDirectMessage(const Swift::ParserElement::ref &element, const std::string xmlns)
{
DirectMessage DM;
if(element->getName() != TwitterReponseTypes::direct_message) {
LOG4CXX_ERROR(logger, "Not a direct_message element!")
return DM;
}
DM.setCreationTime( std::string( element->getChild(TwitterReponseTypes::created_at, xmlns)->getText() ) );
DM.setID( std::string( element->getChild(TwitterReponseTypes::id, xmlns)->getText() ) );
DM.setMessage( std::string( element->getChild(TwitterReponseTypes::text, xmlns)->getText() ) );
DM.setSenderID( std::string( element->getChild(TwitterReponseTypes::sender_id, xmlns)->getText() ) );
DM.setRecipientID( std::string( element->getChild(TwitterReponseTypes::recipient_id, xmlns)->getText() ) );
DM.setSenderScreenName( std::string( element->getChild(TwitterReponseTypes::sender_screen_name, xmlns)->getText() ) );
DM.setRecipientScreenName( std::string( element->getChild(TwitterReponseTypes::recipient_screen_name, xmlns)->getText() ) );
DM.setSenderData( getUser(element->getChild(TwitterReponseTypes::sender, xmlns), xmlns) );
DM.setRecipientData( getUser(element->getChild(TwitterReponseTypes::recipient, xmlns), xmlns) );
return DM;
}
std::vector<Status> getTimeline(std::string &xml)
{
std::vector<Status> statuses;
Swift::ParserElement::ref rootElement = Swift::StringTreeParser::parse(xml);
if(rootElement == NULL) {
LOG4CXX_ERROR(logger, "Error while parsing XML")
return statuses;
}
if(rootElement->getName() != "statuses") {
LOG4CXX_ERROR(logger, "XML doesn't correspond to timeline")
return statuses;
}
const std::string xmlns = rootElement->getNamespace();
const std::vector<Swift::ParserElement::ref> children = rootElement->getChildren(TwitterReponseTypes::status, xmlns);
for(int i = 0; i < children.size() ; i++) {
const Swift::ParserElement::ref status = children[i];
statuses.push_back(getStatus(status, xmlns));
}
return statuses;
}
std::vector<DirectMessage> getDirectMessages(std::string &xml)
{
std::vector<DirectMessage> DMs;
Swift::ParserElement::ref rootElement = Swift::StringTreeParser::parse(xml);
if(rootElement == NULL) {
LOG4CXX_ERROR(logger, "Error while parsing XML")
return DMs;
}
if(rootElement->getName() != TwitterReponseTypes::directmessages) {
LOG4CXX_ERROR(logger, "XML doesn't correspond to direct-messages")
return DMs;
}
const std::string xmlns = rootElement->getNamespace();
const std::vector<Swift::ParserElement::ref> children = rootElement->getChildren(TwitterReponseTypes::direct_message, xmlns);
for(int i = 0; i < children.size() ; i++) {
const Swift::ParserElement::ref dm = children[i];
DMs.push_back(getDirectMessage(dm, xmlns));
}
return DMs;
}
std::vector<User> getUsers(std::string &xml)
{
std::vector<User> users;
Swift::ParserElement::ref rootElement = Swift::StringTreeParser::parse(xml);
if(rootElement == NULL) {
LOG4CXX_ERROR(logger, "Error while parsing XML")
return users;
}
if(rootElement->getName() != TwitterReponseTypes::users) {
LOG4CXX_ERROR(logger, "XML doesn't correspond to user list")
return users;
}
const std::string xmlns = rootElement->getNamespace();
const std::vector<Swift::ParserElement::ref> children = rootElement->getChildren(TwitterReponseTypes::user, xmlns);
for(int i = 0 ; i < children.size() ; i++) {
const Swift::ParserElement::ref user = children[i];
users.push_back(getUser(user, xmlns));
}
return users;
}
User getUser(std::string &xml)
{
User user;
Swift::ParserElement::ref rootElement = Swift::StringTreeParser::parse(xml);
if(rootElement == NULL) {
LOG4CXX_ERROR(logger, "Error while parsing XML")
return user;
}
if(rootElement->getName() != TwitterReponseTypes::user) {
LOG4CXX_ERROR(logger, "XML doesn't correspond to user object")
return user;
}
const std::string xmlns = rootElement->getNamespace();
return user = getUser(rootElement, xmlns);
}
std::vector<std::string> getIDs(std::string &xml)
{
std::vector<std::string> IDs;
Swift::ParserElement::ref rootElement = Swift::StringTreeParser::parse(xml);
if(rootElement == NULL) {
LOG4CXX_ERROR(logger, "Error while parsing XML")
return IDs;
}
if(rootElement->getName() != TwitterReponseTypes::id_list) {
LOG4CXX_ERROR(logger, "XML doesn't correspond to id_list");
return IDs;
}
const std::string xmlns = rootElement->getNamespace();
const std::vector<Swift::ParserElement::ref> ids = rootElement->getChild(TwitterReponseTypes::ids, xmlns)->getChildren(TwitterReponseTypes::id, xmlns);
for(int i=0 ; i<ids.size() ; i++) {
IDs.push_back(std::string( ids[i]->getText() ));
}
return IDs;
}
Error getErrorMessage(std::string &xml)
{
std::string error = "";
std::string code = "";
Error resp;
Swift::ParserElement::ref rootElement = Swift::StringTreeParser::parse(xml);
if(rootElement == NULL) {
LOG4CXX_ERROR(logger, "Error while parsing XML");
return resp;
}
const std::string xmlns = rootElement->getNamespace();
const Swift::ParserElement::ref errorElement = rootElement->getChild(TwitterReponseTypes::error, xmlns);
Swift::AttributeMap attributes = errorElement->getAttributes();
if(errorElement != NULL) {
error = errorElement->getText();
code = (errorElement->getAttributes()).getAttribute("code");
}
resp.setCode(code);
resp.setMessage(error);
return resp;
}