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12 Feb 2007

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MovieList Class Reference

This class is used read movies into memory. More...

#include <MovieList.hpp>

List of all members.

Public Member Functions
	MovieList (Profile *profile=NULL)
	default constructor
	~MovieList ()
	default destructor
void	addMovie (Movie *m)
	Add a movie to the list.
string	getDescription ()
	Get the description of the movie-list.
string	getHTMLRepresentation (char *imgPath, CGIParser *cgiparser=NULL, bool fakeRtspServer=false)
	Get an HTML-representation of the movie-list.
void	readMoviesFromFile (const char *filename)
	Read movies from specified xml-file.
Static Public Member Functions
Movie *	getMovieById (string movieId)

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Detailed Description

This class is used read movies into memory.

Author:

Klaus Schoeffmann

Definition at line 71 of file MovieList.hpp.

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Member Function Documentation

string MovieList::getHTMLRepresentation (  char *  imgPath, CGIParser *  cgiparser = NULL, bool  fakeRtspServer = false )

Get an HTML-representation of the movie-list. Parameters: imgPath  specifies the path where referenced images are stored Definition at line 97 of file MovieList.cpp. References CGIParser::getFieldValue(), Profile::getHeight(), Movie::getHTMLRepresentation(), Profile::getProfileId(), Profile::getWidth(), and semifunc::newStrCpy(). { string data; uint userId = 0; uint linktype = 0; char *sphost = NULL; char *spport = NULL; if (cgiparser != NULL) { userId = atoi(cgiparser->getFieldValue("userid").c_str()); linktype = atoi(cgiparser->getFieldValue("linktype").c_str()); sphost = semifunc::newStrCpy((char*)cgiparser->getFieldValue("sphost").c_str()); spport = semifunc::newStrCpy((char*)cgiparser->getFieldValue("spport").c_str()); } //create html file of all movies vector<Movie*>::const_iterator iter = list.begin(); for (;iter != list.end(); iter++) { Movie *movie = *iter; if (cgiparser != NULL) { data += movie->getHTMLRepresentation(imgPath, userId, profile->getProfileId(), linktype, profile->getWidth(), profile->getHeight(), fakeRtspServer, sphost, spport); } else { data += movie->getHTMLRepresentation(imgPath, 0, 0, 1, 0, 0, fakeRtspServer); } } return data; }

Movie * MovieList::getMovieById (  string  movieId  )  [static]

Returns: reference to the movie in the list, which has the specified id Definition at line 77 of file MovieList.cpp. References Movie::getId(). Referenced by SessionList::writeHTMLRepresentation(). { vector<Movie*>::const_iterator iter = list.begin(); for (;iter != list.end(); iter++) { Movie *movie = *iter; if (movieId == movie->getId()) return movie; } //not found return NULL; }

void MovieList::readMoviesFromFile (  const char *  filename  )

Read movies from specified xml-file. This function is a very small implementation of a MPEG21-DigitalItem-Parser. The read movies will be stored in the vector 'list'. Definition at line 134 of file MovieList.cpp. References Movie::getId(), and Movie::setUrl(). { ifstream fp (filename, ios::in); if (! fp.is_open()) { cerr << "Error opening file '" << filename << "'"; exit (1); } //read file into vector, tag by tag vector<string> vec; char buffer[4095]; uint pos = 0; char c; while(true) { if (fp.get(c)) { //look if a tag starts if (c == '<' && pos != 0) { //push back old buffer buffer[pos] = '\0'; pos = 0; vec.push_back(string(buffer)); buffer[pos++] = c; } else if (c == '>') { buffer[pos++] = c; buffer[pos] = '\0'; pos = 0; vec.push_back(string(buffer)); } else { buffer[pos++] = c; } } else { break; } } fp.close(); //parse vector string name, description, img, url; string lastId, lastCondId; Movie *movie; uint i, statement=0; for (i=0; i<vec.size(); i++) { //on selection-tags, store ID if (vec[i].find("<Selection") != string::npos) { unsigned int loc1 = vec[i].find("select_id=\"") + 11; unsigned int loc2 = vec[i].find("\"", loc1); lastId = vec[i].substr(loc1, loc2-loc1); } else if (vec[i].find("<Statement") != string::npos) { //read whole content until end of statement-tag string stmt = readStatement(i, vec); //cout << "\nread statement: " << stmt; //assumption: 1st statement = name of movie, 2nd = desc, and so on... if (statement++ == 0) { //cout << "\nassigning to desc = " << stmt; this->desc.assign(stmt); } else if ((statement-1) % 2 == 1) { //cout << "\nassigning to name = " << stmt; //name of movie name.assign(stmt); } else if ((statement-1) % 2 == 0) { //cout << "\nassigning to description = " << stmt; //description of movie description.assign(stmt); } } else if (vec[i].find("<Resource mimeType=\"image/jpeg\"") != string::npos) { //image of movie unsigned int loc1 = vec[i].find("ref=\"") + 5; unsigned int loc2 = vec[i].find("\"", loc1); img = vec[i].substr(loc1, loc2-loc1); //create movie and store in list movie = new Movie(name, lastId, description, img, "url"); list.push_back(movie); } //on conditions: store id for later use on resource-tag else if (vec[i].find("<Condition") != string::npos) { unsigned int loc1 = vec[i].find("require=\"") + 9; unsigned int loc2 = vec[i].find("\"", loc1); lastCondId = vec[i].substr(loc1, loc2-loc1); } //on resource: add this url to corresponding movie else if (vec[i].find("<Resource") != string::npos) { if (vec[i].find("mimeType=\"video/mpeg\"") != string::npos) { unsigned int loc1 = vec[i].find("ref=\"") + 5; unsigned int loc2 = vec[i].find("\"", loc1); url = vec[i].substr(loc1, loc2-loc1); uint j; for (j=0; j<list.size(); j++) { Movie *m = list[j]; if (m->getId().compare(lastCondId) == 0) { m->setUrl(url); } } } } } }

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The documentation for this class was generated from the following files:

• MovieList.hpp
• MovieList.cpp

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