var OrientDB = require('orientjs');

try {
  var server = OrientDB({
    host: 'localhost',
    port: 2424,
    username: 'admin',
    password: 'admin'
  });
} catch(error) {
  console.error('Exception: ' + error);
}

console.log('>> connected');

try {
  server.list()
  .then(function(dbs) {
    console.log(dbs.length);
  });
} catch(error) {
  console.error('Exception: ' + error);
}

try {
  var db = server.use({
   name: 'GratefulDeadConcerts',
   username: 'admin',
   password: 'admin'
  });
} catch(error) {
  console.error('Exception: ' + error);
}

console.log('>> opened: ' + db.name);

try {
  db.class.list()
  .then(function(classes) {
    console.log(classes.length);
  });
} catch(error) {
  console.error('Exception: ' + error);
}

db.close()
.then(function() {
  server.close();
});