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\begin{it}
	\def\mdtitle{Alternanza scuola-lavoro estesa presso \textit{Agomir S.p.A.}}
	\def\mdsubtitle{Sviluppo di applicazioni multipiattaforma per dispositivi mobili}
\end{it}
\begin{en}
	\def\mdtitle{Extended school internship at \textit{Agomir S.p.A.}}
	\def\mdsubtitle{Multiplatform mobile application development}
\end{en}
\def\mdauthor{Claudio Maggioni}
\def\mddate{\today}
\def\mdrevision{7}

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	\centering
	\includesvg[width=0.3\textwidth]{images/logo}\par\vspace{1.5cm}
	{\scshape\LARGE Istituto di Istruzione Superiore \mbox{``A. Badoni''}\par}
	\vspace{1cm}
	{\scshape\Large Tesi di maturità\par}
	\vspace{1.5cm}
	{\huge\bfseries\mdtitle\par}
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	{\Large\bfseries\mdsubtitle\par}
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	\begin{it}
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		{\large\textsc{Traduzione in italiano}\par}
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	{\large\color{red}\textsc{Revisione \mdrevision}\par}
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\begin{it}
	\section{Informazioni generali sul lavoro svolto}

	A partire dal giorno 19/10/2017, collaboro con l'azienda \textit{Agomir
    S.p.A.}\cite{agomir:website} (produttrice di software, sistemi e servizi per
	piccole e medie imprese) svolgendo un'attività di alternanza scuola-lavoro
  estesa con cadenza settimanale (giovedì e venerdì pomeriggio). Mi occupo di
  sviluppo software di tipo gestionale, nello specifico di applicazioni per
  smartphone multipiattaforma (cioè compatibili sia con Android che con iOS)
  utilizzando strumenti come \textit{Ionic Framework}\cite{ionic:website} e
  \textit{Apache Cordova}\cite{cordova:website}.

	Tale approccio al mondo \textit{mobile} facilita lo sviluppo, perché al
  posto di usare API e meccanismi legati alla piattaforma \`e possibile
  utilizzare tecnologie note e standard come HTML e Javascript. Naturalmente
  tali applicazioni richiedono pi\`u risorse e tendono ad essere meno fluide,
  ma questo aspetto è meno rilevante in contesti gestionali come quelli
  affrontati da Agomir, non legati ad esempio al mondo dei videogiochi o
  all'elaborazione real-time.
\end{it}
\begin{en}
	\section{General information about the work done}

	Since 19 october 2017, I work with \textit{Agomir S.p.A.}\cite{agomir:website}
  (vendor and producer of software, networking solutions and services for small
  and mid-size
  industries) doing an extended school internship on a weekly basis (thursdays
  and fridays, in the afternoon). I am involved in developing accounting
  software, writing multiplatform smartphone applications (that work
  with both Android and iOS) to be precise. In order to do this, I am using tools
  such as \textit{Ionic Framework}\cite{ionic:website} and \textit{Apache
    Cordova}\cite{cordova:website}.

  This type of approach to the mobile world makes development more easy because
  instead of using APIs and platform-dependent code it is possible to use
  well-known and standardized technologies such as HTML and Javascript.
  Naturally, these apps require more system resources and they generally are
  less responsive than their native counterparts. However, this aspect is less
  relevant in the world of accounting software that Agomir embraces, far from the
  optimisation hungry sectors of videogames or real time applications. 
\end{en}

\begin{it}
	\section{Gestione dei progetti}

	Non ho diretto controllo manageriale su ciò che sviluppo in azienda,
  in quanto ho un ruolo simile a quello di un dipendente. L'incarico di gestire
  l'andamento dei progetti spetta a Mario Goretti, A.D. dell'azienda e capo
  del settore di sviluppo software gestionale (\textsc{SWG}), e ai suoi
  collaboratori. 
	
	In generale sviluppo i progetti da solo. Collaboro con il collega Daniele
  Crippa per l'interfacciamento con i software aziendali esistenti e per
  l'organizzazione di nuovi progetti, nonché per consigli vari.
	
	Nonostante non abbia controllo totale \`e comunque mia responsabilità fare
  stime orarie sul lavoro da svolgere nonché definire passi e \textit{milestone}
  per i vari progetti.
	
	Per aumentare la forza lavoro per lo sviluppo di applicazioni \textit{mobile}
  ho coordinato momenti di formazione ad alcuni dipendenti nei quali ho mostrato
  il principale funzionamento delle tecnologie che uso.
\end{it}
\begin{en}
	\section{Projects management}
	
	I do not directly manage the projects on which I work, because my role is more
  similar to that of an employee. The task of managing the status of the various
  projects is given to Mario Goretti, CEO of the company and head of the
  accounting software department (codenamed SWG), and to his collaborators.

  In general, I work on the tasks assigned to me alone. I sometimes work with my
  colleague Daniele Crippa in order to interface my projects' code with the
  existing products from the company, to plan new projects, and for suggestions
  in general.

  In spite of the lack of control I have in regard to the projects I work on, I
  am still responsible for defining development milestones and making
  time estimates for the completion of these.

  In order to increase the work force assigned to the development of mobile
  apps, I have managed training sessions for some employees in order to show
  them how the tools that I use work.
\end{en}

\begin{it}
	\section{Il progetto principale: \textit{InteGRa Mobile}}
	
	Questa applicazione, una volta completata, dovrebbe permettere ad utenti in
  mobilità di interfacciarsi con alcune funzioni del prodotto ERP di punta di
  Agomir: il gestionale \textit{InteGRa}\footnote{Sito internet di InteGRa ERP:
    \url{https://integra.agomir.com/}}. Nel dettaglio, sarà possibile accedere
  alle seguenti sezioni:
	
	\begin{description}
	  \item[Ordini cliente] per registrare ordini di prodotti a clienti;
	  \item[Soggetti] per consultare informazioni anagrafiche di clienti e fornitori;
	  \item[Agenda] per consultare e aggiungere eventi nel calendario presente
      nell'ERP, il quale si pu\`o integrare con \textit{Outlook};
	  \item[Magazzini] gestire e inventariare scorte in magazzino.
	\end{description}
	
	In aggiunta, sarà possibile anche registrare le ore per interventi in
  trasferta, funzione gi\`a implementata nell'applicazione
  \textit{InteGRa.Service}, sviluppata nei periodi di alternanza precedenti.
  Tale lavoro non \`e direttamente implementabile in \textit{InteGRa Mobile} a
  causa di differenze consistenti nelle architetture dei due prodotti.
	
	Inoltre, l'applicazione sarà in grado di funzionare in modo limitato anche
  senza connessione diretta ad \textit{InteGRa}, permettendo la sincronizzazione
  dei dati modificati con il gestionale in un momento futuro.
\end{it}
\begin{en}
	\section{The main project: \textit{InteGRa Mobile}}
	
	This app, once completed, will enable moving users to interact with some
  sections of the main ERP product from Agomir: the accounting software
  \textit{InteGRa}\footnote{Website for InteGRa ERP (in italian):
    \url{https://integra.agomir.com/}}. In detail, users will be able to work
  within the following areas:

  \begin{description}
	  \item[Customers' orders] for registering the products customers may order;
	  \item[Customers and suppliers] for looking up record data of customers and
      suppliers;
	  \item[Calendar] for viewing and editing events on the ERP calendar, syncable
      with \textit{Outlook};
	  \item[Warehouses] for managing warehouses and inventories.
	\end{description}
	
  In addition to what specified above, users will be able to register working
  hours for business trips. This feature is already implemented in
  \textit{InteGRa.Service}, an app developed in a previous school internship
  period. The two apps can not be merged immediately due to relevant
  differencies in their respective architectures.

  Finally, the app will be able to work (with limited functionalities) without
  a network link with \textit{InteGRa}, offering data syncronization when a
  connection will be avaliable.
\end{en}

\begin{it}
	\subsection{Architettura software}
\end{it}
\begin{en}
	\subsection{Software architecture}
\end{en}

\begin{figure}[H]
	\centering
	\resizebox{\ifdim\width>\linewidth\linewidth\else\width\fi}{!}{\input{diagrams/itgmobile}}
	\begin{it}
		\caption{L'architettura di \textit{InteGRa Mobile} raffigurata con un diagramma}
	\end{it}
	\begin{en}
		\caption{The architecture of \textit{InteGRa Mobile} as a diagram}
	\end{en}
	\label{fig:itgmobliearch}
\end{figure}

\begin{it}
	Nella figura \ref{fig:itgmobliearch} si può notare come l'insieme dei
  componenti software all'interno del progetto siano organizzati e comunichino
  tra loro. Tale architettura è stata realizzata da me, basandosi
  sull'esperienza acquisita con il progetto \textit{InteGRa.Service}. Segue
  una spiegazione sintetica (organizzata in punti) del diagramma. 

  \begin{itemize}

  \item L'applicazione non comunica direttamente con il gestionale, ma tramite
    una serie di chiamate \textsc{REST}\cite{wiki:rest} ad un endpoint lato
    server (chiamato \textit{InteGRaREST}) che svolge il ruolo di intermediario;

  \item Tale componente è una Java WebApplication che utilizza una libreria
    sviluppata internamente (chiamata \textit{restaurant}) per offrire le rotte
    accessibili al client e per interagire con il database di
    \textit{InteGRa}, una normale istanza di \textit{PostgreSQL};

  \item Nella fase di comunicazione tramite HTTP, i dati in input vengono
    trasmessi come \texttt{application/x-www-form-urlencoded} mentre
	  i dati in output vengono trasmessi come \textsc{JSON}\cite{wiki:json}, e le
    sessioni vengono identificate con un token presente come parametro nella
    query string di ciascuna richiesta;

  \item \textit{InteGRaREST} effettua autonomamente query \textsc{SQL} al
    database per recuperare velocemente informazioni aventi
    struttura dati e logiche di memorizzazione semplici;

  \item Nel caso sia necessario interagire con record complessi,
    \textit{InteGRaREST} comunica con \textit{InteGRa} attraverso
    chiamate \textsc{SOAP}\cite{wiki:soap};

  \item \textit{InteGRa Mobile}, l'applicazione per dispositivi mobili, comunica
   con \textit{InteGRaREST} grazie a una versione client di \textit{restaurant},
   in grado di gestire (in modo limitato) operazioni eseguite in mancanza di
   connessione alla rete. 

 \end{itemize} 
\end{it}
\begin{en}
	In the picture \ref{fig:itgmobliearch} is shown how the software components
  in the app interact with each other. This architecture was entirely realized
  by me, on the basis offered by the project \textit{InteGRa.Service}. Further
  information is given in the following list.

  \begin{itemize}

  \item The smartphone app does not directly communicate with the accounting
    software, but instead it interacts using \textsc{REST} calls\cite{wiki:rest}
    with a middleware server application, named \textit{InteGRaREST};

  \item The last component mentioned is a Java WebApplication, 
    implemented by using an internally developed library named \textit{restaurant},
    that contains the boilerplate needed to generate the \textsc{REST} routes
    and to access the \textit{InteGRa} database, a normal \textit{PostgreSQL}
    instance;

  \item When information is exchanged by HTTP, input data is encoded
    as the MIME type \texttt{application/x-www-form-urlencoded}, while output data
	  is encoded as \textsc{JSON}\cite{wiki:json}. Sessions are identified by
    a token that must be included in the query string of each call;

  \item \textit{InteGRaREST} queries the database autonomously through
    \textsc{SQL} in order to fetch and store data structures with simple
    or absent logical constraints;

  \item When interaction with data arranged in complex structures is needed,
    \textit{InteGRaREST} communicates with \textit{InteGRa} through
    \textsc{SOAP} calls\cite{wiki:soap};

  \item \textit{InteGRa Mobile}, the smartphone app, interacts with
    \textit{InteGRaREST} thanks to a client version of \textit{restaurant},
    which is able to handle offline operations. 

 \end{itemize} 
\end{en}

\begin{it}
  \subsubsection{\textit{restaurant} -- lato server}
  La libreria \textit{restaurant}\footnote{Il nome \textit{restaurant} è un
    gioco di parole sull'acronimo REST.} viene importata
  come una normale dipendenza Maven\cite{maven:website}. Essa dipende da:
  \begin{description}
    \item[Hibernate ORM\cite{hibernate:website}] un famoso Object/Relation
      Mapper\cite{wiki:orm} per Java, utile ad interrogare il database
      \textit{PostgreSQL} con facilità;
    \item[GSON\cite{gson:website}] una libreria di Google per serializzare
      e deserializzare oggetti Java in JSON;
    \item[Jersey\cite{jersey:website}] un'implementazione dell'API JAX-RS
      per realizzare gli endpoint REST. Ciò avviene senza servlet ma tramite
      semplici metodi contenuti in classi senza ``padre'' dette \textit{controller},
      opportunamente decorati con le annotazioni nel package
      \texttt{javax.ws.rs}.
  \end{description}

  Le operazioni richieste per interrogare la base di dati sono ulteriormente
  semplificate dal codice contenuto in \textit{restaurant} su due livelli:
  \begin{itemize}
    \item È possibile eseguire normali operazioni di CRUD\cite{wiki:crud}
      nonchè costruire manualmente query tramite i metodi statici della classe
      \textit{CRUDUtils}, che lavorano in input e in output con istanze delle
      classi ``entità'' registrate nell'ORM;
    \item Inoltre, è possibile creare nuovi \textit{controller} con facilità
      ereditando dalle classi astratte \textit{JsonProducer} (per
      implementare funzioni al di fuori di CRUD),
      \textit{ReadableRESTController} (per implementare operazioni in sola
      lettura, equivalenti alla ``Read'' in CRUD) e \textit{CRUDRESTController}
      (per implementare CRUD completi), che offono
      metodi in grado di generare autonomamente risposte in JSON, sia in caso
      di successo che in errore.
  \end{itemize}

  Seguono le interfacce delle classi \textit{CRUDUtils}, \textit{JsonProducer},
  \textit{ReadableRESTController} e \textit{CRUDRESTController}, complete di
  Javadoc (in inglese, come presente nei sorgenti originali).
\end{it}
\begin{en}
  \subsubsection{\textit{restaurant} -- server side}
  The \textit{restaurant}\footnote{\textit{restaurant} is a pun on the word
    \textsc{REST}} library is imported
  as a normal Maven\cite{maven:website} dependency. It requires the
  following dependencies:
  \begin{description}
    \item[Hibernate ORM\cite{hibernate:website}] a famous Java Object/Relation
      Mapper\cite{wiki:orm}, used to query the \textit{PostgreSQL} database
      with ease;
    \item[GSON\cite{gson:website}] a library from Google for serializing and
      deserializing Java object in JSON;
    \item[Jersey\cite{jersey:website}] an implementation of the API JAX-RS
      for creating REST endpoints, not through servlets but using
      simple methods contained in plain classes, called \textit{controllers},
      decorated with the annotations contained in the package \texttt{javax.ws.rs}.
  \end{description}

  The boilerplate needed to query the database is further simplified by the
  code in \textit{restaurant} on two levels:
  \begin{itemize}
    \item It is possible to perform common CRUD operations\cite{wiki:crud}
      and to build and execute custom queries by the static methods accessible
      in the \textit{CRUDUtils} class. Those procedures work on the ``entity''
      classes registered in the ORM;
    \item In addition to what mentioned above, \textit{controller} can be
      implemented with ease inheriting the abstract classes \textit{JsonProducer} (for
      non-CRUD operations), \textit{ReadableRESTController} (for read-only CRUD
      operations) and \textit{CRUDRESTController} (for complete CRUDs).
      These components offer methods able to automatically generate both success
      and error JSON responses. 
  \end{itemize}

  Below there are the interface listings for the classes \textit{CRUDUtils}, \textit{JsonProducer},
  \textit{ReadableRESTController} and \textit{CRUDRESTController}, with the
  respective Javadoc comments (in english, as in the original sources).
\end{en}

\begin{it}
  \def\jsonprdjava-title{Interfaccia della classe \textit{JsonProducer}}
\end{it}
\begin{en}
  \def\jsonprdjava-title{Class interface of \textit{JsonProducer}}
\end{en}
\begin{lstlisting}[caption=\jsonprdjava-title, label={lst:jsonprd-java}, language=Java]
/**
 * Something that generates JSON responses
 */
public abstract class JsonProducer {
  
    protected static final Logger log = %*\ldots*);
  
    protected static final Gson GSON = %*\ldots*);
  
    /**
     * Generates a json response with status 200 containing an object
     *
     * @param o the contents of the response
     * @return JSON response
     */
    protected Response jsonResponse(Object o) { %*\ldots*) }
    
    /**
     * Generates a json response with custom status containing an object
     *
     * @param o      the contents of the response
     * @param status status of the response
     * @return JSON response
     */
    protected Response jsonResponse(Object o, int status) { %*\ldots*) }
  
    /**
     * Generates a json response containing a library standard error
     *
     * @param error the error
     * @return JSON error response
     */
    protected Response jsonErrResponse(Error error) { %*\ldots*) }
  
    /**
     * Generates a json response containing a custom error
     *
     * @param error the error
     * @return JSON error response
     */
    protected Response jsonErrResponse(ErrorDetails error) { %*\ldots*) }
    
    /**
     * Generates an error response if the parameter given as argument 
     * is null or an empty string
     *
     * @param s        parameter
     * @param propName parameter name, used in the error description
     * @return JSON error response or null if the parameter is valid
     */
    protected Response require(Object s, String propName) { %*\ldots*) }
}
\end{lstlisting}
\begin{it}
  Per una migliore lettura del listato \ref{lst:jsonprd-java}, si precisa che la
  classe \textit{Error} è una enumerazione Java contenente messaggi di errore
  standard. La classe \textit{ErrorDetails}, invece, permette al codice esterno
  di realizzare messaggi di errore personalizzati. Inoltre, l'oggetto statico
  \texttt{GSON} di classe \textit{Gson} è il serializzatore a JSON offerto dalla
  libreria omonima.
\end{it}
\begin{en}
  For a better reading of the listing \ref{lst:jsonprd-java}, it is necessary to
  consider that the \textit{Error} class is a Java enumeration containing error
  messages thrown by the library. In addition, the \textit{ErrorDetails} class
  enables external code to create custom error messages. Finally, the static
  object \texttt{GSON} of class \textit{Gson} is the JSON serializer offered by
  the library of the same name.
\end{en}

\begin{it}
  \def\rdbrestjava-title{Interfaccia della classe \textit{ReadableRESTController}}
\end{it}
\begin{en}
  \def\rdbrestjava-title{Class interface of \textit{ReadableRESTController}}
\end{en}
\begin{lstlisting}[caption=\rdbrestjava-title, label={lst:rdbrest-java}, language=Java]
/**
 * A REST Controller only readable
 * @param <T> The readable entity class
 */
public abstract class ReadableRESTController<T extends Readable,
    U extends PrimaryKey<T>> extends JsonProducer {
	
    /**
     * Interface used to carry a function capable of filtering a list 
     * of entities after it has been retrieved from the database
     *
     * @param <T> The readable entity class
     */
    public interface ListFilter<T extends Readable> {
        List<T> filter(List<T> toFilter);
    }
    
    /**
     * Returns the class of the readable entity. Used as parameter for
     * CRUDUtils
     *
     * @return the class of the readable entity
     */
    protected abstract Class<T> getBeanClass();

    protected final Logger log = %*\ldots*);
	
    /**
     * Returns a response with a standard unfiltered, unpaginated list
     * of entities
     *
     * @return JSON response, success or not
     */
    protected Response list() { %*\ldots*) }
    
    /**
     * Returns a list of entities, customizable in many ways
     *
     * @param filter map of names of fields and their values which must
     *               be equal in the fetched entities (null accepted if 
     *               not used)
     * @param otherFilter list of additional filters (Hibernate Criterion
     *                    objects, null accepted if not used)
     * @param order order of the entities (Hibernate Order, null accepted
     *              if not used)
     * @param afterDb implementation of interface containing a function
     *                capable of filtering a list of entities (null accepted
     *                if not used)
     * @param page the page number to fetch (starts at 1, null accepted
     *             if not used)
     * @return JSON response, success or not
     */
    protected Response list(Map<String, Object> filter,
        List<Criterion> otherFilter, Order order,
        ListFilter<T> afterDb, Integer page) { %*\ldots*) }

    /**
     * Returns a response with a single entity given its primary key
     *
     * @param filterOne map of names of columns and their values containing
     *                  the primary key
     * @return JSON response, success or not
     */
    protected Response get(Map<String, Object> filterOne) { %*\ldots*) }

    /**
     * Returns a response with a single entity given its primary key
     *
     * @param pk the primary key
     * @return JSON response, success or not
     */
    protected Response get(PrimaryKey<T> pk) { %*\ldots*) }

    /**
     * Returns the existing primary keys given a set of primary keys sent
     * as a JSON array
     *
     * @param requestBody the request body with JSON data
     * @return JSON array of the existing primary keys or error response
     */
    protected Response existing(InputStream requestBody) { %*\ldots*) }	
}
\end{lstlisting}
\begin{it}
  Anche il listato \ref{lst:rdbrest-java} necessita di una breve spiegazione.
  La classe astratta \textit{Readable}, vincolo sul primo parametro generico della classe,
  è il padre di ogni classe ``entità'', mentre \textit{PrimaryKey<T>} è il padre
  della classe contenente la chiave primaria di \textit{T}. Un'istanza della
  classe figlia di \textit{PrimaryKey<T>} è contenuta come attributo nella
  classe ``entità'' \textit{T}, che a sua volta estende \textit{Readable}. 
\end{it}
\begin{en}
  Even the listing \ref{lst:rdbrest-java} needs a brief explaination. The
  abstract class \textit{Readable}, used as constraint for the class first generic
  parameter, is the father of each ``entity'' class, while
  \textit{PrimaryKey<T>} is the father of the class that contains the primary
  key of \textit{T}. An instance the \textit{PrimaryKey<T>} child is embedded as
  an attribute in the ``entity'' class \textit{T}, which itself extends \textit{Readable}.
\end{en}

\begin{it}
  \def\crudrestjava-title{Interfaccia della classe \textit{CRUDRESTController}}
\end{it}
\begin{en}
  \def\crudrestjava-title{Class interface of \textit{CRUDRESTController}}
\end{en}
\begin{lstlisting}[caption=\crudrestjava-title, label={crudrest-java}, language=Java]
/**
 * A REST Controller readable and writable
 * @param <T> The readable and writable entity class
 */
public abstract class CRUDRESTController<T extends CRUDable, U extends 
    PrimaryKey<T>> extends ReadableRESTController<T, U> {

    /**
     * A standard edit route body. Edits an entity and returns a JSON 
     * response, both on success and on error.
     *
     * @param filterOne map containing columns and relative values of the
     *                  primary key of the entity to edit
     * @param form request data containing the fields to edit
     * @return JSON response, positive or negative
     */
    protected Response edit(Map<String, Object> filterOne,
                            MultivaluedMap<String, String> form) { %*\ldots*) }

    /**
     * A standard edit route body. Edits an entity and returns a JSON
     * response, both on success and on error.
     *
     * @param pKey the entity primary key
     * @param form request data containing the fields to edit
     * @return JSON response, positive or negative
     */
    protected Response edit(PrimaryKey<T> pKey, 
        MultivaluedMap<String, String> form) { %*\ldots*) }

    /**
     * A standard delete route body. Deletes an entity and returns a JSON 
     * response, both on success and on error.
     *
     * @param pKey the entity primary key
     * @return JSON response, positive or negative
     */
    protected Response delete(PrimaryKey<T> pKey) { %*\ldots*) }

    /**
     * A standard delete route body. Deletes an entity and returns a JSON
     * response, both on success and on error.
     *
     * @param filterOne map containing columns and relative values of the
     *                  primary key of the entity to delete
     * @return JSON response, positive or negative
     */
    protected Response delete(Map<String, Object> filterOne) { %*\ldots*) }

    /**
     * A standard create route body. Creates an entity and returns a JSON
     * response, both on success and on error.
     *
     * @param form request data containing the entity column values
     * @return JSON response, positive or negative
     */
    protected Response create(MultivaluedMap<String, String> form) { %*\ldots*) }

    %*\ldots*)
}
\end{lstlisting}

\begin{it}
  Si precisa che la classe \textit{CRUDable} è un estensione della classe
  \textit{Readable} che contiene metodi per l'inizializzazione dell'oggetto
  sulla base di dati in input, contenuti in \textit{MultivaluedMap<String,
    String>}. Di conseguenza, le classi ``entità'' che estendono \textit{CRUDable}
  possono essere usate per operazioni di scrittura, come quelle implementate
  da \textit{CRUDRESTController}.
\end{it}
\begin{en}
  The \textit{CRUDable} class extends \textit{Readable} and offers
  some methods useful for object initialization based on input data given
  as \textit{MultivaluedMap<String,String>}. Therefore, the ``entity''
  classes that extend \textit{CRUDable} can be used for read-write operations,
  e.g. the ones implemented in \textit{CRUDRESTController}.
\end{en}

\begin{it}
  \def\crudutilsjava-title{Interfaccia della classe \textit{CRUDUtils}}
\end{it}
\begin{en}
  \def\crudutilsjava-title{Class interface of \textit{CRUDUtils}}
\end{en}
\begin{lstlisting}[caption=\crudutilsjava-title, label={lst:crudutils-java}, language=Java]
/**
 * Database access class. Access statically
 */
public abstract class CRUDUtils {

    /**
     * Interface containing a function able to generate an Hibernate Query
     * object and execute it by getting a generic response given the 
     * session
     *
     * @param <T> the response type
     */
    public interface HBMInteraction<T> {
        T execute(Session s);
    }

    /**
     * Interface containing a function able to generate an Hibernate Query
     * object and execute it by getting a list of rows given the session
     */
    public interface HBMQuery extends HBMInteraction<List<Object[]>> {
        List<Object[]> execute(Session s);
    }

    /**
     * Number of items on a single page. Used when pagination is requested
     */
    public static final int ITEMSPERPAGE = %*\ldots*);

    %*\ldots*) 

    private static final Logger log = %*\ldots*);

    /**
     * Save a writable entity on the database
     *
     * @param o the entity to save
     * @param <T> type of the entity. Must be readable and writable
     * @return boolean true = success, false = error
     */
    public static <T extends CRUDable> boolean persist(final T o) { %*\ldots*) }

    /**
     * Delete a writable entity on the database
     *
     * @param toDelete the entity to delete
     * @param <T> type of the entity. Must be readable and writable
     * @return boolean true = success, false = error
     */
    public static <T extends CRUDable> boolean delete(final T toDelete)
        { %*\ldots*) }

    %*\ldots*)

    /**
     * Execute a query which returns data of a generic type
     *
     * @param query HBMInteraction implementation
     * @param <T> The returning type
     * @return the data
     */
    public static <T> T executeHBMInteraction(HBMInteraction<T> query)
        { %*\ldots*) }

    /**
     * Get a list of entities
     *
     * @param tClass class of the entities
     * @param restrictions map of names of fields and their values which
     *                     must be equal in the fetched entities
     *                     (null accepted if not used)
     * @param criteria list of additional filters (Hibernate Criterion
     *                 objects, null accepted if not used)
     * @param <T> entity type. Must be readable
     * @param o order of the entities (Hibernate Order, null accepted if
     *          not used)
     * @param page the page number to fetch (starts at 1, null accepted if
     *             not used)
     * @return the list of entities
     */
    public static <T extends Readable> List<T> get(Class<T> tClass,
        Map<String, Object> restrictions, List<Criterion> criteria,
        Order[] o, Integer page) { %*\ldots*) }
    
    /**
     * Get a list of entities
     *
     * @param tClass class of the entities
     * @param <T> entity type. Must be readable
     * @return the list of entities
     */ 
    public static <T extends Readable> List<T> get(Class<T> tClass) { %*\ldots*) }


    /**
     * Get a single entity
     *
     * @param tClass class of the entities
     * @param restrictions map of names of fields and their values which
     *                     must be equal in the fetched entities
     *                     (null accepted if not used)
     * @param <T> entity type. Must be readable
     * @return the list of entities
     */
    public static <T extends Readable> T getOne(Class<T> tClass,
        Map<String, Object> restrictions) { %*\ldots*) }

    /**
     * Get a single entity
     *
     * @param tClass class of the entities
     * @param pk the primary key object of the entity
     * @param <T> entity type. Must be readable and contain a primary key
     *            object
     * @return the list of entities
     */
    public static <T extends Readable> T getOne(Class<T> tClass,
        PrimaryKey<T> pk) { %*\ldots*) }
}
\end{lstlisting}

\begin{it}
  Oltre a quanto mostrato, \textit{restaurant} contiene vari metodi utilità per
  la gestione di file \texttt{.properties}, per la validazione dei dati in
  input, per la registrazione della \textit{timestamp} di creazione o modifica
  di un record, e altro ancora.
\end{it}
\begin{en}
  Beside what shown, \textit{restaurant} includes many utility methods able to
  manage \texttt{.properties} files, to validate input data, to register
  creation and update \textit{timestamps}, and much more.
\end{en}

\begin{it}
  \subsubsection{\textit{restaurant} -- lato client}
  La parte client della libreria \textit{restaurant} è implementata con il
  linguaggio \textit{TypeScript}, un'estensione di \textit{Javascript}
  che aggiunge tipizzazione statica, i classici costrutti della programmazione
  ad oggetti, nonchè il supporto alle generiche. Segue il listato dell'interfaccia della
  classe \textit{RESTService}, la quale contiene metodi statici per comunicare
  con il server asincronamente tramite istanze di classi ``entità'', cioè classi
  figlie della classe astratta \textit{Table}.
\end{it}
\begin{en}
  \subsubsection{\textit{restaurant} -- client side}
  The client portion of the \textit{restaurant} library is implemented with the
  \textit{TypeScript} progamming language, an extension of \textit{Javascript}
  offering static typing, common OOP constructs and generics support. The
  following listings describes the \textit{RESTService} class interface, which
  contains some static methods useful to exchange data asyncronously with the
  server in the form of instances of ``entity'' classes, inheriters of the
  abstract class \textit{Table}.
\end{en}

\begin{it}
  \def\restservicets-title{Interfaccia della classe \textit{RESTService}}
\end{it}
\begin{en}
  \def\restservicets-title{Class interface of \textit{RESTService}}
\end{en}
\begin{lstlisting}[caption=\restservicets-title, label={lst:restservice-ts}, language=Java]
export class RESTService {

  ...

  /**
   * Read all the pages of an entity in order to save them for offline
   * readings.
   *
   * @param {{ new(): T }} - class of the table to read
   * @param {any} - key data for the search. Must not contain filters
   *                or a field with key '_page'
   * @return {Promise<boolean>} boolean promise that resolves when the
   *                            reading has been done, true if succesful,
   *                            false if not
   */
  public bulkRead<T extends Table>(type: TableStatic, restrictions?: any):
    Promise<boolean> { ... }

  /**
   * Retrieves a list of entities. When online and requested without
   * filters, the list is saved in the offline storage. When offline,
   * the data from the offline storage is read and filtered accordingly.
   *
   * Request criteria regarding directly properties of the entity MUST
   * have the following format:
   *
   * 'attr-' + name_of_property[.nested] [+ '||' + other_property] +
   * ('-like' | '-eq' | '-flag' | '-gt' | '-lt' | '-gte' | '-lte')
   *
   * Multiple field names separed by '||' state that the search must be
   * done on multiple fields with a logic OR.
   *
   * The different suffixes denote different logical criteria. Look up
   * the documentation of the meetsCriteriaFilter*(...) methods in
   * order to get detailed info on each one.
   *
   * @param {{ new(): T }} type - type of the table to read
   * @param {number} page - number of the page starting at 1 (in offline
   *                        mode, a 20 entities slice; in online mode,
   *                        as defined by the server). -1 is for no
   *                        pagination
   * @param {any} restrictions - restrictions required by the server,
   *                             and filters.
   * @param {boolean} offline - whether to fetch (true) or not (false)
   *                            offline entities to sync. Defaults to true
   * @return {Promise<T[]>} - promise of the expanded list, unsuccesful
   *                          when the storage readings are unsuccesful
   */
  public read<T extends Table>(type: TableStatic, page: number,
    restrictions?: any, addOffline?: boolean): Promise<T[]> { ... }

  /**
   * Asks to the server which entity instances of the ones
   * saved in the offline storage exist and deletes the
   * ones that do not exist on the server.
   *
   * @param {TableStatic} type - the entity type
   * @return {Promise<void>} promise rejecting only if an error occurs
   */
  private async existing(type: TableStatic): Promise<void> { ... }

  /**
   * Reads a single entity, even in the offline storage if offline.
   *
   * @param {{ new(): T }} type - class of the entity to read
   * @param {any} keyData - the primary key fields and their values
   *                        in a JS Object, plus the 'id' field of
   *                        type string used in the end bit of the
   *                        request path.
   * @return {Promise<T>} - promise of the element, unsuccesful if
   *                        not found.
   */
  public readOne<T extends Table>(type: TableStatic | string,
    keyData: any): Promise<T> { ... }

  /**
   * Updates an entity on the server or, if offline, saves it in the
   * offline sync queue.
   *
   * @param {{ new(): T }} type - class of the entity to be saved
   * @param {T} value - the entity to save
   * @param {any} keyData - the primary key fields and their values
   *                        in a JS Object, plus the 'id' field of
   *                        type string used in the end bit of the
   *                        request path.
   * @return {Promise<T>} - promise of the saved element.
   */
  public update<T extends Table>(type: TableStatic | string, value: T,
    keyData: any): Promise<T> { ... }
  
  /**
   * Creates an entity on the server or, if offline, saves it in the
   * offline sync queue.
   *
   * @param {{ new(): T }} type - class of the entity to be deleted
   * @param {string} id - string used in the end bit of the request path.
   * @param {any} keyData - the primary key fields and their values in
   *                        a JS Object
   * @return {Promise<T>} - promise of the element deleted
   */
  public create<T extends Table>(type: TableStatic | string, value: T):
    Promise<T> { ... }
    
  /**
   * Deletes an entity on the server or, if offline, marks it for
   * deletion in the offline sync queue.
   *
   * @param {{ new(): T }} type - class of the entity to be saved
   * @param {any} keyData - the primary key fields and their values in
   *                        a JS Object, plus the 'id' field of type string
   *                        that goes in the end bit of the request
   *                        path
   * @return {Promise<T>} - promise of the element created.
   */
  public delete<T extends Table>(type: TableStatic | string, keyData: any):
    Promise<T> { ... }
}
\end{lstlisting}

\begin{it}
	\subsection{Stato del progetto}
\end{it}
\begin{en}
	\subsection{Project status}
\end{en}

\begin{it}
  \def\itgganttprg{Progettazione}
  \def\itggantttf{Test funzioni}
  \def\itgganttir{Impl. \textit{restaurant}}
  \def\itgganttfunz{Impl. sezioni}
  \def\itgganttim{Inv. di magazzino}
  \def\itgganttcal{Agenda}
  \def\itgganttsogg{Soggetti}
  \def\itgganttco{Ordini cliente}
  \def\itgganttrifr{Rininim. \textit{restaurant}}
  \def\itggantttr{Test \textit{restaurant}}
  \def\itgganttadtarch{Adattam. architettura}
  \def\itgganttstr{Test}
  \def\itgganttril{Finalizzazione}
\end{it}
\begin{en}
  \def\itgganttprg{Planning}
  \def\itggantttf{Sections testing}
  \def\itgganttir{\textit{restaurant} impl.}
  \def\itgganttfunz{Sections impl.}
  \def\itgganttim{Warehouses}
  \def\itgganttcal{Calendar}
  \def\itgganttsogg{Customers and suppl.}
  \def\itgganttco{Customers' orders}
  \def\itgganttrifr{\textit{restaurant} improv.}
  \def\itggantttr{\textit{restaurant} testing}
  \def\itgganttadtarch{Architecture revising}
  \def\itgganttstr{Testing}
  \def\itgganttril{Finalisation}
\end{en}

\begin{figure}[H]
	\centering
	\resizebox{\ifdim\width>\linewidth\linewidth\else\width\fi}{!}{
		\begin{ganttchart}{1}{49}
			\gantttitle{2017}{28}
			\gantttitle{2018}{21} \\
			\gantttitle{6}{2}
			\gantttitle{7}{4}
			\gantttitle{8}{5}
			\gantttitle{9}{4}
			\gantttitle{10}{4}
			\gantttitle{11}{5}
			\gantttitle{12}{4}
			\gantttitle{1}{5}
			\gantttitle{2}{4}
			\gantttitle{3}{4}
			\gantttitle{4}{4}
			\gantttitle{5}{4} \\
			\gantttitlelist{25,...,52}{1}
			\gantttitlelist{1,...,21}{1} \\
			\ganttbar[name=prg]{\itgganttprg}{1}{1} \\
			\ganttlinkedbar[name=ir]{\itgganttir}{2}{37} \\
			\ganttgroup[name=funz]{\itgganttfunz}{2}{13} \\
			\ganttbar{\itgganttim}{2}{4} \\
			\ganttbar{\itgganttcal}{5}{6} \\
			\ganttbar{\itgganttsogg}{7}{8} \\
			\ganttbar{\itgganttco}{11}{13} \\
			\ganttbar[name=tf]{\itggantttf}{14}{16} \\
			\ganttlinkedgroup[name=tr]{\itggantttr}{19}{46} \\
			\ganttbar{\itgganttadtarch}{19}{37} \\
			\ganttbar[name=str]{\itgganttstr}{38}{46} \\
			\ganttbar[name=ril]{\itgganttril}{47}{49}
			\ganttlink{funz}{tf}
			\ganttlink{prg}{funz}
			\ganttlink{ir}{str}
			\ganttlink{tr}{ril}
		\end{ganttchart}
	}
	\begin{it}
		\caption{Il diagramma di Gantt del progetto
			\textit{InteGRa Mobile}}
	\end{it}
	\begin{en}
		\caption{\textit{InteGRa Mobile} Gantt diagram} 
	\end{en}
	\label{fig:ganttitgmob}
\end{figure}

\begin{it}
  Il diagramma di Gantt in figura \ref{fig:ganttitgmob} non è stato rispettato:
  il progetto non è stato completato entro la fine di maggio. Tuttavia, ci\`o che
  è stato e doveva essere necessariamente completato \`e la parte pi\`u importante del progetto:
	\textit{restaurant}, con il motore di sincronizzazione online/offline e
  l'implementazione delle procedure generiche che permette di implementare velocemente nuove sezioni dell'applicazione.
\end{it}
\begin{en}
	The Gantt diagram in figure \ref{fig:ganttitgmob} was not followed: the
  project was not completed within the end of May. However, the most important
  piece of software that did have to be working by the deadline was finished:
  \textit{restaurant}, with the online/offline syncronization engine and the
  interface and implementation of the procedures needed for generating in an easy
  fashion new sections of the app.
\end{en}

\begin{it}
	\subsection{Fasi del progetto}
	
	Le fasi del progetto originariamente stabilite, di cui date di inizio e fine
  sono state specificate nel diagramma in figura \ref{fig:ganttitgmob}, sono
  qui elencate.
	
	\begin{description}

	\item[Progettazione] delineazione delle funzionalità da implementare
    nell'applicazione e prime bozze dell'interfaccia utente;
    
	\item[Implementazione \textit{restaurant}] implementazione della libreria su
    cui si basano tutte le sezioni del programma. Vista l'importanza di questo
    componente, gli sviluppi vengono continuati in parallelo con
    l'implementazione delle sezioni;
    
	\item[Implementazione sezioni] creazione di interfaccia e logica per le
    funzionalit\'a previste, cio\'e:
	\begin{itemize}
	\item Magazzini;
	\item Agenda;
	\item Soggetti;
	\item Ordini cliente;
	\end{itemize}
  
  \item[Test per le sezioni] collaudo degli algoritmi e della UI per
    efficacia ed efficienza, nonch\'e eventuali correzioni;
  
	\item[Rifinimento \textit{restaurant}] collaudo delle scelte
    architetturali e algoritmi usati nella libreria e rifinimento di essi;
    Fase divisa in:
	\begin{description}
	\item[Miglioramento architettura] analisi del protocollo per individuare
    punti di debolezza e possibili ottimizzazioni;
	\item[Test per \textit{restaurant}] messa alla prova dei cambiamenti fatti;
	\end{description}
  
\item[Finalizzazione] task finali del progetto, tra cui branding, operazioni
  pre-rilascio, e gestione di eventuali personalizzazioni richieste dai clienti.

\end{description}
\end{it}
\begin{en}
	\subsection{Project phases}
	
	The project phases originally established, by which start and end dates are shown on     
  the diagram in figure \ref{fig:ganttitgmob}, are described below.
	
	\begin{description}

	\item[Planning] features definition and first drafts of the user interface;
    
	\item[\textit{restaurant} implementation] implementation of the library on
    which all the sections are based. Given the importance of this component,
    it is developed concurrently with the sections;
    
	\item[Sections implementation] creation of user interface and business logic
    for all the features planned, which are:
	\begin{itemize}
	\item Warehouses;
	\item Calendar;
	\item Customers and suppliers;
	\item Customers' orders;
	\end{itemize}
  
  \item[Sections testing] trial of algorithms and UI to achieve effectiveness
    and efficiency and possible adjustments;
  
	\item[\textit{restaurant} improvement] trial of architectural choices and
    algorithms used inside the library, with improvement of the last ones.
    This phase is divided in:
	\begin{description}
	\item[Architecture revising] analisis of the protocol aimed to find weak
    points and possible optimisations;
	\item[\textit{restaurant} testing] trial of the changes implemented before;
	\end{description}
  
\item[Finalisation] collection of final tasks, including branding, pre-release
  operations and possible development of per-customer customizations.

\end{description}
\end{en}

\begin{it}
\section{Il progetto secondario: \textit{Guac Remote}}
  
Questo progetto \`e destinato ad un'importante azienda del territorio,
produttrice di macchine equilibratrici. Tale applicazione dovrebbe fungere da
client di desktop remoto (come \textit{TeamViewer}\footnote{TeamViewer:
  \url{https://www.teamviewer.com/it}}) per il PC presente nel loro prodotto
di punta, un sistema di calibrazione delle ruote di autoveicoli funzionante
mediante telecamere. Il programma dovrebbe permettere all'operatore di tale
prodotto di interagire con il software presente nel macchinario, senza
scendere dal veicolo.

A causa di urgenza da parte del committente, lo sviluppo di questo progetto ha
interrotto sviluppi per \textit{InteGRa Mobile} fino alla fine del periodo di
alternanza estesa.
\end{it}
\begin{en}
\section{The side project: \textit{Guac Remote}}

This project is made for an important local company, which produces
wheel balancers. This application should work as a remote desktop client
(as \textit{TeamViewer}\footnote{TeamViewer: \url{https://www.teamviewer.com}})
for the PC mounted inside their main product, an automatic wheel balancer
that works with cameras. The program should allow the user to interact with the
wheel balancing software, without needing them to exit from the veichle.

Since this project was urgent for the customer, development on \textit{InteGRa
  Mobile} was stopped until the end of the extended school internship period.
\end{en}

\begin{it}
  \subsection{Architettura software}
\end{it}
\begin{en}
  \subsection{Software architecture}
\end{en}

\begin{figure}[H]
	\centering
	\resizebox{\ifdim\width>\linewidth\linewidth\else\width\fi}{!}{\input{diagrams/guacremote}}
	\begin{it}
		\caption{L'architettura di \textit{Guac Remote}}
	\end{it}
	\begin{en}
		\caption{The architecture of \textit{Guac Remote} as a diagram}
	\end{en}
	\label{fig:argosarch}
\end{figure}

\begin{it}
	\textit{Guac Remote} è basata su un'applicativo e libreria per la connessione
	a computer remoto chiamato \textit{Apache Guacamole}\cite{guacamole:website}.
	Tale software è costituito da due parti:\cite{guacdoc:arch}
	\begin{description}
		\item[\textit{guacamole-server} (o \textit{guacd})] un servizio scritto
		in C che funge da adattatore tra il protocollo \textit{guacamole} e i
		protocolli VNC, RDP o SSH, utilizzando questi ultimi per stabilire connessioni
		con gli host remoti;
		\item[\textit{guacamole-client}] una WebApplication scritta tramite
		\textit{Java servlet} che fornisce un'interfaccia web per interagire con
		\textit{guacamole-server} e connettersi ai PC remoti.
	\end{description} 
	Data la natura open-source del progetto, sia \textit{guacamole-server} che
	\textit{guacamole-client} possono essere usati come libreria per la
	realizzazione di software derivati. In particolare, \textit{guacamole-client}
	può essere scomposto nelle librerie \textit{guacamole-common-js}, che contiene
	il codice Javascript per il client, e \textit{guacamole-common}, che fornisce
	classi Java per la connessione con \textit{guacamole-server}\cite{guacdoc:api}.
	
	In \textit{Guac Remote}, \textit{Apache Guacamole} è usato per fornire accesso
	remoto al PC presente nel macchinario, che contiene l'applicativo per la
	calibrazione, all'applicazione installata sul tablet. Nel dettaglio,
	\textit{guacamole-common-js} è usato nell'applicazione \textit{mobile} (la quale
	è basata su \textit{Apache Cordova}) per fornire
	un'interfaccia touchscreen per interagire con l'host remoto, mentre
	\textit{guacamole-common}, tramite una piccola Java Web Application, assieme a
	\textit{guacamole-server} sono installati sul PC.
	
	In aggiunta, tablet e PC possono comunicare informazioni aggiuntive tramite
	una WebSocket creata al momento della connessione, necessaria per alcune
	estensioni al protocollo richieste dal cliente.
\end{it}
\begin{en}
	\textit{Guac Remote} is based on an application and library for remote desktop
	connectivity named \textit{Apache Guacamole}\cite{guacamole:website}. This
	software is a combination of two components:\cite{guacdoc:arch}
	\begin{description}
		\item[\textit{guacamole-server} (a.k.a. \textit{guacd})] a daemon written
		in C which takes the role of an adapter between the \textit{guacamole}
		protocol and the VNC, RDP and SSH protocols, using the last ones to connect
		to the remote hosts;
		\item[\textit{guacamole-client}] a Web Application written with \textit{Java
			Servlets} that offers a web interface for interacting with
	\end{description}
	\textit{guacamole-server} and to connect with remote PCs.
	Considering the open-source nature of the project, both \textit{guacamole-server}
	and \textit{guacamole-client} can be used as a library for the implementation of
	similar software. To be precise, \textit{guacamole-client} can be divided in the
	libraries \textit{guacamole-common-js}, containing the client-side Javascript
	code, and \textit{guacamole-common}, which contains Java classes for connecting
	with \textit{guacamole-server}\cite{guacdoc:api}.
	
	In \textit{Guac Remote}, \textit{Apache Guacamole} is used for granting remote
	access on the PC inside the machine, containing the balancing software, to the
	tablet containing the mobile app. In particular, \textit{guacamole-common-js} is
	used in the mobile app (which is built with \textit{Apache Cordova}) in order to
	make a touchscreen interface for the interacting with the remote host, while
	\textit{guacamole-common}, bundled in a small Java Web Application, toghteter
	with \textit{guacamole-server} are installed on the PC.
	
	In addition, the tablet and the PC can share additional information through a
	WebSocket created at the same time as the connection, which is needed by some
	custom extensions commisioned by the customer.
\end{en}

\begin{it}
	\subsection{Stato del progetto}
\end{it}
\begin{en}
	\subsection{Project status}
\end{en}

\begin{it}
	\def\ganttargosprg{Incontro con il cliente}
	\def\ganttargosprot{Realizzazione primo prototipo}
	\def\ganttargosdemo{Prima demo al cliente}
	\def\ganttargosstima{Stime orarie per sviluppi futuri}
	\def\ganttargosimpl{Implementazione richieste \ldots}
	\def\ganttargoszoom{Apertura tastiera e zoom \ldots}
	\def\ganttargosscroll{Scroll a due dita}
	\def\ganttargosconf{Interfaccia di configurazione}
	\def\ganttargoskbd{Input tramite tastiera nativa \ldots}
	\def\ganttargosdemodef{Demo al cliente}
	\def\ganttargosagg{Implementazione richieste agg\ldots}
	\def\ganttargoscon{Consegna}
\end{it}
\begin{en}
	\def\ganttargosprg{Meeting with the customer}
	\def\ganttargosprot{Development of the first \ldots}
	\def\ganttargosdemo{First demo to the customer}
	\def\ganttargosstima{Time estimates for future \ldots}
	\def\ganttargosimpl{Implementation of the \ldots}
	\def\ganttargoszoom{Keyboard opening with zoom \ldots}
	\def\ganttargosscroll{Two finger scroll}
	\def\ganttargosconf{Settings page}
	\def\ganttargoskbd{Input through native iOS or \ldots}
	\def\ganttargosdemodef{Demo to the customer}
	\def\ganttargosagg{Implementation of additional \ldots}
	\def\ganttargoscon{Delivery}
\end{en}

\begin{figure}[H]
	\centering
	\resizebox{\ifdim\width>\linewidth\linewidth\else\width\fi}{!}{
		\begin{ganttchart}{1}{32}
			\gantttitle{2018}{32} \\
			\gantttitle{2}{6}
			\gantttitle{3}{8}
			\gantttitle{4}{8}
			\gantttitle{5}{9}
			\gantttitle{6}{1} \\
			\gantttitlelist{7,...,22}{2} \\
			\foreach \n in {7,...,22}{
				\gantttitle{G}{1}
				\gantttitle{V}{1}	
			} \\
			\ganttbar[name=prg]{\ganttargosprg}{1}{1} \\
			\ganttlinkedbar{\ganttargosprot}{2}{4} \\
			\ganttlinkedbar{\ganttargosdemo}{5}{5} \\
			\ganttlinkedbar{\ganttargosstima}{6}{6} \\
			\ganttlinkedgroup[name=impl]{\ganttargosimpl}{8}{12} \\
			\ganttbar{\ganttargoszoom}{8}{9} \\
			\ganttbar{\ganttargoskbd}{10}{10} \\
			\ganttbar{\ganttargosscroll}{11}{11} \\
			\ganttbar{\ganttargosconf}{12}{12} \\
			\ganttbar[name=demodef]{\ganttargosdemodef}{13}{13} \\
			\ganttlinkedbar{\ganttargosagg}{14}{30} \\
			\ganttlinkedbar{\ganttargoscon}{31}{32}
			\ganttlink{impl}{demodef}
		\end{ganttchart}
	}
	\begin{it}
		\caption{Il diagramma di Gantt del progetto \textit{Guac Remote}}
	\end{it}
	\begin{en}
		\caption{\textit{Guac Remote} Gantt diagram}
	\end{en}
	\label{fig:ganttargos}
\end{figure}

\begin{it}
	Questo progetto non ha avuto ritardi. L'applicazione \'e stata
	mostrata in demo il giorno 29/03 e consegnata il giorno 1/6.
  Il cliente si ritiene soddisfatto del lavoro fatto.
\end{it}
\begin{en}
  This project did not have delays. The application has been demoed on 29/03 and
  delivered on 1/6. The customer is satisfied with the work made.
\end{en}

\begin{it}
	\subsection{Fasi del progetto}
\end{it}
\begin{en}
	\subsection{Project phases}
\end{en}

\begin{it}
	Le fasi del progetto stabilite, di cui le date di inizio e di fine sono indicate nel
	diagramma della figura \ref{fig:ganttargos}, sono:
	
	\begin{description}
		\item[Incontro con il cliente] primo scambio di informazioni per capire gli
		obiettivi del progetto;
		\item[Realizzazione primo prototipo] dimostrazione dell'efficacia del protocollo
		\textit{guacamole} tramite un prototipo del prodotto;
		\item[Prima demo al cliente] demo del prototipo al cliente;
		\item[Stime orarie per sviluppi futuri] delineazione della tabella di marcia per
		gli sviluppi futuri;
		\item[Implementazione richieste del cliente] sviluppo delle estensioni al
		protocollo richieste. Nel dettaglio, esse sono:
		\begin{description}
			\item[Apertura tastiera e zoom al ``focus'' di un input] alla pressione di un
			campo di testo, l'applicazione \textit{mobile} deve automaticamente ingrandire
			l'area selezionata e mostrare una tastiera;
			\item[Input tramite tastiera nativa Android o iOS] sostituzione della tastiera
			su schermo di \textit{guacamole-common-js} con quella nativa;
			\item[Scroll a due dita] supporto della gesture di scroll verticale a due dita;
			\item[Interfaccia di configurazione] creazione di una piccola finestra di
			configurazione, in cui inserire IP e porta del PC;
		\end{description}
		\item[Demo al cliente] dimostrazione degli sviluppi fatti al cliente e eventuale
		definizione di richieste aggiuntive;
		\item[Implementazione delle richieste aggiuntive del cliente]
		\item[Consegna] operazioni finali del progetto, tra cui branding e compilazione
		per rilascio.
	\end{description}
\end{it}
\begin{en}
  The established project phases, by which start and end dates are shown on the diagram in
  figure \ref{fig:ganttargos}, are listed below.

  \begin{description}
    \item[Meeting with the customer] first information exchanged aimed to
      establish the project targets;
		\item[Development of the first prototype] demonstration of
      \textit{guacamole} as an effective protocol through a prototype;
		\item[First demo to the customer] prototype demo with the customer;
		\item[Time estimates for future development] creation of the future development
		  schedule;
		\item[Implementation of the features required by the customer] development
      of the requested protocol extensions, which are listed below.
		\begin{description}
			\item[Keyboard opening with zoom on input focus] when an input field is
        pressed, the mobile app must automatically zoom on the selected area and
        open a keyboard;
			\item[Input through native iOS or Android keyboard] substitution of the
        keyboard included with \textit{guacamole-common-js} with the native one;
			\item[Two finger scroll] support for vertical two finger scrolling;
			\item[Settings page] creation of a small configuration panel, needed to
        enter the PC's IP address and port number;
		\end{description}
		\item[Demo to the customer] meeting aimed to show the work done and to
      establish possible additional requests;
		\item[Implementation of additional requests from the customer]
		\item[Delivery] final operations for the project, including branding and
      release compilation.
  \end{description}
\end{en}

\newpage

\pagenumbering{gobble}

\listoffigures
\lstlistoflistings
\printbibliography

\vfill
\begin{it}
  Documento scritto con \LaTeX2e (\url{https://www.latex-project.org/}). 
\end{it}
\begin{en}
  Document written using \LaTeX2e (\url{https://www.latex-project.org/}). 
\end{en}
\end{document}