The HTmlFlow is a simple Java library for writing HTML documents in a fluent style into a java.io.PrintStream. For instance, considering a Java class Taskwith three properties: Title, Description and a Priority, then we can produce an HTML document for a Task object in the following way:
//
// Creates a new Task object
//
Task t1 = new Task("ISEL MPD project", "A Java library for serializing objects in HTML.", Priority.High);
//
// Creates and setup an HtmlView object for task details
//
HtmlView<Task> taskView = new HtmlView<Task>();
taskView.head().title("Task Details");
taskView
.body()
.heading(1, "Task Details")
.hr()
.div()
.text("Title: ").text(t1.getTitle())
.br()
.text("Description: ").text(t1.getDescription());
.br()
.text("Priority: ").text(t1.getPriority().toString());
//
// Produces an HTML file document
//
try{
PrintStream out = new PrintStream(new FileOutputStream("Task.html"));
taskView.setPrintStream(out).write(1, t1);
Runtime.getRuntime().exec("explorer Task.html");
}finally{
out.close();
}The HtmlFlow also supports binders that enable the same HTML view to be used (or bind) with different object models.
public static void main(String[] args) throws IOException {
HtmlView<Task> taskView = taskDetailsView();
try{
Task t1 = new Task("ISEL MPD project", "A Java library for serializing objects in HTML.", Priority.High);
PrintStream out = new PrintStream(new FileOutputStream("Task1.html"));
taskView.setPrintStream(out).write(1, t1);
Runtime.getRuntime().exec("explorer Task1.html");
}finally{
out.close();
}
try{
Task t2 = new Task("Special dinner", "Have dinner with someone!", Priority.Normal);
PrintStream out = new PrintStream(new FileOutputStream("Task2.html"));
taskView.setPrintStream(out).write(1, t2); // Now we can use the same HtmlView with a different task
Runtime.getRuntime().exec("explorer Task2.html");
}finally{
out.close();
}
}
private static HtmlView<Task> taskDetailsView(){
HtmlView<Task> taskView = new HtmlView<Task>();
taskView.head().title("Task Details");
taskView
.body()
.heading(1, "Task Details")
.hr()
.div()
.text("Title: ").text(binderGetTitle())
.br()
.text("Description: ").text(binderGetDescription())
.br()
.text("Priority: ").text(binderGetPriority());
return taskView;
}
private static ModelBinder<Task> binderGetTitle(){
return new ModelBinder<Task>() {public void bind(PrintStream out, Task model) {
out.print(model.getTitle());
}};
}
private static ModelBinder<Task> binderGetDescription(){
return new ModelBinder<Task>() {public void bind(PrintStream out, Task model) {
out.print(model.getDescription());
}};
}
private static ModelBinder<Task> binderGetPriority(){
return new ModelBinder<Task>() {public void bind(PrintStream out, Task model) {
out.print(model.getPriority());
}};
}Finally, an example of producing an HTML table bind to a list of tasks:
public static void main(String[] args) throws IOException {
HtmlView<Task> taskView = taskDetailsView();
try{
Task t1 = new Task("ISEL MPD project", "A Java library for serializing objects in HTML.", Priority.High);
Task t2 = new Task("Special dinner", "Have dinner with someone!", Priority.Normal);
Task t3 = new Task("Manchester City - Sporting", "1/8 Final UEFA Europa League. VS. Manchester City - Sporting!", Priority.High);
PrintStream out = new PrintStream(new FileOutputStream("TaskList.html"));
taskListView().setPrintStream(out).write(1, Arrays.asList(t1, t2, t3));
Runtime.getRuntime().exec("explorer TaskList.html");
}finally{
out.close();
}
}
private static HtmlView<Iterable<Task>> taskListView(){
HtmlView<Iterable<Task>> taskView = new HtmlView<Iterable<Task>>();
taskView.head().title("Task List");
HtmlTable<Iterable<Task>> t = taskView.body()
.heading(1, "Task Details")
.hr()
.div()
.table();
HtmlTr<Iterable<Task>> headerRow = t.tr();
headerRow.th().text("Title");
headerRow.th().text("Description");
headerRow.th().text("Priority");
t.trFromIterable(binderGetTitle(), binderGetDescription(), binderGetPriority());
return taskView;
}