I found that the error is in
DataSourceHelper.executeDataSourceServletFlow(request, response,
(DataTableGenerator) data, isRestrictedAccessMode()); line
its not going in the next line.
Cant any one please suggest why is this happening.
Actually I was to make this link
http://code.google.com/apis/visualization/documentation/dev/dsl_get_started.html
as a single event and the chart should be draw.... is ther any easy
method.... or what I am doing is right?
Why is this code not running after that line.
Please suggest guys I am badly struggling :(
@Override
protected void doGet(HttpServletRequest request,
HttpServletResponse response)
throws ServletException, IOException {
response.setContentType("text/html;charset=UTF-8");
PrintWriter out = response.getWriter();
// processRequest(request, response);
try{
System.out.println("##1");
DataTable data = generateDataTable(null, request);
System.out.println("##2");
DataSourceHelper.executeDataSourceServletFlow(request, response,
(DataTableGenerator) data, isRestrictedAccessMode());<<<<<<- i think
some problem here
/////then i want to do is
// RequestDispatcher rd;
//rd = request.getRequestDispatcher("newhtml.html");
//rd.include(request, response);//forward(request, response); // i
hope this will work fine
System.out.println("##3");
out.println("<html>");
out.println("<head>");
out.println("<title>Servlet Test2</title>");
out.println("</head>");
out.println("<body>");
out.println("<h1>Servlet Test2 at " +
request.getContextPath () + "</h1>");
out.println("</body>");
out.println("</html>");
}
finally {
out.close();
}
}
@Override
public Capabilities getCapabilities() {
return Capabilities.NONE;
}
protected boolean isRestrictedAccessMode() {
return false;
}
@Override
public DataTable generateDataTable(Query query, HttpServletRequest
request) {
// Create a data table.
DataTable data = new DataTable();
ArrayList<ColumnDescription> cd = new
ArrayList<ColumnDescription>();
cd.add(new ColumnDescription("name", ValueType.TEXT, "Animal
name"));
cd.add(new ColumnDescription("link", ValueType.TEXT, "Link to
wikipedia"));
cd.add(new ColumnDescription("population", ValueType.NUMBER,
"Population size"));
cd.add(new ColumnDescription("vegeterian", ValueType.BOOLEAN,
"Vegetarian?"));
data.addColumns(cd);
// Fill the data table.
try {
data.addRowFromValues("Aye-aye", "http://en.wikipedia.org/wiki/
Aksahy adgasidge", 100, true);
data.addRowFromValues("Sloth", "http://en.wikipedia.org/wiki/
Sloth", 300, true);
data.addRowFromValues("Leopard", "http://en.wikipedia.org/wiki/
Leopard", 50, false);
data.addRowFromValues("Tiger", "http://en.wikipedia.org/wiki/
Tiger", 80, false);
} catch (TypeMismatchException e) {
System.out.println("Invalid type!");
}
return data;
}
On Jun 10, 3:53 pm, Akku <[email protected]> wrote:
> how can i make this entire process as 1 single
> event???http://code.google.com/apis/visualization/documentation/dev/dsl_get_s...
> and draw the chart on single click?
>
> On Jun 10, 3:08 pm, Akku <[email protected]> wrote:
>
> > This the servlet i have made now and trying to make a chart.
>
> > public class Beat extends HttpServlet implements DataTableGenerator {
>
> > private static final Log log =
> > LogFactory.getLog(Beat.class.getName());
>
> > // * Processes requests for both HTTP <code>GET</code> and
> > <code>POST</code> methods.
> > protected void processRequest(HttpServletRequest request,
> > HttpServletResponse response)
> > throws ServletException, IOException {
> > response.setContentType("text/html;charset=UTF-8");
> > PrintWriter out = response.getWriter();
>
> > DataTable data = generateDataTable(null, request);
> > try {
> > // /* TODO output your page here
> > out.println("<html>");
> > out.println("<head>");
> > out.println("<title>Servlet Beat</title>");
> > out.println("</head>");
> > out.println("<body>");
> > out.println("<h1>Servlet Beat at " +
> > request.getContextPath () + "</h1>");
> > out.println("</body>");
> > out.println("</html>");
>
> > DataSourceHelper.executeDataSourceServletFlow(request, response,
> > (DataTableGenerator)generateDataTable(null, request),Boolean.FALSE);
>
> > /// sending to html to draw the chart // the html code is fine too
> > RequestDispatcher rd;
> > rd = request.getRequestDispatcher("newhtml.html");
> > rd.include(request, response); ////forward(request,
> > response);
>
> > } finally {
>
> > out.close();
> > }
> > }
>
> > public DataTable generateDataTable(Query query,
> > HttpServletRequest request) {
> > // Create a data table.
> > DataTable data = new DataTable();
> > ArrayList<ColumnDescription> cd = new
> > ArrayList<ColumnDescription>();
> > cd.add(new ColumnDescription("name", ValueType.TEXT, "Animal
> > name"));
> > cd.add(new ColumnDescription("link", ValueType.TEXT, "Link to
> > wikipedia"));
> > cd.add(new ColumnDescription("population", ValueType.NUMBER,
> > "Population size"));
> > cd.add(new ColumnDescription("vegeterian", ValueType.BOOLEAN,
> > "Vegetarian?"));
>
> > data.addColumns(cd);
>
> > // Fill the data table.
> > try {
> > data.addRowFromValues("Aye-aye", "http://en.wikipedia.org/wiki/
> > Aye-aye", 100, true);
> > data.addRowFromValues("Sloth", "http://en.wikipedia.org/wiki/
> > Sloth", 300, true);
> > data.addRowFromValues("Leopard", "http://en.wikipedia.org/wiki/
> > Leopard", 50, false);
> > data.addRowFromValues("Tiger", "http://en.wikipedia.org/wiki/
> > Tiger", 80, false);
> > } catch (TypeMismatchException e) {
> > System.out.println("Invalid type!");
> > }
> > return data;
> > }
>
> > public Capabilities getCapabilities(){
> > return Capabilities.NONE;
> > }
>
> > protected boolean isRestrictedAccessMode() {
> > return false;
> > }
>
> > @Override
> > protected void doGet(HttpServletRequest request,
> > HttpServletResponse response)
> > throws ServletException, IOException {
> > processRequest(request, response);
> > }
> > �...@override
> > protected void doPost(HttpServletRequest request,
> > HttpServletResponse response)
> > throws ServletException, IOException {
> > processRequest(request, response);
> > }
>
> > I am not able to draw the chart.
> > I want to draw the chart at one url hit how can i do
> > please guide me
>
> > On Jun 10, 12:00 pm, Akku <[email protected]> wrote:
>
> > > ok
> > > I run this code
>
> > >http://code.google.com/apis/visualization/documentation/dev/dsl_csv.h...
>
> > > when I hit the address I get the following result
>
> > > ............................................}]},{c:[{v:'Tiger'},
> > > {v:'http://en.wikipedia.org/wiki/Tiger'},{v:80.0},{v:false}]} which is
> > > ok
>
> > > then i run the following code
>
> > > <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
> > > <!DOCTYPE html>
> > > <html>
> > > <head>
> > > <title>Getting Started Example</title>
> > > <!--Load the AJAX API-->
> > > <script type="text/javascript" src="http://www.google.com/jsapi";></
> > > script>
> > > <script type="text/javascript">
>
> > > //Load the Visualization API and the ready-made Google table
> > > visualization
> > > google.load('visualization', '1', {'packages':['table']});
>
> > > // Set a callback to run when the API is loaded.
> > > google.setOnLoadCallback(init);
>
> > > // Send the query to the data source.
> > > function init() {
>
> > > // Specify the data source URL.
> > > var query = new google.visualization.Query('Beat');// name of my
> > > servlet
>
> > > // Send the query with a callback function.
> > > query.send(handleQueryResponse);
> > > }
>
> > > // Handle the query response.
> > > function handleQueryResponse(response) {
> > > if (response.isError()) {
> > > alert('Error in query: ' + response.getMessage() + ' ' +
> > > response.getDetailedMessage());
> > > return;
> > > }
>
> > > // Draw the visualization.
> > > var data = response.getDataTable();
> > > var chart = new
> > > google.visualization.Table(document.getElementById('chart_div'));
> > > chart.draw(data, {width: 600, height: 150, is3D: true});
> > > }
> > > </script>
> > > </head>
> > > <body>
> > > <h1>Hello! Data Source!</h1>
>
> > > A table chart that shows data taken from the simple data source.
> > > <!--Div that will hold the visualization-->
> > > <div id="chart_div"></div>
> > > </body>
> > > </html>
>
> > > And I get perfect chart.
>
> > > Now I want to design such that when the user hits the address to the
> > > servlet I dont want the following result
> > > ............................................}]},{c:[{v:'Tiger'},
> > > {v:'http://en.wikipedia.org/wiki/Tiger'},{v:80.0},{v:false}]} which is
> > > ok
>
> > > instead i want to draw the chart directly using the the above html
> > > page.
> > > I tried using dispactcher.forward(XXX.html);
> > > but i am getting error.
>
> > > So i got hint from the
> > > site....http://code.google.com/apis/visualization/documentation/dev/dsl_key_c...
> > > Has anyone tried this or what should be the approach to process and
> > > draw the chart on one hit and just showing the chart on user's
> > > browser?
>
> > > On Jun 10, 10:18 am, Badtnik <[email protected]> wrote:
>
> > > > Hey, can you send a simple code snippet causing that response and we
> > > > can help you debug it?
>
> > > > On Jun 10, 5:11 pm, Akku <[email protected]> wrote:
>
> > > > > I am following this
> > > > > tutorialshttp://code.google.com/apis/visualization/documentation/dev/dsl_csv.html
>
> > > > > It works fine for me but i am facing one problem
>
> > > > > at the following step given by google
> > > > > Updating Your Web Application on Apache Tomcat
> > > > > Click the following
> > > > > link:http://localhost:8080/myWebApp/csv?url=http://localhost:8080/myWebApp...
>
> > > > > The screen displays 6-7 lines of text, depending on your screen width.
> > > > > The text begins with google.visualization.Query.setResponse
> > > > > and ends with {c:[{v:'Bob'},{v:'Jane'}]}]}});
>
> > > > > This is the response that the example CSV data source sends to a
> > > > > visualization.
>
> > > > > I DONT want this thing coming in my browser
> > > > > instead i want to directly draw the chart after user hit the link
> > > > > as given by google
> > > > > Using a Visualization to View the Data
> > > > > The all_examples.html file in the <data_source_library_install>/
> > > > > examples/src/html directory can be used to view a visualization of the
> > > > > data.
>
> > > > > what can i do to follow all the step and directly draw the chart ?
> > > > > thanking you in advance
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