@GET
@Produces("application/json")
public String index(@PathParam("sid") String systemIdd) {
String systemId = java.net.URLDecoder.decode(systemIdd);
Wupsifer w = Wupsifer.getInstance();
SCSCPClient client = w.getClients().get(systemId);
if (null == client) return "[]";
List<Computation> cc = client.getComputations();
DateFormat df = DateFormat.getInstance();
JSONStringer js = new JSONStringer();
try {
// Begin array
js.array();
for (Computation c : cc) {
js.object();
js.key("id").value(c.getToken());
js.key("startedAt").value(df.format(c.getStartedAt()));
js.key("finishedAt").value(df.format(c.getStartedAt()));
js.endObject();
}
js.endArray();
// end array
} catch (Exception e) {
e.printStackTrace();
System.exit(1);
}
return js.toString();
}
@POST
@Produces("application/json")
public String create(@PathParam("sid") String systemIdd, @Context UriInfo ui) {
String systemId = java.net.URLDecoder.decode(systemIdd);
MultivaluedMap<String, String> queryParams = ui.getQueryParameters();
String command = queryParams.getFirst("command");
SCSCPClient sys = Wupsifer.getInstance().getClients().get(systemId);
Wupsifer w = Wupsifer.getInstance();
try {
w.compute(sys, OpenMathBase.parse(command));
} catch (Exception ignored) {
return ("Failure");
}
return "OK";
}
@GET
@Produces("application/json")
@Path("/{id}")
public String show(@PathParam("sid") String systemIdd, @PathParam("id") String idd) {
String systemId = java.net.URLDecoder.decode(systemIdd);
String id = java.net.URLDecoder.decode(idd);
SCSCPClient sys = Wupsifer.getInstance().getClients().get(systemId);
Computation c = sys.getComputation(id);
// System.out.println(" ----> " + c.toString() + " " + id + " " + systemId);
DateFormat df = DateFormat.getInstance();
JSONStringer js = new JSONStringer();
try {
js.object();
js.key("id").value(c.getToken());
js.key("startedAt").value(df.format(c.getStartedAt()));
js.key("finishedAt").value(df.format(c.getStartedAt()));
js.key("commandL").value(c.getRequest().toLatex());
js.key("commandP").value(c.getRequest().toPopcorn());
js.key("commandX").value(c.getRequest().toXml());
js.key("resultL").value(c.getResult().toLatex());
js.key("resultP").value(c.getResult().toPopcorn());
js.key("resultX").value(c.getResult().toXml());
js.endObject();
} catch (Exception e) {
e.printStackTrace();
System.exit(1);
}
return js.toString();
}
/**
* Entry point of all the handled actions
*
* @param target
* @param request
* @param response
* @param dispatch
* @throws java.io.IOException
* @throws javax.servlet.ServletException
*/
@Override
protected void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
String path = request.getPathInfo();
System.out.println("REQUEST path: " + path);
String error = "";
String res = null;
if (path.equals("/") || path.equals("/index") || path.equals("/index.html")) {
response.sendRedirect(HOME);
return;
}
if (path.equals("/compute")) {
String systemId = request.getParameter("systemId");
if (null == systemId) {
error += "ERROR. Must specify \"systemId\". ";
}
SCSCPClient client = w.getClients().get(systemId);
if (null == client) {
error += "ERROR. No system with systemId '" + systemId + "' found. ";
}
String command = request.getParameter("command");
if (null == command) {
error += "ERROR. Must specify 'command'. ";
}
String outputFormat = request.getParameter("outputFormat");
if (null == outputFormat) {
outputFormat = "xml";
}
OpenMathBase omb = null;
try {
omb = OpenMathBase.parse(command);
} catch (Exception e) {
error += "ERROR. Command could not be parsed: " + e.getMessage();
}
if (error.length() == 0) {
OpenMathBase result = null;
try {
String token = client.compute(omb);
while (!client.resultAvailable(token)) {
try {
Thread.sleep(80);
} catch (Exception e) {
}
}
result = client.getResult(token);
} catch (Exception oops) {
error = "ERROR. Parsing or Computing failed.";
}
if (error.length() == 0) {
if (outputFormat.equalsIgnoreCase("ALL")) {
res =
"POPCORN: "
+ result.toPopcorn()
+ "\n\nLATEX: "
+ result.toLatex()
+ "\n\nOPENMATH: "
+ result.toXml()
+ "\n\n";
} else if (outputFormat.equalsIgnoreCase("XML")) {
res = result.toXml();
} else if (outputFormat.equalsIgnoreCase("POPCORN")) {
res = result.toPopcorn();
} else if (outputFormat.equalsIgnoreCase("LATEX")) {
res = result.toLatex();
} else {
error = "Illegal output format: " + outputFormat;
}
}
}
} else if (path.equals("/print")) {
String command = request.getParameter("command");
if (null == command) {
error += "ERROR. Must specify 'command'. ";
}
String outputFormat = request.getParameter("outputFormat");
if (null == outputFormat) {
outputFormat = "xml";
}
OpenMathBase omb = null;
try {
omb = OpenMathBase.parse(command);
} catch (Exception e) {
error += "ERROR. Command could not be parsed: " + e.getMessage();
}
if (error.length() == 0) {
OpenMathBase result = omb;
if (error.length() == 0) {
if (outputFormat.equalsIgnoreCase("ALL")) {
res =
"POPCORN: "
+ result.toPopcorn()
+ "\n\nLATEX: "
+ result.toLatex()
+ "\n\nOPENMATH: "
+ result.toXml()
+ "\n\n";
} else if (outputFormat.equalsIgnoreCase("XML")) {
res = result.toXml();
} else if (outputFormat.equalsIgnoreCase("POPCORN")) {
res = result.toPopcorn();
} else if (outputFormat.equalsIgnoreCase("LATEX")) {
res = result.toLatex();
} else {
error = "Illegal output format: " + outputFormat;
}
}
}
} else {
response.sendRedirect(HOME);
return;
}
if (res != null && error.length() == 0) {
response.setContentType("text/html");
response.setStatus(HttpServletResponse.SC_OK);
response.getWriter().println(res);
((Request) request).setHandled(true);
} else if (res != null && error.length() > 0) {
response.setContentType("text/html");
response.setStatus(HttpServletResponse.SC_OK);
response.getWriter().println(error);
((Request) request).setHandled(true);
} else {
response.setContentType("text/html");
response.setStatus(HttpServletResponse.SC_OK);
response.getWriter().println("ERROR. Was war denn das?!");
((Request) request).setHandled(true);
}
}
public Wupslet() {
w = Wupsifer.getInstance();
}