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/*
* Copyright 2013 Jesse Morgan
*/
package com.p4square.grow.frontend;
import java.util.HashMap;
import java.util.Map;
import freemarker.template.Template;
import org.restlet.data.Form;
import org.restlet.data.MediaType;
import org.restlet.data.Status;
import org.restlet.ext.jackson.JacksonRepresentation;
import org.restlet.representation.Representation;
import org.restlet.resource.ServerResource;
import org.apache.log4j.Logger;
import com.p4square.fmfacade.json.JsonRequestClient;
import com.p4square.fmfacade.json.JsonResponse;
import com.p4square.grow.config.Config;
/**
* VideosResource returns JSON blobs with video information and records watched
* videos.
*
* @author Jesse Morgan <jesse@jesterpm.net>
*/
public class VideosResource extends ServerResource {
private static Logger cLog = Logger.getLogger(VideosResource.class);
private Config mConfig;
private JsonRequestClient mJsonClient;
// Fields pertaining to this request.
private String mChapter;
private String mVideoId;
private String mUserId;
@Override
public void doInit() {
super.doInit();
GrowFrontend growFrontend = (GrowFrontend) getApplication();
mConfig = growFrontend.getConfig();
mJsonClient = new JsonRequestClient(getContext().getClientDispatcher());
mChapter = getAttribute("chapter");
mVideoId = getAttribute("videoId");
mUserId = getRequest().getClientInfo().getUser().getIdentifier();
}
/**
* Fetch a video record from the backend.
*/
@Override
protected Representation get() {
try {
JsonResponse response = backendGet("/training/" + mChapter + "/videos/" + mVideoId);
if (response.getStatus().isSuccess()) {
return new JacksonRepresentation<Map>(response.getMap());
} else {
setStatus(response.getStatus());
return null;
}
} catch (Exception e) {
cLog.fatal("Could not render page: " + e.getMessage(), e);
setStatus(Status.SERVER_ERROR_INTERNAL);
return null;
}
}
/**
* Mark a video as completed.
*/
@Override
protected Representation post(Representation entity) {
Map<String, Object> data = new HashMap<String, Object>();
data.put("completed", "t");
JsonResponse response = backendPut("/accounts/" + mUserId + "/training/videos/" + mVideoId, data);
if (!response.getStatus().isSuccess()) {
// Something went wrong talking to the backend, error out.
cLog.fatal("Error recording completed video " + response.getStatus());
setStatus(Status.SERVER_ERROR_INTERNAL);
return ErrorPage.BACKEND_ERROR;
}
setStatus(Status.SUCCESS_NO_CONTENT);
return null;
}
/**
* @return The backend endpoint URI
*/
private String getBackendEndpoint() {
return mConfig.getString("backendUri", "riap://component/backend");
}
/**
* Helper method to send a GET to the backend.
*/
private JsonResponse backendGet(final String uri) {
cLog.debug("Sending backend GET " + uri);
final JsonResponse response = mJsonClient.get(getBackendEndpoint() + uri);
final Status status = response.getStatus();
if (!status.isSuccess() && !Status.CLIENT_ERROR_NOT_FOUND.equals(status)) {
cLog.warn("Error making backend request for '" + uri + "'. status = " + response.getStatus().toString());
}
return response;
}
private JsonResponse backendPut(final String uri, final Map data) {
cLog.debug("Sending backend PUT " + uri);
final JsonResponse response = mJsonClient.put(getBackendEndpoint() + uri, data);
final Status status = response.getStatus();
if (!status.isSuccess() && !Status.CLIENT_ERROR_NOT_FOUND.equals(status)) {
cLog.warn("Error making backend request for '" + uri + "'. status = " + response.getStatus().toString());
}
return response;
}
}
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