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/*
* Copyright 2013 Jesse Morgan
*/
package com.p4square.grow.frontend;
import java.util.Map;
import freemarker.template.Template;
import org.restlet.data.MediaType;
import org.restlet.data.Status;
import org.restlet.representation.Representation;
import org.restlet.representation.StringRepresentation;
import org.restlet.ext.freemarker.TemplateRepresentation;
import org.apache.log4j.Logger;
import com.p4square.fmfacade.FreeMarkerPageResource;
import com.p4square.fmfacade.json.JsonRequestClient;
import com.p4square.fmfacade.json.JsonResponse;
import com.p4square.fmfacade.json.ClientException;
import com.p4square.grow.config.Config;
import com.p4square.grow.model.TrainingRecord;
import com.p4square.grow.provider.TrainingRecordProvider;
import com.p4square.grow.provider.Provider;
/**
* This resource displays the transitional page between chapters.
*
* @author Jesse Morgan <jesse@jesterpm.net>
*/
public class ChapterCompletePage extends FreeMarkerPageResource {
private static final Logger LOG = Logger.getLogger(ChapterCompletePage.class);
private GrowFrontend mGrowFrontend;
private Config mConfig;
private JsonRequestClient mJsonClient;
private Provider<String, TrainingRecord> mTrainingRecordProvider;
private String mUserId;
private String mChapter;
@Override
public void doInit() {
super.doInit();
mGrowFrontend = (GrowFrontend) getApplication();
mConfig = mGrowFrontend.getConfig();
mJsonClient = new JsonRequestClient(getContext().getClientDispatcher());
mTrainingRecordProvider = new TrainingRecordProvider<String>(new JsonRequestProvider<TrainingRecord>(getContext().getClientDispatcher(), TrainingRecord.class)) {
@Override
public String makeKey(String userid) {
return getBackendEndpoint() + "/accounts/" + userid + "/training";
}
};
mUserId = getRequest().getClientInfo().getUser().getIdentifier();
mChapter = getAttribute("chapter");
}
/**
* Return the login page.
*/
@Override
protected Representation get() {
Template t = mGrowFrontend.getTemplate("templates/stage-complete.ftl");
try {
if (t == null) {
setStatus(Status.CLIENT_ERROR_NOT_FOUND);
return ErrorPage.TEMPLATE_NOT_FOUND;
}
Map<String, Object> root = getRootObject();
// Get the training summary
TrainingRecord trainingRecord = mTrainingRecordProvider.get(mUserId);
if (trainingRecord == null) {
// Wait. What? Everyone has a training record...
setStatus(Status.SERVER_ERROR_INTERNAL);
return new ErrorPage("Could not retrieve your training record.");
}
// Verify they completed the chapter.
Map<String, Boolean> chapters = trainingRecord.getPlaylist().getChapterStatuses();
Boolean completed = chapters.get(mChapter);
if (completed == null || !completed) {
// Redirect back to training page...
String nextPage = mConfig.getString("dynamicRoot", "");
nextPage += "/account/training/" + mChapter;
getResponse().redirectSeeOther(nextPage);
return new StringRepresentation("Redirecting to " + nextPage);
}
// Find the next chapter
String nextChapter = null;
{
int min = Integer.MAX_VALUE;
for (Map.Entry<String, Boolean> chapter : chapters.entrySet()) {
int index = chapterIndex(chapter.getKey());
if (!chapter.getValue() && index < min) {
min = index;
nextChapter = chapter.getKey();
}
}
}
// Skip the chapter complete message for "Introduction"
if ("introduction".equals(mChapter)) {
String nextPage = mConfig.getString("dynamicRoot", "");
nextPage += "/account/training/" + nextChapter;
getResponse().redirectSeeOther(nextPage);
return new StringRepresentation("Redirecting to " + nextPage);
}
root.put("stage", mChapter);
root.put("nextstage", nextChapter);
return new TemplateRepresentation(t, root, MediaType.TEXT_HTML);
} catch (Exception e) {
LOG.fatal("Could not render page: " + e.getMessage(), e);
setStatus(Status.SERVER_ERROR_INTERNAL);
return ErrorPage.RENDER_ERROR;
}
}
/**
* @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) {
LOG.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)) {
LOG.warn("Error making backend request for '" + uri + "'. status = " + response.getStatus().toString());
}
return response;
}
int chapterIndex(String chapter) {
if ("teacher".equals(chapter)) {
return 4;
} else if ("disciple".equals(chapter)) {
return 3;
} else if ("believer".equals(chapter)) {
return 2;
} else if ("seeker".equals(chapter)) {
return 1;
} else {
return Integer.MAX_VALUE;
}
}
}
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