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/*
* Copyright 2014 Jesse Morgan
*/
package com.p4square.grow.frontend;
import java.io.IOException;
import java.util.Arrays;
import java.util.HashSet;
import org.restlet.data.Form;
import org.restlet.data.Status;
import org.restlet.representation.Representation;
import org.restlet.resource.ServerResource;
import org.apache.log4j.Logger;
import com.p4square.grow.config.Config;
import com.p4square.grow.model.Message;
import com.p4square.grow.model.UserRecord;
/**
* This resource handles user interactions with the feed.
*/
public class FeedResource extends ServerResource {
private static final Logger LOG = Logger.getLogger(FeedResource.class);
private static final HashSet<String> TOPICS = new HashSet(Arrays.asList("introduction", "seeker", "believer",
"disciple", "teacher"));
private Config mConfig;
private FeedData mFeedData;
// Fields pertaining to this request.
protected String mTopic;
protected String mThread;
@Override
public void doInit() {
super.doInit();
GrowFrontend growFrontend = (GrowFrontend) getApplication();
mConfig = growFrontend.getConfig();
mFeedData = new FeedData(getContext(), mConfig);
mTopic = getAttribute("topic");
if (mTopic != null) {
mTopic = mTopic.trim();
}
mThread = getAttribute("thread");
if (mThread != null) {
mThread = mThread.trim();
}
}
/**
* Create a new MessageThread.
*/
@Override
protected Representation post(Representation entity) {
try {
if (mTopic == null || mTopic.length() == 0 || !TOPICS.contains(mTopic)) {
setStatus(Status.CLIENT_ERROR_NOT_FOUND);
return ErrorPage.NOT_FOUND;
}
Form form = new Form(entity);
String question = form.getFirstValue("question");
Message message = new Message();
message.setMessage(question);
UserRecord user = new UserRecord(getRequest().getClientInfo().getUser());
message.setAuthor(user);
if (mThread != null && mThread.length() != 0) {
// Post a response
mFeedData.createResponse(mTopic, mThread, message);
} else {
// Post a new thread
mFeedData.createThread(mTopic, message);
}
/*
* Can't trust the referrer, so we'll send them to the
* appropriate part of the training page
* TODO: This could be better done.
*/
String nextPage = mConfig.getString("dynamicRoot", "");
nextPage += "/account/training/" + mTopic;
getResponse().redirectSeeOther(nextPage);
return null;
} catch (IOException e) {
LOG.fatal("Could not save message: " + e.getMessage(), e);
setStatus(Status.SERVER_ERROR_INTERNAL);
return ErrorPage.BACKEND_ERROR;
}
}
}
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