ReplyLoader.java

package com.airlocksoftware.hackernews.loader;

import java.io.IOException;

import org.apache.commons.lang3.StringUtils;
import org.jsoup.Connection.Method;
import org.jsoup.nodes.Element;

import android.content.Context;
import android.support.v4.content.AsyncTaskLoader;

import com.airlocksoftware.hackernews.data.ConnectionManager;
import com.airlocksoftware.hackernews.data.UserPrefs;
import com.airlocksoftware.hackernews.model.Result;

/** Handles sending replies to Comments and Stories. **/
public class ReplyLoader extends AsyncTaskLoader<Result> {

	String mText;
	long mId = -1;

	private static final String REPLY_EXTENSION = "/r";

	/** no data passed, not ready to send **/
	public ReplyLoader(Context context) {
		super(context);
	}

	public ReplyLoader(Context context, long id, String text) {
		super(context);
		mId = id;
		mText = text;
	}

	@Override
	public Result loadInBackground() {
		// no data passed, not ready to send
		if (mId == -1 || StringUtils.isBlank(mText)) return Result.EMPTY;

		Result result = Result.FAILURE; // default

		try {
			UserPrefs data = new UserPrefs(getContext());
			Element replyInput = getReplyInput(data);
			String replyFnid = replyInput.attr("value");
			String response = sendReply(data, replyFnid);
			if (StringUtils.isNotBlank(response)) result = Result.SUCCESS;

		} catch (Exception e) {
			// any exception here probably means we have NO_CONNECTION or there's an error with the website.
			e.printStackTrace();
		}

		return result;
	}

	/** POSTS the reply**/
	private String sendReply(UserPrefs data, String replyFnid) throws IOException {
		return ConnectionManager.authConnect(REPLY_EXTENSION, data.getUserCookie())
														.data("fnid", replyFnid)
														.data("text", mText)
														.method(Method.POST)
														.execute()
														.parse()
														.text();
	}

	private Element getReplyInput(UserPrefs data) throws IOException {
		return ConnectionManager.authConnect(ConnectionManager.itemIdToUrlExtension(mId), data.getUserCookie())
														.get()
														.select("input[name=fnid]")
														.first();
	}

	/**
	 * Handles a request to start the Loader.
	 */
	@Override
	protected void onStartLoading() {
		forceLoad();
	}
}