erik/mobibot
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Added FeedReader tests.

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This commit is contained in:
Erik C. Thauvin 2021-05-18 22:12:07 -07:00
parent 082b430ee2
commit 484f11664e
2 changed files with 106 additions and 24 deletions
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57
src/main/kotlin/net/thauvin/erik/mobibot/FeedReader.kt
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@ -31,11 +31,14 @@
*/
package net.thauvin.erik.mobibot
import com.rometools.rome.io.FeedException
import com.rometools.rome.io.SyndFeedInput
import com.rometools.rome.io.XmlReader
import net.thauvin.erik.mobibot.msg.Message
import net.thauvin.erik.mobibot.msg.PublicMessage
import net.thauvin.erik.mobibot.Utils.green
import net.thauvin.erik.mobibot.Utils.helpFormat
import java.net.MalformedURLException
import java.io.IOException
import java.net.URL
/**
@ -49,38 +52,44 @@ class FeedReader(
// URL to fetch
private val url: String
) : Runnable {
// Maximum number of feed items to display
@Suppress("MagicNumber")
private val maxItems = 5
/**
* Fetches the Feed's items.
*/
override fun run() {
with(bot) {
try {
val input = SyndFeedInput()
XmlReader(URL(url)).use { reader ->
val feed = input.build(reader)
val items = feed.entries
if (items.isEmpty()) {
send(sender, "There is currently nothing to view.", false)
} else {
var i = 0
while (i < items.size && i < maxItems) {
send(sender, items[i].title, false)
send(sender, helpFormat(green(items[i].link), false), false)
i++
}
}
readFeed(url).forEach {
send(sender, it)
}
} catch (e: MalformedURLException) {
if (logger.isDebugEnabled) logger.debug("Invalid feed URL.", e)
send(sender, "The feed URL is invalid.", false)
} catch (e: Exception) {
if (logger.isDebugEnabled) logger.debug("Unable to fetch the feed.", e)
} catch (e: FeedException) {
if (logger.isDebugEnabled) logger.debug("Unabled to parse the feed at ${url}", e)
send(sender, "An error has occured while parsing the feed: ${e.message}", false)
} catch (e: IOException) {
if (logger.isDebugEnabled) logger.debug("Unable to fetch the feed at ${url}", e)
send(sender, "An error has occurred while fetching the feed: ${e.message}", false)
}
}
}
companion object {
@JvmStatic
@Throws(FeedException::class, IOException::class)
fun readFeed(url: String, maxItems: Int = 5) : List<Message> {
val messages = mutableListOf<Message>()
val input = SyndFeedInput()
XmlReader(URL(url)).use { reader ->
val feed = input.build(reader)
val items = feed.entries
if (items.isEmpty()) {
messages.add(PublicMessage("There is currently nothing to view."))
} else {
items.take(maxItems).forEach {
messages.add(PublicMessage(it.title))
messages.add(PublicMessage(helpFormat(green(it.link), false)))
}
}
}
return messages
}
}
}