From 045bbf7badb6710ead966598b74c0325e788463c Mon Sep 17 00:00:00 2001
From: =?utf8?q?David=20=E2=80=98Bombe=E2=80=99=20Roden?=
 <bombe@pterodactylus.net>
Date: Fri, 8 Mar 2024 12:32:29 +0100
Subject: [PATCH] =?utf8?q?=E2=99=BB=EF=B8=8F=20Convert=20SavoyTicketsFilte?=
 =?utf8?q?r=20to=20Kotlin=20class?=
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---
 .../filters/webpages/savoy/SavoyTicketsFilter.java | 35 ----------------------
 .../filters/webpages/savoy/SavoyTicketsFilter.kt   | 24 +++++++++++++++
 2 files changed, 24 insertions(+), 35 deletions(-)
 delete mode 100644 src/main/java/net/pterodactylus/rhynodge/filters/webpages/savoy/SavoyTicketsFilter.java
 create mode 100644 src/main/kotlin/net/pterodactylus/rhynodge/filters/webpages/savoy/SavoyTicketsFilter.kt

diff --git a/src/main/java/net/pterodactylus/rhynodge/filters/webpages/savoy/SavoyTicketsFilter.java b/src/main/java/net/pterodactylus/rhynodge/filters/webpages/savoy/SavoyTicketsFilter.java
deleted file mode 100644
index 5fa2fff..0000000
--- a/src/main/java/net/pterodactylus/rhynodge/filters/webpages/savoy/SavoyTicketsFilter.java
+++ /dev/null
@@ -1,35 +0,0 @@
-package net.pterodactylus.rhynodge.filters.webpages.savoy;
-
-import net.pterodactylus.rhynodge.Filter;
-import net.pterodactylus.rhynodge.State;
-import net.pterodactylus.rhynodge.states.HtmlState;
-import org.apache.log4j.Logger;
-import org.jetbrains.annotations.NotNull;
-
-import java.util.Collection;
-
-import static com.google.common.base.Preconditions.checkArgument;
-import static java.util.Collections.emptySet;
-
-/**
- * {@link Filter} implementation that creates a list of movies running at the
- * Savoy theatre in Hamburg.
- *
- * @author <a href="mailto:bombe@pterodactylus.net">David ‘Bombe’ Roden</a>
- */
-public class SavoyTicketsFilter implements Filter {
-
-	private static final MovieExtractor movieExtractor = new MovieExtractor();
-
-	@NotNull
-	@Override
-	public State filter(@NotNull State state) {
-		checkArgument(state instanceof HtmlState, "state must be HTML");
-
-		HtmlState htmlState = (HtmlState) state;
-		Collection<Movie> movies = movieExtractor.getMovies(htmlState.document());
-		Logger.getLogger(SavoyTicketsFilter.class).debug("Parsed Movies: " + movies);
-		return new MovieState(movies, emptySet(), false);
-	}
-
-}
diff --git a/src/main/kotlin/net/pterodactylus/rhynodge/filters/webpages/savoy/SavoyTicketsFilter.kt b/src/main/kotlin/net/pterodactylus/rhynodge/filters/webpages/savoy/SavoyTicketsFilter.kt
new file mode 100644
index 0000000..10ab93c
--- /dev/null
+++ b/src/main/kotlin/net/pterodactylus/rhynodge/filters/webpages/savoy/SavoyTicketsFilter.kt
@@ -0,0 +1,24 @@
+package net.pterodactylus.rhynodge.filters.webpages.savoy
+
+import net.pterodactylus.rhynodge.Filter
+import net.pterodactylus.rhynodge.State
+import net.pterodactylus.rhynodge.states.HtmlState
+import org.apache.log4j.Logger
+
+/**
+ * [Filter] implementation that creates a list of movies running at the
+ * Savoy theatre in Hamburg.
+ */
+class SavoyTicketsFilter : Filter {
+
+	override fun filter(state: State) =
+		requireNotNull(state as? HtmlState) { "state must be HTML" }
+			.document()
+			.let(movieExtractor::getMovies)
+			.also { logger.debug("Parsed Movies: $it") }
+			.let { MovieState(it, emptySet(), false) }
+
+}
+
+private val logger = Logger.getLogger(SavoyTicketsFilter::class.java)
+private val movieExtractor = MovieExtractor()
-- 
2.7.4