X-Git-Url: https://git.pterodactylus.net/?a=blobdiff_plain;f=src%2Fmain%2Fjava%2Fnet%2Fpterodactylus%2Freactor%2Ftriggers%2FFileExistenceTrigger.java;h=f3464e94efcfa7ad0449a7e6dfbc216b64b0b7f4;hb=9cd054fb2fec1c2a1f0f24b3b88f477720563094;hp=2be86ea6ee0783b821953c0c79869f4788f07458;hpb=2447518c3e5f8269f12f772c5d11dca10b3967f2;p=rhynodge.git

diff --git a/src/main/java/net/pterodactylus/reactor/triggers/FileExistenceTrigger.java b/src/main/java/net/pterodactylus/reactor/triggers/FileExistenceTrigger.java
index 2be86ea..f3464e9 100644
--- a/src/main/java/net/pterodactylus/reactor/triggers/FileExistenceTrigger.java
+++ b/src/main/java/net/pterodactylus/reactor/triggers/FileExistenceTrigger.java
@@ -17,15 +17,20 @@
 
 package net.pterodactylus.reactor.triggers;
 
+import net.pterodactylus.reactor.State;
 import net.pterodactylus.reactor.Trigger;
+import net.pterodactylus.reactor.output.DefaultOutput;
+import net.pterodactylus.reactor.output.Output;
 import net.pterodactylus.reactor.states.FileState;
 
+import com.google.common.base.Preconditions;
+
 /**
  * A trigger that detects changes in the existence of a file.
  *
  * @author <a href="mailto:bombe@pterodactylus.net">David ‘Bombe’ Roden</a>
  */
-public class FileExistenceTrigger implements Trigger<FileState> {
+public class FileExistenceTrigger implements Trigger {
 
 	//
 	// TRIGGER METHODS
@@ -35,8 +40,18 @@ public class FileExistenceTrigger implements Trigger<FileState> {
 	 * {@inheritDoc}
 	 */
 	@Override
-	public boolean triggers(FileState previousState, FileState currentState) {
-		return previousState.exists() != currentState.exists();
+	public boolean triggers(State previousState, State currentState) {
+		Preconditions.checkState(previousState instanceof FileState, "previousState is not a FileState");
+		Preconditions.checkState(currentState instanceof FileState, "currentState is not a FileState");
+		return ((FileState) previousState).exists() != ((FileState) currentState).exists();
+	}
+
+	/**
+	 * {@inheritDoc}
+	 */
+	@Override
+	public Output output() {
+		return new DefaultOutput("File appeared/disappeared").addText("text/plain", "File appeared/disappeared").addText("text/html", "<div>File appeared/disappeared</div>");
 	}
 
 }