v3.1.1

.github/CODEOWNERS

@@ -0,0 +1 @@
+*   joshua@hypera.dev

.github/dependabot.yml

@@ -0,0 +1,10 @@
+version: 2
+updates:
+  - package-ecosystem: "maven"
+    directory: "/"
+    schedule:
+      interval: "daily"
+  - package-ecosystem: "github-actions"
+    directory: "/"
+    schedule:
+      interval: "daily"

.github/workflows/publish-release.yml

@@ -10,7 +10,7 @@ jobs:
       - name: Set up Java
         uses: actions/setup-java@v2
         with:
-          java-version: '8'
+          java-version: '11'
           distribution: 'adopt'
           server-id: hypera-releases
           server-username: MAVEN_USERNAME

SECURITY.md

@@ -4,6 +4,7 @@
 
 | Version | Supported          |
 | :------ | -----------------: |
+| 3.x.x   | :white_check_mark: |
 | 2.0.x   | :white_check_mark: |
 | < 2.0   | :x:                |
 

pom.xml

@@ -22,7 +22,7 @@
 
     <groupId>dev.hypera</groupId>
     <artifactId>UpdateLib</artifactId>
-    <version>2.1.2</version>
+    <version>3.1.2-SNAPSHOT</version>
     <packaging>jar</packaging>
 
     <name>UpdateLib</name>
@@ -113,7 +113,7 @@
     </build>
 
     <dependencies>
-        <!-- To read and use the Spigot API -->
+        <!-- JSON-Simple -->
         <dependency>
             <groupId>com.googlecode.json-simple</groupId>
             <artifactId>json-simple</artifactId>
@@ -126,13 +126,6 @@
                 </exclusion>
             </exclusions>
         </dependency>
-
-        <!-- To compare semver -->
-        <dependency>
-            <groupId>org.apache.maven</groupId>
-            <artifactId>maven-artifact</artifactId>
-            <version>3.6.3</version>
-        </dependency>
     </dependencies>
 
 </project>

src/main/java/dev/hypera/updatelib/UpdateLib.java

@@ -0,0 +1,135 @@
+/*
+ * Copyright (c) 2021 Joshua Sing <joshua@hypera.dev>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+package dev.hypera.updatelib;
+
+import dev.hypera.updatelib.annotations.RunAsync;
+import dev.hypera.updatelib.checkers.UpdateChecker;
+import dev.hypera.updatelib.data.CheckData;
+import dev.hypera.updatelib.objects.UpdateStatus;
+import dev.hypera.updatelib.objects.UpdateStatusBuilder;
+
+import java.util.Timer;
+import java.util.TimerTask;
+import java.util.function.Consumer;
+
+public class UpdateLib {
+
+	private final static String VERSION = "3.1.2-SNAPSHOT"; // Current UpdateLib version.
+
+	private final long resourceId;
+	private final String currentVersion;
+	private final int connectionTimeout;
+
+	private final UpdateChecker updateChecker;
+
+	private final Consumer<UpdateStatus> completeAction;
+	private final Consumer<Throwable> errorHandler;
+
+	private UpdateStatus lastStatus = null;
+	private long lastCheck = 0L;
+
+	/**
+	 * UpdateLib Constructor - Used internally by UpdateLib.
+	 *
+	 * @param resourceId             Resource ID.
+	 * @param currentVersion         Current version of the Resource.
+	 * @param repeatingChecksEnabled If UpdateLib should check for updates periodically.
+	 * @param interval               How often UpdateLib should check for updates.
+	 * @param connectionTimeout      The amount of milliseconds UpdateLib should wait before timing out on requests.
+	 * @param updateChecker          {@link UpdateChecker} to be used by UpdateLib to check for updates.
+	 * @param completeAction         Action to run after UpdateLib has checked for an update.
+	 * @param errorHandler           Consumer to run if UpdateLib encounters an exception.
+	 */
+	protected UpdateLib(long resourceId, String currentVersion, boolean repeatingChecksEnabled, long interval, int connectionTimeout, UpdateChecker updateChecker, Consumer<UpdateStatus> completeAction, Consumer<Throwable> errorHandler) {
+		this.resourceId = resourceId;
+		this.currentVersion = currentVersion;
+		this.connectionTimeout = connectionTimeout;
+		this.updateChecker = updateChecker;
+		this.completeAction = completeAction;
+		this.errorHandler = errorHandler;
+
+		Thread thread = new Thread(this::checkNow);
+		thread.setName("UpdateLib-" + thread.getId());
+		thread.start();
+
+		if(repeatingChecksEnabled) {
+			new Timer().schedule(new TimerTask() {
+				@Override
+				public void run() {
+					checkNow();
+				}
+			}, interval);
+		}
+	}
+
+
+	/**
+	 * Start an update check. It's recommended to only run this asynchronously as it may take time to fetch data from
+	 * the API.
+	 *
+	 * @return Response - Instance of {@link UpdateStatus}
+	 * @since 2.0.0-SNAPSHOT
+	 */
+	@RunAsync
+	public UpdateStatus checkNow() {
+		try {
+			lastStatus = updateChecker.check(new CheckData(resourceId, currentVersion, connectionTimeout));
+			lastCheck = System.currentTimeMillis();
+			if(null != completeAction)
+				completeAction.accept(lastStatus);
+		} catch (Exception ex) {
+			if(null == errorHandler)
+				ex.printStackTrace();
+			else
+				errorHandler.accept(ex);
+		}
+
+		return lastStatus;
+	}
+
+	/**
+	 * Get last stored {@link UpdateStatus}. If UpdateLib hasn't checked for an update or the last check failed, this
+	 * will return null.
+	 *
+	 * @return Last stored {@link UpdateStatus}
+	 * @since 3.0.0-SNAPSHOT
+	 */
+	public UpdateStatus getLastStatus() {
+		return lastStatus;
+	}
+
+	/**
+	 * Get the last time UpdateLib checked for updates.
+	 *
+	 * @return Last check time in milliseconds.
+	 * @since 2.0.0-SNAPSHOT
+	 */
+	public long getLastCheck() {
+		return lastCheck;
+	}
+
+	/**
+	 * Get the current version of UpdateLib.
+	 *
+	 * @return Current version of UpdateLib.
+	 * @since 2.1.0-SNAPSHOT
+	 */
+	public static String getVersion() {
+		return VERSION;
+	}
+
+}

src/main/java/dev/hypera/updatelib/UpdateLibBuilder.java

@@ -16,33 +16,51 @@
 
 package dev.hypera.updatelib;
 
-import dev.hypera.updatelib.internal.UpdateLib;
-import dev.hypera.updatelib.internal.UpdateResponse;
+import dev.hypera.updatelib.annotations.Builder;
+import dev.hypera.updatelib.checkers.UpdateChecker;
+import dev.hypera.updatelib.checkers.impl.SpigotUpdateChecker;
+import dev.hypera.updatelib.objects.UpdateStatus;
+import dev.hypera.updatelib.utils.Check;
 
+import java.util.concurrent.TimeUnit;
 import java.util.function.Consumer;
 
-@SuppressWarnings("unused")
+@Builder
 public class UpdateLibBuilder {
 
 	private final long resourceId;
 	private final String currentVersion;
 
 	private boolean repeatingChecksEnabled = true;
-	private long checkInterval = 2 * (60 * (60 * 1000)); // 2 Hours
-	private int connectionTimeout = 5000; // 5 Seconds
+	private long checkInterval = 2 * (60 * (60 * 1000)); // Defaults to 2 hours.
+	private int connectionTimeout = 10000; // Defaults to 10 seconds.
 
-	private Consumer<UpdateResponse> consumer = null;
+	/**
+	 * Defaults to using {@link SpigotUpdateChecker}.
+	 */
+	private UpdateChecker updateChecker = new SpigotUpdateChecker();
+
+	private Consumer<UpdateStatus> completeAction = null;
+	private Consumer<Throwable> errorHandler = null; // If error handler is not provided, stack traces will be printed by UpdateLib.
 
+
+	/**
+	 * UpdateLibBuilder Constructor - Used internally by UpdateLib.
+	 *
+	 * @param currentVersion Current version of the resource.
+	 * @param resourceId     Resource ID.
+	 */
 	private UpdateLibBuilder(String currentVersion, long resourceId) {
+		Check.notNull("currentVersion", currentVersion);
 		this.currentVersion = currentVersion;
 		this.resourceId = resourceId;
 	}
 
 	/**
-	 * Creates a new instance of {@link UpdateLibBuilder}.
+	 * Create a new instance of {@link UpdateLibBuilder}
 	 *
 	 * @param currentVersion Current version of the resource.
-	 * @param resourceId     SpigotMC Resource Id.
+	 * @param resourceId     Resource ID.
 	 *
 	 * @return Instance of {@link UpdateLibBuilder}
 	 * @since 2.0.0-SNAPSHOT
@@ -52,11 +70,11 @@ public static UpdateLibBuilder create(String currentVersion, long resourceId) {
 	}
 
 	/**
-	 * Should UpdateLib keep checking for updates? (Time defined by checkInterval)
+	 * Sets if UpdateLib should check for updates periodically.
 	 *
-	 * @param enabled Repeating checks enabled.
+	 * @param enabled If UpdateLib should check for updates periodically.
 	 *
-	 * @see #setCheckInterval(long)
+	 * @return {@link UpdateLibBuilder}
 	 * @since 2.0.0-SNAPSHOT
 	 */
 	public UpdateLibBuilder setRepeatingChecksEnabled(boolean enabled) {
@@ -65,23 +83,26 @@ public UpdateLibBuilder setRepeatingChecksEnabled(boolean enabled) {
 	}
 
 	/**
-	 * How often should UpdateLib check for updates? (Only works if repeatingChecksEnabled is true)
+	 * Sets how often UpdateLib should check for updates? This is only needed if 'repeatingChecksEnabled' is true.
 	 *
-	 * @param interval Interval in milliseconds.
+	 * @param time Time.
+	 * @param unit TimeUnit.
 	 *
+	 * @return {@link UpdateLibBuilder}
 	 * @see #setRepeatingChecksEnabled(boolean)
 	 * @since 2.0.0-SNAPSHOT
 	 */
-	public UpdateLibBuilder setCheckInterval(long interval) {
-		this.checkInterval = interval;
+	public UpdateLibBuilder setCheckInterval(long time, TimeUnit unit) {
+		this.checkInterval = unit.toMillis(time);
 		return this;
 	}
 
 	/**
-	 * After how many milliseconds should we timeout the request to SpigotMC's API?
+	 * Sets the amount of milliseconds UpdateLib should wait before timing out on requests.
 	 *
 	 * @param timeout Timeout in milliseconds.
 	 *
+	 * @return {@link UpdateLibBuilder}
 	 * @since 2.0.0-SNAPSHOT
 	 */
 	public UpdateLibBuilder setConnectionTimeout(int timeout) {
@@ -90,25 +111,52 @@ public UpdateLibBuilder setConnectionTimeout(int timeout) {
 	}
 
 	/**
-	 * Sets a consumer to run after UpdateLib has checked for an update.
+	 * Sets the {@link UpdateChecker} to be used by UpdateLib to check for updates.
+	 *
+	 * @param updateChecker Instance of an {@link UpdateChecker}
+	 *
+	 * @return {@link UpdateLibBuilder}
+	 * @since 3.0.0-SNAPSHOT
+	 */
+	public UpdateLibBuilder setUpdateChecker(UpdateChecker updateChecker) {
+		this.updateChecker = updateChecker;
+		return this;
+	}
+
+	/**
+	 * Sets an action to run after UpdateLib has checked for an update.
 	 *
-	 * @param consumer Consumer to run after checking for an update.
+	 * @param action Consumer to run after checking for an update.
 	 *
+	 * @return {@link UpdateLibBuilder}
 	 * @since 2.1.0-SNAPSHOT
 	 */
-	public UpdateLibBuilder setConsumer(Consumer<UpdateResponse> consumer) {
-		this.consumer = consumer;
+	public UpdateLibBuilder setCompleteAction(Consumer<UpdateStatus> action) {
+		this.completeAction = action;
+		return this;
+	}
+
+	/**
+	 * Sets an consumer to run if UpdateLib encounters an exception.
+	 *
+	 * @param handler Error handler.
+	 *
+	 * @return {@link UpdateLibBuilder}
+	 * @since 3.0.0-SNAPSHOT
+	 */
+	public UpdateLibBuilder setErrorHandler(Consumer<Throwable> handler) {
+		this.errorHandler = handler;
 		return this;
 	}
 
 	/**
-	 * Builds a new instance of {@link UpdateLib}.
+	 * Builds a new instance of {@link UpdateLib}
 	 *
 	 * @return Instance of {@link UpdateLib}
 	 * @since 2.0.0-SNAPSHOT
 	 */
 	public UpdateLib build() {
-		return new UpdateLib(resourceId, currentVersion, repeatingChecksEnabled, checkInterval, connectionTimeout, consumer);
+		return new UpdateLib(resourceId, currentVersion, repeatingChecksEnabled, checkInterval, connectionTimeout, updateChecker, completeAction, errorHandler);
 	}
 
 }