Update checkers

Author: dkim19375

.idea/uiDesigner.xml

@@ -3,7 +3,7 @@ plugins {
 }
 
 group 'me.dkim19375'
-version '1.0.0'
+version '1.1.0'
 
 repositories {
     mavenCentral()

build.gradle

@@ -0,0 +1,57 @@
+package me.dkim19375.dkim19375core.external;
+
+import com.google.common.io.ByteStreams;
+import com.google.gson.JsonElement;
+import com.google.gson.JsonObject;
+import com.google.gson.JsonParser;
+import org.bukkit.Bukkit;
+import org.bukkit.plugin.java.JavaPlugin;
+import org.bukkit.util.Consumer;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.net.URL;
+
+public class JsonUtils {
+    private JsonUtils() {
+
+    }
+
+    public static void getJson(final Consumer<JsonObject> consumer, final Consumer<IOException> exception, URL url, JavaPlugin plugin) {
+        Bukkit.getScheduler().runTaskAsynchronously(plugin, () -> {
+            String string;
+            try {
+                InputStream inputStream = url.openStream();
+                //noinspection UnstableApiUsage
+                byte[] byteArray = ByteStreams.toByteArray(inputStream);
+                string = new String(byteArray);
+            } catch (IOException e) {
+                exception.accept(e);
+                return;
+            }
+            final JsonParser parse = new JsonParser();
+            final JsonElement json = parse.parse(string);
+            final JsonObject jsonObject = json.getAsJsonObject();
+            consumer.accept(jsonObject);
+        });
+    }
+
+    public static void getJson(final Consumer<JsonObject> consumer, final Consumer<IOException> exception, String url, JavaPlugin plugin) {
+        Bukkit.getScheduler().runTaskAsynchronously(plugin, () -> {
+            String string;
+            try {
+                InputStream inputStream = new URL(url).openStream();
+                //noinspection UnstableApiUsage
+                byte[] byteArray = ByteStreams.toByteArray(inputStream);
+                string = new String(byteArray);
+            } catch (IOException e) {
+                exception.accept(e);
+                return;
+            }
+            final JsonParser parse = new JsonParser();
+            final JsonElement json = parse.parse(string);
+            final JsonObject jsonObject = json.getAsJsonObject();
+            consumer.accept(jsonObject);
+        });
+    }
+}

src/main/java/me/dkim19375/dkim19375core/external/JsonUtils.java

@@ -0,0 +1,69 @@
+package me.dkim19375.dkim19375core.external;
+
+import com.google.gson.JsonElement;
+import org.bukkit.Bukkit;
+import org.bukkit.plugin.java.JavaPlugin;
+import org.bukkit.util.Consumer;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.net.URL;
+import java.util.Scanner;
+import java.util.concurrent.CompletableFuture;
+
+public class UpdateChecker {
+    private final String resourceId;
+    private final URL url;
+    private final JavaPlugin plugin;
+
+    public UpdateChecker(final String resourceId, final URL url, final JavaPlugin plugin) {
+        this.resourceId = resourceId;
+        this.url = url;
+        this.plugin = plugin;
+    }
+
+    public UpdateChecker(final String resourceId, final JavaPlugin plugin) {
+        this.resourceId = resourceId;
+        url = null;
+        this.plugin = plugin;
+    }
+
+    public UpdateChecker(final URL url, final JavaPlugin plugin) {
+        resourceId = null;
+        this.url = url;
+        this.plugin = plugin;
+    }
+
+    public void getSpigotVersion(final Consumer<String> version, final Consumer<IOException> exception) {
+        Bukkit.getScheduler().runTaskAsynchronously(this.plugin, () -> {
+            try (InputStream inputStream = new URL("https://api.spigotmc.org/legacy/update.php?resource=" + this.resourceId).openStream();
+                Scanner scanner = new Scanner(inputStream)) {
+                if (scanner.hasNext()) {
+                    version.accept(scanner.next());
+                }
+            } catch (IOException e) {
+                exception.accept(e);
+            }
+        });
+    }
+    public void getFromRaw(final Consumer<String> version, final Consumer<IOException> exception) {
+        Bukkit.getScheduler().runTaskAsynchronously(this.plugin, () -> {
+            try (InputStream inputStream = url.openStream();
+                 Scanner scanner = new Scanner(inputStream)) {
+                if (scanner.hasNext()) {
+                    version.accept(scanner.next());
+                }
+            } catch (IOException e) {
+                exception.accept(e);
+            }
+        });
+    }
+
+    public void getFromGithubJson(final Consumer<String> version, final Consumer<IOException> exception) {
+        JsonUtils.getJson((j) -> {
+            JsonElement element = j.get("tag_name");
+            String tag = element.getAsString();
+            version.accept(tag);
+        }, exception, url, plugin);
+    }
+}