From f5f875eb116c09844bacc8d875df87af6dbbeea3 Mon Sep 17 00:00:00 2001
From: Jordan <dordsor21@gmail.com>
Date: Thu, 7 Dec 2023 17:29:10 +0000
Subject: [PATCH] feat: add HasOwner PlotFilter filter (#4259)

* feat: add HasOwner PlotFilter filter
 - closes #3831

* change since to TODO

* Address feedback

---------

Co-authored-by: Alexander Brandes <mc.cache@web.de>
---
 .../core/util/query/HasOwnerFilter.java       | 31 +++++++++++++++++++
 .../core/util/query/PlotQuery.java            | 10 ++++++
 2 files changed, 41 insertions(+)
 create mode 100644 Core/src/main/java/com/plotsquared/core/util/query/HasOwnerFilter.java

diff --git a/Core/src/main/java/com/plotsquared/core/util/query/HasOwnerFilter.java b/Core/src/main/java/com/plotsquared/core/util/query/HasOwnerFilter.java
new file mode 100644
index 000000000..a0da8eb3c
--- /dev/null
+++ b/Core/src/main/java/com/plotsquared/core/util/query/HasOwnerFilter.java
@@ -0,0 +1,31 @@
+/*
+ * PlotSquared, a land and world management plugin for Minecraft.
+ * Copyright (C) IntellectualSites <https://intellectualsites.com>
+ * Copyright (C) IntellectualSites team and contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+package com.plotsquared.core.util.query;
+
+import com.plotsquared.core.plot.Plot;
+import org.checkerframework.checker.nullness.qual.NonNull;
+
+class HasOwnerFilter implements PlotFilter {
+
+    @Override
+    public boolean accepts(final @NonNull Plot plot) {
+        return plot.hasOwner();
+    }
+
+}
diff --git a/Core/src/main/java/com/plotsquared/core/util/query/PlotQuery.java b/Core/src/main/java/com/plotsquared/core/util/query/PlotQuery.java
index de3dc94ad..22063d9f6 100644
--- a/Core/src/main/java/com/plotsquared/core/util/query/PlotQuery.java
+++ b/Core/src/main/java/com/plotsquared/core/util/query/PlotQuery.java
@@ -219,6 +219,16 @@ public final class PlotQuery implements Iterable<Plot> {
         return this.addFilter(new OwnersIncludeFilter(owner.getUUID()));
     }
 
+    /**
+     * Query only for plots that have an owner
+     *
+     * @return The query instance
+     * @since TODO
+     */
+
+    public @NonNull PlotQuery hasOwner() {
+        return this.addFilter(new HasOwnerFilter());
+    }
     /**
      * Query for plots with a specific alias
      *