Migrate from Guava Optionals to Java Optionals

Bukkit/src/main/java/com/github/intellectualsites/plotsquared/bukkit/listeners/PlayerEvents.java

@@ -12,7 +12,6 @@ import com.github.intellectualsites.plotsquared.plot.listener.PlayerBlockEventTy
 import com.github.intellectualsites.plotsquared.plot.listener.PlotListener;
 import com.github.intellectualsites.plotsquared.plot.object.*;
 import com.github.intellectualsites.plotsquared.plot.util.*;
-import com.google.common.base.Optional;
 import org.bukkit.Bukkit;
 import org.bukkit.ChatColor;
 import org.bukkit.Material;
@@ -1693,7 +1692,7 @@ import java.util.regex.Pattern;
             return;
         }
         Plot plot = area.getOwnedPlot(location);
-        if (plot == null || !plot.getFlag(Flags.EXPLOSION).or(false)) {
+        if (plot == null || !plot.getFlag(Flags.EXPLOSION).orElse(false)) {
             event.setCancelled(true);
         }
         event.blockList().removeIf(
@@ -2170,7 +2169,7 @@ import java.util.regex.Pattern;
                         || !plotIgnited.equals(plot)) ||
                     (igniteCause == BlockIgniteEvent.IgniteCause.SPREAD
                         || igniteCause == BlockIgniteEvent.IgniteCause.LAVA) && (
-                        !plot.getFlag(Flags.BLOCK_IGNITION).or(false) || plotIgnited == null
+                        !plot.getFlag(Flags.BLOCK_IGNITION).orElse(false) || plotIgnited == null
                             || !plotIgnited.equals(plot))) {
                     event.setCancelled(true);
                 }

Bukkit/src/main/java/com/github/intellectualsites/plotsquared/bukkit/listeners/PlotPlusListener.java

@@ -7,7 +7,6 @@ import com.github.intellectualsites.plotsquared.plot.flag.Flags;
 import com.github.intellectualsites.plotsquared.plot.listener.PlotListener;
 import com.github.intellectualsites.plotsquared.plot.object.Plot;
 import com.github.intellectualsites.plotsquared.plot.object.PlotPlayer;
-import com.google.common.base.Optional;
 import org.bukkit.Bukkit;
 import org.bukkit.GameMode;
 import org.bukkit.block.Block;
@@ -28,6 +27,7 @@ import org.bukkit.plugin.java.JavaPlugin;
 import java.util.HashMap;
 import java.util.Iterator;
 import java.util.Map.Entry;
+import java.util.Optional;
 import java.util.UUID;
 
 @SuppressWarnings("unused")
@@ -139,15 +139,11 @@ public class PlotPlusListener extends PlotListener implements Listener {
         Player player = event.getPlayer();
         Plot plot = event.getPlot();
         Optional<Integer[]> feed = plot.getFlag(Flags.FEED);
-        if (feed.isPresent()) {
+        feed.ifPresent( value -> feedRunnable.put(player.getUniqueId(), new Interval(value[0], value[1], 20))
-            Integer[] value = feed.get();
+        );
-            feedRunnable.put(player.getUniqueId(), new Interval(value[0], value[1], 20));
-        }
         Optional<Integer[]> heal = plot.getFlag(Flags.HEAL);
-        if (heal.isPresent()) {
+        heal.ifPresent( value -> healRunnable.put(player.getUniqueId(), new Interval(value[0], value[1], 20))
-            Integer[] value = heal.get();
+        );
-            healRunnable.put(player.getUniqueId(), new Interval(value[0], value[1], 20));
-        }
     }
 
     @EventHandler

Core/src/main/java/com/github/intellectualsites/plotsquared/plot/commands/Buy.java

@@ -11,8 +11,8 @@ import com.github.intellectualsites.plotsquared.plot.object.RunnableVal3;
 import com.github.intellectualsites.plotsquared.plot.util.EconHandler;
 import com.github.intellectualsites.plotsquared.plot.util.MainUtil;
 import com.github.intellectualsites.plotsquared.plot.util.UUIDHandler;
-import com.google.common.base.Optional;
 
+import java.util.Optional;
 import java.util.Set;
 
 @CommandDeclaration(command = "buy", description = "Buy the plot you are standing on",

Core/src/main/java/com/github/intellectualsites/plotsquared/plot/commands/FlagCmd.java

@@ -10,7 +10,6 @@ import com.github.intellectualsites.plotsquared.plot.object.Location;
 import com.github.intellectualsites.plotsquared.plot.object.Plot;
 import com.github.intellectualsites.plotsquared.plot.object.PlotPlayer;
 import com.github.intellectualsites.plotsquared.plot.util.*;
-import com.google.common.base.Optional;
 
 import java.util.*;
 

Core/src/main/java/com/github/intellectualsites/plotsquared/plot/commands/ListCmd.java

@@ -8,7 +8,6 @@ import com.github.intellectualsites.plotsquared.plot.flag.Flags;
 import com.github.intellectualsites.plotsquared.plot.object.*;
 import com.github.intellectualsites.plotsquared.plot.util.*;
 import com.github.intellectualsites.plotsquared.plot.util.expiry.ExpireManager;
-import com.google.common.base.Optional;
 
 import java.util.*;
 import java.util.Map.Entry;
@@ -162,11 +161,10 @@ public class ListCmd extends SubCommand {
                 plots = new ArrayList<>();
                 for (Plot plot : PlotSquared.get().getPlots()) {
                     Optional<String> flag = plot.getFlag(Flags.DONE);
-                    if (!flag.isPresent()) {
+                    if (flag.isPresent()) {
-                        continue;
-                    }
                         plots.add(plot);
                     }
+                }
                 Collections.sort(plots, new Comparator<Plot>() {
                     @Override public int compare(Plot a, Plot b) {
                         String va = "" + a.getFlags().get(Flags.DONE);

Core/src/main/java/com/github/intellectualsites/plotsquared/plot/flag/FlagManager.java

@@ -5,10 +5,8 @@ import com.github.intellectualsites.plotsquared.plot.database.DBFunc;
 import com.github.intellectualsites.plotsquared.plot.object.*;
 import com.github.intellectualsites.plotsquared.plot.util.EventUtil;
 import com.github.intellectualsites.plotsquared.plot.util.Permissions;
-import com.google.common.base.Optional;
 import com.google.common.collect.ImmutableSet;
 
-import java.lang.reflect.Field;
 import java.util.*;
 
 /**
@@ -16,38 +14,9 @@ import java.util.*;
  */
 public class FlagManager {
 
-
-    /**
-     * Some events can be called millions of times each second (e.g. physics)
-     * and reusing is a lot faster.
-     */
-    private static final Optional MUTABLE_OPTIONAL;
-    private static Field MUTABLE_OPTIONAL_FIELD;
-
-    static {
-        MUTABLE_OPTIONAL = Optional.of(new Object());
-        try {
-            MUTABLE_OPTIONAL_FIELD = MUTABLE_OPTIONAL.getClass().getDeclaredField("reference");
-            MUTABLE_OPTIONAL_FIELD.setAccessible(true);
-        } catch (NoSuchFieldException e) {
-            e.printStackTrace();
-        }
-    }
-
     public static <V> Optional<V> getPlotFlag(Plot plot, Flag<V> key) {
         V value = FlagManager.getPlotFlagRaw(plot, key);
-        if (value != null) {
+        return Optional.ofNullable(value);
-            if (PlotSquared.get().isMainThread(Thread.currentThread())) {
-                try {
-                    MUTABLE_OPTIONAL_FIELD.set(MUTABLE_OPTIONAL, value);
-                    return MUTABLE_OPTIONAL;
-                } catch (IllegalAccessException e) {
-                    e.printStackTrace();
-                }
-            }
-            return Optional.of(value);
-        }
-        return Optional.absent();
     }
 
     /**

Core/src/main/java/com/github/intellectualsites/plotsquared/plot/listener/PlotListener.java

@@ -8,10 +8,10 @@ import com.github.intellectualsites.plotsquared.plot.flag.Flags;
 import com.github.intellectualsites.plotsquared.plot.object.*;
 import com.github.intellectualsites.plotsquared.plot.util.*;
 import com.github.intellectualsites.plotsquared.plot.util.expiry.ExpireManager;
-import com.google.common.base.Optional;
 
 import java.util.HashMap;
 import java.util.Map;
+import java.util.Optional;
 import java.util.UUID;
 
 public class PlotListener {
@@ -122,9 +122,8 @@ public class PlotListener {
                     }
                 }
                 Optional<PlotWeather> weatherFlag = plot.getFlag(Flags.WEATHER);
-                if (weatherFlag.isPresent()) {
+                weatherFlag.ifPresent(player::setWeather);
-                    player.setWeather(weatherFlag.get());
+                Optional<String> musicFlag = plot.getFlag(Flags.MUSIC);
-                }  Optional<String> musicFlag = plot.getFlag(Flags.MUSIC);
                 if (musicFlag.isPresent()) {
                     final String id = musicFlag.get();
                     final PlotBlock block = PlotBlock.get(id);
@@ -211,14 +210,13 @@ public class PlotListener {
                 }
             }
             Optional<String> farewell = plot.getFlag(Flags.FAREWELL);
-            if (farewell.isPresent()) {
+            farewell.ifPresent(s -> MainUtil.format(C.PREFIX_FAREWELL.s() + s, plot, player, false,
-                MainUtil.format(C.PREFIX_FAREWELL.s() + farewell.get(), plot, player, false,
                     new RunnableVal<String>() {
-                        @Override public void run(String value) {
+                        @Override
+                        public void run(String value) {
                             MainUtil.sendMessage(player, value);
                         }
-                    });
+                    }));
-            }
             Optional<Boolean> leave = plot.getFlag(Flags.NOTIFY_LEAVE);
             if (leave.isPresent() && leave.get()) {
                 if (!Permissions.hasPermission(player, "plots.flag.notify-enter.bypass")) {

Core/src/main/java/com/github/intellectualsites/plotsquared/plot/object/Plot.java

@@ -16,7 +16,6 @@ import com.github.intellectualsites.plotsquared.plot.util.block.GlobalBlockQueue
 import com.github.intellectualsites.plotsquared.plot.util.block.LocalBlockQueue;
 import com.github.intellectualsites.plotsquared.plot.util.expiry.ExpireManager;
 import com.github.intellectualsites.plotsquared.plot.util.expiry.PlotAnalysis;
-import com.google.common.base.Optional;
 import com.google.common.collect.BiMap;
 import com.google.common.collect.ImmutableSet;
 import com.sk89q.jnbt.CompoundTag;

Core/src/main/java/com/github/intellectualsites/plotsquared/plot/util/EventUtil.java

@@ -8,11 +8,11 @@ import com.github.intellectualsites.plotsquared.plot.flag.Flags;
 import com.github.intellectualsites.plotsquared.plot.listener.PlayerBlockEventType;
 import com.github.intellectualsites.plotsquared.plot.object.*;
 import com.github.intellectualsites.plotsquared.plot.util.expiry.ExpireManager;
-import com.google.common.base.Optional;
 
 import javax.annotation.Nullable;
 import java.util.HashSet;
 import java.util.List;
+import java.util.Optional;
 import java.util.UUID;
 
 public abstract class EventUtil {
@@ -154,7 +154,7 @@ public abstract class EventUtil {
                     return Permissions
                         .hasPermission(player, C.PERMISSION_ADMIN_INTERACT_ROAD.s(), notifyPerms);
                 }
-                if (plot.getFlag(Flags.HANGING_BREAK).or(false)) {
+                if (plot.getFlag(Flags.HANGING_BREAK).orElse(false)) {
                     return true;
                 }
                 if (plot.hasOwner()) {
@@ -170,7 +170,7 @@ public abstract class EventUtil {
                     return Permissions
                         .hasPermission(player, C.PERMISSION_ADMIN_INTERACT_ROAD.s(), notifyPerms);
                 }
-                if (plot.getFlag(Flags.MISC_BREAK).or(false)) {
+                if (plot.getFlag(Flags.MISC_BREAK).orElse(false)) {
                     return true;
                 }
                 if (plot.hasOwner()) {
@@ -186,7 +186,7 @@ public abstract class EventUtil {
                     return Permissions
                         .hasPermission(player, C.PERMISSION_ADMIN_INTERACT_ROAD.s(), notifyPerms);
                 }
-                if (plot.getFlag(Flags.VEHICLE_BREAK).or(false)) {
+                if (plot.getFlag(Flags.VEHICLE_BREAK).orElse(false)) {
                     return true;
                 }
                 if (plot.hasOwner()) {
@@ -210,12 +210,7 @@ public abstract class EventUtil {
                             notifyPerms);
                 }
                 Optional<HashSet<PlotBlock>> flagValue = plot.getFlag(Flags.USE);
-                HashSet<PlotBlock> value;
+                HashSet<PlotBlock> value = flagValue.orElse(null);
-                if (flagValue.isPresent()) {
-                    value = flagValue.get();
-                } else {
-                    value = null;
-                }
                 if (value == null || !PlotBlock.containsEverything(value) && !value
                     .contains(block.getPlotBlock())) {
                     return Permissions
@@ -235,12 +230,7 @@ public abstract class EventUtil {
                         .hasPermission(player, C.PERMISSION_ADMIN_BUILD_UNOWNED.s(), notifyPerms);
                 }
                 Optional<HashSet<PlotBlock>> flagValue = plot.getFlag(Flags.PLACE);
-                HashSet<PlotBlock> value;
+                HashSet<PlotBlock> value = flagValue.orElse(null);
-                if (flagValue.isPresent()) {
-                    value = flagValue.get();
-                } else {
-                    value = null;
-                }
                 if (value == null || !PlotBlock.containsEverything(value) && !value
                     .contains(block.getPlotBlock())) {
                     if (Permissions
@@ -261,16 +251,11 @@ public abstract class EventUtil {
                     return Permissions
                         .hasPermission(player, C.PERMISSION_ADMIN_INTERACT_UNOWNED.s(), false);
                 }
-                if (plot.getFlag(Flags.DEVICE_INTERACT).or(false)) {
+                if (plot.getFlag(Flags.DEVICE_INTERACT).orElse(false)) {
                     return true;
                 }
                 Optional<HashSet<PlotBlock>> flagValue = plot.getFlag(Flags.USE);
-                HashSet<PlotBlock> value;
+                HashSet<PlotBlock> value = flagValue.orElse(null);
-                if (flagValue.isPresent()) {
-                    value = flagValue.get();
-                } else {
-                    value = null;
-                }
                 if (value == null || !PlotBlock.containsEverything(value) && !value
                     .contains(block.getPlotBlock())) {
                     if (Permissions
@@ -291,16 +276,11 @@ public abstract class EventUtil {
                         .hasPermission(player, C.PERMISSION_ADMIN_INTERACT_UNOWNED.s(),
                             notifyPerms);
                 }
-                if (plot.getFlag(Flags.HOSTILE_INTERACT).or(false)) {
+                if (plot.getFlag(Flags.HOSTILE_INTERACT).orElse(false)) {
                     return true;
                 }
                 Optional<HashSet<PlotBlock>> flagValue = plot.getFlag(Flags.USE);
-                HashSet<PlotBlock> value;
+                HashSet<PlotBlock> value = flagValue.orElse(null);
-                if (flagValue.isPresent()) {
-                    value = flagValue.get();
-                } else {
-                    value = null;
-                }
                 if (value == null || !PlotBlock.containsEverything(value) && !value
                     .contains(block.getPlotBlock())) {
                     if (Permissions
@@ -322,16 +302,11 @@ public abstract class EventUtil {
                         .hasPermission(player, C.PERMISSION_ADMIN_INTERACT_UNOWNED.s(),
                             notifyPerms);
                 }
-                if (plot.getFlag(Flags.MISC_INTERACT).or(false)) {
+                if (plot.getFlag(Flags.MISC_INTERACT).orElse(false)) {
                     return true;
                 }
                 Optional<HashSet<PlotBlock>> flag = plot.getFlag(Flags.USE);
-                HashSet<PlotBlock> value;
+                HashSet<PlotBlock> value = flag.orElse(null);
-                if (flag.isPresent()) {
-                    value = flag.get();
-                } else {
-                    value = null;
-                }
                 if (value == null || !PlotBlock.containsEverything(value) && !value
                     .contains(block.getPlotBlock())) {
                     if (Permissions
@@ -353,16 +328,11 @@ public abstract class EventUtil {
                         .hasPermission(player, C.PERMISSION_ADMIN_INTERACT_UNOWNED.s(),
                             notifyPerms);
                 }
-                if (plot.getFlag(Flags.VEHICLE_USE).or(false)) {
+                if (plot.getFlag(Flags.VEHICLE_USE).orElse(false)) {
                     return true;
                 }
                 Optional<HashSet<PlotBlock>> flag = plot.getFlag(Flags.USE);
-                HashSet<PlotBlock> value;
+                HashSet<PlotBlock> value = flag.orElse(null);
-                if (flag.isPresent()) {
-                    value = flag.get();
-                } else {
-                    value = null;
-                }
                 if (value == null || !PlotBlock.containsEverything(value) && !value
                     .contains(block.getPlotBlock())) {
                     if (Permissions
@@ -384,16 +354,11 @@ public abstract class EventUtil {
                         .hasPermission(player, C.PERMISSION_ADMIN_INTERACT_UNOWNED.s(),
                             notifyPerms);
                 }
-                if (plot.getFlag(Flags.MOB_PLACE).or(false)) {
+                if (plot.getFlag(Flags.MOB_PLACE).orElse(false)) {
                     return true;
                 }
                 Optional<HashSet<PlotBlock>> flagValue = plot.getFlag(Flags.PLACE);
-                HashSet<PlotBlock> value;
+                HashSet<PlotBlock> value = flagValue.orElse(null);
-                if (flagValue.isPresent()) {
-                    value = flagValue.get();
-                } else {
-                    value = null;
-                }
                 if (value == null || !PlotBlock.containsEverything(value) && !value
                     .contains(block.getPlotBlock())) {
                     if (Permissions
@@ -417,16 +382,11 @@ public abstract class EventUtil {
                         .hasPermission(player, C.PERMISSION_ADMIN_INTERACT_UNOWNED.s(),
                             notifyPerms);
                 }
-                if (plot.getFlag(Flags.MISC_PLACE).or(false)) {
+                if (plot.getFlag(Flags.MISC_PLACE).orElse(false)) {
                     return true;
                 }
                 Optional<HashSet<PlotBlock>> flag = plot.getFlag(Flags.PLACE);
-                HashSet<PlotBlock> value;
+                HashSet<PlotBlock> value = flag.orElse(null);
-                if (flag.isPresent()) {
-                    value = flag.get();
-                } else {
-                    value = null;
-                }
                 if (value == null || !PlotBlock.containsEverything(value) && !value
                     .contains(block.getPlotBlock())) {
                     if (Permissions
@@ -449,16 +409,11 @@ public abstract class EventUtil {
                         .hasPermission(player, C.PERMISSION_ADMIN_INTERACT_UNOWNED.s(),
                             notifyPerms);
                 }
-                if (plot.getFlag(Flags.VEHICLE_PLACE).or(false)) {
+                if (plot.getFlag(Flags.VEHICLE_PLACE).orElse(false)) {
                     return true;
                 }
                 Optional<HashSet<PlotBlock>> flag = plot.getFlag(Flags.PLACE);
-                HashSet<PlotBlock> value;
+                HashSet<PlotBlock> value = flag.orElse(null);
-                if (flag.isPresent()) {
-                    value = flag.get();
-                } else {
-                    value = null;
-                }
                 if (value == null || !PlotBlock.containsEverything(value) && !value
                     .contains(block.getPlotBlock())) {
                     if (Permissions

Core/src/main/java/com/github/intellectualsites/plotsquared/plot/util/MainUtil.java

@@ -10,7 +10,6 @@ import com.github.intellectualsites.plotsquared.plot.flag.Flags;
 import com.github.intellectualsites.plotsquared.plot.object.*;
 import com.github.intellectualsites.plotsquared.plot.object.stream.AbstractDelegateOutputStream;
 import com.github.intellectualsites.plotsquared.plot.util.expiry.ExpireManager;
-import com.google.common.base.Optional;
 
 import java.io.*;
 import java.net.HttpURLConnection;

Core/src/main/java/com/github/intellectualsites/plotsquared/plot/util/expiry/ExpireManager.java

@@ -12,7 +12,6 @@ import com.github.intellectualsites.plotsquared.plot.util.MainUtil;
 import com.github.intellectualsites.plotsquared.plot.util.StringMan;
 import com.github.intellectualsites.plotsquared.plot.util.TaskManager;
 import com.github.intellectualsites.plotsquared.plot.util.UUIDHandler;
-import com.google.common.base.Optional;
 
 import java.util.*;
 import java.util.concurrent.ConcurrentHashMap;

Core/src/main/java/com/github/intellectualsites/plotsquared/plot/util/expiry/PlotAnalysis.java

@@ -8,7 +8,6 @@ import com.github.intellectualsites.plotsquared.plot.object.Plot;
 import com.github.intellectualsites.plotsquared.plot.object.RunnableVal;
 import com.github.intellectualsites.plotsquared.plot.util.MathMan;
 import com.github.intellectualsites.plotsquared.plot.util.TaskManager;
-import com.google.common.base.Optional;
 
 import java.lang.reflect.Array;
 import java.util.*;

Core/src/test/java/com/github/intellectualsites/plotsquared/plot/FlagTest.java

@@ -9,12 +9,12 @@ import com.github.intellectualsites.plotsquared.plot.object.PlotBlock;
 import com.github.intellectualsites.plotsquared.plot.object.PlotId;
 import com.github.intellectualsites.plotsquared.plot.util.EventUtil;
 import com.github.intellectualsites.plotsquared.plot.util.EventUtilTest;
-import com.google.common.base.Optional;
 import org.junit.Before;
 import org.junit.Test;
 
 import java.util.Collection;
 import java.util.HashSet;
+import java.util.Optional;
 import java.util.UUID;
 
 import static org.junit.Assert.assertEquals;
@@ -39,9 +39,7 @@ public class FlagTest {
             testBlock = PlotBlock.get((short) 1, (byte) 0);
             flag.get().add(testBlock);
         }
-        if (flag.isPresent()) {
+        flag.ifPresent(collection -> System.out.println(Flags.USE.valueToString(collection)));
-            System.out.println(Flags.USE.valueToString(flag.get()));
-        }
         Optional<HashSet<PlotBlock>> flag2 = plot.getFlag(Flags.USE);
         if (flag2.isPresent()) {
             //   assertThat(flag2.get(), (Matcher<? super HashSet<PlotBlock>>) IsCollectionContaining.hasItem(testBlock));