Do not add unnecessary materials or entity types to the database

src/main/java/de/diddiz/LogBlock/EntityTypeConverter.java

@@ -16,6 +16,10 @@ public class EntityTypeConverter {
     private static HashMap<EntityType, Integer> entityTypeToId = new HashMap<>();
     private static int nextEntityTypeId;
 
+    public synchronized static int getExistingEntityTypeId(EntityType entityType) {
+        return entityType == null ? null : entityTypeToId.get(entityType);
+    }
+
     public synchronized static int getOrAddEntityTypeId(EntityType entityType) {
         Integer key = entityTypeToId.get(entityType);
         int tries = 0;

src/main/java/de/diddiz/LogBlock/MaterialConverter.java

@@ -30,6 +30,18 @@ public class MaterialConverter {
         }
     }
 
+    public synchronized static Integer getExistingMaterialId(BlockData blockData) {
+        return blockData == null ? null : getExistingMaterialId(blockData.getMaterial());
+    }
+
+    public synchronized static Integer getExistingMaterialId(Material material) {
+        if (material == null) {
+            return null;
+        }
+        String materialString = material.getKey().toString();
+        return materialToID.get(materialString);
+    }
+
     public synchronized static int getOrAddMaterialId(BlockData blockData) {
         return getOrAddMaterialId(blockData == null ? Material.AIR : blockData.getMaterial());
     }
@@ -76,9 +88,22 @@ public class MaterialConverter {
         return key.intValue();
     }
 
+    public synchronized static Integer getExistingBlockStateId(BlockData blockData) {
+        if (blockData == null) {
+            return -1;
+        }
+        String blockDataString = blockData.getAsString();
+        int dataPart = blockDataString.indexOf("[");
+        if (dataPart < 0) {
+            return -1;
+        }
+        String materialString = blockDataString.substring(dataPart);
+        return blockStateToID.get(materialString);
+    }
+
     public synchronized static int getOrAddBlockStateId(BlockData blockData) {
         if (blockData == null) {
-            blockData = Material.AIR.createBlockData();
+            return -1;
         }
         String blockDataString = blockData.getAsString();
         int dataPart = blockDataString.indexOf("[");

src/main/java/de/diddiz/LogBlock/QueryParams.java

@@ -1017,16 +1017,26 @@ public final class QueryParams implements Cloneable {
         HashSet<Integer> typeIds = new HashSet<>();
         for (Material type : types) {
             if (type != null) {
-                typeIds.add(MaterialConverter.getOrAddMaterialId(type));
+                Integer id = MaterialConverter.getExistingMaterialId(type);
+                if (id != null) {
+                    typeIds.add(id);
+                }
             }
         }
         for (Tag<Material> tag : typeTags) {
             if (tag != null) {
                 for (Material type : tag.getValues()) {
-                    typeIds.add(MaterialConverter.getOrAddMaterialId(type));
+                    Integer id = MaterialConverter.getExistingMaterialId(type);
+                    if (id != null) {
+                        typeIds.add(id);
+                    }
                 }
             }
         }
+        // add invalid id, so the type list is not ignored
+        if ((!types.isEmpty() || !typeTags.isEmpty()) && typeIds.isEmpty()) {
+            typeIds.add(-1);
+        }
         return typeIds;
     }
 
@@ -1034,9 +1044,13 @@ public final class QueryParams implements Cloneable {
         HashSet<Integer> typeIds = new HashSet<>();
         for (EntityType type : entityTypes) {
             if (type != null) {
-                typeIds.add(EntityTypeConverter.getOrAddEntityTypeId(type));
+                typeIds.add(EntityTypeConverter.getExistingEntityTypeId(type));
             }
         }
+        // add invalid id, so the type list is not ignored
+        if (!entityTypes.isEmpty() && typeIds.isEmpty()) {
+            typeIds.add(-1);
+        }
         return typeIds;
     }