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Cache the item metadata results

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Acrobot 2013-08-05 02:06:13 +02:00
parent 42ca03b780
commit e5c3fe733f
1 changed files with 13 additions and 2 deletions
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15
src/main/java/com/Acrobot/ChestShop/Metadata/ItemDatabase.java
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@ -15,6 +15,8 @@ import org.yaml.snakeyaml.Yaml;
import java.io.IOException; import java.io.IOException;
import java.sql.SQLException; import java.sql.SQLException;
import java.sql.Statement; import java.sql.Statement;
import java.util.HashMap;
import java.util.Map;
/** /**
* Saves items with Metadata in database, which allows for saving items on signs easily. * Saves items with Metadata in database, which allows for saving items on signs easily.
@ -22,7 +24,9 @@ import java.sql.Statement;
* @author Acrobot * @author Acrobot
*/ */
public class ItemDatabase { public class ItemDatabase {
private Yaml yaml; private static final Map<String, ItemStack> METADATA_CACHE = new HashMap<String, ItemStack>();
private final Yaml yaml;
private Table table; private Table table;
public ItemDatabase() { public ItemDatabase() {
@ -81,6 +85,10 @@ public class ItemDatabase {
* @return ItemStack represented by this code * @return ItemStack represented by this code
*/ */
public ItemStack getFromCode(String code) { public ItemStack getFromCode(String code) {
if (METADATA_CACHE.containsKey(code)) {
return METADATA_CACHE.get(code);
}
try { try {
Row row = table.getRow("id='" + Base62.decode(code) + '\''); Row row = table.getRow("id='" + Base62.decode(code) + '\'');
@ -90,7 +98,10 @@ public class ItemDatabase {
String serialized = row.get("code"); String serialized = row.get("code");
return (ItemStack) yaml.load((String) Base64.decodeToObject(serialized)); ItemStack item = (ItemStack) yaml.load((String) Base64.decodeToObject(serialized));
METADATA_CACHE.put(code, item);
return item;
} catch (SQLException e) { } catch (SQLException e) {
e.printStackTrace(); e.printStackTrace();
return null; return null;