From 5b9728282b184f0cc66616fc142c1d5666007c0d Mon Sep 17 00:00:00 2001
From: vran <vran_dev@foxmail.com>
Date: Thu, 12 May 2022 13:42:28 +0800
Subject: [PATCH] feat: pre compile regex when sync document (#171)

---
 .../main/java/com/databasir/core/Databasir.java    | 14 ++++++++++++--
 .../core/meta/provider/condition/Condition.java    | 10 ++++++----
 .../meta/provider/condition/TableCondition.java    |  4 ++--
 3 files changed, 20 insertions(+), 8 deletions(-)

diff --git a/meta/src/main/java/com/databasir/core/Databasir.java b/meta/src/main/java/com/databasir/core/Databasir.java
index 36ea9f9..16f4c9b 100644
--- a/meta/src/main/java/com/databasir/core/Databasir.java
+++ b/meta/src/main/java/com/databasir/core/Databasir.java
@@ -11,7 +11,10 @@ import lombok.RequiredArgsConstructor;
 import java.io.IOException;
 import java.io.OutputStream;
 import java.sql.Connection;
+import java.util.List;
 import java.util.Optional;
+import java.util.regex.Pattern;
+import java.util.stream.Collectors;
 
 @RequiredArgsConstructor
 @Getter
@@ -20,11 +23,18 @@ public class Databasir {
     private final DatabasirConfig config;
 
     public Optional<DatabaseMeta> get(Connection connection, String databaseName, String schemaName) {
+        // pre compile regex
+        List<Pattern> ignoreTableColumnPatterns = config.getIgnoreTableColumnNameRegex().stream()
+                .map(Pattern::compile)
+                .collect(Collectors.toList());
+        List<Pattern> ignoreTableNamePatterns = config.getIgnoreTableNameRegex().stream()
+                .map(Pattern::compile)
+                .collect(Collectors.toList());
         Condition condition = Condition.builder()
                 .databaseName(databaseName)
                 .schemaName(schemaName)
-                .ignoreTableNameRegex(config.getIgnoreTableNameRegex())
-                .ignoreTableColumnNameRegex(config.getIgnoreTableColumnNameRegex())
+                .ignoreTableNamePatterns(ignoreTableNamePatterns)
+                .ignoreTableColumnNamePatterns(ignoreTableColumnPatterns)
                 .build();
         return MetaProviders
                 .of(connection)
diff --git a/meta/src/main/java/com/databasir/core/meta/provider/condition/Condition.java b/meta/src/main/java/com/databasir/core/meta/provider/condition/Condition.java
index d2d457f..2ff7523 100644
--- a/meta/src/main/java/com/databasir/core/meta/provider/condition/Condition.java
+++ b/meta/src/main/java/com/databasir/core/meta/provider/condition/Condition.java
@@ -19,16 +19,18 @@ public class Condition {
     private String schemaName;
 
     @Builder.Default
-    private Collection<String> ignoreTableNameRegex = Collections.emptyList();
+    @Builder.ObtainVia(method = "ignoreTableNameRegexes")
+    private Collection<Pattern> ignoreTableNamePatterns = Collections.emptyList();
 
     @Builder.Default
-    private Collection<String> ignoreTableColumnNameRegex = Collections.emptyList();
+    @Builder.ObtainVia(method = "ignoreTableColumnNameRegexes")
+    private Collection<Pattern> ignoreTableColumnNamePatterns = Collections.emptyList();
 
     public boolean tableIsIgnored(String tableName) {
-        return ignoreTableNameRegex.stream().anyMatch(regex -> Pattern.matches(regex, tableName));
+        return ignoreTableNamePatterns.stream().anyMatch(regex -> regex.matcher(tableName).matches());
     }
 
     public boolean columnIsIgnored(String column) {
-        return ignoreTableColumnNameRegex.stream().anyMatch(regex -> Pattern.matches(regex, column));
+        return ignoreTableColumnNamePatterns.stream().anyMatch(regex -> regex.matcher(column).matches());
     }
 }
diff --git a/meta/src/main/java/com/databasir/core/meta/provider/condition/TableCondition.java b/meta/src/main/java/com/databasir/core/meta/provider/condition/TableCondition.java
index 21cdcd3..590e64e 100644
--- a/meta/src/main/java/com/databasir/core/meta/provider/condition/TableCondition.java
+++ b/meta/src/main/java/com/databasir/core/meta/provider/condition/TableCondition.java
@@ -16,8 +16,8 @@ public class TableCondition extends Condition {
                 .databaseName(condition.getDatabaseName())
                 .tableName(tableName)
                 .schemaName(condition.getSchemaName())
-                .ignoreTableNameRegex(condition.getIgnoreTableNameRegex())
-                .ignoreTableColumnNameRegex(condition.getIgnoreTableColumnNameRegex())
+                .ignoreTableNamePatterns(condition.getIgnoreTableNamePatterns())
+                .ignoreTableColumnNamePatterns(condition.getIgnoreTableColumnNamePatterns())
                 .build();
     }