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Posted to notifications@shardingsphere.apache.org by wu...@apache.org on 2023/03/15 08:20:53 UTC

[shardingsphere-elasticjob] branch master updated: Make RDBJobEventStorage singleton(#2184)

This is an automated email from the ASF dual-hosted git repository.

wuweijie pushed a commit to branch master
in repository https://gitbox.apache.org/repos/asf/shardingsphere-elasticjob.git


The following commit(s) were added to refs/heads/master by this push:
     new 5297e2f65 Make RDBJobEventStorage singleton(#2184)
5297e2f65 is described below

commit 5297e2f65c70bbf9ae3545d3142ed69bb34e14d4
Author: wizhuo <46...@users.noreply.github.com>
AuthorDate: Wed Mar 15 16:20:41 2023 +0800

    Make RDBJobEventStorage singleton(#2184)
    
    * one dataSource just need one RDBJobEventStorage,start job faster
    
    * adjust code style
    
    * Update elasticjob-ecosystem/elasticjob-tracing/elasticjob-tracing-api/src/main/java/org/apache/shardingsphere/elasticjob/tracing/exception/WrapException.java
    
    Co-authored-by: 吴伟杰 <wu...@apache.org>
    
    * Update elasticjob-ecosystem/elasticjob-tracing/elasticjob-tracing-rdb/src/main/java/org/apache/shardingsphere/elasticjob/tracing/rdb/storage/RDBJobEventStorage.java
    
    Co-authored-by: 吴伟杰 <wu...@apache.org>
    
    * Update elasticjob-ecosystem/elasticjob-tracing/elasticjob-tracing-rdb/src/main/java/org/apache/shardingsphere/elasticjob/tracing/rdb/storage/RDBJobEventStorage.java
    
    Co-authored-by: 吴伟杰 <wu...@apache.org>
    
    ---------
    
    Co-authored-by: 吴伟杰 <wu...@apache.org>
---
 .../tracing/exception/WrapException.java           | 28 +++++++++++
 .../tracing/rdb/listener/RDBTracingListener.java   |  2 +-
 .../tracing/rdb/storage/RDBJobEventStorage.java    | 54 +++++++++++++++++++---
 .../rdb/storage/RDBJobEventStorageTest.java        |  2 +-
 4 files changed, 77 insertions(+), 9 deletions(-)

diff --git a/elasticjob-ecosystem/elasticjob-tracing/elasticjob-tracing-api/src/main/java/org/apache/shardingsphere/elasticjob/tracing/exception/WrapException.java b/elasticjob-ecosystem/elasticjob-tracing/elasticjob-tracing-api/src/main/java/org/apache/shardingsphere/elasticjob/tracing/exception/WrapException.java
new file mode 100644
index 000000000..8e776a8d7
--- /dev/null
+++ b/elasticjob-ecosystem/elasticjob-tracing/elasticjob-tracing-api/src/main/java/org/apache/shardingsphere/elasticjob/tracing/exception/WrapException.java
@@ -0,0 +1,28 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.shardingsphere.elasticjob.tracing.exception;
+
+/**
+ * Use to wrap Exception.
+ */
+public class WrapException extends RuntimeException {
+    
+    public WrapException(final Throwable cause) {
+        super(cause);
+    }
+}
diff --git a/elasticjob-ecosystem/elasticjob-tracing/elasticjob-tracing-rdb/src/main/java/org/apache/shardingsphere/elasticjob/tracing/rdb/listener/RDBTracingListener.java b/elasticjob-ecosystem/elasticjob-tracing/elasticjob-tracing-rdb/src/main/java/org/apache/shardingsphere/elasticjob/tracing/rdb/listener/RDBTracingListener.java
index 536930226..3c518e838 100644
--- a/elasticjob-ecosystem/elasticjob-tracing/elasticjob-tracing-rdb/src/main/java/org/apache/shardingsphere/elasticjob/tracing/rdb/listener/RDBTracingListener.java
+++ b/elasticjob-ecosystem/elasticjob-tracing/elasticjob-tracing-rdb/src/main/java/org/apache/shardingsphere/elasticjob/tracing/rdb/listener/RDBTracingListener.java
@@ -33,7 +33,7 @@ public final class RDBTracingListener implements TracingListener {
     private final RDBJobEventStorage repository;
     
     public RDBTracingListener(final DataSource dataSource) throws SQLException {
-        repository = new RDBJobEventStorage(dataSource);
+        repository = RDBJobEventStorage.getInstance(dataSource);
     }
     
     @Override
diff --git a/elasticjob-ecosystem/elasticjob-tracing/elasticjob-tracing-rdb/src/main/java/org/apache/shardingsphere/elasticjob/tracing/rdb/storage/RDBJobEventStorage.java b/elasticjob-ecosystem/elasticjob-tracing/elasticjob-tracing-rdb/src/main/java/org/apache/shardingsphere/elasticjob/tracing/rdb/storage/RDBJobEventStorage.java
index ab7d045f7..8c27715f0 100644
--- a/elasticjob-ecosystem/elasticjob-tracing/elasticjob-tracing-rdb/src/main/java/org/apache/shardingsphere/elasticjob/tracing/rdb/storage/RDBJobEventStorage.java
+++ b/elasticjob-ecosystem/elasticjob-tracing/elasticjob-tracing-rdb/src/main/java/org/apache/shardingsphere/elasticjob/tracing/rdb/storage/RDBJobEventStorage.java
@@ -23,6 +23,7 @@ import org.apache.shardingsphere.elasticjob.tracing.event.JobExecutionEvent;
 import org.apache.shardingsphere.elasticjob.tracing.event.JobStatusTraceEvent;
 import org.apache.shardingsphere.elasticjob.tracing.event.JobStatusTraceEvent.Source;
 import org.apache.shardingsphere.elasticjob.tracing.event.JobStatusTraceEvent.State;
+import org.apache.shardingsphere.elasticjob.tracing.exception.WrapException;
 import org.apache.shardingsphere.elasticjob.tracing.rdb.type.DatabaseType;
 import org.apache.shardingsphere.elasticjob.tracing.rdb.type.impl.DefaultDatabaseType;
 
@@ -41,6 +42,8 @@ import java.util.List;
 import java.util.Map;
 import java.util.ServiceLoader;
 import java.util.UUID;
+import java.util.concurrent.ConcurrentHashMap;
+import java.util.function.Supplier;
 
 /**
  * RDB job event storage.
@@ -55,26 +58,63 @@ public final class RDBJobEventStorage {
     private static final String TASK_ID_STATE_INDEX = "TASK_ID_STATE_INDEX";
     
     private static final Map<String, DatabaseType> DATABASE_TYPES = new HashMap<>();
-    
+
+    private static final Map<DataSource, RDBJobEventStorage> STORAGE_MAP = new ConcurrentHashMap<>();
+
     private final DataSource dataSource;
-    
+
     private final DatabaseType databaseType;
-    
+
     private final RDBStorageSQLMapper sqlMapper;
-    
+
     static {
         for (DatabaseType each : ServiceLoader.load(DatabaseType.class)) {
             DATABASE_TYPES.put(each.getType(), each);
         }
     }
-    
-    public RDBJobEventStorage(final DataSource dataSource) throws SQLException {
+
+    private RDBJobEventStorage(final DataSource dataSource) throws SQLException {
         this.dataSource = dataSource;
         databaseType = getDatabaseType(dataSource);
         sqlMapper = new RDBStorageSQLMapper(databaseType.getSQLPropertiesFile());
         initTablesAndIndexes();
     }
-    
+
+    /**
+     * The same dataSource always return the same RDBJobEventStorage instance.
+     *
+     * @param dataSource dataSource
+     * @return RDBJobEventStorage instance
+     * @throws SQLException SQLException
+     */
+    public static RDBJobEventStorage getInstance(final DataSource dataSource) throws SQLException {
+        return wrapException(() -> STORAGE_MAP.computeIfAbsent(dataSource, ds -> {
+            try {
+                return new RDBJobEventStorage(ds);
+            } catch (SQLException e) {
+                throw new WrapException(e);
+            }
+        }));
+    }
+
+    /**
+     * WrapException util method.
+     *
+     * @param supplier supplier
+     * @return RDBJobEventStorage
+     * @throws SQLException SQLException
+     */
+    public static RDBJobEventStorage wrapException(final Supplier<RDBJobEventStorage> supplier) throws SQLException {
+        try {
+            return supplier.get();
+        } catch (WrapException e) {
+            if (e.getCause() instanceof SQLException) {
+                throw new SQLException(e.getCause());
+            }
+            throw e;
+        }
+    }
+
     private DatabaseType getDatabaseType(final DataSource dataSource) throws SQLException {
         try (Connection connection = dataSource.getConnection()) {
             String databaseProductName = connection.getMetaData().getDatabaseProductName();
diff --git a/elasticjob-ecosystem/elasticjob-tracing/elasticjob-tracing-rdb/src/test/java/org/apache/shardingsphere/elasticjob/tracing/rdb/storage/RDBJobEventStorageTest.java b/elasticjob-ecosystem/elasticjob-tracing/elasticjob-tracing-rdb/src/test/java/org/apache/shardingsphere/elasticjob/tracing/rdb/storage/RDBJobEventStorageTest.java
index 15ac7d35c..d649febf1 100644
--- a/elasticjob-ecosystem/elasticjob-tracing/elasticjob-tracing-rdb/src/test/java/org/apache/shardingsphere/elasticjob/tracing/rdb/storage/RDBJobEventStorageTest.java
+++ b/elasticjob-ecosystem/elasticjob-tracing/elasticjob-tracing-rdb/src/test/java/org/apache/shardingsphere/elasticjob/tracing/rdb/storage/RDBJobEventStorageTest.java
@@ -49,7 +49,7 @@ public final class RDBJobEventStorageTest {
         dataSource.setUrl("jdbc:h2:mem:job_event_storage");
         dataSource.setUsername("sa");
         dataSource.setPassword("");
-        storage = new RDBJobEventStorage(dataSource);
+        storage = RDBJobEventStorage.getInstance(dataSource);
     }
     
     @After