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add SafeConcurrentHashMap

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This commit is contained in:
Looly
2022-09-15 10:36:20 +08:00
parent cf0fc45080
commit 3b5ba16c93
41 changed files with 176 additions and 104 deletions
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10
hutool-db/src/main/java/cn/hutool/db/dialect/DialectFactory.java
View File

@@ -1,6 +1,7 @@
package cn.hutool.db.dialect;
import cn.hutool.core.classloader.ClassLoaderUtil;
import cn.hutool.core.map.SafeConcurrentHashMap;
import cn.hutool.core.regex.ReUtil;
import cn.hutool.core.text.StrUtil;
import cn.hutool.db.dialect.impl.AnsiSqlDialect;
@@ -16,7 +17,6 @@ import cn.hutool.log.StaticLog;
import javax.sql.DataSource;
import java.sql.Connection;
import java.util.Map;
import java.util.concurrent.ConcurrentHashMap;
/**
* 方言工厂类
@@ -26,7 +26,7 @@ import java.util.concurrent.ConcurrentHashMap;
*/
public class DialectFactory implements DriverNamePool{
private static final Map<DataSource, Dialect> DIALECT_POOL = new ConcurrentHashMap<>();
private static final Map<DataSource, Dialect> DIALECT_POOL = new SafeConcurrentHashMap<>();
private DialectFactory() {
}
@@ -170,11 +170,7 @@ public class DialectFactory implements DriverNamePool{
// 数据源作为锁的意义在于：不同数据源不会导致阻塞，相同数据源获取方言时可保证互斥
//noinspection SynchronizationOnLocalVariableOrMethodParameter
synchronized (ds) {
dialect = DIALECT_POOL.get(ds);
if(null == dialect) {
dialect = newDialect(ds);
DIALECT_POOL.put(ds, dialect);
}
dialect = DIALECT_POOL.computeIfAbsent(ds, DialectFactory::newDialect);
}
}
return dialect;

4
hutool-db/src/main/java/cn/hutool/db/ds/AbstractDSFactory.java
View File

@@ -2,6 +2,7 @@ package cn.hutool.db.ds;
import cn.hutool.core.lang.Assert;
import cn.hutool.core.map.MapUtil;
import cn.hutool.core.map.SafeConcurrentHashMap;
import cn.hutool.core.text.StrUtil;
import cn.hutool.db.DbRuntimeException;
import cn.hutool.db.DbUtil;
@@ -12,7 +13,6 @@ import cn.hutool.setting.Setting;
import javax.sql.DataSource;
import java.util.Collection;
import java.util.Map;
import java.util.concurrent.ConcurrentHashMap;
/**
* 抽象数据源工厂<br>
@@ -54,7 +54,7 @@ public abstract class AbstractDSFactory extends DSFactory {
DbUtil.setShowSqlGlobal(setting);
this.setting = setting;
this.dsMap = new ConcurrentHashMap<>();
this.dsMap = new SafeConcurrentHashMap<>();
}
/**

7
hutool-db/src/main/java/cn/hutool/db/meta/JdbcType.java
View File

@@ -1,7 +1,7 @@
package cn.hutool.db.meta;
import java.util.HashMap;
import java.util.Map;
import java.util.concurrent.ConcurrentHashMap;
/**
* JDBC中字段类型枚举
@@ -63,7 +63,8 @@ public enum JdbcType {
this.typeCode = code;
}
private static final Map<Integer, JdbcType> CODE_MAP = new ConcurrentHashMap<>(100, 1);
// 此处无写操作，使用HashMap没有线程安全问题
private static final Map<Integer, JdbcType> CODE_MAP = new HashMap<>(128, 1);
static {
for (final JdbcType type : JdbcType.values()) {
CODE_MAP.put(type.typeCode, type);
@@ -74,7 +75,7 @@ public enum JdbcType {
* 通过{@link java.sql.Types}中对应int值找到enum值
*
* @param code Jdbc type值
* @return {@link JdbcType}
* @return {@code JdbcType}
*/
public static JdbcType valueOf(final int code) {
return CODE_MAP.get(code);