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cn.chahuyun.hibernateplus.Configuration Maven / Gradle / Ivy
package cn.chahuyun.hibernateplus;
import lombok.Getter;
import lombok.Setter;
import java.io.File;
import java.io.IOException;
import java.net.URL;
import java.net.URLDecoder;
import java.nio.charset.StandardCharsets;
import java.util.Enumeration;
import java.util.HashSet;
import java.util.Properties;
import java.util.Set;
import java.util.jar.JarEntry;
import java.util.jar.JarFile;
/**
* @author Moyuyanli
* @date 2024/7/18 14:07
*/
@Getter
@Setter
public class Configuration {
/**
* 驱动类型
*/
private DriveType driveType;
/**
* 地址
*/
private String address;
/**
* 用户名
*/
private String user;
/**
* 密码
*/
private String password;
/**
* 包含实体的包名
*/
private String packageName;
/**
* 实现本类
*/
private Class baseClass;
/**
* 类加载器
*/
private ClassLoader classLoader;
/**
* 数据库自动重连
*/
private boolean isAutoReconnect = false;
public Configuration(Class baseClass) {
setBaseClass(baseClass);
}
/**
* 转换为 properties
*
* @return Properties
*/
protected Properties toProperties() {
if (driveType == null) {
throw new RuntimeException("数据库配置:驱动类型为空!");
}
if (address == null) {
throw new RuntimeException("数据库配置:数据库地址为空!");
}
Properties properties = new Properties();
String url;
if (isAutoReconnect) {
url = driveType.getUrlPrefix() + address + "?autoReconnect=true";
} else {
url = driveType.getUrlPrefix() + address;
}
switch (driveType) {
case H2:
properties.setProperty("hibernate.connection.url", url);
properties.setProperty("hibernate.connection.driver_class", driveType.getDriverClass());
properties.setProperty("hibernate.dialect", "org.hibernate.community.dialect.SQLiteDialect");
properties.setProperty("hibernate.connection.provider_class", "org.hibernate.hikaricp.internal.HikariCPConnectionProvider");
properties.setProperty("hibernate.connection.isolation", "1");
properties.setProperty("hibernate.hbm2ddl.auto", "update");
properties.setProperty("hibernate-connection-autocommit", "true");
break;
case SQLITE:
properties.setProperty("hibernate.connection.url", url);
properties.setProperty("hibernate.connection.driver_class", driveType.getDriverClass());
properties.setProperty("hibernate.dialect", "org.hibernate.dialect.H2Dialect");
properties.setProperty("hibernate.connection.provider_class", "org.hibernate.hikaricp.internal.HikariCPConnectionProvider");
properties.setProperty("hibernate.hikari.connectionTimeout", "180000");
properties.setProperty("hibernate.connection.isolation", "1");
properties.setProperty("hibernate.hbm2ddl.auto", "update");
properties.setProperty("hibernate-connection-autocommit", "true");
if (user != null) {
properties.setProperty("hibernate.connection.username", user);
}
if (password != null) {
properties.setProperty("hibernate.connection.password", password);
}
properties.setProperty("hibernate.autoReconnect", "true");
properties.setProperty("hibernate.connection.username", "");
properties.setProperty("hibernate.connection.password", "");
properties.setProperty("hibernate.current_session_context_class", "thread");
break;
case MYSQL:
properties.setProperty("hibernate.connection.url", url);
properties.setProperty("hibernate.connection.driver_class", driveType.getDriverClass());
// properties.setProperty("hibernate.dialect", "org.hibernate.dialect.MySQL8Dialect");
properties.setProperty("hibernate.connection.CharSet", "utf8mb4");
properties.setProperty("hibernate.connection.useUnicode", "true");
properties.setProperty("hibernate.connection.username", user);
properties.setProperty("hibernate.connection.password", password);
properties.setProperty("hibernate.connection.provider_class", "org.hibernate.hikaricp.internal.HikariCPConnectionProvider");
properties.setProperty("hibernate.connection.isolation", "1");
properties.setProperty("hibernate.hbm2ddl.auto", "update");
properties.setProperty("hibernate.autoReconnect", "true");
break;
}
return properties;
}
public void setBaseClass(Class baseClass) {
this.baseClass = baseClass;
this.classLoader = baseClass.getClassLoader();
}
protected String resolvePackageName() {
if (packageName != null) {
return packageName;
}
if (baseClass == null) {
throw new RuntimeException("baseClass is null !");
}
this.packageName = baseClass.getPackageName();
String packagePath = this.packageName.replace('.', '/');
String[] keywords = {"entry", "entity", "entities", "model", "models", "bean", "beans", "dto"};
for (String keyword : keywords) {
URL resource = classLoader.getResource(packagePath + '/' + keyword);
if (resource != null) {
return packageName + '.' + keyword;
}
}
return packageName;
}
/**
* 根据classLoader寻找带有{@link jakarta.persistence.Entity}的实体类
*
* @return 类set
*/
@Deprecated(since = "1.0.7")
protected Set> toEntityClass() {
if (classLoader == null) {
throw new RuntimeException("数据库配置:类加载器(classLoader)为空!");
}
Set> entityClasses;
if (packageName == null || packageName.trim().isBlank()) {
entityClasses = findEntityClasses(classLoader);
} else {
entityClasses = loadEntitiesFromPackage(classLoader, packageName);
}
if (entityClasses.isEmpty()) {
throw new RuntimeException("class scan is empty !");
}
return entityClasses;
}
private Set> findEntityClasses(ClassLoader classLoader) {
Set> allClasses = new HashSet<>();
try {
Enumeration resources = classLoader.getResources("");
while (resources.hasMoreElements()) {
URL resource = resources.nextElement();
if ("file".equals(resource.getProtocol())) {
File directory = new File(URLDecoder.decode(resource.getFile(), StandardCharsets.UTF_8));
findAndAddClassesInPackageByFile(directory, packageName, allClasses);
} else if ("jar".equals(resource.getProtocol())) {
String jarPath = URLDecoder.decode(resource.getPath(), StandardCharsets.UTF_8);
findAndAddClassesInPackageByJar(jarPath.substring(5, jarPath.indexOf("!")), null, allClasses);
}
}
} catch (IOException e) {
throw new RuntimeException("Error loading entities from package", e);
}
return allClasses;
}
private Set> loadEntitiesFromPackage(ClassLoader classLoader, String packageName) {
Set> classes = new HashSet<>();
try {
String path = packageName.replace('.', '/');
Enumeration resources = classLoader.getResources(path);
while (resources.hasMoreElements()) {
URL resource = resources.nextElement();
if ("file".equals(resource.getProtocol())) {
File directory = new File(URLDecoder.decode(resource.getFile(), StandardCharsets.UTF_8));
findAndAddClassesInPackageByFile(directory, packageName, classes);
} else if ("jar".equals(resource.getProtocol())) {
String jarPath = URLDecoder.decode(resource.getPath(), StandardCharsets.UTF_8);
findAndAddClassesInPackageByJar(jarPath.substring(5, jarPath.indexOf("!")), packageName, classes);
}
}
} catch (IOException e) {
throw new RuntimeException("Error loading entities from package", e);
}
return classes;
}
private void findAndAddClassesInPackageByJar(String jarPath, String packageName, Set> classes) {
try (JarFile jarFile = new JarFile(jarPath)) {
Enumeration entries = jarFile.entries();
while (entries.hasMoreElements()) {
JarEntry entry = entries.nextElement();
String name = entry.getName();
if (noPackNameScanEntity(packageName)) continue;
if (name.endsWith(".class") && name.startsWith(packageName.replace('.', '/') + "/")) {
String className = name.substring(0, name.indexOf(".class")).replace('/', '.');
try {
Class clazz = Class.forName(className, false, classLoader);
if (clazz.isAnnotationPresent(jakarta.persistence.Entity.class)) {
classes.add(clazz);
}
} catch (ClassNotFoundException e) {
throw new RuntimeException("Error loading class", e);
}
}
}
} catch (IOException e) {
throw new RuntimeException("Error processing JAR file", e);
}
}
private boolean noPackNameScanEntity(String packageName) {
if (packageName != null && this.packageName == null) {
String[] subPackageNames = {"entry", "entity", "entities", "model", "models", "bean", "beans", "dto"};
boolean isContinue = true;
for (String subPackageName : subPackageNames) {
if (packageName.lastIndexOf(subPackageName) != -1) {
isContinue = false;
break;
}
}
return isContinue;
}
return false;
}
private void findAndAddClassesInPackageByFile(File directory, String packageName, Set> classes) {
File[] files = directory.listFiles();
if (files != null) {
for (File file : files) {
if (file.isDirectory()) {
String nPackageName = packageName == null ? file.getName() : packageName + "." + file.getName();
findAndAddClassesInPackageByFile(file, nPackageName, classes);
} else {
if (noPackNameScanEntity(packageName)) break;
if (file.getName().endsWith(".class")) {
String className = packageName + '.' + file.getName().substring(0, file.getName().length() - 6);
try {
Class aClass = Class.forName(className);
if (aClass.isAnnotationPresent(jakarta.persistence.Entity.class)) {
classes.add(aClass);
}
} catch (ClassNotFoundException e) {
throw new RuntimeException("Error loading class", e);
}
}
}
}
}
}
}
