com.wl4g.infra.common.serialize.JdkSerializeUtils Maven / Gradle / Ivy
/*
* Copyright 2017 ~ 2025 the original author or authors. James Wong
*
* Licensed 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 com.wl4g.infra.common.serialize;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import java.lang.reflect.Method;
import org.apache.commons.lang3.StringUtils;
/**
* Object manipulation tool class
*
* @author James Wong James Wong
* @version v1.0
* @time 2017年4月13日
* @since
*/
public abstract class JdkSerializeUtils {
/**
* Annotate to object copying, only copy the methods that match.
*
* @param annotation
* @param object
*/
public static void annotationToObject(Object annotation, Object object) {
if (annotation != null && object != null) {
Class annotationClass = annotation.getClass();
Class objectClass = object.getClass();
if (objectClass != null) {
for (Method m : objectClass.getMethods()) {
if (StringUtils.startsWith(m.getName(), "set")) {
try {
String s = StringUtils.uncapitalize(StringUtils.substring(m.getName(), 3));
Object obj = annotationClass.getMethod(s).invoke(annotation);
if (obj != null && !"".equals(obj.toString())) {
if (object == null) {
object = objectClass.newInstance();
}
m.invoke(object, obj);
}
} catch (Exception e) {
// 忽略所有设置失败方法
}
}
}
}
}
}
/**
* Serialized object
*
* @param object
* @return
*/
public static byte[] serialize(Object object) {
ObjectOutputStream oos = null;
ByteArrayOutputStream baos = null;
try {
if (object != null) {
baos = new ByteArrayOutputStream();
oos = new ObjectOutputStream(baos);
oos.writeObject(object);
return baos.toByteArray();
}
} catch (Exception e) {
throw new IllegalStateException(e);
} finally {
try {
if (oos != null)
oos.close();
oos = null;
} catch (IOException e) {
throw new IllegalStateException(e);
}
try {
if (baos != null)
baos.close();
baos = null;
} catch (IOException e) {
throw new IllegalStateException(e);
}
}
return null;
}
/**
* Deserialized object
*
* @param bytes
* @return
*/
public static Object unserialize(byte[] bytes) {
ByteArrayInputStream bais = null;
ObjectInputStream ois = null;
try {
if (bytes != null && bytes.length > 0) {
bais = new ByteArrayInputStream(bytes);
ois = new ObjectInputStream(bais);
return ois.readObject();
}
} catch (Throwable e) {
throw new IllegalStateException(e);
} finally {
try {
if (ois != null)
ois.close();
ois = null;
} catch (IOException e) {
throw new IllegalStateException(e);
}
try {
if (bais != null)
bais.close();
bais = null;
} catch (IOException e) {
throw new IllegalStateException(e);
}
}
return null;
}
}