net.dongliu.commons.Marshaller Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of commons Show documentation

There is a newer version: 12.0.2

package net.dongliu.commons;

import net.dongliu.commons.exception.UncheckedReflectionException;

import javax.annotation.Nullable;
import java.io.*;

/**
 * Marshal and Unmarshal using jvm serialization
 *
 * @author Liu Dong
 */
public class Marshaller {

    /**
     * Marshal object to bytes
     */
    public static byte[] marshal(@Nullable Object value) {
        try (ByteArrayOutputStream bos = new ByteArrayOutputStream();
             ObjectOutputStream oos = new ObjectOutputStream(bos)) {
            oos.writeObject(value);
            return bos.toByteArray();
        } catch (IOException e) {
            throw new UncheckedIOException(e);
        }
    }

    /**
     * Marshal object to bytes. output will be closed after write finished
     */
    public static void marshal(OutputStream output, @Nullable Object value) {
        try (ObjectOutputStream oos = new ObjectOutputStream(output)) {
            oos.writeObject(value);
        } catch (IOException e) {
            throw new UncheckedIOException(e);
        }
    }

    /**
     * Unmarshal bytes to object
     */
    public static Object unmarshal(byte[] bytes) {
        try (ByteArrayInputStream bis = new ByteArrayInputStream(bytes);
             ObjectInputStream ois = new ObjectInputStream(bis)) {
            return ois.readObject();
        } catch (IOException e) {
            throw new UncheckedIOException(e);
        } catch (ClassNotFoundException e) {
            throw new UncheckedReflectionException(e);
        }
    }

    /**
     * Unmarshal to object from input stream. input will be closed after read finished
     */
    public static Object unmarshal(InputStream input) {
        try (ObjectInputStream ois = new ObjectInputStream(input)) {
            return ois.readObject();
        } catch (IOException e) {
            throw new UncheckedIOException(e);
        } catch (ClassNotFoundException e) {
            throw new UncheckedReflectionException(e);
        }
    }
}