org.nd4j.common.util.SerializationUtils Maven / Gradle / Ivy
/*
* ******************************************************************************
* *
* *
* * This program and the accompanying materials are made available under the
* * terms of the Apache License, Version 2.0 which is available at
* * https://www.apache.org/licenses/LICENSE-2.0.
* *
* * See the NOTICE file distributed with this work for additional
* * information regarding copyright ownership.
* * 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.
* *
* * SPDX-License-Identifier: Apache-2.0
* *****************************************************************************
*/
package org.nd4j.common.util;
import org.apache.commons.io.FileUtils;
import java.io.*;
public class SerializationUtils {
protected SerializationUtils() {}
@SuppressWarnings("unchecked")
public static T readObject(File file) {
try {
ObjectInputStream ois = new ObjectInputStream(FileUtils.openInputStream(file));
T ret = (T) ois.readObject();
ois.close();
return ret;
} catch (Exception e) {
throw new RuntimeException(e);
}
}
/**
* Reads an object from the given input stream
* @param is the input stream to read from
* @return the read object
*/
@SuppressWarnings("unchecked")
public static T readObject(InputStream is) {
try {
ObjectInputStream ois = new ObjectInputStream(is);
T ret = (T) ois.readObject();
ois.close();
return ret;
} catch (Exception e) {
throw new RuntimeException(e);
}
}
/**
* Converts the given object to a byte array
* @param toSave the object to save
*/
public static byte[] toByteArray(Serializable toSave) {
try {
ByteArrayOutputStream bos = new ByteArrayOutputStream();
ObjectOutputStream os = new ObjectOutputStream(bos);
os.writeObject(toSave);
byte[] ret = bos.toByteArray();
os.close();
return ret;
} catch (Exception e) {
throw new RuntimeException(e);
}
}
/**
* Deserializes object from byte array
* @param bytes
* @param
* @return
*/
public static T fromByteArray(byte[] bytes) {
return readObject(new ByteArrayInputStream(bytes));
}
/**
* Deserializes object from byte array
* @param bytes
* @param
* @return
*/
public static T deserialize(byte[] bytes) {
return fromByteArray(bytes);
}
/**
* Deserializes object from InputStream
* @param bytes
* @param
* @return
*/
public static T deserialize(InputStream is) {
return readObject(is);
}
/**
* Writes the object to the output stream
* THIS DOES NOT FLUSH THE STREAM
* @param toSave the object to save
* @param writeTo the output stream to write to
*/
public static void writeObject(Serializable toSave, OutputStream writeTo) {
try {
ObjectOutputStream os = new ObjectOutputStream(writeTo);
os.writeObject(toSave);
} catch (Exception e) {
throw new RuntimeException(e);
}
}
/**
* Writes the object to the output stream
* THIS DOES NOT FLUSH THE STREAM
* @param toSave the object to save
* @param writeTo the output stream to write to
*/
public static void serialize(Serializable object, OutputStream os) {
writeObject(object, os);
}
public static void saveObject(Object toSave, File saveTo) {
try {
OutputStream os1 = FileUtils.openOutputStream(saveTo);
ObjectOutputStream os = new ObjectOutputStream(os1);
os.writeObject(toSave);
os.flush();
os.close();
os1.close();
} catch (Exception e) {
throw new RuntimeException(e);
}
}
}