org.nd4j.autodiff.listeners.checkpoint.Checkpoint 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.autodiff.listeners.checkpoint;
import lombok.AllArgsConstructor;
import lombok.Data;
import java.io.Serializable;
import java.util.Arrays;
@AllArgsConstructor
@Data
public class Checkpoint implements Serializable {
private int checkpointNum;
private long timestamp;
private int iteration;
private int epoch;
private String filename;
public static String getFileHeader(){
return "checkpointNum,timestamp,iteration,epoch,filename";
}
public static Checkpoint fromFileString(String str){
String[] split = str.split(",");
if(split.length != 5){
throw new IllegalStateException("Cannot parse checkpoint entry: expected 5 entries, got " + split.length
+ " - values = " + Arrays.toString(split));
}
return new Checkpoint(
Integer.parseInt(split[0]),
Long.parseLong(split[1]),
Integer.parseInt(split[2]),
Integer.parseInt(split[3]),
split[4]);
}
public String toFileString(){
return checkpointNum + "," + timestamp + "," + iteration + "," + epoch + "," + filename;
}
}