| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You 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 org.apache.ignite.ml; |
| |
| import java.io.FileInputStream; |
| import java.io.FileOutputStream; |
| import java.io.IOException; |
| import java.io.ObjectInputStream; |
| import java.io.ObjectOutputStream; |
| import org.apache.ignite.IgniteLogger; |
| |
| /** |
| * Implementation of exporter to/from file. |
| * |
| * Default implementation of {@link Exporter}. |
| */ |
| public class FileExporter<D> implements Exporter<D, String> { |
| /** */ |
| private IgniteLogger log; |
| |
| /** |
| * @param log Logger. |
| */ |
| public void setLog(IgniteLogger log) { |
| this.log = log; |
| } |
| |
| /** {@inheritDoc} */ |
| @Override public void save(D d, String path) { |
| try (FileOutputStream fos = new FileOutputStream(path)) { |
| try (ObjectOutputStream outStream = new ObjectOutputStream(fos)) { |
| outStream.writeObject(d); |
| } |
| } |
| catch (IOException e) { |
| if (log != null) |
| log.error("Error opening file.", e); |
| } |
| } |
| |
| /** {@inheritDoc} */ |
| @Override public D load(String path) { |
| D mdl = null; |
| |
| try (FileInputStream fis = new FileInputStream(path)) { |
| try (ObjectInputStream inputStream = new ObjectInputStream(fis)) { |
| mdl = (D)inputStream.readObject(); |
| } |
| catch (ClassNotFoundException e) { |
| if (log != null) |
| log.error("Object creation failed.", e); |
| } |
| } |
| catch (IOException e) { |
| if (log != null) |
| log.error("Error opening file.", e); |
| } |
| return mdl; |
| } |
| } |