com.alipay.sofa.jraft.test.atomic.server.AtomicSnapshotFile Maven / Gradle / Ivy
/*
* 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 com.alipay.sofa.jraft.test.atomic.server;
import java.io.File;
import java.io.IOException;
import java.util.Arrays;
import java.util.Map;
import org.apache.commons.io.FileUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import com.alipay.sofa.jraft.test.atomic.command.CommandCodec;
/**
* atomic snapshot file
* @author boyan ([email protected])
*
* 2018-Apr-09 5:14:55 PM
*/
public class AtomicSnapshotFile {
private static final Logger LOG = LoggerFactory.getLogger(AtomicSnapshotFile.class);
private String path;
public AtomicSnapshotFile(String path) {
super();
this.path = path;
}
public String getPath() {
return this.path;
}
/**
* Save value to snapshot file.
* @param values
* @return
*/
public boolean save(Map values) {
try {
FileUtils.writeByteArrayToFile(new File(path), CommandCodec.encodeCommand(values));
return true;
} catch (IOException e) {
LOG.error("Fail to save snapshot", e);
return false;
}
}
@SuppressWarnings("unchecked")
public Map load() throws IOException {
byte[] bs = FileUtils.readFileToByteArray(new File(path));
if (bs != null && bs.length > 0) {
return CommandCodec.decodeCommand(bs, Map.class);
}
throw new IOException("Fail to load snapshot from " + path + ",content: " + Arrays.toString(bs));
}
}