scouter.server.db.io.zip.CountBoard Maven / Gradle / Ivy
/*
* Copyright 2015 the original author or authors.
* @https://github.com/scouter-project/scouter
*
* Licensed 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 scouter.server.db.io.zip;
import java.io.File;
import java.io.IOException;
import java.io.RandomAccessFile;
import scouter.util.FileUtil;
import scouter.util.IClose;
public class CountBoard implements IClose {
private RandomAccessFile raf = null;
public long counts;
protected File file;
public CountBoard(String date) throws IOException {
String filename = (GZipCtr.createPath(date) + "/count.dat");
this.file = new File(filename);
this.raf = new RandomAccessFile(file, "rw");
if (this.raf.length() >=8) {
try {
load();
} catch (IOException e) {
counts = 0;
e.printStackTrace();
}
} else {
counts = 0;
}
}
public long add(long cnt) {
return set(this.counts + cnt);
}
public long set(long cnt) {
this.counts = cnt;
try {
raf.seek(0);
raf.writeLong(counts);
} catch (Exception e) {
e.printStackTrace();
}
return this.counts;
}
private void load() throws IOException {
raf.seek(0);
counts = raf.readLong();
}
public long getCount() {
return this.counts;
}
public void close() {
FileUtil.close(this.raf);
this.raf=null;
}
}