scouter.server.db.io.RealDataFile.scala 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;
import java.io.BufferedOutputStream;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import scouter.io.DataOutputX;
import scouter.util.IClose;
class RealDataFile(_filename: String) extends IClose {
val filename = _filename;
private var offset = new File(filename).length();
private val out = new DataOutputX(new BufferedOutputStream(new FileOutputStream(filename, true), 8192));
def getOffset(): Long = {
this.synchronized {
return offset;
}
}
def writeShort(s: Short): Long = {
this.synchronized {
val idx = offset;
offset += 2;
out.writeShort(s);
return idx;
}
}
def writeInt(i: Int): Long = {
this.synchronized {
val idx = offset;
offset += 4;
out.writeInt(i);
return idx;
}
}
def write(data: Array[Byte]): Long = {
this.synchronized {
val idx = offset;
offset += data.length;
out.write(data);
return idx;
}
}
override def close() {
try {
if (out != null)
out.close();
} catch {
case e: Exception =>
}
}
def flush() {
out.flush();
}
}