scouter.server.db.span.ZipkinSpanDataWriter.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.span
import java.util
import scouter.server.db.io.RealDataFile
import scouter.util.{FileUtil, IClose}
/**
* @author Gun Lee ([email protected]) on 27/10/2018
*/
object ZipkinSpanDataWriter {
val table = new util.Hashtable[String, ZipkinSpanDataWriter]()
def open(date: String, file: String): ZipkinSpanDataWriter = {
table.synchronized {
var writer = table.get(file)
if (writer != null) {
writer.ref += 1
} else {
writer = new ZipkinSpanDataWriter(date, file)
table.put(file, writer)
}
writer
}
}
}
class ZipkinSpanDataWriter(date: String, filePathName: String) extends IClose {
var ref = 0
val out: RealDataFile = new RealDataFile(filePathName + ".data")
def write(bytes: Array[Byte]): Long = {
this.synchronized {
val point = out.getOffset()
out.writeShort(bytes.length.toShort)
out.write(bytes)
out.flush()
point
}
}
override def close(): Unit = {
ZipkinSpanDataWriter.table.synchronized {
if (this.ref == 0) {
ZipkinSpanDataWriter.table.remove(this.filePathName)
FileUtil.close(out)
} else {
this.ref -= 1
}
}
}
}