scray.hdfs.io.osgi.ReadServiceFactory.scala Maven / Gradle / Ivy
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scray adapter to write BLOBs to HDFS
// See the LICENCE.txt file distributed with this work for additional
// information regarding copyright ownership.
//
// 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 scray.hdfs.io.osgi
import scray.hdfs.io.index.format.sequence.SequenceFileWriter
import org.osgi.framework.ServiceRegistration
import org.osgi.framework.Bundle
import org.apache.hadoop.io.BytesWritable
import org.apache.hadoop.io.Text
import scray.hdfs.io.index.format.sequence.mapping.impl.OutputTextBytesWritable
import scray.hdfs.io.index.format.Writer
import scray.hdfs.io.write.WriteService
import scray.hdfs.io.write.IHdfsWriterConstats
import scray.hdfs.io.read.ReadService
class ReadServiceFactory extends org.osgi.framework.ServiceFactory[ReadService] {
var reader: ReadServiceImpl = null
def getService(bundle: Bundle, reg: ServiceRegistration[ReadService]): ReadService = {
println("Provide service")
val destinationPath = bundle.getBundleContext.getProperty(IHdfsWriterConstats.WriteParameter.destinationPath.toString)
try {
reader = new ReadServiceImpl
} catch {
case e: Exception => println("Error while creating reader " + e)
}
reader
}
def ungetService(bundle: Bundle, reg: ServiceRegistration[ReadService], writer: ReadService): Unit = {
}
def close = {
}
}
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