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/*
* Copyright (c) 2018 Cisco Systems. All rights reserved.
*
* 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 com.cisco.ztt.meta
import org.apache.log4j.Logger
import org.springframework.core.io.support.PathMatchingResourcePatternResolver
import com.fasterxml.jackson.databind.ObjectMapper
import com.fasterxml.jackson.dataformat.yaml.YAMLFactory
import com.fasterxml.jackson.module.scala.DefaultScalaModule
case class Unit(
format: String,
input_topic: String,
processor: String,
output_topic: String,
publish_src: String,
timeseries_namespace: String,
xr_telemetry: Array[Telemetry],
ves_telemetry: Array[Telemetry])
case class Telemetry(path: String, keys: Option[Array[Item]], content: Array[Item])
case class Item(name: String, display_name: String, ts_name: String)
object YamlReader {
private[this] val logger = Logger.getLogger(getClass().getName());
val mapper: ObjectMapper = new ObjectMapper(new YAMLFactory())
mapper.registerModule(DefaultScalaModule)
def load(pattern: String = "classpath*:meta/*.yaml"): Metadata = {
val patternResolver = new PathMatchingResourcePatternResolver()
val mappingLocations = patternResolver.getResources(pattern)
val units = mappingLocations.map(loc => {
logger.info("Reading metadata " + loc)
mapper.readValue(loc.getInputStream, classOf[Unit])
});
new Metadata(units)
}
def parse(yaml: String): Unit = {
val meta: Unit = mapper.readValue(yaml, classOf[Unit])
meta
}
def dump(meta: Unit) = {
println(" input = " + meta.input_topic)
println("output = " + meta.output_topic)
meta.xr_telemetry.map(m => {
println(" path = " + m.path)
println("keys:")
m.keys.getOrElse(Array[Item]()).map(item => {
println(" " + item.name + " -> " + item.display_name)
});
println("content:")
m.content.map(item => {
println(" " + item.name + " -> " + item.display_name)
});
});
}
}
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