validator/src/main/java/org/apache/skywalking/plugin/test/agent/tool/validator/entity/Data.java

/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You 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 org.apache.skywalking.plugin.test.agent.tool.validator.entity;

import java.io.FileNotFoundException;
import org.apache.skywalking.plugin.test.agent.tool.validator.exception.IllegalDataFileException;
import org.yaml.snakeyaml.TypeDescription;
import org.yaml.snakeyaml.Yaml;
import org.yaml.snakeyaml.constructor.Constructor;
import org.yaml.snakeyaml.representer.Representer;

import java.io.File;
import java.io.FileInputStream;
import java.io.InputStream;
import java.util.List;

public interface Data {
    List<SegmentItem> segmentItems();
    List<MeterItem> meterItems();

    class Loader {
        public static Data loadData(File file) {
            try {
                return loadData(new FileInputStream(file));
            } catch (FileNotFoundException e) {
                throw new IllegalDataFileException(file.getName());
            }
        }

        public static Data loadData(InputStream inputStream) {
            Constructor constructor = new Constructor(DataForRead.class);
            TypeDescription configDescription = new TypeDescription(DataForRead.class);
            configDescription.putListPropertyType("data", DataForRead.class);

            Representer representer = new Representer();
            representer.getPropertyUtils().setSkipMissingProperties(true);
            Yaml yaml = new Yaml(constructor, representer);
            return yaml.loadAs(inputStream, DataForRead.class);
        }
    }
}