/*
* 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.jclouds.virtualbox.functions.admin;
import static com.google.common.base.Preconditions.checkNotNull;
import static com.google.common.base.Preconditions.checkState;
import java.util.List;
import java.util.Map;
import javax.inject.Inject;
import javax.inject.Singleton;
import org.jclouds.compute.domain.Image;
import org.jclouds.virtualbox.domain.YamlImage;
import org.jclouds.virtualbox.functions.YamlImagesFromFileConfig;
import org.yaml.snakeyaml.Loader;
import org.yaml.snakeyaml.TypeDescription;
import org.yaml.snakeyaml.Yaml;
import org.yaml.snakeyaml.constructor.Constructor;
import com.google.common.base.Supplier;
import com.google.common.collect.Maps;
/**
* @author Andrea Turli
*/
@Singleton
public class ImagesToYamlImagesFromYamlDescriptor implements Supplier<Map<Image, YamlImage>> {
private String yamlDescriptor;
@Inject
public ImagesToYamlImagesFromYamlDescriptor(YamlImagesFromFileConfig yamlDescriptorSupplier) {
this.yamlDescriptor = yamlDescriptorSupplier.get();
checkNotNull(yamlDescriptor, "yaml descriptor");
checkState(!yamlDescriptor.equals(""), "yaml descriptor is empty");
}
/**
* Type-safe config class for YAML
*
*/
public static class Config {
public List<YamlImage> images;
}
@Override
public Map<Image, YamlImage> get() {
Constructor constructor = new Constructor(Config.class);
TypeDescription imageDesc = new TypeDescription(YamlImage.class);
imageDesc.putListPropertyType("images", String.class);
constructor.addTypeDescription(imageDesc);
// Issue 855: testng is rev-locking us to snakeyaml 1.6
// we have to use old constructor until this is fixed
Yaml yaml = new Yaml(new Loader(constructor));
Config config = (Config) yaml.load(yamlDescriptor);
checkState(config != null, "missing config: class");
checkState(config.images != null, "missing images: collection");
Map<Image, YamlImage> backingMap = Maps.newLinkedHashMap();
for (YamlImage yamlImage : config.images) {
backingMap.put(YamlImage.toImage.apply(yamlImage), yamlImage);
}
return backingMap;
}
}