/*
* Copyright 2014 the original author or authors.
*
* 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 org.gradle.platform.base.internal;
import com.google.common.collect.Lists;
import org.gradle.api.InvalidUserDataException;
import org.gradle.api.NamedDomainObjectSet;
import org.gradle.api.specs.Spec;
import org.gradle.platform.base.Platform;
import org.gradle.platform.base.PlatformContainer;
import org.gradle.util.CollectionUtils;
import java.util.List;
public class DefaultPlatformResolvers implements PlatformResolvers {
private final List<PlatformResolver<?>> platformResolvers = Lists.newArrayList();
private final PlatformContainer platforms;
public DefaultPlatformResolvers(PlatformContainer platforms) {
this.platforms = platforms;
}
@Override
public void register(PlatformResolver<?> platformResolver) {
platformResolvers.add(platformResolver);
}
@Override
public <T extends Platform> T resolve(Class<T> type, PlatformRequirement platformRequirement) {
for (PlatformResolver<?> platformResolver : platformResolvers) {
if (platformResolver.getType().equals(type)) {
@SuppressWarnings("unchecked") PlatformResolver<T> pr = (PlatformResolver<T>) platformResolver;
T resolved = pr.resolve(platformRequirement);
if (resolved != null) {
return resolved;
}
}
}
return resolveFromContainer(type, platformRequirement);
}
private <T extends Platform> T resolveFromContainer(Class<T> type, PlatformRequirement platformRequirement) {
final String target = platformRequirement.getPlatformName();
NamedDomainObjectSet<T> allWithType = platforms.withType(type);
T matching = CollectionUtils.findFirst(allWithType, new Spec<T>() {
public boolean isSatisfiedBy(T element) {
return element.getName().equals(target);
}
});
if (matching == null) {
throw new InvalidUserDataException(String.format("Invalid %s: %s", type.getSimpleName(), target));
}
return matching;
}
}