/*
* 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.facebook.presto.resourceGroups;
import com.facebook.presto.spi.resourceGroups.ResourceGroupId;
import com.facebook.presto.spi.resourceGroups.SelectionContext;
import com.fasterxml.jackson.annotation.JsonCreator;
import com.google.common.base.Joiner;
import com.google.common.base.Splitter;
import com.google.common.collect.ImmutableList;
import java.util.List;
import java.util.Objects;
import java.util.stream.Collectors;
import static com.google.common.base.Preconditions.checkArgument;
import static java.lang.String.format;
import static java.util.Objects.requireNonNull;
public class ResourceGroupIdTemplate
{
private final List<ResourceGroupNameTemplate> segments;
@JsonCreator
public ResourceGroupIdTemplate(String fullId)
{
List<String> segments = Splitter.on(".").splitToList(requireNonNull(fullId, "fullId is null"));
checkArgument(!segments.isEmpty(), "Resource group id is empty");
this.segments = segments.stream()
.map(ResourceGroupNameTemplate::new)
.collect(Collectors.toList());
}
public static ResourceGroupIdTemplate forSubGroupNamed(ResourceGroupIdTemplate parent, String name)
{
return new ResourceGroupIdTemplate(format("%s.%s", requireNonNull(parent, "parent is null"), requireNonNull(name, "name is null")));
}
public static ResourceGroupIdTemplate fromSegments(List<ResourceGroupNameTemplate> segments)
{
return new ResourceGroupIdTemplate(String.join(".", segments.stream().map(ResourceGroupNameTemplate::toString).collect(Collectors.toList())));
}
public ResourceGroupId expandTemplate(SelectionContext context)
{
ResourceGroupId id = null;
for (ResourceGroupNameTemplate segment : segments) {
String expanded = segment.expandTemplate(context);
if (id == null) {
id = new ResourceGroupId(expanded);
}
else {
id = new ResourceGroupId(id, expanded);
}
}
return id;
}
public List<ResourceGroupNameTemplate> getSegments()
{
return ImmutableList.copyOf(segments);
}
@Override
public String toString()
{
return Joiner.on(".").join(segments);
}
@Override
public boolean equals(Object o)
{
if (this == o) {
return true;
}
if (o == null || getClass() != o.getClass()) {
return false;
}
ResourceGroupIdTemplate that = (ResourceGroupIdTemplate) o;
return Objects.equals(segments, that.segments);
}
@Override
public int hashCode()
{
return Objects.hash(segments);
}
}