/*
* 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 gobblin.broker;
import java.util.Collection;
import java.util.List;
import java.util.Set;
import com.google.common.collect.Lists;
import com.google.common.collect.Sets;
import gobblin.broker.iface.ScopeInstance;
import gobblin.broker.iface.ScopeType;
import javax.annotation.Nullable;
import lombok.AllArgsConstructor;
/**
* Simple {@link ScopeType} topology with only two levels.
*/
@AllArgsConstructor
public enum SimpleScopeType implements ScopeType<SimpleScopeType> {
GLOBAL("global"),
LOCAL("local", GLOBAL);
private static final Set<SimpleScopeType> LOCAL_SCOPES = Sets.newHashSet(LOCAL);
private final List<SimpleScopeType> parentScopes;
private final String defaultId;
SimpleScopeType(String defaultId, SimpleScopeType... parentScopes) {
this.defaultId = defaultId;
this.parentScopes = Lists.newArrayList(parentScopes);
}
@Override
public boolean isLocal() {
return LOCAL_SCOPES.contains(this);
}
@Override
public Collection<SimpleScopeType> parentScopes() {
return this.parentScopes;
}
@Nullable
@Override
public ScopeInstance defaultScopeInstance() {
return this.defaultId == null ? null : new SimpleScope(this, this.defaultId);
}
@Override
public SimpleScopeType rootScope() {
return GLOBAL;
}
}