/*
* 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.brooklyn.core.location;
import static com.google.common.base.Preconditions.checkNotNull;
import java.util.Map;
import org.apache.brooklyn.api.location.Location;
import org.apache.brooklyn.api.location.LocationRegistry;
import org.apache.brooklyn.api.location.LocationResolver;
import org.apache.brooklyn.api.location.LocationSpec;
import org.apache.brooklyn.api.mgmt.ManagementContext;
import org.apache.brooklyn.api.typereg.RegisteredType;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* Given a location spec in the form {@code brooklyn.catalog:<symbolicName>:<version>},
* looks up the catalog to get its definition and creates such a location.
*/
public class CatalogLocationResolver implements LocationResolver {
private static final Logger log = LoggerFactory.getLogger(CatalogLocationResolver.class);
public static final String NAME = "brooklyn.catalog";
private ManagementContext managementContext;
@Override
public void init(ManagementContext managementContext) {
this.managementContext = checkNotNull(managementContext, "managementContext");
}
@Override
@SuppressWarnings({ "rawtypes", "unchecked" })
public Location newLocationFromString(Map locationFlags, String spec, LocationRegistry registry) {
String id = spec.substring(NAME.length()+1);
RegisteredType item = managementContext.getTypeRegistry().get(id);
if (item.isDisabled()) {
throw new IllegalStateException("Illegal use of disabled catalog item "+item.getSymbolicName()+":"+item.getVersion());
} else if (item.isDeprecated()) {
log.warn("Use of deprecated catalog item "+item.getSymbolicName()+":"+item.getVersion());
}
LocationSpec<?> origLocSpec = (LocationSpec) managementContext.getTypeRegistry().createSpec(item, null, LocationSpec.class);
LocationSpec locSpec = LocationSpec.create(origLocSpec)
.configure(locationFlags);
return managementContext.getLocationManager().createLocation(locSpec);
}
@Override
public String getPrefix() {
return NAME;
}
/**
* accepts anything that looks like it will be a YAML catalog item (e.g. starting "brooklyn.locations")
*/
@Override
public boolean accepts(String spec, LocationRegistry registry) {
if (BasicLocationRegistry.isResolverPrefixForSpec(this, spec, false)) return true;
if (registry.getDefinedLocationByName(spec)!=null) return true;
return false;
}
}