/*
* Copyright 2010 Proofpoint, Inc.
*
* 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 io.airlift.discovery.client;
import com.google.common.collect.ImmutableList;
import io.airlift.units.Duration;
import java.util.List;
import static java.lang.String.format;
import static java.util.Objects.requireNonNull;
public class ServiceDescriptors
{
private final String type;
private final String pool;
private final String eTag;
private final Duration maxAge;
private final List<ServiceDescriptor> serviceDescriptors;
public ServiceDescriptors(ServiceDescriptors serviceDescriptors,
Duration maxAge,
String eTag)
{
requireNonNull(serviceDescriptors, "serviceDescriptors is null");
this.type = serviceDescriptors.type;
this.pool = serviceDescriptors.pool;
this.maxAge = maxAge;
this.eTag = eTag;
this.serviceDescriptors = serviceDescriptors.serviceDescriptors;
}
public ServiceDescriptors(String type,
String pool,
List<ServiceDescriptor> serviceDescriptors,
Duration maxAge,
String eTag)
{
requireNonNull(type, "type is null");
requireNonNull(serviceDescriptors, "serviceDescriptors is null");
requireNonNull(maxAge, "maxAge is null");
this.type = type;
this.pool = pool;
this.serviceDescriptors = ImmutableList.copyOf(serviceDescriptors);
this.maxAge = maxAge;
this.eTag = eTag;
// verify service descriptors match expected type
for (ServiceDescriptor serviceDescriptor : this.serviceDescriptors) {
if (!type.equals(serviceDescriptor.getType()) || (pool != null && !pool.equals(serviceDescriptor.getPool()))) {
throw new DiscoveryException(format("Expected %s service descriptor from pool %s, but was %s service descriptor from pool %s",
type,
pool,
serviceDescriptor.getType(),
serviceDescriptor.getPool()));
}
}
}
public String getType()
{
return type;
}
public String getPool()
{
return pool;
}
public String getETag()
{
return eTag;
}
public Duration getMaxAge()
{
return maxAge;
}
public List<ServiceDescriptor> getServiceDescriptors()
{
return serviceDescriptors;
}
}