/*
 * 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.dubbo.samples.merge;

import org.apache.dubbo.common.URL;
import org.apache.dubbo.common.extension.Activate;
import org.apache.dubbo.registry.AddressListener;
import org.apache.dubbo.registry.client.ServiceDiscoveryRegistryDirectory;
import org.apache.dubbo.rpc.cluster.Directory;

import java.util.List;
import java.util.concurrent.atomic.AtomicInteger;

@Activate
public class MyAddressListener implements AddressListener {
    private final static AtomicInteger addressSize = new AtomicInteger(0);

    @Override
    public List<URL> notify(List<URL> addresses, URL consumerUrl, Directory registryDirectory) {
        if (registryDirectory instanceof ServiceDiscoveryRegistryDirectory) {
            addressSize.set(addresses.size());
        }
        return addresses;
    }

    public static int getAddressSize() {
        return addressSize.get();
    }
}
