com.hazelcast.client.spi.impl.AwsAddressProvider Maven / Gradle / Ivy
/*
* Copyright (c) 2008-2015, Hazelcast, Inc. All Rights Reserved.
*
* 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.hazelcast.client.spi.impl;
import com.hazelcast.aws.AWSClient;
import com.hazelcast.client.config.ClientAwsConfig;
import com.hazelcast.client.connection.AddressProvider;
import com.hazelcast.client.util.AddressHelper;
import com.hazelcast.logging.ILogger;
import com.hazelcast.logging.Logger;
import java.net.InetSocketAddress;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Collections;
import java.util.Map;
import java.util.logging.Level;
/**
* Aws Address Loader. Calls aws api to load ip addresses related to given credentials.
*/
public class AwsAddressProvider implements AddressProvider {
private static final ILogger LOGGER = Logger.getLogger(AwsAddressProvider.class);
private final AWSClient awsClient;
private volatile Map privateToPublic;
public AwsAddressProvider(ClientAwsConfig awsConfig) {
awsClient = new AWSClient(awsConfig);
}
@Override
public Collection loadAddresses() {
updateLookupTable();
final Map lookupTable = getLookupTable();
final Collection addresses = new ArrayList(lookupTable.size());
for (String privateAddress : lookupTable.keySet()) {
addresses.addAll(AddressHelper.getSocketAddresses(privateAddress));
}
return addresses;
}
private Map getLookupTable() {
Map table = privateToPublic;
return table != null ? table : Collections.emptyMap();
}
private void updateLookupTable() {
try {
privateToPublic = awsClient.getAddresses();
} catch (Exception e) {
LOGGER.log(Level.WARNING, "Aws addresses are failed to load : " + e.getMessage());
}
}
}