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/*
* Copyright 2016-2017, Nokia Corporation
*
* 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 org.onap.vfc.nfvo.driver.vnfm.svnfm.nokia.onap.core;
import org.springframework.beans.factory.InitializingBean;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.core.env.Environment;
import org.springframework.stereotype.Component;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.Map;
import java.util.function.Consumer;
import static com.google.common.base.Splitter.on;
import static com.google.common.collect.Lists.newArrayList;
/**
* Responsible for remapping IP/DNS names in URLs based on property file
*/
@Component
public class IpMappingProvider implements InitializingBean {
public static final String IP_MAP = "ipMap";
private final Environment environment;
private final Map<String, String> ipMap = new HashMap<>();
@Autowired
IpMappingProvider(Environment environment) {
this.environment = environment;
}
/**
* After the Bean has been initialized the IP mapping and the VMFM cache is initialized
* It is done in this phase because it requires the environment to be initialized
*/
@Override
public void afterPropertiesSet() throws Exception {
on(",").trimResults().omitEmptyStrings().split(environment.getProperty(IP_MAP, String.class, "")).forEach(new Consumer<String>() {
@Override
public void accept(String item) {
ArrayList<String> ip = newArrayList(on("->").trimResults().split(item));
ipMap.put(ip.get(0), ip.get(1));
}
});
}
/**
* Map IP addresses based on configuration parameter ipMap
*
* @param ip the original IP address
* @return the mapped IP address
*/
public String mapPrivateIpToPublicIp(String ip) {
return ipMap.getOrDefault(ip, ip);
}
}
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