org.ff4j.utils.IOUtil Maven / Gradle / Ivy
package org.ff4j.utils;
/*
* #%L
* ff4j-core
* %%
* Copyright (C) 2013 - 2016 FF4J
* %%
* 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.
* #L%
*/
import java.net.InetAddress;
import java.net.UnknownHostException;
/**
* Utilities to work with IO and Networking.
*
* @author Cedrick Lunven (@clunven)
*/
public class IOUtil {
/** Would like to use the Inet Component. */
private static boolean useInetAddress = true;
/**
* Static
*/
private IOUtil() {
}
/**
* Read hostName from JDK.
*
* @return
* current hostname
*/
public static String resolveHostName() {
try {
if (useInetAddress) {
return InetAddress.getLocalHost().getHostName();
}
throw new UnknownHostException("Do not use the Inet Adress");
} catch (UnknownHostException e) {
throw new IllegalArgumentException("Cannot find the target host by itself", e);
}
}
public static boolean isUseInetAddress() {
return useInetAddress;
}
public static void setUseInetAddress(boolean useInetAddress) {
IOUtil.useInetAddress = useInetAddress;
}
}