brooklyn.util.xstream.Inet4AddressConverter Maven / Gradle / Ivy

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package brooklyn.util.xstream;

import java.net.Inet4Address;
import java.net.UnknownHostException;

import brooklyn.util.exceptions.Exceptions;

import com.thoughtworks.xstream.converters.Converter;
import com.thoughtworks.xstream.converters.MarshallingContext;
import com.thoughtworks.xstream.converters.UnmarshallingContext;
import com.thoughtworks.xstream.io.HierarchicalStreamReader;
import com.thoughtworks.xstream.io.HierarchicalStreamWriter;

public class Inet4AddressConverter implements Converter {

    @Override
    public boolean canConvert(@SuppressWarnings("rawtypes") Class type) {
        return type.equals(Inet4Address.class);
    }

    @Override
    public void marshal(Object source, HierarchicalStreamWriter writer, MarshallingContext context) {
        Inet4Address addr = (Inet4Address) source;
        writer.setValue(addr.getHostName()+"/"+addr.getHostAddress());
    }

    @Override
    public Object unmarshal(HierarchicalStreamReader reader, UnmarshallingContext context) {
        String hostSlashAddress = reader.getValue();
        int i = hostSlashAddress.indexOf('/');
        try {
            if (i==-1) {
                return Inet4Address.getByName(hostSlashAddress);
            } else {
                String host = hostSlashAddress.substring(0, i);
                String addrS = hostSlashAddress.substring(i+1);
                byte[] addr = new byte[4];
                String[] addrSI = addrS.split("\\.");
                for (int k=0; k<4; k++) addr[k] = (byte)(int)Integer.valueOf(addrSI[k]);
                return Inet4Address.getByAddress(host, addr);
            }
        } catch (UnknownHostException e) {
            throw Exceptions.propagate(e);
        }
    }

}