org.netxms.websvc.json.adapters.InetAddressAdapter.java Source code

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Here is the source code for org.netxms.websvc.json.adapters.InetAddressAdapter.java

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/**
 * NetXMS - open source network management system
 * Copyright (C) 2003-2017 Raden Solutions
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 */
package org.netxms.websvc.json.adapters;

import java.io.IOException;
import java.net.InetAddress;
import java.net.UnknownHostException;
import com.google.gson.TypeAdapter;
import com.google.gson.stream.JsonReader;
import com.google.gson.stream.JsonToken;
import com.google.gson.stream.JsonWriter;

/**
 * Type adapter for InetAddress class
 */
public class InetAddressAdapter extends TypeAdapter<InetAddress> {
    /* (non-Javadoc)
     * @see com.google.gson.TypeAdapter#write(com.google.gson.stream.JsonWriter, java.lang.Object)
     */
    @Override
    public void write(JsonWriter writer, InetAddress value) throws IOException {
        if (value == null) {
            writer.nullValue();
            return;
        }
        writer.value(value.getHostAddress());
    }

    /* (non-Javadoc)
     * @see com.google.gson.TypeAdapter#read(com.google.gson.stream.JsonReader)
     */
    @Override
    public InetAddress read(JsonReader reader) throws IOException {
        if (reader.peek() == JsonToken.NULL) {
            reader.nextNull();
            return null;
        }

        try {
            return InetAddress.getByName(reader.nextString());
        } catch (UnknownHostException e) {
            return null;
        }
    }
}