org.cmg.jresp.json.AddressDeserializer.java Source code

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Here is the source code for org.cmg.jresp.json.AddressDeserializer.java

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/**
 * Copyright (c) 2012 Concurrency and Mobility Group.
 * Universita' di Firenze
 *   
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 * 
 * Contributors:
 *      Michele Loreti
 */
package org.cmg.jresp.json;

import java.lang.reflect.Type;
import java.net.InetSocketAddress;

import org.cmg.jresp.topology.Address;
import org.cmg.jresp.topology.ServerPortAddress;
import org.cmg.jresp.topology.SocketPortAddress;
import org.cmg.jresp.topology.VirtualPortAddress;

import com.google.gson.JsonDeserializationContext;
import com.google.gson.JsonDeserializer;
import com.google.gson.JsonElement;
import com.google.gson.JsonObject;
import com.google.gson.JsonParseException;

/**
 * @author Michele Loreti
 *
 */
public class AddressDeserializer implements JsonDeserializer<Address> {

    @Override
    public Address deserialize(JsonElement json, Type typeOfT, JsonDeserializationContext context)
            throws JsonParseException {
        if (json.isJsonObject()) {
            JsonObject o = json.getAsJsonObject();
            return doDeserialize(o.get("addressCode").getAsString(), o, context);
        }
        throw new IllegalStateException("This is not an Address!");
    }

    private Address doDeserialize(String addressCode, JsonObject json, JsonDeserializationContext context) {
        if (addressCode == null) {
            throw new IllegalStateException("This is not an Address!");
        }
        if (addressCode.equals(SocketPortAddress.ADDRESS_CODE)) {
            return new SocketPortAddress(
                    new InetSocketAddress(json.get("host").getAsString(), json.get("port").getAsInt()));
        }
        if (addressCode.equals(ServerPortAddress.ADDRESS_CODE)) {
            return new ServerPortAddress(
                    new InetSocketAddress(json.get("host").getAsString(), json.get("port").getAsInt()));
        }
        if (addressCode.equals(VirtualPortAddress.ADDRESS_CODE)) {
            return new VirtualPortAddress((Integer) context.deserialize(json.get("id"), Integer.class));
        }
        throw new IllegalStateException("This is not an Address!");
    }

}