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/**
* Copyright (c) 2014, University of Warsaw
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification, are permitted
* provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this list of
* conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice, this list of
* conditions and the following disclaimer in the documentation and/or other materials provided
* with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
* FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY
* WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package pl.edu.mimuw.cloudatlas.model;
import java.net.InetAddress;
import java.net.UnknownHostException;
import pl.edu.mimuw.cloudatlas.model.Value;
import pl.edu.mimuw.cloudatlas.model.ValueContact;
/**
* A class that represents a contact to a node. The contact consists of a full path name of this node and its IP
* address.
* <p>
* This class is immutable.
*/
public class ValueContact extends Value {
private final PathName name;
private final InetAddress address;
/**
* Constructs a new <code>ValueContact</code> with the specified path name and IP address.
*
* @param name the full path name of a node
* @param address the IP address of the node
*/
public ValueContact(PathName name, InetAddress address) {
this.name = name;
this.address = address;
}
/* Kryo needs a no-args constructor */
private ValueContact() throws UnknownHostException {
name = new PathName("");
address = InetAddress.getByAddress(new byte[] {0, 0, 0, 0});
}
@Override
public Value getDefaultValue() {
return new ValueContact(null, null);
}
/**
* Returns a name stored in this object.
*
* @return the name of a node
*/
public PathName getName() {
return name;
}
/**
* Returns an IP address stored in this object.
*
* @return the IP address of a node
*/
public InetAddress getAddress() {
return address;
}
@Override
public Type getType() {
return TypePrimitive.CONTACT;
}
@Override
public Value convertTo(Type type) {
switch(type.getPrimaryType()) {
case CONTACT:
return this;
case STRING:
if(isNull())
return ValueString.NULL_STRING;
else
return new ValueString("(" + name.toString() + ", " + address.toString() + ")");
default:
throw new UnsupportedConversionException(getType(), type);
}
}
@Override
public boolean isNull() {
return name == null || address == null;
}
}
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