/*******************************************************************************
* Copyright 2013 Analog Devices, Inc.
*
* 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.
********************************************************************************/
package com.analog.lyric.dimple.model.core;
import static java.util.Objects.*;
import java.util.UUID;
import net.jcip.annotations.Immutable;
import org.eclipse.jdt.annotation.Nullable;
import com.analog.lyric.dimple.solvers.interfaces.ISolverEdgeState;
import com.analog.lyric.dimple.solvers.interfaces.ISolverNode;
/**
* Represents half an edge in the factor graph.
*/
@Immutable
public abstract class Port implements IFactorGraphChild
{
/**
* Identifies type of {@link Port} by the type of its {@linkplain Port#getNode() node}.
*
* @since 0.08
* @author Christopher Barber
*/
public static enum Type
{
FACTOR,
VARIABLE;
}
/*-------
* State
*/
final EdgeState _edgeState;
final FactorGraph _graph;
/*--------------
* Construction
*/
Port(EdgeState edgeState, FactorGraph graph)
{
_edgeState = edgeState;
_graph = graph;
}
/*----------------
* Object methods
*/
@Override
public int hashCode()
{
return getNode().hashCode()+getSiblingNumber();
}
@Override
public boolean equals(@Nullable Object obj)
{
if (obj instanceof Port)
{
Port p = (Port)obj;
return p.getNode() == this.getNode() && p.getSiblingNumber() == this.getSiblingNumber();
}
return false;
}
/*---------------------------
* IFactorGraphChild methods
*/
@Override
public FactorGraph getContainingGraph()
{
return _graph;
}
@Override
public long getGlobalId()
{
return Ids.globalIdFromParts(_graph.getGraphId(), getLocalId());
}
@Override
public long getGraphTreeId()
{
return Ids.graphTreeIdFromParts(_graph.getGraphTreeIndex(), getLocalId());
}
@Deprecated
@Override
public long getId()
{
return getLocalId();
}
@Override
public FactorGraph getParentGraph()
{
return _graph;
}
@Override
public FactorGraph getRootGraph()
{
return _graph.getRootGraph();
}
@Override
public UUID getUUID()
{
return Ids.makeUUID(_graph.getEnvironment().getEnvId(), getGlobalId());
}
/*--------------
* Port methods
*/
@Override
public String toString()
{
return getNode().toString() + " index: " + getSiblingNumber();
}
/**
* The node belonging to this half edge.
* @since 0.08
* @see #getSiblingNode()
*/
public abstract INode getNode();
/**
* Returns node at other end of edge from {@linkplain #getNode() this port's node}
* @since 0.08
*/
public INode getSiblingNode()
{
return getNode().getSibling(getSiblingNumber());
}
/**
* Returns the sibling number of the half-edge with respect to {@linkplain #getNode() this port's node}.
* @since 0.08
*/
public abstract int getSiblingNumber();
public abstract Port getSiblingPort();
/**
* Return the corresponding edge object for this port.
* @since 0.08
*/
public EdgeState toEdgeState()
{
return _edgeState;
}
public abstract Type portType();
/*--------------------
* Deprecated methods
*/
/**
* @deprecated use {@link #getSiblingNode()} instead.
*/
@Deprecated
public INode getConnectedNode()
{
return getNode().getSibling(getSiblingNumber());
}
/**
* @deprecated instead use {@link #toEdgeState()} to get {@link EdgeState}, use
* that to look up corresponding {@link ISolverEdgeState} in solver graph, which will contain the
* messages.
*/
@Deprecated
public void setInputMsgValues(Object obj)
{
requireNonNull(getNode().getSolver()).setInputMsgValues(getSiblingNumber(), obj);
}
/**
* @deprecated instead use {@link #toEdgeState()} to get {@link EdgeState}, use
* that to look up corresponding {@link ISolverEdgeState} in solver graph, which will contain the
* messages.
*/
@Deprecated
public void setOutputMsgValues(Object obj)
{
requireNonNull(getNode().getSolver()).setOutputMsgValues(getSiblingNumber(),obj);
}
/**
* @deprecated instead use {@link #toEdgeState()} to get {@link EdgeState}, use
* that to look up corresponding {@link ISolverEdgeState} in solver graph, which will contain the
* messages.
*/
@Deprecated
public @Nullable Object getInputMsg()
{
final ISolverNode snode = getNode().getSolver();
return snode != null ? snode.getInputMsg(getSiblingNumber()) : null;
}
/**
* @deprecated instead use {@link #toEdgeState()} to get {@link EdgeState}, use
* that to look up corresponding {@link ISolverEdgeState} in solver graph, which will contain the
* messages.
*/
@Deprecated
public @Nullable Object getOutputMsg()
{
final ISolverNode snode = getNode().getSolver();
return snode != null ? snode.getOutputMsg(getSiblingNumber()) : null;
}
}