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Posted to dev@commons.apache.org by dd...@apache.org on 2002/05/08 19:38:34 UTC
cvs commit: jakarta-commons-sandbox/graph2/src/java/org/apache/commons/graph/factory GraphFactory.java
ddp 02/05/08 10:38:34
Added: graph2/src/java/org/apache/commons/graph/factory
GraphFactory.java
Log:
Moving changes.
Revision Changes Path
1.1 jakarta-commons-sandbox/graph2/src/java/org/apache/commons/graph/factory/GraphFactory.java
Index: GraphFactory.java
===================================================================
package org.apache.commons.graph.factory;
/* ====================================================================
* The Apache Software License, Version 1.1
*
* Copyright (c) 2001 The Apache Software Foundation. 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.
*
* 3. The end-user documentation included with the redistribution,
* if any, must include the following acknowledgment:
* "This product includes software developed by the
* Apache Software Foundation (http://www.apache.org/)."
* Alternately, this acknowledgment may appear in the software itself,
* if and wherever such third-party acknowledgments normally appear.
*
* 4. The names "Apache" and "Apache Software Foundation" and
* "Commons" must not be used to endorse or promote products
* derived from this software without prior written permission. For
* written permission, please contact apache@apache.org.
*
* 5. Products derived from this software may not be called "Apache",
* "Commons", nor may "Apache" appear in their name, without
* prior written permission of the Apache Software Foundation.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED 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 APACHE SOFTWARE FOUNDATION OR
* ITS 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.
* ====================================================================
*
* This software consists of voluntary contributions made by many
* individuals on behalf of the Apache Software Foundation. For more
* information on the Apache Software Foundation, please see
* <http://www.apache.org/>.
*/
import java.lang.reflect.*;
import org.apache.commons.graph.*;
import org.apache.commons.graph.contract.*;
import org.apache.commons.graph.exception.*;
import org.apache.commons.graph.domain.basic.*;
/**
* Description of the Class
*/
public class GraphFactory
{
/**
* Constructor for the GraphFactory object
*/
public GraphFactory() { }
/**
* makeGraph
*
* @param contracts Which contracts to enforce.
* @param baseGraph Is the actual *GraphImpl which will be at the core of
* the Proxy.
* @param baseGraphType Interface which is returned.
* @param isWeighted Does the graph handle Weights?
* @param init Initialization Graph.
*/
private Object makeGraph(Contract contracts[],
InvocationHandler baseGraph,
Class baseGraphType,
boolean isWeighted)
throws GraphException
{
int interfaceCount = contracts.length;
interfaceCount++;// BaseGraph Type
if (isWeighted)
{
interfaceCount++;
}// WeightedGraph Type
Class inter[] = new Class[interfaceCount];
int pos = 0;
for (pos = 0; pos < contracts.length; pos++)
{
inter[pos] = contracts[pos].getInterface();
}
if (isWeighted)
{
inter[pos] = org.apache.commons.graph.WeightedGraph.class;
pos++;
}
inter[pos] = baseGraphType;
return Proxy.newProxyInstance(baseGraph.getClass().getClassLoader(),
inter, baseGraph);
}
/**
* makeDirectedGraph
*
* @param contracts - Array of Contracts this Graph should meet.
* @param isWeighted - If true, the Graph will implement the WeightedGraph
* interface.
* @param graph - If it is provided, the graph will initially be equal to
* the graph.
*/
public DirectedGraph makeDirectedGraph(Contract contracts[],
boolean isWeighted,
DirectedGraph graph)
throws GraphException
{
DirectedGraphImpl dgi = null;
if (graph != null)
{
dgi = new DirectedGraphImpl(graph);
}
else
{
dgi = new DirectedGraphImpl();
}
for (int i = 0; i < contracts.length; i++)
{
dgi.addContract(contracts[i]);
}
return (DirectedGraph)
makeGraph(contracts,
dgi, org.apache.commons.graph.DirectedGraph.class,
isWeighted);
}
/**
* makeMutableDirectedGraph
*
* @param contracts - Array of Contracts this Graph should meet.
* @param isWeighted - If true, the Graph will implement the WeightedGraph
* interface.
* @param graph - If it is provided, the graph will initially be equal to
* the graph.
*/
public MutableDirectedGraph
makeMutableDirectedGraph(Contract contracts[],
boolean isWeighted,
DirectedGraph graph)
throws GraphException
{
DirectedGraphImpl dgi = null;
if (graph != null)
{
dgi = new DirectedGraphImpl(graph);
}
else
{
dgi = new DirectedGraphImpl();
}
for (int i = 0; i < contracts.length; i++)
{
dgi.addContract(contracts[i]);
}
return (MutableDirectedGraph)
makeGraph(contracts,
dgi,
org.apache.commons.graph.MutableDirectedGraph.class,
isWeighted);
}
}
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