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/*
* Copyright (c) 2008 Israfil Consulting Services Corporation
* Copyright (c) 2008 Christian Edward Gruber
* All Rights Reserved
*
* This software is licensed under the Berkeley Standard Distribution license,
* (BSD license), as defined below:
*
* 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. Neither the name of Israfil Consulting Services nor the names of its contributors
* may be used to endorse or promote products derived from this software without
* specific prior written permission.
*
* 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 OWNER 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.
*
* $Id: Copyright.java 618 2008-04-14 14:03:03Z christianedwardgruber $
*/
package net.israfil.foundation.container.util;
import java.util.HashMap;
import java.util.Map;
import net.israfil.foundation.container.AutoWiringAdapter;
import net.israfil.foundation.container.adapters.AbstractAutoWiringAdapter;
import net.israfil.foundation.container.adapters.IndependentAutoWiringAdapter;
import net.israfil.foundation.container.error.CyclicalDependencyError;
import org.testng.annotations.Test;
public class CyclicalDependencyDetectionTest {
@Test()
public void testCircularDependencyCheckWithNonCyclicGraph() {
// setup non-circular graph.
Map<Object,Object> registry = new HashMap<Object,Object>();
registry.put("a", new FakeAutoWireAdapter(new Object[]{"b","e","d"}));
registry.put("b", new FakeAutoWireAdapter(new Object[]{"f","c"}));
registry.put("c", new IndependentAutoWiringAdapter(Object.class));
registry.put("d", new FakeAutoWireAdapter(new Object[]{"e"}));
registry.put("e", new FakeAutoWireAdapter(new Object[]{"c"}));
registry.put("f", new IndependentAutoWiringAdapter(Object.class));
NonDuplicateStack<Object> nds = new NonDuplicateStack<Object>();
for (Object key : registry.keySet()) {
nds.push(key);
CyclicalReferenceDetectionUtil.detectCircularDependencies(registry, nds, (AutoWiringAdapter)registry.get(key));
nds.pop();
}
}
@Test(expectedExceptions=CyclicalDependencyError.class)
public void testCircularDependencyCheckWithCyclicalGraph() {
// setup circular graph.
Map<Object,Object> registry = new HashMap<Object,Object>();
registry.put("a", new FakeAutoWireAdapter(new Object[]{"b","e","d"}));
registry.put("b", new FakeAutoWireAdapter(new Object[]{"f","c"}));
registry.put("c", new FakeAutoWireAdapter(new Object[]{"d"}));
registry.put("d", new FakeAutoWireAdapter(new Object[]{"e"}));
registry.put("e", new FakeAutoWireAdapter(new Object[]{"c"}));
registry.put("f", new IndependentAutoWiringAdapter(Object.class));
NonDuplicateStack<Object> nds = new NonDuplicateStack<Object>();
for (Object key : registry.keySet()) {
nds.push(key);
CyclicalReferenceDetectionUtil.detectCircularDependencies(registry, nds, (AutoWiringAdapter)registry.get(key));
nds.pop();
}
}
public static class FakeAutoWireAdapter extends AbstractAutoWiringAdapter {
public FakeAutoWireAdapter(Object[] dependencies) {
super(Object.class, dependencies);
}
public Object create(Object[] parameters) throws IllegalAccessException, InstantiationException {
return null;
}
}
}
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