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use dummy introspector if java.beans.Introspector is not available #156

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Original file line number Diff line number Diff line change
@@ -0,0 +1,34 @@
/*
* Copyright 2014 Daniel Bechler
*
* 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 de.danielbechler.diff.introspection;

import de.danielbechler.diff.instantiation.TypeInfo;
import de.danielbechler.util.Assert;

/**
* Does not attempt to resolve any accessor of the given type.
*
* @author Pascal Brogle
*/
public class DummyIntrospector implements de.danielbechler.diff.introspection.Introspector
{
public TypeInfo introspect(final Class<?> type)
{
Assert.notNull(type, "type");
return new TypeInfo(type);
}
}
Original file line number Diff line number Diff line change
Expand Up @@ -39,13 +39,22 @@ public class IntrospectionService implements IntrospectionConfigurer, IsIntrospe
private final NodePathValueHolder<Introspector> nodePathIntrospectorHolder = new NodePathValueHolder<Introspector>();
private final NodePathValueHolder<IntrospectionMode> nodePathIntrospectionModeHolder = new NodePathValueHolder<IntrospectionMode>();
private final ObjectDifferBuilder objectDifferBuilder;
private Introspector defaultIntrospector = new StandardIntrospector();
private Introspector defaultIntrospector;
private InstanceFactory instanceFactory = new PublicNoArgsConstructorInstanceFactory();
private PropertyAccessExceptionHandler defaultPropertyAccessExceptionHandler = new DefaultPropertyAccessExceptionHandler();

public IntrospectionService(final ObjectDifferBuilder objectDifferBuilder)
{
this.objectDifferBuilder = objectDifferBuilder;
try
{
Class.forName("java.beans.Introspector");
defaultIntrospector = new StandardIntrospector();
}
catch(final ClassNotFoundException e )
{
defaultIntrospector = new DummyIntrospector();
}
}

public boolean isIntrospectable(final DiffNode node)
Expand Down