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/*
* ====================================================================
* Project: openMDX, http://www.openmdx.org/
* Description: Stated Object Interceptor
* Owner: OMEX AG, Switzerland, http://www.omex.ch
* ====================================================================
*
* This software is published under the BSD license as listed below.
*
* Copyright (c) 2009-2014, OMEX AG, Switzerland
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or
* without modification, are permitted provided that the following
* conditions are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* * 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.
*
* * Neither the name of the openMDX team 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.
*
* ------------------
*
* This product includes software developed by other organizations as
* listed in the NOTICE file.
*/
package org.openmdx.state2.aop1;
import java.util.Map;
import org.openmdx.base.accessor.cci.Container_1_0;
import org.openmdx.base.accessor.cci.DataObject_1_0;
import org.openmdx.base.accessor.view.Interceptor_1;
import org.openmdx.base.accessor.view.ObjectView_1_0;
import org.openmdx.base.collection.Maps;
import org.openmdx.base.exception.ServiceException;
import org.openmdx.base.mof.cci.ModelElement_1_0;
import org.openmdx.kernel.exception.BasicException;
/**
* Stated Object Interceptor
*/
abstract public class Object_1 extends Interceptor_1 {
/**
* Constructor
*
* @param self
* @param next
*/
protected Object_1(
ObjectView_1_0 self,
Interceptor_1 next
) {
super(self, next);
}
/**
* The container cache
*/
private final Map containers = Maps.newMap(isMultithreaded());
/* (non-Javadoc)
* @see org.openmdx.base.accessor.spi.DelegatingObject_1#objGetContainer(java.lang.String)
*/
@Override
public Container_1_0 objGetContainer(
String feature
) throws ServiceException {
Container_1_0 container = containers.get(feature);
if(container == null) {
DataObject_1_0 dataObject = this.self.objGetDelegate();
String coreClass = dataObject.objGetClass();
Map references = this.getModel().getElement(
coreClass
).objGetMap(
"reference"
);
ModelElement_1_0 reference = references.get(feature);
if(reference == null) {
throw new ServiceException(
BasicException.Code.DEFAULT_DOMAIN,
BasicException.Code.BAD_MEMBER_NAME,
"The requested reference is not a member of the containing class",
new BasicException.Parameter("class", coreClass),
new BasicException.Parameter("feature", feature)
);
}
String type = reference.getType().getLastSegment().toClassicRepresentation();
//
// A state capable container is required even if there is no state context
// in order to avoid the returning of states not requested explicitly.
//
container = reference.getModel().isSubtypeOf(type, "org:openmdx:state2:StateCapable") ? newStateCapableContainer(
this.self,
dataObject.objGetContainer(feature),
type
) : super.objGetContainer(
feature
);
return Maps.putUnlessPresent(this.containers, feature, container);
} else {
return container;
}
}
/**
* Create a StateCapable container
*
* @param parent
* @param container
* @param type
* @return a new StateCapable container
*
* @throws ServiceException
*/
protected abstract Container_1_0 newStateCapableContainer(
ObjectView_1_0 parent,
Container_1_0 container,
String type
) throws ServiceException;
}
