org.openmdx.base.aop1.Aspect_1 Maven / Gradle / Ivy
/*
* ====================================================================
* Description: org::openmdx::base::Aspect plug-in
* Owner: OMEX AG, Switzerland, http://www.omex.ch
* ====================================================================
*
* This software is published under the BSD license as listed below.
*
* Copyright (c) 2008, 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.base.aop1;
import java.util.List;
import java.util.Map;
import java.util.Set;
import java.util.SortedMap;
import javax.resource.ResourceException;
import javax.resource.cci.InteractionSpec;
import javax.resource.cci.Record;
import org.openmdx.base.accessor.cci.Container_1_0;
import org.openmdx.base.accessor.cci.DataObject_1_0;
import org.openmdx.base.accessor.cci.SystemAttributes;
import org.openmdx.base.accessor.spi.ExceptionHelper;
import org.openmdx.base.accessor.view.Interceptor_1;
import org.openmdx.base.accessor.view.ObjectView_1_0;
import org.openmdx.base.exception.ServiceException;
import org.openmdx.base.mof.cci.Model_1_0;
import org.openmdx.base.resource.spi.MethodInvocationSpec;
import org.openmdx.kernel.exception.BasicException;
/**
* org::openmdx::base::Aspect plug-in
*/
public class Aspect_1 extends Interceptor_1 {
/**
* Constructor
*
* @param self the plug-in holder
* @param next the next plug-in
* @throws ServiceException
*/
public Aspect_1(
ObjectView_1_0 self,
Interceptor_1 next
) throws ServiceException {
super(self, next);
}
/**
*
*/
private transient DataObject_1_0 core = null;
/**
*
*/
private transient Map coreFeatures;
/**
* Retrieve the delegate
*
* @param feature the fature's name
*
* @return the core or aspect instance depending on the feature
*
* @throws ServiceException
*/
private final DataObject_1_0 getDelegate(
String feature
) throws ServiceException {
if(this.coreFeatures == null && getCore(false) != null) {
this.coreFeatures = getModel().getElement(
getCore(true).objGetClass()
).objGetMap("allFeature");
}
return this.coreFeatures != null && this.coreFeatures.containsKey(feature) ? getCore(true) : getDelegate();
}
/**
* Retrieve the core object
*
* @throws ServiceException
*/
private DataObject_1_0 getCore(
boolean required
) throws ServiceException {
if(this.core == null) {
this.core = (DataObject_1_0) this.self.objGetDelegate().objGetValue(SystemAttributes.CORE);
}
if(required && this.core == null) {
throw new ServiceException(
BasicException.Code.DEFAULT_DOMAIN,
BasicException.Code.ILLEGAL_STATE,
"This invocation is only allowed after the aspect's core is defined"
);
}
return this.core;
}
/**
* Assign the core object.
*
* This methods links the aspect to its core.
*
* @param core the aspect's core object
*
* @throws ServiceException
*/
private void setCore(
DataObject_1_0 core
) throws ServiceException {
validateCore(core);
super.objSetValue(SystemAttributes.CORE, this.core = core);
}
/**
* @param feature
* @return
* @throws ServiceException
* @see org.openmdx.base.accessor.generic.cci.Featured_1_0#objGetContainer(java.lang.String)
*/
@Override
public Container_1_0 objGetContainer(
String feature
) throws ServiceException {
DataObject_1_0 core = getCore(false);
return core == null ? super.objGetContainer(feature) : core.objGetContainer(feature);
}
/* (non-Javadoc)
* @see org.openmdx.base.accessor.spi.DelegatingObject_1#objGetValue(java.lang.String)
*/
@Override
public Object objGetValue(
String feature
) throws ServiceException {
if(SystemAttributes.CORE.equals(feature)) {
return getCore(false);
} else {
return getDelegate(feature).objGetValue(feature);
}
}
/**
* @param feature
* @return
* @throws ServiceException
* @see org.openmdx.base.accessor.generic.cci.Featured_1_0#objGetList(java.lang.String)
*/
@Override
public List