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* Copyright 2008-12, Red Hat Middleware LLC, and others contributors as indicated
* by the @authors tag. All rights reserved.
* See the copyright.txt in the distribution for a
* full listing of individual contributors.
* This copyrighted material is made available to anyone wishing to use,
* modify, copy, or redistribute it subject to the terms and conditions
* of the GNU Lesser General Public License, v. 2.1.
* This program is distributed in the hope that it will be useful, but WITHOUT A
* WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
* PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.
* You should have received a copy of the GNU Lesser General Public License,
* v.2.1 along with this distribution; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
* MA 02110-1301, USA.
*/
package org.savara.bpel.internal.model.change;
import org.savara.bpel.model.TFlow;
import org.savara.bpel.model.TLink;
import org.savara.bpel.model.TLinks;
import org.savara.bpel.model.TSequence;
import org.savara.protocol.model.change.ModelChangeContext;
import org.scribble.protocol.model.*;
/**
* This is the model change rule for the Parallel.
*/
public class ParallelModelChangeRule extends AbstractBPELModelChangeRule {
/**
* This method determines whether the rule is appropriate
* for the supplied type of model, parent (in the context) and
* model object.
*
* @param context The context
* @param model The model
* @param mobj The model object causing the change
* @param ref The optional reference model object
* @return Whether the rule supports the supplied information
*/
@Override
public boolean isInsertSupported(ModelChangeContext context,
ProtocolModel model, ModelObject mobj, ModelObject ref) {
boolean ret=false;
if (mobj instanceof org.scribble.protocol.model.Parallel && isBPELModel(model)) {
ret = true;
}
return(ret);
}
/**
* This method adds a new model object, within a
* parent model object, with the details supplied in
* another model object. The supplied model object
* will usually be from a different model representation
* (e.g. due to a merge), so the details will be
* copied and placed in the representation associated
* with the supplied model and parent model object.<p>
* <p>
* If a reference model object is supplied, then the
* insertion will occur relative to it. If the reference
* object is a block, then it means that the insertion
* should occur at the end of the block. Otherwise the
* new model object should be inserted before the
* reference object, within the containing block.<p>
* <p>
* If the reference object is not supplied, then the
* new model object should be inserted at the end of
* the behaviour associated with the parent in the model
* change context.
*
* @param context The context
* @param model The model being changed
* @param mobj The model object details to be inserted
* @param ref The optional reference model object
* @return Whether the change has been applied
*/
@Override
public boolean insert(ModelChangeContext context,
ProtocolModel model, ModelObject mobj, ModelObject ref) {
org.scribble.protocol.model.Parallel elem=
(org.scribble.protocol.model.Parallel)mobj;
java.util.List<Block> paths=elem.getPaths();
TFlow act=new TFlow();
if (context.getParent() instanceof TSequence) {
((TSequence)context.getParent()).getActivity().add(act);
}
// Check if flow links need to be declared
java.util.List<String> linkNames=org.savara.protocol.model.util.ForkJoinUtil.getLinkNames(elem);
if (linkNames.size() > 0) {
TLinks links=new TLinks();
act.setLinks(links);
for (String linkName : linkNames) {
TLink link=new TLink();
link.setName(linkName);
links.getLink().add(link);
}
}
// Generate the individual flow paths
for (int i=0; i < paths.size(); i++) {
Block path=paths.get(i);
TSequence seq=new TSequence();
// Process the activities within the conversation
java.util.List<Activity> acts=path.getContents();
context.pushScope();
context.setParent(seq);
for (int j=0; j < acts.size(); j++) {
context.insert(model, acts.get(j), null);
}
context.popScope();
act.getActivity().add(seq);
}
return(true);
}
}