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/*******************************************************************************
* Copyright (c) 2015 Obeo.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Obeo - initial API and implementation
*******************************************************************************/
package org.eclipse.eef.core.internal;
import java.util.ArrayList;
import java.util.List;
import org.eclipse.eef.EEFGroupDescription;
import org.eclipse.eef.EEFPageDescription;
import org.eclipse.eef.core.api.EEFExpressionUtils;
import org.eclipse.eef.core.api.EEFGroup;
import org.eclipse.eef.core.api.EEFPage;
import org.eclipse.eef.core.api.EEFView;
import org.eclipse.eef.core.api.IVariableManager;
import org.eclipse.emf.transaction.TransactionalEditingDomain;
import org.eclipse.sirius.common.interpreter.api.IEvaluationResult;
import org.eclipse.sirius.common.interpreter.api.IInterpreter;
/**
* The implementation of the {@link EEFPage}.
*
* @author sbegaudeau
*/
public class EEFPageImpl implements EEFPage {
/**
* The variable manager.
*/
private IVariableManager variableManager;
/**
* The interpreter.
*/
private IInterpreter interpreter;
/**
* The containing {@link EEFView}.
*/
private EEFView eefView;
/**
* The description.
*/
private EEFPageDescription eefPageDescription;
/**
* The {@link EEFGroup}.
*/
private List<EEFGroup> eefGroups = new ArrayList<EEFGroup>();
/**
* The editing domain.
*/
private TransactionalEditingDomain editingDomain;
/**
* The constructor.
*
* @param eefView
* The containing {@link EEFView}
* @param eefPageDescription
* The description
* @param variableManager
* The variable manager
* @param interpreter
* The interpreter
* @param editingDomain
* The editing domain
*/
public EEFPageImpl(EEFView eefView, EEFPageDescription eefPageDescription, IVariableManager variableManager, IInterpreter interpreter,
TransactionalEditingDomain editingDomain) {
this.variableManager = variableManager;
this.interpreter = interpreter;
this.eefView = eefView;
this.eefPageDescription = eefPageDescription;
this.editingDomain = editingDomain;
}
/**
* Initialize the variables of the EEFPage.
*/
public void initialize() {
List<EEFGroupDescription> eefGroupDescriptions = this.eefPageDescription.getGroups();
for (EEFGroupDescription eefGroupDescription : eefGroupDescriptions) {
String semanticCandidatesExpression = eefGroupDescription.getSemanticCandidateExpression();
if (semanticCandidatesExpression != null && semanticCandidatesExpression.trim().length() > 0) {
IEvaluationResult evaluationResult = this.interpreter.evaluateExpression(this.getVariableManager().getVariables(),
semanticCandidatesExpression);
if (evaluationResult.getValue() instanceof Iterable<?>) {
@SuppressWarnings("unchecked")
Iterable<Object> groupSemanticCandidates = (Iterable<Object>) evaluationResult.getValue();
for (Object groupSemanticCandidate : groupSemanticCandidates) {
IVariableManager childVariableManager = this.getVariableManager().createChild();
childVariableManager.put(EEFExpressionUtils.SELF, groupSemanticCandidate);
EEFGroupImpl eefGroupImpl = new EEFGroupImpl(this, eefGroupDescription, childVariableManager, this.interpreter,
this.editingDomain);
eefGroups.add(eefGroupImpl);
}
} else {
Object groupSemanticCandidate = evaluationResult.getValue();
IVariableManager childVariableManager = this.getVariableManager().createChild();
childVariableManager.put(EEFExpressionUtils.SELF, groupSemanticCandidate);
EEFGroupImpl eefGroupImpl = new EEFGroupImpl(this, eefGroupDescription, childVariableManager, this.interpreter,
this.editingDomain);
eefGroups.add(eefGroupImpl);
}
} else {
IVariableManager childVariableManager = this.getVariableManager().createChild();
EEFGroupImpl eefGroupImpl = new EEFGroupImpl(this, eefGroupDescription, childVariableManager, this.interpreter, this.editingDomain);
eefGroups.add(eefGroupImpl);
}
}
}
/**
* {@inheritDoc}
*
* @see org.eclipse.eef.core.api.EEFPage#getLabel()
*/
@Override
public String getLabel() {
String labelExpression = this.eefPageDescription.getLabelExpression();
if (labelExpression != null) {
IEvaluationResult evaluationResult = this.interpreter.evaluateExpression(this.getVariableManager().getVariables(), labelExpression);
if (evaluationResult.getValue() != null) {
return evaluationResult.getValue().toString();
}
}
return labelExpression;
}
/**
* {@inheritDoc}
*
* @see org.eclipse.eef.core.api.EEFPage#getGroups()
*/
@Override
public List<EEFGroup> getGroups() {
return this.eefGroups;
}
/**
* {@inheritDoc}
*
* @see org.eclipse.eef.core.api.EEFPage#getDescription()
*/
@Override
public EEFPageDescription getDescription() {
return this.eefPageDescription;
}
@Override
public EEFView getView() {
return this.eefView;
}
/**
* {@inheritDoc}
*
* @see org.eclipse.eef.core.api.EEFPage#getVariableManager()
*/
@Override
public IVariableManager getVariableManager() {
return this.variableManager;
}
}
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