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/**
* Copyright (c) 2010, 2015 BestSolution.at and others.
*
* This program and the accompanying materials
* are made available under the terms of the Eclipse Public License 2.0
* which accompanies this distribution, and is available at
* https://www.eclipse.org/legal/epl-2.0/
*
* SPDX-License-Identifier: EPL-2.0
*
* Contributors:
* Tom Schindl <tom.schindl@bestsolution.at> - initial API and implementation
* IBM Corporation - initial API and implementation
* Steven Spungin <steven@spungin.tv> - Bug 437958
*/
package org.eclipse.e4.ui.model.fragment.impl;
import java.util.ArrayList;
import java.util.Collections;
import java.util.Iterator;
import java.util.List;
import java.util.regex.Pattern;
import org.eclipse.e4.emf.xpath.EcoreXPathContextFactory;
import org.eclipse.e4.emf.xpath.XPathContext;
import org.eclipse.e4.emf.xpath.XPathContextFactory;
import org.eclipse.e4.ui.model.application.MApplication;
import org.eclipse.e4.ui.model.application.MApplicationElement;
import org.eclipse.e4.ui.model.fragment.MStringModelFragment;
import org.eclipse.e4.ui.model.internal.ModelUtils;
import org.eclipse.emf.common.notify.Notification;
import org.eclipse.emf.ecore.EClass;
import org.eclipse.emf.ecore.EObject;
import org.eclipse.emf.ecore.EStructuralFeature;
import org.eclipse.emf.ecore.impl.ENotificationImpl;
import org.eclipse.emf.ecore.util.EcoreUtil;
/**
* <!-- begin-user-doc -->
* An implementation of the model object '<em><b>String Model Fragment</b></em>'.
* <!-- end-user-doc -->
* <p>
* The following features are implemented:
* </p>
* <ul>
* <li>{@link org.eclipse.e4.ui.model.fragment.impl.StringModelFragmentImpl#getFeaturename <em>Featurename</em>}</li>
* <li>{@link org.eclipse.e4.ui.model.fragment.impl.StringModelFragmentImpl#getParentElementId <em>Parent Element Id</em>}</li>
* <li>{@link org.eclipse.e4.ui.model.fragment.impl.StringModelFragmentImpl#getPositionInList <em>Position In List</em>}</li>
* </ul>
*
* @since 1.0
* @generated
*/
public class StringModelFragmentImpl extends ModelFragmentImpl implements MStringModelFragment {
/**
* The default value of the '{@link #getFeaturename() <em>Featurename</em>}' attribute.
* <!-- begin-user-doc -->
* <!-- end-user-doc -->
* @see #getFeaturename()
* @generated
* @ordered
*/
protected static final String FEATURENAME_EDEFAULT = null;
final Pattern patternCSV = Pattern.compile("[,\\s]*,[,\\s]*");
/**
* The cached value of the '{@link #getFeaturename() <em>Featurename</em>}' attribute.
* <!-- begin-user-doc -->
* <!-- end-user-doc -->
* @see #getFeaturename()
* @generated
* @ordered
*/
protected String featurename = FEATURENAME_EDEFAULT;
/**
* The default value of the '{@link #getParentElementId() <em>Parent Element Id</em>}' attribute.
* <!-- begin-user-doc -->
* <!-- end-user-doc -->
* @see #getParentElementId()
* @generated
* @ordered
*/
protected static final String PARENT_ELEMENT_ID_EDEFAULT = null;
/**
* The cached value of the '{@link #getParentElementId() <em>Parent Element Id</em>}' attribute.
* <!-- begin-user-doc -->
* <!-- end-user-doc -->
* @see #getParentElementId()
* @generated
* @ordered
*/
protected String parentElementId = PARENT_ELEMENT_ID_EDEFAULT;
/**
* The default value of the '{@link #getPositionInList() <em>Position In List</em>}' attribute.
* <!-- begin-user-doc -->
* <!-- end-user-doc -->
* @see #getPositionInList()
* @generated
* @ordered
*/
protected static final String POSITION_IN_LIST_EDEFAULT = null;
/**
* The cached value of the '{@link #getPositionInList() <em>Position In List</em>}' attribute.
* <!-- begin-user-doc -->
* <!-- end-user-doc -->
* @see #getPositionInList()
* @generated
* @ordered
*/
protected String positionInList = POSITION_IN_LIST_EDEFAULT;
/**
* <!-- begin-user-doc -->
* <!-- end-user-doc -->
* @generated
*/
protected StringModelFragmentImpl() {
super();
}
/**
* <!-- begin-user-doc -->
* <!-- end-user-doc -->
* @generated
*/
@Override
protected EClass eStaticClass() {
return FragmentPackageImpl.Literals.STRING_MODEL_FRAGMENT;
}
/**
* <!-- begin-user-doc -->
* <!-- end-user-doc -->
* @generated
*/
@Override
public String getFeaturename() {
return featurename;
}
/**
* <!-- begin-user-doc -->
* <!-- end-user-doc -->
* @generated
*/
@Override
public void setFeaturename(String newFeaturename) {
String oldFeaturename = featurename;
featurename = newFeaturename;
if (eNotificationRequired())
eNotify(new ENotificationImpl(this, Notification.SET,
FragmentPackageImpl.STRING_MODEL_FRAGMENT__FEATURENAME, oldFeaturename, featurename));
}
/**
* <!-- begin-user-doc -->
* <!-- end-user-doc -->
* @generated
*/
@Override
public String getParentElementId() {
return parentElementId;
}
/**
* <!-- begin-user-doc -->
* <!-- end-user-doc -->
* @generated
*/
@Override
public void setParentElementId(String newParentElementId) {
String oldParentElementId = parentElementId;
parentElementId = newParentElementId;
if (eNotificationRequired())
eNotify(new ENotificationImpl(this, Notification.SET,
FragmentPackageImpl.STRING_MODEL_FRAGMENT__PARENT_ELEMENT_ID, oldParentElementId, parentElementId));
}
/**
* <!-- begin-user-doc -->
* <!-- end-user-doc -->
* @generated
*/
@Override
public String getPositionInList() {
return positionInList;
}
/**
* <!-- begin-user-doc -->
* <!-- end-user-doc -->
* @generated
*/
@Override
public void setPositionInList(String newPositionInList) {
String oldPositionInList = positionInList;
positionInList = newPositionInList;
if (eNotificationRequired())
eNotify(new ENotificationImpl(this, Notification.SET,
FragmentPackageImpl.STRING_MODEL_FRAGMENT__POSITION_IN_LIST, oldPositionInList, positionInList));
}
/**
* <!-- begin-user-doc -->
* <!-- end-user-doc -->
* @generated
*/
@Override
public Object eGet(int featureID, boolean resolve, boolean coreType) {
switch (featureID) {
case FragmentPackageImpl.STRING_MODEL_FRAGMENT__FEATURENAME:
return getFeaturename();
case FragmentPackageImpl.STRING_MODEL_FRAGMENT__PARENT_ELEMENT_ID:
return getParentElementId();
case FragmentPackageImpl.STRING_MODEL_FRAGMENT__POSITION_IN_LIST:
return getPositionInList();
default:
return super.eGet(featureID, resolve, coreType);
}
}
/**
* <!-- begin-user-doc -->
* <!-- end-user-doc -->
* @generated
*/
@Override
public void eSet(int featureID, Object newValue) {
switch (featureID) {
case FragmentPackageImpl.STRING_MODEL_FRAGMENT__FEATURENAME:
setFeaturename((String) newValue);
return;
case FragmentPackageImpl.STRING_MODEL_FRAGMENT__PARENT_ELEMENT_ID:
setParentElementId((String) newValue);
return;
case FragmentPackageImpl.STRING_MODEL_FRAGMENT__POSITION_IN_LIST:
setPositionInList((String) newValue);
return;
default:
super.eSet(featureID, newValue);
return;
}
}
/**
* <!-- begin-user-doc -->
* <!-- end-user-doc -->
* @generated
*/
@Override
public void eUnset(int featureID) {
switch (featureID) {
case FragmentPackageImpl.STRING_MODEL_FRAGMENT__FEATURENAME:
setFeaturename(FEATURENAME_EDEFAULT);
return;
case FragmentPackageImpl.STRING_MODEL_FRAGMENT__PARENT_ELEMENT_ID:
setParentElementId(PARENT_ELEMENT_ID_EDEFAULT);
return;
case FragmentPackageImpl.STRING_MODEL_FRAGMENT__POSITION_IN_LIST:
setPositionInList(POSITION_IN_LIST_EDEFAULT);
return;
default:
super.eUnset(featureID);
return;
}
}
/**
* <!-- begin-user-doc -->
* <!-- end-user-doc -->
* @generated
*/
@Override
public boolean eIsSet(int featureID) {
switch (featureID) {
case FragmentPackageImpl.STRING_MODEL_FRAGMENT__FEATURENAME:
return FEATURENAME_EDEFAULT == null ? featurename != null : !FEATURENAME_EDEFAULT.equals(featurename);
case FragmentPackageImpl.STRING_MODEL_FRAGMENT__PARENT_ELEMENT_ID:
return PARENT_ELEMENT_ID_EDEFAULT == null ? parentElementId != null
: !PARENT_ELEMENT_ID_EDEFAULT.equals(parentElementId);
case FragmentPackageImpl.STRING_MODEL_FRAGMENT__POSITION_IN_LIST:
return POSITION_IN_LIST_EDEFAULT == null ? positionInList != null
: !POSITION_IN_LIST_EDEFAULT.equals(positionInList);
default:
return super.eIsSet(featureID);
}
}
/**
* <!-- begin-user-doc -->
* <!-- end-user-doc -->
* @generated
*/
@Override
public String toString() {
if (eIsProxy())
return super.toString();
StringBuilder result = new StringBuilder(super.toString());
result.append(" (featurename: "); //$NON-NLS-1$
result.append(featurename);
result.append(", parentElementId: "); //$NON-NLS-1$
result.append(parentElementId);
result.append(", positionInList: "); //$NON-NLS-1$
result.append(positionInList);
result.append(')');
return result.toString();
}
@Override
public List<MApplicationElement> merge(MApplication application) {
List<MApplicationElement> ret = new ArrayList<>();
String idsOrXPath = getParentElementId();
if (idsOrXPath.startsWith("xpath:")) {
String xPath = idsOrXPath.substring(6);
mergeXPath(application, ret, xPath);
} else {
mergeIdList(application, ret, idsOrXPath);
}
return ret;
}
private void mergeIdList(MApplication application, List<MApplicationElement> ret, String ids) {
String[] parentIds = patternCSV.split(ids);
for (String parentId : parentIds) {
MApplicationElement o = ModelUtils.findElementById(application, parentId);
if (o != null) {
EStructuralFeature feature = ((EObject) o).eClass().getEStructuralFeature(getFeaturename());
if (feature != null) {
List<MApplicationElement> elements;
if (parentIds.length > 1) {
elements = new ArrayList<>();
for (MApplicationElement element : getElements()) {
elements.add((MApplicationElement) EcoreUtil.copy((EObject) element));
}
} else {
elements = getElements();
}
ret.addAll(ModelUtils.merge(o, feature, elements, getPositionInList()));
}
}
}
}
private void mergeXPath(MApplication application, List<MApplicationElement> ret, String xPath) {
List<MApplicationElement> targetElements;
if ("/".equals(xPath)) {
targetElements = Collections.singletonList(application);
} else {
XPathContextFactory<EObject> f = EcoreXPathContextFactory.newInstance();
XPathContext xpathContext = f.newContext((EObject) application);
Iterator<Object> i = xpathContext.iterate(xPath);
targetElements = new ArrayList<>();
try {
while (i.hasNext()) {
Object obj = i.next();
if (obj instanceof MApplicationElement) {
MApplicationElement o = (MApplicationElement) obj;
targetElements.add(o);
}
}
} catch (Exception ex) {
// custom xpath functions will throw exceptions
ex.printStackTrace();
}
}
for (MApplicationElement targetElement : targetElements) {
EStructuralFeature feature = ((EObject) targetElement).eClass().getEStructuralFeature(getFeaturename());
if (feature != null) {
List<MApplicationElement> elements;
elements = new ArrayList<>();
for (MApplicationElement element : getElements()) {
elements.add((MApplicationElement) EcoreUtil.copy((EObject) element));
}
if (elements.isEmpty() == false) {
ret.addAll(ModelUtils.merge(targetElement, feature, elements, getPositionInList()));
}
}
}
}
} //StringModelFragmentImpl
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