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/*******************************************************************************
* Copyright (c) 2006, 2010 Soyatec (http://www.soyatec.com) and others. *
* 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: *
* Soyatec - initial API and implementation *
*******************************************************************************/
package org.eclipse.papyrus.xwt.dataproviders;
import java.util.HashMap;
import java.util.List;
import java.util.Set;
import org.eclipse.core.databinding.observable.IObservable;
import org.eclipse.core.databinding.observable.list.IObservableList;
import org.eclipse.core.databinding.observable.set.IObservableSet;
import org.eclipse.core.databinding.observable.value.IObservableValue;
import org.eclipse.core.databinding.property.value.IValueProperty;
import org.eclipse.papyrus.xwt.IDataProvider;
import org.eclipse.papyrus.xwt.core.IBinding;
import org.eclipse.papyrus.xwt.internal.core.ScopeManager;
/**
* @author jliu (jin.liu@soyatec.com)
*/
public abstract class AbstractDataProvider implements IDataProvider {
private HashMap<String, Object> properties = new HashMap<String, Object>();
public Object getProperty(String property) {
return properties.get(property);
}
public void setProperty(String property, Object value) {
properties.put(property, value);
}
public boolean hasProperty(String property) {
return properties.containsKey(property);
}
public void removeProperty(String property) {
properties.remove(property);
}
public boolean isPropertyReadOnly(String path) {
return false;
}
public IObservable observe(Object data, String path, Object elementType, int observeKind) {
Object type = null;
if (elementType == null) {
type = getModelService().toModelType(data);
} else {
type = elementType;
}
Object propertyType = getModelService().toModelPropertyType(type, path);
Class<?> propertyTypeClass = null;
if (propertyType instanceof Class<?>) {
propertyTypeClass = (Class<?>) propertyType;
if (IBinding.class.isAssignableFrom(propertyTypeClass)) {
return null;
}
}
switch (observeKind) {
case ScopeManager.AUTO:
if (propertyTypeClass != null && (propertyTypeClass.isArray() || List.class.isAssignableFrom(propertyTypeClass))) {
if (data instanceof IObservableValue) {
IObservableValue observable = (IObservableValue) data;
return observeDetailList(observable, type, path, propertyType);
}
return observeList(data, path);
} else if (propertyTypeClass != null && (Set.class.isAssignableFrom(propertyTypeClass))) {
if (data instanceof IObservableValue) {
IObservableValue observable = (IObservableValue) data;
return observeDetailSet(observable, type, path, propertyType);
}
return observeSet(data, path);
} else {
if (data instanceof IObservableValue) {
IObservableValue observable = (IObservableValue) data;
return observeDetailValue(observable, type, path, propertyType);
}
return observeValue(data, path);
}
case ScopeManager.VALUE:
if (data instanceof IObservableValue) {
IObservableValue observable = (IObservableValue) data;
return observeDetailValue(observable, type, path, propertyType);
}
return observeValue(data, path);
case ScopeManager.COLLECTION:
if (propertyTypeClass != null && Set.class.isAssignableFrom(propertyTypeClass)) {
if (data instanceof IObservableValue) {
IObservableValue observable = (IObservableValue) data;
return observeDetailSet(observable, type, path, propertyType);
}
return observeSet(data, path);
}
if (data instanceof IObservableValue) {
IObservableValue observable = (IObservableValue) data;
return observeDetailList(observable, type, path, propertyType);
}
return observeList(data, path);
case ScopeManager.SET:
if (data instanceof IObservableValue) {
IObservableValue observable = (IObservableValue) data;
return observeDetailSet(observable, type, path, propertyType);
}
return observeSet(data, path);
case ScopeManager.LIST:
if (data instanceof IObservableValue) {
IObservableValue observable = (IObservableValue) data;
return observeDetailList(observable, type, path, propertyType);
}
return observeList(data, path);
}
return null;
}
protected abstract IObservableValue observeValue(Object bean, String propertyName);
protected IObservableList observeList(Object bean, String propertyName) {
return null;
}
protected IObservableSet observeSet(Object bean, String propertyName) {
return null;
}
protected IObservableList observeDetailList(IObservableValue bean, Object elementType, String propertyName, Object propertyType) {
return null;
}
protected IObservableSet observeDetailSet(IObservableValue bean, Object elementType, String propertyName, Object propertyType) {
return null;
}
protected abstract IObservableValue observeDetailValue(IObservableValue bean, Object elementType, String propertyName, Object propertyType);
// TODO to remove
public IValueProperty createValueProperty(Object type, String fullPath) {
throw new UnsupportedOperationException("to remove this method");
}
}
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