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/*******************************************************************************
* Copyright (c) 2013, 2014 Wind River Systems, Inc. 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:
* Wind River Systems - initial API and implementation
*******************************************************************************/
package org.eclipse.tcf.te.tcf.ui.handler;
import java.util.ArrayList;
import java.util.List;
import org.eclipse.core.commands.ExecutionEvent;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.jface.window.Window;
import org.eclipse.tcf.te.runtime.interfaces.properties.IPropertiesContainer;
import org.eclipse.tcf.te.runtime.persistence.history.HistoryManager;
import org.eclipse.tcf.te.runtime.persistence.utils.DataHelper;
import org.eclipse.tcf.te.runtime.properties.PropertiesContainer;
import org.eclipse.tcf.te.runtime.services.ServiceManager;
import org.eclipse.tcf.te.runtime.services.interfaces.IService;
import org.eclipse.tcf.te.runtime.stepper.interfaces.IStepperOperationService;
import org.eclipse.tcf.te.tcf.core.interfaces.IContextDataProperties;
import org.eclipse.tcf.te.tcf.locator.interfaces.nodes.IPeerNode;
import org.eclipse.tcf.te.tcf.locator.interfaces.services.IDefaultContextService;
import org.eclipse.tcf.te.tcf.locator.services.selection.RuntimeServiceContextFilter;
import org.eclipse.tcf.te.tcf.locator.utils.PeerNodeDataHelper;
import org.eclipse.tcf.te.ui.handler.AbstractStepperCommandHandler;
import org.eclipse.tcf.te.ui.interfaces.IDataExchangeDialog;
import org.eclipse.tcf.te.ui.views.interfaces.IUIConstants;
import org.eclipse.ui.handlers.HandlerUtil;
/**
* Abstract stepper command handler for load/unload.
*/
public abstract class AbstractContextStepperCommandHandler extends AbstractStepperCommandHandler {
protected void calculateSelectionData(ExecutionEvent event, IPropertiesContainer data) {
setContextList(event, data);
List<IStructuredSelection> selections = getSelections(event);
for (IStructuredSelection selection : selections) {
if (selection != null) {
addSelection(selection, data);
}
}
}
protected abstract String[] getServices();
protected abstract void addSelection(IStructuredSelection selection, IPropertiesContainer data);
protected boolean doShowDisconnectedContexts() {
return false;
}
protected IPropertiesContainer getDataFromHistory(ExecutionEvent event) {
IPeerNode context = getContext(event);
if (context != null) {
IService[] stepperOpServices = ServiceManager.getInstance().getServices(context, IStepperOperationService.class, false);
for (IService stepperOpService : stepperOpServices) {
if (stepperOpService instanceof IStepperOperationService && ((IStepperOperationService)stepperOpService).isHandledOperation(context, operation)) {
String groupId = ((IStepperOperationService)stepperOpService).getStepGroupId(context, operation);
if (groupId != null) {
String history = HistoryManager.getInstance().getFirst(groupId + "@" + context.getPeerId()); //$NON-NLS-1$
if (history != null) {
return DataHelper.decodePropertiesContainer(history);
}
}
}
}
}
return getDefaultData();
}
protected IPropertiesContainer getDefaultData() {
return new PropertiesContainer();
}
protected IPeerNode getContext(ExecutionEvent event) {
IDefaultContextService selService = ServiceManager.getInstance().getService(IDefaultContextService.class);
if (selService != null) {
IPeerNode[] peerModels = selService.getCandidates(getSelection(event),
new RuntimeServiceContextFilter(getServices(), doShowDisconnectedContexts()));
if (peerModels.length > 0) {
return peerModels[0];
}
}
return null;
}
protected void setContextList(ExecutionEvent event, IPropertiesContainer data) {
IPeerNode context = getContext(event);
if (context != null) {
data.setProperty(IContextDataProperties.PROPERTY_CONTEXT_LIST, PeerNodeDataHelper.encodeContextList(new IPeerNode[]{context}));
}
}
protected String getContextName(IPropertiesContainer data) {
String encoded = data.getStringProperty(IContextDataProperties.PROPERTY_CONTEXT_LIST);
IPeerNode[] contexts = PeerNodeDataHelper.decodeContextList(encoded);
if (contexts != null && contexts.length > 0) {
return contexts[0].getName();
}
return null;
}
protected abstract IDataExchangeDialog getDialog(ExecutionEvent event, IPropertiesContainer data);
/* (non-Javadoc)
* @see org.eclipse.tcf.te.ui.handler.AbstractStepperCommandHandler#getData(org.eclipse.core.commands.ExecutionEvent)
*/
@Override
protected final IPropertiesContainer getData(ExecutionEvent event) {
IPropertiesContainer data = getDataFromHistory(event);
calculateSelectionData(event, data);
IDataExchangeDialog dialog = getDialog(event, data);
if (dialog != null) {
dialog.setupData(data);
if (dialog.open() == Window.OK) {
String contextList = data.getStringProperty(IContextDataProperties.PROPERTY_CONTEXT_LIST);
data = new PropertiesContainer();
dialog.extractData(data);
if (!data.containsKey(IContextDataProperties.PROPERTY_CONTEXT_LIST)) {
data.setProperty(IContextDataProperties.PROPERTY_CONTEXT_LIST, contextList);
}
return data;
}
return null;
}
return data;
}
protected List<IStructuredSelection> getSelections(ExecutionEvent event) {
List<IStructuredSelection> selections = new ArrayList<IStructuredSelection>();
String partId = HandlerUtil.getActivePartId(event);
selections.add(getSelection(event));
if (!PART_ID_PROJECT_VIEW.equals(partId)) {
selections.add(getPartSelection(PART_ID_PROJECT_VIEW));
}
if (!IUIConstants.ID_EXPLORER.equals(partId)) {
selections.add(getEditorInputSelection());
selections.add(getPartSelection(IUIConstants.ID_EXPLORER));
}
return selections;
}
/* (non-Javadoc)
* @see org.eclipse.tcf.te.ui.handler.AbstractStepperCommandHandler#getContext(org.eclipse.tcf.te.runtime.interfaces.properties.IPropertiesContainer)
*/
@Override
protected Object getContext(IPropertiesContainer data) {
IPeerNode[] contexts = PeerNodeDataHelper.decodeContextList(data.getStringProperty(IContextDataProperties.PROPERTY_CONTEXT_LIST));
data.setProperty(IContextDataProperties.PROPERTY_CONTEXT_LIST, null);
return contexts.length == 1 ? contexts[0] : null;
}
/* (non-Javadoc)
* @see org.eclipse.tcf.te.ui.handler.AbstractStepperCommandHandler#cleanupData(org.eclipse.tcf.te.runtime.interfaces.properties.IPropertiesContainer)
*/
@Override
protected IPropertiesContainer cleanupData(IPropertiesContainer data) {
data = super.cleanupData(data);
data.setProperty(IContextDataProperties.PROPERTY_CONTEXT_LIST, null);
return data;
}
}
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