/*******************************************************************************
* Copyright (c) 2014 Pivotal Software, Inc.
*
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Apache License,
* Version 2.0 (the "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* Contributors:
* Steven Hung, IBM - initial API and implementation
********************************************************************************/
package org.cloudfoundry.ide.eclipse.server.ui.internal;
import java.util.ArrayList;
import java.util.Collection;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import org.cloudfoundry.client.lib.domain.CloudApplication;
import org.cloudfoundry.ide.eclipse.server.ui.internal.editor.CloudFoundryViewerSorter;
import org.cloudfoundry.ide.eclipse.server.ui.internal.editor.ServicesHandler;
import org.eclipse.jface.layout.GridDataFactory;
import org.eclipse.jface.layout.GridLayoutFactory;
import org.eclipse.jface.viewers.CheckboxTableViewer;
import org.eclipse.jface.viewers.IStructuredContentProvider;
import org.eclipse.jface.viewers.ITableLabelProvider;
import org.eclipse.jface.viewers.LabelProvider;
import org.eclipse.jface.viewers.TableViewer;
import org.eclipse.jface.viewers.Viewer;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.SelectionAdapter;
import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.graphics.Image;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Control;
import org.eclipse.swt.widgets.Table;
import org.eclipse.swt.widgets.TableColumn;
import org.eclipse.swt.widgets.TableItem;
import org.eclipse.swt.widgets.Text;
import org.eclipse.swt.widgets.Widget;
/**
* Allows Cloud routes to be viewed and edited.
*/
public class ServiceToApplicationsBindingPart extends UIPart {
private CheckboxTableViewer viewer;
ServicesHandler servicesHandler;
private HashMap<String,ApplicationToService> applicationToServiceMapping = new HashMap<String,ApplicationToService>();
public ServiceToApplicationsBindingPart(ServicesHandler servicesHandler){
this.servicesHandler = servicesHandler;
}
public List<ApplicationToService> getApplicationToService(){
List<ApplicationToService> returnList = new ArrayList<ApplicationToService>();
Iterator<Map.Entry<String,ApplicationToService>> iterator = applicationToServiceMapping.entrySet().iterator();
while(iterator.hasNext()){
Map.Entry<String,ApplicationToService> pairs = iterator.next();
returnList.add(pairs.getValue());
}
return returnList;
}
@Override
public Control createPart(Composite parent) {
Composite generalArea = new Composite(parent, SWT.NONE);
GridLayoutFactory.fillDefaults().numColumns(1).applyTo(generalArea);
GridDataFactory.fillDefaults().grab(true, true).applyTo(generalArea);
createTableArea(generalArea);
return generalArea;
}
protected void createTableArea(Composite parent) {
Text t = new Text(parent, SWT.NONE | SWT.READ_ONLY);
t.setBackground(parent.getBackground());
t.setText(Messages.MANAGE_SERVICES_TO_APPLICATIONS_SELECTION_DESCRIPTION);
Composite tableArea = new Composite(parent, SWT.NONE);
GridLayoutFactory.fillDefaults().numColumns(1).applyTo(tableArea);
GridDataFactory.fillDefaults().grab(true, true).applyTo(tableArea);
final Table table = new Table(tableArea, SWT.BORDER | SWT.CHECK);
GridDataFactory.fillDefaults().grab(true, true).applyTo(table);
viewer = new CheckboxTableViewer(table);
viewer.setContentProvider(new IStructuredContentProvider() {
public Object[] getElements(Object inputElement) {
if (inputElement instanceof Collection) {
return ((Collection<?>) inputElement).toArray(new Object[0]);
}
return null;
}
public void dispose() {
// Do nothing
}
public void inputChanged(Viewer viewer, Object oldInput, Object newInput) {
// Do nothing
}
});
viewer.setLabelProvider(new BindServiceToApplicationLabelProvider(viewer));
// Sort the applications so it is consistent with the application list that shows up in the Applications and Services editor
viewer.setSorter(new CloudFoundryViewerSorter());
viewer.getTable().addSelectionListener(new SelectionAdapter() {
@Override
public void widgetSelected(SelectionEvent event) {
Widget item = event.item;
if (event.detail == SWT.CHECK && item != null && item instanceof TableItem) {
TableItem tableItem = (TableItem) item;
String appName = tableItem.getText();
ApplicationToService curr = applicationToServiceMapping.get(appName);
if (curr != null){
curr.setBoundToServiceAfter(tableItem.getChecked());
}
}
}
});
new TableColumn(table, SWT.NONE, 0);
TableResizeHelper resizer = new TableResizeHelper(viewer);
resizer.enableResizing();
}
/*
* Populates the table with the application names
*/
public void setInput(List<CloudApplication> cloudApplications) {
if (viewer != null){
viewer.setInput(cloudApplications);
Table table = viewer.getTable();
if (table != null){
// Process the applications
int len = table.getItemCount();
String serviceName = servicesHandler.toString();
for (int i=0;i<len;i++){
TableItem tableItem = table.getItem(i);
if (tableItem != null){
Object objCloudApplication = tableItem.getData();
if (objCloudApplication instanceof CloudApplication){
CloudApplication cloudApp = (CloudApplication) objCloudApplication;
List<String> serviceList = cloudApp.getServices();
tableItem.setChecked(serviceList.contains(serviceName));
ApplicationToService applicationToService =
new ApplicationToService(cloudApp,serviceList.contains(serviceName));
applicationToServiceMapping.put(cloudApp.getName(), applicationToService);
}
}
}
}
}
}
/*
* Keeps track of whether the application was bound to the selected service and
* if it is still bound to the selected service
*/
public class ApplicationToService {
private boolean boundToServiceBefore = false;
private boolean boundToServiceAfter = false;
private CloudApplication cloudApplication = null;
public ApplicationToService(CloudApplication cloudApplication, boolean boundToServiceBefore){
this.cloudApplication = cloudApplication;
this.boundToServiceBefore = boundToServiceBefore;
// Initialize this variable to be the same as the "before" variable in
// order to detect if changes had taken place
this.boundToServiceAfter = boundToServiceBefore;
}
public void setBoundToServiceAfter(boolean boundToServiceAfter){
this.boundToServiceAfter = boundToServiceAfter;
}
public boolean getBoundToServiceBefore(){
return boundToServiceBefore;
}
public boolean getBoundToServiceAfter(){
return boundToServiceAfter;
}
public CloudApplication getCloudApplication(){
return cloudApplication;
}
}
protected class BindServiceToApplicationLabelProvider extends LabelProvider implements ITableLabelProvider {
private final TableViewer viewer;
public BindServiceToApplicationLabelProvider(TableViewer viewer) {
this.viewer = viewer;
}
@Override
public Image getImage(Object element) {
return null;
}
public String getColumnText(Object element, int columnIndex) {
String result = null;
TableColumn column = viewer.getTable().getColumn(columnIndex);
if (column != null) {
CloudApplication app = (CloudApplication) element;
result = app.getName();
}
return result;
}
public Image getColumnImage(Object element, int columnIndex) {
return null;
}
}
}