Java tutorial
/******************************************************************************* * Copyright (c) 2013 Red Hat, Inc. * Distributed under license by Red Hat, Inc. All rights reserved. * This program is 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: * Red Hat, Inc. - initial API and implementation ******************************************************************************/ package org.fusesource.ide.fabric8.ui.navigator.properties; import java.util.ArrayList; import java.util.HashSet; import java.util.Iterator; import java.util.List; import java.util.Set; import org.eclipse.jface.action.Action; import org.eclipse.jface.action.IMenuListener; import org.eclipse.jface.action.IMenuManager; import org.eclipse.jface.action.IStatusLineManager; import org.eclipse.jface.action.IToolBarManager; import org.eclipse.jface.action.MenuManager; import org.eclipse.jface.action.Separator; import org.eclipse.jface.dialogs.MessageDialog; import org.eclipse.jface.viewers.ISelectionChangedListener; import org.eclipse.jface.viewers.IStructuredSelection; import org.eclipse.jface.viewers.SelectionChangedEvent; import org.eclipse.jface.viewers.StructuredSelection; import org.eclipse.jface.viewers.TableViewer; import org.eclipse.swt.widgets.Composite; import org.eclipse.ui.views.properties.IPropertySource; import org.eclipse.ui.views.properties.tabbed.ISection; import org.fusesource.ide.commons.Viewers; import org.fusesource.ide.commons.jobs.Jobs; import org.fusesource.ide.commons.tree.Refreshables; import org.fusesource.ide.commons.ui.Selections; import org.fusesource.ide.commons.ui.Shells; import org.fusesource.ide.commons.ui.actions.ActionSupport; import org.fusesource.ide.commons.ui.actions.SeparatorFactory; import org.fusesource.ide.commons.ui.propsrc.PropertySourceTableSheetPage; import org.fusesource.ide.commons.ui.views.IViewPage; import org.fusesource.ide.commons.util.Objects; import org.fusesource.ide.fabric8.core.dto.ContainerDTO; import org.fusesource.ide.fabric8.core.dto.VersionDTO; import org.fusesource.ide.fabric8.ui.FabricPlugin; import org.fusesource.ide.fabric8.ui.actions.CreateChildContainerAction; import org.fusesource.ide.fabric8.ui.actions.CreateSshContainerAction; import org.fusesource.ide.fabric8.ui.actions.Messages; import org.fusesource.ide.fabric8.ui.actions.jclouds.CreateJCloudsContainerAction; import org.fusesource.ide.fabric8.ui.navigator.ContainerNode; import org.fusesource.ide.fabric8.ui.navigator.ContainersNode; import org.fusesource.ide.fabric8.ui.navigator.Fabric; import com.google.common.base.Predicate; import com.google.common.collect.Iterables; import com.google.common.collect.Lists; public class ContainerTableSheetPage extends PropertySourceTableSheetPage { protected static final String VIEW_ID = ContainerTableSheetPage.class.getName(); protected static SeparatorFactory separatorFactory = new SeparatorFactory(VIEW_ID); private final Fabric fabric; private Action openTerminalAction; private Action startAction; private Action stopAction; private Action destroyAction; private CreateChildContainerAction createChildContainerAction; private CreateJCloudsContainerAction createCloudContainerAction; private CreateSshContainerAction createSshContainerAction; private MenuManager setVersionMenu; private Separator separator1 = separatorFactory.createSeparator(); private Separator separator2 = separatorFactory.createSeparator(); private Separator separator3 = separatorFactory.createSeparator(); private Separator separator4 = separatorFactory.createSeparator(); private Runnable refreshRunnable = new Runnable() { @Override public void run() { refresh(); } }; public ContainerTableSheetPage(Fabric fabric) { super(fabric, VIEW_ID, new ContainerTableView(VIEW_ID)); this.fabric = fabric; openTerminalAction = new ActionSupport(Messages.openTerminalLabel, Messages.openTerminalToolTip, FabricPlugin.getDefault().getImageDescriptor("terminal_view.gif")) { @Override public void run() { List<ContainerDTO> selectedContainers = getSelectedContainers(); if (selectedContainers.size() > 0) { ContainerDTO container = selectedContainers.get(0); if (container != null) { ContainerNode.openTerminal(getFabric(), container, null); } } } }; startAction = new ActionSupport(Messages.StartAgentAction, Messages.StartAgentActionToolTip, FabricPlugin.getDefault().getImageDescriptor("start_task.gif")) { @Override public void run() { start(); } }; stopAction = new ActionSupport(Messages.StopAgentAction, Messages.StopAgentActionToolTip, FabricPlugin.getDefault().getImageDescriptor("stop_task.gif")) { @Override public void run() { stop(); } }; destroyAction = new ActionSupport(Messages.DestroyContainerAction, Messages.DestroyContainerActionToolTip, FabricPlugin.getDefault().getImageDescriptor("delete.gif")) { @Override public void run() { destroy(); } }; setVersionMenu = new MenuManager("Set Version", FabricPlugin.getDefault().getImageDescriptor("version.png"), "org.fusesource.ide.actions.update.version"); setVersionMenu.setRemoveAllWhenShown(true); setVersionMenu.addMenuListener(new IMenuListener() { @Override public void menuAboutToShow(IMenuManager manager) { List<VersionDTO> versions = getFabric().getFabricService().getVersions(); Set<String> selectedVersionNames = getSelectedVersionNames(); for (final VersionDTO version : versions) { Action action = new Action(version.getId()) { @Override public void run() { setSelectedContainersVersion(version); } }; action.setEnabled(hasVersionApartFrom(selectedVersionNames, version)); setVersionMenu.add(action); } } }); updateActionStatus(); } @Override public void dispose() { super.dispose(); fabric.removeFabricUpdateRunnable(refreshRunnable); } @Override public void setPropertySources(List<IPropertySource> propertySources) { super.setPropertySources(propertySources); // update the state as the content has changed getCreateChildContainerAction().updateEnabled(); } protected void stop() { final List<ContainerDTO> containers = getSelectedContainers(); String message = Objects.makeString("Stopping ", ", ", "", getSelectedIds()); Jobs.schedule(message, new Runnable() { @Override public void run() { for (ContainerDTO container : containers) { if (container.isAlive()) { container.stop(); } } refresh(); } }); } protected void start() { final List<ContainerDTO> containers = getSelectedContainers(); String message = Objects.makeString("Starting ", ", ", "", getSelectedIds()); Jobs.schedule(message, new Runnable() { @Override public void run() { for (ContainerDTO container : containers) { if (!container.isAlive()) { container.start(); } } refresh(); } }); } protected void destroy() { final List<ContainerDTO> containers = getSelectedContainers(); boolean confirm = MessageDialog.openConfirm(Shells.getShell(), "Destroy Container(s)", Objects.makeString("Do you really want to destroy the selected container(s) ", ", ", "?\nThis will terminate the container process and removes it from Fabric!", getSelectedIds())); if (confirm) { Jobs.schedule(Objects.makeString("Destroying container(s) ", ", ", "", getSelectedIds()), new Runnable() { @Override public void run() { for (ContainerDTO container : containers) { container.destroy(); } refresh(); } }); } } @Override public void refresh() { Viewers.async(new Runnable() { @Override public void run() { final Set<String> selectedIds = getSelectedIds(); Refreshables.refresh(fabric.getContainersNode()); updateData(); Refreshables.refresh(getTableView()); setSelectedContainerIds(selectedIds); updateActionStatus(); } }); } public Fabric getFabric() { return fabric; } @Override public void createControl(Composite parent) { // getTableView().addToolBarActions(openTerminalAction, startAction, stopAction, destroyAction); getTableView().addLocalMenuActions(separator1, openTerminalAction, startAction, stopAction, destroyAction, separator2, setVersionMenu, separator3, getCreateChildContainerAction(), getCreateCloudContainerAction(), getCreateSshContainerAction(), separator4); getTableView().addToolBarActions(openTerminalAction, setVersionMenu, startAction, stopAction, destroyAction); getTableView().setDoubleClickAction(new Action() { @Override public void run() { ContainersNode containersNode = fabric.getContainersNode(); if (containersNode != null) { List<ContainerDTO> selectedContainers = getSelectedContainers(); if (!selectedContainers.isEmpty()) { ContainerDTO container = selectedContainers.get(0); ContainerNode containerNode = containersNode.getContainerNode(container.getId()); if (containerNode != null) { Selections.setSingleSelection(fabric.getRefreshableUI(), containerNode); } } } } }); super.createControl(parent); getTableView().getViewer().addSelectionChangedListener(new ISelectionChangedListener() { @Override public void selectionChanged(SelectionChangedEvent event) { updateActionStatus(); } }); fabric.addFabricUpdateRunnable(refreshRunnable); } protected int countStarted(List<ContainerDTO> containers, boolean flag) { int counter = 0; for (ContainerDTO container : containers) { boolean alive = container.isAlive(); if (alive == flag) { counter++; } } return counter; } @Override public void makeContributions(IMenuManager menuManager, IToolBarManager toolBarManager, IStatusLineManager statusLineManager) { // TODO Auto-generated method stub super.makeContributions(menuManager, toolBarManager, statusLineManager); } protected List<ContainerDTO> getSelectedContainers() { List<ContainerDTO> containers = new ArrayList<ContainerDTO>(); IStructuredSelection selection = getSelection(); if (selection != null) { boolean changed = false; Iterator iterator = selection.iterator(); while (iterator.hasNext()) { ContainerDTO container = ContainerNode.toContainer(iterator.next()); if (container != null) { containers.add(container); } } } return containers; } protected IStructuredSelection getSelection() { return Selections.getStructuredSelection(getTableView().getViewer()); } protected Set<String> getSelectedVersionNames() { Set<String> answer = new HashSet<String>(); List<ContainerDTO> containers = getSelectedContainers(); for (ContainerDTO container : containers) { String version = container.getVersionId(); if (version != null) { answer.add(version); } } return answer; } protected Set<String> getSelectedIds() { Set<String> answer = new HashSet<String>(); List<ContainerDTO> containers = getSelectedContainers(); for (ContainerDTO container : containers) { String id = container.getId(); if (id != null) { answer.add(id); } } return answer; } protected void setSelectedContainerIds(Set<String> selectedIds) { TableViewer viewer = getTableView().getViewer(); if (viewer != null) { List<?> propertySources = getPropertySources(); List selected = new ArrayList(); for (Object object : propertySources) { if (object instanceof IPropertySource) { IPropertySource source = (IPropertySource) object; Object value = source.getPropertyValue("id"); if (value instanceof String && selectedIds.contains(value.toString())) { selected.add(object); } } } viewer.setSelection(new StructuredSelection(selected)); if (selected.size() == 1) { Object first = selected.get(0); viewer.reveal(first); } } } protected void setSelectedContainersVersion(VersionDTO version) { IStructuredSelection selection = getSelection(); if (selection != null) { boolean changed = false; Iterator iterator = selection.iterator(); while (iterator.hasNext()) { ContainerNode agentNode = ContainerNode.toContainerNode(iterator.next()); if (agentNode != null) { if (!agentNode.matches(version)) { agentNode.getContainer().setVersion(version); changed = true; } } } if (changed) { IViewPage view = getView(); if (view instanceof ISection) { ISection section = (ISection) view; section.refresh(); } getFabric().getContainersNode().refresh(); getFabric().getVersionsNode().refresh(); } } } public void updateData() { ContainersNode containersNode = fabric.getContainersNode(); if (containersNode != null) { setPropertySources(containersNode.getPropertySourceList()); } } protected boolean hasVersionApartFrom(Set<String> names, VersionDTO version) { int minSize = names.contains(version.getId()) ? 2 : 1; return names.size() >= minSize; } protected CreateChildContainerAction getCreateChildContainerAction() { if (createChildContainerAction == null) { createChildContainerAction = createChildContainerAction(fabric); createChildContainerAction.updateEnabled(); } return createChildContainerAction; } protected void setCreateChildContainerAction(CreateChildContainerAction createChildContainerAction) { this.createChildContainerAction = createChildContainerAction; } protected CreateJCloudsContainerAction getCreateCloudContainerAction() { if (createCloudContainerAction == null) { createCloudContainerAction = createCloudContainerAction(fabric); } return createCloudContainerAction; } protected void setCreateCloudContainerAction(CreateJCloudsContainerAction createCloudContainerAction) { this.createCloudContainerAction = createCloudContainerAction; } protected CreateSshContainerAction getCreateSshContainerAction() { if (createSshContainerAction == null) { createSshContainerAction = createSshContainerAction(fabric); } return createSshContainerAction; } protected void setCreateSshContainerAction(CreateSshContainerAction createSshContainerAction) { this.createSshContainerAction = createSshContainerAction; } protected CreateJCloudsContainerAction createCloudContainerAction(Fabric fabric) { return new CreateJCloudsContainerAction(fabric); } protected CreateSshContainerAction createSshContainerAction(Fabric fabric) { return new CreateSshContainerAction(fabric); } protected CreateChildContainerAction createChildContainerAction(Fabric fabric) { return new CreateChildContainerAction(fabric); } protected void updateActionStatus() { List<ContainerDTO> selectedContainers = getSelectedContainers(); ContainerNode containerNode = getSingleSelectedRootContainerNode(selectedContainers); getCreateChildContainerAction().setContainerNode(containerNode); getCreateChildContainerAction().updateEnabled(); int selectedContainerSize = selectedContainers.size(); openTerminalAction.setEnabled(selectedContainerSize > 0); startAction.setEnabled(countStarted(selectedContainers, false) > 0); stopAction.setEnabled(countStarted(selectedContainers, true) > 0); destroyAction.setEnabled(countStarted(selectedContainers, true) > 0); } protected ContainerNode getSingleSelectedRootContainerNode(List<ContainerDTO> selectedContainers) { ArrayList<ContainerDTO> rootContainers = Lists .newArrayList(Iterables.filter(selectedContainers, new Predicate<ContainerDTO>() { @Override public boolean apply(ContainerDTO container) { return container != null && container.isRoot(); } })); if (rootContainers.size() == 1 && fabric != null) { ContainerDTO rootContainer = rootContainers.get(0); ContainersNode containersNode = fabric.getContainersNode(); if (containersNode != null) { return containersNode.getContainerNode(rootContainer.getId()); } } return null; } }