Java tutorial
/******************************************************************************* * Copyright (c) 2013 Red Hat, 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: * Red Hat, Inc. - initial API and implementation *******************************************************************************/ package org.eclipse.equinox.internal.p2.ui.dialogs; import java.util.*; import java.util.List; import org.eclipse.equinox.internal.p2.ui.*; import org.eclipse.equinox.internal.p2.ui.model.*; import org.eclipse.equinox.p2.metadata.IInstallableUnit; import org.eclipse.equinox.p2.metadata.Version; import org.eclipse.equinox.p2.operations.*; import org.eclipse.jface.resource.ImageDescriptor; import org.eclipse.jface.viewers.*; import org.eclipse.jface.wizard.WizardPage; import org.eclipse.swt.SWT; import org.eclipse.swt.custom.StackLayout; import org.eclipse.swt.events.SelectionAdapter; import org.eclipse.swt.events.SelectionEvent; import org.eclipse.swt.graphics.Image; import org.eclipse.swt.layout.GridData; import org.eclipse.swt.layout.GridLayout; import org.eclipse.swt.widgets.*; public class RemediationGroup { final int ALLOWPARTIALINSTALL_INDEX = 0; final int ALLOWDIFFERENTVERSION_INDEX = 1; final int ALLOWINSTALLEDUPDATE_INDEX = 2; final int ALLOWINSTALLEDREMOVAL_INDEX = 3; private RemediationOperation remediationOperation; Composite remediationComposite; private Button bestBeingInstalledRelaxedButton; private Button bestInstalledRelaxedButton; Button buildMyOwnSolution; final ArrayList<Button> checkboxes = new ArrayList<Button>(); private Composite resultFoundComposite; private Composite resultComposite; private Composite resultNotFoundComposite; private Composite resultErrorComposite; private Remedy currentRemedy; private TreeViewer treeViewer; private TreeViewerComparator treeComparator; protected IUElementListRoot input; private StackLayout switchRemediationLayout; Group detailsControl; Text detailStatusText; Composite checkBoxesComposite; private IUDetailsGroup iuDetailsGroup; HashMap<String, String[]> CONSTRAINTS; private WizardPage containerPage; public class RemedyContentProvider implements ITreeContentProvider { public void dispose() { // not needed } public void inputChanged(Viewer viewer, Object oldInput, Object newInput) { // not needed } public Object[] getElements(Object inputElement) { Object[] elements = ElementUtils.requestToRemedyElementsCategories((Remedy) inputElement); return elements; } public Object[] getChildren(Object parentElement) { if (parentElement instanceof RemedyElementCategory) { RemedyElementCategory category = (RemedyElementCategory) parentElement; return category.getElements().toArray(); } return null; } public Object getParent(Object element) { return null; } public boolean hasChildren(Object element) { if (element instanceof RemedyElementCategory) { return true; } return false; } } public RemediationGroup(WizardPage page) { CONSTRAINTS = new HashMap<String, String[]>(); CONSTRAINTS.put(ProvUIMessages.RemediationPage_BeingInstalledSection, new String[] { ProvUIMessages.RemediationPage_BeingInstalledSection_AllowPartialInstall, ProvUIMessages.RemediationPage_BeingInstalledSection_AllowDifferentVersion }); CONSTRAINTS.put(ProvUIMessages.RemediationPage_InstalledSection, new String[] { ProvUIMessages.RemediationPage_InstalledSection_AllowInstalledUpdate, ProvUIMessages.RemediationPage_InstalledSection_AllowInstalledRemoval }); containerPage = page; } public Composite getComposite() { return remediationComposite; } public void createRemediationControl(Composite container) { remediationComposite = new Composite(container, SWT.NONE); remediationComposite.setLayout(new GridLayout()); Listener solutionslistener; Label descriptionLabel = new Label(remediationComposite, SWT.NONE); descriptionLabel.setText(ProvUIMessages.RemediationPage_SubDescription); solutionslistener = new Listener() { public void handleEvent(Event e) { Button btn = (Button) e.widget; Remedy remedy = (btn.getData() == null ? null : (Remedy) btn.getData()); checkboxes.get(ALLOWPARTIALINSTALL_INDEX) .setSelection(remedy != null && remedy.getConfig().allowPartialInstall); checkboxes.get(ALLOWDIFFERENTVERSION_INDEX) .setSelection(remedy != null && remedy.getConfig().allowDifferentVersion); checkboxes.get(ALLOWINSTALLEDUPDATE_INDEX) .setSelection(remedy != null && remedy.getConfig().allowInstalledUpdate); checkboxes.get(ALLOWINSTALLEDREMOVAL_INDEX) .setSelection(remedy != null && remedy.getConfig().allowInstalledRemoval); for (Iterator<Button> iterator = checkboxes.iterator(); iterator.hasNext();) { Button btn1 = iterator.next(); btn1.setVisible(true); } if (btn == buildMyOwnSolution && btn.getSelection()) { checkBoxesComposite.setVisible(true); ((GridData) checkBoxesComposite.getLayoutData()).exclude = false; } else { checkBoxesComposite.setVisible(false); ((GridData) checkBoxesComposite.getLayoutData()).exclude = true; } currentRemedy = searchRemedyMatchingUserChoices(); refreshResultComposite(); remediationComposite.layout(false); } }; bestBeingInstalledRelaxedButton = new Button(remediationComposite, SWT.RADIO); bestBeingInstalledRelaxedButton.setText(ProvUIMessages.RemediationPage_BestSolutionBeingInstalledRelaxed); bestBeingInstalledRelaxedButton.addListener(SWT.Selection, solutionslistener); bestInstalledRelaxedButton = new Button(remediationComposite, SWT.RADIO); bestInstalledRelaxedButton.setText(ProvUIMessages.RemediationPage_BestSolutionInstallationRelaxed); bestInstalledRelaxedButton.addListener(SWT.Selection, solutionslistener); buildMyOwnSolution = new Button(remediationComposite, SWT.RADIO); buildMyOwnSolution.setText(ProvUIMessages.RemediationPage_BestSolutionBuilt); buildMyOwnSolution.addListener(SWT.Selection, solutionslistener); Listener checkboxListener = new Listener() { public void handleEvent(Event e) { currentRemedy = searchRemedyMatchingUserChoices(); refreshResultComposite(); } }; checkBoxesComposite = new Composite(remediationComposite, SWT.NONE); checkBoxesComposite.setLayout(new GridLayout(1, false)); GridData data = new GridData(); data.exclude = false; data.horizontalAlignment = SWT.FILL; checkBoxesComposite.setLayoutData(data); GridData gd = new GridData(SWT.FILL, SWT.FILL, true, false); gd.horizontalIndent = 30; Iterator<String> iter = CONSTRAINTS.keySet().iterator(); while (iter.hasNext()) { String key = iter.next(); String[] values = CONSTRAINTS.get(key); for (String value : values) { Button checkBtn = new Button(checkBoxesComposite, SWT.CHECK); checkBtn.setText(value); checkBtn.setData(value); checkBtn.setLayoutData(gd); checkBtn.addListener(SWT.Selection, checkboxListener); checkboxes.add(checkBtn); } } resultComposite = new Composite(remediationComposite, SWT.NONE); // GridLayoutFactory.fillDefaults().numColumns(1).applyTo(resultComposite); switchRemediationLayout = new StackLayout(); resultComposite.setLayout(switchRemediationLayout); GridData data1 = new GridData(GridData.FILL_BOTH); resultComposite.setLayoutData(data1); resultErrorComposite = new Composite(resultComposite, SWT.NONE); resultErrorComposite.setLayout(new GridLayout()); resultErrorComposite.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true)); resultNotFoundComposite = new Composite(resultComposite, SWT.NONE); resultNotFoundComposite.setLayout(new GridLayout()); Label resultNotFoundLabel = new Label(resultNotFoundComposite, SWT.NONE); resultNotFoundLabel.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, false)); resultNotFoundLabel.setText(ProvUIMessages.RemediationPage_NoSolutionFound); resultFoundComposite = new Composite(resultComposite, SWT.NONE); resultFoundComposite.setLayout(new GridLayout()); Group insideFoundComposite = new Group(resultFoundComposite, SWT.NONE); insideFoundComposite.setText(ProvUIMessages.RemediationPage_SolutionDetails); GridLayout gridLayout = new GridLayout(); gridLayout.marginWidth = 0; gridLayout.marginHeight = 0; insideFoundComposite.setLayout(gridLayout); insideFoundComposite.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true)); treeViewer = new TreeViewer(insideFoundComposite, SWT.BORDER | SWT.MULTI | SWT.FULL_SELECTION); ColumnViewerToolTipSupport.enableFor(treeViewer); data = new GridData(GridData.FILL_BOTH); Tree tree = treeViewer.getTree(); tree.setLayoutData(data); tree.setHeaderVisible(true); TreeViewerColumn nameColumn = new TreeViewerColumn(treeViewer, SWT.LEFT); nameColumn.getColumn().setText(ProvUIMessages.ProvUI_NameColumnTitle); nameColumn.getColumn().setWidth(400); nameColumn.getColumn().setMoveable(true); nameColumn.getColumn().addSelectionListener(columnChangeListener(0)); nameColumn.setLabelProvider(new ColumnLabelProvider() { public String getText(Object element) { if (element instanceof RemedyElementCategory) return ((RemedyElementCategory) element).getName(); if (element instanceof RemedyIUDetail) { RemedyIUDetail iu = (RemedyIUDetail) element; String label = iu.getIu().getProperty(IInstallableUnit.PROP_NAME, null); if (label == null) label = iu.getIu().getId(); return label; } return super.getText(element); } public Image getImage(Object element) { if (element instanceof RemedyElementCategory) { RemedyElementCategory category = (RemedyElementCategory) element; if (category.getName().equals(ProvUIMessages.RemedyCategoryAdded)) return ProvUIImages.getImage(ProvUIImages.IMG_ADDED); if (category.getName().equals(ProvUIMessages.RemedyCategoryChanged)) return ProvUIImages.getImage(ProvUIImages.IMG_CHANGED); if (category.getName().equals(ProvUIMessages.RemedyCategoryNotAdded)) return ProvUIImages.getImage(ProvUIImages.IMG_NOTADDED); if (category.getName().equals(ProvUIMessages.RemedyCategoryRemoved)) return ProvUIImages.getImage(ProvUIImages.IMG_REMOVED); } else if (element instanceof RemedyIUDetail) { RemedyIUDetail iuDetail = (RemedyIUDetail) element; int status = compare(iuDetail); if (compare(iuDetail.getBeingInstalledVersion(), iuDetail.getRequestedVersion()) < 0 && containerPage != null && containerPage.getWizard() instanceof UpdateWizard) { Image img = ProvUIImages.getImage(ProvUIImages.IMG_UPGRADED_IU); ImageDescriptor overlay = ProvUIActivator.getDefault().getImageRegistry() .getDescriptor(ProvUIImages.IMG_INFO); String decoratedImageId = ProvUIImages.IMG_UPGRADED_IU.concat(ProvUIImages.IMG_INFO); if (ProvUIActivator.getDefault().getImageRegistry().get(decoratedImageId) == null) { DecorationOverlayIcon decoratedImage = new DecorationOverlayIcon(img, overlay, IDecoration.BOTTOM_RIGHT); ProvUIActivator.getDefault().getImageRegistry().put(decoratedImageId, decoratedImage); } Image decoratedImg = ProvUIActivator.getDefault().getImageRegistry().get(decoratedImageId); return decoratedImg; } if (status < 0) return ProvUIImages.getImage(ProvUIImages.IMG_DOWNGRADED_IU); if (status > 0) return ProvUIImages.getImage(ProvUIImages.IMG_UPGRADED_IU); return ProvUIImages.getImage(ProvUIImages.IMG_IU); } return super.getImage(element); } public String getToolTipText(Object element) { if (element instanceof RemedyIUDetail) { RemedyIUDetail iuDetail = (RemedyIUDetail) element; String toolTipText = ""; //$NON-NLS-1$ List<String> versions = new ArrayList<String>(); if (iuDetail.getInstalledVersion() != null) versions.add(ProvUIMessages.RemedyElementInstalledVersion + iuDetail.getInstalledVersion().toString()); if (iuDetail.getRequestedVersion() != null) versions.add(ProvUIMessages.RemedyElementRequestedVersion + iuDetail.getRequestedVersion().toString()); if (iuDetail.getBeingInstalledVersion() != null) versions.add(ProvUIMessages.RemedyElementBeingInstalledVersion + iuDetail.getBeingInstalledVersion().toString()); for (Iterator<String> iterator = versions.iterator(); iterator.hasNext();) { String version = iterator.next(); toolTipText += (toolTipText == "" ? "" : "\n") + version; //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ } if (containerPage != null && containerPage.getWizard() instanceof UpdateWizard && compare(iuDetail.getBeingInstalledVersion(), iuDetail.getRequestedVersion()) < 0) toolTipText = ProvUIMessages.RemedyElementNotHighestVersion + "\n\n" + toolTipText; //$NON-NLS-1$ return toolTipText; } return super.getToolTipText(element); } private int compare(Version versionA, Version versionB) { if (versionA != null && versionB != null) return versionA.compareTo(versionB); return 0; } private int compare(RemedyIUDetail iuDetail) { if (iuDetail.getStatus() == RemedyIUDetail.STATUS_ADDED && iuDetail.getRequestedVersion() != null && iuDetail.getBeingInstalledVersion() != null) { return compare(iuDetail.getBeingInstalledVersion(), iuDetail.getRequestedVersion()); } if (iuDetail.getStatus() == RemedyIUDetail.STATUS_CHANGED && iuDetail.getInstalledVersion() != null && iuDetail.getBeingInstalledVersion() != null) { return compare(iuDetail.getBeingInstalledVersion(), iuDetail.getInstalledVersion()); } return 0; } }); TreeViewerColumn versionColumn = new TreeViewerColumn(treeViewer, SWT.LEFT); versionColumn.getColumn().setText(ProvUIMessages.ProvUI_VersionColumnTitle); versionColumn.getColumn().setWidth(200); versionColumn.getColumn().addSelectionListener(columnChangeListener(1)); versionColumn.setLabelProvider(new ColumnLabelProvider() { public String getText(Object element) { if (element instanceof RemedyIUDetail) { RemedyIUDetail iu = (RemedyIUDetail) element; if (iu.getBeingInstalledVersion() != null) return iu.getBeingInstalledVersion().toString(); } return ""; //$NON-NLS-1$ } }); TreeViewerColumn idColumn = new TreeViewerColumn(treeViewer, SWT.LEFT); idColumn.getColumn().setText(ProvUIMessages.ProvUI_IdColumnTitle); idColumn.getColumn().setWidth(200); idColumn.getColumn().addSelectionListener(columnChangeListener(2)); idColumn.setLabelProvider(new ColumnLabelProvider() { public String getText(Object element) { if (element instanceof RemedyIUDetail) { RemedyIUDetail iu = (RemedyIUDetail) element; return iu.getIu().getId(); } return ""; //$NON-NLS-1$ } }); treeComparator = new TreeViewerComparator(); treeViewer.setComparator(treeComparator); treeViewer.setContentProvider(new RemedyContentProvider()); treeViewer.setAutoExpandLevel(2); iuDetailsGroup = new IUDetailsGroup(resultErrorComposite, treeViewer, 500, true); } public IUDetailsGroup getDetailsGroup() { return iuDetailsGroup; } private Remedy searchBestDefaultRemedy() { if (remediationOperation.bestSolutionChangingTheRequest() != null) { return remediationOperation.bestSolutionChangingTheRequest(); } if (remediationOperation.bestSolutionChangingWhatIsInstalled() != null) { return remediationOperation.bestSolutionChangingWhatIsInstalled(); } return remediationOperation.getRemedies().get(0); } public void update(RemediationOperation operation) { this.remediationOperation = operation; currentRemedy = searchBestDefaultRemedy(); bestBeingInstalledRelaxedButton.setData(remediationOperation.bestSolutionChangingTheRequest()); bestInstalledRelaxedButton.setData(remediationOperation.bestSolutionChangingWhatIsInstalled()); bestBeingInstalledRelaxedButton.setEnabled(remediationOperation.bestSolutionChangingTheRequest() != null); bestInstalledRelaxedButton.setEnabled(remediationOperation.bestSolutionChangingWhatIsInstalled() != null); bestBeingInstalledRelaxedButton.setSelection(false); bestInstalledRelaxedButton.setSelection(false); buildMyOwnSolution.setSelection(false); if (currentRemedy == remediationOperation.bestSolutionChangingTheRequest()) { bestBeingInstalledRelaxedButton.setSelection(true); bestBeingInstalledRelaxedButton.notifyListeners(SWT.Selection, new Event()); } else if (currentRemedy == remediationOperation.bestSolutionChangingWhatIsInstalled()) { bestInstalledRelaxedButton.setSelection(true); bestInstalledRelaxedButton.notifyListeners(SWT.Selection, new Event()); } else { buildMyOwnSolution.setData(currentRemedy); buildMyOwnSolution.setSelection(true); buildMyOwnSolution.notifyListeners(SWT.Selection, new Event()); } } private boolean isContraintOK(int btnIndex, boolean value) { return (checkboxes.get(btnIndex).getSelection() && value) || (!checkboxes.get(btnIndex).getSelection() && !value); } Remedy searchRemedyMatchingUserChoices() { List<Remedy> remedies = remediationOperation.getRemedies(); for (Remedy remedy : remedies) { if (isContraintOK(ALLOWPARTIALINSTALL_INDEX, remedy.getConfig().allowPartialInstall) && isContraintOK(ALLOWDIFFERENTVERSION_INDEX, remedy.getConfig().allowDifferentVersion) && isContraintOK(ALLOWINSTALLEDUPDATE_INDEX, remedy.getConfig().allowInstalledUpdate) && isContraintOK(ALLOWINSTALLEDREMOVAL_INDEX, remedy.getConfig().allowInstalledRemoval)) { if (remedy.getRequest() != null) { return remedy; } } } return null; } void refreshResultComposite() { resultComposite.setVisible(true); if (!checkboxes.get(ALLOWPARTIALINSTALL_INDEX).getSelection() && !checkboxes.get(ALLOWDIFFERENTVERSION_INDEX).getSelection() && !checkboxes.get(ALLOWINSTALLEDUPDATE_INDEX).getSelection() && !checkboxes.get(ALLOWINSTALLEDREMOVAL_INDEX).getSelection()) { switchRemediationLayout.topControl = resultErrorComposite; } else { if (currentRemedy == null) { switchRemediationLayout.topControl = resultNotFoundComposite; } else { if (currentRemedy.getIusDetails().size() == 0) { switchRemediationLayout.topControl = resultNotFoundComposite; } else { treeViewer.setInput(currentRemedy); switchRemediationLayout.topControl = resultFoundComposite; } } } resultComposite.layout(); containerPage.setPageComplete(currentRemedy != null); } public Remedy getCurrentRemedy() { return currentRemedy; } public String getMessage() { return ProvUIMessages.InstallRemediationPage_Description; } class TreeViewerComparator extends ViewerComparator { private int sortColumn = 0; private int ascending = 1; @SuppressWarnings("unchecked") @Override public int compare(Viewer viewer1, Object e1, Object e2) { if (!(e1 instanceof RemedyIUDetail && e2 instanceof RemedyIUDetail)) return 0; IInstallableUnit iu1 = ((RemedyIUDetail) e1).getIu(); IInstallableUnit iu2 = ((RemedyIUDetail) e2).getIu(); if (iu1 != null && iu2 != null) { if (viewer1 instanceof TreeViewer) { TreeViewer theTreeViewer = (TreeViewer) viewer1; ColumnLabelProvider labelProvider = (ColumnLabelProvider) theTreeViewer .getLabelProvider(sortColumn); String e1p = labelProvider.getText(e1); String e2p = labelProvider.getText(e2); return ascending * getComparator().compare(e1p, e2p); } return 0; } return super.compare(viewer1, e1, e2); } public void setSortColumn(int sortColumn) { this.sortColumn = sortColumn; } public int getSortColumn() { return sortColumn; } public boolean isAscending() { return ascending == 1 ? true : false; } public void setAscending(boolean asc) { this.ascending = asc ? 1 : -1; } } private SelectionAdapter columnChangeListener(final int index) { return new SelectionAdapter() { @Override public void widgetSelected(SelectionEvent e) { updateTableSorting(index); } }; } private void updateTableSorting(int columnIndex) { TreeViewerComparator comparator = (TreeViewerComparator) treeViewer.getComparator(); // toggle direction if it's the same column if (columnIndex == treeComparator.getSortColumn()) { comparator.setAscending(!treeComparator.isAscending()); } comparator.setSortColumn(columnIndex); treeViewer.getTree().setSortColumn(treeViewer.getTree().getColumn(columnIndex)); treeViewer.getTree().setSortDirection(comparator.isAscending() ? SWT.UP : SWT.DOWN); treeViewer.refresh(false); treeViewer.expandToLevel(2); } }