Java tutorial
/******************************************************************************* * Copyright (c) 2005, 2007 IBM Corporation 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: * IBM Corporation - initial API and implementation * Stefan Dimov, stefan.dimov@sap.com - bug 207826 *******************************************************************************/ /* * Created on Jan 17, 2005 */ package org.eclipse.jst.j2ee.internal; import java.util.Arrays; import java.util.HashSet; import java.util.Iterator; import java.util.LinkedList; import java.util.List; import java.util.Set; import org.eclipse.core.resources.IProject; import org.eclipse.jface.viewers.CheckStateChangedEvent; import org.eclipse.jface.viewers.CheckboxTableViewer; import org.eclipse.jface.viewers.ICheckStateListener; import org.eclipse.jface.viewers.ISelectionChangedListener; import org.eclipse.jface.viewers.IStructuredSelection; import org.eclipse.jface.viewers.SelectionChangedEvent; import org.eclipse.jst.j2ee.application.internal.operations.ClassPathSelection; import org.eclipse.jst.j2ee.application.internal.operations.ClasspathElement; import org.eclipse.jst.j2ee.componentcore.J2EEModuleVirtualArchiveComponent; import org.eclipse.jst.j2ee.internal.common.ClasspathModel; import org.eclipse.jst.j2ee.internal.common.ClasspathModelEvent; import org.eclipse.jst.j2ee.internal.dialogs.DependencyConflictResolveDialog; import org.eclipse.jst.j2ee.internal.listeners.IValidateEditListener; import org.eclipse.jst.j2ee.internal.plugin.J2EEUIMessages; import org.eclipse.jst.j2ee.internal.project.J2EEProjectUtilities; import org.eclipse.jst.j2ee.internal.wizard.AvailableJarsProvider; import org.eclipse.jst.j2ee.project.EarUtilities; import org.eclipse.jst.j2ee.project.JavaEEProjectUtilities; import org.eclipse.jst.j2ee.project.facet.IJ2EEFacetConstants; import org.eclipse.swt.SWT; import org.eclipse.swt.layout.GridData; import org.eclipse.swt.layout.GridLayout; import org.eclipse.swt.widgets.Button; import org.eclipse.swt.widgets.Composite; import org.eclipse.swt.widgets.Event; import org.eclipse.swt.widgets.Group; import org.eclipse.swt.widgets.Listener; import org.eclipse.ui.PlatformUI; import org.eclipse.wst.common.componentcore.ComponentCore; import org.eclipse.wst.common.componentcore.resources.IVirtualComponent; import org.eclipse.wst.common.componentcore.resources.IVirtualReference; /** * @author jialin */ public class ClasspathTableManager implements Listener, ICommonManifestUIConstants { protected Button useClientJARsBtn; protected Button useServerJARsBtn; protected Button useAnyJARsBtn; protected Button upButton; protected Button downButton; protected Button selectAllButton; protected Button deselectAllButton; protected IClasspathTableOwner owner; protected Composite buttonColumn; protected ClasspathModel model; protected CheckboxTableViewer availableJARsViewer; protected IValidateEditListener validateEditListener; /** * @deprecated this field should be removed */ protected boolean isWLPEntry; protected Group radioGroup; protected boolean readOnly; protected AvailableJarsProvider availableJarsProvider; protected Button externalJarButton; protected Button projectJarButton; protected Button addVariableButton; protected Set compsToUncheck = new HashSet(); /** * Constructor for ButtonBarManager. */ public ClasspathTableManager(IClasspathTableOwner owner, ClasspathModel model) { this(owner, model, null); } public ClasspathTableManager(IClasspathTableOwner owner, ClasspathModel model, IValidateEditListener listener) { super(); this.owner = owner; this.model = model; this.validateEditListener = listener; } public void fillComposite(Composite parent) { GridLayout layout = new GridLayout(); layout.numColumns = 2; layout.marginHeight = 0; parent.setLayout(layout); parent.setLayoutData(new GridData(GridData.FILL_BOTH)); createRadioGroup(parent); createTable(parent); createButtonColumn(parent); } public void fillWLPComposite(Composite parent) { GridLayout layout = new GridLayout(); layout.numColumns = 2; layout.marginHeight = 0; parent.setLayout(layout); parent.setLayoutData(new GridData(GridData.FILL_BOTH)); createTable(parent); createWLPButtonColumn(parent); } public void fillWebRefComposite(Composite parent) { GridLayout layout = new GridLayout(); layout.numColumns = 2; layout.marginHeight = 0; parent.setLayout(layout); parent.setLayoutData(new GridData(GridData.FILL_BOTH)); createTable(parent); createWebRefButtonColumn(parent); } private void initializeEJBClientDefaults() { if (model == null || model.getClassPathSelection() == null) return; boolean shouldUseServerJARs = false; ClassPathSelection selection = model.getClassPathSelection(); int filterLevel; boolean ejbSelected = selection.isAnyEJBJarSelected(); boolean clientSelected = selection.isAnyEJBClientJARSelected(); if (ejbSelected && clientSelected) filterLevel = ClassPathSelection.FILTER_NONE; else if (shouldUseServerJARs) { if (clientSelected) filterLevel = ClassPathSelection.FILTER_NONE; else filterLevel = ClassPathSelection.FILTER_EJB_CLIENT_JARS; } else { if (ejbSelected) filterLevel = ClassPathSelection.FILTER_NONE; else filterLevel = ClassPathSelection.FILTER_EJB_SERVER_JARS; } initFilterLevel(filterLevel); } private void initFilterLevel(int filterLevel) { model.getClassPathSelection().setFilterLevel(filterLevel); switch (filterLevel) { case (ClassPathSelection.FILTER_NONE): useAnyJARsBtn.setSelection(true); useClientJARsBtn.setSelection(false); useServerJARsBtn.setSelection(false); break; case (ClassPathSelection.FILTER_EJB_CLIENT_JARS): useAnyJARsBtn.setSelection(false); useClientJARsBtn.setSelection(false); useServerJARsBtn.setSelection(true); break; case (ClassPathSelection.FILTER_EJB_SERVER_JARS): useAnyJARsBtn.setSelection(false); useClientJARsBtn.setSelection(true); useServerJARsBtn.setSelection(false); break; } } private void createRadioGroup(Composite parent) { radioGroup = owner.createGroup(parent); radioGroup.setText(EJB_CLIENT_RADIO_UI_); GridData data = new GridData(GridData.HORIZONTAL_ALIGN_FILL | GridData.VERTICAL_ALIGN_FILL); data.horizontalSpan = 2; data.horizontalIndent = 0; GridLayout layout = new GridLayout(3, false); radioGroup.setLayout(layout); radioGroup.setLayoutData(data); useServerJARsBtn = createRadioButton(USE_EJB_SERVER_JARs_UI_, radioGroup); useClientJARsBtn = createRadioButton(USE_EJB_CLIENT_JARs_UI_, radioGroup); useAnyJARsBtn = createRadioButton(USE_BOTH_UI_, radioGroup); initializeEJBClientDefaults(); } protected void createButtonColumn(Composite parent) { buttonColumn = owner.createButtonColumnComposite(parent); GridData data = new GridData(GridData.HORIZONTAL_ALIGN_END); buttonColumn.setLayoutData(data); createPushButtons(); } protected void createWLPButtonColumn(Composite parent) { buttonColumn = owner.createButtonColumnComposite(parent); GridData data = new GridData(GridData.HORIZONTAL_ALIGN_END); buttonColumn.setLayoutData(data); createWLPPushButtons(); } protected void createWebRefButtonColumn(Composite parent) { buttonColumn = owner.createButtonColumnComposite(parent); GridData data = new GridData(GridData.HORIZONTAL_ALIGN_END); buttonColumn.setLayoutData(data); createWebRefPushButtons(); } protected void createTable(Composite parent) { availableJARsViewer = owner.createAvailableJARsViewer(parent); GridData gd = new GridData(GridData.HORIZONTAL_ALIGN_FILL | GridData.FILL_VERTICAL); availableJARsViewer.getTable().setLayoutData(gd); availableJarsProvider = new AvailableJarsProvider(); availableJARsViewer.setContentProvider(availableJarsProvider); availableJARsViewer.setLabelProvider(availableJarsProvider); addTableListeners(); } protected void createWLPPushButtons() { selectAllButton = createPushButton(SELECT_ALL_BUTTON); deselectAllButton = createPushButton(DE_SELECT_ALL_BUTTON); projectJarButton = createPushButton(J2EEUIMessages.getResourceString("PROJECT_JAR")); //$NON-NLS-1$ externalJarButton = createPushButton(J2EEUIMessages.getResourceString("EXTERNAL_JAR")); //$NON-NLS-1$ addVariableButton = createPushButton(J2EEUIMessages.getResourceString("ADDVARIABLE"));//$NON-NLS-1$ if (isReadOnly()) { selectAllButton.setEnabled(false); deselectAllButton.setEnabled(false); projectJarButton.setEnabled(false); externalJarButton.setEnabled(false); addVariableButton.setEnabled(false); } } protected void createWebRefPushButtons() { selectAllButton = createPushButton(SELECT_ALL_BUTTON); deselectAllButton = createPushButton(DE_SELECT_ALL_BUTTON); if (isReadOnly()) { selectAllButton.setEnabled(false); deselectAllButton.setEnabled(false); } } protected void createPushButtons() { upButton = createPushButton(UP_BUTTON); downButton = createPushButton(DOWN_BUTTON); selectAllButton = createPushButton(SELECT_ALL_BUTTON); deselectAllButton = createPushButton(DE_SELECT_ALL_BUTTON); if (isReadOnly()) { upButton.setEnabled(false); downButton.setEnabled(false); selectAllButton.setEnabled(false); deselectAllButton.setEnabled(false); } } protected void createWebLibPushButtons() { selectAllButton = createPushButton(SELECT_ALL_BUTTON); deselectAllButton = createPushButton(DE_SELECT_ALL_BUTTON); projectJarButton = createPushButton(J2EEUIMessages.getResourceString("PROJECT_JAR")); //$NON-NLS-1$ externalJarButton = createPushButton(J2EEUIMessages.getResourceString("EXTERNAL_JAR")); //$NON-NLS-1$ addVariableButton = createPushButton(J2EEUIMessages.getResourceString("ADDVARIABLE"));//$NON-NLS-1$ if (isReadOnly()) { selectAllButton.setEnabled(false); deselectAllButton.setEnabled(false); } } protected Button createPushButton(String label) { Button aButton = owner.primCreatePushButton(label, buttonColumn); aButton.addListener(SWT.Selection, this); aButton.setLayoutData(new GridData(GridData.FILL_HORIZONTAL)); return aButton; } protected Button createRadioButton(String label, Composite parent) { Button aButton = owner.primCreateRadioButton(label, parent); aButton.addListener(SWT.Selection, this); return aButton; } /** * @see Listener#handleEvent(Event) */ public void handleEvent(Event event) { ClasspathModelEvent evt = new ClasspathModelEvent(ClasspathModelEvent.CLASS_PATH_CHANGED); model.fireNotification(evt); if (event.widget == upButton) upButtonSelected(); else if (event.widget == downButton) downButtonSelected(); else if (event.widget == selectAllButton) selectAllButtonSelected(); else if (event.widget == deselectAllButton) deselectAllButtonSelected(); else if (event.widget == useServerJARsBtn) handleServerJARsButtonSelected(); else if (event.widget == useClientJARsBtn) handleClientJARsButtonSelected(); else if (event.widget == useAnyJARsBtn) handleAnyJARsButtonSelected(); else if (event.widget == projectJarButton) handleSelectProjectJarButton(); else if (event.widget == externalJarButton) handleSelectExternalJarButton(); else if (event.widget == addVariableButton) handleSelectVariableButton(); } private void handleSelectExternalJarButton() { //owner.handleSelectExternalJarButton(); if (owner instanceof WebLibDependencyPropertiesPage) { WebLibDependencyPropertiesPage control = (WebLibDependencyPropertiesPage) owner; control.handleSelectExternalJarButton(); } } private void handleSelectProjectJarButton() { //owner.handleSelectExternalJarButton(); if (owner instanceof WebLibDependencyPropertiesPage) { WebLibDependencyPropertiesPage control = (WebLibDependencyPropertiesPage) owner; control.handleSelectProjectJarButton(); } } private void handleSelectVariableButton() { //owner.handleSelectVariableButton(); if (owner instanceof WebLibDependencyPropertiesPage) { WebLibDependencyPropertiesPage control = (WebLibDependencyPropertiesPage) owner; control.handleSelectVariableButton(); } } private void handleServerJARsButtonSelected() { model.selectFilterLevel(ClassPathSelection.FILTER_EJB_CLIENT_JARS); refresh(); } private void handleClientJARsButtonSelected() { model.selectFilterLevel(ClassPathSelection.FILTER_EJB_SERVER_JARS); refresh(); } private void handleAnyJARsButtonSelected() { model.selectFilterLevel(ClassPathSelection.FILTER_NONE); refresh(); } public boolean validatateEdit() { return validateEditListener.validateState().isOK(); } protected void deselectAllButtonSelected() { if (!validatateEdit()) return; availableJARsViewer.setAllChecked(false); model.setAllClasspathElementsSelected(false); compsToUncheck.clear(); } protected void selectAllButtonSelected() { if (!validatateEdit()) return; availableJARsViewer.setAllChecked(true); Object[] elements = availableJARsViewer.getCheckedElements(); model.setAllClasspathElementsSelected(Arrays.asList(elements), true); for (int i = 0; i < elements.length; i++) { ClasspathElement el = (ClasspathElement) elements[i]; el.getComponent().getAdapter(IVirtualComponent.class); IVirtualComponent ar = el.getTargetComponent(); IVirtualComponent comp = (ar instanceof J2EEModuleVirtualArchiveComponent) ? ar : el.getComponent(); if (isLibrary(comp)) compsToUncheck.add(comp); } } protected java.util.List getSelectionAsList() { return ((IStructuredSelection) availableJARsViewer.getSelection()).toList(); } protected java.util.List getCheckedLibsAsList() { List res = new LinkedList(); Iterator it = compsToUncheck.iterator(); while (it.hasNext()) { IVirtualComponent comp = (IVirtualComponent) it.next(); res.add(comp); } return res; } protected void downButtonSelected() { if (!validatateEdit()) return; model.moveDown(getSelectionAsList()); refresh(); } protected void upButtonSelected() { if (!validatateEdit()) return; model.moveUp(getSelectionAsList()); refresh(); } /* * Updates the enable state of the all buttons */ protected void updateButtonEnablements() { int[] indices = availableJARsViewer.getTable().getSelectionIndices(); if (upButton != null && downButton != null) { upButton.setEnabled(canMoveUp(indices)); downButton.setEnabled(canMoveDown(indices, availableJARsViewer.getTable().getItemCount())); } } protected boolean canMoveUp(int[] indices) { return canMove(indices, 0); } protected boolean canMoveDown(int[] indices, int itemCount) { return canMove(indices, itemCount - 1); } protected boolean canMove(int[] indices, int referenceIndex) { int length = indices.length; if (length == 0) return false; for (int i = 0; i < length; i++) { if (indices[i] == referenceIndex) return false; } return true; } protected void addTableListeners() { addCheckStateListener(); addSelectionListener(); } protected void addCheckStateListener() { availableJARsViewer.addCheckStateListener(new ICheckStateListener() { public void checkStateChanged(CheckStateChangedEvent event) { availableJARCheckStateChanged(event); } }); } private boolean isLibrary(IVirtualComponent component) { if (JavaEEProjectUtilities.isApplicationClientComponent(component)) return false; if (JavaEEProjectUtilities.isEARProject(component.getProject()) && component.isBinary()) return true; if (JavaEEProjectUtilities.isEJBComponent(component)) return false; if (JavaEEProjectUtilities.isDynamicWebComponent(component)) return false; if (JavaEEProjectUtilities.isJCAComponent(component)) return false; if (JavaEEProjectUtilities.isStaticWebProject(component.getProject())) return false; if (JavaEEProjectUtilities.isProjectOfType(component.getProject(), IJ2EEFacetConstants.JAVA)) return true; return true; } protected void availableJARCheckStateChanged(CheckStateChangedEvent event) { ClasspathElement el = (ClasspathElement) event.getElement(); //226823 targeting a regular java project from web libs if (el.getComponent() == null) { ClasspathElement element = (ClasspathElement) event.getElement(); model.setSelection(element, event.getChecked()); return; } el.getComponent().getAdapter(IVirtualComponent.class); IVirtualComponent ar = el.getTargetComponent(); IVirtualComponent comp = (ar instanceof J2EEModuleVirtualArchiveComponent) ? ar : el.getComponent(); CheckboxTableViewer v = (CheckboxTableViewer) event.getSource(); if (isLibrary(comp) && event.getChecked()) { if (isConflict(comp)) { DependencyConflictResolveDialog dlg = new DependencyConflictResolveDialog( PlatformUI.getWorkbench().getActiveWorkbenchWindow().getShell(), DependencyConflictResolveDialog.DLG_TYPE_1); if (dlg.open() == DependencyConflictResolveDialog.BTN_ID_CANCEL) { v.setChecked(el, false); return; } } compsToUncheck.add(comp); } else if (!event.getChecked()) { compsToUncheck.remove(comp); } if (!EarUtilities.isStandaloneProject(model.getComponent().getProject()) && (isReadOnly() || !validatateEdit() || (isMyClientJAR(event) && !event.getChecked()))) { availableJARsViewer.setChecked(event.getElement(), !event.getChecked()); return; } ClasspathElement element = (ClasspathElement) event.getElement(); model.setSelection(element, event.getChecked()); } private boolean isConflict(IVirtualComponent lib) { IProject[] ears = EarUtilities.getReferencingEARProjects(lib.getProject()); for (int i = 0; i < ears.length; i++) { if (J2EEProjectUtilities.isJEEProject(ears[i])) { IVirtualComponent cmp = ComponentCore.createComponent(ears[i]); IVirtualReference[] refs = cmp.getReferences(); for (int j = 0; j < refs.length; j++) { if (model.getProject().equals(refs[j].getReferencedComponent().getProject())) { IVirtualReference ref = cmp.getReference(lib.getName()); if (ref != null && !ref.getRuntimePath().isRoot()) return true; } } } } return false; } /** * @param event * @return */ private boolean isMyClientJAR(CheckStateChangedEvent event) { ClasspathElement element = (ClasspathElement) event.getElement(); if (getClasspathSelection() != null) return getClasspathSelection().isMyClientJAR(element); return false; } protected void addSelectionListener() { availableJARsViewer.addSelectionChangedListener(new ISelectionChangedListener() { public void selectionChanged(SelectionChangedEvent event) { tableSelectionChanged(); } }); } protected void tableSelectionChanged() { if (!isReadOnly()) updateButtonEnablements(); } protected ClassPathSelection getClasspathSelection() { if (model == null || model.getSelectedEARComponent() == null && !(EarUtilities.isStandaloneProject(model.getComponent().getProject()))) return null; return model.getClassPathSelection(); } public void refreshCheckedItems() { if (getClasspathSelection() == null) return; java.util.List elements = getClasspathSelection().getClasspathElements(); for (int i = 0; i < elements.size(); i++) { ClasspathElement element = (ClasspathElement) elements.get(i); availableJARsViewer.setChecked(element, element.isSelected()); if (element.isClasspathDependency()) { availableJARsViewer.setGrayed(element, true); } } } public void refresh() { final IProject project = model.getComponent().getProject(); // if not a web project and it is either referenced by an EAR or a dynamic web project. if (!isWLPEntry() && (!EarUtilities.isStandaloneProject(project) || (J2EEProjectUtilities.getReferencingWebProjects(project).length > 0))) { availableJARsViewer.setInput(getClasspathSelection()); GridData data = new GridData(GridData.FILL_BOTH); int numlines = Math.min(10, availableJARsViewer.getTable().getItemCount()); data.heightHint = availableJARsViewer.getTable().getItemHeight() * numlines; availableJARsViewer.getTable().setLayoutData(data); refreshCheckedItems(); updateButtonEnablements(); } else { availableJARsViewer.setInput(model.getClassPathSelectionForWLPs()); GridData data = new GridData(GridData.FILL_BOTH); int numlines = Math.min(10, availableJARsViewer.getTable().getItemCount()); data.heightHint = availableJARsViewer.getTable().getItemHeight() * numlines; availableJARsViewer.getTable().setLayoutData(data); refreshWLPCheckedItems(); } } private void refreshWLPCheckedItems() { if (availableJARsViewer.getInput() != null) { java.util.List elements = ((ClassPathSelection) availableJARsViewer.getInput()).getClasspathElements(); for (int i = 0; i < elements.size(); i++) { ClasspathElement element = (ClasspathElement) elements.get(i); availableJARsViewer.setChecked(element, element.isSelected()); if (element.isClasspathDependency()) { availableJARsViewer.setGrayed(element, true); } } } } /** * Gets the model. * @return Returns a ClasspathModel */ public ClasspathModel getModel() { return model; } /** * Sets the model. * @param model The model to set */ public void setModel(ClasspathModel model) { this.model = model; initializeEJBClientDefaults(); } /** * Returns the readOnly. * @return boolean */ public boolean isReadOnly() { return readOnly; } /** * Sets the readOnly. * @param readOnly The readOnly to set */ public void setReadOnly(boolean readOnly) { this.readOnly = readOnly; } public boolean isWLPEntry() { return model.isWLPModel(); } /** * @deprecated do not use this method * @param isWLPEntry */ public void setWLPEntry(boolean isWLPEntry) { this.isWLPEntry = isWLPEntry; } }