Java tutorial
/******************************************************************************* * Copyright (c) 2007-2008 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 * * Contributor: * Red Hat, Inc. - initial API and implementation ******************************************************************************/ package org.hibernate.eclipse.launch; import java.util.ArrayList; import java.util.Iterator; import java.util.List; import java.util.Properties; import org.eclipse.datatools.connectivity.ConnectionProfileException; import org.eclipse.datatools.connectivity.IConnectionProfile; import org.eclipse.datatools.connectivity.IProfileListener; import org.eclipse.datatools.connectivity.ProfileManager; import org.eclipse.datatools.connectivity.internal.ui.wizards.NewCPWizard; import org.eclipse.datatools.connectivity.internal.ui.wizards.NewCPWizardCategoryFilter; import org.eclipse.datatools.connectivity.ui.wizards.NewConnectionProfileWizard; import org.eclipse.debug.internal.ui.SWTFactory; import org.eclipse.jface.action.Action; import org.eclipse.jface.viewers.ComboViewer; import org.eclipse.jface.viewers.ISelectionChangedListener; import org.eclipse.jface.viewers.IStructuredContentProvider; import org.eclipse.jface.viewers.LabelProvider; import org.eclipse.jface.viewers.SelectionChangedEvent; import org.eclipse.jface.viewers.StructuredSelection; import org.eclipse.jface.viewers.Viewer; import org.eclipse.jface.wizard.WizardDialog; import org.eclipse.swt.SWT; import org.eclipse.swt.events.ModifyListener; import org.eclipse.swt.events.SelectionEvent; import org.eclipse.swt.events.SelectionListener; import org.eclipse.swt.layout.GridData; import org.eclipse.swt.widgets.Button; import org.eclipse.swt.widgets.Combo; import org.eclipse.swt.widgets.Composite; import org.eclipse.swt.widgets.Display; import org.eclipse.ui.internal.dialogs.PropertyDialog; import org.hibernate.eclipse.console.HibernateConsoleMessages; import org.hibernate.eclipse.console.HibernateConsolePlugin; import org.hibernate.util.xpl.StringHelper; /** * * * @author Vitali Yemialyanchyk */ public class ConnectionProfileCtrl { protected ComboViewer comboControl; protected Button buttonNew; protected Button buttonEdit; private boolean useSynteticValues = true; static final String NO_CONNECTIN_NAME = HibernateConsoleMessages.ConnectionProfileCtrl_HibernateConfiguredConnection; static final String JPA_CONNECTIN_NAME = HibernateConsoleMessages.ConnectionProfileCtrl_JPAConfiguredConnection; static final protected ConnectionWrapper NO_CONNECTION_PLACEHOLDER = new ConnectionWrapper(NO_CONNECTIN_NAME, null); static final protected ConnectionWrapper JPA_CONNECTION_PLACEHOLDER = new ConnectionWrapper(JPA_CONNECTIN_NAME, null); private static class ConnectionWrapper { final private String id; final private IConnectionProfile profile; public ConnectionWrapper(String id, IConnectionProfile profile) { this.id = id; this.profile = profile; } public String getId() { return id; } public IConnectionProfile getProfile() { return profile; } @Override public boolean equals(Object obj) { if (obj == null || !(obj instanceof ConnectionWrapper)) { return false; } ConnectionWrapper cw = (ConnectionWrapper) obj; return this.getId().equals(cw.getId()); } @Override public int hashCode() { return this.getId().hashCode(); } } protected ArrayList<ModifyListener> modifyListeners = new ArrayList<ModifyListener>(); public ConnectionProfileCtrl(Composite comp, int hspan, String defaultValue) { createComboWithTwoButtons(comp, hspan, defaultValue, new NewConnectionProfileAction(), new EditConnectionProfileAction()); } public void setUseSynteticValue(boolean value) { this.useSynteticValues = value; this.updateInput(); } public class ButtonPressedAction extends Action implements SelectionListener { public ButtonPressedAction(String label) { super(label); } public void widgetDefaultSelected(SelectionEvent e) { } public void widgetSelected(SelectionEvent e) { run(); } } public class ConnectionProfileChangeListener implements IProfileListener { /* (non-Javadoc) * @see org.eclipse.datatools.connectivity.IProfileListener#profileAdded(org.eclipse.datatools.connectivity.IConnectionProfile) */ public void profileAdded(final IConnectionProfile profile) { Display.getDefault().asyncExec(new Runnable() { public void run() { updateInput(); selectValue(profile.getName()); validate(); } }); } /* (non-Javadoc) * @see org.eclipse.datatools.connectivity.IProfileListener#profileChanged(org.eclipse.datatools.connectivity.IConnectionProfile) */ public void profileChanged(IConnectionProfile profile) { profileAdded(profile); } /* (non-Javadoc) * @see org.eclipse.datatools.connectivity.IProfileListener#profileDeleted(org.eclipse.datatools.connectivity.IConnectionProfile) */ public void profileDeleted(IConnectionProfile profile) { // this event never happens } } public class NewConnectionProfileAction extends ButtonPressedAction { /** * @param label */ public NewConnectionProfileAction() { super(HibernateConsoleMessages.ConnectionProfileCtrl_New); } @Override public void run() { IProfileListener listener = new ConnectionProfileChangeListener(); ProfileManager.getInstance().addProfileListener(listener); NewCPWizardCategoryFilter filter = new NewCPWizardCategoryFilter( "org.eclipse.datatools.connectivity.db.category"); //$NON-NLS-1$ NewCPWizard wizard = new NewCPWizard(filter, null); new NewConnectionProfileWizard() { public boolean performFinish() { // create profile only try { ProfileManager.getInstance().createProfile(getProfileName() == null ? "" //$NON-NLS-1$ : getProfileName(), getProfileDescription() == null ? "" //$NON-NLS-1$ : getProfileDescription(), mProviderID, getProfileProperties(), mProfilePage.getRepository() == null ? "" //$NON-NLS-1$ : mProfilePage.getRepository().getName(), false); } catch (ConnectionProfileException e) { HibernateConsolePlugin.getDefault().log(e); } return true; } @Override public void addCustomPages() { } @Override public Properties getProfileProperties() { return null; } }; WizardDialog wizardDialog = new WizardDialog(Display.getCurrent().getActiveShell(), wizard); wizardDialog.open(); ProfileManager.getInstance().removeProfileListener(listener); } } /** * */ public class EditConnectionProfileAction extends ButtonPressedAction { /** * @param label */ public EditConnectionProfileAction() { super(HibernateConsoleMessages.ConnectionProfileCtrl_Edit); } /** * */ @Override public void run() { ConnectionWrapper currentConnection = getSelectedConnection(); if (null == currentConnection || currentConnection.getProfile() == null) { return; } IConnectionProfile selectedProfile = currentConnection.getProfile(); PropertyDialog.createDialogOn(Display.getCurrent().getActiveShell(), "org.eclipse.datatools.connectivity.db.generic.profileProperties", //$NON-NLS-1$ selectedProfile).open(); if (!currentConnection.getId().equals(selectedProfile.getName())) { updateInput(); selectValue(selectedProfile.getName()); } validate(); } }; public Composite createComboWithTwoButtons(Composite container, int hspan, String defaultValue, ButtonPressedAction action1, ButtonPressedAction action2) { Composite comp = SWTFactory.createComposite(container, container.getFont(), 3, 1, GridData.FILL_HORIZONTAL, 0, 0); Combo combo; combo = new Combo(comp, SWT.DROP_DOWN | SWT.READ_ONLY); combo.setBackground(Display.getDefault().getSystemColor(SWT.COLOR_WHITE)); comboControl = new ComboViewer(combo); comboControl.setContentProvider(new IStructuredContentProvider() { public void dispose() { } public void inputChanged(Viewer viewer, Object oldInput, Object newInput) { } public Object[] getElements(Object inputElement) { return getProfileNameList().toArray(); } }); comboControl.setLabelProvider(new LabelProvider() { @Override public String getText(Object element) { ConnectionWrapper cw = (ConnectionWrapper) element; return cw.getId(); } }); comboControl.addSelectionChangedListener(new ISelectionChangedListener() { public void selectionChanged(SelectionChangedEvent event) { buttonEdit.setEnabled(getSelectedConnection().getProfile() != null); notifyModifyListeners(); } }); combo.setLayoutData(new GridData(GridData.HORIZONTAL_ALIGN_FILL | GridData.GRAB_HORIZONTAL)); buttonNew = new Button(comp, SWT.PUSH); buttonNew.setText(HibernateConsoleMessages.ConnectionProfileCtrl_New); buttonNew.addSelectionListener(action1); buttonEdit = new Button(comp, SWT.PUSH); buttonEdit.setText(HibernateConsoleMessages.ConnectionProfileCtrl_Edit); buttonEdit.addSelectionListener(action2); updateInput(); return comp; } public void updateInput() { comboControl.setInput(getProfileNameList()); } //TODO: handle if the connection profile does not exist // Require that we make the combobox editable protected ConnectionWrapper findMatchingConnection(String name) { if (StringHelper.isEmpty(name)) { return NO_CONNECTION_PLACEHOLDER; } List<ConnectionWrapper> list = getProfileNameList(); for (Iterator<ConnectionWrapper> iterator = list.iterator(); iterator.hasNext();) { ConnectionWrapper object = iterator.next(); if (name.equals(object.getId())) { return object; } } return NO_CONNECTION_PLACEHOLDER; } public void selectValue(String name) { ConnectionWrapper connection = findMatchingConnection(name); comboControl.setSelection(new StructuredSelection(connection), true); comboControl.refresh(); notifyModifyListeners(); } /** * * @return current selected connection wrapper, will always return non-null. */ private ConnectionWrapper getSelectedConnection() { StructuredSelection selection = (StructuredSelection) comboControl.getSelection(); if (null == selection || selection.isEmpty()) { return NO_CONNECTION_PLACEHOLDER; } ConnectionWrapper cw = (ConnectionWrapper) selection.getFirstElement(); return cw; } private String getSelectedId() { ConnectionWrapper cw = getSelectedConnection(); return cw.getId(); } protected void validate() { } private List<ConnectionWrapper> getProfileNameList() { IConnectionProfile[] profiles = ProfileManager.getInstance() .getProfilesByCategory("org.eclipse.datatools.connectivity.db.category"); //$NON-NLS-1$ List<ConnectionWrapper> names = new ArrayList<ConnectionWrapper>(); if (useSynteticValues) { names.add(JPA_CONNECTION_PLACEHOLDER); names.add(NO_CONNECTION_PLACEHOLDER); } for (IConnectionProfile connectionProfile : profiles) { names.add(new ConnectionWrapper(connectionProfile.getName(), connectionProfile)); } return names; } public void setEnabled(boolean enabled) { comboControl.getControl().setEnabled(enabled); buttonNew.setEnabled(enabled); buttonEdit.setEnabled(enabled); } protected void notifyModifyListeners() { for (int i = 0; i < modifyListeners.size(); i++) { modifyListeners.get(i).modifyText(null); } } public void addModifyListener(ModifyListener listener) { modifyListeners.add(listener); } public void removeModifyListener(ModifyListener listener) { modifyListeners.remove(listener); } public String getSelectedConnectionName() { return getSelectedConnection().getId(); } public boolean hasConnectionProfileSelected() { return getSelectedConnection().getProfile() != null; } }