Java tutorial
/* * Copyright (c) 2004-2011 Marco Maccaferri 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: * Marco Maccaferri - initial API and implementation */ package org.eclipsetrader.directa.internal.ui.wizards; import java.net.URI; import java.net.URISyntaxException; import java.text.SimpleDateFormat; import java.util.ArrayList; import java.util.Calendar; import java.util.Collections; import java.util.Comparator; import java.util.Date; import java.util.List; import org.eclipse.core.runtime.IAdaptable; import org.eclipse.jface.dialogs.IDialogSettings; import org.eclipse.jface.viewers.ArrayContentProvider; import org.eclipse.jface.viewers.CheckStateChangedEvent; import org.eclipse.jface.viewers.CheckboxTableViewer; import org.eclipse.jface.viewers.ICheckStateListener; import org.eclipse.jface.viewers.LabelProvider; import org.eclipse.jface.viewers.ViewerSorter; import org.eclipse.jface.wizard.WizardPage; import org.eclipse.nebula.widgets.cdatetime.CDT; import org.eclipse.nebula.widgets.cdatetime.CDateTime; import org.eclipse.osgi.util.NLS; import org.eclipse.swt.SWT; import org.eclipse.swt.events.SelectionAdapter; import org.eclipse.swt.events.SelectionEvent; import org.eclipse.swt.layout.GridData; import org.eclipse.swt.layout.GridLayout; import org.eclipse.swt.widgets.Combo; import org.eclipse.swt.widgets.Composite; import org.eclipse.swt.widgets.Label; import org.eclipsetrader.core.feed.TimeSpan; import org.eclipsetrader.core.feed.TimeSpan.Units; import org.eclipsetrader.core.instruments.ISecurity; import org.eclipsetrader.core.repositories.IRepositoryService; import org.eclipsetrader.core.repositories.IStoreObject; import org.eclipsetrader.directa.internal.Activator; import org.eclipsetrader.ui.Util; import org.eclipsetrader.ui.internal.UIActivator; import org.osgi.framework.BundleContext; import org.osgi.framework.ServiceReference; public class ImportDataPage extends WizardPage { private static final String K_SELECTION = "SELECTION"; //$NON-NLS-1$ private static final String K_SECURITIES = "SECURITIES"; //$NON-NLS-1$ private static final String K_MODE = "MODE"; //$NON-NLS-1$ private static final String K_FROM_DATE = "FROM_DATE"; //$NON-NLS-1$ private static final String K_AGGREGATION = "AGGREGATION"; //$NON-NLS-1$ private Combo type; private CDateTime from; private CDateTime to; private CheckboxTableViewer aggregation; private Combo combo; private CheckboxTableViewer members; public ImportDataPage() { super("data", Messages.ImportDataPage_Title, null); //$NON-NLS-1$ setDescription(Messages.ImportDataPage_Description); } /* (non-Javadoc) * @see org.eclipse.jface.dialogs.IDialogPage#createControl(org.eclipse.swt.widgets.Composite) */ @Override public void createControl(Composite parent) { Composite content = new Composite(parent, SWT.NONE); GridLayout gridLayout = new GridLayout(2, false); gridLayout.marginWidth = gridLayout.marginHeight = 0; content.setLayout(gridLayout); setControl(content); initializeDialogUnits(parent); Label label = new Label(content, SWT.NONE); label.setText(Messages.ImportDataPage_Type); type = new Combo(content, SWT.DROP_DOWN | SWT.READ_ONLY); type.setLayoutData(new GridData(SWT.FILL, SWT.CENTER, true, false)); type.add(Messages.ImportDataPage_Full); type.add(Messages.ImportDataPage_Incremental); type.add(Messages.ImportDataPage_FullIncremental); type.select(1); type.addSelectionListener(new SelectionAdapter() { @Override public void widgetSelected(SelectionEvent e) { int typeIndex = type.getSelectionIndex(); from.setEnabled(typeIndex == 0 || typeIndex == 2); to.setEnabled(typeIndex == 0); if (typeIndex != 0) { to.setSelection(Calendar.getInstance().getTime()); } setPageComplete(isPageComplete()); } }); label = new Label(content, SWT.NONE); label.setText(Messages.ImportDataPage_Period); Composite group = new Composite(content, SWT.NONE); gridLayout = new GridLayout(3, false); gridLayout.marginWidth = gridLayout.marginHeight = 0; gridLayout.verticalSpacing = 0; group.setLayout(gridLayout); from = new CDateTime(group, CDT.BORDER | CDT.DATE_SHORT | CDT.DROP_DOWN | CDT.TAB_FIELDS); from.setPattern(Util.getDateFormatPattern()); label = new Label(group, SWT.NONE); label.setText(Messages.ImportDataPage_To); to = new CDateTime(group, CDT.BORDER | CDT.DATE_SHORT | CDT.DROP_DOWN | CDT.TAB_FIELDS); to.setPattern(Util.getDateFormatPattern()); Calendar today = Calendar.getInstance(); to.setSelection(today.getTime()); today.add(Calendar.YEAR, -10); from.setSelection(today.getTime()); label = new Label(content, SWT.NONE); label.setText(Messages.ImportDataPage_Aggregation); label.setLayoutData(new GridData(SWT.TOP, SWT.RIGHT, false, false)); ((GridData) label.getLayoutData()).verticalIndent = convertVerticalDLUsToPixels(2); aggregation = CheckboxTableViewer.newCheckList(content, SWT.BORDER); aggregation.getControl().setLayoutData(new GridData(SWT.FILL, SWT.CENTER, true, false)); ((GridData) aggregation.getControl().getLayoutData()).heightHint = aggregation.getTable().getItemHeight() * 3; aggregation.setContentProvider(new ArrayContentProvider()); aggregation.setLabelProvider(new LabelProvider() { @Override public String getText(Object element) { TimeSpan timeSpan = (TimeSpan) element; return NLS.bind("{0} {1}", new Object[] { //$NON-NLS-1$ String.valueOf(timeSpan.getLength()), timeSpan.getUnits() == Units.Minutes ? Messages.ImportDataPage_Minutes : Messages.ImportDataPage_Days, }); } }); TimeSpan[] availableSizes = getAvailableAggregations(); aggregation.setInput(availableSizes); aggregation.setChecked(availableSizes[0], true); label = new Label(content, SWT.NONE); label.setText(Messages.ImportDataPage_Import); combo = new Combo(content, SWT.DROP_DOWN | SWT.READ_ONLY); combo.setLayoutData(new GridData(SWT.FILL, SWT.CENTER, true, false)); combo.add(Messages.ImportDataPage_AllSecurities); combo.add(Messages.ImportDataPage_SecuritiesSelectedBelow); combo.select(0); combo.addSelectionListener(new SelectionAdapter() { @Override public void widgetSelected(SelectionEvent e) { members.getControl().setEnabled(combo.getSelectionIndex() != 0); setPageComplete(isPageComplete()); } }); members = CheckboxTableViewer.newCheckList(content, SWT.SINGLE | SWT.BORDER | SWT.V_SCROLL | SWT.H_SCROLL); members.getControl().setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true, 2, 1)); ((GridData) members.getControl().getLayoutData()).heightHint = members.getTable().getItemHeight() * 10 + members.getTable().getBorderWidth() * 2; ((GridData) members.getControl().getLayoutData()).verticalIndent = 5; members.setLabelProvider(new LabelProvider() { @Override public String getText(Object element) { return ((ISecurity) element).getName(); } }); members.setContentProvider(new ArrayContentProvider()); members.setSorter(new ViewerSorter()); members.setInput(getRepositoryService().getSecurities()); restoreState(); int typeIndex = type.getSelectionIndex(); from.setEnabled(typeIndex == 0 || typeIndex == 2); to.setEnabled(typeIndex == 0); members.getControl().setEnabled(combo.getSelectionIndex() != 0); aggregation.addCheckStateListener(new ICheckStateListener() { @Override public void checkStateChanged(CheckStateChangedEvent event) { setPageComplete(isPageComplete()); } }); members.addCheckStateListener(new ICheckStateListener() { @Override public void checkStateChanged(CheckStateChangedEvent event) { setPageComplete(isPageComplete()); } }); } protected void restoreState() { IDialogSettings dialogSettings = Activator.getDefault().getDialogSettings() .getSection(getClass().getName()); if (dialogSettings != null) { if (dialogSettings.get(K_MODE) != null) { type.select(dialogSettings.getInt(K_MODE)); } if (dialogSettings.get(K_FROM_DATE) != null) { try { from.setSelection(new SimpleDateFormat("yyyyMMdd").parse(dialogSettings.get(K_FROM_DATE))); //$NON-NLS-1$ } catch (Exception e) { // Do nothing } } String[] s = dialogSettings.getArray(K_AGGREGATION); if (s != null) { aggregation.setAllChecked(false); TimeSpan[] ts = new TimeSpan[s.length]; for (int i = 0; i < ts.length; i++) { ts[i] = TimeSpan.fromString(s[i]); } aggregation.setCheckedElements(ts); } if (dialogSettings.get(K_SECURITIES) != null) { combo.select(dialogSettings.getInt(K_SECURITIES)); } String[] selection = dialogSettings.getArray(K_SELECTION); if (selection != null) { IRepositoryService repository = getRepositoryService(); for (int i = 0; i < selection.length; i++) { try { ISecurity security = repository.getSecurityFromURI(new URI(selection[i])); if (security != null) { members.setChecked(security, true); } } catch (URISyntaxException e) { // Ignore URI exception, not really important here } } } } } public void saveState() { IDialogSettings dialogSettings = Activator.getDefault().getDialogSettings() .getSection(getClass().getName()); if (dialogSettings == null) { dialogSettings = Activator.getDefault().getDialogSettings().addNewSection(getClass().getName()); } dialogSettings.put(K_MODE, type.getSelectionIndex()); dialogSettings.put(K_FROM_DATE, new SimpleDateFormat("yyyyMMdd").format(from.getSelection())); //$NON-NLS-1$ TimeSpan[] ts = getAggregation(); String[] s = new String[ts.length]; for (int i = 0; i < s.length; i++) { s[i] = ts[i].toString(); } dialogSettings.put(K_AGGREGATION, s); dialogSettings.put(K_SECURITIES, combo.getSelectionIndex()); Object[] o = members.getCheckedElements(); String[] selection = new String[o.length]; for (int i = 0; i < o.length; i++) { IStoreObject storeObject = (IStoreObject) ((IAdaptable) o[i]).getAdapter(IStoreObject.class); selection[i] = storeObject.getStore().toURI().toString(); } dialogSettings.put(K_SELECTION, selection); } protected IRepositoryService getRepositoryService() { IRepositoryService service = null; BundleContext context = Activator.getDefault().getBundle().getBundleContext(); ServiceReference serviceReference = context.getServiceReference(IRepositoryService.class.getName()); if (serviceReference != null) { service = (IRepositoryService) context.getService(serviceReference); context.ungetService(serviceReference); } return service; } /* (non-Javadoc) * @see org.eclipse.jface.wizard.WizardPage#isPageComplete() */ @Override public boolean isPageComplete() { if (aggregation.getCheckedElements().length == 0) { return false; } if (from.getEnabled() && from.getSelection() == null) { return false; } if (to.getEnabled() && to.getSelection() == null) { return false; } if (combo.getSelectionIndex() == 0) { return true; } return members.getCheckedElements().length != 0; } public ISecurity[] getCheckedSecurities() { Object[] o = combo.getSelectionIndex() == 0 ? (Object[]) members.getInput() : members.getCheckedElements(); ISecurity[] securities = new ISecurity[o.length]; System.arraycopy(o, 0, securities, 0, securities.length); return securities; } public TimeSpan[] getAggregation() { Object[] ar = aggregation.getCheckedElements(); TimeSpan[] r = new TimeSpan[ar.length]; System.arraycopy(ar, 0, r, 0, r.length); return r; } public Date getFromDate() { return from.getSelection(); } public Date getToDate() { return to.getSelection(); } public int getImportType() { switch (type.getSelectionIndex()) { case 0: return DataImportJob.FULL; case 1: return DataImportJob.INCREMENTAL; case 2: return DataImportJob.FULL_INCREMENTAL; } return DataImportJob.FULL; } protected TimeSpan[] getAvailableAggregations() { List<TimeSpan> list = new ArrayList<TimeSpan>(); String value = UIActivator.getDefault().getPreferenceStore().getString(UIActivator.PREFS_CHART_BARS); String[] s = value.split(","); for (int i = 0; i < s.length; i++) { TimeSpan timeSpan = TimeSpan.fromString(s[i]); if (timeSpan != null) { list.add(timeSpan); } } Collections.sort(list, new Comparator<TimeSpan>() { @Override public int compare(TimeSpan o1, TimeSpan o2) { if (o1.getUnits() != o2.getUnits()) { return o2.getUnits().ordinal() - o1.getUnits().ordinal(); } return o1.getLength() - o2.getLength(); } }); return list.toArray(new TimeSpan[list.size()]); } }