+++ /dev/null
-/*
- * Copyright (C) 2007-2012 Argeo GmbH
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package org.argeo.cms.ui.workbench.internal.jcr.parts;
-
-import java.util.ArrayList;
-import java.util.List;
-
-import javax.jcr.RepositoryException;
-import javax.jcr.Session;
-import javax.jcr.query.QueryResult;
-import javax.jcr.query.Row;
-import javax.jcr.query.RowIterator;
-
-import org.apache.commons.logging.Log;
-import org.apache.commons.logging.LogFactory;
-import org.argeo.eclipse.ui.EclipseUiException;
-import org.argeo.eclipse.ui.GenericTableComparator;
-import org.eclipse.core.runtime.IProgressMonitor;
-import org.eclipse.core.runtime.IStatus;
-import org.eclipse.core.runtime.Status;
-import org.eclipse.jface.dialogs.ErrorDialog;
-import org.eclipse.jface.viewers.ColumnLabelProvider;
-import org.eclipse.jface.viewers.IDoubleClickListener;
-import org.eclipse.jface.viewers.IStructuredContentProvider;
-import org.eclipse.jface.viewers.TableViewer;
-import org.eclipse.jface.viewers.TableViewerColumn;
-import org.eclipse.jface.viewers.Viewer;
-import org.eclipse.swt.SWT;
-import org.eclipse.swt.custom.SashForm;
-import org.eclipse.swt.events.SelectionAdapter;
-import org.eclipse.swt.events.SelectionEvent;
-import org.eclipse.swt.graphics.Image;
-import org.eclipse.swt.layout.FillLayout;
-import org.eclipse.swt.layout.GridData;
-import org.eclipse.swt.layout.GridLayout;
-import org.eclipse.swt.widgets.Composite;
-import org.eclipse.swt.widgets.TableColumn;
-import org.eclipse.ui.IEditorInput;
-import org.eclipse.ui.IEditorSite;
-import org.eclipse.ui.PartInitException;
-import org.eclipse.ui.part.EditorPart;
-
-/** Executes any JCR query. */
-public abstract class AbstractJcrQueryEditor extends EditorPart {
- private final static Log log = LogFactory.getLog(AbstractJcrQueryEditor.class);
-
- protected String initialQuery;
- protected String initialQueryType;
-
- /* DEPENDENCY INJECTION */
- private Session session;
-
- // Widgets
- private TableViewer viewer;
- private List<TableViewerColumn> tableViewerColumns = new ArrayList<TableViewerColumn>();
- private GenericTableComparator comparator;
-
- /** Override to layout a form enabling the end user to build his query */
- protected abstract void createQueryForm(Composite parent);
-
- @Override
- public void init(IEditorSite site, IEditorInput input) throws PartInitException {
- JcrQueryEditorInput editorInput = (JcrQueryEditorInput) input;
- initialQuery = editorInput.getQuery();
- initialQueryType = editorInput.getQueryType();
- setSite(site);
- setInput(editorInput);
- }
-
- @Override
- public final void createPartControl(final Composite parent) {
- parent.setLayout(new FillLayout());
-
- SashForm sashForm = new SashForm(parent, SWT.VERTICAL);
- sashForm.setSashWidth(4);
- sashForm.setLayout(new FillLayout());
-
- Composite top = new Composite(sashForm, SWT.NONE);
- GridLayout gl = new GridLayout(1, false);
- top.setLayout(gl);
-
- createQueryForm(top);
-
- Composite bottom = new Composite(sashForm, SWT.NONE);
- bottom.setLayout(new GridLayout(1, false));
- sashForm.setWeights(getWeights());
-
- viewer = new TableViewer(bottom);
- viewer.getTable().setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true));
- viewer.getTable().setHeaderVisible(true);
- viewer.setContentProvider(getQueryResultContentProvider());
- viewer.setInput(getEditorSite());
-
- if (getComparator() != null) {
- comparator = getComparator();
- viewer.setComparator(comparator);
- }
- if (getTableDoubleClickListener() != null)
- viewer.addDoubleClickListener(getTableDoubleClickListener());
-
- }
-
- protected void executeQuery(String statement) {
- try {
- if (log.isDebugEnabled())
- log.debug("Query : " + statement);
-
- QueryResult qr = session.getWorkspace().getQueryManager().createQuery(statement, initialQueryType)
- .execute();
-
- // remove previous columns
- for (TableViewerColumn tvc : tableViewerColumns)
- tvc.getColumn().dispose();
-
- int i = 0;
- for (final String columnName : qr.getColumnNames()) {
- TableViewerColumn tvc = new TableViewerColumn(viewer, SWT.NONE);
- configureColumn(columnName, tvc, i);
- tvc.setLabelProvider(getLabelProvider(columnName));
- tableViewerColumns.add(tvc);
- i++;
- }
-
- // Must create a local list: QueryResults can only be read once.
- try {
- List<Row> rows = new ArrayList<Row>();
- RowIterator rit = qr.getRows();
- while (rit.hasNext()) {
- rows.add(rit.nextRow());
- }
- viewer.setInput(rows);
- } catch (RepositoryException e) {
- throw new EclipseUiException("Cannot read query result", e);
- }
-
- } catch (RepositoryException e) {
- ErrorDialog.openError(null, "Error", "Cannot execute JCR query: " + statement,
- new Status(IStatus.ERROR, "org.argeo.eclipse.ui.jcr", e.getMessage()));
- }
- }
-
- /**
- * To be overidden to adapt size of form and result frames.
- *
- * @return
- */
- protected int[] getWeights() {
- return new int[] { 30, 70 };
- }
-
- /**
- * To be overidden to implement a doubleclick Listener on one of the rows of
- * the table.
- *
- * @return
- */
- protected IDoubleClickListener getTableDoubleClickListener() {
- return null;
- }
-
- /**
- * To be overiden in order to implement a specific
- * QueryResultContentProvider
- */
- protected IStructuredContentProvider getQueryResultContentProvider() {
- return new QueryResultContentProvider();
- }
-
- /**
- * Enable specific implementation for columns
- */
- protected List<TableViewerColumn> getTableViewerColumns() {
- return tableViewerColumns;
- }
-
- /**
- * Enable specific implementation for columns
- */
- protected TableViewer getTableViewer() {
- return viewer;
- }
-
- /**
- * To be overridden in order to configure column label providers .
- */
- protected ColumnLabelProvider getLabelProvider(final String columnName) {
- return new ColumnLabelProvider() {
- private static final long serialVersionUID = -3539689333250152606L;
-
- public String getText(Object element) {
- Row row = (Row) element;
- try {
- return row.getValue(columnName).getString();
- } catch (RepositoryException e) {
- throw new EclipseUiException("Cannot display row " + row, e);
- }
- }
-
- public Image getImage(Object element) {
- return null;
- }
- };
- }
-
- /**
- * To be overridden in order to configure the columns.
- *
- * @deprecated use
- * {@link AbstractJcrQueryEditor#configureColumn(String, TableViewerColumn , int )}
- * instead
- */
- protected void configureColumn(String jcrColumnName, TableViewerColumn column) {
- column.getColumn().setWidth(50);
- column.getColumn().setText(jcrColumnName);
- }
-
- /** To be overridden in order to configure the columns. */
- protected void configureColumn(String jcrColumnName, TableViewerColumn column, int columnIndex) {
- column.getColumn().setWidth(50);
- column.getColumn().setText(jcrColumnName);
- }
-
- private class QueryResultContentProvider implements IStructuredContentProvider {
- private static final long serialVersionUID = -5421095459600554741L;
-
- public void dispose() {
- }
-
- public void inputChanged(Viewer viewer, Object oldInput, Object newInput) {
- }
-
- public Object[] getElements(Object inputElement) {
-
- if (inputElement instanceof List)
- return ((List<?>) inputElement).toArray();
-
- // Never reached might be deleted in future release
- if (!(inputElement instanceof QueryResult))
- return new String[] {};
-
- try {
- QueryResult queryResult = (QueryResult) inputElement;
- List<Row> rows = new ArrayList<Row>();
- RowIterator rit = queryResult.getRows();
- while (rit.hasNext()) {
- rows.add(rit.nextRow());
- }
-
- // List<Node> elems = new ArrayList<Node>();
- // NodeIterator nit = queryResult.getNodes();
- // while (nit.hasNext()) {
- // elems.add(nit.nextNode());
- // }
- return rows.toArray();
- } catch (RepositoryException e) {
- throw new EclipseUiException("Cannot read query result", e);
- }
- }
-
- }
-
- /**
- * Might be used by children classes to sort columns.
- *
- * @param column
- * @param index
- * @return
- */
- protected SelectionAdapter getSelectionAdapter(final TableColumn column, final int index) {
-
- // A comparator must be define
- if (comparator == null)
- return null;
-
- SelectionAdapter selectionAdapter = new SelectionAdapter() {
- private static final long serialVersionUID = 239829307927778349L;
-
- @Override
- public void widgetSelected(SelectionEvent e) {
-
- try {
-
- comparator.setColumn(index);
- int dir = viewer.getTable().getSortDirection();
- if (viewer.getTable().getSortColumn() == column) {
- dir = dir == SWT.UP ? SWT.DOWN : SWT.UP;
- } else {
-
- dir = SWT.DOWN;
- }
- viewer.getTable().setSortDirection(dir);
- viewer.getTable().setSortColumn(column);
- viewer.refresh();
- } catch (Exception exc) {
- exc.printStackTrace();
- }
- }
- };
- return selectionAdapter;
- }
-
- /**
- * To be overridden to enable sorting.
- */
- protected GenericTableComparator getComparator() {
- return null;
- }
-
- @Override
- public boolean isDirty() {
- return false;
- }
-
- @Override
- public void doSave(IProgressMonitor monitor) {
- // TODO save the query in JCR?
- }
-
- @Override
- public void doSaveAs() {
- }
-
- @Override
- public boolean isSaveAsAllowed() {
- return false;
- }
-
- /** Returns the injected current session */
- protected Session getSession() {
- return session;
- }
-
- /* DEPENDENCY INJECTION */
- public void setSession(Session session) {
- this.session = session;
- }
-}
projects / lgpl / argeo-commons.git / blobdiff