public class LanguageObjectBuilderTreeViewer extends TreeViewer
implements ILanguageObjectInputProvider, UiConstants {
private static final String PREFIX =
I18nUtil.getPropertyPrefix(LanguageObjectBuilderTreeViewer.class);
LanguageObjectContentProvider contentProvider;
private LanguageObject langObj;
public LanguageObjectBuilderTreeViewer(Composite theParent) {
super(theParent, SWT.NONE);
contentProvider = new LanguageObjectContentProvider();
setContentProvider(contentProvider);
setLabelProvider(new LanguageObjectLabelProvider());
getTree().setLayoutData(new GridData(GridData.FILL_BOTH));
}
public void addUndefinedAndCriteria() {
addUndefinedCriteria((Criteria) getSelectedObject(), true);
}
private void addUndefinedCriteria(Criteria theCriteria, boolean theAndFlag) {
CoreArgCheck.isNotNull(theCriteria); // should not be calling if null
Object newSelection = StructuredSelection.EMPTY;
if (theCriteria instanceof CompoundCriteria) {
CompoundCriteria criteria = (CompoundCriteria) theCriteria;
criteria.addCriteria((Criteria) null);
refresh(true);
newSelection = contentProvider.getChildAt((criteria.getCriteriaCount() - 1), criteria);
} else if (theCriteria instanceof NotCriteria) {
// the contained Criteria must be a CompoundCriteria
addUndefinedCriteria(((NotCriteria) theCriteria).getCriteria(), theAndFlag);
} else if (theCriteria instanceof PredicateCriteria) {
CompoundCriteria compoundCriteria = new CompoundCriteria();
compoundCriteria.setOperator((theAndFlag) ? CompoundCriteria.AND : CompoundCriteria.OR);
compoundCriteria.addCriteria(theCriteria);
compoundCriteria.addCriteria((Criteria) null);
// modify parent here
LanguageObject parent = (LanguageObject) contentProvider.getParent(theCriteria);
int index = contentProvider.getChildIndex(theCriteria);
if (parent == null) {
setLanguageObject(compoundCriteria);
refresh(true);
// select undefined criteria
newSelection = contentProvider.getChildAt(1, contentProvider.getRoot());
expandToLevel(newSelection, ALL_LEVELS);
} else if ((parent instanceof NotCriteria) || (parent instanceof CompoundCriteria)) {
CompoundCriteria criteria = null;
if (parent instanceof NotCriteria) {
// then NotCriteria's contained criteria must be a CompoundCriteria
criteria = (CompoundCriteria) ((NotCriteria) theCriteria).getCriteria();
} else {
criteria = (CompoundCriteria) parent;
}
List crits = criteria.getCriteria();
crits.set(index, compoundCriteria);
refresh(true);
// select undefined criteria
newSelection = contentProvider.getChildAt(1, compoundCriteria);
} else {
CoreArgCheck.isTrue(
false,
Util.getString(
PREFIX + "unexpectedType", // $NON-NLS-1$
new Object[] {"addUndefinedCriteria", parent.getClass()})); // $NON-NLS-1$
}
}
// select appropriate tree item
final Object selection = newSelection;
Display.getDefault()
.asyncExec(
new Runnable() {
public void run() {
setSelection(new StructuredSelection(selection));
}
});
}
public void addUndefinedOrCriteria() {
addUndefinedCriteria((Criteria) getSelectedObject(), false);
}
private boolean canDelete(Object theLangObj) {
boolean result = true;
LanguageObject parent = (LanguageObject) contentProvider.getParent(theLangObj);
if (parent == null) {
// object is root. can only delete if not undefined
result = !isUndefined(theLangObj);
} else if (parent instanceof Function) {
// all function arguments except converstion type constants can be deleted
if (theLangObj instanceof Constant) {
result = !BuilderUtils.isConversionType((Constant) theLangObj);
}
} else if (parent instanceof NotCriteria) {
// get compound criteria and ask again
NotCriteria notCrit = (NotCriteria) parent;
Criteria criteria = notCrit.getCriteria();
// NotCriteria must contain either another NotCriteria or a CompoundCriteria
while (!(criteria instanceof CompoundCriteria)) {
// must be a NotCriteria
criteria = ((NotCriteria) criteria).getCriteria();
result = canDelete(criteria);
}
}
return result;
}
public boolean canDeleteSelection() {
return canDelete(getSelectedObject());
}
private void delete(Object theLangObj) {
if (canDelete(theLangObj)) {
boolean doSelect = true;
//
// set the parent object to reflect the change in it's child. parent can't be undefined.
//
Object newSelection = StructuredSelection.EMPTY;
LanguageObject parent = (LanguageObject) contentProvider.getParent(theLangObj);
if (parent == null) {
// object being delete is root language object
setLanguageObject(null); // resets undefined count
refresh(true);
newSelection = contentProvider.getRoot();
expandToLevel(newSelection, ALL_LEVELS);
} else if (parent instanceof Function) {
// set the arg to null in parent
int index = contentProvider.getChildIndex(theLangObj);
Expression[] args = ((Function) parent).getArgs();
args[index] = null;
refresh(true);
newSelection = contentProvider.getChildAt(index, parent);
} else if (parent instanceof Criteria) {
if (contentProvider.getChildCount(parent) > 1) {
CompoundCriteria compoundCriteria = null;
// parent is either a compound criteria or not criteria
if (parent instanceof CompoundCriteria) {
compoundCriteria = (CompoundCriteria) parent;
} else { // NotCriteria
NotCriteria notCrit = (NotCriteria) parent;
Criteria criteria = notCrit.getCriteria();
// NotCriteria must contain either another NotCriteria or a CompoundCriteria
while (!(criteria instanceof CompoundCriteria)) {
// must be a NotCriteria
criteria = ((NotCriteria) criteria).getCriteria();
}
compoundCriteria = (CompoundCriteria) criteria;
}
List crits = compoundCriteria.getCriteria();
int index = contentProvider.getChildIndex(theLangObj);
// CompoundCriteria has to have at least 2 criteria to be compound. if it has more than 2
// just delete the selected obj. if there are exactly 2 criteria than this special
// processing block occurs.
if (contentProvider.getChildCount(parent) == 2) {
int siblingIndex = (index == 0) ? 1 : 0;
// if deleting this node would leave just an undefined node under the parent, delete
// parent
if (isUndefined(contentProvider.getChildAt(siblingIndex, parent))) {
delete(parent);
} else {
// sibling is not undefined
// if deleting an undefined node, delete from parent. this will leave one node
// under the parent.
if (isUndefined(theLangObj)) {
crits.remove(index);
// selection taken care of below in block checking for size of 1
} else {
// replace deleted node with undefined node
crits.set(index, (Criteria) null);
refresh(true);
newSelection = contentProvider.getChildAt(index, parent);
}
}
} else {
// just remove from parent
crits.remove(index);
refresh(true);
newSelection = parent;
}
if (crits.size() == 1) {
// need to modify parent node with the child (refresh done there)
modifyLanguageObject(
parent, (LanguageObject) contentProvider.getChildAt(0, parent), false);
doSelect = false; // modify does select
}
}
}
if (doSelect) {
final Object selection = newSelection;
Display.getDefault()
.asyncExec(
new Runnable() {
public void run() {
setSelection(new StructuredSelection(selection));
}
});
}
}
}
public void deleteSelection() {
delete(getSelectedObject());
}
/**
* @see
* com.metamatrix.modeler.transformation.ui.builder.ILanguageObjectInputProvider#getLanguageObject()
*/
public LanguageObject getLanguageObject() {
return langObj;
}
// returns null if no selection
// if there is a selection it will either by a LanguageObject or BuilderUtils.UNDEFINED
public Object getSelectedObject() {
Object result = null;
IStructuredSelection selection = (IStructuredSelection) getSelection();
if (selection.size() == 1) {
result = selection.getFirstElement();
}
return result;
}
/**
* Indicates if the given object has undefined children.
*
* @param theLangObj the object being queried
* @return <code>true</code> if undefined child exist; <code>false</code> otherwise.
*/
public boolean hasUndefinedChild(Object theLangObj) {
boolean result = false;
Object[] kids = contentProvider.getChildren(theLangObj);
if (kids.length > 0) {
// go in reverse order since it is more likely undefined will be at the end
for (int i = (kids.length - 1); i >= 0; i--) {
if (isUndefined(kids[i])) {
result = true;
} else {
result = hasUndefinedChild(kids[i]);
}
if (result) {
break;
}
}
}
return result;
}
public boolean isComplete() {
Object root = contentProvider.getRoot();
boolean result = ((root == null) || (isUndefined(root))) ? false : !hasUndefinedChild(root);
return result;
}
public boolean isUndefined(Object theLangObj) {
return ((theLangObj == null) || theLangObj.equals(BuilderUtils.UNDEFINED));
}
private void modifyLanguageObject(
Object theObject, LanguageObject theNewValue, boolean retainSelection) {
CoreArgCheck.isNotNull(theNewValue); // should not be null when modifying
//
// set the parent object to reflect the change in it's child. parent's can't be undefined
//
Object newSelection = StructuredSelection.EMPTY;
LanguageObject parent = (LanguageObject) contentProvider.getParent(theObject);
Object newValue = theNewValue;
if (parent == null) {
// root language object
setLanguageObject((LanguageObject) newValue);
refresh(true);
newSelection = contentProvider.getRoot();
expandToLevel(newSelection, ALL_LEVELS);
if (newSelection instanceof Function) {
Function function = (Function) newSelection;
if (function.getArgs().length > 0) {
newSelection = contentProvider.getChildAt(0, function);
}
}
} else if (parent instanceof Function) {
// set the arg to new value in parent
int index = contentProvider.getChildIndex(theObject);
Expression[] args = ((Function) parent).getArgs();
args[index] = (Expression) newValue;
refresh(true);
expandToLevel(parent, ALL_LEVELS);
newSelection = contentProvider.getChildAt(index, parent);
if (!retainSelection) {
if (newSelection instanceof Function) {
// if function arg change to be a function, select first function arg
if (contentProvider.getChildCount(newSelection) > 0) {
newSelection = contentProvider.getChildAt(0, newSelection);
}
} else {
// select next sibling function arg if exists
if ((args.length - 1) > index) {
newSelection = contentProvider.getChildAt(index + 1, parent);
} else if (index > 0) {
newSelection = contentProvider.getChildAt(0, parent);
} else {
newSelection = contentProvider.getChildAt(index, parent);
}
}
}
} else if (parent instanceof Criteria) {
// theLangObj must also be a Criteria
// since NotCriteria aren't really edited in the editor (their contained criteria is). Need to
// save the state in order to restore it when modifying
Criteria newCriteria = (Criteria) newValue;
int index = contentProvider.getChildIndex(theObject);
if ((parent instanceof CompoundCriteria) || (parent instanceof NotCriteria)) {
CompoundCriteria compoundCriteria = null;
if (parent instanceof CompoundCriteria) {
compoundCriteria = (CompoundCriteria) parent;
} else {
compoundCriteria = (CompoundCriteria) ((NotCriteria) parent).getCriteria();
}
List criteriaCollection = compoundCriteria.getCriteria();
criteriaCollection.set(index, newCriteria);
refresh(true);
if (retainSelection) {
newSelection = criteriaCollection.get(index);
} else {
// set selection to next sibling criteria or to the first sibling
if ((criteriaCollection.size() - 1) > index) {
newSelection = criteriaCollection.get(index + 1);
} else if (index > 0) {
newSelection = criteriaCollection.get(0);
} else {
newSelection = contentProvider.getChildAt(index + 1, parent);
}
}
} else {
CoreArgCheck.isTrue(
false,
Util.getString(
PREFIX + "unexpectedType", // $NON-NLS-1$
new Object[] {
"modifyLanguageObject", //$NON-NLS-1$
parent.getClass().getName()
}));
}
expandToLevel(parent, ALL_LEVELS);
}
// select next node
setSelection(
(newSelection == null) ? StructuredSelection.EMPTY : new StructuredSelection(newSelection));
}
public void modifyNotCriteriaStatus() {
Object selectedObj = getSelectedObject();
CoreArgCheck.isNotNull(selectedObj); // should not be calling if no row selected
if (selectedObj instanceof NotCriteria) {
modifySelectedItem(((NotCriteria) selectedObj).getCriteria(), true);
} else if (selectedObj instanceof Criteria) {
modifySelectedItem(new NotCriteria((Criteria) selectedObj), true);
} else if (isUndefined(selectedObj)) {
CoreArgCheck.isTrue(
false,
Util.getString(
PREFIX + "unexpectedType", // $NON-NLS-1$
new Object[] {"modifyNotCriteriaStatus", BuilderUtils.UNDEFINED})); // $NON-NLS-1$
} else {
CoreArgCheck.isTrue(
false,
Util.getString(
PREFIX + "unexpectedType", // $NON-NLS-1$
new Object[] {"modifyNotCriteriaStatus", selectedObj.getClass()})); // $NON-NLS-1$
}
}
public void modifySelectedItem(LanguageObject theLangObj, boolean retainSelection) {
modifyLanguageObject(getSelectedObject(), theLangObj, retainSelection);
}
public void selectRoot() {
// put this in the back of the UI thread event queue.
// at startup the listeners we're working. this makes sure the listeners have all been wired.
Display.getDefault()
.asyncExec(
new Runnable() {
public void run() {
setSelection(new StructuredSelection(contentProvider.getRoot()));
}
});
}
public void setLanguageObject(LanguageObject theLangObj) {
langObj = theLangObj;
setInput(this);
}
}
/** AbstractLanguageObjectBuilder */
public abstract class AbstractLanguageObjectBuilder extends Dialog implements UiConstants {
// /////////////////////////////////////////////////////////////////////////////////////////////
// CONSTANTS
// /////////////////////////////////////////////////////////////////////////////////////////////
private static final String PREFIX =
I18nUtil.getPropertyPrefix(AbstractLanguageObjectBuilder.class);
// /////////////////////////////////////////////////////////////////////////////////////////////
// FIELDS
// /////////////////////////////////////////////////////////////////////////////////////////////
private IAction deleteAction;
private ILanguageObjectEditor editor;
private LanguageObject savedSelection;
protected LanguageObject savedLangObj;
// /////////////////////////////////////////////////////////////////////////////////////////////
// CONTROLS
// /////////////////////////////////////////////////////////////////////////////////////////////
protected Button btnSet;
protected Button btnReset;
private Label lblTitle;
private Composite pnlEditor;
private Composite pnlEditorDetail;
LanguageObjectBuilderTreeViewer treeViewer;
private SqlDisplayPanel currentSql;
private SqlDisplayPanel originalSql;
private CLabel originalLanguageObjLabel;
// /////////////////////////////////////////////////////////////////////////////////////////////
// CONSTRUCTORS
// /////////////////////////////////////////////////////////////////////////////////////////////
protected AbstractLanguageObjectBuilder(Shell theParent, String theTitle) {
super(theParent, theTitle);
}
// /////////////////////////////////////////////////////////////////////////////////////////////
// METHODS
// /////////////////////////////////////////////////////////////////////////////////////////////
@Override
public void create() {
super.create();
editor = createEditor(pnlEditorDetail);
editor
.getModel()
.addModelListener(
new ILanguageObjectEditorModelListener() {
public void modelChanged(LanguageObjectEditorModelEvent theEvent) {
handleModelChanged();
}
});
lblTitle.setText(editor.getTitle());
Composite pnlEditorButtons = new Composite(pnlEditor, SWT.NONE);
pnlEditorButtons.setLayoutData(new GridData(GridData.VERTICAL_ALIGN_CENTER));
pnlEditorButtons.setLayout(new GridLayout());
//
// pnlEditorButtons contents
//
btnSet = new Button(pnlEditorButtons, SWT.NONE);
btnSet.setEnabled(false);
btnSet.setText(Util.getString(PREFIX + "btnSet")); // $NON-NLS-1$
btnSet.setToolTipText(Util.getString(PREFIX + "btnSet.tip")); // $NON-NLS-1$
btnSet.addSelectionListener(
new SelectionAdapter() {
@Override
public void widgetSelected(SelectionEvent theEvent) {
handleSetSelected();
}
});
btnReset = new Button(pnlEditorButtons, SWT.NONE);
btnReset.setEnabled(false);
btnReset.setText(Util.getString(PREFIX + "btnReset")); // $NON-NLS-1$
btnReset.setToolTipText(Util.getString(PREFIX + "btnReset.tip")); // $NON-NLS-1$
btnReset.addSelectionListener(
new SelectionAdapter() {
@Override
public void widgetSelected(SelectionEvent theEvent) {
handleResetSelected();
}
});
setLanguageObject(null); // needed to establish the viewer input
// select root tree node after all construction is finished
Display.getDefault()
.asyncExec(
new Runnable() {
public void run() {
treeViewer.selectRoot();
}
});
}
/* (non-Javadoc)
* @see org.eclipse.jface.dialogs.Dialog#createDialogArea(org.eclipse.swt.widgets.Composite)
*/
@Override
protected Control createDialogArea(Composite theParent) {
originalLanguageObjLabel =
WidgetFactory.createLabel(theParent, CoreStringUtil.Constants.EMPTY_STRING);
Composite pnlContents = (Composite) super.createDialogArea(theParent);
//
// main panel contents
//
CTabFolder tabFolder = WidgetFactory.createTabFolder(pnlContents);
//
// tabFolder contents - 2 tabs (Tree, SQL Text), each with a splitter
//
CTabItem treeTab =
WidgetFactory.createTab(tabFolder, Util.getString(PREFIX + "treeTab")); // $NON-NLS-1$
treeTab.setToolTipText(Util.getString(PREFIX + "treeTab.tip")); // $NON-NLS-1$
SashForm treeTabSash = new SashForm(tabFolder, SWT.VERTICAL);
treeTabSash.setLayoutData(new GridData(GridData.FILL_BOTH));
treeTab.setControl(treeTabSash);
CTabItem sqlTab =
WidgetFactory.createTab(tabFolder, Util.getString(PREFIX + "sqlTab")); // $NON-NLS-1$
sqlTab.setToolTipText(Util.getString(PREFIX + "sqlTab.tip")); // $NON-NLS-1$
SashForm sqlTabSash = new SashForm(tabFolder, SWT.VERTICAL);
sqlTabSash.setLayoutData(new GridData(GridData.FILL_BOTH));
sqlTab.setControl(sqlTabSash);
//
// treeTab contents
//
ViewForm formTree = new ViewForm(treeTabSash, SWT.BORDER);
Composite pnlTree = new Composite(formTree, SWT.NO_TRIM);
formTree.setContent(pnlTree);
GridLayout layout = new GridLayout();
layout.marginWidth = 0;
layout.marginHeight = 0;
pnlTree.setLayout(layout);
pnlTree.setLayoutData(new GridData(GridData.FILL_BOTH));
ViewForm formEditor = new ViewForm(treeTabSash, SWT.BORDER);
pnlEditor = new Composite(formEditor, SWT.NO_TRIM);
formEditor.setContent(pnlEditor);
pnlEditor.setLayoutData(new GridData(GridData.FILL_BOTH));
lblTitle = new Label(formEditor, SWT.CENTER);
lblTitle.setBackground(BuilderUtils.COLOR_HIGHLIGHT);
formEditor.setTopLeft(lblTitle);
treeTabSash.setWeights(new int[] {30, 70});
//
// sqlTab contents
//
ViewForm formCurrentSql = new ViewForm(sqlTabSash, SWT.BORDER);
ViewForm formOriginalSql = new ViewForm(sqlTabSash, SWT.BORDER);
//
// formCurrentSql contents
//
Composite pnlCurrentSql = new Composite(formCurrentSql, SWT.NONE);
formCurrentSql.setContent(pnlCurrentSql);
pnlCurrentSql.setLayout(new GridLayout());
pnlCurrentSql.setLayoutData(new GridData(GridData.FILL_BOTH));
currentSql = new SqlDisplayPanel(pnlCurrentSql);
currentSql.setLayoutData(new GridData(GridData.FILL_BOTH));
CLabel lblCurrent = new CLabel(formCurrentSql, SWT.NONE);
lblCurrent.setBackground(BuilderUtils.COLOR_HIGHLIGHT);
lblCurrent.setText(Util.getString(PREFIX + "lblCurrent")); // $NON-NLS-1$
lblCurrent.setToolTipText(Util.getString(PREFIX + "lblCurrent.tip")); // $NON-NLS-1$
formCurrentSql.setTopLeft(lblCurrent);
//
// formOriginalSql contents
//
Composite pnlOriginalSql = new Composite(formOriginalSql, SWT.NONE);
formOriginalSql.setContent(pnlOriginalSql);
pnlOriginalSql.setLayout(new GridLayout());
pnlOriginalSql.setLayoutData(new GridData(GridData.FILL_BOTH));
originalSql = new SqlDisplayPanel(pnlOriginalSql);
originalSql.setLayoutData(new GridData(GridData.FILL_BOTH));
CLabel lblOriginal = new CLabel(formOriginalSql, SWT.NONE);
lblOriginal.setBackground(BuilderUtils.COLOR_HIGHLIGHT);
lblOriginal.setText(Util.getString(PREFIX + "lblOriginal")); // $NON-NLS-1$
lblOriginal.setToolTipText(Util.getString(PREFIX + "lblOriginal.tip")); // $NON-NLS-1$
formOriginalSql.setTopLeft(lblOriginal);
//
// pnlTree contents - 2 columns (tree viewer, button panel)
//
layout = new GridLayout();
layout.numColumns = 2;
layout.marginHeight = 0;
layout.marginWidth = 0;
pnlTree.setLayout(layout);
treeViewer = new LanguageObjectBuilderTreeViewer(pnlTree);
treeViewer.addSelectionChangedListener(
new ISelectionChangedListener() {
public void selectionChanged(SelectionChangedEvent theEvent) {
handleTreeSelection();
}
});
MenuManager menuMgr = new MenuManager();
menuMgr.setRemoveAllWhenShown(true);
menuMgr.addMenuListener(
new IMenuListener() {
public void menuAboutToShow(IMenuManager theMenuMgr) {
fillContextMenu(theMenuMgr);
}
});
treeViewer.getTree().setMenu(menuMgr.createContextMenu(treeViewer.getTree()));
Composite pnlButtons = new Composite(pnlTree, SWT.NONE);
pnlButtons.setLayout(new GridLayout());
createTreeButtons(pnlButtons);
//
// pnlEditor contents
//
layout = new GridLayout();
layout.numColumns = 2;
pnlEditor.setLayout(layout);
pnlEditorDetail = new Composite(pnlEditor, SWT.NONE);
pnlEditorDetail.setLayoutData(new GridData(GridData.FILL_BOTH));
pnlEditorDetail.setLayout(new GridLayout());
return pnlContents;
}
protected abstract ILanguageObjectEditor createEditor(Composite theParent);
/**
* Creates buttons that interact with the tree.
*
* @param theParent the panel where the buttons are contained
*/
protected void createTreeButtons(Composite theParent) {
Runnable deleteRunner =
new Runnable() {
public void run() {
handleDeleteSelected();
}
};
deleteAction = new DeleteViewerObjectAction(theParent, deleteRunner);
}
protected void fillContextMenu(IMenuManager theMenuMgr) {
theMenuMgr.add(deleteAction);
}
public ILanguageObjectEditor getEditor() {
return editor;
}
/* (non-Javadoc)
* @see com.metamatrix.query.internal.ui.builder.ILanguageObjectInputProvider#getLanguageObject()
*/
public LanguageObject getLanguageObject() {
return treeViewer.getLanguageObject();
}
/**
* Gets the saved <code>LanguageObject</code>.
*
* @return the saved <code>LanguageObject</code> or <code>null</code>
*/
protected LanguageObject getSavedLanguageObject() {
return savedLangObj;
}
/**
* Gets a title for the builder. Title is appropriate for use as a dialog title.
*
* @return the builder title
*/
@Override
public abstract String getTitle();
protected LanguageObjectBuilderTreeViewer getTreeViewer() {
return treeViewer;
}
protected void handleDeleteSelected() {
editor.clear();
treeViewer.deleteSelection();
// update SQL text
setCurrentSql(treeViewer.getLanguageObject());
editor.acceptFocus();
}
void handleModelChanged() {
boolean isEnabled = false;
boolean isComplete = false;
boolean hasChanged = false;
isEnabled = editor.isEnabled();
if (isEnabled) {
isComplete = editor.isComplete();
}
if (isComplete) {
hasChanged = editor.hasChanged();
}
boolean state = (isEnabled && isComplete && hasChanged);
btnSet.setEnabled(state);
btnReset.setEnabled(state);
setCurrentSql(treeViewer.getLanguageObject());
// set enable/disable status of buttons
setEnabledStatus();
}
protected void handleResetSelected() {
editor.reset();
// put focus back on editor from the reset button
editor.acceptFocus();
}
protected void handleSetSelected() {
editor.save();
// need the editor's language object in order to update tree.
// the language object should never be null. if it was this handler should not have been called
LanguageObject langObj = editor.getLanguageObject();
CoreArgCheck.isNotNull(
langObj,
Util.getString(
PREFIX + "nullLangObj", // $NON-NLS-1$
new Object[] {"handleSetSelected"})); // $NON-NLS-1$
// update tree
treeViewer.modifySelectedItem(langObj, false);
// update SQL text
setCurrentSql(treeViewer.getLanguageObject());
// put focus back on editor from the set button
editor.acceptFocus();
}
protected void handleTreeSelection() {
IStructuredSelection selection = (IStructuredSelection) treeViewer.getSelection();
Object selectedObj = selection.getFirstElement();
if (selectedObj == null) {
savedSelection = null;
if (editor.isEnabled()) {
editor.setEnabled(false);
}
} else {
// selection with either be a LanguageObject or an Undefined object (String)
savedSelection =
(selectedObj instanceof LanguageObject) ? (LanguageObject) selectedObj : null;
}
setEditorLanguageObject(savedSelection);
// set enable/disable status of buttons
setEnabledStatus();
}
protected boolean isTreeSelectionRoot() {
boolean isRoot = false;
IStructuredSelection selection = (IStructuredSelection) treeViewer.getSelection();
if (selection.size() > 0) {
Tree tree = treeViewer.getTree();
// We are assuming that the tree is single-selection.
TreeItem treeItem = tree.getSelection()[0];
TreeItem parentItem = treeItem.getParentItem();
isRoot = (parentItem == null);
}
return isRoot;
}
protected void setCurrentSql(LanguageObject theLangObj) {
currentSql.setText(SQLStringVisitor.getSQLString(theLangObj));
}
protected void setEditorLanguageObject(LanguageObject theEditorLangObj) {
getEditor().setLanguageObject(savedSelection);
if (!editor.isEnabled()) {
editor.setEnabled(true);
}
}
protected void setEnabledStatus() {
//
// set enabled status of delete button
//
boolean canDelete = treeViewer.canDeleteSelection();
if (canDelete) {
if (!deleteAction.isEnabled()) {
deleteAction.setEnabled(true);
}
} else {
if (deleteAction.isEnabled()) {
deleteAction.setEnabled(false);
}
}
//
// set enabled status of OK button
//
Button btnOk = getButton(OK);
boolean enable = treeViewer.isComplete();
if (btnOk.isEnabled() != enable) {
btnOk.setEnabled(enable);
}
}
public void setLanguageObject(LanguageObject theLangObj) {
// language object must be cloned here so that the original isn't modified.
// this prevents the original from being modified even if the user cancels out of the builder.
LanguageObject langObj = (theLangObj == null) ? null : (LanguageObject) theLangObj.clone();
savedLangObj = langObj;
setOriginalSql(langObj);
setCurrentSql(langObj);
treeViewer.setLanguageObject(langObj);
treeViewer.selectRoot();
treeViewer.expandAll();
// Defect 22003 - needed a context for the original expression
// Providing a Lable at the top of the dialog.
String labelText =
Util.getString(PREFIX + "initialExpression")
+ //$NON-NLS-1$
CoreStringUtil.Constants.DBL_SPACE
+ CoreStringUtil.Constants.DBL_SPACE
+ Util.getString(PREFIX + "undefined"); // $NON-NLS-1$
if (savedLangObj != null) {
String loString = savedLangObj.toString();
if (loString.length() > 50) {
loString = loString.substring(0, 50) + "..."; // $NON-NLS-1$
}
labelText =
Util.getString(PREFIX + "initialExpression")
+ //$NON-NLS-1$
CoreStringUtil.Constants.DBL_SPACE
+ CoreStringUtil.Constants.DBL_SPACE
+ loString;
}
if (originalLanguageObjLabel != null) {
originalLanguageObjLabel.setText(labelText);
originalLanguageObjLabel.getParent().layout();
}
// select root tree node
Display.getDefault()
.asyncExec(
new Runnable() {
public void run() {
treeViewer.selectRoot();
}
});
}
protected void setOriginalSql(LanguageObject theLangObj) {
originalSql.setText(SQLStringVisitor.getSQLString(theLangObj));
}
}
/**
* Implements the SourceHandler interface which provides the VDB Editor the ability to access
* DQP-related connection info.
*/
public class VdbSourceConnectionHandler implements SourceHandler {
static final String PREFIX = I18nUtil.getPropertyPrefix(VdbSourceConnectionHandler.class);
private static SelectTranslatorAction selectTranslatorAction;
private static SelectJndiDataSourceAction selectJndiDataSourceAction;
private static Object[] actions;
private static boolean initialized = false;
static String getString(final String stringId) {
return UTIL.getString(PREFIX + stringId);
}
@Override
public VdbSourceConnection ensureVdbSourceConnection(
String sourceModelname, Properties properties) throws Exception {
CoreArgCheck.isNotNull(properties, "properties"); // $NON-NLS-1$
ModelConnectionMapper mapper = new ModelConnectionMapper(sourceModelname, properties);
VdbSourceConnection vdbSourceConnection = null;
ExecutionAdmin defaultAdmin = getDefaultServer().getAdmin();
String uuid = ModelerCore.workspaceUuid().toString();
try {
vdbSourceConnection = mapper.getVdbSourceConnection(defaultAdmin, uuid);
} catch (ModelWorkspaceException e) {
UTIL.log(
IStatus.ERROR,
e,
UTIL.getString(
"VdbSourceConnectionHandler.Error_could_not_find_source_connection_info_for_{0}_model",
sourceModelname)); //$NON-NLS-1$
}
// TODO: vdbSourceConnection may be NULL, so query the user for translator name & jndi name
return vdbSourceConnection;
}
@Override
public Object[] getApplicableActions(Object obj) {
if (!initialized) {
initialize();
}
Server defServer = getDefaultServer();
if (defServer == null || !defServer.isConnected()) {
return null;
}
if (obj instanceof IStructuredSelection) {
IStructuredSelection sel = (IStructuredSelection) obj;
if (sel.getFirstElement() instanceof VdbModelEntry) {
if (((VdbModelEntry) sel.getFirstElement()).getType() == ModelType.PHYSICAL_LITERAL) {
selectTranslatorAction.setSelection((VdbModelEntry) sel.getFirstElement());
selectJndiDataSourceAction.setSelection((VdbModelEntry) sel.getFirstElement());
return actions;
}
}
}
selectTranslatorAction.setSelection(null);
selectJndiDataSourceAction.setSelection(null);
return null;
}
private void initialize() {
// Construct the two actions
selectTranslatorAction =
new SelectTranslatorAction(getString("selectTranslatorAction.label")); // $NON-NLS-1$
selectJndiDataSourceAction =
new SelectJndiDataSourceAction(
getString("selectJndiDataSourceAction.label")); // $NON-NLS-1$
Collection<IAction> actionsList = new ArrayList();
actionsList.add(selectTranslatorAction);
actionsList.add(selectJndiDataSourceAction);
actions = actionsList.toArray();
}
class SelectJndiDataSourceAction extends Action {
public SelectJndiDataSourceAction(String text) {
super(text);
// TODO Auto-generated constructor stub
}
private VdbModelEntry vdbModelEntry;
public void setSelection(VdbModelEntry vdbModelEntry) {
this.vdbModelEntry = vdbModelEntry;
}
@Override
public void run() {
// Get available servers and launch SelectTranslatorDialog
// vdbModelEntry should not be null and should be a Physical model only
if (vdbModelEntry != null) {
String jndiName = vdbModelEntry.getJndiName();
SelectJndiDataSourceDialog dialog =
new SelectJndiDataSourceDialog(Display.getCurrent().getActiveShell());
TeiidDataSource initialSelection = null;
Server defServer = getDefaultServer();
if (defServer != null && defServer.isConnected()) {
try {
initialSelection = defServer.getAdmin().getDataSource(jndiName);
} catch (Exception e) {
UTIL.log(
IStatus.ERROR,
e,
UTIL.getString(
"VdbSourceConnectionHandler.Error_could_not_find_data_source_for_name",
jndiName)); //$NON-NLS-1$
}
dialog.setInitialSelection(initialSelection);
}
dialog.open();
if (dialog.getReturnCode() == Window.OK) {
Object result = dialog.getFirstResult();
if (result != null && result instanceof TeiidDataSource) {
vdbModelEntry.setJndiName(((TeiidDataSource) result).getName());
}
}
}
}
}
class SelectTranslatorAction extends Action {
public SelectTranslatorAction(String text) {
super(text);
// TODO Auto-generated constructor stub
}
private VdbModelEntry vdbModelEntry;
public void setSelection(VdbModelEntry vdbModelEntry) {
this.vdbModelEntry = vdbModelEntry;
}
@Override
public void run() {
// Get available servers and launch SelectTranslatorDialog
// vdbModelEntry should not be null and should be a Physical model only
if (vdbModelEntry != null) {
String transName = vdbModelEntry.getTranslator();
SelectTranslatorDialog dialog =
new SelectTranslatorDialog(Display.getCurrent().getActiveShell());
TeiidTranslator initialSelection = null;
Server defServer = getDefaultServer();
if (defServer != null && defServer.isConnected()) {
try {
initialSelection = defServer.getAdmin().getTranslator(transName);
} catch (Exception e) {
UTIL.log(
IStatus.ERROR,
e,
UTIL.getString(
"VdbSourceConnectionHandler.Error_could_not_find_translator_for_name",
transName)); //$NON-NLS-1$
}
dialog.setInitialSelection(initialSelection);
}
dialog.open();
if (dialog.getReturnCode() == Window.OK) {
Object result = dialog.getFirstResult();
if (result != null && result instanceof TeiidTranslator) {
vdbModelEntry.setTranslator(((TeiidTranslator) result).getName());
}
}
}
}
}
/**
* {@inheritDoc}
*
* @see org.teiid.designer.vdb.connections.SourceHandler#getDataSourceNames()
*/
@Override
public String[] getDataSourceNames() {
Server defaultServer = getDefaultServer();
if ((defaultServer != null) && defaultServer.isConnected()) {
Collection<TeiidDataSource> dataSources = null;
try {
dataSources = defaultServer.getAdmin().getDataSources();
} catch (Exception e) {
UTIL.log(
IStatus.ERROR,
e,
UTIL.getString(
"VdbSourceConnectionHandler.errorObtainingDataSources",
defaultServer.getHost())); // $NON-NLS-1$
}
if (dataSources != null) {
Collection<String> dataSourceNames = new ArrayList<String>();
for (TeiidDataSource dataSource : dataSources) {
if (!dataSource.isPreview()) {
dataSourceNames.add(dataSource.getName());
}
}
return dataSourceNames.toArray(new String[dataSourceNames.size()]);
}
}
return null;
}
Server getDefaultServer() {
return DqpPlugin.getInstance().getServerManager().getDefaultServer();
}
/**
* {@inheritDoc}
*
* @see
* org.teiid.designer.vdb.connections.SourceHandler#getTranslatorDefinitions(java.lang.String)
*/
@Override
public PropertyDefinition[] getTranslatorDefinitions(String translatorName) {
if (StringUtilities.isEmpty(translatorName)) {
throw new IllegalArgumentException();
}
Server defaultServer = getDefaultServer();
if ((defaultServer != null) && defaultServer.isConnected()) {
try {
TeiidTranslator translator = defaultServer.getAdmin().getTranslator(translatorName);
if (translator != null) {
Collection<PropertyDefinition> props = new ArrayList<PropertyDefinition>();
for (org.teiid.adminapi.PropertyDefinition propDefn :
translator.getPropertyDefinitions()) {
TranslatorProperty prop = new TranslatorProperty(propDefn.getPropertyTypeClassName());
prop.advanced = propDefn.isAdvanced();
prop.description = propDefn.getDescription();
prop.displayName = propDefn.getDisplayName();
prop.id = propDefn.getName();
prop.masked = propDefn.isMasked();
prop.modifiable = propDefn.isModifiable();
prop.required = propDefn.isRequired();
prop.defaultValue =
(propDefn.getDefaultValue() == null)
? StringUtilities.EMPTY_STRING
: propDefn.getDefaultValue().toString();
if (propDefn.isConstrainedToAllowedValues()) {
Collection values = propDefn.getAllowedValues();
prop.allowedValues = new String[values.size()];
int i = 0;
for (Object value : values) {
prop.allowedValues[i++] = value.toString();
}
} else {
// if boolean type turn into allowed values
String type = propDefn.getPropertyTypeClassName();
if (Boolean.class.getName().equals(type) || Boolean.TYPE.getName().equals(type)) {
prop.allowedValues =
new String[] {Boolean.TRUE.toString(), Boolean.FALSE.toString()};
}
}
props.add(prop);
}
return props.toArray(new PropertyDefinition[props.size()]);
}
} catch (Exception e) {
UTIL.log(
IStatus.ERROR,
e,
UTIL.getString(
"VdbSourceConnectionHandler.errorObtainingTranslatorProperties", //$NON-NLS-1$
translatorName,
defaultServer.getHost()));
}
}
return null;
}
/**
* {@inheritDoc}
*
* @see org.teiid.designer.vdb.connections.SourceHandler#getTranslatorTypes()
*/
@Override
public String[] getTranslatorTypes() {
Server defaultServer = getDefaultServer();
if ((defaultServer != null) && defaultServer.isConnected()) {
Collection<TeiidTranslator> translators = null;
try {
translators = defaultServer.getAdmin().getTranslators();
} catch (Exception e) {
UTIL.log(
IStatus.ERROR,
e,
UTIL.getString(
"VdbSourceConnectionHandler.errorObtainingTranslators",
defaultServer.getHost())); // $NON-NLS-1$
}
if (translators != null) {
Collection<String> translatorTypes = new ArrayList<String>();
for (TeiidTranslator translator : translators) {
translatorTypes.add(translator.getName());
}
return translatorTypes.toArray(new String[translatorTypes.size()]);
}
}
return null;
}
class TranslatorProperty implements PropertyDefinition {
private final String className;
boolean advanced;
String[] allowedValues;
String defaultValue;
String description;
String displayName;
String id;
boolean masked;
boolean modifiable;
boolean required;
public TranslatorProperty(String className) {
this.className = className;
}
/**
* {@inheritDoc}
*
* @see java.lang.Object#equals(java.lang.Object)
*/
@Override
public boolean equals(Object obj) {
if (this == obj) {
return true;
}
if ((obj == null) || (getClass() != obj.getClass())) {
return false;
}
return this.id.equals(((TranslatorProperty) obj).id);
}
/**
* {@inheritDoc}
*
* @see org.teiid.designer.core.properties.PropertyDefinition#getAllowedValues()
*/
@Override
public String[] getAllowedValues() {
return this.allowedValues;
}
/**
* {@inheritDoc}
*
* @see org.teiid.designer.core.properties.PropertyDefinition#getDefaultValue()
*/
@Override
public String getDefaultValue() {
return this.defaultValue;
}
/**
* {@inheritDoc}
*
* @see org.teiid.designer.core.properties.PropertyDefinition#getDescription()
*/
@Override
public String getDescription() {
return this.description;
}
/**
* {@inheritDoc}
*
* @see org.teiid.designer.core.properties.PropertyDefinition#getDisplayName()
*/
@Override
public String getDisplayName() {
return this.displayName;
}
/**
* {@inheritDoc}
*
* @see org.teiid.designer.core.properties.PropertyDefinition#getId()
*/
@Override
public String getId() {
return this.id;
}
/**
* {@inheritDoc}
*
* @see java.lang.Object#hashCode()
*/
@Override
public int hashCode() {
return this.id.hashCode();
}
/**
* {@inheritDoc}
*
* @see org.teiid.designer.core.properties.PropertyDefinition#isAdvanced()
*/
@Override
public boolean isAdvanced() {
return this.advanced;
}
/**
* {@inheritDoc}
*
* @see org.teiid.designer.core.properties.PropertyDefinition#isMasked()
*/
@Override
public boolean isMasked() {
return this.masked;
}
/**
* {@inheritDoc}
*
* @see org.teiid.designer.core.properties.PropertyDefinition#isModifiable()
*/
@Override
public boolean isModifiable() {
return this.modifiable;
}
/**
* {@inheritDoc}
*
* @see org.teiid.designer.core.properties.PropertyDefinition#isRequired()
*/
@Override
public boolean isRequired() {
return this.required;
}
/**
* {@inheritDoc}
*
* @see org.teiid.designer.core.properties.PropertyDefinition#isValidValue(java.lang.String)
*/
@Override
public String isValidValue(String newValue) {
// if empty must have a value or a default value if required
if (StringUtilities.isEmpty(newValue)) {
// invalid if required and no default value
if (isRequired() && StringUtilities.isEmpty(getDefaultValue())) {
return Util.getString("invalidNullPropertyValue", getDisplayName()); // $NON-NLS-1$
}
// OK to be null/empty
return null;
}
if (Boolean.class.getName().equals(this.className)
|| Boolean.TYPE.getName().equals(this.className)) {
if (!newValue.equalsIgnoreCase(Boolean.TRUE.toString())
&& !newValue.equalsIgnoreCase(Boolean.FALSE.toString())) {
return Util.getString(
"invalidPropertyValueForType", newValue, Boolean.TYPE.getName()); // $NON-NLS-1$
}
} else if (Character.class.getName().equals(this.className)
|| Character.TYPE.getName().equals(this.className)) {
if (newValue.length() != 1) {
return Util.getString(
"invalidPropertyValueForType", newValue, Character.TYPE.getName()); // $NON-NLS-1$
}
} else if (Byte.class.getName().equals(this.className)
|| Byte.TYPE.getName().equals(this.className)) {
try {
Byte.parseByte(newValue);
} catch (Exception e) {
return Util.getString(
"invalidPropertyValueForType", newValue, Byte.TYPE.getName()); // $NON-NLS-1$
}
} else if (Short.class.getName().equals(this.className)
|| Short.TYPE.getName().equals(this.className)) {
try {
Short.parseShort(newValue);
} catch (Exception e) {
return Util.getString(
"invalidPropertyValueForType", newValue, Short.TYPE.getName()); // $NON-NLS-1$
}
} else if (Integer.class.getName().equals(this.className)
|| Integer.TYPE.getName().equals(this.className)) {
try {
Integer.parseInt(newValue);
} catch (Exception e) {
return Util.getString(
"invalidPropertyValueForType", newValue, Integer.TYPE.getName()); // $NON-NLS-1$
}
} else if (Long.class.getName().equals(this.className)
|| Long.TYPE.getName().equals(this.className)) {
try {
Long.parseLong(newValue);
} catch (Exception e) {
return Util.getString(
"invalidPropertyValueForType", newValue, Long.TYPE.getName()); // $NON-NLS-1$
}
} else if (Float.class.getName().equals(this.className)
|| Float.TYPE.getName().equals(this.className)) {
try {
Float.parseFloat(newValue);
} catch (Exception e) {
return Util.getString(
"invalidPropertyValueForType", newValue, Float.TYPE.getName()); // $NON-NLS-1$
}
} else if (Double.class.getName().equals(this.className)
|| Double.TYPE.getName().equals(this.className)) {
try {
Double.parseDouble(newValue);
} catch (Exception e) {
return Util.getString(
"invalidPropertyValueForType", newValue, Double.TYPE.getName()); // $NON-NLS-1$
}
} else if (!String.class.getName().equals(this.className)) {
return Util.getString(
"unknownPropertyType", this.displayName, this.className); // $NON-NLS-1$
}
// valid value
return null;
}
}
}
/** ElementEditor */
public class ElementEditor extends AbstractLanguageObjectEditor {
private static final String PREFIX = I18nUtil.getPropertyPrefix(ElementEditor.class);
private ViewController controller;
private ElementEditorModel model;
private ICriteriaStrategy strategy;
private Composite pnlContent;
private TreeViewer viewer;
/**
* Constructs a <code>ElementEditor</code> using the given model.
*
* @param theParent the parent container
* @param theModel the editor's model
* @throws IllegalArgumentException if any of the parameters are <code>null</code>
*/
public ElementEditor(Composite theParent, ElementEditorModel theModel) {
super(theParent, ElementSymbol.class, theModel);
controller = new ViewController();
model = theModel;
model.addModelListener(controller);
// set the viewer on the CriteriaStrategy
strategy = ElementViewerFactory.getCriteriaStrategy(viewer);
strategy.setTreeViewer(viewer);
}
/** @see com.metamatrix.modeler.transformation.ui.builder.ILanguageObjectEditor#acceptFocus() */
@Override
public void acceptFocus() {
viewer.getTree().setFocus();
}
/**
* @see
* com.metamatrix.modeler.transformation.ui.builder.AbstractLanguageObjectEditor#createUi(org.eclipse.swt.widgets.Composite)
*/
@Override
protected void createUi(Composite theParent) {
pnlContent = new Composite(theParent, SWT.NONE);
pnlContent.setLayoutData(new GridData(GridData.FILL_BOTH));
pnlContent.setLayout(new FillLayout());
//
// pnlContent contents
//
viewer = ElementViewerFactory.createElementViewer(pnlContent);
viewer.addDoubleClickListener(
new IDoubleClickListener() {
public void doubleClick(DoubleClickEvent theEvent) {
handleDoubleClick();
}
});
viewer.addSelectionChangedListener(
new ISelectionChangedListener() {
public void selectionChanged(SelectionChangedEvent theEvent) {
handleTreeSelection();
}
});
viewer.expandAll();
}
/** Displays the appropriate UI for the current model state. */
void displayElementSymbol() {
CoreArgCheck.isNotNull(viewer);
StructuredSelection selection = StructuredSelection.EMPTY;
if (model.getElementSymbol() != null) {
strategy.setTreeViewer(viewer); // make sure this viewer is set before using strategy
Object node = strategy.getNode(model.getElementSymbol());
if (node != null) {
selection = new StructuredSelection(node);
}
if (!selection.equals(viewer.getSelection())) {
viewer.setSelection(selection);
}
}
}
/** @see com.metamatrix.modeler.transformation.ui.builder.ILanguageObjectEditor#getTitle() */
@Override
public String getTitle() {
return Util.getString(PREFIX + "title"); // $NON-NLS-1$
}
/**
* @see
* com.metamatrix.modeler.transformation.ui.builder.AbstractLanguageObjectEditor#getToolTipText()
*/
@Override
public String getToolTipText() {
return Util.getString(PREFIX + "tip"); // $NON-NLS-1$
}
/** Handler for double-click in tree. */
void handleDoubleClick() {}
/** Handler for tree selection. */
void handleTreeSelection() {
IStructuredSelection selection = (IStructuredSelection) viewer.getSelection();
ElementSymbol element = null;
if (!selection.isEmpty()) {
ICriteriaStrategy strategy = ElementViewerFactory.getCriteriaStrategy(viewer);
strategy.setTreeViewer(viewer); // make sure this viewer is set before using strategy
if (strategy.isValid(selection.getFirstElement())) {
Object eObj = selection.getFirstElement();
if (eObj instanceof ElementSymbol) {
element = ((ElementSymbol) eObj);
} else {
element = new ElementSymbol(strategy.getRuntimeFullName(eObj), true);
// the viewer model contains EObjects. so the objects in the selection will
// be EObjects. since the EObject is used later on in the QueryCriteriaStrategy.getNode()
// method. save it here.
element.setMetadataID(eObj);
}
}
}
model.selectElementSymbol(element);
}
/**
* @see
* com.metamatrix.modeler.transformation.ui.builder.ILanguageObjectEditor#setLanguageObject(com.metamatrix.query.sql.LanguageObject)
*/
@Override
public void setLanguageObject(LanguageObject theLanguageObject) {
if (theLanguageObject == null) {
clear();
} else {
if (!(theLanguageObject instanceof ElementSymbol)) {
CoreArgCheck.isTrue(
(theLanguageObject instanceof ElementSymbol),
Util.getString(
PREFIX + "invalidLanguageObject", // $NON-NLS-1$
new Object[] {theLanguageObject.getClass().getName()}));
}
model.setLanguageObject(theLanguageObject);
}
}
/**
* The <code>ViewController</code> class is a view controller for the <code>ElementEditor</code>.
*/
class ViewController implements ILanguageObjectEditorModelListener {
/**
* @see
* com.metamatrix.query.internal.ui.builder.model.ILanguageObjectEditorModelListener#modelChanged(com.metamatrix.query.internal.ui.builder.model.LanguageObjectEditorModelEvent)
*/
public void modelChanged(LanguageObjectEditorModelEvent theEvent) {
displayElementSymbol();
}
}
}
