private void makeStructureProposals(
final DBRProgressMonitor monitor,
final List<SQLCompletionProposal> proposals,
final String wordPart,
final QueryType queryType) {
DBPDataSource dataSource = editor.getDataSource();
if (dataSource == null) {
return;
}
if (queryType != null) {
// Try to determine which object is queried (if wordPart is not empty)
// or get list of root database objects
if (wordPart.length() == 0) {
// Get root objects
DBSObject rootObject = null;
if (queryType == QueryType.COLUMN && dataSource instanceof DBSObjectContainer) {
// Try to detect current table
rootObject = getTableFromAlias(monitor, (DBSObjectContainer) dataSource, null);
} else if (dataSource instanceof DBSObjectContainer) {
// Try to get from active object
DBSObject selectedObject = getSelectedObject(dataSource);
if (selectedObject != null) {
makeProposalsFromChildren(monitor, selectedObject, null, proposals);
}
rootObject = (DBSObjectContainer) dataSource;
}
if (rootObject != null) {
makeProposalsFromChildren(monitor, rootObject, null, proposals);
}
} else {
DBSObject rootObject = null;
if (queryType == QueryType.COLUMN && dataSource instanceof DBSObjectContainer) {
// Part of column name
// Try to get from active object
DBSObjectContainer sc = (DBSObjectContainer) dataSource;
DBSObject selectedObject = getSelectedObject(dataSource);
if (selectedObject instanceof DBSObjectContainer) {
sc = (DBSObjectContainer) selectedObject;
}
int divPos = wordPart.indexOf(editor.getSyntaxManager().getStructSeparator());
String tableAlias = divPos == -1 ? null : wordPart.substring(0, divPos);
rootObject = getTableFromAlias(monitor, sc, tableAlias);
}
if (rootObject != null) {
makeProposalsFromChildren(monitor, rootObject, wordPart, proposals);
} else {
// Get root object or objects from active database (if any)
makeStructureProposals(monitor, dataSource, proposals);
}
}
} else {
// Get list of sub-objects (filtered by wordPart)
makeStructureProposals(monitor, dataSource, proposals);
}
}
/*
* Turns the vector into an Array of ICompletionProposal objects
*/
protected SQLCompletionProposal createCompletionProposal(
String replaceString,
String displayString,
String description,
@Nullable DBPImage image,
boolean isObject,
@Nullable DBPNamedObject object) {
DBPPreferenceStore store = getPreferences();
DBPDataSource dataSource = editor.getDataSource();
if (dataSource != null) {
if (isObject) {
// Escape replace string if required
replaceString = DBUtils.getQuotedIdentifier(dataSource, replaceString);
}
}
// If we have quoted string then ignore pref settings
boolean quotedString = wordDetector.isQuoted(replaceString);
final int proposalCase =
quotedString
? SQLPreferenceConstants.PROPOSAL_CASE_DEFAULT
: store.getInt(SQLPreferenceConstants.PROPOSAL_INSERT_CASE);
switch (proposalCase) {
case SQLPreferenceConstants.PROPOSAL_CASE_UPPER:
replaceString = replaceString.toUpperCase();
break;
case SQLPreferenceConstants.PROPOSAL_CASE_LOWER:
replaceString = replaceString.toLowerCase();
break;
default:
DBPIdentifierCase convertCase =
quotedString && dataSource instanceof SQLDataSource
? ((SQLDataSource) dataSource).getSQLDialect().storesQuotedCase()
: DBPIdentifierCase.MIXED;
replaceString = convertCase.transform(replaceString);
break;
}
Image img = image == null ? null : DBeaverIcons.getImage(image);
return new SQLCompletionProposal(
editor.getSyntaxManager(),
displayString,
replaceString, // replacementString
wordDetector, // wordDetector
replaceString.length(), // cursorPosition the position of the cursor following the insert
// relative to replacementOffset
img, // image to display
new ContextInformation(
img,
displayString,
displayString), // the context information associated with this proposal
description,
object);
}
private SQLCompletionProposal makeProposalsFromObject(
DBPNamedObject object, @Nullable DBPImage objectIcon) {
String objectName = DBUtils.getObjectFullName(object);
StringBuilder info = new StringBuilder();
PropertyCollector collector = new PropertyCollector(object, false);
collector.collectProperties();
for (DBPPropertyDescriptor descriptor : collector.getPropertyDescriptors2()) {
Object propValue = collector.getPropertyValue(descriptor.getId());
if (propValue == null) {
continue;
}
String propString = propValue.toString();
info.append("<b>").append(descriptor.getDisplayName()).append(": </b>");
info.append(propString);
info.append("<br>");
}
boolean isSingleObject = true;
String replaceString = null;
DBPDataSource dataSource = editor.getDataSource();
if (dataSource != null) {
// If we replace short name with referenced object
// and current active schema (catalog) is not this object's container then
// replace with full qualified name
if (!getPreferences().getBoolean(SQLPreferenceConstants.PROPOSAL_SHORT_NAME)
&& object instanceof DBSObjectReference) {
if (wordDetector.getFullWord().indexOf(editor.getSyntaxManager().getStructSeparator())
== -1) {
DBSObjectReference structObject = (DBSObjectReference) object;
if (structObject.getContainer() != null) {
DBSObject selectedObject = getSelectedObject(dataSource);
if (selectedObject != structObject.getContainer()) {
replaceString =
DBUtils.getFullQualifiedName(dataSource, structObject.getContainer(), object);
isSingleObject = false;
}
}
}
}
if (replaceString == null) {
replaceString = DBUtils.getQuotedIdentifier(dataSource, object.getName());
}
} else {
replaceString = DBUtils.getObjectShortName(object);
}
return createCompletionProposal(
replaceString, objectName, info.toString(), objectIcon, isSingleObject, object);
}
private void makeProposalsFromChildren(
DBRProgressMonitor monitor,
DBSObject parent,
@Nullable String startPart,
List<SQLCompletionProposal> proposals) {
if (startPart != null) {
startPart = wordDetector.removeQuotes(startPart).toUpperCase();
int divPos = startPart.lastIndexOf(editor.getSyntaxManager().getStructSeparator());
if (divPos != -1) {
startPart = startPart.substring(divPos + 1);
}
}
try {
Collection<? extends DBSObject> children = null;
if (parent instanceof DBSObjectContainer) {
children = ((DBSObjectContainer) parent).getChildren(monitor);
} else if (parent instanceof DBSEntity) {
children = ((DBSEntity) parent).getAttributes(monitor);
}
if (children != null && !children.isEmpty()) {
for (DBSObject child : children) {
if (startPart != null && !child.getName().toUpperCase().startsWith(startPart)) {
continue;
}
proposals.add(makeProposalsFromObject(monitor, child));
}
}
} catch (DBException e) {
log.error(e);
}
}
private DBPPreferenceStore getPreferences() {
DBPPreferenceStore store = null;
DBPDataSource dataSource = editor.getDataSource();
if (dataSource != null) {
store = dataSource.getContainer().getPreferenceStore();
}
if (store == null) {
store = DBeaverCore.getGlobalPreferenceStore();
}
return store;
}
/**
* This method is incomplete in that it does not implement logic to produce some context help
* relevant to SQL. It just hard codes two strings to demonstrate the action
*
* @see
* org.eclipse.jface.text.contentassist.IContentAssistProcessor#computeContextInformation(ITextViewer,
* int)
*/
@Nullable
@Override
public IContextInformation[] computeContextInformation(ITextViewer viewer, int documentOffset) {
SQLQuery statementInfo = editor.extractQueryAtPos(documentOffset);
if (statementInfo == null || CommonUtils.isEmpty(statementInfo.getQuery())) {
return null;
}
IContextInformation[] result = new IContextInformation[1];
result[0] = new ContextInformation(statementInfo.getQuery(), statementInfo.getQuery());
return result;
}
@NotNull
private ICompletionProposal[] makeTemplateProposals(
ITextViewer viewer, int documentOffset, String wordPart) {
wordPart = wordPart.toLowerCase();
final List<SQLTemplateCompletionProposal> templateProposals = new ArrayList<>();
// Templates
for (Template template : editor.getTemplatesPage().getTemplateStore().getTemplates()) {
if (template.getName().toLowerCase().startsWith(wordPart)) {
templateProposals.add(
new SQLTemplateCompletionProposal(
template,
new SQLContext(
SQLTemplatesRegistry.getInstance()
.getTemplateContextRegistry()
.getContextType(template.getContextTypeId()),
viewer.getDocument(),
new Position(wordDetector.getStartOffset(), wordDetector.getLength()),
editor),
new Region(documentOffset, 0),
null));
}
}
return templateProposals.toArray(new ICompletionProposal[templateProposals.size()]);
}
@Nullable
private DBSObject getTableFromAlias(
DBRProgressMonitor monitor, DBSObjectContainer sc, @Nullable String token) {
final DBPDataSource dataSource = editor.getDataSource();
if (!(dataSource instanceof SQLDataSource)) {
return null;
}
if (activeQuery == null) {
activeQuery = editor.extractQueryAtPos(documentOffset).getQuery() + " ";
}
final List<String> nameList = new ArrayList<>();
if (token == null) {
token = "";
}
{
Matcher matcher;
Pattern aliasPattern;
SQLDialect sqlDialect = ((SQLDataSource) dataSource).getSQLDialect();
String quoteString = sqlDialect.getIdentifierQuoteString();
String quote =
quoteString == null
? SQLConstants.STR_QUOTE_DOUBLE
: SQLConstants.STR_QUOTE_DOUBLE.equals(quoteString)
? quoteString
: Pattern.quote(quoteString);
String catalogSeparator = sqlDialect.getCatalogSeparator();
while (token.endsWith(catalogSeparator)) token = token.substring(0, token.length() - 1);
String tableNamePattern =
"((?:"
+ quote
+ "(?:[.[^"
+ quote
+ "]]+)"
+ quote
+ ")|(?:[\\w"
+ Pattern.quote(catalogSeparator)
+ "]+))";
String structNamePattern;
if (CommonUtils.isEmpty(token)) {
structNamePattern = "(?:from|update|join|into)\\s*" + tableNamePattern;
} else {
structNamePattern =
tableNamePattern
+ "(?:\\s*\\.\\s*"
+ tableNamePattern
+ ")?"
+ "\\s+(?:(?:AS)\\s)?"
+ token
+ "[\\s,]+";
}
try {
aliasPattern = Pattern.compile(structNamePattern, Pattern.CASE_INSENSITIVE);
} catch (PatternSyntaxException e) {
// Bad pattern - seems to be a bad token
return null;
}
matcher = aliasPattern.matcher(activeQuery);
if (!matcher.find()) {
return null;
}
int groupCount = matcher.groupCount();
for (int i = 1; i <= groupCount; i++) {
String group = matcher.group(i);
if (!CommonUtils.isEmpty(group)) {
String[] allNames = group.split(Pattern.quote(catalogSeparator));
for (String name : allNames) {
if (quoteString != null && name.startsWith(quoteString) && name.endsWith(quoteString)) {
name = name.substring(1, name.length() - 1);
}
nameList.add(name);
}
}
}
}
if (nameList.isEmpty()) {
return null;
}
for (int i = 0; i < nameList.size(); i++) {
nameList.set(
i, DBObjectNameCaseTransformer.transformName(sc.getDataSource(), nameList.get(i)));
}
try {
DBSObject childObject = null;
while (childObject == null) {
childObject = DBUtils.findNestedObject(monitor, sc, nameList);
if (childObject == null) {
DBSObjectContainer parentSc = DBUtils.getParentAdapter(DBSObjectContainer.class, sc);
if (parentSc == null) {
break;
}
sc = parentSc;
}
}
if (childObject == null && nameList.size() <= 1) {
// No such object found - may be it's start of table name
DBSStructureAssistant structureAssistant =
DBUtils.getAdapter(DBSStructureAssistant.class, sc);
if (structureAssistant != null) {
String objectNameMask = nameList.get(0);
Collection<DBSObjectReference> tables =
structureAssistant.findObjectsByMask(
monitor,
sc,
structureAssistant.getAutoCompleteObjectTypes(),
wordDetector.removeQuotes(objectNameMask),
wordDetector.isQuoted(objectNameMask),
2);
if (!tables.isEmpty()) {
return tables.iterator().next().resolveObject(monitor);
}
}
return null;
} else {
return childObject;
}
} catch (DBException e) {
log.error(e);
return null;
}
}
/**
* This method returns a list of completion proposals as ICompletionProposal objects. The
* proposals are based on the word at the offset in the document where the cursor is positioned.
* In this implementation, we find the word at the document offset and compare it to our list of
* SQL reserved words. The list is a subset, of those words that match what the user has entered.
* For example, the text or proposes the SQL keywords OR and ORDER. The list is returned as an
* array of completion proposals.
*
* @see
* org.eclipse.jface.text.contentassist.IContentAssistProcessor#computeCompletionProposals(ITextViewer,
* int)
*/
@Override
public ICompletionProposal[] computeCompletionProposals(ITextViewer viewer, int documentOffset) {
this.documentOffset = documentOffset;
this.activeQuery = null;
this.wordDetector =
new SQLWordPartDetector(viewer.getDocument(), editor.getSyntaxManager(), documentOffset);
final String wordPart = wordDetector.getWordPart();
if (lookupTemplates) {
return makeTemplateProposals(viewer, documentOffset, wordPart);
}
final List<SQLCompletionProposal> proposals = new ArrayList<>();
QueryType queryType = null;
{
final String prevKeyWord = wordDetector.getPrevKeyWord();
if (!CommonUtils.isEmpty(prevKeyWord)) {
if (editor.getSyntaxManager().getDialect().isEntityQueryWord(prevKeyWord)) {
queryType = QueryType.TABLE;
} else if (editor.getSyntaxManager().getDialect().isAttributeQueryWord(prevKeyWord)) {
queryType = QueryType.COLUMN;
}
}
}
if (queryType != null) {
if (editor.getDataSource() != null) {
try {
final QueryType qt = queryType;
DBeaverUI.runInProgressService(
new DBRRunnableWithProgress() {
@Override
public void run(DBRProgressMonitor monitor)
throws InvocationTargetException, InterruptedException {
monitor.beginTask("Seeking for completion proposals", 1);
try {
monitor.subTask("Make structure proposals");
makeStructureProposals(monitor, proposals, wordPart, qt);
} finally {
monitor.done();
}
}
});
} catch (InvocationTargetException e) {
log.warn("Error while seeking for structure proposals", e.getTargetException());
} catch (InterruptedException e) {
// interrupted - do nothing
}
}
}
if (proposals.isEmpty() || !wordPart.isEmpty()) {
// Keyword assist
List<String> matchedKeywords =
editor.getSyntaxManager().getDialect().getMatchedKeywords(wordPart);
for (String keyWord : matchedKeywords) {
DBPKeywordType keywordType = editor.getSyntaxManager().getDialect().getKeywordType(keyWord);
if (keywordType != null) {
proposals.add(
createCompletionProposal(
keyWord, keyWord, keyWord + " (" + keywordType.name() + ")", null, false, null));
}
}
}
// Remove duplications
for (int i = 0; i < proposals.size(); i++) {
SQLCompletionProposal proposal = proposals.get(i);
for (int j = i + 1; j < proposals.size(); ) {
SQLCompletionProposal proposal2 = proposals.get(j);
if (proposal.getDisplayString().equals(proposal2.getDisplayString())) {
proposals.remove(j);
} else {
j++;
}
}
}
DBSObject selectedObject = getSelectedObject(editor.getDataSource());
boolean hideDups =
getPreferences().getBoolean(SQLPreferenceConstants.HIDE_DUPLICATE_PROPOSALS)
&& selectedObject != null;
if (hideDups) {
for (int i = 0; i < proposals.size(); i++) {
SQLCompletionProposal proposal = proposals.get(i);
for (int j = 0; j < proposals.size(); ) {
SQLCompletionProposal proposal2 = proposals.get(j);
if (i != j
&& proposal.hasStructObject()
&& proposal2.hasStructObject()
&& CommonUtils.equalObjects(
proposal.getObject().getName(), proposal2.getObject().getName())
&& proposal.getObjectContainer() == selectedObject) {
proposals.remove(j);
} else {
j++;
}
}
}
}
if (hideDups) {
// Remove duplicates from non-active schema
if (selectedObject instanceof DBSObjectContainer) {
// List<ICompletionProposal>
}
}
return proposals.toArray(new ICompletionProposal[proposals.size()]);
}
