/**
* Evaluate the matches() function to give a Boolean value.
*
* @param c The dynamic evaluation context
* @return the result as a BooleanValue, or null to indicate the empty sequence
* @throws XPathException on an error
*/
public Item evaluateItem(XPathContext c) throws XPathException {
AtomicValue sv0 = (AtomicValue) argument[0].evaluateItem(c);
if (sv0 == null) {
sv0 = StringValue.EMPTY_STRING;
}
;
RegularExpression re = regexp;
if (re == null) {
AtomicValue pat = (AtomicValue) argument[1].evaluateItem(c);
if (pat == null) return null;
CharSequence flags;
if (argument.length == 2) {
flags = "";
} else {
AtomicValue sv2 = (AtomicValue) argument[2].evaluateItem(c);
if (sv2 == null) return null;
flags = sv2.getStringValueCS();
}
try {
final Platform platform = c.getConfiguration().getPlatform();
re = platform.compileRegularExpression(pat.getStringValueCS(), true, flags);
} catch (XPathException err) {
DynamicError de = new DynamicError(err);
de.setErrorCode("FORX0002");
de.setXPathContext(c);
throw de;
}
}
return BooleanValue.get(re.containsMatch(sv0.getStringValueCS()));
}
/**
* Process this instruction
*
* @param context the dynamic context of the transformation
* @return a TailCall to be executed by the caller, always null for this instruction
*/
public TailCall processLeavingTail(XPathContext context) throws XPathException {
Controller controller = context.getController();
SequenceReceiver out = context.getReceiver();
int opt = options;
int ann = annotation;
// we may need to change the namespace prefix if the one we chose is
// already in use with a different namespace URI: this is done behind the scenes
// by the Outputter
CharSequence value = expandChildren(context);
if (schemaType != null) {
// test whether the value actually conforms to the given type
XPathException err =
schemaType.validateContent(
value,
DummyNamespaceResolver.getInstance(),
context.getConfiguration().getNameChecker());
if (err != null) {
ValidationException verr =
new ValidationException(
"Attribute value "
+ Err.wrap(value, Err.VALUE)
+ " does not the match the required type "
+ schemaType.getDescription()
+ ". "
+ err.getMessage());
verr.setErrorCode("XTTE1540");
verr.setLocator(this);
throw verr;
}
} else if (validationAction == Validation.STRICT || validationAction == Validation.LAX) {
try {
ann = controller.getConfiguration().validateAttribute(nameCode, value, validationAction);
} catch (ValidationException e) {
DynamicError err = DynamicError.makeDynamicError(e);
String errorCode = e.getErrorCodeLocalPart();
if (errorCode == null) {
errorCode = (validationAction == Validation.STRICT ? "XTTE1510" : "XTTE1515");
}
err.setErrorCode(errorCode);
err.setXPathContext(context);
err.setLocator(this);
err.setIsTypeError(true);
throw err;
}
}
try {
out.attribute(nameCode, ann, value, locationId, opt);
} catch (XPathException err) {
throw dynamicError(this, err, context);
}
return null;
}
/** Evaluate in a general context */
public Item evaluateItem(XPathContext c) throws XPathException {
StringValue sv = (StringValue) argument[0].evaluateItem(c);
if (sv == null) {
return StringValue.EMPTY_STRING;
}
byte fb = Normalizer.C;
if (argument.length == 2) {
String form = argument[1].evaluateAsString(c).trim();
if (form.equalsIgnoreCase("NFC")) {
fb = Normalizer.C;
} else if (form.equalsIgnoreCase("NFD")) {
fb = Normalizer.D;
} else if (form.equalsIgnoreCase("NFKC")) {
fb = Normalizer.KC;
} else if (form.equalsIgnoreCase("NFKD")) {
fb = Normalizer.KD;
} else if (form.equalsIgnoreCase("")) {
return sv;
} else {
String msg = "Normalization form " + form + " is not supported";
DynamicError err = new DynamicError(msg);
err.setErrorCode("FOCH0003");
err.setXPathContext(c);
err.setLocator(this);
throw err;
}
}
// fast path for ASCII strings: normalization is a no-op
boolean allASCII = true;
CharSequence chars = sv.getStringValueCS();
if (chars instanceof CompressedWhitespace) {
return sv;
}
for (int i = chars.length() - 1; i >= 0; i--) {
if (chars.charAt(i) > 127) {
allASCII = false;
break;
}
}
if (allASCII) {
return sv;
}
Normalizer norm = new Normalizer(fb);
CharSequence result = norm.normalize(sv.getStringValueCS());
return StringValue.makeStringValue(result);
}
public Item evaluateItem(XPathContext context) throws XPathException {
Orphan o = (Orphan) super.evaluateItem(context);
if (schemaType != null) {
XPathException err =
schemaType.validateContent(
o.getStringValueCS(),
DummyNamespaceResolver.getInstance(),
context.getConfiguration().getNameChecker());
if (err != null) {
throw new ValidationException(
"Attribute value "
+ Err.wrap(o.getStringValueCS(), Err.VALUE)
+ " does not the match the required type "
+ schemaType.getDescription()
+ ". "
+ err.getMessage());
}
o.setTypeAnnotation(schemaType.getFingerprint());
if (schemaType.isNamespaceSensitive()) {
throw new DynamicError(
"Cannot validate a parentless attribute whose content is namespace-sensitive");
}
} else if (validationAction == Validation.STRICT || validationAction == Validation.LAX) {
try {
int ann =
context
.getController()
.getConfiguration()
.validateAttribute(nameCode, o.getStringValueCS(), validationAction);
o.setTypeAnnotation(ann);
} catch (ValidationException e) {
DynamicError err = DynamicError.makeDynamicError(e);
err.setErrorCode(e.getErrorCodeLocalPart());
err.setXPathContext(context);
err.setLocator(this);
err.setIsTypeError(true);
throw err;
}
}
return o;
}
public void process(XPathContext context) throws XPathException {
// Prepare the SQL statement (only do this once)
Controller controller = context.getController();
Item conn = arguments[CONNECTION].evaluateItem(context);
if (!(conn instanceof ObjectValue
&& ((ObjectValue) conn).getObject() instanceof Connection)) {
DynamicError de =
new DynamicError("Value of connection expression is not a JDBC Connection");
de.setXPathContext(context);
throw de;
}
Connection connection = (Connection) ((ObjectValue) conn).getObject();
String dbCol = arguments[COLUMN].evaluateAsString(context);
String dbTab = arguments[TABLE].evaluateAsString(context);
String dbWhere = arguments[WHERE].evaluateAsString(context);
NamePool pool = controller.getNamePool();
int rowCode = pool.allocate("", "", rowTag);
int colCode = pool.allocate("", "", colTag);
PreparedStatement ps = null;
ResultSet rs = null;
DynamicError de = null;
try {
StringBuffer statement = new StringBuffer();
statement.append("SELECT " + dbCol + " FROM " + dbTab);
if (dbWhere != "") {
statement.append(" WHERE " + dbWhere);
}
// System.err.println("-> SQL: " + statement.toString());
// -- Prepare the SQL statement
ps = connection.prepareStatement(statement.toString());
controller.setUserData(this, "sql:statement", ps);
// -- Execute Statement
rs = ps.executeQuery();
// -- Print out Result
Receiver out = context.getReceiver();
String result = "";
int icol = rs.getMetaData().getColumnCount();
while (rs.next()) { // next row
// System.out.print("<- SQL : "+ rowStart);
out.startElement(rowCode, StandardNames.XDT_UNTYPED, locationId, 0);
for (int col = 1; col <= icol; col++) { // next column
// Read result from RS only once, because
// of JDBC-Specifications
result = rs.getString(col);
out.startElement(colCode, StandardNames.XDT_UNTYPED, locationId, 0);
if (result != null) {
out.characters(result, locationId, options);
}
out.endElement();
}
// System.out.println(rowEnd);
out.endElement();
}
// rs.close();
if (!connection.getAutoCommit()) {
connection.commit();
}
} catch (SQLException ex) {
de = new DynamicError("(SQL) " + ex.getMessage());
de.setXPathContext(context);
throw de;
} finally {
boolean wasDEThrown = (de != null);
if (rs != null) {
try {
rs.close();
} catch (SQLException ex) {
de = new DynamicError("(SQL) " + ex.getMessage());
de.setXPathContext(context);
}
}
if (ps != null) {
try {
ps.close();
} catch (SQLException ex) {
de = new DynamicError("(SQL) " + ex.getMessage());
de.setXPathContext(context);
}
}
if (!wasDEThrown && de != null) {
throw de; // test so we don't lose the real exception
}
}
}