/**
* Sets a property, metadata, or data value with the characters in the given array of characters,
* starting with the array element indicated by <code>start</code> and continuing for <code>length
* </code> number of characters.
*
* <p>The SAX parser invokes this method and supplies the character array, start position, and
* length parameter values it got from parsing the XML document. An application programmer never
* invokes this method directly.
*
* @param ch an array of characters supplied by the SAX parser, all or part of which will be used
* to set a value
* @param start the position in the given array at which to start
* @param length the number of consecutive characters to use
*/
public void characters(char[] ch, int start, int length) throws SAXException {
try {
switch (getState()) {
case PROPERTIES:
propertyValue = new String(ch, start, length);
/**
* This has been added for handling of special characters. When special characters are
* encountered the characters function gets called for each of the characters so we need
* to append the value got in the previous call as it is the same data present between the
* start and the end tag.
*/
tempCommand = tempCommand.concat(propertyValue);
propertyValue = tempCommand;
// Added the following check for handling of type tags in maps
if (tag == PropTypeTag) {
Key_map = propertyValue;
}
// Added the following check for handling of class tags in maps
else if (tag == PropClassTag) {
Value_map = propertyValue;
}
break;
case METADATA:
// The parser will come here after the endElement as there is
// "\n" in the after endTag is printed. This will cause a problem
// when the data between the tags is an empty string so adding
// below condition to take care of that situation.
if (tag == -1) {
break;
}
metaDataValue = new String(ch, start, length);
break;
case DATA:
setDataValue(ch, start, length);
break;
default:;
}
} catch (SQLException ex) {
throw new SAXException(
resBundle.handleGetObject("xmlrch.chars").toString() + ex.getMessage());
}
}
private void applyUpdates() throws SAXException {
// now handle any updates
if (updates.size() > 0) {
try {
Object upd[];
Iterator<?> i = updates.iterator();
while (i.hasNext()) {
upd = (Object[]) i.next();
idx = ((Integer) upd[0]).intValue();
if (!(lastval.equals(upd[1]))) {
insertValue((String) (upd[1]));
}
}
rs.updateRow();
} catch (SQLException ex) {
throw new SAXException(
MessageFormat.format(
resBundle.handleGetObject("xmlrch.errupdrow").toString(), ex.getMessage()));
}
updates.removeAllElements();
}
}
/**
* ** Returns true if the specified key attribute exists in the table ** @param altIndexName The
* alternate index name, or null to use the primary index ** @param whereKeyType The partial key
* match type ** @return True if the specified key attribute exists in the table, false otherwise
*/
protected boolean _exists(String altIndexName, int whereKeyType)
throws SQLException, DBException {
/* key fields */
boolean usePrimaryKey = StringTools.isBlank(altIndexName);
DBField kfld[] = usePrimaryKey ? this.getKeyFields() : this.getAltKeyFields(altIndexName);
if (ListTools.isEmpty(kfld)) {
throw new DBException("No keys found!");
}
/* check last key for "auto_increment" */
if (whereKeyType == DBWhere.KEY_FULL) {
DBField lastField = kfld[kfld.length - 1];
if (lastField.isAutoIncrement()
&& !this.getFieldValues().hasFieldValue(lastField.getName())) {
// full key requested and last key is auto_increment, which is missing
return false;
}
}
// DBSelect: SELECT <Keys> FROM <TableName> <KeyWhere>
String firstKey = kfld[0].getName();
DBSelect<gDBR> dsel = new DBSelect<gDBR>(this.getFactory());
dsel.setSelectedFields(firstKey);
dsel.setWhere(this._getWhereClause(altIndexName, whereKeyType));
/* get keyed record */
DBConnection dbc = null;
Statement stmt = null;
ResultSet rs = null;
boolean exists = false;
try {
dbc = DBConnection.getDefaultConnection();
stmt = dbc.execute(dsel.toString()); // may throw DBException
rs = stmt.getResultSet();
exists = rs.next();
} catch (SQLException sqe) {
if (sqe.getErrorCode() == DBFactory.SQLERR_TABLE_NOTLOCKED) {
// MySQL: This case has been seen on rare occasions. Not sure what causes it.
Print.logError("SQL Lock Error: " + sqe);
Print.logError("Hackery! Forcing lock on table: " + this.getTableName());
if (DBProvider.lockTableForRead(this.getTableName(), true)) { // may throw DBException
stmt = dbc.execute(dsel.toString()); // may throw SQLException, DBException
rs = stmt.getResultSet(); // SQLException
exists = rs.next(); // SQLException
DBProvider.unlockTables(); // DBException
}
} else {
throw sqe;
}
} finally {
if (rs != null) {
try {
rs.close();
} catch (Throwable t) {
}
}
if (stmt != null) {
try {
stmt.close();
} catch (Throwable t) {
}
}
DBConnection.release(dbc);
}
return exists;
}
/**
* Sets the value for the given element if <code>name</code> is one of the array elements in the
* fields <code>properties</code>, <code>colDef</code>, or <code>data</code> and this <code>
* XmlReaderContentHandler</code> object's state is not <code>INITIAL</code>. If the state is
* <code>INITIAL</code>, this method does nothing.
*
* <p>If the state is <code>METADATA</code> and the argument supplied is <code>"metadata"</code>,
* the rowset's metadata is set. If the state is <code>PROPERTIES</code>, the appropriate property
* is set using the given name to determine the appropriate value. If the state is <code>DATA
* </code> and the argument supplied is <code>"data"</code>, this method sets the state to <code>
* INITIAL</code> and returns. If the argument supplied is one of the elements in the field <code>
* data</code>, this method makes the appropriate changes to the rowset's data.
*
* @param lName the name of the element; either (1) one of the array elements in the fields <code>
* properties</code>, <code>colDef</code>, or <code>data</code> or (2) one of the <code>RowSet
* </code> elements <code>"properties"</code>, <code>"metadata"</code>, or <code>"data"</code>
* @exception SAXException if a general SAX error occurs
*/
@SuppressWarnings("fallthrough")
public void endElement(String uri, String lName, String qName) throws SAXException {
int tag;
String name = "";
name = lName;
switch (getState()) {
case PROPERTIES:
if (name.equals("properties")) {
state = INITIAL;
break;
}
try {
tag = propMap.get(name);
switch (tag) {
case KeycolsTag:
if (keyCols != null) {
int i[] = new int[keyCols.size()];
for (int j = 0; j < i.length; j++) i[j] = Integer.parseInt(keyCols.elementAt(j));
rs.setKeyColumns(i);
}
break;
case PropClassTag:
// Added the handling for Class tags to take care of maps
// Makes an entry into the map upon end of class tag
try {
typeMap.put(Key_map, j86.sun.reflect.misc.ReflectUtil.forName(Value_map));
} catch (ClassNotFoundException ex) {
throw new SAXException(
MessageFormat.format(
resBundle.handleGetObject("xmlrch.errmap").toString(), ex.getMessage()));
}
break;
case MapTag:
// Added the handling for Map to take set the typeMap
rs.setTypeMap(typeMap);
break;
default:
break;
}
if (getNullValue()) {
setPropertyValue(null);
setNullValue(false);
} else {
setPropertyValue(propertyValue);
}
} catch (SQLException ex) {
throw new SAXException(ex.getMessage());
}
// propertyValue need to be reset to an empty string
propertyValue = "";
setTag(-1);
break;
case METADATA:
if (name.equals("metadata")) {
try {
rs.setMetaData(md);
state = INITIAL;
} catch (SQLException ex) {
throw new SAXException(
MessageFormat.format(
resBundle.handleGetObject("xmlrch.errmetadata").toString(), ex.getMessage()));
}
} else {
try {
if (getNullValue()) {
setMetaDataValue(null);
setNullValue(false);
} else {
setMetaDataValue(metaDataValue);
}
} catch (SQLException ex) {
throw new SAXException(
MessageFormat.format(
resBundle.handleGetObject("xmlrch.errmetadata").toString(), ex.getMessage()));
}
// metaDataValue needs to be reset to an empty string
metaDataValue = "";
}
setTag(-1);
break;
case DATA:
if (name.equals("data")) {
state = INITIAL;
return;
}
if (dataMap.get(name) == null) {
tag = NullTag;
} else {
tag = dataMap.get(name);
}
switch (tag) {
case ColTag:
try {
idx++;
if (getNullValue()) {
insertValue(null);
setNullValue(false);
} else {
insertValue(tempStr);
}
// columnValue now need to be reset to the empty string
columnValue = "";
} catch (SQLException ex) {
throw new SAXException(
MessageFormat.format(
resBundle.handleGetObject("xmlrch.errinsertval").toString(),
ex.getMessage()));
}
break;
case RowTag:
try {
rs.insertRow();
rs.moveToCurrentRow();
rs.next();
// Making this as the original to turn off the
// rowInserted flagging
rs.setOriginalRow();
applyUpdates();
} catch (SQLException ex) {
throw new SAXException(
MessageFormat.format(
resBundle.handleGetObject("xmlrch.errconstr").toString(), ex.getMessage()));
}
break;
case DelTag:
try {
rs.insertRow();
rs.moveToCurrentRow();
rs.next();
rs.setOriginalRow();
applyUpdates();
rs.deleteRow();
} catch (SQLException ex) {
throw new SAXException(
MessageFormat.format(
resBundle.handleGetObject("xmlrch.errdel").toString(), ex.getMessage()));
}
break;
case InsTag:
try {
rs.insertRow();
rs.moveToCurrentRow();
rs.next();
applyUpdates();
} catch (SQLException ex) {
throw new SAXException(
MessageFormat.format(
resBundle.handleGetObject("xmlrch.errinsert").toString(), ex.getMessage()));
}
break;
case InsDelTag:
try {
rs.insertRow();
rs.moveToCurrentRow();
rs.next();
rs.setOriginalRow();
applyUpdates();
} catch (SQLException ex) {
throw new SAXException(
MessageFormat.format(
resBundle.handleGetObject("xmlrch.errinsdel").toString(), ex.getMessage()));
}
break;
case UpdTag:
try {
if (getNullValue()) {
insertValue(null);
setNullValue(false);
} else if (getEmptyStringValue()) {
insertValue("");
setEmptyStringValue(false);
} else {
updates.add(upd);
}
} catch (SQLException ex) {
throw new SAXException(
MessageFormat.format(
resBundle.handleGetObject("xmlrch.errupdate").toString(), ex.getMessage()));
}
break;
default:
break;
}
default:
break;
}
}
