/**
* Modifies a record in the Database Server using the provided modify request.
*
* @param request The modify request.
* @return The result of the operation.
* @throws ErrorResultException If the result code indicates that the request failed for some
* reason.
* @throws SQLException If the SQL query has an invalid format.
* @throws NullPointerException If {@code request} was {@code null}, or if a corresponding mapping
* value could not be found in the mapping component.
*/
@Override
public Result modify(final ModifyRequest request) {
Result r;
try {
// Split up the DN the of the request.
final DN DN = request.getName();
final RDN rDN = DN.rdn();
final String filterAttributeName = rDN.getFirstAVA().getAttributeType().getNameOrOID();
final String filterAttributeValue = rDN.getFirstAVA().getAttributeValue().toString();
final RDN OU = DN.parent(1).rdn();
final String OUName = OU.getFirstAVA().getAttributeValue().toString();
final String baseDN = DN.parent(2).toString();
// Search mapping for the corresponding table and column names.
final String tableName = jdbcm.getTableNameFromMapping(baseDN, OUName);
if (tableName == null)
throw new NullPointerException(
"JDBC Error: Could not find matching table name for OU: '"
+ OUName
+ "' in DN: '"
+ baseDN
+ "'. Please check if mapping was succesful.");
final String columnName =
jdbcm.getColumnNameFromMapping(tableName, baseDN, OUName, filterAttributeName);
if (columnName == null)
throw new NullPointerException(
"JDBC Error: Could not find matching column name for attribute: '"
+ filterAttributeName
+ "'. Please check if mapping was succesful.");
// Get attribute and modificationtype for each modification.
// Search mapping for the corresponding column name for the modification attribute.
final List<Modification> modificationList = request.getModifications();
final ListIterator<Modification> listIter = modificationList.listIterator();
String modificationString = "";
while (listIter.hasNext()) {
final Modification modification = listIter.next();
final ModificationType modificationType = modification.getModificationType();
final Attribute modificationAttribute = modification.getAttribute();
final String modificationAttributeName =
modificationAttribute.getAttributeDescription().toString();
final String modificationColumnName =
jdbcm.getColumnNameFromMapping(tableName, baseDN, OUName, modificationAttributeName);
if (modificationColumnName == null)
throw new NullPointerException(
"JDBC Error: Could not find matching column name for attribute: '"
+ modificationAttributeName
+ "'. Please check if mapping was succesful.");
String modificationAttributeValue = "";
if (modificationType == ModificationType.ADD) {
final Iterator<ByteString> iter = modificationAttribute.iterator();
int counter = 0;
while (iter.hasNext()) {
if (counter > 0) modificationAttributeValue = modificationAttributeValue.concat(", ");
modificationAttributeValue = modificationAttributeValue.concat(iter.next().toString());
counter++;
}
final Object classType = jdbcm.getTableColumnDataType(tableName, modificationColumnName);
if (classType == Integer.class)
modificationAttributeValue =
"(CASE WHEN ("
+ modificationColumnName
+ " = 0) THEN ' "
+ modificationAttributeValue
+ "' ELSE concat("
+ modificationColumnName
+ ", ', "
+ modificationAttributeValue
+ "') END)";
else
modificationAttributeValue =
"(CASE WHEN ("
+ modificationColumnName
+ " = 'Default Value') THEN ' "
+ modificationAttributeValue
+ "' ELSE concat("
+ modificationColumnName
+ ", ', "
+ modificationAttributeValue
+ "') END)";
} else if (modificationType == ModificationType.REPLACE) {
final Iterator<ByteString> iter = modificationAttribute.iterator();
while (iter.hasNext()) {
modificationAttributeValue = "'" + iter.next().toString() + "'";
}
} else {
final boolean nullable = jdbcm.getTableColumnNullable(tableName, modificationColumnName);
if (nullable == false)
throw new SQLException("Cannot delete data from not-nullable column.");
final Object classType = jdbcm.getTableColumnDataType(tableName, modificationColumnName);
if (classType == Integer.class)
modificationAttributeValue = "'" + Integer.toString(0) + "'";
else modificationAttributeValue = "'Default Value'";
}
modificationString =
modificationString.concat(
modificationColumnName + "=" + modificationAttributeValue + ", ");
}
modificationString = modificationString.substring(0, modificationString.length() - 2);
// Build the SQL query.
final Statement st = connection.createStatement();
final String sql =
"UPDATE "
+ tableName
+ " SET "
+ modificationString
+ " WHERE "
+ columnName
+ "='"
+ filterAttributeValue
+ "'";
st.executeUpdate(sql);
r = Responses.newResult(ResultCode.SUCCESS);
} catch (SQLException e) {
System.out.println(e.toString());
r = Responses.newResult(ResultCode.OPERATIONS_ERROR);
r.setCause(e);
} catch (NullPointerException e) {
System.out.println(e.toString());
r = Responses.newCompareResult(ResultCode.OPERATIONS_ERROR);
r.setCause(e);
}
return r;
}
/**
* Converts the LDAP filter to an SQL filter.
*
* @param filter The filter of the search request.
* @param baseDN The top domain name.
* @param OUName The name of the organizational unit.
* @return The converted SQL filter.
* @throws NullPointerException If the result code indicates that the request failed for some
* reason.
* @throws SQLException If the SQL query has an invalid format.
* @throws NullPointerException If {@code filter}, {@code baseDN} or {@code OUName} was {@code
* null}, or if a corresponding mapping value could not be found in the mapping component.
*/
private String convertSearchFilter(final Filter filter, final String baseDN, String OUName) {
try {
String filterString = filter.toString();
String convertedFilterString = "";
if (filterString.isEmpty() || filterString.contains("objectClass=*")) return "";
int stringIndex = 0;
int subStringCount = 0;
// Set the amount of subfilters if operators are present.
while (filterString.charAt(stringIndex) == '(') {
if (filterString.charAt(stringIndex + 2) == '(') {
subStringCount++;
}
stringIndex += 2;
}
if (subStringCount == 0) {
// Replace escape characters.
String subString = filterString.substring(1, filterString.length() - 1);
subString = subString.replace("\\02a", "*");
subString = subString.replace("\\028", "(");
subString = subString.replace("\\029", ")");
String[] subStringSplitter;
if (subString.contains("<=")) subStringSplitter = subString.split("<=");
else if (subString.contains(">=")) subStringSplitter = subString.split(">=");
else subStringSplitter = subString.split("=");
final String filterAttributeName = subStringSplitter[0];
String filterColumnName = null;
;
Object columnDataType = null;
// Search mapping for the corresponding table and column names.
if (OUName.isEmpty()) {
final List<String> OUList = jdbcm.getOrganizationalUnits(baseDN);
for (Iterator<String> iter = OUList.iterator(); iter.hasNext(); ) {
OUName = iter.next();
final String tableName = jdbcm.getTableNameFromMapping(baseDN, OUName);
if (tableName == null) continue;
filterColumnName =
jdbcm.getColumnNameFromMapping(tableName, baseDN, OUName, filterAttributeName);
if (filterColumnName == null) continue;
else columnDataType = jdbcm.getTableColumnDataType(tableName, filterColumnName);
break;
}
if (filterColumnName == null)
throw new NullPointerException(
"JDBC Error: Could not find matching column name for attribute: '"
+ filterAttributeName
+ "'. Please check if mapping was succesful.");
} else {
final String tableName = jdbcm.getTableNameFromMapping(baseDN, OUName);
if (tableName == null)
throw new NullPointerException(
"JDBC Error: Could not find matching table name for OU: '"
+ OUName
+ "' in DN: '"
+ baseDN
+ "'. Please check if mapping was succesful.");
filterColumnName =
jdbcm.getColumnNameFromMapping(tableName, baseDN, OUName, filterAttributeName);
if (filterColumnName == null)
throw new NullPointerException(
"JDBC Error: Could not find matching column name for attribute: '"
+ filterAttributeName
+ "'. Please check if mapping was succesful.");
columnDataType = jdbcm.getTableColumnDataType(tableName, filterColumnName);
}
// Set values to right format.
if (columnDataType != Integer.class) {
String filterAttributeValue = subStringSplitter[1];
String filterColumnValue = "'" + filterAttributeValue + "'";
filterAttributeValue = filterAttributeValue.replace("*", "\\*");
filterAttributeValue = filterAttributeValue.replace("(", "\\(");
filterAttributeValue = filterAttributeValue.replace(")", "\\)");
if (filterColumnValue.length() > 3 && filterColumnValue.contains("*")) {
filterColumnValue = filterColumnValue.replace("*", "%");
subString = subString.replace("=", " like ");
}
subString = subString.replaceFirst(filterAttributeValue, filterColumnValue);
}
subString = subString.replaceFirst(filterAttributeName, filterColumnName);
convertedFilterString = convertedFilterString.concat(subString);
} else {
int subStringStartIndex = 2 * subStringCount;
int subStringEndIndex = 0;
final String[] subStrings = new String[subStringCount];
final char[] operationChars = new char[subStringCount];
// Separate operation characters and subfilters.
while (subStringStartIndex > 0) {
final char operationChar = filterString.charAt(subStringStartIndex - 1);
subStringEndIndex = filterString.indexOf("))") + 1;
String subString = filterString.substring(subStringStartIndex, subStringEndIndex);
subString = subString.replace("()", "");
operationChars[subStringCount - subStringStartIndex / 2] = operationChar;
subStrings[subStringCount - subStringStartIndex / 2] = subString;
final String replaceString =
filterString.substring(subStringStartIndex - 1, subStringEndIndex);
filterString = filterString.replace(replaceString, "");
subStringStartIndex -= 2;
}
// Handle the not operator.
for (int i = 0; i < subStringCount; i++) {
final char operationChar = operationChars[i];
if (operationChar == '!') {
String subString = subStrings[i];
if (subString.isEmpty()) {
subString = subStrings[i - 1];
subString = subString.replace(">=", ">");
subString = subString.replace("<=", "<");
subString = subString.replace("=", "!=");
subString = subString.replace(">", ">=");
subString = subString.replace("<", "<=");
subStrings[i - 1] = subString;
} else {
subString = subString.replace(">=", ">");
subString = subString.replace("<=", "<");
subString = subString.replace("=", "!=");
subString = subString.replace(">", ">=");
subString = subString.replace("<", "<=");
subStrings[i] = subString;
}
}
}
boolean multipleSubStrings = false;
if (subStringCount > 1) multipleSubStrings = true;
// Convert each subfilter with corresponding operator.
for (int i = 0; i < subStringCount; i++) {
final char operationChar = operationChars[i];
String operationString = "";
if (operationChar == '&') {
operationString = " AND ";
} else if (operationChar == '|') {
operationString = " OR ";
}
String subString = subStrings[i];
if (subString.isEmpty()) continue;
subString = subString.substring(1, subString.length() - 1);
String[] subStringSplitter = subString.split("\\)\\(");
for (int j = 0; j < subStringSplitter.length; j++) {
String subStringFilter = subStringSplitter[j];
final String[] subStringFilterSplitter;
subStringFilter = subStringFilter.replace("\\02a", "*");
subStringFilter = subStringFilter.replace("\\028", "(");
subStringFilter = subStringFilter.replace("\\029", ")");
if (subStringFilter.contains("!="))
subStringFilterSplitter = subStringFilter.split("!=");
else if (subStringFilter.contains("<="))
subStringFilterSplitter = subStringFilter.split("<=");
else if (subStringFilter.contains(">="))
subStringFilterSplitter = subStringFilter.split(">=");
else subStringFilterSplitter = subStringFilter.split("=");
final String filterAttributeName = subStringFilterSplitter[0];
String filterColumnName = null;
;
Object columnDataType = null;
// Search mapping for the corresponding column name for each filter attribute.
if (OUName.isEmpty()) {
final List<String> OUList = jdbcm.getOrganizationalUnits(baseDN);
for (Iterator<String> iter = OUList.iterator(); iter.hasNext(); ) {
OUName = iter.next();
final String tableName = jdbcm.getTableNameFromMapping(baseDN, OUName);
if (tableName == null) continue;
filterColumnName =
jdbcm.getColumnNameFromMapping(tableName, baseDN, OUName, filterAttributeName);
if (filterColumnName == null) continue;
else columnDataType = jdbcm.getTableColumnDataType(tableName, filterColumnName);
break;
}
if (filterColumnName == null)
throw new NullPointerException(
"JDBC Error: Could not find matching column name for attribute: '"
+ filterAttributeName
+ "'. Please check if mapping was succesful.");
} else {
final String tableName = jdbcm.getTableNameFromMapping(baseDN, OUName);
if (tableName == null)
throw new NullPointerException(
"JDBC Error: Could not find matching table name for OU: '"
+ OUName
+ "' in DN: '"
+ baseDN
+ "'. Please check if mapping was succesful.");
filterColumnName =
jdbcm.getColumnNameFromMapping(tableName, baseDN, OUName, filterAttributeName);
if (filterColumnName == null)
throw new NullPointerException(
"JDBC Error: Could not find matching column name for attribute: '"
+ filterAttributeName
+ "'. Please check if mapping was succesful.");
columnDataType = jdbcm.getTableColumnDataType(tableName, filterColumnName);
}
// Handle the like operator.
if (columnDataType != Integer.class) {
String filterAttributeValue = subStringFilterSplitter[1];
String filterColumnValue = "'" + filterAttributeValue + "'";
filterAttributeValue = filterAttributeValue.replace("*", "\\*");
filterAttributeValue = filterAttributeValue.replace("(", "\\(");
filterAttributeValue = filterAttributeValue.replace(")", "\\)");
if (filterColumnValue.length() > 3 && filterColumnValue.contains("*")) {
filterColumnValue = filterColumnValue.replace("*", "%");
if (subStringFilter.contains("!="))
subStringFilter = subStringFilter.replace("!=", " not like ");
else subStringFilter = subStringFilter.replace("=", " like ");
}
subStringFilter =
subStringFilter.replaceFirst(filterAttributeValue, filterColumnValue);
}
subStringFilter = subStringFilter.replaceFirst(filterAttributeName, filterColumnName);
if (j != 0 || i != 0)
convertedFilterString = convertedFilterString.concat(operationString);
convertedFilterString = convertedFilterString.concat(subStringFilter);
}
if (multipleSubStrings && i < subStringCount - 1)
convertedFilterString = "(" + convertedFilterString + ")";
}
}
return convertedFilterString;
} catch (NullPointerException e) {
return "Err:" + e.getMessage();
}
}
/**
* Adds a record to the Database Server using the provided add request.
*
* @param request The add request.
* @return The result of the operation.
* @throws ErrorResultException If the result code indicates that the request failed for some
* reason.
* @throws SQLException If the SQL query has an invalid format.
* @throws NullPointerException If {@code request} was {@code null}, or if a corresponding mapping
* value could not be found in the mapping component.
*/
@Override
public Result add(final AddRequest request) throws ErrorResultException {
Result r;
try {
// Split up the DN the of the request.
final DN DN = request.getName();
final RDN rDN = DN.rdn();
final String rDNName = rDN.getFirstAVA().getAttributeType().getNameOrOID();
final String rDNValue = rDN.getFirstAVA().getAttributeValue().toString();
final RDN OU = DN.parent().rdn();
final String organizationalUnitName = OU.getFirstAVA().getAttributeValue().toString();
final String baseDN = DN.parent(2).toString();
// Search mapping for the corresponding table and column names.
final String tableName = jdbcm.getTableNameFromMapping(baseDN, organizationalUnitName);
if (tableName == null)
throw new NullPointerException(
"JDBC Error: Could not find matching table name for OU: '"
+ organizationalUnitName
+ "' in DN: '"
+ baseDN
+ "'. Please check if mapping was succesful.");
final String rDNColumnName =
jdbcm.getColumnNameFromMapping(tableName, baseDN, organizationalUnitName, rDNName);
if (rDNColumnName == null)
throw new NullPointerException(
"JDBC Error: Could not find matching column name for attribute: '"
+ rDNName
+ "'. Please check if mapping was succesful.");
final Map<String, Object> columnValuesMap = new HashMap<String, Object>();
final Iterable<Attribute> attributesCollection = request.getAllAttributes();
final Iterator<Attribute> attributeIter = attributesCollection.iterator();
// Search mapping for the corresponding column name for each attribute.
while (attributeIter.hasNext()) {
final Attribute att = attributeIter.next();
final Iterator<ByteString> valueIter = att.iterator();
final String attributeName = att.getAttributeDescriptionAsString();
if (attributeName == "objectClass") continue;
final String columnName =
jdbcm.getColumnNameFromMapping(
tableName, baseDN, organizationalUnitName, attributeName);
if (columnName == null)
throw new NullPointerException(
"JDBC Error: Could not find matching column name for attribute: '"
+ attributeName
+ "'. Please check if mapping was succesful.");
String columnValue = "";
while (valueIter.hasNext()) {
columnValue = columnValue.concat(valueIter.next().toString());
}
columnValuesMap.put(columnName, columnValue);
}
// Build the SQL values String.
final ArrayList<String> columnList = jdbcm.getTableColumns(tableName);
String columnNamesString = " (" + rDNColumnName;
String columnValuesString = " ('" + rDNValue + "'";
for (int i = 0; i < columnList.size(); i++) {
final String columnName = columnList.get(i);
if (columnNamesString.contains(columnName)) continue;
final Object columnDataType = jdbcm.getTableColumnDataType(tableName, columnName);
Object columnValue = columnValuesMap.get(columnName);
if (columnValue == null) {
boolean columnNullable = jdbcm.getTableColumnNullable(tableName, columnName);
if (columnNullable) continue;
if (columnDataType.equals(Integer.class)) columnValue = "0";
else columnValue = "Default Value";
}
if (columnDataType.equals(Integer.class))
columnValue = Integer.parseInt(columnValue.toString());
columnNamesString = columnNamesString.concat(", " + columnName);
columnValuesString = columnValuesString.concat(", '" + columnValue + "'");
}
columnNamesString = columnNamesString.concat(")");
columnValuesString = columnValuesString.concat(")");
// Build the SQL query.
final Statement st = connection.createStatement();
final String sql =
"INSERT INTO " + tableName + columnNamesString + " VALUES" + columnValuesString;
st.executeUpdate(sql);
r = Responses.newResult(ResultCode.SUCCESS);
} catch (SQLException e) {
System.out.println(e.toString());
r = Responses.newResult(ResultCode.OPERATIONS_ERROR);
r.setCause(e);
} catch (NullPointerException e) {
System.out.println(e.toString());
r = Responses.newResult(ResultCode.OPERATIONS_ERROR);
r.setCause(e);
}
return r;
}
