/**
* Configure the default record mapper.
*
* @return the default implementation of record mapper
* @throws BatchConfigurationException if the target type class is not found
*/
private RecordMapper configureDefaultRecordMapper() throws BatchConfigurationException {
RecordMapper recordMapper;
String recordClassName = configurationProperties.getProperty(BatchConstants.INPUT_RECORD_CLASS);
if (recordClassName == null || recordClassName.length() == 0) {
try {
Class recordProcessorClass = Class.forName(recordProcessor.getClass().getName());
Method[] declaredMethods = recordProcessorClass.getDeclaredMethods();
for (Method declaredMethod : declaredMethods) {
if (declaredMethod.getName().equals("processRecord")) {
recordClassName = declaredMethod.getParameterTypes()[0].getName();
break;
}
}
} catch (ClassNotFoundException e) {
String error =
"Configuration failed : unable to get record class name from registered record processor implementation.";
logger.severe(error);
throw new BatchConfigurationException(error, e);
}
}
String[] headers;
String headersProperty =
configurationProperties.getProperty(BatchConstants.INPUT_RECORD_HEADERS);
if (headersProperty
== null) { // if no headers specified, use field names declared in the header record
String headerRecord = recordReader.getHeaderRecord();
Record record =
recordParser.parseRecord(
headerRecord,
0); // use the record parser to parse the header record using the right delimiter
List<Field> fields = record.getFields();
headers = new String[fields.size()];
for (int i = 0; i < fields.size(); i++) {
headers[i] = fields.get(i).getContent();
}
} else { // headers specified, split the comma separated list
headers = headersProperty.split(",");
}
try {
recordMapper = new DefaultRecordMapperImpl(recordClassName, headers, typeConverters);
} catch (ClassNotFoundException e) {
String error = "Configuration failed : Class " + recordClassName + " not found.";
logger.severe(error);
throw new BatchConfigurationException(error, e);
}
return recordMapper;
}
/**
* Configure CB4J record parser.
*
* @throws BatchConfigurationException thrown if record parser is not correctly configured
*/
private void configureRecordParser() throws BatchConfigurationException {
// read record type property and set default value if invalid input
String recordTypeProperty =
configurationProperties.getProperty(BatchConstants.INPUT_RECORD_TYPE);
String recordType;
if (recordTypeProperty == null || recordTypeProperty.length() == 0) {
recordType = BatchConstants.DEFAULT_RECORD_TYPE;
logger.info(
"Record type property not specified, records will be considered as delimiter-separated values");
} else if (!RecordType.DSV.toString().equalsIgnoreCase(recordTypeProperty)
&& !RecordType.FLR.toString().equalsIgnoreCase(recordTypeProperty)) {
recordType = BatchConstants.DEFAULT_RECORD_TYPE;
logger.warning(
"Record type property '"
+ recordTypeProperty
+ "' is invalid, records will be considered as delimiter-separated values");
} else {
recordType = recordTypeProperty;
}
// fixed length record configuration
if (RecordType.FLR.toString().equalsIgnoreCase(recordType)) {
String fieldsLengthProperties =
configurationProperties.getProperty(BatchConstants.INPUT_FIELD_LENGTHS);
if (fieldsLengthProperties == null || fieldsLengthProperties.length() == 0) {
String error =
"Configuration failed : when using fixed length records, fields length values property '"
+ BatchConstants.INPUT_FIELD_LENGTHS
+ "' is mandatory but was not specified.";
logger.severe(error);
throw new BatchConfigurationException(error);
} else {
// parse fields length property and extract numeric values
StringTokenizer stringTokenizer = new StringTokenizer(fieldsLengthProperties, ",");
int[] fieldsLength = new int[stringTokenizer.countTokens()];
int index = 0;
while (stringTokenizer.hasMoreTokens()) {
String length = stringTokenizer.nextToken();
try {
fieldsLength[index] = Integer.parseInt(length);
index++;
} catch (NumberFormatException e) {
String error =
"Configuration failed : field length '"
+ length
+ "' in property "
+ BatchConstants.INPUT_FIELD_LENGTHS
+ "="
+ fieldsLengthProperties
+ " is not numeric.";
logger.severe(error);
throw new BatchConfigurationException(error);
}
}
recordParser = new FlrRecordParserImpl(fieldsLength);
}
} else { // delimited values configuration
String recordSizeProperty =
configurationProperties.getProperty(BatchConstants.INPUT_RECORD_SIZE);
try {
String fieldsDelimiter =
configurationProperties.getProperty(BatchConstants.INPUT_FIELD_DELIMITER);
if (fieldsDelimiter == null || fieldsDelimiter.length() == 0) {
fieldsDelimiter = BatchConstants.DEFAULT_FIELD_DELIMITER;
logger.info("No field delimiter specified, using default : '" + fieldsDelimiter + "'");
}
String trimWhitespacesProperty =
configurationProperties.getProperty(BatchConstants.INPUT_FIELD_TRIM);
boolean trimWhitespaces;
if (trimWhitespacesProperty != null) {
trimWhitespaces = Boolean.valueOf(trimWhitespacesProperty);
} else {
trimWhitespaces = BatchConstants.DEFAULT_FIELD_TRIM;
logger.info("Trim whitespaces property not specified, default to " + trimWhitespaces);
}
String dataQualifierCharacterProperty =
configurationProperties.getProperty(BatchConstants.INPUT_FIELD_QUALIFIER_CHAR);
String dataQualifierCharacter = BatchConstants.DEFAULT_FIELD_QUALIFIER_CHAR;
if (dataQualifierCharacterProperty != null && dataQualifierCharacterProperty.length() > 0) {
dataQualifierCharacter = dataQualifierCharacterProperty;
} else {
logger.info(
"Data qualifier character not specified, default to " + dataQualifierCharacter);
}
recordParser =
new DsvRecordParserImpl(fieldsDelimiter, trimWhitespaces, dataQualifierCharacter);
if (recordSizeProperty == null || recordSizeProperty.length() == 0) {
logger.info(
"Record size property not specified, it will be calculated from the header record");
String headerRecord = recordReader.getHeaderRecord();
Record record =
recordParser.parseRecord(
headerRecord,
0); // use the record parser to parse the header record using the right delimiter
recordSizeProperty = String.valueOf(record.getFields().size());
}
int recordSize = Integer.parseInt(recordSizeProperty);
recordParser =
new DsvRecordParserImpl(
recordSize, fieldsDelimiter, trimWhitespaces, dataQualifierCharacter);
logger.info("Record size : " + recordSize);
logger.info("Fields delimiter : '" + fieldsDelimiter + "'");
logger.info("Data qualifier character : '" + dataQualifierCharacter + "'");
} catch (NumberFormatException e) {
String error = "Record size property is not recognized as a number : " + recordSizeProperty;
logger.severe(error);
throw new BatchConfigurationException(error);
}
}
}