public StreamSink createStreamSink(ServiceContext context, Flow flow) {
List<String> commandList = new ArrayList<String>();
String cmd = command.evaluateString(context, flow);
commandList.add(cmd);
for (int i = 0; i < commandArgs.length; ++i) {
String arg = commandArgs[i].evaluateString(context, flow);
commandList.add(arg);
}
ProcessBuilder processBuilder = new ProcessBuilder(commandList);
Map<String, String> environment = processBuilder.environment();
for (int i = 0; i < envVariableFactories.length; ++i) {
EnvVariable envVariable = envVariableFactories[i].createEnvVariable(context, flow);
environment.put(envVariable.getName(), envVariable.getValue());
}
String directory = dirResolver.evaluateAsString(flow.getParameters(), flow.getRecord());
if (directory.length() > 0) {
File file = new File(directory);
processBuilder.directory(file);
}
StreamSink streamSink = new CommandSink(processBuilder, charset);
return streamSink;
}
public FlatRecordFieldFactory assemble(ConfigurationContext context) {
if (fieldName.isEmpty()) {
String message =
MessageFormatter.getInstance()
.getMessage(
ServingXmlMessages.COMPONENT_ATTRIBUTE_REQUIRED,
context.getElement().getTagName(),
"name");
throw new ServingXmlException(message);
}
if (digitCount <= 0) {
String message =
MessageFormatter.getInstance()
.getMessage(
ServingXmlMessages.COMPONENT_ATTRIBUTE_REQUIRED,
context.getElement().getTagName(),
"digitCount");
throw new ServingXmlException(message);
}
if (width <= 0) {
width = PackedDecimal.calculatePackedSize(digitCount);
}
FlatFileOptionsFactory flatFileOptionsFactory = assembleFlatFileOptions(context);
if (label == null) {
if (fieldLabel != null) {
SubstitutionExpr subExpr =
SubstitutionExpr.parseString(context.getQnameContext(), fieldLabel);
ValueEvaluator valueEvaluator = new SubstitutionExprValueEvaluator(subExpr);
label = new Label(valueEvaluator);
} else {
label = new Label(fieldName.getLocalName());
}
}
FlatRecordFieldFactory fieldTypeFactory =
new PackedDecimalFieldFactory(
fieldName,
label,
start,
width,
digitCount,
decimalPlaces,
defaultValue,
flatFileOptionsFactory);
return fieldTypeFactory;
}