/**
* Executes RFC_READ_TABLE with the current set of selected fields but without selection criteria.
*
* @return the contents read
* @throws JCoException
*/
public ITableContents read() throws JCoException {
JCoFunction readFunction = template.getFunction();
readFunction.getImportParameterList().setValue("QUERY_TABLE", tableName); // $NON-NLS-1$
readFunction.getTableParameterList().getTable("OPTIONS").clear(); // $NON-NLS-1$
setFieldList(readFunction);
readFunction.execute(destination);
return new TableContents(
tableName,
readFunction.getTableParameterList().getTable("FIELDS"), // $NON-NLS-1$
readFunction.getTableParameterList().getTable("DATA")); // $NON-NLS-1$
}
/**
* Retrieves the table structure from the SAP R/3 system.
*
* @throws JCoException
*/
private void loadStructure() throws JCoException {
// call RFC_READ_TABLE without requesting any data
JCoFunction readFieldListFunction = template.getFunction();
readFieldListFunction
.getImportParameterList()
.setValue("QUERY_TABLE", tableName); // $NON-NLS-1$
readFieldListFunction.getImportParameterList().setValue("NO_DATA", tableName); // $NON-NLS-1$
readFieldListFunction.execute(destination);
structure =
new TableStructure(
tableName,
readFieldListFunction.getTableParameterList().getTable("FIELDS")); // $NON-NLS-1$
}
/**
* Executes RFC_READ_TABLE with a set of selection criteria specified as strings.
*
* @param selectionCriteria
* @return the contents read
* @throws JCoException
*/
public ITableContents read(String... selectionCriteria) throws JCoException {
JCoFunction readFunction = template.getFunction();
readFunction.getImportParameterList().setValue("QUERY_TABLE", tableName); // $NON-NLS-1$
JCoTable options = readFunction.getTableParameterList().getTable("OPTIONS"); // $NON-NLS-1$
options.clear();
if (selectionCriteria != null) {
for (final String criterion : selectionCriteria) {
if (criterion.length() > 72) {
throw new IllegalArgumentException(Messages.TableReader_SelectionCriteriaTooLong);
}
options.appendRow();
options.setValue("TEXT", criterion); // $NON-NLS-1$
}
}
setFieldList(readFunction);
readFunction.execute(destination);
return new TableContents(
tableName,
readFunction.getTableParameterList().getTable("FIELDS"), // $NON-NLS-1$
readFunction.getTableParameterList().getTable("DATA")); // $NON-NLS-1$
}
public void run(ProcedureRunner runner) throws Exception {
CompositeMap context = runner.getContext();
logger = LoggingContext.getLogger(context, LOGGING_TOPIC);
logger.config("jco-invoke");
logger.config("===================================");
logger.log(Level.CONFIG, "config:{0}", new Object[] {this});
ServiceInstance service = (ServiceInstance) ServiceInstance.getInstance(context.getRoot());
// HttpServiceInstance service = (HttpServiceInstance) HttpServiceInstance
// .getInstance(context.getRoot());
CompositeMap target = null;
CompositeMap model = null;
if (service != null) model = service.getServiceContext().getModel();
else model = context.getRoot().getChild("model");
if (model == null) model = context.getRoot().createChild("model");
if (return_target != null) {
String t = TextParser.parse(return_target, context);
target = (CompositeMap) model.getObject(t);
if (target == null) target = model.createChildByTag(t);
}
JCoDestination destination = sapConfig.getJCoDestination(sid);
String functionName = function;
JCoFunctionTemplate ftemplate = destination.getRepository().getFunctionTemplate(functionName);
logger.info("function template:" + functionName);
if (ftemplate == null) {
logger.log(Level.SEVERE, "Function '" + function + "' not found in SAP system.");
throw new IllegalArgumentException("Function '" + function + "' not found in SAP system.");
}
// Create a function from the template
JCoFunction function = ftemplate.getFunction();
JCoParameterList input = function.getImportParameterList();
JCoParameterList output = function.getExportParameterList();
if (parameters != null)
for (int i = 0; i < parameters.length; i++) {
Parameter param = parameters[i];
if (param.Return_field == null) {
Object o =
param.Source_field == null ? param.Value : context.getObject(param.Source_field);
String value = o == null ? "" : o.toString();
input.setValue(param.Name, value);
logger.log(Level.CONFIG, "parameter {0} -> {1}", new Object[] {param.Name, value});
}
}
if (structures != null) {
for (int i = 0; i < structures.length; i++) {
Structure structure = structures[i];
structure.setLogger(logger);
if (structure.isImport()) {
JCoStructure stc = structure.getJCOStructure(input);
structure.fillJCOStructure(stc, context);
input.setValue(structure.Name, stc);
}
}
}
// Set import table
if (tables != null) {
JCoParameterList list = function.getTableParameterList();
for (int i = 0; i < tables.length; i++) {
Table table = tables[i];
table.setLogger(logger);
if (table.isImport()) {
JCoTable tbl = table.getJCOTable(list);
Object o = context.getObject(table.Source_field);
logger.config(
"transfer import table " + table.Name + " from '" + table.Source_field + "':" + o);
if (o instanceof CompositeMap) table.fillJCOTable(tbl, (CompositeMap) context);
}
}
}
// Call the remote system and retrieve return value
logger.config("call function " + function);
function.execute(destination);
if (parameters != null) {
for (int i = 0; i < parameters.length; i++) {
Parameter param = parameters[i];
if (param.Return_field != null) {
if (target == null)
throw new ConfigurationError(
"<jco-invoke>:must set 'return_target' attribute if there is return field");
String vl = output.getString(param.Name);
if (vl == null && !param.Nullable)
throw new IllegalArgumentException(
"jco-invoke: return field " + param.Name + " is null");
String f = TextParser.parse(param.Return_field, context);
target.putObject(f, vl);
logger.config("return: " + param.Name + "=" + vl + " -> " + f);
}
}
}
if (structures != null) {
for (int i = 0; i < structures.length; i++) {
Structure structure = structures[i];
structure.setLogger(logger);
if (structure.isImport()) continue;
if (structure.Target == null)
throw new ConfigurationError(
"Must set 'target' attribute for Structures " + structure.Name);
JCoStructure stc = structure.getJCOStructure(output);
CompositeMap result = (CompositeMap) context.getObject(structure.Target);
if (result == null) result = context.createChildByTag(structure.Target);
structure.fillCompositeMap(stc, result);
}
}
// Get export tables
if (tables != null) {
JCoParameterList list = function.getTableParameterList();
if (list == null)
throw new IllegalArgumentException("Function '" + function + "' doesn't return tables");
for (int i = 0; i < tables.length; i++) {
Table table = tables[i];
if (table.isImport()) continue;
if (table.Target == null)
throw new ConfigurationError("Must set 'target' attribute for table " + table.Name);
table.setLogger(logger);
JCoTable records = table.getJCOTable(list);
// Fetch as CompositeMap
CompositeMap result = (CompositeMap) context.getObject(table.Target);
if (result == null) result = context.createChildByTag(table.Target);
table.fillCompositeMap(records, result);
int rc = 0;
if (result.getChilds() != null) rc = result.getChilds().size();
logger.config(
"loading export table "
+ table.Name
+ " into path '"
+ table.Target
+ "', total "
+ rc
+ " record(s)");
}
}
}