public Mapping getMapping(boolean checkForMissingTableAndMapping) {
String tableName = "";
if (!Const.isEmpty(m_existingTableNamesCombo.getText().trim())) {
tableName = m_existingTableNamesCombo.getText().trim();
if (tableName.indexOf('@') > 0) {
tableName = tableName.substring(0, tableName.indexOf('@'));
}
}
if (checkForMissingTableAndMapping
&& (Const.isEmpty(m_existingTableNamesCombo.getText().trim())
|| Const.isEmpty(tableName))) {
MessageDialog.openError(
m_shell,
Messages.getString("MappingDialog.Error.Title.MissingTableMappingName"),
Messages.getString("MappingDialog.Error.Message.MissingTableMappingName"));
return null;
}
// do we have any non-empty rows in the table?
if (m_fieldsView.nrNonEmpty() == 0) {
MessageDialog.openError(
m_shell,
Messages.getString("MappingDialog.Error.Title.NoFieldsDefined"),
Messages.getString("MappingDialog.Error.Message.NoFieldsDefined"));
return null;
}
// do we have a key defined in the table?
Mapping theMapping = new Mapping(tableName, m_existingMappingNamesCombo.getText().trim());
boolean keyDefined = false;
boolean moreThanOneKey = false;
List<String> missingFamilies = new ArrayList<String>();
List<String> missingColumnNames = new ArrayList<String>();
List<String> missingTypes = new ArrayList<String>();
int nrNonEmpty = m_fieldsView.nrNonEmpty();
// is the mapping a tuple mapping?
boolean isTupleMapping = false;
int tupleIdCount = 0;
if (nrNonEmpty == 5) {
for (int i = 0; i < nrNonEmpty; i++) {
if (m_fieldsView.getNonEmpty(i).getText(1).equals("KEY")
|| m_fieldsView.getNonEmpty(i).getText(1).equals("Family")
|| m_fieldsView.getNonEmpty(i).getText(1).equals("Column")
|| m_fieldsView.getNonEmpty(i).getText(1).equals("Value")
|| m_fieldsView.getNonEmpty(i).getText(1).equals("Timestamp")) {
tupleIdCount++;
}
}
}
/* if (nrNonEmpty == 5 && m_fieldsView.getNonEmpty(0).getText(1).equals("KEY") &&
m_fieldsView.getNonEmpty(1).getText(1).equals("Family") &&
m_fieldsView.getNonEmpty(2).getText(1).equals("Column") &&
m_fieldsView.getNonEmpty(3).getText(1).equals("Value") &&
m_fieldsView.getNonEmpty(4).getText(1).equals("Timestamp")) {
isTupleMapping = true;
theMapping.setTupleMapping(true);
} */
if (tupleIdCount == 5) {
isTupleMapping = true;
theMapping.setTupleMapping(true);
}
for (int i = 0; i < nrNonEmpty; i++) {
TableItem item = m_fieldsView.getNonEmpty(i);
boolean isKey = false;
String alias = null;
if (!Const.isEmpty(item.getText(1))) {
alias = item.getText(1).trim();
}
if (!Const.isEmpty(item.getText(2))) {
isKey = item.getText(2).trim().equalsIgnoreCase("Y");
if (isKey && keyDefined) {
// more than one key, break here
moreThanOneKey = true;
break;
}
if (isKey) {
keyDefined = true;
}
}
// String family = null;
String family = "";
if (!Const.isEmpty(item.getText(3))) {
family = item.getText(3);
} else {
if (!isKey && !isTupleMapping) {
missingFamilies.add(item.getText(0));
}
}
// String colName = null;
String colName = "";
if (!Const.isEmpty(item.getText(4))) {
colName = item.getText(4);
} else {
if (!isKey && !isTupleMapping) {
missingColumnNames.add(item.getText(0));
}
}
String type = null;
if (!Const.isEmpty(item.getText(5))) {
type = item.getText(5);
} else {
missingTypes.add(item.getText(0));
}
String indexedVals = null;
if (!Const.isEmpty(item.getText(6))) {
indexedVals = item.getText(6);
} /* else {
if (!isKey && type != null && type.equalsIgnoreCase("String")) {
missingIndexedValues.add(item.getText(0));
}
}*/
// only add if we have all data and its all correct
if (isKey && !moreThanOneKey) {
if (Const.isEmpty(alias)) {
// pop up an error dialog - key must have an alias because it does not
// belong to a column family or have a column name
MessageDialog.openError(
m_shell,
Messages.getString("MappingDialog.Error.Title.NoAliasForKey"),
Messages.getString("MappingDialog.Error.Message.NoAliasForKey"));
return null;
}
if (Const.isEmpty(type)) {
// pop up an error dialog - must have a type for the key
MessageDialog.openError(
m_shell,
Messages.getString("MappingDialog.Error.Title.NoTypeForKey"),
Messages.getString("MappingDialog.Error.Message.NoTypeForKey"));
return null;
}
if (moreThanOneKey) {
// popup an error and then return
MessageDialog.openError(
m_shell,
Messages.getString("MappingDialog.Error.Title.MoreThanOneKey"),
Messages.getString("MappingDialog.Error.Message.MoreThanOneKey"));
return null;
}
if (isTupleMapping) {
theMapping.setKeyName(alias);
theMapping.setTupleFamilies(family);
} else {
theMapping.setKeyName(alias);
}
try {
theMapping.setKeyTypeAsString(type);
} catch (Exception ex) {
}
} else {
// don't bother adding if there are any errors
if (missingFamilies.size() == 0
&& missingColumnNames.size() == 0
&& missingTypes.size() == 0) {
String combinedName = family + HBaseValueMeta.SEPARATOR + colName;
if (!Const.isEmpty(alias)) {
combinedName += (HBaseValueMeta.SEPARATOR + alias);
}
HBaseValueMeta vm = new HBaseValueMeta(combinedName, 0, -1, -1);
try {
vm.setHBaseTypeFromString(type);
} catch (IllegalArgumentException e) {
// TODO pop up an error dialog for this one
return null;
}
if (vm.isString() && indexedVals != null && indexedVals.length() > 0) {
Object[] vals = HBaseValueMeta.stringIndexListToObjects(indexedVals);
vm.setIndex(vals);
vm.setStorageType(ValueMetaInterface.STORAGE_TYPE_INDEXED);
}
try {
theMapping.addMappedColumn(vm, isTupleMapping);
} catch (Exception ex) {
// popup an error if this family:column is already in the mapping and
// then return.
MessageDialog.openError(
m_shell,
Messages.getString("MappingDialog.Error.Title.DuplicateColumn"),
Messages.getString("MappingDialog.Error.Message1.DuplicateColumn")
+ family
+ HBaseValueMeta.SEPARATOR
+ colName
+ Messages.getString("MappingDialog.Error.Message2.DuplicateColumn"));
ex.printStackTrace();
return null;
}
}
}
}
// now check for any errors in our Lists
if (!keyDefined) {
MessageDialog.openError(
m_shell,
Messages.getString("MappingDialog.Error.Title.NoKeyDefined"),
Messages.getString("MappingDialog.Error.Message.NoKeyDefined"));
return null;
}
if (missingFamilies.size() > 0 || missingColumnNames.size() > 0 || missingTypes.size() > 0) {
StringBuffer buff = new StringBuffer();
buff.append(
Messages.getString("MappingDialog.Error.Message.IssuesPreventingSaving") + ":\n\n");
if (missingFamilies.size() > 0) {
buff.append(Messages.getString("MappingDialog.Error.Message.FamilyIssue") + ":\n");
buff.append(missingFamilies.toString()).append("\n\n");
}
if (missingColumnNames.size() > 0) {
buff.append(Messages.getString("MappingDialog.Error.Message.ColumnIssue") + ":\n");
buff.append(missingColumnNames.toString()).append("\n\n");
}
if (missingTypes.size() > 0) {
buff.append(Messages.getString("MappingDialog.Error.Message.TypeIssue") + ":\n");
buff.append(missingTypes.toString()).append("\n\n");
}
MessageDialog.openError(
m_shell,
Messages.getString("MappingDialog.Error.Title.IssuesPreventingSaving"),
buff.toString());
return null;
}
return theMapping;
}
