public String getAliasForTableName(String tableName) {
for (String alias : qb.getTabAliases()) {
String table = qb.getTabNameForAlias(alias);
if (table != null && table.equalsIgnoreCase(tableName)) {
return alias;
}
}
// get alias from cubeTbls
for (Map.Entry<String, AbstractCubeTable> cubeTblEntry : cubeTbls.entrySet()) {
if (cubeTblEntry.getValue().getName().equalsIgnoreCase(tableName)) {
return cubeTblEntry.getKey();
}
}
return tableName.toLowerCase();
}
private void extractMetaTables() throws LensException {
List<String> tabAliases = new ArrayList<String>(qb.getTabAliases());
Set<String> missing = new HashSet<String>();
for (String alias : tabAliases) {
boolean added = addQueriedTable(alias);
if (!added) {
missing.add(alias);
}
}
for (String alias : missing) {
// try adding them as joinchains
boolean added = addJoinChain(alias, false);
if (!added) {
log.info("Queried tables do not exist. Missing table:{}", alias);
throw new LensException(LensCubeErrorCode.NEITHER_CUBE_NOR_DIMENSION.getLensErrorInfo());
}
}
}
public void print() {
if (!log.isDebugEnabled()) {
return;
}
StringBuilder builder = new StringBuilder();
builder.append("ASTNode:" + ast.dump() + "\n");
builder.append("QB:");
builder.append("\n numJoins:" + qb.getNumJoins());
builder.append("\n numGbys:" + qb.getNumGbys());
builder.append("\n numSels:" + qb.getNumSels());
builder.append("\n numSelDis:" + qb.getNumSelDi());
builder.append("\n aliasToTabs:");
Set<String> tabAliases = qb.getTabAliases();
for (String alias : tabAliases) {
builder.append("\n\t" + alias + ":" + qb.getTabNameForAlias(alias));
}
builder.append("\n aliases:");
for (String alias : qb.getAliases()) {
builder.append(alias);
builder.append(", ");
}
builder.append("id:" + qb.getId());
builder.append("isQuery:" + qb.getIsQuery());
builder.append("\n QBParseInfo");
QBParseInfo parseInfo = qb.getParseInfo();
builder.append("\n isSubQ: " + parseInfo.getIsSubQ());
builder.append("\n alias: " + parseInfo.getAlias());
if (parseInfo.getJoinExpr() != null) {
builder.append("\n joinExpr: " + parseInfo.getJoinExpr().dump());
}
builder.append("\n hints: " + parseInfo.getHints());
builder.append("\n aliasToSrc: ");
for (String alias : tabAliases) {
builder.append("\n\t" + alias + ": " + parseInfo.getSrcForAlias(alias).dump());
}
TreeSet<String> clauses = new TreeSet<String>(parseInfo.getClauseNames());
for (String clause : clauses) {
builder.append("\n\t" + clause + ": " + parseInfo.getClauseNamesForDest());
}
String clause = clauses.first();
if (parseInfo.getWhrForClause(clause) != null) {
builder.append("\n whereexpr: " + parseInfo.getWhrForClause(clause).dump());
}
if (parseInfo.getGroupByForClause(clause) != null) {
builder.append("\n groupby expr: " + parseInfo.getGroupByForClause(clause).dump());
}
if (parseInfo.getSelForClause(clause) != null) {
builder.append("\n sel expr: " + parseInfo.getSelForClause(clause).dump());
}
if (parseInfo.getHavingForClause(clause) != null) {
builder.append("\n having expr: " + parseInfo.getHavingForClause(clause).dump());
}
if (parseInfo.getDestLimit(clause) != null) {
builder.append("\n limit: " + parseInfo.getDestLimit(clause));
}
if (parseInfo.getAllExprToColumnAlias() != null
&& !parseInfo.getAllExprToColumnAlias().isEmpty()) {
builder.append("\n exprToColumnAlias:");
for (Map.Entry<ASTNode, String> entry : parseInfo.getAllExprToColumnAlias().entrySet()) {
builder.append("\n\t expr: " + entry.getKey().dump() + " ColumnAlias: " + entry.getValue());
}
}
if (parseInfo.getAggregationExprsForClause(clause) != null) {
builder.append("\n aggregateexprs:");
for (Map.Entry<String, ASTNode> entry :
parseInfo.getAggregationExprsForClause(clause).entrySet()) {
builder.append("\n\t key: " + entry.getKey() + " expr: " + entry.getValue().dump());
}
}
if (parseInfo.getDistinctFuncExprsForClause(clause) != null) {
builder.append("\n distinctFuncExprs:");
for (ASTNode entry : parseInfo.getDistinctFuncExprsForClause(clause)) {
builder.append("\n\t expr: " + entry.dump());
}
}
if (qb.getQbJoinTree() != null) {
builder.append("\n\n JoinTree");
QBJoinTree joinTree = qb.getQbJoinTree();
printJoinTree(joinTree, builder);
}
if (qb.getParseInfo().getDestForClause(clause) != null) {
builder.append("\n Destination:");
builder.append("\n\t dest expr:" + qb.getParseInfo().getDestForClause(clause).dump());
}
log.debug(builder.toString());
}
