use of com.google.api.ads.admanager.jaxws.v202202.ColumnType in project googleads-java-lib by googleads.
the class Pql method combineResultSets.
/**
* Combines the first and second result sets, if and only if, the columns of both result sets
* match.
*
* @throws IllegalArgumentException if the columns of the first result set don't match the second
*/
public static ResultSet combineResultSets(ResultSet first, ResultSet second) {
Function<ColumnType, String> columnTypeToString = new Function<ColumnType, String>() {
@Override
public String apply(ColumnType input) {
return input.getLabelName();
}
};
List<String> firstColumns = Lists.transform(Lists.newArrayList(first.getColumnTypes()), columnTypeToString);
List<String> secondColumns = Lists.transform(Lists.newArrayList(second.getColumnTypes()), columnTypeToString);
if (!firstColumns.equals(secondColumns)) {
throw new IllegalArgumentException(String.format("First result set columns [%s] do not match second columns [%s]", Joiner.on(",").join(firstColumns), Joiner.on(",").join(secondColumns)));
}
List<Row> combinedRows = Lists.newArrayList(first.getRows());
if (second.getRows() != null) {
Collections.addAll(combinedRows, second.getRows());
}
ResultSet combinedResultSet = new ResultSet();
combinedResultSet.setColumnTypes(first.getColumnTypes());
combinedResultSet.setRows(combinedRows.toArray(new Row[] {}));
return combinedResultSet;
}
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