Examples with FieldInfo org.apache.storm.sql.runtime.FieldInfo used on opensource projects

Example 6 with FieldInfo

use of org.apache.storm.sql.runtime.FieldInfo in project storm by apache.

the class StormSqlContext method interpretCreateTable.

public void interpretCreateTable(SqlCreateTable n) {
    CompilerUtil.TableBuilderInfo builder = new CompilerUtil.TableBuilderInfo(typeFactory);
    List<FieldInfo> fields = new ArrayList<>();
    for (ColumnDefinition col : n.fieldList()) {
        builder.field(col.name(), col.type(), col.constraint());
        RelDataType dataType = col.type().deriveType(typeFactory);
        Class<?> javaType = (Class<?>) typeFactory.getJavaClass(dataType);
        ColumnConstraint constraint = col.constraint();
        boolean isPrimary = constraint != null && constraint instanceof ColumnConstraint.PrimaryKey;
        fields.add(new FieldInfo(col.name(), javaType, isPrimary));
    }
    if (n.parallelism() != null) {
        builder.parallelismHint(n.parallelism());
    }
    Table table = builder.build();
    schema.add(n.tableName(), table);
    ISqlStreamsDataSource ds = DataSourcesRegistry.constructStreamsDataSource(n.location(), n.inputFormatClass(), n.outputFormatClass(), n.properties(), fields);
    if (ds == null) {
        throw new RuntimeException("Failed to find data source for " + n.tableName() + " URI: " + n.location());
    } else if (dataSources.containsKey(n.tableName())) {
        throw new RuntimeException("Duplicated definition for table " + n.tableName());
    }
    dataSources.put(n.tableName(), ds);
}