Examples with Schema org.apache.hadoop.hive.metastore.api.Schema used on opensource projects

Example 6 with Schema

use of org.apache.hadoop.hive.metastore.api.Schema in project hive by apache.

the class TestCliDriverMethods method testThatCliDriverPrintsHeaderForCommandsWithSchema.

// If the command has an associated schema, make sure it gets printed to use
public void testThatCliDriverPrintsHeaderForCommandsWithSchema() throws CommandNeedRetryException {
    Schema mockSchema = mock(Schema.class);
    List<FieldSchema> fieldSchemas = new ArrayList<FieldSchema>();
    String fieldName = "FlightOfTheConchords";
    fieldSchemas.add(new FieldSchema(fieldName, "type", "comment"));
    when(mockSchema.getFieldSchemas()).thenReturn(fieldSchemas);
    PrintStream mockOut = headerPrintingTestDriver(mockSchema);
    // Should have printed out the header for the field schema
    verify(mockOut, times(1)).print(fieldName);
}

Example 7 with Schema

use of org.apache.hadoop.hive.metastore.api.Schema in project hive by apache.

the class Driver method getSchema.

/**
   * Get a Schema with fields represented with native Hive types
   */
private static Schema getSchema(BaseSemanticAnalyzer sem, HiveConf conf) {
    Schema schema = null;
    // give up.
    if (sem == null) {
    // can't get any info without a plan
    } else if (sem.getResultSchema() != null) {
        List<FieldSchema> lst = sem.getResultSchema();
        schema = new Schema(lst, null);
    } else if (sem.getFetchTask() != null) {
        FetchTask ft = sem.getFetchTask();
        TableDesc td = ft.getTblDesc();
        // deserializer.
        if (td == null && ft.getWork() != null && ft.getWork().getPartDesc() != null) {
            if (ft.getWork().getPartDesc().size() > 0) {
                td = ft.getWork().getPartDesc().get(0).getTableDesc();
            }
        }
        if (td == null) {
            LOG.info("No returning schema.");
        } else {
            String tableName = "result";
            List<FieldSchema> lst = null;
            try {
                lst = MetaStoreUtils.getFieldsFromDeserializer(tableName, td.getDeserializer(conf));
            } catch (Exception e) {
                LOG.warn("Error getting schema: " + org.apache.hadoop.util.StringUtils.stringifyException(e));
            }
            if (lst != null) {
                schema = new Schema(lst, null);
            }
        }
    }
    if (schema == null) {
        schema = new Schema();
    }
    LOG.info("Returning Hive schema: " + schema);
    return schema;
}