Examples with UserException org.apache.drill.common.exceptions.UserException used on opensource projects

Example 81 with UserException

use of org.apache.drill.common.exceptions.UserException in project drill by apache.

the class TestScanLifecycleTwoReaders method testEarlySchemaTypeConflict.

/**
 * SELECT * from two readers: both (a, b), but with a conflicting
 * type for the column b. The reader fail will with a type conflict.
 */
@Test
public void testEarlySchemaTypeConflict() {
    ScanLifecycleBuilder builder = new ScanLifecycleBuilder();
    builder.allowSchemaChange(true);
    builder.readerFactory(new TwoReaderFactory() {

        @Override
        public ManagedReader firstReader(SchemaNegotiator negotiator) {
            return new MockLateSchemaReader(negotiator, 1);
        }

        @Override
        public ManagedReader secondReader(SchemaNegotiator negotiator) {
            return new MockEarlySchemaTypeConflictReader(negotiator);
        }
    });
    ScanLifecycle scan = buildScan(builder);
    verifyStandardReader(scan, 0);
    RowBatchReader reader = scan.nextReader();
    try {
        reader.open();
        fail();
    } catch (UserException e) {
        assertTrue(e.getMessage().contains("conflict"));
    }
    reader.close();
    scan.close();
}

Example 82 with UserException

use of org.apache.drill.common.exceptions.UserException in project drill by apache.

the class TestReaderErrors method testCloseError.

@Test
public void testCloseError() {
    ScanLifecycleBuilder builder = new ScanLifecycleBuilder();
    builder.errorContext(b -> b.addContext("Scan context"));
    builder.readerFactory(new SingleReaderFactory() {

        @Override
        public ManagedReader next(SchemaNegotiator negotiator) {
            return new FailingReader(negotiator, "close");
        }
    });
    ScanLifecycle scan = buildScan(builder);
    RowBatchReader reader = scan.nextReader();
    assertTrue(reader.open());
    assertFalse(reader.next());
    try {
        reader.close();
        fail();
    } catch (UserException e) {
    // Expected
    }
    scan.close();
}

Example 83 with UserException

use of org.apache.drill.common.exceptions.UserException in project drill by apache.

the class TestScanLifecycleTwoReaders method testShrinkingSchemaWithConflict.

/**
 * Shrinking schema, as above. Explicit projection:<pre><code>
 * SELECT a, b FROM (a) then (a,b)
 * </code></pre><p>
 * But choose a missing column type (the default
 * Nullable INT) in the first reader that will conflict with the actual column type
 * (VARCHAR) in the second.
 */
@Test
public void testShrinkingSchemaWithConflict() {
    ScanLifecycleBuilder builder = new ScanLifecycleBuilder();
    builder.projection(RowSetTestUtils.projectList("a", "b"));
    builder.readerFactory(new TwoReaderFactory() {

        @Override
        public ManagedReader firstReader(SchemaNegotiator negotiator) {
            return new MockSingleColReader(negotiator);
        }

        @Override
        public ManagedReader secondReader(SchemaNegotiator negotiator) {
            return new MockEarlySchemaReader(negotiator, 1);
        }
    });
    ScanLifecycle scan = buildScan(builder);
    RowBatchReader reader = scan.nextReader();
    assertTrue(reader.open());
    assertTrue(reader.next());
    reader.output().clear();
    assertFalse(reader.next());
    reader.close();
    reader = scan.nextReader();
    try {
        reader.open();
        fail();
    } catch (UserException e) {
        assertTrue(e.getMessage().contains("conflict"));
    }
    reader.close();
    scan.close();
}

Example 84 with UserException

use of org.apache.drill.common.exceptions.UserException in project drill by apache.

the class TestSchemaTrackerEarlyReaderSchema method testModeConflict.

@Test
public void testModeConflict() {
    ProjectionSchemaTracker tracker = trackerFor(RowSetTestUtils.projectAll());
    tracker.applyProvidedSchema(SCHEMA);
    assertTrue(tracker.isResolved());
    TupleMetadata readerSchema = new SchemaBuilder().addNullable("a", MinorType.INT).build();
    try {
        tracker.applyEarlyReaderSchema(readerSchema);
        fail();
    } catch (UserException e) {
        assertTrue(e.getMessage().contains("type conflict"));
        assertTrue(e.getMessage().contains("Scan column: `a` INT NOT NULL"));
        assertTrue(e.getMessage().contains("Reader column: `a` INT"));
    }
}

Example 85 with UserException

use of org.apache.drill.common.exceptions.UserException in project drill by apache.

the class TestSchemaTrackerEarlyReaderSchema method testTypeConflict.

@Test
public void testTypeConflict() {
    ProjectionSchemaTracker tracker = trackerFor(RowSetTestUtils.projectAll());
    tracker.applyProvidedSchema(SCHEMA);
    assertTrue(tracker.isResolved());
    TupleMetadata readerSchema = new SchemaBuilder().add("a", MinorType.BIGINT).build();
    try {
        tracker.applyEarlyReaderSchema(readerSchema);
        fail();
    } catch (UserException e) {
        assertTrue(e.getMessage().contains("type conflict"));
        assertTrue(e.getMessage().contains("Scan column: `a` INT NOT NULL"));
        assertTrue(e.getMessage().contains("Reader column: `a` BIGINT NOT NULL"));
    }
}