| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| package org.apache.drill.exec.store.mock; |
| |
| import org.apache.drill.common.types.TypeProtos.DataMode; |
| import org.apache.drill.common.types.TypeProtos.MinorType; |
| import org.apache.drill.exec.expr.TypeHelper; |
| import org.apache.drill.exec.store.mock.MockTableDef.MockColumn; |
| |
| /** |
| * Defines a column for the "enhanced" version of the mock data |
| * source. This class is built from the column definitions in either |
| * the physical plan or an SQL statement (which gives rise to a |
| * physical plan.) |
| */ |
| |
| public class ColumnDef { |
| public MockColumn mockCol; |
| public String name; |
| public int width; |
| public FieldGen generator; |
| public boolean nullable; |
| public int nullablePercent; |
| |
| public ColumnDef(MockColumn mockCol) { |
| this.mockCol = mockCol; |
| name = mockCol.getName(); |
| if (mockCol.getMinorType() == MinorType.VARCHAR && |
| mockCol.getWidth() > 0) { |
| width = mockCol.getWidth(); |
| } else { |
| width = TypeHelper.getSize(mockCol.getMajorType()); |
| } |
| nullable = mockCol.getMode() == DataMode.OPTIONAL; |
| if (nullable) { |
| nullablePercent = 25; |
| if (mockCol.properties != null) { |
| Object value = mockCol.properties.get("nulls"); |
| if (value != null && value instanceof Integer) { |
| nullablePercent = (Integer) value; |
| } |
| } |
| } |
| makeGenerator(); |
| } |
| |
| /** |
| * Create the data generator class for this column. The generator is |
| * created to match the data type by default. Or, the plan can |
| * specify a generator class (in which case the plan must ensure that |
| * the generator produces the correct value for the column data type.) |
| * The generator names a class: either a fully qualified name, or a |
| * class in this package. |
| */ |
| |
| private void makeGenerator() { |
| String genName = mockCol.getGenerator(); |
| if (genName != null) { |
| if (! genName.contains(".")) { |
| genName = "org.apache.drill.exec.store.mock." + genName; |
| } |
| try { |
| ClassLoader cl = getClass().getClassLoader(); |
| Class<?> genClass = cl.loadClass(genName); |
| generator = (FieldGen) genClass.newInstance(); |
| } catch (ClassNotFoundException | InstantiationException |
| | IllegalAccessException | ClassCastException e) { |
| throw new IllegalArgumentException("Generator " + genName + " is undefined for mock field " + name); |
| } |
| return; |
| } |
| |
| makeDefaultGenerator(); |
| } |
| |
| private void makeDefaultGenerator() { |
| |
| MinorType minorType = mockCol.getMinorType(); |
| switch (minorType) { |
| case BIGINT: |
| break; |
| case BIT: |
| generator = new BooleanGen(); |
| break; |
| case DATE: |
| break; |
| case DECIMAL18: |
| break; |
| case DECIMAL28DENSE: |
| break; |
| case DECIMAL28SPARSE: |
| break; |
| case DECIMAL38DENSE: |
| break; |
| case DECIMAL38SPARSE: |
| break; |
| case VARDECIMAL: |
| break; |
| case DECIMAL9: |
| break; |
| case FIXED16CHAR: |
| break; |
| case FIXEDBINARY: |
| break; |
| case FIXEDCHAR: |
| break; |
| case FLOAT4: |
| break; |
| case FLOAT8: |
| generator = new DoubleGen(); |
| break; |
| case GENERIC_OBJECT: |
| break; |
| case INT: |
| generator = new IntGen(); |
| break; |
| case INTERVAL: |
| break; |
| case INTERVALDAY: |
| break; |
| case INTERVALYEAR: |
| break; |
| case LATE: |
| break; |
| case LIST: |
| break; |
| case MAP: |
| break; |
| case MONEY: |
| break; |
| case NULL: |
| break; |
| case SMALLINT: |
| break; |
| case TIME: |
| break; |
| case TIMESTAMP: |
| break; |
| case TIMESTAMPTZ: |
| break; |
| case TIMETZ: |
| break; |
| case TINYINT: |
| break; |
| case UINT1: |
| break; |
| case UINT2: |
| break; |
| case UINT4: |
| break; |
| case UINT8: |
| break; |
| case UNION: |
| break; |
| case VAR16CHAR: |
| break; |
| case VARBINARY: |
| break; |
| case VARCHAR: |
| generator = new StringGen(); |
| break; |
| default: |
| break; |
| } |
| if (generator == null) { |
| throw new IllegalArgumentException("No default column generator for column " + name + " of type " + minorType); |
| } |
| } |
| |
| public ColumnDef(MockColumn mockCol, int rep) { |
| this(mockCol); |
| name += Integer.toString(rep); |
| } |
| |
| public MockColumn getConfig() { return mockCol; } |
| public String getName() { return name; } |
| } |