| /* |
| * 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.pig.test; |
| |
| import static org.junit.Assert.assertEquals; |
| |
| import java.util.Arrays; |
| |
| import org.apache.pig.data.DataType; |
| import org.apache.pig.impl.logicalLayer.schema.Schema; |
| import org.apache.pig.impl.logicalLayer.schema.SchemaUtil; |
| import org.junit.Test; |
| |
| public class TestSchemaUtil { |
| |
| @Test |
| public void testTupleSchema() throws Exception { |
| String tupleName = "mytuple"; |
| String[] fieldNames = new String[] { "field_0", "field_1" }; |
| Byte[] dataTypes = new Byte[] { DataType.LONG, DataType.CHARARRAY }; |
| |
| String expected = "{mytuple: (field_0: long,field_1: chararray)}"; |
| Schema tupleSchema = SchemaUtil.newTupleSchema(tupleName, |
| fieldNames, dataTypes); |
| assertEquals(expected, tupleSchema.toString()); |
| |
| tupleSchema = SchemaUtil.newTupleSchema(tupleName, Arrays |
| .asList(fieldNames), Arrays.asList(dataTypes)); |
| assertEquals(expected, tupleSchema.toString()); |
| |
| expected = "{t: (field_0: long,field_1: chararray)}"; |
| tupleSchema = SchemaUtil.newTupleSchema(fieldNames, dataTypes); |
| assertEquals(expected, tupleSchema.toString()); |
| |
| tupleSchema = SchemaUtil.newTupleSchema(Arrays.asList(fieldNames), |
| Arrays.asList(dataTypes)); |
| assertEquals(expected, tupleSchema.toString()); |
| |
| expected = "{t: (f0: long,f1: chararray)}"; |
| tupleSchema = SchemaUtil.newTupleSchema(dataTypes); |
| assertEquals(expected, tupleSchema.toString()); |
| |
| tupleSchema = SchemaUtil.newTupleSchema(Arrays.asList(dataTypes)); |
| assertEquals(expected, tupleSchema.toString()); |
| } |
| |
| @Test |
| public void testBagSchema() throws Exception { |
| String bagName="mybag"; |
| String tupleName = "mytuple"; |
| String[] fieldNames = new String[] { "field_0", "field_1" }; |
| Byte[] dataTypes = new Byte[] { DataType.LONG, DataType.CHARARRAY }; |
| |
| String expected = "{mybag: {mytuple: (field_0: long,field_1: chararray)}}"; |
| Schema bagSchema = SchemaUtil.newBagSchema(bagName,tupleName, |
| fieldNames, dataTypes); |
| assertEquals(expected, bagSchema.toString()); |
| |
| bagSchema = SchemaUtil.newBagSchema(bagName,tupleName, Arrays |
| .asList(fieldNames), Arrays.asList(dataTypes)); |
| assertEquals(expected, bagSchema.toString()); |
| |
| expected = "{b: {t: (field_0: long,field_1: chararray)}}"; |
| bagSchema = SchemaUtil.newBagSchema(fieldNames, dataTypes); |
| assertEquals(expected, bagSchema.toString()); |
| |
| bagSchema = SchemaUtil.newBagSchema(Arrays.asList(fieldNames), |
| Arrays.asList(dataTypes)); |
| assertEquals(expected, bagSchema.toString()); |
| |
| expected = "{b: {t: (f0: long,f1: chararray)}}"; |
| bagSchema = SchemaUtil.newBagSchema(dataTypes); |
| assertEquals(expected, bagSchema.toString()); |
| |
| bagSchema = SchemaUtil.newBagSchema(Arrays.asList(dataTypes)); |
| assertEquals(expected, bagSchema.toString()); |
| } |
| } |