Package org.apache.tajo.storage

Source Code of org.apache.tajo.storage.TestStorageManager

/**
* 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.tajo.storage;

import org.apache.hadoop.fs.FileSystem;
import org.apache.hadoop.fs.Path;
import org.apache.tajo.catalog.CatalogUtil;
import org.apache.tajo.catalog.Schema;
import org.apache.tajo.catalog.TableMeta;
import org.apache.tajo.catalog.proto.CatalogProtos.StoreType;
import org.apache.tajo.common.TajoDataTypes.Type;
import org.apache.tajo.conf.TajoConf;
import org.apache.tajo.datum.Datum;
import org.apache.tajo.datum.DatumFactory;
import org.apache.tajo.util.CommonTestingUtil;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;

import java.io.IOException;

import static org.junit.Assert.assertEquals;

public class TestStorageManager {
  private TajoConf conf;
  private static String TEST_PATH = "target/test-data/TestStorageManager";
  AbstractStorageManager sm = null;
  private Path testDir;
  private FileSystem fs;
  @Before
  public void setUp() throws Exception {
    conf = new TajoConf();
    testDir = CommonTestingUtil.getTestDir(TEST_PATH);
    fs = testDir.getFileSystem(conf);
    sm = StorageManagerFactory.getStorageManager(conf, testDir);
  }

  @After
  public void tearDown() throws Exception {
  }

  @Test
  public final void testGetScannerAndAppender() throws IOException {
    Schema schema = new Schema();
    schema.addColumn("id", Type.INT4);
    schema.addColumn("age",Type.INT4);
    schema.addColumn("name",Type.TEXT);

    TableMeta meta = CatalogUtil.newTableMeta(schema, StoreType.CSV);
   
    Tuple[] tuples = new Tuple[4];
    for(int i=0; i < tuples.length; i++) {
      tuples[i] = new VTuple(3);
      tuples[i].put(new Datum[] {
          DatumFactory.createInt4(i),
          DatumFactory.createInt4(i + 32),
          DatumFactory.createText("name" + i)});
    }

    Path path = StorageUtil.concatPath(testDir, "testGetScannerAndAppender", "table.csv");
    fs.mkdirs(path.getParent());
    Appender appender = StorageManagerFactory.getStorageManager(conf).getAppender(meta, path);
    appender.init();
    for(Tuple t : tuples) {
      appender.addTuple(t);
    }
    appender.close();

    Scanner scanner = StorageManagerFactory.getStorageManager(conf).getScanner(meta, path);
    scanner.init();
    int i=0;
    while(scanner.next() != null) {
      i++;
    }
    assertEquals(4,i);
  }
}
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