content: /*
   * 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.carbondata.core.datastore.filesystem;
  
  import java.io.BufferedWriter;
  import java.io.IOException;
  import java.io.OutputStream;
  import java.io.OutputStreamWriter;
  
  import org.apache.carbondata.common.logging.LogServiceFactory;
  
  import mockit.Mock;
  import mockit.MockUp;
  import org.apache.hadoop.conf.Configuration;
  import org.apache.hadoop.fs.FileStatus;
  import org.apache.hadoop.fs.FileSystem;
  import org.apache.hadoop.fs.LocalFileSystem;
  import org.apache.hadoop.fs.Options;
  import org.apache.hadoop.fs.Path;
  import org.apache.hadoop.hdfs.DistributedFileSystem;
  import org.apache.hadoop.hdfs.web.WebHdfsFileSystem;
  import org.apache.hadoop.util.Progressable;
  import org.apache.log4j.Logger;
  import org.junit.AfterClass;
  import org.junit.BeforeClass;
  import org.junit.Test;
  
  import static org.junit.Assert.assertArrayEquals;
  import static org.junit.Assert.assertEquals;
  import static org.junit.Assert.assertFalse;
  import static org.junit.Assert.assertTrue;
  
  
  public class HDFSCarbonFileTest {
  
      private static final Logger LOGGER =
              LogServiceFactory.getLogService(HDFSCarbonFileTest.class.getName());
      private static HDFSCarbonFile hdfsCarbonFile;
      private static FileStatus fileStatus = null;
      private static FileStatus fileStatusWithOutDirectoryPermission;
      private static String fileName = null;
      private static FileSystem fs = null;
      private static Path pt;
  
      @BeforeClass
      static public void setUp() throws IOException {
          Configuration config = new Configuration();
          // adding local hadoop configuration
          config.addResource(new Path("core-site.xml"));
          config.addResource(new Path("hdfs-site.xml"));
          fileName = "Test.carbondata"; //this path is HDFS path
          pt = new Path(fileName);
          fs = FileSystem.get(new Configuration(config));
          fs.create(pt);
          if (fs.exists(pt)) {
              OutputStream os = fs.create(pt,
                      new Progressable() {
                          public void progress() {
                              LOGGER.info("Started Writing to File===");
                          }
                      });
              BufferedWriter br = new BufferedWriter(new OutputStreamWriter(os, "UTF-8"));
              br.write("Hello World");
              br.close();
              os.close();
              fs.close();
  
              fileStatus = new FileStatus(12L, true, 60, 120l, 180L, new Path(fileName));
              fileStatusWithOutDirectoryPermission = new FileStatus(12L, false, 60, 120l, 180L, new Path(fileName));
              hdfsCarbonFile = new HDFSCarbonFile(fileStatus);
  
          }
      }
  
      @AfterClass
      static public void cleanUp() {
          try {
              fs.delete(pt, true);
          } catch (IOException e) {
              LOGGER.error("Exception Occured" + e.getMessage(), e);
          }
      }
  
      @Test
      public void testRenameForceForException() throws IOException {
  
          new MockUp<Path>() {
              @Mock
              public FileSystem getFileSystem(Configuration conf) throws IOException {
                  return new DistributedFileSystem();
              }
  
          };
          new MockUp<DistributedFileSystem>() {
              @Mock
              public void rename(Path src, Path dst, final Options.Rename... options) throws IOException {
                 throw new IOException();
              }
          };
          hdfsCarbonFile = new HDFSCarbonFile(fileStatus);
          assertFalse(hdfsCarbonFile.renameForce(fileName));
      }
  
      @Test
      public void testListFilesWithOutDirectoryPermission() {
          hdfsCarbonFile = new HDFSCarbonFile(fileStatusWithOutDirectoryPermission);
          new MockUp<FileStatus>() {
              @Mock
              public boolean isDirectory() {
                  return false;
              }
  
          };
  
          new MockUp<Path>() {
              @Mock
              public FileSystem getFileSystem(Configuration conf) throws IOException {
                  return new DistributedFileSystem();
              }
  
          };
  
          new MockUp<FileStatus>() {
              @Mock
              public Path getPath() {
                  return new Path(fileName);
              }
  
          };
          new MockUp<LocalFileSystem>() {
              @Mock
              public FileStatus[] listStatus(Path p) throws IOException {
                  return null;
              }
  
          };
          assertArrayEquals(hdfsCarbonFile.listFiles(), new CarbonFile[0]);
      }
  
      @Test
      public void testConstructorWithFilePath() {
          hdfsCarbonFile = new HDFSCarbonFile(fileName);
          assertTrue(hdfsCarbonFile instanceof HDFSCarbonFile);
      }
  
      @Test
      public void testListFilesForNullListStatus() {
          new MockUp<Path>() {
              @Mock
              public FileSystem getFileSystem(Configuration conf) throws IOException {
                  return new DistributedFileSystem();
              }
  
          };
          new MockUp<DistributedFileSystem>() {
              @Mock
              public FileStatus[] listStatus(Path var1) throws IOException {
  
                  return null;
              }
  
          };
          hdfsCarbonFile = new HDFSCarbonFile(fileStatus);
          assertEquals(hdfsCarbonFile.listFiles().length, 0);
      }
  
      @Test
      public void testListDirectory() {
          hdfsCarbonFile = new HDFSCarbonFile(fileStatus);
          new MockUp<Path>() {
              @Mock
              public FileSystem getFileSystem(Configuration conf) throws IOException {
                  return new DistributedFileSystem();
              }
  
          };
          new MockUp<DistributedFileSystem>() {
              @Mock
              public FileStatus[] listStatus(Path var1) throws IOException {
  
                  return new FileStatus[]{new FileStatus(12L, true, 60, 120l, 180L, new Path(fileName))};
              }
  
          };
  
          assertEquals(hdfsCarbonFile.listFiles().length, 1);
      }
  
      @Test
      public void testListFilesForException() throws IOException {
          new HDFSCarbonFile(fileStatusWithOutDirectoryPermission);
  
          new MockUp<FileStatus>() {
              @Mock
              public Path getPath() {
                  return new Path(fileName);
              }
  
          };
          new MockUp<Path>() {
              @Mock
              public FileSystem getFileSystem(Configuration conf) throws IOException {
                  return new DistributedFileSystem();
              }
  
          };
          new MockUp<DistributedFileSystem>() {
              @Mock
              public FileStatus[] listStatus(Path var1) throws IOException {
  
                  throw new IOException();
              }
  
          };
          hdfsCarbonFile = new HDFSCarbonFile(fileStatus);
          hdfsCarbonFile.listFiles();
      }
  
      @Test
      public void testListFilesWithCarbonFilter() {
          CarbonFileFilter carbonFileFilter = new CarbonFileFilter() {
  
              @Override
              public boolean accept(CarbonFile file) {
                  return true;
              }
          };
          new MockUp<FileStatus>() {
              @Mock
              public boolean isDirectory() {
                  return true;
              }
  
          };
  
          new MockUp<Path>() {
              @Mock
              public FileSystem getFileSystem(Configuration conf) throws IOException {
                  return new DistributedFileSystem();
              }
  
          };
  
          new MockUp<FileStatus>() {
              @Mock
              public Path getPath() {
                  return new Path(fileName);
              }
  
          };
          new MockUp<DistributedFileSystem>() {
              @Mock
              public FileStatus[] listStatus(Path var1) throws IOException {
  
                  return new FileStatus[]{new FileStatus(12L, true, 60, 120l, 180L, new Path(fileName))};
              }
  
          };
          hdfsCarbonFile = new HDFSCarbonFile(fileStatus);
          assertEquals(hdfsCarbonFile.listFiles(carbonFileFilter).length, 1);
      }
  
      @Test
      public void testlistFilesWithoutFilter() {
          CarbonFileFilter carbonFileFilter = new CarbonFileFilter() {
  
              @Override
              public boolean accept(CarbonFile file) {
                  return false;
              }
          };
          new MockUp<Path>() {
              @Mock
              public FileSystem getFileSystem(Configuration conf) throws IOException {
                  return new DistributedFileSystem();
              }
  
          };
          new MockUp<DistributedFileSystem>() {
              @Mock
              public FileStatus[] listStatus(Path var1) throws IOException {
  
                  return new FileStatus[]{new FileStatus(12L, true, 60, 120l, 180L, new Path(fileName))};
              }
  
          };
          hdfsCarbonFile = new HDFSCarbonFile(fileStatus);
          assertEquals(hdfsCarbonFile.listFiles(carbonFileFilter).length, 0);
      }
  
      @Test
      public void testGetParentFileForNull() {
  
          new MockUp<Path>() {
              @Mock
              public Path getParent() {
                  return null;
              }
  
          };
          new MockUp<DistributedFileSystem>() {
              @Mock
              public FileStatus getFileStatus(Path f) throws IOException {
                  return new FileStatus();
              }
  
          };
          new MockUp<Path>() {
              @Mock
              public FileSystem getFileSystem(Configuration conf) throws IOException {
                  return new DistributedFileSystem();
              }
  
          };
  
          new MockUp<FileStatus>() {
              @Mock
              public Path getPath() {
                  return new Path(fileName);
              }
  
          };
          hdfsCarbonFile = new HDFSCarbonFile(fileStatus);
          assertEquals(hdfsCarbonFile.getParentFile(), null);
      }
  
      @Test
      public void testGetParentFile() {
          new MockUp<Path>() {
              @Mock
              public FileSystem getFileSystem(Configuration conf) throws IOException {
                  return new DistributedFileSystem();
              }
  
          };
          new MockUp<Path>() {
              @Mock
              public Path getParent() {
                  return new Path(fileName);
              }
  
          };
          new MockUp<FileStatus>() {
              @Mock
              public Path getPath() {
                  return new Path(fileName);
              }
  
          };
          new MockUp<DistributedFileSystem>() {
              @Mock
              public FileStatus getFileStatus(Path file) throws IOException {
  
                  return new FileStatus(12L, true, 60, 120l, 180L, new Path(fileName));
              }
  
          };
  
          hdfsCarbonFile = new HDFSCarbonFile(fileStatus);
          assertTrue(hdfsCarbonFile.getParentFile() instanceof CarbonFile);
      }
  
      @Test
      public void testForNonDisributedSystem() {
          new MockUp<Path>() {
              @Mock
              public FileSystem getFileSystem(Configuration conf) throws IOException {
                  return new WebHdfsFileSystem();
              }
  
          };
          new MockUp<WebHdfsFileSystem>(){
              @Mock
              public boolean rename(final Path src, final Path dst) throws IOException {
                  return true;
              }
          };
  
          assertEquals(new HDFSCarbonFile(fileStatus).renameForce(fileName), true);
      }
  
      @Test
      public void testrenameForceForDisributedSystem() {
          new MockUp<Path>() {
              @Mock
              public FileSystem getFileSystem(Configuration conf) throws IOException {
                  return new DistributedFileSystem();
              }
  
          };
          new MockUp<DistributedFileSystem>() {
              @Mock
              public void rename(Path src, Path dst, final Options.Rename... options) throws IOException {
  
              }
  
          };
          hdfsCarbonFile = new HDFSCarbonFile(fileStatus);
          assertEquals(hdfsCarbonFile.renameForce(fileName), true);
  
      }
  }
  
  