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.lcm.locks;
  
  import java.io.File;
  import java.lang.reflect.Field;
  import java.util.UUID;
  
  import org.apache.carbondata.core.locks.CarbonLockFactory;
  import org.apache.carbondata.core.locks.ICarbonLock;
  import org.apache.carbondata.core.metadata.AbsoluteTableIdentifier;
  import org.apache.carbondata.core.locks.LocalFileLock;
  import org.apache.carbondata.core.locks.LockUsage;
  import org.apache.carbondata.core.util.CarbonProperties;
  import org.junit.After;
  import org.junit.Assert;
  import org.junit.Before;
  import org.junit.Test;
  
  /**
   * Test class to test the functionality of the local file locking.
   */
  public class LocalFileLockTest {
  
    private  String rootPath;
  
    private Class<?> secretClass = CarbonLockFactory.class;
  
    /**
     * @throws java.lang.Exception
     */
    @Before public void setUp() throws Exception {
      rootPath = new File(this.getClass().getResource("/").getPath()
          + "../../..").getCanonicalPath();
      String storeLocation = rootPath + "/target/store_new/";
      CarbonProperties.getInstance()
          .addProperty("carbon.storelocation", storeLocation);
    }
  
    /**
     * @throws java.lang.Exception
     */
    @After public void tearDown() throws Exception {
      Field f = secretClass.getDeclaredField("lockPath");
      f.setAccessible(true);
      f.set(secretClass, "");
      String storeLocation = rootPath + "/target/store_new/";
      new File(storeLocation).delete();
    }
  
    @Test public void testingLocalFileLockingByAcquiring2Locks() {
  
      AbsoluteTableIdentifier absoluteTableIdentifier = AbsoluteTableIdentifier
          .from(CarbonProperties.getInstance().getProperty("carbon.storelocation"), "databaseName",
              "tableName", UUID.randomUUID().toString());
      LocalFileLock localLock1 =
          new LocalFileLock(absoluteTableIdentifier.getTablePath(),
              LockUsage.METADATA_LOCK);
      Assert.assertTrue(localLock1.lock());
      LocalFileLock localLock2 =
          new LocalFileLock(absoluteTableIdentifier.getTablePath(),
              LockUsage.METADATA_LOCK);
      Assert.assertTrue(!localLock2.lock());
  
      Assert.assertTrue(localLock1.unlock());
      Assert.assertTrue(localLock2.lock());
      Assert.assertTrue(localLock2.unlock());
    }
  
    @Test public void testConfigurablePathForLock() throws Exception {
      try {
        Field f = secretClass.getDeclaredField("lockPath");
        f.setAccessible(true);
        f.set(secretClass, rootPath + "/target/");
        AbsoluteTableIdentifier absoluteTableIdentifier = AbsoluteTableIdentifier
            .from(CarbonProperties.getInstance().getProperty("carbon.storelocation"), "databaseName",
                "tableName1", "1");
        ICarbonLock carbonLock = CarbonLockFactory.getCarbonLockObj(absoluteTableIdentifier, LockUsage.TABLE_STATUS_LOCK);
        carbonLock.lockWithRetries();
        assert (new File(rootPath + "/target/1/LockFiles/tablestatus.lock").exists());
        assert (!new File(absoluteTableIdentifier.getTablePath() + "/LockFiles").exists());
      } finally {
        tearDown();
      }
    }
  
  }
  