Package org.apache.hadoop.hive.metastore.api

Examples of org.apache.hadoop.hive.metastore.api.LockComponent

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  // Test that existing shared_read partition with new shared_write coalesces to
  // shared_write
  @Test
  public void testSRSWPart() {
    LockRequestBuilder bldr = new LockRequestBuilder();
    LockComponent comp = new LockComponent(LockType.SHARED_READ, LockLevel.DB, "mydb");
    comp.setTablename("mytable");
    comp.setPartitionname("mypart");
    bldr.addLockComponent(comp);
    comp = new LockComponent(LockType.SHARED_WRITE, LockLevel.DB, "mydb");
    comp.setTablename("mytable");
    comp.setPartitionname("mypart");
    bldr.addLockComponent(comp).setUser("fred");
    LockRequest req = bldr.build();
    List<LockComponent> locks = req.getComponent();
    Assert.assertEquals(1, locks.size());
    Assert.assertEquals(LockType.SHARED_WRITE, locks.get(0).getType());
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  // Test that existing shared_read partition with new shared_read coalesces to
  // shared_read
  @Test
  public void testSRSRPart() {
    LockRequestBuilder bldr = new LockRequestBuilder();
    LockComponent comp = new LockComponent(LockType.SHARED_READ, LockLevel.DB, "mydb");
    comp.setTablename("mytable");
    comp.setPartitionname("mypart");
    bldr.addLockComponent(comp);
    comp = new LockComponent(LockType.SHARED_READ, LockLevel.DB, "mydb");
    comp.setTablename("mytable");
    comp.setPartitionname("mypart");
    bldr.addLockComponent(comp).setUser("fred");
    LockRequest req = bldr.build();
    List<LockComponent> locks = req.getComponent();
    Assert.assertEquals(1, locks.size());
    Assert.assertEquals(LockType.SHARED_READ, locks.get(0).getType());
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  // Test failure if user not set
  @Test
  public void noUser() {
    LockRequestBuilder bldr = new LockRequestBuilder();
    LockComponent comp = new LockComponent(LockType.EXCLUSIVE, LockLevel.DB, "mydb");
    bldr.addLockComponent(comp);
    comp = new LockComponent(LockType.EXCLUSIVE, LockLevel.DB, "mydb");
    comp.setTablename("mytable");
    bldr.addLockComponent(comp);
    boolean caughtException = false;
    try {
      LockRequest req = bldr.build();
    } catch (RuntimeException e) {
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  // Test that database and table don't coalesce.
  @Test
  public void testDbTable() throws Exception {
    LockRequestBuilder bldr = new LockRequestBuilder();
    LockComponent comp = new LockComponent(LockType.EXCLUSIVE, LockLevel.DB, "mydb");
    bldr.addLockComponent(comp).setUser("fred");
    comp = new LockComponent(LockType.EXCLUSIVE, LockLevel.DB, "mydb");
    comp.setTablename("mytable");
    bldr.addLockComponent(comp);
    LockRequest req = bldr.build();
    List<LockComponent> locks = req.getComponent();
    Assert.assertEquals(2, locks.size());
    Assert.assertEquals("fred", req.getUser());
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  // Test that database and table don't coalesce.
  @Test
  public void testTablePartition() {
    LockRequestBuilder bldr = new LockRequestBuilder();
    LockComponent comp = new LockComponent(LockType.EXCLUSIVE, LockLevel.DB, "mydb");
    comp.setTablename("mytable");
    bldr.addLockComponent(comp).setUser(null);
    comp = new LockComponent(LockType.EXCLUSIVE, LockLevel.DB, "mydb");
    comp.setTablename("mytable");
    comp.setPartitionname("mypartition");
    bldr.addLockComponent(comp);
    LockRequest req = bldr.build();
    List<LockComponent> locks = req.getComponent();
    Assert.assertEquals(2, locks.size());
    Assert.assertEquals("unknown", req.getUser());
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  // Test that 2 separate databases don't coalesce.
  @Test
  public void testTwoSeparateDbs() {
    LockRequestBuilder bldr = new LockRequestBuilder();
    LockComponent comp = new LockComponent(LockType.EXCLUSIVE, LockLevel.DB, "mydb");
    bldr.addLockComponent(comp).setUser("fred");
    comp = new LockComponent(LockType.EXCLUSIVE, LockLevel.DB, "yourdb");
    bldr.addLockComponent(comp);
    LockRequest req = bldr.build();
    List<LockComponent> locks = req.getComponent();
    Assert.assertEquals(2, locks.size());
  }
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  // Test that 2 exclusive db locks coalesce to one
  @Test
  public void testExExDb() {
    LockRequestBuilder bldr = new LockRequestBuilder();
    LockComponent comp = new LockComponent(LockType.EXCLUSIVE, LockLevel.DB, "mydb");
    bldr.addLockComponent(comp);
    comp = new LockComponent(LockType.EXCLUSIVE, LockLevel.DB, "mydb");
    bldr.addLockComponent(comp).setUser("fred");
    LockRequest req = bldr.build();
    List<LockComponent> locks = req.getComponent();
    Assert.assertEquals(1, locks.size());
  }
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  // Test that existing exclusive db with new shared_write coalesces to
  // exclusive
  @Test
  public void testExSWDb() {
    LockRequestBuilder bldr = new LockRequestBuilder();
    LockComponent comp = new LockComponent(LockType.EXCLUSIVE, LockLevel.DB, "mydb");
    bldr.addLockComponent(comp).setUser("fred");
    comp = new LockComponent(LockType.SHARED_WRITE, LockLevel.DB, "mydb");
    bldr.addLockComponent(comp);
    LockRequest req = bldr.build();
    List<LockComponent> locks = req.getComponent();
    Assert.assertEquals(1, locks.size());
    Assert.assertEquals(LockType.EXCLUSIVE, locks.get(0).getType());
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  // Test that existing exclusive db with new shared_read coalesces to
  // exclusive
  @Test
  public void testExSRDb() {
    LockRequestBuilder bldr = new LockRequestBuilder();
    LockComponent comp = new LockComponent(LockType.EXCLUSIVE, LockLevel.DB, "mydb");
    bldr.addLockComponent(comp).setUser("fred");
    comp = new LockComponent(LockType.SHARED_READ, LockLevel.DB, "mydb");
    bldr.addLockComponent(comp);
    LockRequest req = bldr.build();
    List<LockComponent> locks = req.getComponent();
    Assert.assertEquals(1, locks.size());
    Assert.assertEquals(LockType.EXCLUSIVE, locks.get(0).getType());
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  // Test that existing shared_write db with new exclusive coalesces to
  // exclusive
  @Test
  public void testSWExDb() {
    LockRequestBuilder bldr = new LockRequestBuilder();
    LockComponent comp = new LockComponent(LockType.SHARED_WRITE, LockLevel.DB, "mydb");
    bldr.addLockComponent(comp);
    comp = new LockComponent(LockType.EXCLUSIVE, LockLevel.DB, "mydb");
    bldr.addLockComponent(comp).setUser("fred");
    LockRequest req = bldr.build();
    List<LockComponent> locks = req.getComponent();
    Assert.assertEquals(1, locks.size());
    Assert.assertEquals(LockType.EXCLUSIVE, locks.get(0).getType());
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