Examples with Exception java.lang.Exception used on opensource projects

Example 21 with Exception

use of java.lang.Exception in project lucene-solr by apache.

the class TestWindowsFS method testOpenDeleteConcurrently.

public void testOpenDeleteConcurrently() throws IOException, Exception {
    final Path dir = wrap(createTempDir());
    final Path file = dir.resolve("thefile");
    final CyclicBarrier barrier = new CyclicBarrier(2);
    final AtomicBoolean stopped = new AtomicBoolean(false);
    Thread t = new Thread() {

        @Override
        public void run() {
            try {
                barrier.await();
            } catch (Exception ex) {
                throw new RuntimeException(ex);
            }
            while (stopped.get() == false) {
                try {
                    if (random().nextBoolean()) {
                        Files.delete(file);
                    } else if (random().nextBoolean()) {
                        Files.deleteIfExists(file);
                    } else {
                        Path target = file.resolveSibling("other");
                        Files.move(file, target);
                        Files.delete(target);
                    }
                } catch (IOException ex) {
                // continue
                }
            }
        }
    };
    t.start();
    barrier.await();
    try {
        final int iters = 10 + random().nextInt(100);
        for (int i = 0; i < iters; i++) {
            boolean opened = false;
            try (OutputStream stream = Files.newOutputStream(file)) {
                opened = true;
                stream.write(0);
            // just create
            } catch (FileNotFoundException | NoSuchFileException ex) {
                assertEquals("File handle leaked - file is closed but still registered", 0, ((WindowsFS) dir.getFileSystem().provider()).openFiles.size());
                assertFalse("caught FNF on close", opened);
            }
            assertEquals("File handle leaked - file is closed but still registered", 0, ((WindowsFS) dir.getFileSystem().provider()).openFiles.size());
            Files.deleteIfExists(file);
        }
    } finally {
        stopped.set(true);
        t.join();
    }
}

Example 22 with Exception

use of java.lang.Exception in project hive by apache.

the class TestJdbcDriver2 method checkResultSetExpected.

private void checkResultSetExpected(Statement stmt, List<String> setupQueries, String testQuery, boolean isExpectedResultSet) throws Exception {
    boolean hasResultSet;
    // execute the setup queries
    for (String setupQuery : setupQueries) {
        try {
            stmt.execute(setupQuery);
        } catch (Exception e) {
            failWithExceptionMsg(e);
        }
    }
    // execute the test query
    try {
        hasResultSet = stmt.execute(testQuery);
        assertEquals(hasResultSet, isExpectedResultSet);
    } catch (Exception e) {
        failWithExceptionMsg(e);
    }
}

Example 23 with Exception

use of java.lang.Exception in project hive by apache.

the class TestJdbcDriver2 method testClientInfo.

@Test
public void testClientInfo() throws SQLException {
    DatabaseMetaData meta = con.getMetaData();
    ResultSet res = meta.getClientInfoProperties();
    try {
        assertTrue(res.next());
        assertEquals("ApplicationName", res.getString(1));
        assertEquals(1000, res.getInt("MAX_LEN"));
        assertFalse(res.next());
    } catch (Exception e) {
        String msg = "Unexpected exception: " + e;
        LOG.info(msg, e);
        fail(msg);
    }
    Connection conn = getConnection("");
    try {
        conn.setClientInfo("ApplicationName", "test");
        assertEquals("test", conn.getClientInfo("ApplicationName"));
    } finally {
        conn.close();
    }
}

Example 24 with Exception

use of java.lang.Exception in project hive by apache.

the class TestJdbcDriver2 method testNonAsciiReturnValues.

/**
 * Loads data from a table containing non-ascii value column
 * Runs a query and compares the return value
 * @throws Exception
 */
@Test
public void testNonAsciiReturnValues() throws Exception {
    String nonAsciiTableName = "nonAsciiTable";
    String nonAsciiString = "Garçu Kôkaku kidôtai";
    Path nonAsciiFilePath = new Path(dataFileDir, "non_ascii_tbl.txt");
    Statement stmt = con.createStatement();
    stmt.execute("set hive.support.concurrency = false");
    // Create table
    stmt.execute("create table " + nonAsciiTableName + " (key int, value string) " + "row format delimited fields terminated by '|'");
    // Load data
    stmt.execute("load data local inpath '" + nonAsciiFilePath.toString() + "' into table " + nonAsciiTableName);
    ResultSet rs = stmt.executeQuery("select value from " + nonAsciiTableName + " limit 1");
    while (rs.next()) {
        String resultValue = rs.getString(1);
        assertTrue(resultValue.equalsIgnoreCase(nonAsciiString));
    }
    // Drop table, ignore error.
    try {
        stmt.execute("drop table " + nonAsciiTableName);
    } catch (Exception ex) {
    // no-op
    }
    stmt.close();
}

Example 25 with Exception

use of java.lang.Exception in project hive by apache.

the class TestJdbcDriver2 method testSetOnConnection.

@Test
public void testSetOnConnection() throws Exception {
    Connection connection = getConnection(testDbName + "?conf1=conf2;conf3=conf4#var1=var2;var3=var4");
    try {
        verifyConfValue(connection, "conf1", "conf2");
        verifyConfValue(connection, "conf3", "conf4");
        verifyConfValue(connection, "var1", "var2");
        verifyConfValue(connection, "var3", "var4");
    } catch (Exception e) {
        connection.close();
    }
}