Examples with ResultScanner org.apache.hadoop.hbase.client.ResultScanner used on opensource projects

Example 71 with ResultScanner

use of org.apache.hadoop.hbase.client.ResultScanner in project hbase by apache.

the class TestVisibilityLabels method testVisibilityLabelsOnKillingOfRSContainingLabelsTable.

@Test
public void testVisibilityLabelsOnKillingOfRSContainingLabelsTable() throws Exception {
    List<RegionServerThread> regionServerThreads = TEST_UTIL.getHBaseCluster().getRegionServerThreads();
    int liveRS = 0;
    for (RegionServerThread rsThreads : regionServerThreads) {
        if (!rsThreads.getRegionServer().isAborted()) {
            liveRS++;
        }
    }
    if (liveRS == 1) {
        TEST_UTIL.getHBaseCluster().startRegionServer();
    }
    Thread t1 = new Thread() {

        public void run() {
            List<RegionServerThread> regionServerThreads = TEST_UTIL.getHBaseCluster().getRegionServerThreads();
            for (RegionServerThread rsThread : regionServerThreads) {
                List<Region> onlineRegions = rsThread.getRegionServer().getOnlineRegions(LABELS_TABLE_NAME);
                if (onlineRegions.size() > 0) {
                    rsThread.getRegionServer().abort("Aborting ");
                    killedRS = true;
                    break;
                }
            }
        }
    };
    t1.start();
    final TableName tableName = TableName.valueOf(TEST_NAME.getMethodName());
    Thread t = new Thread() {

        public void run() {
            try {
                while (!killedRS) {
                    Thread.sleep(1);
                }
                createTableAndWriteDataWithLabels(tableName, "(" + SECRET + "|" + CONFIDENTIAL + ")", PRIVATE);
            } catch (Exception e) {
            }
        }
    };
    t.start();
    regionServerThreads = TEST_UTIL.getHBaseCluster().getRegionServerThreads();
    while (!killedRS) {
        Thread.sleep(10);
    }
    regionServerThreads = TEST_UTIL.getHBaseCluster().getRegionServerThreads();
    for (RegionServerThread rsThread : regionServerThreads) {
        while (true) {
            if (!rsThread.getRegionServer().isAborted()) {
                List<Region> onlineRegions = rsThread.getRegionServer().getOnlineRegions(LABELS_TABLE_NAME);
                if (onlineRegions.size() > 0) {
                    break;
                } else {
                    Thread.sleep(10);
                }
            } else {
                break;
            }
        }
    }
    TEST_UTIL.waitTableEnabled(LABELS_TABLE_NAME.getName(), 50000);
    t.join();
    try (Table table = TEST_UTIL.getConnection().getTable(tableName)) {
        Scan s = new Scan();
        s.setAuthorizations(new Authorizations(SECRET));
        ResultScanner scanner = table.getScanner(s);
        Result[] next = scanner.next(3);
        assertTrue(next.length == 1);
    }
}

Example 72 with ResultScanner

use of org.apache.hadoop.hbase.client.ResultScanner in project hbase by apache.

the class ThriftHBaseServiceHandler method openScanner.

@Override
public int openScanner(ByteBuffer table, TScan scan) throws TIOError, TException {
    Table htable = getTable(table);
    ResultScanner resultScanner = null;
    try {
        resultScanner = htable.getScanner(scanFromThrift(scan));
    } catch (IOException e) {
        throw getTIOError(e);
    } finally {
        closeTable(htable);
    }
    return addScanner(resultScanner);
}

Example 73 with ResultScanner

use of org.apache.hadoop.hbase.client.ResultScanner in project hbase by apache.

the class ThriftHBaseServiceHandler method getScannerResults.

@Override
public List<TResult> getScannerResults(ByteBuffer table, TScan scan, int numRows) throws TIOError, TException {
    Table htable = getTable(table);
    List<TResult> results = null;
    ResultScanner scanner = null;
    try {
        scanner = htable.getScanner(scanFromThrift(scan));
        results = resultsFromHBase(scanner.next(numRows));
    } catch (IOException e) {
        throw getTIOError(e);
    } finally {
        if (scanner != null) {
            scanner.close();
        }
        closeTable(htable);
    }
    return results;
}

Example 74 with ResultScanner

use of org.apache.hadoop.hbase.client.ResultScanner in project hbase by apache.

the class ThriftHBaseServiceHandler method getScannerRows.

@Override
public List<TResult> getScannerRows(int scannerId, int numRows) throws TIOError, TIllegalArgument, TException {
    ResultScanner scanner = getScanner(scannerId);
    if (scanner == null) {
        TIllegalArgument ex = new TIllegalArgument();
        ex.setMessage("Invalid scanner Id");
        throw ex;
    }
    try {
        connectionCache.updateConnectionAccessTime();
        return resultsFromHBase(scanner.next(numRows));
    } catch (IOException e) {
        throw getTIOError(e);
    }
}

Example 75 with ResultScanner

use of org.apache.hadoop.hbase.client.ResultScanner in project hbase by apache.

the class TestHRegionOnCluster method putDataAndVerify.

private void putDataAndVerify(Table table, String row, byte[] family, String value, int verifyNum) throws IOException {
    System.out.println("=========Putting data :" + row);
    Put put = new Put(Bytes.toBytes(row));
    put.addColumn(family, Bytes.toBytes("q1"), Bytes.toBytes(value));
    table.put(put);
    ResultScanner resultScanner = table.getScanner(new Scan());
    List<Result> results = new ArrayList<>();
    while (true) {
        Result r = resultScanner.next();
        if (r == null)
            break;
        results.add(r);
    }
    resultScanner.close();
    if (results.size() != verifyNum) {
        System.out.println(results);
    }
    assertEquals(verifyNum, results.size());
}