Example usage for org.apache.commons.lang.mutable MutableBoolean wait

Introduction

In this page you can find the example usage for org.apache.commons.lang.mutable MutableBoolean wait.

Prototype

public final void wait() throws InterruptedException 

Source Link

Document

Causes the current thread to wait until it is awakened, typically by being notified or interrupted.

Usage

From source file:org.apache.hadoop.hbase.regionserver.TestSplitWalDataLoss.java

@Test
public void test() throws IOException, InterruptedException {
    final HRegionServer rs = testUtil.getRSForFirstRegionInTable(tableName);
    final HRegion region = (HRegion) rs.getOnlineRegions(tableName).get(0);
    HRegion spiedRegion = spy(region);// w  ww .j  a  v a2 s  .  c o  m
    final MutableBoolean flushed = new MutableBoolean(false);
    final MutableBoolean reported = new MutableBoolean(false);
    doAnswer(new Answer<FlushResult>() {
        @Override
        public FlushResult answer(InvocationOnMock invocation) throws Throwable {
            synchronized (flushed) {
                flushed.setValue(true);
                flushed.notifyAll();
            }
            synchronized (reported) {
                while (!reported.booleanValue()) {
                    reported.wait();
                }
            }
            rs.getWAL(region.getRegionInfo()).abortCacheFlush(region.getRegionInfo().getEncodedNameAsBytes());
            throw new DroppedSnapshotException("testcase");
        }
    }).when(spiedRegion).internalFlushCacheAndCommit(Matchers.<WAL>any(), Matchers.<MonitoredTask>any(),
            Matchers.<PrepareFlushResult>any(), Matchers.<Collection<Store>>any());
    rs.onlineRegions.put(rs.onlineRegions.keySet().iterator().next(), spiedRegion);
    Connection conn = testUtil.getConnection();

    try (Table table = conn.getTable(tableName)) {
        table.put(new Put(Bytes.toBytes("row0")).addColumn(family, qualifier, Bytes.toBytes("val0")));
    }
    long oldestSeqIdOfStore = region.getOldestSeqIdOfStore(family);
    Log.info("CHANGE OLDEST " + oldestSeqIdOfStore);
    assertTrue(oldestSeqIdOfStore > HConstants.NO_SEQNUM);
    rs.cacheFlusher.requestFlush(spiedRegion, false);
    synchronized (flushed) {
        while (!flushed.booleanValue()) {
            flushed.wait();
        }
    }
    try (Table table = conn.getTable(tableName)) {
        table.put(new Put(Bytes.toBytes("row1")).addColumn(family, qualifier, Bytes.toBytes("val1")));
    }
    long now = EnvironmentEdgeManager.currentTime();
    rs.tryRegionServerReport(now - 500, now);
    synchronized (reported) {
        reported.setValue(true);
        reported.notifyAll();
    }
    while (testUtil.getRSForFirstRegionInTable(tableName) == rs) {
        Thread.sleep(100);
    }
    try (Table table = conn.getTable(tableName)) {
        Result result = table.get(new Get(Bytes.toBytes("row0")));
        assertArrayEquals(Bytes.toBytes("val0"), result.getValue(family, qualifier));
    }
}

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