| /*========================================================================= |
| * Copyright (c) 2010-2014 Pivotal Software, Inc. All Rights Reserved. |
| * This product is protected by U.S. and international copyright |
| * and intellectual property laws. Pivotal products are covered by |
| * one or more patents listed at http://www.pivotal.io/patents. |
| *========================================================================= |
| */ |
| package com.gemstone.gemfire.internal.cache; |
| |
| import com.gemstone.gemfire.CancelCriterion; |
| import com.gemstone.gemfire.cache.DiskAccessException; |
| import com.gemstone.gemfire.internal.cache.persistence.DiskExceptionHandler; |
| import com.gemstone.gemfire.internal.cache.persistence.DiskRecoveryStore; |
| import com.gemstone.gemfire.internal.cache.persistence.DiskRegionView; |
| |
| /** |
| * A disk region that is created when doing offline compaction. |
| */ |
| public class OfflineCompactionDiskRegion extends DiskRegion implements DiskRecoveryStore { |
| private OfflineCompactionDiskRegion(DiskStoreImpl ds, |
| DiskRegionView drv) { |
| super(ds, drv.getName(), drv.isBucket(), true, false, true, |
| new DiskRegionStats(ds.getCache().getDistributedSystem(), drv.getName()), |
| new DummyCancelCriterion(), |
| new DummyDiskExceptionHandler(), |
| null, drv.getFlags(), drv.getPartitionName(), drv.getStartingBucketId(), |
| drv.getCompressorClassName(), drv.getOffHeap()); |
| setConfig(drv.getLruAlgorithm(), drv.getLruAction(), drv.getLruLimit(), |
| drv.getConcurrencyLevel(), drv.getInitialCapacity(), |
| drv.getLoadFactor(), drv.getStatisticsEnabled(), |
| drv.isBucket(), drv.getFlags(), drv.getPartitionName(), drv.getStartingBucketId(), |
| drv.getCompressorClassName(), drv.getOffHeap()); |
| } |
| |
| static OfflineCompactionDiskRegion create(DiskStoreImpl dsi, DiskRegionView drv) { |
| assert dsi != null; |
| OfflineCompactionDiskRegion result = new OfflineCompactionDiskRegion(dsi, drv); |
| result.register(); |
| return result; |
| } |
| |
| ///////////// DiskRecoveryStore methods //////////////// |
| public DiskRegionView getDiskRegionView() { |
| return this; |
| } |
| |
| public DiskEntry getDiskEntry(Object key) { |
| return null; |
| } |
| |
| public DiskEntry initializeRecoveredEntry(Object key, DiskEntry.RecoveredEntry re) { |
| throw new IllegalStateException("updateRecoveredEntry should not be called when offline compacting"); |
| } |
| |
| public DiskEntry updateRecoveredEntry(Object key, DiskEntry.RecoveredEntry re) { |
| throw new IllegalStateException("updateRecoveredEntry should not be called when offline compacting"); |
| } |
| public void destroyRecoveredEntry(Object key) { |
| } |
| public void foreachRegionEntry(LocalRegion.RegionEntryCallback callback) { |
| throw new IllegalStateException("foreachRegionEntry should not be called when offline compacting"); |
| } |
| public boolean lruLimitExceeded() { |
| return false; |
| } |
| public void copyRecoveredEntries(RegionMap rm) { |
| throw new IllegalStateException("copyRecoveredEntries should not be called on OfflineCompactionDiskRegion"); |
| } |
| public void updateSizeOnFaultIn(Object key, int newSize, int bytesOnDisk) { |
| throw new IllegalStateException("updateSizeOnFaultIn should not be called on OfflineCompactionDiskRegion"); |
| } |
| @Override |
| public int calculateValueSize(Object val) { |
| return 0; |
| } |
| @Override |
| public int calculateRegionEntryValueSize(RegionEntry re) { |
| return 0; |
| } |
| public RegionMap getRegionMap() { |
| throw new IllegalStateException("getRegionMap should not be called on OfflineCompactionDiskRegion"); |
| } |
| public void handleDiskAccessException(DiskAccessException dae) { |
| throw new IllegalStateException("handleDiskAccessException should not be called on OfflineCompactionDiskRegion"); |
| } |
| public void initializeStats(long numEntriesInVM, long numOverflowOnDisk, |
| long numOverflowBytesOnDisk) { |
| throw new IllegalStateException("initializeStats should not be called on OfflineCompactionDiskRegion"); |
| } |
| |
| |
| |
| public static class DummyDiskExceptionHandler implements DiskExceptionHandler { |
| public void handleDiskAccessException(DiskAccessException dae) { |
| // nothing needed |
| } |
| public boolean shouldStopServer() { |
| return false; |
| } |
| } |
| |
| private static class DummyCancelCriterion extends CancelCriterion { |
| |
| @Override |
| public String cancelInProgress() { |
| return null; |
| } |
| |
| @Override |
| public RuntimeException generateCancelledException(Throwable e) { |
| return new RuntimeException(e); |
| } |
| |
| } |
| } |