Examples with OCacheEntry com.orientechnologies.orient.core.storage.cache.OCacheEntry used on opensource projects

Example 61 with OCacheEntry

use of com.orientechnologies.orient.core.storage.cache.OCacheEntry in project orientdb by orientechnologies.

the class OSBTree method clear.

public void clear() {
    startOperation();
    try {
        final OAtomicOperation atomicOperation;
        try {
            atomicOperation = startAtomicOperation(true);
        } catch (IOException e) {
            throw OException.wrapException(new OSBTreeException("Error during sbtree clear", this), e);
        }
        acquireExclusiveLock();
        try {
            truncateFile(atomicOperation, fileId);
            if (nullPointerSupport)
                truncateFile(atomicOperation, nullBucketFileId);
            OCacheEntry cacheEntry = loadPage(atomicOperation, fileId, ROOT_INDEX, false);
            if (cacheEntry == null) {
                cacheEntry = addPage(atomicOperation, fileId);
            }
            cacheEntry.acquireExclusiveLock();
            try {
                OSBTreeBucket<K, V> rootBucket = new OSBTreeBucket<K, V>(cacheEntry, true, keySerializer, keyTypes, valueSerializer, getChanges(atomicOperation, cacheEntry));
                rootBucket.setTreeSize(0);
            } finally {
                cacheEntry.releaseExclusiveLock();
                releasePage(atomicOperation, cacheEntry);
            }
            endAtomicOperation(false, null);
        } catch (IOException e) {
            rollback(e);
            throw OException.wrapException(new OSBTreeException("Error during clear of sbtree with name " + getName(), this), e);
        } catch (RuntimeException e) {
            rollback(e);
            throw e;
        } finally {
            releaseExclusiveLock();
        }
    } finally {
        completeOperation();
    }
}

Example 62 with OCacheEntry

use of com.orientechnologies.orient.core.storage.cache.OCacheEntry in project orientdb by orientechnologies.

the class OSBTree method setSize.

private void setSize(long size, OAtomicOperation atomicOperation) throws IOException {
    OCacheEntry rootCacheEntry = loadPage(atomicOperation, fileId, ROOT_INDEX, false);
    rootCacheEntry.acquireExclusiveLock();
    try {
        OSBTreeBucket<K, V> rootBucket = new OSBTreeBucket<K, V>(rootCacheEntry, keySerializer, keyTypes, valueSerializer, getChanges(atomicOperation, rootCacheEntry));
        rootBucket.setTreeSize(size);
    } finally {
        rootCacheEntry.releaseExclusiveLock();
        releasePage(atomicOperation, rootCacheEntry);
    }
}

Example 63 with OCacheEntry

use of com.orientechnologies.orient.core.storage.cache.OCacheEntry in project orientdb by orientechnologies.

the class OLocalHashTable method lowerEntries.

@Override
public OHashIndexBucket.Entry<K, V>[] lowerEntries(K key) {
    startOperation();
    try {
        atomicOperationsManager.acquireReadLock(this);
        try {
            acquireSharedLock();
            try {
                key = keySerializer.preprocess(key, (Object[]) keyTypes);
                final long hashCode = keyHashFunction.hashCode(key);
                OHashTable.BucketPath bucketPath = getBucket(hashCode);
                long bucketPointer = directory.getNodePointer(bucketPath.nodeIndex, bucketPath.itemIndex + bucketPath.hashMapOffset);
                long pageIndex = getPageIndex(bucketPointer);
                OAtomicOperation atomicOperation = atomicOperationsManager.getCurrentOperation();
                OCacheEntry cacheEntry = loadPage(atomicOperation, fileId, pageIndex, false);
                cacheEntry.acquireSharedLock();
                try {
                    OHashIndexBucket<K, V> bucket = new OHashIndexBucket<K, V>(cacheEntry, keySerializer, valueSerializer, keyTypes, getChanges(atomicOperation, cacheEntry));
                    while (bucket.size() == 0 || comparator.compare(bucket.getKey(0), key) >= 0) {
                        final OHashTable.BucketPath prevBucketPath = prevBucketToFind(bucketPath, bucket.getDepth());
                        if (prevBucketPath == null)
                            return OCommonConst.EMPTY_BUCKET_ENTRY_ARRAY;
                        cacheEntry.releaseSharedLock();
                        releasePage(atomicOperation, cacheEntry);
                        final long prevPointer = directory.getNodePointer(prevBucketPath.nodeIndex, prevBucketPath.itemIndex + prevBucketPath.hashMapOffset);
                        pageIndex = getPageIndex(prevPointer);
                        cacheEntry = loadPage(atomicOperation, fileId, pageIndex, false);
                        cacheEntry.acquireSharedLock();
                        bucket = new OHashIndexBucket<K, V>(cacheEntry, keySerializer, valueSerializer, keyTypes, getChanges(atomicOperation, cacheEntry));
                        bucketPath = prevBucketPath;
                    }
                    final int startIndex = 0;
                    final int index = bucket.getIndex(hashCode, key);
                    final int endIndex;
                    if (index >= 0)
                        endIndex = index;
                    else
                        endIndex = -index - 1;
                    return convertBucketToEntries(bucket, startIndex, endIndex);
                } finally {
                    cacheEntry.releaseSharedLock();
                    releasePage(atomicOperation, cacheEntry);
                }
            } finally {
                releaseSharedLock();
            }
        } catch (IOException ioe) {
            throw OException.wrapException(new OLocalHashTableException("Exception during data read", this), ioe);
        } finally {
            atomicOperationsManager.releaseReadLock(this);
        }
    } finally {
        completeOperation();
    }
}

Example 64 with OCacheEntry

use of com.orientechnologies.orient.core.storage.cache.OCacheEntry in project orientdb by orientechnologies.

the class OLocalHashTable method initHashTreeState.

@SuppressFBWarnings("DLS_DEAD_LOCAL_STORE")
private void initHashTreeState(OAtomicOperation atomicOperation) throws IOException {
    truncateFile(atomicOperation, fileId);
    for (long pageIndex = 0; pageIndex < MAX_LEVEL_SIZE; pageIndex++) {
        final OCacheEntry cacheEntry = addPage(atomicOperation, fileId);
        assert cacheEntry.getPageIndex() == pageIndex;
        cacheEntry.acquireExclusiveLock();
        try {
            final OHashIndexBucket<K, V> emptyBucket = new OHashIndexBucket<K, V>(MAX_LEVEL_DEPTH, cacheEntry, keySerializer, valueSerializer, keyTypes, getChanges(atomicOperation, cacheEntry));
        } finally {
            cacheEntry.releaseExclusiveLock();
            releasePage(atomicOperation, cacheEntry);
        }
    }
    final long[] rootTree = new long[MAX_LEVEL_SIZE];
    for (int pageIndex = 0; pageIndex < MAX_LEVEL_SIZE; pageIndex++) rootTree[pageIndex] = createBucketPointer(pageIndex);
    directory.clear();
    directory.addNewNode((byte) 0, (byte) 0, (byte) MAX_LEVEL_DEPTH, rootTree);
    OCacheEntry hashStateEntry = loadPage(atomicOperation, fileStateId, hashStateEntryIndex, true);
    hashStateEntry.acquireExclusiveLock();
    try {
        OHashIndexFileLevelMetadataPage metadataPage = new OHashIndexFileLevelMetadataPage(hashStateEntry, getChanges(atomicOperation, hashStateEntry), false);
        metadataPage.setRecordsCount(0);
    } finally {
        hashStateEntry.releaseExclusiveLock();
        releasePage(atomicOperation, hashStateEntry);
    }
}

Example 65 with OCacheEntry

use of com.orientechnologies.orient.core.storage.cache.OCacheEntry in project orientdb by orientechnologies.

the class OLocalHashTable method size.

@Override
public long size() {
    startOperation();
    try {
        atomicOperationsManager.acquireReadLock(this);
        try {
            acquireSharedLock();
            try {
                final OAtomicOperation atomicOperation = atomicOperationsManager.getCurrentOperation();
                final OCacheEntry hashStateEntry = loadPage(atomicOperation, fileStateId, hashStateEntryIndex, true);
                hashStateEntry.acquireSharedLock();
                try {
                    OHashIndexFileLevelMetadataPage metadataPage = new OHashIndexFileLevelMetadataPage(hashStateEntry, getChanges(atomicOperation, hashStateEntry), false);
                    return metadataPage.getRecordsCount();
                } finally {
                    hashStateEntry.releaseSharedLock();
                    releasePage(atomicOperation, hashStateEntry);
                }
            } finally {
                releaseSharedLock();
            }
        } catch (IOException e) {
            throw OException.wrapException(new OLocalHashTableException("Error during index size request", this), e);
        } finally {
            atomicOperationsManager.releaseReadLock(this);
        }
    } finally {
        completeOperation();
    }
}