Package org.apache.activemq.kaha.impl.index

Examples of org.apache.activemq.kaha.impl.index.IndexItem

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        MapContainerImpl result = maps.get(containerId);
        if (result == null) {
            DataManager dm = getDataManager(containerName);
            IndexManager im = getIndexManager(dm, containerName);

            IndexItem root = mapsContainer.getRoot(im, containerId);
            if (root == null) {
                root = mapsContainer.addRoot(im, containerId);
            }
            result = new MapContainerImpl(directory, containerId, root, im, dm, persistentIndex);
            maps.put(containerId, result);
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        ListContainerImpl result = lists.get(containerId);
        if (result == null) {
            DataManager dm = getDataManager(containerName);
            IndexManager im = getIndexManager(dm, containerName);

            IndexItem root = listsContainer.getRoot(im, containerId);
            if (root == null) {
                root = listsContainer.addRoot(im, containerId);
            }
            result = new ListContainerImpl(containerId, root, im, dm, persistentIndex);
            lists.put(containerId, result);
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            LOG.info("Kaha Store using data directory " + directory);
            lockFile = new RandomAccessFile(new File(directory, "lock"), "rw");
            lock();
            DataManager defaultDM = getDataManager(defaultContainerName);
            IndexManager rootIndexManager = getIndexManager(defaultDM, defaultContainerName);
            IndexItem mapRoot = new IndexItem();
            IndexItem listRoot = new IndexItem();
            if (rootIndexManager.isEmpty()) {
                mapRoot.setOffset(0);
                rootIndexManager.storeIndex(mapRoot);
                listRoot.setOffset(IndexItem.INDEX_SIZE);
                rootIndexManager.storeIndex(listRoot);
                rootIndexManager.setLength(IndexItem.INDEX_SIZE * 2);
            } else {
                mapRoot = rootIndexManager.getIndex(0);
                listRoot = rootIndexManager.getIndex(IndexItem.INDEX_SIZE);
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    private void generateInterestInListDataFiles() throws IOException {
        for (Iterator i = listsContainer.getKeys().iterator(); i.hasNext();) {
            ContainerId id = (ContainerId)i.next();
            DataManager dm = getDataManager(id.getDataContainerName());
            IndexManager im = getIndexManager(dm, id.getDataContainerName());
            IndexItem theRoot = listsContainer.getRoot(im, id);
            long nextItem = theRoot.getNextItem();
            while (nextItem != Item.POSITION_NOT_SET) {
                IndexItem item = im.getIndex(nextItem);
                item.setOffset(nextItem);
                dm.addInterestInFile(item.getKeyFile());
                dm.addInterestInFile(item.getValueFile());
                nextItem = item.getNextItem();
            }
        }
    }
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    private void generateInterestInMapDataFiles() throws IOException {
        for (Iterator i = mapsContainer.getKeys().iterator(); i.hasNext();) {
            ContainerId id = (ContainerId)i.next();
            DataManager dm = getDataManager(id.getDataContainerName());
            IndexManager im = getIndexManager(dm, id.getDataContainerName());
            IndexItem theRoot = mapsContainer.getRoot(im, id);
            long nextItem = theRoot.getNextItem();
            while (nextItem != Item.POSITION_NOT_SET) {
                IndexItem item = im.getIndex(nextItem);
                item.setOffset(nextItem);
                dm.addInterestInFile(item.getKeyFile());
                dm.addInterestInFile(item.getValueFile());
                nextItem = item.getNextItem();
            }

        }
    }
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                try {
                    init();
                    index.load();
                    long nextItem = root.getNextItem();
                    while (nextItem != Item.POSITION_NOT_SET) {
                        IndexItem item = indexManager.getIndex(nextItem);
                        StoreLocation data = item.getKeyDataItem();
                        Object key = dataManager.readItem(keyMarshaller, data);
                        if (index.isTransient()) {
                            index.store(key, item);
                        }
                        indexList.add(item);
                        nextItem = item.getNextItem();
                    }
                } catch (IOException e) {
                    LOG.error("Failed to load container " + getId(), e);
                    throw new RuntimeStoreException(e);
                }
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     */
    public synchronized boolean containsValue(Object o) {
        load();
        boolean result = false;
        if (o != null) {
            IndexItem item = indexList.getFirst();
            while (item != null) {
                Object value = getValue(item);
                if (value != null && value.equals(o)) {
                    result = true;
                    break;
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     *      java.lang.Object)
     */
    public synchronized Object put(Object key, Object value) {
        load();
        Object result = remove(key);
        IndexItem item = write(key, value);
        try {
            index.store(key, item);
        } catch (IOException e) {
            LOG.error("Failed trying to insert key: " + key, e);
            throw new RuntimeException(e);
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     */
    public synchronized Object remove(Object key) {
        load();
        try {
            Object result = null;
            IndexItem item = (IndexItem)index.remove(key);
            if (item != null) {
                // refresh the index
                item = (IndexItem)indexList.refreshEntry(item);
                result = getValue(item);
                IndexItem prev = indexList.getPrevEntry(item);
                IndexItem next = indexList.getNextEntry(item);
                indexList.remove(item);
                delete(item, prev, next);
            }
            return result;
        } catch (IOException e) {
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    public synchronized boolean removeValue(Object o) {
        load();
        boolean result = false;
        if (o != null) {
            IndexItem item = indexList.getFirst();
            while (item != null) {
                Object value = getValue(item);
                if (value != null && value.equals(o)) {
                    result = true;
                    // find the key
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Related Classes of org.apache.activemq.kaha.impl.index.IndexItem

  • org.apache.activemq.kaha.impl.CachedListContainerImplTest
  • org.apache.activemq.kaha.impl.container.BaseContainerImpl
  • org.apache.activemq.kaha.impl.container.ContainerKeySet
  • org.apache.activemq.kaha.impl.container.ContainerListIterator
  • org.apache.activemq.kaha.impl.container.ContainerValueCollection
  • org.apache.activemq.kaha.impl.container.ListContainerImpl
  • org.apache.activemq.kaha.impl.container.MapContainerImpl
  • org.apache.activemq.kaha.impl.data.DataItem
  • org.apache.activemq.kaha.impl.index.hash.HashTest
  • org.apache.activemq.kaha.impl.index.tree.TreeTest
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