Examples with LocalResource org.apache.hyracks.storage.common.LocalResource used on opensource projects

Example 11 with LocalResource

use of org.apache.hyracks.storage.common.LocalResource in project asterixdb by apache.

the class IndexBuilder method build.

@Override
public void build() throws HyracksDataException {
    IResourceLifecycleManager<IIndex> lcManager = storageManager.getLifecycleManager(ctx);
    synchronized (lcManager) {
        // The previous resource Id needs to be removed since calling IIndex.create() may possibly destroy any
        // physical artifact that the LocalResourceRepository is managing (e.g. a file containing the resource Id).
        // Once the index has been created, a new resource Id can be generated.
        ILocalResourceRepository localResourceRepository = storageManager.getLocalResourceRepository(ctx);
        LocalResource lr = localResourceRepository.get(resourceRef.getRelativePath());
        long resourceId = lr == null ? -1 : lr.getId();
        if (resourceId != -1) {
            localResourceRepository.delete(resourceRef.getRelativePath());
        }
        resourceId = resourceIdFactory.createId();
        IResource resource = localResourceFactory.createResource(resourceRef);
        lr = new LocalResource(resourceId, ITreeIndexFrame.Constants.VERSION, durable, resource);
        IIndex index = lcManager.get(resourceRef.getRelativePath());
        if (index != null) {
            //how is this right?????????? <needs to be fixed>
            //The reason for this is to handle many cases such as:
            //1. Crash while delete index is running (we don't do global cleanup on restart)
            //2. Node leaves and then join with old data
            lcManager.unregister(resourceRef.getRelativePath());
        } else {
            index = resource.createInstance(ctx);
        }
        index.create();
        try {
            localResourceRepository.insert(lr);
        } catch (IOException e) {
            throw HyracksDataException.create(e);
        }
        lcManager.register(resourceRef.getRelativePath(), index);
    }
}

Example 12 with LocalResource

use of org.apache.hyracks.storage.common.LocalResource in project asterixdb by apache.

the class IndexDataflowHelper method readIndex.

private LocalResource readIndex() throws HyracksDataException {
    // Get local resource
    LocalResource lr = getResource();
    if (lr == null) {
        throw new HyracksDataException("Index resource couldn't be found. Has it been created yet? Was it deleted?");
    }
    IResource resource = lr.getResource();
    index = resource.createInstance(ctx);
    return lr;
}

Example 13 with LocalResource

use of org.apache.hyracks.storage.common.LocalResource in project asterixdb by apache.

the class IndexDataflowHelper method open.

@Override
public void open() throws HyracksDataException {
    //Get local resource file
    synchronized (lcManager) {
        index = lcManager.get(resourceRef.getRelativePath());
        if (index == null) {
            LocalResource lr = readIndex();
            lcManager.register(lr.getPath(), index);
        }
        lcManager.open(resourceRef.getRelativePath());
    }
}

Example 14 with LocalResource

use of org.apache.hyracks.storage.common.LocalResource in project asterixdb by apache.

the class PersistentLocalResourceRepository method loadIndex.

private void loadIndex(File indexFile, Map<Long, LocalResource> resourcesMap) throws HyracksDataException {
    LOGGER.log(Level.INFO, "Loading index:" + indexFile.getName());
    if (indexFile.isDirectory()) {
        File[] metadataFiles = indexFile.listFiles(METADATA_FILES_FILTER);
        if (metadataFiles != null) {
            for (File metadataFile : metadataFiles) {
                LocalResource localResource = readLocalResource(metadataFile);
                LOGGER.log(Level.INFO, "Resource loaded " + localResource.getId() + ":" + localResource.getPath());
                resourcesMap.put(localResource.getId(), localResource);
            }
        }
    }
}

Example 15 with LocalResource

use of org.apache.hyracks.storage.common.LocalResource in project asterixdb by apache.

the class DatasetLifecycleManager method register.

@Override
public synchronized void register(String resourcePath, IIndex index) throws HyracksDataException {
    validateDatasetLifecycleManagerState();
    int did = getDIDfromResourcePath(resourcePath);
    LocalResource resource = resourceRepository.get(resourcePath);
    DatasetResource datasetResource = datasets.get(did);
    if (datasetResource == null) {
        datasetResource = getDatasetLifecycle(did);
    }
    datasetResource.register(resource, index);
}