org.openprovenance.prov.service.core.ExtendedDocumentResourceIndexFactory Maven / Gradle / Ivy

package org.openprovenance.prov.service.core;

import org.openprovenance.prov.storage.api.DocumentResource;
import org.openprovenance.prov.storage.api.Instantiable;
import org.openprovenance.prov.storage.api.ResourceIndex;

public class ExtendedDocumentResourceIndexFactory  implements ResourceIndex {

    private final ResourceIndex eri;
    private final Instantiable factory;
    protected final ResourceIndex dri;

    public ExtendedDocumentResourceIndexFactory(ResourceIndex dri, Instantiable factory) {
        this.dri=dri;
        this.eri =(ResourceIndex)dri;  //TODO: is this right?
        this.factory=factory;
    }

    public EXTENDED_RESOURCE newResource(DocumentResource dr) {
        final EXTENDED_RESOURCE extended_resource = factory.newResource(dr);
        return extended_resource;
    }

    @Override
    public EXTENDED_RESOURCE get(String key) {
        return  eri.get(key);
    }

    @Override
    public void put(String key, EXTENDED_RESOURCE dr) {
        eri.put(key,dr);
    }

    @Override
    public void remove(String key) {
        eri.remove(key);
    }

    @Override
    public String newId() {
        return eri.newId();
    }

    @Override
    public EXTENDED_RESOURCE newResource() {
        return factory.newResource();
    }


    @Override
    public ResourceIndex.StorageKind kind() {
        return eri.kind();
    }

    @Override
    public ResourceIndex getAncestor() {
        return dri;
    }

    /**
     * Returns a thread safe instance.
     */
    @Override
    public ResourceIndex getIndex() {
        return null;
    }

    @Override
    public void close() {

    }
/*
    @Override
    public  ExtendedDocumentResourceIndexFactory getExtender(Instantiable factory2) {
        return new ExtendedDocumentResourceIndexFactory(dri,factory2);
    }

 */
}