edu.uiuc.ncsa.security.storage.AggregateStoreProvider Maven / Gradle / Ivy

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package edu.uiuc.ncsa.security.storage;

import edu.uiuc.ncsa.security.core.Store;

import javax.inject.Provider;
import java.util.ArrayList;

/**
 * Created by Jeff Gaynor

 * on 5/24/12 at  10:21 AM
 */
public class AggregateStoreProvider implements Provider {
    ArrayList> providers = new ArrayList>();

    public void addProvider(Provider x) {
        providers.add(x);
    }

    AggregateStore store;

    @Override
    public AggregateStore get() {
        Store[] stores = new Store[providers.size()];
        int i = 0;
        for (Provider p : providers) {
            stores[i++] = (Store) p.get();
        }
        if (store == null) {
            store = new AggregateStore(stores);
        }
        return store;
    }
}