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/**
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */
package org.drools.reliability.infinispan.proto;

import org.drools.core.common.Storage;
import org.drools.reliability.core.ReliableGlobalResolver;

public class ProtoStreamReliableGlobalResolver extends ReliableGlobalResolver {

    public ProtoStreamReliableGlobalResolver(Storage storage) {
        super(storage);
    }

    @Override
    public Object resolveGlobal(String identifier) {
        // Use an in-memory global reference. Avoid getting a stale object from storage
        if (toBeRefreshed.containsKey(identifier)) {
            return toBeRefreshed.get(identifier);
        }
        ProtoStreamGlobal protoGlobal = (ProtoStreamGlobal)storage.get(identifier);
        Object global = protoGlobal.getObject();
        toBeRefreshed.put(identifier, global);
        return global;
    }

    @Override
    public void setGlobal(String identifier, Object value) {
        storage.put(identifier, new ProtoStreamGlobal(value));
    }

    @Override
    public void updateStorage() {
        if (!toBeRefreshed.isEmpty()) {
            toBeRefreshed.forEach((k, v) -> storage.put(k, new ProtoStreamGlobal(v)));
            toBeRefreshed.clear();
        }
    }
}