/**
 * Copyright (c) 2014, WSO2 Inc. (http://www.wso2.org) All Rights Reserved.
 *
 * WSO2 Inc. 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.apache.synapse.aspects.flow.statistics.store;

import org.apache.synapse.aspects.flow.statistics.structuring.StructuringArtifact;

import java.util.LinkedList;
import java.util.List;

public class CompletedStructureStore {

    private final List<StructuringArtifact> completedStructures;

    public CompletedStructureStore() {
        completedStructures = new LinkedList<>();
    }

    public boolean isEmpty() {
        return completedStructures.isEmpty();
    }

    public void putCompletedStatisticEntry(StructuringArtifact structuringArtifact) {
        synchronized (completedStructures) {
            completedStructures.add(structuringArtifact);
        }
    }

    public List<StructuringArtifact> getCompletedStructureEntries() {
        List<StructuringArtifact> clonedCompletedStructures = new LinkedList<>();
        synchronized (completedStructures) {
            clonedCompletedStructures.addAll(completedStructures);
            completedStructures.clear();
        }
        return clonedCompletedStructures;
    }
}
