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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.apache.tinkerpop.gremlin.groovy.engine;

import javax.script.SimpleBindings;
import java.util.Map;
import java.util.concurrent.ConcurrentHashMap;

/**
 * A {@code Bindings} that can be accessed concurrently by multiple threads. It is needed in cases where "global"
 * bindings are required for the {@code ScriptEngine}.
 *
 * @author Stephen Mallette (http://stephen.genoprime.com)
 */
public class ConcurrentBindings extends SimpleBindings {

    public ConcurrentBindings() {
        super(new ConcurrentHashMap<>());
    }

    public ConcurrentBindings(final Map m) {
        // initialize the bindings first with a ConcurrentHashMap and then copy in the bindings
        this();
        this.putAll(m);
    }
}