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/*
 * Copyright 2016 Goldman Sachs.
 *
 * Licensed 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 com.gs.dmn.context.environment;

import com.gs.dmn.runtime.function.Function;

import java.util.LinkedHashMap;
import java.util.Map;

public class RuntimeEnvironment {
    public static RuntimeEnvironment of() {
        return new RuntimeEnvironment();
    }

    private final Map bindings = new LinkedHashMap<>();

    RuntimeEnvironment() {
    }

    public void bind(String key, Object value) {
        this.bindings.put(key, value);
    }

    public Object lookupLocalBinding(String key) {
        return this.bindings.get(key);
    }

    public Object lookupLocalFunctionBinding(String key) {
        return this.bindings.get(key);
    }

    public boolean isLocalBound(String key) {
        return this.bindings.containsKey(key);
    }

    public boolean isLocalFunctionBound(String key) {
        return this.bindings.containsKey(key) && this.bindings.get(key) instanceof Function;
    }
}