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/*
 * SPDX-License-Identifier: Apache-2.0
 *
 * The OpenSearch Contributors require contributions made to
 * this file be licensed under the Apache-2.0 license or a
 * compatible open source license.
 */

/*
 * Copyright (C) 2008 Google Inc.
 *
 * 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.
 */

/*
 * Modifications Copyright OpenSearch Contributors. See
 * GitHub history for details.
 */

package org.opensearch.common.inject.internal;

import org.opensearch.common.inject.Binder;
import org.opensearch.common.inject.Injector;
import org.opensearch.common.inject.Key;
import org.opensearch.common.inject.spi.BindingTargetVisitor;
import org.opensearch.common.inject.spi.Dependency;
import org.opensearch.common.inject.spi.ExposedBinding;
import org.opensearch.common.inject.spi.PrivateElements;

import java.util.Set;

import static java.util.Collections.singleton;

/**
 * Exposed binding implementation
 *
 * @opensearch.internal
 */
public class ExposedBindingImpl extends BindingImpl implements ExposedBinding {

    private final PrivateElements privateElements;

    public ExposedBindingImpl(Injector injector, Object source, Key key, InternalFactory factory, PrivateElements privateElements) {
        super(injector, key, source, factory, Scoping.UNSCOPED);
        this.privateElements = privateElements;
    }

    public ExposedBindingImpl(Object source, Key key, Scoping scoping, PrivateElements privateElements) {
        super(source, key, scoping);
        this.privateElements = privateElements;
    }

    @Override
    public  V acceptTargetVisitor(BindingTargetVisitor visitor) {
        return visitor.visit(this);
    }

    @Override
    public Set> getDependencies() {
        return singleton(Dependency.get(Key.get(Injector.class)));
    }

    @Override
    public PrivateElements getPrivateElements() {
        return privateElements;
    }

    @Override
    public BindingImpl withScoping(Scoping scoping) {
        return new ExposedBindingImpl<>(getSource(), getKey(), scoping, privateElements);
    }

    @Override
    public ExposedBindingImpl withKey(Key key) {
        return new ExposedBindingImpl<>(getSource(), key, getScoping(), privateElements);
    }

    @Override
    public String toString() {
        return new ToStringBuilder(ExposedBinding.class).add("key", getKey())
            .add("source", getSource())
            .add("privateElements", privateElements)
            .toString();
    }

    @Override
    public void applyTo(Binder binder) {
        throw new UnsupportedOperationException("This element represents a synthetic binding.");
    }
}