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This module is a library used to validate Smithy models, create filtered projections of a model, and generate build artifacts.

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/*
 * Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
 *
 * Licensed under the Apache License, Version 2.0 (the "License").
 * You may not use this file except in compliance with the License.
 * A copy of the License is located at
 *
 *  http://aws.amazon.com/apache2.0
 *
 * or in the "license" file accompanying this file. This file 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 software.amazon.smithy.build;

import java.util.Objects;

final class PluginId {
    private final String pluginName;
    private final String artifactName;

    PluginId(String pluginName, String artifactName) {
        this.pluginName = Objects.requireNonNull(pluginName);
        this.artifactName = artifactName;
    }

    static PluginId from(String identifier) {
        String pluginName = identifier;
        String artifactName = null;

        int separatorPosition = identifier.indexOf("::");
        if (separatorPosition > -1) {
            pluginName = identifier.substring(0, separatorPosition);
            artifactName = identifier.substring(separatorPosition + 2);
        }

        return new PluginId(pluginName, artifactName);
    }

    String getPluginName() {
        return pluginName;
    }

    String getArtifactName() {
        return hasArtifactName() ? artifactName : pluginName;
    }

    boolean hasArtifactName() {
        return artifactName != null;
    }

    @Override
    public String toString() {
        if (!hasArtifactName()) {
            return pluginName;
        } else {
            return pluginName + "::" + artifactName;
        }
    }

    @Override
    public boolean equals(Object o) {
        if (this == o) {
            return true;
        } else if (!(o instanceof PluginId)) {
            return false;
        } else {
            PluginId pluginId = (PluginId) o;
            return pluginName.equals(pluginId.pluginName) && Objects.equals(artifactName, pluginId.artifactName);
        }
    }

    @Override
    public int hashCode() {
        return Objects.hash(pluginName, artifactName);
    }
}