net.java.truecommons.key.spec.prompting.PromptingKeyManagerMap Maven / Gradle / Ivy

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Specifies a pluggable API for key management.

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/*
 * Copyright (C) 2005-2015 Schlichtherle IT Services.
 * All rights reserved. Use is subject to license terms.
 */
package net.java.truecommons.key.spec.prompting;

import java.util.Collections;
import java.util.HashMap;
import java.util.Map;
import javax.annotation.concurrent.Immutable;
import net.java.truecommons.key.spec.AbstractKeyManagerMap;
import net.java.truecommons.key.spec.KeyManager;
import net.java.truecommons.key.spec.prompting.PromptingKey.View;

/**
 * Implements a map for a single prompting key manager which will use the
 * prompting key provider view given to the
 * {@linkplain #PromptingKeyManagerMap constructor}.
 * This class is provided for convenience and may be used to ease the
 * implementation of a custom view for key prompting.
 *
 * @since  TrueCommons 2.2
 * @author Christian Schlichtherle
 */
@Immutable
public final class PromptingKeyManagerMap
extends AbstractKeyManagerMap {

    private final Map, KeyManager> managers;

    /**
     * Constructs a new prompting key manager service using the given view.
     *
     * @param  the type of the prompting keys.
     * @param clazz the class of the prompting keys.
     * @param view the view for the prompting key provider.
     */
    public > PromptingKeyManagerMap(
            final Class clazz,
            final View view) {
        final Map, KeyManager> map = new HashMap<>(2);
        map.put(clazz, new PromptingKeyManager<>(view));
        managers = Collections.unmodifiableMap(map);
    }

    @Override
    @SuppressWarnings("ReturnOfCollectionOrArrayField")
    public Map, KeyManager> get() { return managers; }
}