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/*
 * This file is part of ClassGraph.
 *
 * Author: Luke Hutchison
 *
 * Hosted at: https://github.com/classgraph/classgraph
 *
 * --
 *
 * The MIT License (MIT)
 *
 * Copyright (c) 2019 Luke Hutchison
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated
 * documentation files (the "Software"), to deal in the Software without restriction, including without
 * limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
 * the Software, and to permit persons to whom the Software is furnished to do so, subject to the following
 * conditions:
 *
 * The above copyright notice and this permission notice shall be included in all copies or substantial
 * portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT
 * LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO
 * EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
 * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE
 * OR OTHER DEALINGS IN THE SOFTWARE.
 */
package com.hazelcast.shaded.io.github.classgraph;

import java.util.Collection;
import java.util.Map;
import java.util.Set;

import com.hazelcast.shaded.nonapi.io.github.classgraph.utils.LogNode;

/** A list of {@link FieldInfo} objects. */
public class FieldInfoList extends MappableInfoList {
    /** serialVersionUID */
    private static final long serialVersionUID = 1L;

    /** An unmodifiable empty {@link FieldInfoList}. */
    static final FieldInfoList EMPTY_LIST = new FieldInfoList();
    static {
        EMPTY_LIST.makeUnmodifiable();
    }

    /**
     * Return an unmodifiable empty {@link FieldInfoList}.
     *
     * @return the unmodifiable empty {@link FieldInfoList}.
     */
    public static FieldInfoList emptyList() {
        return EMPTY_LIST;
    }

    /**
     * Construct a new modifiable empty list of {@link FieldInfo} objects.
     */
    public FieldInfoList() {
        super();
    }

    /**
     * Construct a new modifiable empty list of {@link FieldInfo} objects, given a size hint.
     *
     * @param sizeHint
     *            the size hint
     */
    public FieldInfoList(final int sizeHint) {
        super(sizeHint);
    }

    /**
     * Construct a new modifiable empty {@link FieldInfoList}, given an initial list of {@link FieldInfo} objects.
     *
     * @param fieldInfoCollection
     *            the collection of {@link FieldInfo} objects.
     */
    public FieldInfoList(final Collection fieldInfoCollection) {
        super(fieldInfoCollection);
    }

    // -------------------------------------------------------------------------------------------------------------

    /**
     * Get {@link ClassInfo} objects for any classes referenced in the list.
     *
     * @param classNameToClassInfo
     *            the map from class name to {@link ClassInfo}.
     * @param refdClassInfo
     *            the referenced class info
     * @param log
     *            the log
     */
    protected void findReferencedClassInfo(final Map classNameToClassInfo,
            final Set refdClassInfo, final LogNode log) {
        for (final FieldInfo fi : this) {
            fi.findReferencedClassInfo(classNameToClassInfo, refdClassInfo, log);
        }
    }

    // -------------------------------------------------------------------------------------------------------------

    /**
     * Filter an {@link FieldInfoList} using a predicate mapping an {@link FieldInfo} object to a boolean, producing
     * another {@link FieldInfoList} for all items in the list for which the predicate is true.
     */
    @FunctionalInterface
    public interface FieldInfoFilter {
        /**
         * Whether or not to allow an {@link FieldInfo} list item through the filter.
         *
         * @param fieldInfo
         *            The {@link FieldInfo} item to filter.
         * @return Whether or not to allow the item through the filter. If true, the item is copied to the output
         *         list; if false, it is excluded.
         */
        boolean accept(FieldInfo fieldInfo);
    }

    /**
     * Find the subset of the {@link FieldInfo} objects in this list for which the given filter predicate is true.
     *
     * @param filter
     *            The {@link FieldInfoFilter} to apply.
     * @return The subset of the {@link FieldInfo} objects in this list for which the given filter predicate is
     *         true.
     */
    public FieldInfoList filter(final FieldInfoFilter filter) {
        final FieldInfoList fieldInfoFiltered = new FieldInfoList();
        for (final FieldInfo resource : this) {
            if (filter.accept(resource)) {
                fieldInfoFiltered.add(resource);
            }
        }
        return fieldInfoFiltered;
    }
}