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Minimal Java framework to extract media information using the native MediaInfo tool.
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/*
 * This file is part of VLCJ.
 *
 * VLCJ is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * VLCJ is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with VLCJ.  If not, see .
 *
 * Copyright 2015-2021 Caprica Software Limited.
 */

package uk.co.caprica.vlcjinfo;

import java.math.BigDecimal;
import java.util.Collections;
import java.util.Iterator;
import java.util.Map;
import java.util.TreeMap;

/**
 * Encapsulation of a section.
 */
public final class Section implements Iterable {

    /**
     * Map of key, value pairs for the section.
     */
    private final Map values = new TreeMap();

    /**
     * Create a section.
     */
    Section() {
    }

    /**
     * Add a key, value pair.
     *
     * @param key key
     * @param value value
     */
    void put(String key, String value) {
        values.put(key, value);
    }

    /**
     * Get all values for a section.
     *
     * @return map of all key/value attributes for a section
     */
    public Map values() {
        return Collections.unmodifiableMap(values);
    }

    /**
     * Get the value for a particular key.
     *
     * @param key key to get the value for
     * @return value, or null if the key is not in the section
     */
    public String value(String key) {
        return values.get(key);
    }

    /**
     * Get an integer value for a particular key.
     *
     * @param key key to get the value for
     * @return integer value, or null if the key is not in the section
     */
    public Integer integer(String key) {
        return Conversions.integer(value(key));
    }

    /**
     * Get a big decimal value for a particular key.
     *
     * @param key key to get the value for
     * @return big decimal value, or null if the key is not in the section
     */
    public BigDecimal decimal(String key) {
        return Conversions.decimal(value(key));
    }

    /**
     * Get a duration value for a particular key.
     *
     * @param key key to get the value for
     * @return duration value, or null if the key is not in the section
     */
    public Duration duration(String key) {
        return Conversions.duration(value(key));
    }

    @Override
    public Iterator iterator() {
        return values.keySet().iterator();
    }

    @Override
    public String toString() {
        StringBuilder sb = new StringBuilder(100);
        sb.append(getClass().getSimpleName()).append('[');
        sb.append("values=").append(values).append(']');
        return sb.toString();
    }
}