src/main/java/org/takes/facets/fork/MediaType.java
/*
* The MIT License (MIT)
*
* Copyright (c) 2014-2024 Yegor Bugayenko
*
* 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 NON-INFRINGEMENT. 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 org.takes.facets.fork;
import java.util.regex.Pattern;
import lombok.EqualsAndHashCode;
import lombok.ToString;
import org.cactoos.Text;
import org.cactoos.text.Lowered;
import org.cactoos.text.TextOf;
import org.cactoos.text.Trimmed;
import org.cactoos.text.UncheckedText;
/**
* Media type.
*
* <p>The class is immutable and thread-safe.
*
* @since 0.6
* @see org.takes.facets.fork.FkTypes
* @todo #998:30min Please use {@link org.cactoos.text.Split} instead of
* {@link String.split} as an elegant way.
* To completely leverage the {@link org.cactoos.text.Split} here, it is
* required for the completion of issue
* https://github.com/yegor256/cactoos/issues/1251 and upgrading to that
* version of Cactoos.
*/
@ToString
@EqualsAndHashCode
final class MediaType implements Comparable<MediaType> {
/**
* Pattern matching non-digit symbols.
*/
private static final Pattern NON_DIGITS = Pattern.compile("[^0-9\\.]");
/**
* Priority.
*/
private final Double prio;
/**
* High part.
*/
private final String high;
/**
* Low part.
*/
private final String low;
/**
* Ctor.
* @param text Text to parse
*/
MediaType(final String text) {
this.prio = MediaType.priority(text);
this.high = MediaType.highPart(text);
this.low = MediaType.lowPart(text);
}
@Override
public int compareTo(final MediaType type) {
int cmp = this.prio.compareTo(type.prio);
if (cmp == 0) {
cmp = this.high.compareTo(type.high);
if (cmp == 0) {
cmp = this.low.compareTo(type.low);
}
}
return cmp;
}
/**
* Matches.
* @param type Another type
* @return TRUE if matches
* @checkstyle BooleanExpressionComplexityCheck (10 lines)
*/
public boolean matches(final MediaType type) {
final String star = "*";
return (this.high.equals(star)
|| type.high.equals(star)
|| this.high.equals(type.high))
&& (this.low.equals(star)
|| type.low.equals(star)
|| this.low.equals(type.low));
}
/**
* Splits the text parts.
* @param text The text to be split.
* @return Two first parts of the media type.
*/
private static String[] split(final String text) {
return text.split(";", 2);
}
/**
* Returns the media type priority.
* @param text The media type text.
* @return The priority of the media type.
*/
private static Double priority(final String text) {
final String[] parts = MediaType.split(text);
final Double priority;
if (parts.length > 1) {
final String num =
MediaType.NON_DIGITS.matcher(parts[1]).replaceAll("");
if (num.isEmpty()) {
priority = 0.0d;
} else {
priority = Double.parseDouble(num);
}
} else {
priority = 1.0d;
}
return priority;
}
/**
* Returns the high part of the media type.
* @param text The media type text.
* @return The high part of the media type.
*/
private static String highPart(final String text) {
return MediaType.sectors(text)[0];
}
/**
* Returns the low part of the media type.
* @param text The media type text.
* @return The low part of the media type.
*/
private static String lowPart(final String text) {
final String[] sectors = MediaType.sectors(text);
final Text sector;
if (sectors.length > 1) {
sector = new Trimmed(new TextOf(sectors[1]));
} else {
sector = new TextOf("");
}
return new UncheckedText(sector).asString();
}
/**
* Returns the media type sectors.
* @param text The media type text.
* @return String array with the sectors of the media type.
*/
private static String[] sectors(final String text) {
return new UncheckedText(
new Lowered(MediaType.split(text)[0])
).asString()
.split(
"/", 2
);
}
}