org.eolang.maven.hash.ChNarrow Maven / Gradle / Ivy
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/*
* The MIT License (MIT)
*
* Copyright (c) 2016-2024 Objectionary.com
*
* 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.eolang.maven.hash;
/**
* Short version of hash.
*
* @since 0.28.11
*/
public final class ChNarrow implements CommitHash {
/**
* Delegate.
*/
private final CommitHash full;
/**
* The main constructor.
*
* @param full Delegate
*/
public ChNarrow(final CommitHash full) {
this.full = full;
}
@Override
public String value() {
final String hash = this.validHash();
return hash.substring(0, Math.min(7, hash.length()));
}
/**
* Valid hash.
*
* @return Full valid hash.
*/
private String validHash() {
final String hash = this.full.value();
if (hash.isEmpty()) {
throw new IllegalArgumentException(
String.format("Hash can't be empty. The delegate %s", this.full)
);
}
return hash;
}
}