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Subject.java
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99 lines (88 loc) · 2.27 KB
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/*-
* =LICENSE=
* ORAS Java SDK
* ===
* Copyright (C) 2024 - 2025 ORAS
* ===
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
* =LICENSEEND=
*/
package land.oras;
import land.oras.utils.JsonUtils;
import org.jspecify.annotations.NullMarked;
/**
* Class for subject
*/
@NullMarked
public final class Subject {
private final String mediaType;
private final String digest;
private final long size;
/**
* Constructor
* @param mediaType The media type
* @param digest The digest
* @param size The size
*/
private Subject(String mediaType, String digest, long size) {
this.mediaType = mediaType;
this.digest = digest;
this.size = size;
}
/**
* Get the media type
* @return The media type
*/
public String getMediaType() {
return mediaType;
}
/**
* Get the digest
* @return The digest
*/
public String getDigest() {
return digest;
}
/**
* Get the size
* @return The size
*/
public long getSize() {
return size;
}
/**
* Return the JSON representation of the manifest
* @return The JSON string
*/
public String toJson() {
return JsonUtils.toJson(this);
}
/**
* Create a subject
* @param mediaType The media type
* @param digest The digest
* @param size The size
* @return The subject
*/
public static Subject of(String mediaType, String digest, long size) {
return new Subject(mediaType, digest, size);
}
/**
* Create a subject from a JSON string
* @param json The JSON string
* @return The subject
*/
public static Subject fromJson(String json) {
return JsonUtils.fromJson(json, Subject.class);
}
}