server/protocols/jmap-draft-integration-testing/jmap-draft-integration-testing-common/src/test/java/org/apache/james/jmap/draft/methods/integration/cucumber/ContentType.java

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 * to you under the Apache License, Version 2.0 (the            *
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package org.apache.james.jmap.draft.methods.integration.cucumber;

import java.util.Optional;

public class ContentType {

    public static ContentType from(String contentType) {
        return new ContentType(Optional.ofNullable(contentType));
    }

    public static ContentType noContentType() {
        return new ContentType(Optional.empty());
    }

    private final Optional<String> contentType;

    private ContentType(Optional<String> contentType) {
        this.contentType = contentType;
    }

    public Optional<String> value() {
        return contentType;
    }

    public String serializeToHeader() {
        return contentType
                .map(value -> "Content-Type: " + value + "\r\n")
                .orElse("");
    }
}