org.bouncycastle.asn1.cms.ContentInfoParser.java Source code

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Here is the source code for org.bouncycastle.asn1.cms.ContentInfoParser.java

Source

package org.bouncycastle.asn1.cms;

import java.io.IOException;

import org.bouncycastle.asn1.ASN1Encodable;
import org.bouncycastle.asn1.ASN1ObjectIdentifier;
import org.bouncycastle.asn1.ASN1SequenceParser;
import org.bouncycastle.asn1.ASN1TaggedObjectParser;

/**
 * <a href="http://tools.ietf.org/html/rfc5652#section-3">RFC 5652</a> {@link ContentInfo} object parser.
 *
 * <pre>
 * ContentInfo ::= SEQUENCE {
 *     contentType ContentType,
 *     content [0] EXPLICIT ANY DEFINED BY contentType OPTIONAL }
 * </pre>
 */
public class ContentInfoParser {
    private ASN1ObjectIdentifier contentType;
    private ASN1TaggedObjectParser content;

    public ContentInfoParser(ASN1SequenceParser seq) throws IOException {
        contentType = (ASN1ObjectIdentifier) seq.readObject();
        content = (ASN1TaggedObjectParser) seq.readObject();
    }

    public ASN1ObjectIdentifier getContentType() {
        return contentType;
    }

    public ASN1Encodable getContent(int tag) throws IOException {
        if (content != null) {
            return content.getObjectParser(tag, true);
        }

        return null;
    }
}