org.bouncycastle.cms.SignerInformationStore Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of bcpkix-jdk15on Show documentation

The Bouncy Castle Java APIs for CMS, PKCS, EAC, TSP, CMP, CRMF, OCSP, and certificate generation. This jar contains APIs for JDK 1.5 to JDK 1.8. The APIs can be used in conjunction with a JCE/JCA provider such as the one provided with the Bouncy Castle Cryptography APIs.

There is a newer version: 1.70

Show newest version

package org.bouncycastle.cms;

import java.util.ArrayList;
import java.util.Collection;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import java.util.Map;

public class SignerInformationStore
{
    private List all = new ArrayList();
    private Map table = new HashMap();

    public SignerInformationStore(
        Collection  signerInfos)
    {
        Iterator    it = signerInfos.iterator();

        while (it.hasNext())
        {
            SignerInformation   signer = (SignerInformation)it.next();
            SignerId            sid = signer.getSID();

            List list = (ArrayList)table.get(sid);
            if (list == null)
            {
                list = new ArrayList(1);
                table.put(sid, list);
            }

            list.add(signer);
        }

        this.all = new ArrayList(signerInfos);
    }

    /**
     * Return the first SignerInformation object that matches the
     * passed in selector. Null if there are no matches.
     * 
     * @param selector to identify a signer
     * @return a single SignerInformation object. Null if none matches.
     */
    public SignerInformation get(
        SignerId        selector)
    {
        Collection list = getSigners(selector);

        return list.size() == 0 ? null : (SignerInformation) list.iterator().next();
    }

    /**
     * Return the number of signers in the collection.
     * 
     * @return number of signers identified.
     */
    public int size()
    {
        return all.size();
    }

    /**
     * Return all signers in the collection
     * 
     * @return a collection of signers.
     */
    public Collection getSigners()
    {
        return new ArrayList(all);
    }

    /**
     * Return possible empty collection with signers matching the passed in SignerId
     * 
     * @param selector a signer id to select against.
     * @return a collection of SignerInformation objects.
     */
    public Collection getSigners(
        SignerId selector)
    {
        if (selector.getIssuer() != null && selector.getSubjectKeyIdentifier() != null)
        {
            List results = new ArrayList();

            Collection match1 = getSigners(new SignerId(selector.getIssuer(), selector.getSerialNumber()));

            if (match1 != null)
            {
                results.addAll(match1);
            }

            Collection match2 = getSigners(new SignerId(selector.getSubjectKeyIdentifier()));

            if (match2 != null)
            {
                results.addAll(match2);
            }

            return results;
        }
        else
        {
            List list = (ArrayList)table.get(selector);

            return list == null ? new ArrayList() : new ArrayList(list);
        }
    }
}