using System;
using System.Collections;
using System.IO;
namespace Org.BouncyCastle.Cms{
public class SignerInformationStore
{
private readonly ArrayList all; //ArrayList[SignerInformation]
private readonly Hashtable table = new Hashtable(); // Hashtable[SignerID, ArrayList[SignerInformation]]
public SignerInformationStore(
ICollection signerInfos)
{
foreach (SignerInformation signer in signerInfos)
{
SignerID sid = signer.SignerID;
ArrayList list = (ArrayList) table[sid];
if (list == null)
{
table[sid] = list = new ArrayList(1);
}
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 GetFirstSigner(
SignerID selector)
{
ArrayList list = (ArrayList) table[selector];
return list == null ? null : (SignerInformation) list[0];
}
/// <summary>The number of signers in the collection.</summary>
public int Count
{
get { return all.Count; }
}
/// <returns>An ICollection of all signers in the collection</returns>
public ICollection 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 ICollection GetSigners(
SignerID selector)
{
ArrayList list = (ArrayList) table[selector];
return list == null ? new ArrayList() : new ArrayList(list);
}
}
}
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