80 lines
1.9 KiB
C#
80 lines
1.9 KiB
C#
using System;
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using System.Collections;
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namespace Org.BouncyCastle.Cms
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{
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public class RecipientInformationStore
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{
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private readonly ArrayList all; //ArrayList[RecipientInformation]
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private readonly Hashtable table = new Hashtable(); // Hashtable[RecipientID, ArrayList[RecipientInformation]]
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public RecipientInformationStore(
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ICollection recipientInfos)
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{
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foreach (RecipientInformation recipientInformation in recipientInfos)
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{
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RecipientID rid = recipientInformation.RecipientID;
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ArrayList list = (ArrayList) table[rid];
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if (list == null)
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{
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table[rid] = list = new ArrayList(1);
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}
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list.Add(recipientInformation);
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}
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this.all = new ArrayList(recipientInfos);
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}
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/**
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* Return the first RecipientInformation object that matches the
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* passed in selector. Null if there are no matches.
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*
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* @param selector to identify a recipient
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* @return a single RecipientInformation object. Null if none matches.
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*/
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public RecipientInformation GetFirstRecipient(
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RecipientID selector)
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{
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ArrayList list = (ArrayList) table[selector];
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return list == null ? null : (RecipientInformation) list[0];
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}
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/**
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* Return the number of recipients in the collection.
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*
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* @return number of recipients identified.
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*/
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public int Count
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{
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get { return all.Count; }
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}
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/**
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* Return all recipients in the collection
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*
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* @return a collection of recipients.
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*/
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public ICollection GetRecipients()
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{
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return new ArrayList(all);
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}
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/**
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* Return possible empty collection with recipients matching the passed in RecipientID
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*
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* @param selector a recipient id to select against.
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* @return a collection of RecipientInformation objects.
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*/
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public ICollection GetRecipients(
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RecipientID selector)
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{
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ArrayList list = (ArrayList) table[selector];
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return list == null ? new ArrayList() : new ArrayList(list);
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}
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}
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}
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