55 lines
1.9 KiB
Java
55 lines
1.9 KiB
Java
/*
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* Copyright 2018 Paul Schaub.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package org.pgpainless.key.selection.key;
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import java.util.HashSet;
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import java.util.Iterator;
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import java.util.Set;
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import org.bouncycastle.openpgp.PGPPublicKey;
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import org.bouncycastle.openpgp.PGPPublicKeyRing;
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import org.pgpainless.util.MultiMap;
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/**
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* Key Selection Strategy which accepts {@link PGPPublicKey}s that are accepted by the abstract method
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* {@link #accept(Object, Object)}.
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*
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* @param <O> Type that describes the owner of the key.
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*/
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public abstract class PublicKeySelectionStrategy<O> implements KeySelectionStrategy<PGPPublicKey, PGPPublicKeyRing, O> {
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@Override
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public Set<PGPPublicKey> selectKeysFromKeyRing(O identifier, PGPPublicKeyRing ring) {
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Set<PGPPublicKey> keys = new HashSet<>();
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for (Iterator<PGPPublicKey> i = ring.getPublicKeys(); i.hasNext(); ) {
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PGPPublicKey key = i.next();
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if (accept(identifier, key)) keys.add(key);
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}
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return keys;
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}
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@Override
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public MultiMap<O, PGPPublicKey> selectKeysFromKeyRings(MultiMap<O, PGPPublicKeyRing> keyRings) {
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MultiMap<O, PGPPublicKey> keys = new MultiMap<>();
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for (O identifier : keyRings.keySet()) {
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for (PGPPublicKeyRing ring : keyRings.get(identifier)) {
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keys.put(identifier, selectKeysFromKeyRing(identifier, ring));
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}
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}
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return keys;
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}
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}
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