SecretKeyRingSelectionStrategy.java
// SPDX-FileCopyrightText: 2018 Paul Schaub <vanitasvitae@fsfe.org>
//
// SPDX-License-Identifier: Apache-2.0
package org.pgpainless.util.selection.keyring;
import javax.annotation.Nonnull;
import java.util.HashSet;
import java.util.Iterator;
import java.util.Set;
import org.bouncycastle.openpgp.PGPSecretKeyRing;
import org.bouncycastle.openpgp.PGPSecretKeyRingCollection;
import org.pgpainless.util.MultiMap;
public abstract class SecretKeyRingSelectionStrategy<O> implements KeyRingSelectionStrategy<PGPSecretKeyRing, PGPSecretKeyRingCollection, O> {
@Override
public Set<PGPSecretKeyRing> selectKeyRingsFromCollection(O identifier, @Nonnull PGPSecretKeyRingCollection keyRingCollection) {
Set<PGPSecretKeyRing> accepted = new HashSet<>();
for (Iterator<PGPSecretKeyRing> i = keyRingCollection.getKeyRings(); i.hasNext(); ) {
PGPSecretKeyRing ring = i.next();
if (accept(identifier, ring)) accepted.add(ring);
}
return accepted;
}
@Override
public MultiMap<O, PGPSecretKeyRing> selectKeyRingsFromCollections(@Nonnull MultiMap<O, PGPSecretKeyRingCollection> keyRingCollections) {
MultiMap<O, PGPSecretKeyRing> keyRings = new MultiMap<>();
for (O identifier : keyRingCollections.keySet()) {
for (PGPSecretKeyRingCollection collection : keyRingCollections.get(identifier)) {
keyRings.put(identifier, selectKeyRingsFromCollection(identifier, collection));
}
}
return keyRings;
}
}