106 lines
3.2 KiB
Java
106 lines
3.2 KiB
Java
/*
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* Copyright (C) 2017 Schürmann & Breitmoser GbR
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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package org.sufficientlysecure.keychain.keyimport;
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import java.util.ArrayList;
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import java.util.Collection;
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/**
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* Just an ArrayList, only with a synchronized dupe-merging add/addAll, and a sign-off method
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*/
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public class ImportKeysList extends ArrayList<ImportKeysListEntry> {
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private int mSupplierCount;
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public ImportKeysList(int supplierCount) {
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mSupplierCount = supplierCount;
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}
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@Override
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public boolean add(ImportKeysListEntry toAdd) {
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addOrMerge(toAdd);
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return true; // that’s what the ArrayList#add contract says
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}
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@Override
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public boolean addAll(Collection<? extends ImportKeysListEntry> addThese) {
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boolean modified = false;
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for (ImportKeysListEntry toAdd : addThese) {
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modified = addOrMerge(toAdd) || modified;
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}
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return modified;
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}
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// NOTE: side-effects
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// NOTE: synchronized
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private synchronized boolean addOrMerge(ImportKeysListEntry toAdd) {
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for (ImportKeysListEntry existing : this) {
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if (toAdd.hasSameKeyAs(existing)) {
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return mergeDupes(toAdd, existing);
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}
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}
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return super.add(toAdd);
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}
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// being a little anal about the ArrayList#addAll contract here
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private boolean mergeDupes(ImportKeysListEntry incoming, ImportKeysListEntry existing) {
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boolean modified = false;
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// if any source thinks it’s expired/revoked, it is
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if (incoming.isRevoked()) {
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existing.setRevoked(true);
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modified = true;
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}
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if (incoming.isExpired()) {
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existing.setExpired(true);
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modified = true;
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}
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if (!incoming.isSecure()) {
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existing.setSecure(false);
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modified = true;
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}
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if (incoming.getKeyserver() != null) {
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existing.setKeyserver(incoming.getKeyserver());
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existing.setPrimaryUserId(incoming.getPrimaryUserId());
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modified = true;
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} else if (incoming.getFbUsername() != null) {
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existing.setFbUsername(incoming.getFbUsername());
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modified = true;
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}
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if (existing.addUserIds(incoming.getUserIds()))
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modified = true;
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return modified;
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}
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// NOTE: synchronized
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public synchronized void finishedAdding() {
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mSupplierCount--;
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if (mSupplierCount == 0) {
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this.notify();
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}
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}
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public int outstandingSuppliers() {
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return mSupplierCount;
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}
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}
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