001/**
002 *
003 * Copyright 2017 Paul Schaub
004 *
005 * Licensed under the Apache License, Version 2.0 (the "License");
006 * you may not use this file except in compliance with the License.
007 * You may obtain a copy of the License at
008 *
009 *     http://www.apache.org/licenses/LICENSE-2.0
010 *
011 * Unless required by applicable law or agreed to in writing, software
012 * distributed under the License is distributed on an "AS IS" BASIS,
013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
014 * See the License for the specific language governing permissions and
015 * limitations under the License.
016 */
017package org.jivesoftware.smackx.omemo.exceptions;
018
019import java.util.Collections;
020import java.util.Iterator;
021import java.util.List;
022
023public final class MultipleCryptoFailedException extends CryptoFailedException {
024
025    private static final long serialVersionUID = 1L;
026
027    private final List<CryptoFailedException> cryptoFailedExceptions;
028
029    private MultipleCryptoFailedException(String message, List<CryptoFailedException> cryptoFailedExceptions) {
030        super(message);
031        this.cryptoFailedExceptions = Collections.unmodifiableList(cryptoFailedExceptions);
032        if (cryptoFailedExceptions.isEmpty()) {
033            throw new IllegalArgumentException("Exception list must not be empty.");
034        }
035    }
036
037    public static MultipleCryptoFailedException from(List<CryptoFailedException> cryptoFailedExceptions) {
038        StringBuilder sb = new StringBuilder("Multiple CryptoFailedExceptions: ");
039        Iterator<CryptoFailedException> it = cryptoFailedExceptions.iterator();
040        while (it.hasNext()) {
041            sb.append(it.next());
042            if (it.hasNext()) {
043                sb.append(", ");
044            }
045        }
046        return new MultipleCryptoFailedException(sb.toString(), cryptoFailedExceptions);
047    }
048
049    public List<CryptoFailedException> getCryptoFailedExceptions() {
050        return cryptoFailedExceptions;
051    }
052}