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Smack/smack-core/src/main/java/org/jivesoftware/smack/util/CollectionUtil.java
Florian Schmaus e98d42790a SmackReactor/NIO, Java8/Android19, Pretty print XML, FSM connections
This commit adds
- SmackReactor / NIO
- a framework for finite state machine connections
- support for Java 8
- pretty printed XML debug output

It also
- reworks the integration test framework
- raises the minimum Android API level to 19
- introduces XmppNioTcpConnection

Furthermore fixes SMACK-801 (at least partly). Java 8 language
features are available, but not all runtime library methods. For that
we would need to raise the Android API level to 24 or higher.
2019-02-05 13:18:03 +01:00

53 lines
1.7 KiB
Java

/**
*
* Copyright 2015-2018 Florian Schmaus
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.jivesoftware.smack.util;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Iterator;
import java.util.List;
public class CollectionUtil {
public static <T> Collection<T> requireNotEmpty(Collection<T> collection, String collectionName) {
if (collection == null) {
throw new NullPointerException(collectionName + " must not be null.");
}
if (collection.isEmpty()) {
throw new IllegalArgumentException(collectionName + " must not be empty.");
}
return collection;
}
public static <T, C extends Collection<T>> List<T> removeUntil(C collection, Predicate<T> predicate) {
List<T> removedElements = new ArrayList<>(collection.size());
for (Iterator<T> it = collection.iterator(); it.hasNext();) {
T t = it.next();
if (predicate.test(t)) {
break;
}
removedElements.add(t);
it.remove();
}
return removedElements;
}
public interface Predicate<T> {
boolean test(T t);
}
}