/**
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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.waveprotocol.wave.model.testing;
import org.waveprotocol.wave.model.operation.Operation;
import org.waveprotocol.wave.model.operation.SilentOperationSink;
import java.util.Collections;
import java.util.LinkedList;
import java.util.List;
/**
* A place where you can get a concrete OperationSink.Silent for testing.
*
* @author zdwang@google.com (David Wang)
*/
public class FakeSilentOperationSink<T extends Operation<?>> implements SilentOperationSink<T> {
private LinkedList<T> ops = new LinkedList<T>();
/**
* For unit testing
* @return the most recently consumed op
*/
public T getConsumedOp() {
int size = ops.size();
return (size == 0) ? null : (ops.get(size - 1));
}
/**
* {@inheritDoc}
*/
public void consume(T op) {
ops.addLast(op);
}
/**
* Clears the list of saved operations.
*/
public void clear() {
ops.clear();
}
/**
* Gets the list of operations consumed by this sink since it was last
* cleared.
*
* @return the ops, from first consumed through most recently consumed.
*/
public List<T> getOps() {
return Collections.unmodifiableList(ops);
}
}