| /* |
| * Copyright 2014 Open Networking Laboratory |
| * |
| * 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.onosproject.net.flow; |
| |
| import java.util.Collection; |
| import java.util.Collections; |
| import java.util.LinkedList; |
| import java.util.List; |
| |
| import static com.google.common.base.Preconditions.checkNotNull; |
| |
| /** |
| * A list of BatchOperationEntry. |
| * |
| * @param <T> the enum of operators <br> |
| * This enum must be defined in each sub-classes. |
| */ |
| public abstract class BatchOperation<T extends BatchOperationEntry<?, ?>> { |
| |
| private final List<T> ops; |
| |
| /** |
| * Creates new {@link BatchOperation} object. |
| */ |
| public BatchOperation() { |
| ops = new LinkedList<>(); |
| } |
| |
| /** |
| * Creates {@link BatchOperation} object from a list of batch operation |
| * entries. |
| * |
| * @param batchOperations the list of batch operation entries. |
| */ |
| public BatchOperation(Collection<T> batchOperations) { |
| ops = new LinkedList<>(checkNotNull(batchOperations)); |
| } |
| |
| /** |
| * Removes all operations maintained in this object. |
| */ |
| public void clear() { |
| ops.clear(); |
| } |
| |
| /** |
| * Returns the number of operations in this object. |
| * |
| * @return the number of operations in this object |
| */ |
| public int size() { |
| return ops.size(); |
| } |
| |
| /** |
| * Returns the operations in this object. |
| * |
| * @return the operations in this object |
| */ |
| public List<T> getOperations() { |
| return Collections.unmodifiableList(ops); |
| } |
| |
| /** |
| * Adds an operation. |
| * FIXME: Brian promises that the Intent Framework |
| * will not modify the batch operation after it has submitted it. |
| * Ali would prefer immutablity, but trusts brian for better or |
| * for worse. |
| * |
| * @param entry the operation to be added |
| * @return this object if succeeded, null otherwise |
| */ |
| public BatchOperation<T> addOperation(T entry) { |
| return ops.add(entry) ? this : null; |
| } |
| |
| /** |
| * Add all operations from another batch to this batch. |
| * |
| * @param another another batch |
| * @return true if success |
| */ |
| public boolean addAll(BatchOperation<T> another) { |
| return ops.addAll(another.getOperations()); |
| } |
| |
| @Override |
| public boolean equals(Object o) { |
| if (this == o) { |
| return true; |
| } |
| |
| if (o == null) { |
| return false; |
| } |
| |
| if (getClass() != o.getClass()) { |
| return false; |
| } |
| BatchOperation<?> other = (BatchOperation<?>) o; |
| |
| return this.ops.equals(other.ops); |
| } |
| |
| @Override |
| public int hashCode() { |
| return ops.hashCode(); |
| } |
| |
| @Override |
| public String toString() { |
| return ops.toString(); |
| } |
| } |