org.dizitart.no2.sync.data.ChangeFeed Maven / Gradle / Ivy
/*
*
* Copyright 2017-2018 Nitrite author or authors.
*
* 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.dizitart.no2.sync.data;
import lombok.Getter;
import lombok.Setter;
import lombok.ToString;
import org.dizitart.no2.Document;
import org.dizitart.no2.event.ChangeType;
import java.io.Serializable;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import static org.dizitart.no2.event.ChangeType.REMOVE;
import static org.dizitart.no2.event.ChangeType.UPDATE;
/**
* Represents a cumulative changes (add, update, delete) in a collection.
*
* @author Anindya Chatterjee
* @since 1.0
*/
@ToString
public class ChangeFeed implements Serializable {
private static final long serialVersionUID = 1486043678L;
/**
* The originator of the sync request.
*
* @param originator the originator of the sync request
* @return the originator of the request.
* */
@Getter @Setter
private String originator;
/**
* The sequence number of the current feed.
*
* @param sequenceNumber the sequence number of the feed
* @return the sequence number of the feed.
* */
@Getter @Setter
private Long sequenceNumber;
private Map> changeBucket;
/**
* Instantiates a new {@link ChangeFeed}.
*/
public ChangeFeed() {
changeBucket = new HashMap<>();
}
/**
* Gets updated documents.
*
* @return the updated documents
*/
public List getModifiedDocuments() {
return changeBucket.get(UPDATE);
}
/**
* Gets removed ids.
*
* @return the removed ids
*/
public List getRemovedDocuments() {
return changeBucket.get(REMOVE);
}
/**
* Sets inserted documents.
*
* @param documents the documents
*/
public void setModifiedDocuments(List documents) {
List documentList = changeBucket.get(UPDATE);
if (documentList == null) {
documentList = new ArrayList<>();
}
if (documents != null) {
documentList.addAll(documents);
}
changeBucket.put(UPDATE, documentList);
}
/**
* Sets deleted documents.
*
* @param documents the documents
*/
public void setRemovedDocuments(List documents) {
List documentList = changeBucket.get(REMOVE);
if (documentList == null) {
documentList = new ArrayList<>();
}
if (documents != null) {
documentList.addAll(documents);
}
changeBucket.put(REMOVE, documentList);
}
}