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/*
* ============LICENSE_START=======================================================
* ONAP : ccsdk features
* ================================================================================
* Copyright (C) 2020 highstreet technologies GmbH Intellectual Property.
* All rights reserved.
* ================================================================================
* 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.
* ============LICENSE_END=========================================================
*
*/
package org.onap.ccsdk.features.sdnr.wt.dataprovider.impl;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
import org.json.JSONObject;
import org.onap.ccsdk.features.sdnr.wt.common.database.HtDatabaseClient;
import org.onap.ccsdk.features.sdnr.wt.common.database.SearchHit;
import org.onap.ccsdk.features.sdnr.wt.common.database.queries.BoolQueryBuilder;
import org.onap.ccsdk.features.sdnr.wt.common.database.queries.QueryBuilder;
import org.onap.ccsdk.features.sdnr.wt.common.database.queries.QueryBuilders;
import org.onap.ccsdk.features.sdnr.wt.common.database.queries.SortOrder;
import org.onap.ccsdk.features.sdnr.wt.common.database.requests.Search7Request;
import org.onap.ccsdk.features.sdnr.wt.common.database.requests.SearchRequest;
import org.onap.ccsdk.features.sdnr.wt.common.database.responses.AggregationEntries;
import org.onap.ccsdk.features.sdnr.wt.common.database.responses.SearchResponse;
import org.onap.ccsdk.features.sdnr.wt.dataprovider.http.DataTreeChildObject;
import org.onap.ccsdk.features.sdnr.wt.dataprovider.http.DataTreeHttpServlet.FilterMode;
import org.onap.ccsdk.features.sdnr.wt.dataprovider.http.DataTreeObject;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.data.provider.rev190801.Entity;
/**
* @author Michael Dürre
*
*/
public class DataTreeProviderImpl {
private static final long MAXSIZE_PERSEARCH = 10;
private HtDatabaseClient dbClient;
final String INVENTORY_PROPERTY_TREELEVEL = "tree-level";
final String INVENTORY_PROPERTY_NODEID = "node-id";
final String INVENTORY_PROPERTY_UUID = "uuid";
final String INVENTORY_PROPERTY_PARENTUUID = "parent-uuid";
final String INVENTORY_PROPERTY_FOR_LABEL_CHILD = "uuid";
final String INVENTORY_PROPERTY_FOR_LABEL = "uuid";
private List<SearchHit> search(Entity e, String filter, String propTreeLevel) throws IOException {
return this.search(e, filter, null, null, null, null, null, null, propTreeLevel);
}
private List<SearchHit> search(Entity e, String filter, String nodeKey, String nodeId, String parentKey,
String parentValue, String childKey, String childValue, String propTreeLevel) throws IOException {
QueryBuilder query =
filter == null ? QueryBuilders.matchAllQuery() : QueryBuilders.searchAllFieldsQuery(filter);
if ((nodeId != null && nodeKey != null) || (parentKey != null && parentValue != null)) {
BoolQueryBuilder bquery = new BoolQueryBuilder();
if (filter != null) {
bquery.must(query);
}
if (nodeId != null) {
bquery.must(QueryBuilders.matchQuery(nodeKey, nodeId));
}
// if (parentKey != null && parentValue != null) {
// bquery.must(QueryBuilders.matchQuery(parentKey, parentValue));
// }
// if (childKey != null && childValue != null) {
// bquery.must(QueryBuilders.matchQuery(childKey, childValue));
// }
query = bquery;
}
return this.search(e, query, propTreeLevel);
}
private List<SearchHit> search(Entity e, QueryBuilder query, String propTreeLevel) throws IOException {
List<SearchHit> list = new ArrayList<SearchHit>();
query.sort(propTreeLevel, SortOrder.ASCENDING);
SearchRequest request = new Search7Request(Entity.Inventoryequipment.getName());
query.size(MAXSIZE_PERSEARCH);
request.setQuery(query);
SearchResponse response = this.dbClient.search(request);
SearchHit[] matches = response.getHits();
for (SearchHit hit : matches) {
list.add(hit);
}
if (response.getTotal() > MAXSIZE_PERSEARCH) {
long todo = response.getTotal();
long from = MAXSIZE_PERSEARCH;
while (todo > from) {
request.setQuery(query.from(from));
from += MAXSIZE_PERSEARCH;
//merge into list
response = this.dbClient.search(request);
matches = response.getHits();
for (SearchHit hit : matches) {
list.add(hit);
}
}
}
return list;
}
/**
* @param iNVENTORY_PROPERTY_NODEID2
* @return
* @throws IOException
*/
private AggregationEntries searchAggregated(Entity e, String key) throws IOException {
QueryBuilder query = QueryBuilders.matchAllQuery().aggregations(key).size(MAXSIZE_PERSEARCH);
SearchRequest request = new Search7Request(e.getName());
request.setQuery(query);
SearchResponse response = this.dbClient.search(request);
return response.getAggregations(key);
}
/**
*
* @param tree
* @param filter
* @param
* @return
* @throws IOException
*/
public DataTreeObject readInventoryTree(List<String> tree, String filter, FilterMode mode) throws IOException {
//root nodes will be node-information -> below inventory
if (tree == null || tree.size() <= 0) {
return this.readInventoryTreeWithNode(filter, mode);
}
//root node will be inventory on tree-level if sliced treePath
else {
return this.readInventoryTreeForNode(tree.get(0), tree.subList(0, tree.size() - 1), filter, mode);
}
}
/**
* @param string
* @param slice
* @param filter
* @param mode
* @return
*/
private DataTreeObject readInventoryTreeForNode(String nodeId, List<String> list, String filter, FilterMode mode)
throws IOException {
DataTreeObject tree = new DataTreeObject(INVENTORY_PROPERTY_PARENTUUID, INVENTORY_PROPERTY_UUID);
final String parentUuid = list.size() > 1 ? list.get(list.size() - 2) : null;
final String uuid = list.size() > 0 ? list.get(list.size() - 1) : null;
List<SearchHit> matches = this.search(Entity.Inventoryequipment, filter, INVENTORY_PROPERTY_NODEID, nodeId,
INVENTORY_PROPERTY_PARENTUUID, parentUuid, INVENTORY_PROPERTY_UUID, uuid, INVENTORY_PROPERTY_TREELEVEL);
//tree.a(subtreePath);
List<SearchHit> others = this.search(Entity.Inventoryequipment, (String) null, INVENTORY_PROPERTY_TREELEVEL);
if (matches.size() > 0) {
int treeLevelToStart = (list == null || list.size() <= 0) ? 0 : list.size() - 1;
//build tree
JSONObject hitData;
//fill root elems
for (SearchHit hit : matches) {
hitData = hit.getSource();
if (hitData.getLong("tree-level") == treeLevelToStart) {
tree.put(hit.getId(),
new DataTreeChildObject(hitData.getString(INVENTORY_PROPERTY_FOR_LABEL), true)
.setProperty(INVENTORY_PROPERTY_UUID, hitData.getString(INVENTORY_PROPERTY_UUID))
.setProperty(INVENTORY_PROPERTY_PARENTUUID,
hitData.getString(INVENTORY_PROPERTY_PARENTUUID)));
}
}
for (SearchHit hit : others) {
hitData = hit.getSource();
if (hitData.getLong("tree-level") == treeLevelToStart) {
tree.putIfNotExists(hit.getId(),
new DataTreeChildObject(hitData.getString(INVENTORY_PROPERTY_FOR_LABEL), false)
.setProperty(INVENTORY_PROPERTY_UUID, hitData.getString(INVENTORY_PROPERTY_UUID))
.setProperty(INVENTORY_PROPERTY_PARENTUUID,
hitData.getString(INVENTORY_PROPERTY_PARENTUUID)));
}
}
//fill child elems
for (SearchHit hit : matches) {
hitData = hit.getSource();
if (hitData.getLong("tree-level") > treeLevelToStart) {
tree.put(hitData.getLong("tree-level") - treeLevelToStart - 1, hit.getId(),
new DataTreeChildObject(hitData.getString(INVENTORY_PROPERTY_FOR_LABEL), true)
.setProperty(INVENTORY_PROPERTY_UUID, hitData.getString(INVENTORY_PROPERTY_UUID))
.setProperty(INVENTORY_PROPERTY_PARENTUUID,
hitData.getString(INVENTORY_PROPERTY_PARENTUUID)));
}
}
for (SearchHit hit : others) {
hitData = hit.getSource();
if (hitData.getLong("tree-level") > treeLevelToStart) {
tree.putIfNotExists(hitData.getLong("tree-level") - treeLevelToStart - 1, hit.getId(),
new DataTreeChildObject(hitData.getString(INVENTORY_PROPERTY_FOR_LABEL), false)
.setProperty(INVENTORY_PROPERTY_UUID, hitData.getString(INVENTORY_PROPERTY_UUID))
.setProperty(INVENTORY_PROPERTY_PARENTUUID,
hitData.getString(INVENTORY_PROPERTY_PARENTUUID)));
}
}
}
return tree;
}
/**
* node will be root elements inventory information below from level-1
*
* @param filter
* @param mode
* @return
* @throws IOException
*/
private DataTreeObject readInventoryTreeWithNode(String filter, FilterMode mode) throws IOException {
DataTreeObject tree = new DataTreeObject(INVENTORY_PROPERTY_PARENTUUID, INVENTORY_PROPERTY_UUID);
List<SearchHit> matches = this.search(Entity.Inventoryequipment, filter, INVENTORY_PROPERTY_TREELEVEL);
List<SearchHit> others = null;
if (matches.size() > 0) {
if (filter != null) {
//find all parents up to tree-level 0
String nodeId = "";
List<String> alreadyInList = new ArrayList<>();
BoolQueryBuilder query2 = QueryBuilders.boolQuery();
for (SearchHit hit : matches) {
nodeId = hit.getSource().getString(INVENTORY_PROPERTY_NODEID);
if (alreadyInList.contains(nodeId)) {
continue;
}
query2.should(QueryBuilders.matchQuery(INVENTORY_PROPERTY_NODEID, nodeId));
alreadyInList.add(nodeId);
tree.put(nodeId,
new DataTreeChildObject(nodeId, false).setProperty(INVENTORY_PROPERTY_UUID, nodeId));
}
others = this.search(Entity.Inventoryequipment, query2, INVENTORY_PROPERTY_TREELEVEL);
} else {
AggregationEntries nodes = this.searchAggregated(Entity.Inventoryequipment, INVENTORY_PROPERTY_NODEID);
for (String node : nodes.keySet()) {
tree.put(node, new DataTreeChildObject(node, false).setProperty(INVENTORY_PROPERTY_UUID, node));
}
}
//build tree
JSONObject hitData;
//fill root elems
for (SearchHit hit : matches) {
hitData = hit.getSource();
if (hitData.getLong("tree-level") == 0) {
tree.put(0, hit.getId(),
new DataTreeChildObject(hitData.getString(INVENTORY_PROPERTY_FOR_LABEL), true)
.setProperty(INVENTORY_PROPERTY_UUID, hitData.getString(INVENTORY_PROPERTY_UUID))
.setProperty(INVENTORY_PROPERTY_PARENTUUID,
hitData.getString(INVENTORY_PROPERTY_NODEID)));
}
}
if (others != null) {
for (SearchHit hit : others) {
hitData = hit.getSource();
if (hitData.getLong("tree-level") == 0) {
tree.putIfNotExists(0, hit.getId(),
new DataTreeChildObject(hitData.getString(INVENTORY_PROPERTY_FOR_LABEL), false)
.setProperty(INVENTORY_PROPERTY_UUID,
hitData.getString(INVENTORY_PROPERTY_UUID))
.setProperty(INVENTORY_PROPERTY_PARENTUUID,
hitData.getString(INVENTORY_PROPERTY_NODEID)));
}
}
}
//fill child elements
for (SearchHit hit : matches) {
hitData = hit.getSource();
long treeLevel = hitData.getLong("tree-level");
if (treeLevel > 0) {
tree.put(treeLevel, hit.getId(),
new DataTreeChildObject(hitData.getString(INVENTORY_PROPERTY_FOR_LABEL_CHILD), true)
.setProperty(INVENTORY_PROPERTY_UUID, hitData.getString(INVENTORY_PROPERTY_UUID))
.setProperty(INVENTORY_PROPERTY_PARENTUUID,
hitData.getString(INVENTORY_PROPERTY_PARENTUUID)));
}
}
if (others != null) {
for (SearchHit hit : others) {
hitData = hit.getSource();
long treeLevel = hitData.getLong("tree-level");
if (hitData.getLong("tree-level") > 0) {
tree.putIfNotExists(treeLevel, hit.getId(),
new DataTreeChildObject(hitData.getString(INVENTORY_PROPERTY_FOR_LABEL_CHILD), false)
.setProperty(INVENTORY_PROPERTY_UUID,
hitData.getString(INVENTORY_PROPERTY_UUID))
.setProperty(INVENTORY_PROPERTY_PARENTUUID,
hitData.getString(INVENTORY_PROPERTY_PARENTUUID)));
}
}
}
if (mode == FilterMode.Strict) {
tree.removeUnmatchedPaths();
}
}
return tree;
}
/**
* @param client
*/
public void setDatabaseClient(HtDatabaseClient client) {
this.dbClient = client;
}
}
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