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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.database.sqldb.data;
import java.io.File;
import java.io.IOException;
import java.nio.file.Files;
import org.json.JSONException;
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.SearchResult;
import org.onap.ccsdk.features.sdnr.wt.common.database.queries.QueryBuilders;
import org.onap.ccsdk.features.sdnr.wt.dataprovider.model.HtUserdataManager;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.data.provider.rev201110.Entity;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
public class HtUserdataManagerImpl implements HtUserdataManager {
private static final Logger LOG = LoggerFactory.getLogger(HtUserdataManagerImpl.class);
private static final String USERDATA_DEFAULTS_FILENAME = "etc/userdata-defaults.json";
private static final JSONObject USERDATA_DEFAULTS_CONTENT = loadDefaults();
private static JSONObject loadDefaults() {
File f = new File(USERDATA_DEFAULTS_FILENAME);
String content;
JSONObject o = null;
if (f.exists()) {
try {
content = Files.readString(f.toPath());
o = new JSONObject(content);
} catch (IOException e) {
LOG.warn("problem loading defaults: ", e);
} catch (JSONException e) {
LOG.warn("problem parsing defaults: ", e);
}
}
return o;
}
private final HtDatabaseClient dbClient;
public HtUserdataManagerImpl(HtDatabaseClient rawClient) {
this.dbClient = rawClient;
}
@Override
public String getUserdata(String username) {
SearchResult<SearchHit> result = this.dbClient.doReadByQueryJsonData(Entity.Userdata.getName(),
QueryBuilders.matchQuery("_id", username));
String json = result.getHits().size() > 0 ? result.getHits().get(0).getSourceAsString() : "{}";
if (USERDATA_DEFAULTS_CONTENT != null) {
JSONObject merge = mergeData(new JSONObject(json), USERDATA_DEFAULTS_CONTENT);
json = merge.toString();
}
return json;
}
@Override
public String getUserdata(String username, String key) {
JSONObject o = new JSONObject(this.getUserdata(username));
return o.has(key) ? o.get(key).toString() : "{}";
}
@Override
public boolean setUserdata(String username, String data) {
JSONObject o = new JSONObject(this.getUserdata(username));
JSONObject merge = mergeData(o, new JSONObject(data));
return this.dbClient.doWriteRaw(Entity.Userdata.getName(), username, merge.toString()) != null;
}
@Override
public boolean setUserdata(String username, String key, String data) {
JSONObject o = new JSONObject(this.getUserdata(username));
o = mergeData(o, key, new JSONObject(data));
return this.dbClient.doWriteRaw(Entity.Userdata.getName(), username, o.toString()) != null;
}
@Override
public boolean removeUserdata(String username) {
return this.dbClient.doRemove(Entity.Userdata.getName(), username);
}
@Override
public boolean removeUserdata(String username, String key) {
JSONObject o = new JSONObject(this.getUserdata(username));
if (o.has(key)) {
o.remove(key);
return this.setUserdata(username, o.toString());
}
return true;
}
private static JSONObject mergeData(JSONObject o, String key, JSONObject subObject) {
if (!o.has(key)) {
o.put(key, subObject);
} else {
JSONObject tmp = new JSONObject();
tmp.put(key, subObject);
o = mergeData(tmp, o);
}
return o;
}
private static JSONObject mergeData(JSONObject source, JSONObject target) throws JSONException {
String[] keys = JSONObject.getNames(source);
if (keys == null) {
return target;
}
for (String key : keys) {
Object value = source.get(key);
if (!target.has(key)) {
// new value for "key":
target.put(key, value);
} else {
// existing value for "key" - recursively deep merge:
if (value instanceof JSONObject) {
JSONObject valueJson = (JSONObject) value;
mergeData(valueJson, target.getJSONObject(key));
} else {
target.put(key, value);
}
}
}
return target;
}
}
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