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/*-
* ============LICENSE_START=======================================================
* ONAP : DCAE
* ================================================================================
* Copyright 2018-2019 TechMahindra
* ================================================================================
* 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.universalvesadapter.utils;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.net.URI;
import java.net.URISyntaxException;
import java.nio.file.Files;
import java.util.HashMap;
import java.util.Map;
import org.json.simple.JSONArray;
import org.json.simple.JSONObject;
import org.json.simple.parser.JSONParser;
import org.json.simple.parser.ParseException;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;
import org.springframework.util.ResourceUtils;
import com.fasterxml.jackson.databind.JsonNode;
import com.fasterxml.jackson.databind.ObjectMapper;
@Component
public class CollectorConfigPropertyRetrival {
private static final Logger debugLogger = LoggerFactory.getLogger("debugLogger");
private static final Logger errorLogger = LoggerFactory.getLogger("errorLogger");
private static JSONArray array;
@Autowired
private DmaapConfig dmaapConfig;
public static JSONArray collectorConfigArray(String configFile) {
try {
JSONParser parser = new JSONParser();
String content = readFile(configFile);
JSONObject obj = (JSONObject) parser.parse(content);
JSONObject appobj = (JSONObject) obj.get("app_preferences");
array = (JSONArray) appobj.get("collectors");
debugLogger.info("Retrieved JsonArray from Collector Config File");
} catch (ParseException e) {
errorLogger.error("ParseException occured at position:", e.getPosition());
}
return array;
}
public static String[] getProperyArray(String properyName,
String defaultConfigFilelocation) {
JSONArray jsonArray = collectorConfigArray(defaultConfigFilelocation);
String[] propertyArray = new String[jsonArray.size()];
for (int k = 0; k < jsonArray.size(); k++) {
JSONObject collJson = (JSONObject) jsonArray.get(k);
propertyArray[k] = (String) collJson.get(properyName);
}
debugLogger.info("returning " + properyName + " array from Collector Config");
return propertyArray;
}
public Map<String, String> getDmaapTopics(String subscriber, String publisher,
String defaultConfigFilelocation) {
JSONArray jsonArray = collectorConfigArray(defaultConfigFilelocation);
Map<String, String> dmaapTopics = new HashMap<>();
for (int k = 0; k < jsonArray.size(); k++) {
JSONObject collJson = (JSONObject) jsonArray.get(k);
dmaapTopics.put(collJson.get(subscriber).toString(),
collJson.get(publisher).toString());
}
debugLogger.info("returning Dmaap topics from Collector Config");
return dmaapTopics;
}
public Map<String, String> getTopics(String subscriber, String publisher,
String defaultConfigFilelocation) {
Map<String, String> dmaapTopics = new HashMap<>();
try {
ObjectMapper objectMapper = new ObjectMapper();
String content = readFile(defaultConfigFilelocation);
// read JSON like DOM Parser
JsonNode rootNode = objectMapper.readTree(content);
JsonNode subscriberUrl = rootNode.path("streams_subscribes")
.path(subscriber).path("dmaap_info").path("topic_url");
JsonNode publisherUrl = rootNode.path("streams_publishes").path(publisher)
.path("dmaap_info").path("topic_url");
dmaapTopics.put(getTopicName(subscriberUrl.asText()),
getTopicName(publisherUrl.asText()));
setDmaapConfig(subscriberUrl.asText());
} catch (IOException ex) {
errorLogger.error("IOException occured:" + ex.getMessage());
} catch (URISyntaxException e) {
errorLogger.error("Invalid URI :" + e.getInput() + ": " + e.getReason());
}
return dmaapTopics;
}
public String getTopicName(String url) throws URISyntaxException {
URI uri = new URI(url);
String path = uri.getPath();
String idStr = path.substring(path.lastIndexOf('/') + 1);
return idStr;
}
public void setDmaapConfig(String url) throws URISyntaxException {
URI uri = new URI(url);
dmaapConfig.setDmaaphost(uri.getHost());
dmaapConfig.setDEFAULT_PORT_NUMBER(uri.getPort());
}
public static String readFile(String configFileName) {
String content = null;
File file = null;
try {
file = ResourceUtils.getFile("classpath:" + configFileName);
content = new String(Files.readAllBytes(file.toPath()));
} catch (FileNotFoundException e) {
errorLogger.error("colud not find file :", configFileName);
} catch (IOException e) {
errorLogger.error("unable to read the file , reason:", e.getCause());
}
return content;
}
}
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