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/*-
* ============LICENSE_START=======================================================
* PROJECT
* ================================================================================
* Copyright (C) 2017-2018 AT&T 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.dcae.commonFunction;
import com.att.nsa.apiServer.ApiServer;
import com.att.nsa.apiServer.ApiServerConnector;
import com.att.nsa.apiServer.endpoints.NsaBaseEndpoint;
import com.att.nsa.drumlin.till.nv.rrNvReadable;
import com.att.nsa.drumlin.till.nv.rrNvReadable.loadException;
import com.fasterxml.jackson.core.JsonParseException;
import com.fasterxml.jackson.databind.JsonNode;
import com.github.fge.jackson.JsonLoader;
import com.github.fge.jsonschema.core.exceptions.ProcessingException;
import com.github.fge.jsonschema.core.report.ProcessingMessage;
import com.github.fge.jsonschema.core.report.ProcessingReport;
import com.github.fge.jsonschema.main.JsonSchema;
import com.github.fge.jsonschema.main.JsonSchemaFactory;
import org.apache.catalina.LifecycleException;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;
import org.onap.dcae.ApplicationSettings;
import org.onap.dcae.CLIUtils;
import org.onap.dcae.commonFunction.event.publishing.DMaaPConfigurationParser;
import org.onap.dcae.commonFunction.event.publishing.EventPublisher;
import org.onap.dcae.restapi.RestfulCollectorServlet;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.io.IOException;
import java.nio.file.Files;
import java.nio.file.Paths;
import java.util.LinkedList;
import java.util.List;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import java.util.concurrent.LinkedBlockingQueue;
public class CommonStartup extends NsaBaseEndpoint implements Runnable {
private static final Logger metriclog = LoggerFactory.getLogger("com.att.ecomp.metrics");
public static final Logger inlog = LoggerFactory.getLogger("org.onap.dcae.commonFunction.input");
static final Logger oplog = LoggerFactory.getLogger("org.onap.dcae.commonFunction.output");
public static final Logger eplog = LoggerFactory.getLogger("org.onap.dcae.commonFunction.error");
static int maxQueueEvent = 1024 * 4;
public static boolean schemaValidatorflag = false;
public static boolean authflag = false;
static boolean eventTransformFlag = true;
public static JSONObject schemaFileJson;
static String cambriaConfigFile;
public static io.vavr.collection.Map<String , String [] > streamID;
static LinkedBlockingQueue<JSONObject> fProcessingInputQueue;
private static ApiServer fTomcatServer = null;
private static final Logger log = LoggerFactory.getLogger(CommonStartup.class);
private CommonStartup(ApplicationSettings settings) throws loadException, IOException, rrNvReadable.missingReqdSetting {
final List<ApiServerConnector> connectors = new LinkedList<>();
if (!settings.authorizationEnabled()) {
connectors.add(new ApiServerConnector.Builder(settings.httpPort()).secure(false).build());
}
final int securePort = settings.httpsPort();
final String keystoreFile = settings.keystoreFileLocation();
final String keystorePasswordFile = settings.keystorePasswordFileLocation();
final String keyAlias = settings.keystoreAlias();
if (settings.authorizationEnabled()) {
String keystorePassword = readFile(keystorePasswordFile);
connectors.add(new ApiServerConnector.Builder(securePort).secure(true)
.keystorePassword(keystorePassword).keystoreFile(keystoreFile).keyAlias(keyAlias).build());
}
schemaValidatorflag = settings.jsonSchemaValidationEnabled();
maxQueueEvent = settings.maximumAllowedQueuedEvents();
if (schemaValidatorflag) {
schemaFileJson = settings.jsonSchema();
}
authflag = settings.authorizationEnabled();
cambriaConfigFile = settings.cambriaConfigurationFileLocation();
streamID = settings.dMaaPStreamsMapping();
eventTransformFlag = settings.eventTransformingEnabled();
fTomcatServer = new ApiServer.Builder(connectors, new RestfulCollectorServlet(settings)).encodeSlashes(true)
.name("collector").build();
}
public static void main(String[] args) {
try {
fProcessingInputQueue = new LinkedBlockingQueue<>(CommonStartup.maxQueueEvent);
VESLogger.setUpEcompLogging();
CommonStartup cs = new CommonStartup(new ApplicationSettings(args, CLIUtils::processCmdLine));
Thread commonStartupThread = new Thread(cs);
commonStartupThread.start();
EventProcessor ep = new EventProcessor(EventPublisher.createPublisher(oplog,
DMaaPConfigurationParser
.parseToDomainMapping(Paths.get(cambriaConfigFile))
.get()));
ExecutorService executor = Executors.newFixedThreadPool(20);
for (int i = 0; i < 20; ++i) {
executor.execute(ep);
}
} catch (Exception e) {
CommonStartup.eplog.error("Fatal error during application startup", e);
throw new RuntimeException(e);
}
}
public void run() {
try {
fTomcatServer.start();
fTomcatServer.await();
} catch (LifecycleException | IOException e) {
throw new RuntimeException(e);
}
}
public static class QueueFullException extends Exception {
private static final long serialVersionUID = 1L;
}
public static void handleEvents(JSONArray a) throws QueueFullException, JSONException {
CommonStartup.metriclog.info("EVENT_PUBLISH_START");
for (int i = 0; i < a.length(); i++) {
if (!fProcessingInputQueue.offer(a.getJSONObject(i))) {
throw new QueueFullException();
}
}
log.debug("CommonStartup.handleEvents:EVENTS has been published successfully!");
CommonStartup.metriclog.info("EVENT_PUBLISH_END");
}
private static String readFile(String path) throws IOException {
byte[] encoded = Files.readAllBytes(Paths.get(path));
String pwd = new String(encoded);
return pwd.substring(0, pwd.length() - 1);
}
public static String validateAgainstSchema(String jsonData, String jsonSchema) {
ProcessingReport report;
String result = "false";
try {
log.trace("Schema validation for event:" + jsonData);
JsonNode schemaNode = JsonLoader.fromString(jsonSchema);
JsonNode data = JsonLoader.fromString(jsonData);
JsonSchemaFactory factory = JsonSchemaFactory.byDefault();
JsonSchema schema = factory.getJsonSchema(schemaNode);
report = schema.validate(data);
} catch (JsonParseException e) {
log.error("validateAgainstSchema:JsonParseException for event:" + jsonData);
return e.getMessage();
} catch (ProcessingException e) {
log.error("validateAgainstSchema:Processing exception for event:" + jsonData);
return e.getMessage();
} catch (IOException e) {
log.error(
"validateAgainstSchema:IO exception; something went wrong trying to read json data for event:" + jsonData);
return e.getMessage();
}
if (report != null) {
for (ProcessingMessage pm : report) {
log.trace("Processing Message: " + pm.getMessage());
}
result = String.valueOf(report.isSuccess());
}
try {
log.debug("Validation Result:" + result + " Validation report:" + report);
} catch (NullPointerException e) {
log.error("validateAgainstSchema:NullpointerException on report");
}
return result;
}
}
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