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/*-
* ============LICENSE_START=======================================================
* PolicyEngineAPI
* ================================================================================
* 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.policy.std;
import java.net.URI;
import java.util.concurrent.CountDownLatch;
import org.java_websocket.client.WebSocketClient;
import org.java_websocket.handshake.ServerHandshake;
import org.onap.policy.api.NotificationScheme;
import org.onap.policy.api.NotificationType;
import org.onap.policy.api.PDPNotification;
import org.onap.policy.common.logging.flexlogger.FlexLogger;
import org.onap.policy.common.logging.flexlogger.Logger;
import org.onap.policy.std.StdPDPNotification;
import org.onap.policy.xacml.api.XACMLErrorConstants;
public class ManualClientEnd extends WebSocketClient {
private static volatile CountDownLatch latch;
private static volatile StdPDPNotification notification = null;
private static volatile String resultJson = null;
private static final Logger logger = FlexLogger.getLogger(ManualClientEnd.class.getName());
private static volatile ManualClientEnd client;
public ManualClientEnd(URI serverUri) {
super(serverUri);
}
@Override
public void onClose(int code, String reason, boolean remote) {
logger.info("ManualClientEnd disconnected from: " + getURI() + "; Code: " + code + ", reason : " + reason);
latch.countDown();
}
@Override
public void onError(Exception ex) {
logger.error("XACMLErrorConstants.ERROR_PROCESS_FLOW + ManualClientEnd - Error connecting to: " + getURI()
+ ", Exception occured ...\n" + ex);
latch.countDown();
}
@Override
public void onMessage(String message) {
logger.info("Manual Notification Recieved Message from : " + getURI() + ", Notification: " + message);
ManualClientEnd.resultJson = message;
try {
ManualClientEnd.notification = NotificationUnMarshal.notificationJSON(message);
} catch (Exception e) {
logger.error(XACMLErrorConstants.ERROR_DATA_ISSUE + e);
}
latch.countDown();
}
@Override
public void onOpen(ServerHandshake arg0) {
logger.info("Manual Notification Session Started... " + getURI());
send("Manual");
}
/**
* Start.
*
* @param url the url
*/
public static void start(String url) {
latch = new CountDownLatch(1);
if (url.contains("https")) {
url = url.replaceAll("https", "wss");
} else {
url = url.replaceAll("http", "ws");
}
try {
client = new ManualClientEnd(new URI(url + "notifications"));
client.setConnectionLostTimeout(0);
client.connect();
latch.await();
client.closeBlocking();
} catch (Exception e) {
logger.error(XACMLErrorConstants.ERROR_SYSTEM_ERROR + e);
}
}
/**
* Result.
*
* @param scheme the scheme
* @return the PDP notification
*/
public static PDPNotification result(NotificationScheme scheme) {
if (resultJson == null || notification == null) {
logger.info("ManualClientENd - No Result available");
return null;
} else {
if (scheme.equals(NotificationScheme.MANUAL_ALL_NOTIFICATIONS)) {
boolean removed = false;
boolean updated = false;
if (notification.getRemovedPolicies() != null && !notification.getRemovedPolicies().isEmpty()) {
removed = true;
notification.setNotificationType(NotificationType.REMOVE);
}
if (notification.getLoadedPolicies() != null && !notification.getLoadedPolicies().isEmpty()) {
updated = true;
notification.setNotificationType(NotificationType.UPDATE);
}
if (removed && updated) {
notification.setNotificationType(NotificationType.BOTH);
}
return notification;
} else if (scheme.equals(NotificationScheme.MANUAL_NOTIFICATIONS)) {
return MatchStore.checkMatch(notification);
} else {
return null;
}
}
}
}
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