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/*-
* ============LICENSE_START=======================================================
* ONAP : CCSDK
* ================================================================================
* Copyright (C) 2017 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.ccsdk.sli.core.slipluginutils;
import java.util.Map;
import java.util.Optional;
import org.onap.ccsdk.sli.core.sli.SvcLogicContext;
import org.onap.ccsdk.sli.core.sli.SvcLogicException;
import org.onap.ccsdk.sli.core.sli.SvcLogicJavaPlugin;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* A SvcLogicJavaPlugin that generates DME2 proxy urls using parameters from context memory.
*/
public class DME2 implements SvcLogicJavaPlugin {
private static final Logger LOG = LoggerFactory.getLogger(DME2.class);
final String aafUserName;
final String aafPassword;
final String envContext;
final String routeOffer;
final String[] proxyUrls;
final String commonServiceVersion;
Integer index;
String partner;
public void setPartner(String partner) {
if (partner != null && partner.length() > 0) {
this.partner = partner;
}
}
public DME2(String aafUserName, String aafPassword, String envContext, String routeOffer, String[] proxyUrls, String commonServiceVersion) {
this.aafUserName = aafUserName;
this.aafPassword = aafPassword;
this.envContext = envContext;
this.routeOffer = routeOffer;
this.proxyUrls = proxyUrls;
this.index = 0;
this.commonServiceVersion = commonServiceVersion;
}
public DME2(final Dme2PropertiesProvider provider) {
this.aafUserName = useProperty(provider.getAafUsername(), Dme2PropertiesProvider.AAF_USERNAME_KEY);
this.aafPassword = useProperty(provider.getAafPassword(), Dme2PropertiesProvider.AAF_PASSWORD_KEY);
this.envContext = useProperty(provider.getEnvContext(), Dme2PropertiesProvider.ENV_CONTEXT_KEY);
this.routeOffer = useProperty(provider.getRouteOffer(), Dme2PropertiesProvider.ROUTE_OFFER_KEY);
this.index = 0;
this.commonServiceVersion = useProperty(provider.getCommonServiceVersion(),
Dme2PropertiesProvider.COMMON_SERVICE_VERSION_KEY);
final Optional<String []> maybeProxyUrls = provider.getProxyUrls();
if (maybeProxyUrls.isPresent()) {
this.proxyUrls = maybeProxyUrls.get();
} else {
warnOfMissingProperty(Dme2PropertiesProvider.PROXY_URL_KEY);
this.proxyUrls = null;
}
this.setPartner(useProperty(provider.getPartner(), Dme2PropertiesProvider.PARTNER_KEY));
}
private String useProperty(final Optional<String> propertyOptional, final String propertyKey) {
if (propertyOptional.isPresent()) {
return propertyOptional.get();
}
warnOfMissingProperty(propertyKey);
return null;
}
private void warnOfMissingProperty(final String propertyName) {
LOG.warn("Utilizing null for {} since it was left unassigned in the properties file");
}
// constructs a URL to contact the proxy which contacts a DME2 service
public String constructUrl(String service, String version, String subContext) {
StringBuilder sb = new StringBuilder();
// The hostname is assigned in a round robin fashion
sb.append(acquireHostName());
sb.append("/service=" + service);
//If the directedGraph passes an explicit version use that, if not use the commonServiceVersion found in the properties file
if (version == null) {
version = this.commonServiceVersion;
}
sb.append("/version=" + version);
sb.append("/envContext=" + this.envContext);
if (this.routeOffer != null && this.routeOffer.length() > 0) {
sb.append("/routeOffer=" + this.routeOffer);
}
if (subContext != null && subContext.length() > 0) {
sb.append("/subContext=" + subContext);
}
sb.append("?dme2.password=" + this.aafPassword);
sb.append("&dme2.username=" + this.aafUserName);
if (this.partner != null) {
sb.append("&dme2.partner=" + this.partner);
}
sb.append("&dme2.allowhttpcode=true");
return sb.toString();
}
public synchronized String acquireHostName() {
String retVal = proxyUrls[index];
index++;
if (index == this.proxyUrls.length) {
index = 0;
}
return retVal;
}
// Node entry point
public void constructUrl(Map<String, String> parameters, SvcLogicContext ctx) throws SvcLogicException {
SliPluginUtils.checkParameters(parameters, new String[] { "service", "outputPath" }, LOG);
String completeProxyUrl = constructUrl(parameters.get("service"), parameters.get("version"), parameters.get("subContext"));
ctx.setAttribute(parameters.get("outputPath"), completeProxyUrl);
}
}
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