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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.Iterator;
import java.util.Map;
import java.util.Map.Entry;
import java.util.Properties;
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 (for calling the DME2 ingress proxy) using
* parameters from context memory.
*/
public class DME2 implements SvcLogicJavaPlugin {
private static final Logger LOG = LoggerFactory.getLogger(DME2.class);
// the key for <code>proxyUrl</code>, which represents a CSV list of urls
static final String PROXY_URL_KEY = "proxyUrl";
static final String PROXY_URLS_VALUE_SEPARATOR = ",";
static final String AAF_USERNAME_KEY = "aafUserName";
static final String AAF_PASSWORD_KEY = "aafPassword";
static final String ENV_CONTEXT_KEY = "envContext";
static final String ROUTE_OFFER_KEY = "routeOffer";
static final String COMMON_SERVICE_VERSION_KEY = "commonServiceVersion";
static final String PARTNER_KEY = "partner";
static final String VERSION_KEY = "version";
static final String SERVICE_KEY = "service";
static final String SUBCONTEXT_KEY = "subContext";
static final String ENDPOINT_READ_TIMEOUT_KEY = "endpointReadTimeout";
static final String OUTPUT_PATH_KEY = "outputPath";
final String aafUserName;
final String aafPassword;
final String envContext;
final String routeOffer;
final String[] proxyUrls;
final String commonServiceVersion;
final String partner;
final String endpointReadTimeout;
Integer index;
public DME2(Properties properties) {
Iterator<Entry<Object, Object>> it = properties.entrySet().iterator();
while (it.hasNext()) {
Entry<Object, Object> entry = it.next();
if (entry.getValue() == null || entry.getValue().toString().length() < 1) {
it.remove();
}
}
this.aafUserName = properties.getProperty(AAF_USERNAME_KEY, null);
this.aafPassword = properties.getProperty(AAF_PASSWORD_KEY, null);
this.envContext = properties.getProperty(ENV_CONTEXT_KEY, null);
this.routeOffer = properties.getProperty(ROUTE_OFFER_KEY, null);
this.commonServiceVersion = properties.getProperty(COMMON_SERVICE_VERSION_KEY, null);
this.partner = properties.getProperty(PARTNER_KEY, null);
this.endpointReadTimeout = properties.getProperty(ENDPOINT_READ_TIMEOUT_KEY, null);
String proxyUrlString = properties.getProperty(PROXY_URL_KEY, null);
if (proxyUrlString != null && proxyUrlString.length() > 0) {
this.proxyUrls = proxyUrlString.split(PROXY_URLS_VALUE_SEPARATOR);
} else {
String[] local = {"http://localhost:5000"};
this.proxyUrls = local;
}
this.index = 0;
}
// constructs a URL to contact the proxy which contacts a DME2 service
public String constructUrl(Map<String, String> parameters) {
StringBuilder sb = new StringBuilder();
// The hostname is assigned in a round robin fashion
sb.append(acquireHostName());
sb.append("/service=" + parameters.get(SERVICE_KEY));
// If the directedGraph passes an explicit version use that, if not use the commonServiceVersion
// found in the properties file
String version = parameters.getOrDefault(VERSION_KEY, this.commonServiceVersion);
sb.append("/version=" + version);
String envContext = parameters.getOrDefault(ENV_CONTEXT_KEY, this.envContext);
sb.append("/envContext=" + envContext);
String routeOffer = parameters.getOrDefault(ROUTE_OFFER_KEY, this.routeOffer);
sb.append("/routeOffer=" + routeOffer);
String subContext = parameters.get(SUBCONTEXT_KEY);
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("&partner=" + this.partner);
}
sb.append("&dme2.allowhttpcode=true");
String endpointReadTimeout = parameters.getOrDefault(ENDPOINT_READ_TIMEOUT_KEY, this.endpointReadTimeout);
if (endpointReadTimeout != null) {
sb.append("&dme2.endpointReadTimeout=" + endpointReadTimeout);
}
String incompleteUrl = sb.toString();
// Support optional parameters in a flexible way
for (Entry<String, String> param : parameters.entrySet()) {
if (!incompleteUrl.contains(param.getKey() + "=") && param.getValue() != null
&& param.getValue().length() > 0 && !OUTPUT_PATH_KEY.equals(param.getKey())) {
sb.append("&" + param.getKey() + "=" + param.getValue());
}
}
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_KEY, OUTPUT_PATH_KEY}, LOG);
String completeProxyUrl = constructUrl(parameters);
ctx.setAttribute(parameters.get(OUTPUT_PATH_KEY), completeProxyUrl);
}
}
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