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/*-
* ============LICENSE_START=======================================================
* ONAP : APPC
* ================================================================================
* Copyright (C) 2017-2018 AT&T Intellectual Property. All rights reserved.
* ================================================================================
* Copyright (C) 2017 Amdocs
* =============================================================================
* Modifications Copyright (C) 2019 Ericsson
* =============================================================================
* 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.appc.instar.dme2client;
import java.io.IOException;
import java.io.InputStream;
import java.net.URI;
import java.nio.charset.Charset;
import java.util.Map;
import java.util.Properties;
import javax.net.ssl.HostnameVerifier;
import javax.net.ssl.SSLContext;
import javax.ws.rs.HttpMethod;
import javax.ws.rs.core.MediaType;
import org.apache.commons.io.IOUtils;
import org.onap.appc.instar.utils.InstarClientConstant;
import org.onap.ccsdk.sli.core.sli.SvcLogicException;
import com.att.eelf.configuration.EELFLogger;
import com.att.eelf.configuration.EELFManager;
import javax.ws.rs.client.Client;
import javax.ws.rs.client.ClientBuilder;
import javax.ws.rs.client.Entity;
import javax.ws.rs.client.WebTarget;
import javax.ws.rs.core.Response;
import javax.ws.rs.core.Feature;
import org.glassfish.jersey.client.authentication.HttpAuthenticationFeature;
public class Dme2Client {
private static final EELFLogger log = EELFManager.getInstance().getLogger(Dme2Client.class);
private static final String SDNC_CONFIG_DIR_VAR = "SDNC_CONFIG_DIR";
private Properties properties = new Properties();
private String operationName;
private String appendContext;
private String mask;
private String ipAddress;
public Dme2Client(String optName, String subCtxt, Map<String, String> data) throws IOException {
log.info("Setting Properties for DME2 Client for INSTAR connection");
this.operationName = optName;
this.appendContext = data.get(subCtxt);
if ("getVnfbyIpadress".equals(optName)) {
this.ipAddress = data.get("ipAddress");
this.mask = data.get("mask");
}
String propDir = InstarClientConstant.getEnvironmentVariable(SDNC_CONFIG_DIR_VAR);
if (propDir == null) {
throw new IOException("Cannot find Property file -" + SDNC_CONFIG_DIR_VAR);
}
String propFile = propDir + InstarClientConstant.OUTBOUND_PROPERTIES;
InputStream propStream = InstarClientConstant.getInputStream(propFile);
try {
properties.load(propStream);
} catch (Exception e) {
throw new IOException("Could not load properties file " + propFile, e);
} finally {
try {
propStream.close();
} catch (Exception e) {
log.warn("Could not close FileInputStream", e);
}
}
}
private Response sendToInstar() throws SvcLogicException {
log.info("Called Send with operation Name=" + this.operationName + "and = " +
properties.getProperty(operationName + InstarClientConstant.BASE_URL));
String resourceUri = buildResourceUri();
log.info("DME Endpoint URI:" + resourceUri);
Client client = null;
WebTarget webResource;
Response clientResponse = null;
String authorization = properties.getProperty("authorization");
String requestDataType = "application/json";
String responseDataType = MediaType.APPLICATION_JSON;
String methodType = properties.getProperty("getIpAddressByVnf_method");
String request = "";
String userId = properties.getProperty("MechID");
String password = properties.getProperty("MechPass");
log.info("authorization = " + authorization + "methodType= " + methodType);
try {
System.setProperty("jsse.enableSNIExtension", "false");
SSLContext sslContext;
SecureRestClientTrustManager secureRestClientTrustManager = new SecureRestClientTrustManager();
sslContext = SSLContext.getInstance("SSL");
sslContext.init(null, new javax.net.ssl.TrustManager[]{secureRestClientTrustManager}, null);
client = ClientBuilder.newBuilder().sslContext(sslContext).hostnameVerifier(getHostnameVerifier()).build();
client.register(HttpAuthenticationFeature.basic(userId, password));
webResource = client.target(new URI(resourceUri));
webResource.property("Content-Type", "application/json;charset=UTF-8");
if (HttpMethod.GET.equalsIgnoreCase(methodType)) {
clientResponse = webResource.request(responseDataType).get(Response.class);
} else if (HttpMethod.POST.equalsIgnoreCase(methodType)) {
clientResponse = webResource.request(requestDataType).post( Entity.json(request),Response.class);
} else if (HttpMethod.PUT.equalsIgnoreCase(methodType)) {
clientResponse = webResource.request(requestDataType).put( Entity.json(request),Response.class);
} else if (HttpMethod.DELETE.equalsIgnoreCase(methodType)) {
clientResponse = webResource.request().delete(Response.class);
}
return clientResponse;
} catch (Exception e) {
log.info(
"failed in RESTCONT Action (" + methodType + ") for the resource " + resourceUri + ", falut message :"
+ e.getMessage());
throw new SvcLogicException("Error While gettting Data from INSTAR", e);
} finally {
// clean up.
if (client != null) {
client.close();
}
}
}
private String buildResourceUri() {
String resourceUri = properties.getProperty(operationName + InstarClientConstant.BASE_URL) +
properties.getProperty(operationName + InstarClientConstant.URL_SUFFIX);
if (ipAddress != null && mask == null) {
resourceUri = resourceUri
+ properties.getProperty(operationName + InstarClientConstant.SUB_CONTEXT_BYIPADDRESS) + ipAddress;
} else if (mask != null) {
resourceUri = resourceUri
+ properties.getProperty(operationName + InstarClientConstant.SUB_CONTEXT_BYIPADDRESS)
+ ipAddress + properties.getProperty(operationName + InstarClientConstant.SUB_CONTEXT_BYMASK) + mask;
} else {
resourceUri = resourceUri
+ properties.getProperty(operationName + InstarClientConstant.SUB_CONTEXT) + appendContext;
}
return resourceUri;
}
public String send() {
String response = null;
try {
if (validateProperties()) {
return IOUtils.toString(Dme2Client.class.getClassLoader().getResourceAsStream("/tmp/sampleResponse"),
Charset.defaultCharset());
}
Response clientResponse = sendToInstar();
if (clientResponse != null) {
response = clientResponse.readEntity(String.class);
log.info(clientResponse.getStatus() + " Status, Response :" + response);
}
} catch (Exception e) {
log.error("Failed to send response", e);
}
return response;
}
private boolean validateProperties() {
return properties != null
&& properties.getProperty(InstarClientConstant.MOCK_INSTAR) != null
&& "true".equalsIgnoreCase(properties.getProperty(InstarClientConstant.MOCK_INSTAR));
}
private HostnameVerifier getHostnameVerifier() {
return (hostname, sslSession) -> true;
}
}
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