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/**
* Copyright 2017 ZTE Corporation.
*
* 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.
*/
package org.onap.holmes.common.aai;
import java.io.IOException;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import javax.inject.Inject;
import lombok.extern.slf4j.Slf4j;
import org.apache.http.HttpResponse;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.client.methods.HttpRequestBase;
import org.apache.http.impl.client.CloseableHttpClient;
import org.jvnet.hk2.annotations.Service;
import org.onap.holmes.common.aai.config.AaiConfig;
import org.onap.holmes.common.aai.entity.VmEntity;
import org.onap.holmes.common.aai.entity.VnfEntity;
import org.onap.holmes.common.config.MicroServiceConfig;
import org.onap.holmes.common.exception.CorrelationException;
import org.onap.holmes.common.utils.HttpsUtils;
@Service
@Slf4j
public class AaiQuery {
@Inject
private AaiResponseUtil aaiResponseUtil;
public VnfEntity getAaiVnfData(String vnfId, String vnfName) throws CorrelationException {
String response = getVnfDataResponse(vnfId, vnfName);
try {
return aaiResponseUtil.convertJsonToVnfEntity(response);
} catch (Exception e) {
throw new CorrelationException("Failed to convert aai vnf response data to vnf entity", e);
}
}
public VmEntity getAaiVmData(String vserverId, String vserverName) throws CorrelationException {
String url = getVmUrl(vserverId, vserverName);
String response = getResponse(url);
try {
return aaiResponseUtil.convertJsonToVmEntity(response);
} catch (Exception e) {
throw new CorrelationException("Failed to convert aai vm response data to vm entity", e);
}
}
private String getVmUrl(String vserverId, String vserverName) throws CorrelationException {
String url = "";
String resourceLinkUrl = getVmResourceLinks(vserverId, vserverName);
String baseUrl = getBaseUrl("");
if (baseUrl.startsWith("http")) {
url = baseUrl + getMsbSuffixAddr(resourceLinkUrl);
} else {
url = baseUrl + resourceLinkUrl;
}
return url;
}
private String getVmResourceLinks(String vserverId, String vserverName) throws CorrelationException {
String response = getResourceLinksResponse(vserverId, vserverName);
List linkList = aaiResponseUtil.convertJsonToVmResourceLink(response);
if (!linkList.isEmpty()) {
return aaiResponseUtil.convertJsonToVmResourceLink(response).get(0).getResourceLink();
}
return "";
}
private String getResourceLinksResponse(String vserverId, String vserverName) throws CorrelationException {
String url = getBaseUrl(getMsbSuffixAddr(AaiConfig.AaiConsts.AAI_VM_ADDR) + "vserver-id:EQUALS:" + vserverId);
String response = getResponse(url);
if ("".equals(response) || "{}".equals(response)) {
url = getBaseUrl(getMsbSuffixAddr(AaiConfig.AaiConsts.AAI_VM_ADDR) + "vserver-name:EQUALS:" + vserverName);
response = getResponse(url);
}
return response;
}
private String getVnfDataResponse(String vnfId, String vnfName) throws CorrelationException {
String url = getBaseUrl(getMsbSuffixAddr(AaiConfig.AaiConsts.AAI_VNF_ADDR)+ "/" + vnfId);
String response = getResponse(url);
if ("".equals(response) || "{}".equals(response)) {
url = getBaseUrl(getMsbSuffixAddr(AaiConfig.AaiConsts.AAI_VNF_ADDR) + "vnf-name=" + vnfName);
response = getResponse(url);
}
return response;
}
private String getBaseUrl(String suffixUrl) {
String url = "";
try {
url = MicroServiceConfig.getMsbServerAddrWithHttpPrefix()+ suffixUrl;
} catch (Exception e) {
log.info("Failed to get msb address");
}
if ("".equals(url)) {
try {
url = "https://" + MicroServiceConfig.getServiceConfigInfoFromCBS("aai_config").replace("http://", "")
+ suffixUrl;
} catch (Exception e) {
log.info("Failed to get the address of A&AI.", e);
}
}
return url;
}
private String getMsbSuffixAddr(String suffixUrl) {
if (suffixUrl.length() <= 0) {
return "";
}
String[] addrSplits = suffixUrl.substring(1).split("/");
String[] conv = addrSplits[2].split("-");
addrSplits[2] = conv[0];
if (conv.length > 1) {
for(int i = 1; i < conv.length; i++) {
addrSplits[2] = addrSplits[2] + conv[i].substring(0, 1).toUpperCase() + conv[i]
.substring(1);
}
}
String ret = addrSplits[1];
addrSplits[1] = addrSplits[0] + "-" + addrSplits[2];
addrSplits[2] = ret;
addrSplits[0] = "api";
StringBuilder stringBuffer = new StringBuilder();
for (String split : addrSplits) {
stringBuffer.append("/" + split);
}
return stringBuffer.toString();
}
private String getResponse(String url) throws CorrelationException {
String response;
CloseableHttpClient httpClient = null;
HttpGet httpGet = new HttpGet(url);
try {
httpClient = HttpsUtils.getHttpClient(HttpsUtils.DEFUALT_TIMEOUT);
HttpResponse httpResponse = HttpsUtils.get(httpGet, getHeaders(), httpClient);
response = HttpsUtils.extractResponseEntity(httpResponse);
} catch (Exception e) {
throw new CorrelationException("Failed to get data from aai", e);
} finally {
httpGet.releaseConnection();
if (httpClient != null) {
try {
httpClient.close();
} catch (IOException e) {
log.warn("Failed to close http client!");
}
}
}
return response;
}
private Map getHeaders() {
Map<String, String> headers = new HashMap<>();
headers.put("X-TransactionId", AaiConfig.X_TRANSACTION_ID);
headers.put("X-FromAppId", AaiConfig.X_FROMAPP_ID);
headers.put("Authorization", AaiConfig.getAuthenticationCredentials());
headers.put("Accept", "application/json");
return headers;
}
}
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