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/**
* Copyright 2016 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.openo.msb.wrapper;
import java.io.IOException;
import org.apache.http.ParseException;
import org.apache.http.client.methods.CloseableHttpResponse;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClients;
import org.apache.http.util.EntityUtils;
import org.openo.msb.api.MetricsInfo;
import org.openo.msb.wrapper.util.MetricsUtil;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import com.fasterxml.jackson.annotation.JsonAutoDetect.Visibility;
import com.fasterxml.jackson.annotation.PropertyAccessor;
import com.fasterxml.jackson.databind.DeserializationFeature;
import com.fasterxml.jackson.databind.ObjectMapper;
public class MetricsServiceWrapper {
private static final Logger LOGGER = LoggerFactory
.getLogger(MetricsServiceWrapper.class);
public static MetricsInfo getMetricsInfo() {
String metricsUrl = MetricsUtil.adminContextPath;
String metricsJson = sendGetRequest(metricsUrl);
metricsJson = metricsJson.replace("E_", "");//.replaceAll("(?![0-9])(\\.)(?![0-9])", "_").replace("-", "_")
ObjectMapper mapper = new ObjectMapper();
mapper.setVisibility(PropertyAccessor.FIELD, Visibility.ANY);
mapper.configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES,
false);
MetricsInfo metricsInfo = new MetricsInfo();
try {
metricsInfo = mapper.readValue(metricsJson, MetricsInfo.class);
} catch (Exception e) {
// TODO Auto-generated catch block
LOGGER.error("Jackson readValue to metricsInfo throw exception", e);
}
return metricsInfo;
}
public static String sendGetRequest(String url) {
CloseableHttpClient httpClient = HttpClients.createDefault();
HttpGet httpGet = new HttpGet(url);
try {
CloseableHttpResponse res = httpClient.execute(httpGet);
try {
if (res.getStatusLine().getStatusCode() == MetricsUtil.SC_OK) {
return EntityUtils.toString(res.getEntity());
}
} finally {
res.close();
}
} catch (ParseException e) {
LOGGER.error("HttpClient throw ParseException:" + url, e);
} catch (IOException e) {
LOGGER.error("HttpClient throw IOException:" + url, e);
}
finally{
try {
httpClient.close();
} catch (IOException e) {
// TODO Auto-generated catch block
LOGGER.error("HttpClient Close throw IOException", e);
}
}
return null;
}
}
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