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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.openo.holmes.rulemgt.bolt.enginebolt;
import com.fasterxml.jackson.databind.ObjectMapper;
import java.io.ByteArrayOutputStream;
import java.io.UnsupportedEncodingException;
import javax.inject.Inject;
import org.apache.commons.lang3.StringUtils;
import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpDelete;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.client.methods.HttpPut;
import org.apache.http.client.methods.HttpRequestBase;
import org.apache.http.entity.BufferedHttpEntity;
import org.apache.http.entity.ByteArrayEntity;
import org.apache.http.impl.client.HttpClients;
import org.jvnet.hk2.annotations.Service;
import org.openo.holmes.common.exception.CorrelationException;
import org.openo.holmes.common.utils.I18nProxy;
import org.openo.holmes.rulemgt.RuleAppConfig;
import org.openo.holmes.rulemgt.bean.request.CorrelationCheckRule4Engine;
import org.openo.holmes.rulemgt.bean.request.CorrelationDeployRule4Engine;
import org.openo.holmes.rulemgt.constant.RuleMgtConstant;
@Service
public class EngineService {
@Inject
private RuleAppConfig ruleAppConfig;
protected HttpResponse delete(String packageName) throws Exception {
return deleteRequest(ruleAppConfig.getMsbServerAddr() + RuleMgtConstant.ENGINE_PATH + "/" + packageName);
}
protected HttpResponse check(CorrelationCheckRule4Engine correlationCheckRule4Engine) throws Exception {
ObjectMapper mapper = new ObjectMapper();
String content = mapper.writeValueAsString(correlationCheckRule4Engine);
return postRequest(ruleAppConfig.getMsbServerAddr() + RuleMgtConstant.ENGINE_PATH, content);
}
protected HttpResponse deploy(CorrelationDeployRule4Engine correlationDeployRule4Engine) throws Exception {
ObjectMapper mapper = new ObjectMapper();
String content = mapper.writeValueAsString(correlationDeployRule4Engine);
return putRequest(ruleAppConfig.getMsbServerAddr() + RuleMgtConstant.ENGINE_PATH, content);
}
private HttpResponse postRequest(String url, String content) throws Exception {
HttpClient httpClient = HttpClients.createDefault();
HttpPost httpPost = new HttpPost(url);
setHeader(httpPost);
if (StringUtils.isNotEmpty(content)) {
httpPost.setEntity(new ByteArrayEntity(content.getBytes()));
}
return httpClient.execute(httpPost);
}
private HttpResponse putRequest(String url, String content)
throws Exception {
HttpClient httpClient = HttpClients.createDefault();
HttpPut httpPut = new HttpPut(url);
setHeader(httpPut);
if (StringUtils.isNotEmpty(content)) {
httpPut.setEntity(new ByteArrayEntity(content.getBytes()));
}
return httpClient.execute(httpPut);
}
private HttpResponse deleteRequest(String url) throws Exception {
HttpClient httpClient = HttpClients.createDefault();
HttpDelete httpDelete = new HttpDelete(url);
setHeader(httpDelete);
return httpClient.execute(httpDelete);
}
private void setHeader(HttpRequestBase httpRequestBase) {
httpRequestBase.setHeader("Content-Type", "text/html;charset=UTF-8");
httpRequestBase.setHeader("Accept", "application/json");
httpRequestBase.setHeader("Content-Type", "application/json");
}
public byte[] getData(HttpEntity httpEntity) throws Exception {
BufferedHttpEntity bufferedHttpEntity = new BufferedHttpEntity(httpEntity);
ByteArrayOutputStream byteArrayOutputStream = new ByteArrayOutputStream();
bufferedHttpEntity.writeTo(byteArrayOutputStream);
byte[] responseBytes = byteArrayOutputStream.toByteArray();
return responseBytes;
}
public String getResponseContent(HttpResponse httpResponse) throws CorrelationException {
byte[] dataByte;
String result = null;
try {
HttpEntity httpEntity = httpResponse.getEntity();
if (httpEntity != null) {
byte[] responseBytes = getData(httpEntity);
dataByte = responseBytes;
result = bytesToString(dataByte);
}
return result;
} catch (Exception e) {
throw new CorrelationException(I18nProxy.RULE_MANAGEMENT_PARSE_DEPLOY_RESULT_ERROR, e);
}
}
private String bytesToString(byte[] bytes) throws UnsupportedEncodingException {
if (bytes != null) {
String returnStr = new String(bytes, "utf-8");
returnStr = StringUtils.trim(returnStr);
return returnStr;
}
return null;
}
}
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