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/*-
* ================================================================================
* eCOMP Portal SDK
* ================================================================================
* Copyright (C) 2017 AT&T Intellectual Property
* ================================================================================
* 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.openecomp.portalsdk.core.controller;
import java.io.PrintWriter;
import java.util.HashMap;
import java.util.LinkedList;
import java.util.List;
import java.util.Map;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.apache.jcs.JCS;
import org.apache.jcs.admin.CacheRegionInfo;
import org.apache.jcs.admin.JCSAdminBean;
import org.apache.jcs.engine.behavior.ICacheElement;
import org.json.JSONArray;
import org.json.JSONObject;
import org.openecomp.portalsdk.core.logging.logic.EELFLoggerDelegate;
import org.openecomp.portalsdk.core.web.support.JsonMessage;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.servlet.ModelAndView;
import com.fasterxml.jackson.databind.DeserializationFeature;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.databind.SerializationFeature;
@Controller
@RequestMapping("/")
public class CacheAdminController extends RestrictedBaseController {
EELFLoggerDelegate logger = EELFLoggerDelegate.getLogger(CacheAdminController.class);
private JCSAdminBean jcsAdminBean = new JCSAdminBean();
@RequestMapping(value = {"/jcs_admin" }, method = RequestMethod.GET)
public ModelAndView cacheAdmin(HttpServletRequest request) {
Map<String, Object> model = new HashMap<String, Object>();
model.put("model", getRegions());
return new ModelAndView(getViewName(),model);
}
@RequestMapping(value = {"/get_regions" }, method = RequestMethod.GET)
public void getRegions(HttpServletRequest request,HttpServletResponse response) {
// ObjectMapper mapper = new ObjectMapper();
try{
JsonMessage msg = new JsonMessage(getRegions().toString());
JSONObject j = new JSONObject(msg);
response.getWriter().write(j.toString());
}catch (Exception e) {
e.printStackTrace();
}
}
@RequestMapping(value = {"/jcs_admin/clearRegion" }, method = RequestMethod.GET)
public void clearRegion(HttpServletRequest request,HttpServletResponse response) throws Exception {
String cacheName = (String) request.getParameter("cacheName");
clearCacheRegion(cacheName);
response.setContentType("application/json");
PrintWriter out = response.getWriter();
out.write(getRegions().toString());
}
@RequestMapping(value = {"/jcs_admin/clearAll" }, method = RequestMethod.GET)
public void clearAll(HttpServletRequest request,HttpServletResponse response) throws Exception {
clearAllRegions();
response.setContentType("application/json");
PrintWriter out = response.getWriter();
out.write(getRegions().toString());
}
@RequestMapping(value = {"/jcs_admin/clearItem" }, method = RequestMethod.GET)
public void clearItem(HttpServletRequest request,HttpServletResponse response) throws Exception {
String keyName = (String) request.getParameter("keyName");
String cacheName = (String) request.getParameter("cacheName");
clearCacheRegionItem(cacheName, keyName);
response.setContentType("application/json");
PrintWriter out = response.getWriter();
out.write(getRegions().toString());
}
@RequestMapping(value = {"/jcs_admin/showItemDetails" }, method = RequestMethod.GET)
public void showItemDetails(HttpServletRequest request,HttpServletResponse response) throws Exception {
String cacheName = (String) request.getParameter("cacheName");
String keyName = (String) request.getParameter("keyName");
String details = null;
try {
details = getItemDetails(cacheName, keyName);
} catch (Exception e) {
details = "There was an error retrieving the region details. Please try again.";
logger.error(EELFLoggerDelegate.errorLogger, "An error has occurred while retrieving the item details for the cache region - "
+ cacheName + e.getMessage());
}
response.setContentType("application/json");
PrintWriter out = response.getWriter();
out.write(details);
}
@RequestMapping(value = {"/jcs_admin/showRegionDetails" }, method = RequestMethod.GET)
public void showRegionDetails(HttpServletRequest request,HttpServletResponse response) throws Exception {
String cacheName = (String) request.getParameter("cacheName");
String details = null;
try {
details = getRegionStats(cacheName);
} catch (Exception e) {
details = "There was an error retrieving the region details. Please try again.";
logger.error(EELFLoggerDelegate.errorLogger, "An error has occurred while retrieving the region details for the cache region - "
+ cacheName + e.getMessage());
}
response.setContentType("application/json");
PrintWriter out = response.getWriter();
out.write(details);
}
@SuppressWarnings("unchecked")
public JSONArray getRegions(){
LinkedList<CacheRegionInfo> regions = null;
JSONArray ja = new JSONArray();
try {
regions = getJcsAdminBean().buildCacheInfo();
ObjectMapper mapper = new ObjectMapper();
mapper.configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false);
mapper.disable(SerializationFeature.FAIL_ON_EMPTY_BEANS);
for (CacheRegionInfo cri : regions) {
JSONObject jo = new JSONObject();
jo.put("cacheName", cri.getCache().getCacheName());
jo.put("size", cri.getCache().getSize());
jo.put("byteCount", cri.getByteCount());
jo.put("status", cri.getStatus());
jo.put("hitCountRam", cri.getCache().getHitCountRam());
jo.put("hitCountAux", cri.getCache().getHitCountAux());
jo.put("missCountNotFound", cri.getCache().getMissCountNotFound());
jo.put("missCountExpired", cri.getCache().getMissCountExpired());
jo.put("items",new JSONArray(mapper.writeValueAsString(getRegionItems(cri.getCache().getCacheName()))));
ja.put(jo);
}
} catch (Exception e) {
logger.error(EELFLoggerDelegate.errorLogger, "An error has occurred while retrieving the list of cache regions" + e.getMessage());
}
return ja;
}
private String getRegionStats(String cacheName) throws Exception {
String stats = "";
JCS cache = JCS.getInstance(cacheName);
stats = cache.getStats();
return stats;
}
private String getItemDetails(String cacheName, String keyName)
throws Exception {
String details = "";
JCS cache = JCS.getInstance(cacheName);
ICacheElement element = cache.getCacheElement(keyName);
if (element != null) {
ObjectMapper mapper = new ObjectMapper();
mapper.disable(SerializationFeature.FAIL_ON_EMPTY_BEANS);
details = mapper.writeValueAsString(element);
}
return details;
}
@SuppressWarnings("rawtypes")
private List getRegionItems(String cacheName) {
List items = null;
try {
items = getJcsAdminBean().buildElementInfo(cacheName);
} catch (Exception e) {
logger.error(EELFLoggerDelegate.errorLogger, "An error has occurred while retrieving the list of items for cache region - "
+ cacheName + e.getMessage());
}
return items;
}
private void clearAllRegions() {
try {
getJcsAdminBean().clearAllRegions();
} catch (Exception e) {
logger.error(EELFLoggerDelegate.errorLogger, "An error has occurred while clearing all cache regions." + e.getMessage());
}
}
private void clearCacheRegion(String cacheName) {
try {
getJcsAdminBean().clearRegion(cacheName);
} catch (Exception e) {
logger.error(EELFLoggerDelegate.errorLogger, "An error has occurred while clearing the cache region - "
+ cacheName + e.getMessage());
}
}
private void clearCacheRegionItem(String cacheName, String keyName) {
try {
getJcsAdminBean().removeItem(cacheName, keyName);
} catch (Exception e) {
logger.error(EELFLoggerDelegate.errorLogger, "An error has occurred while removing cache region item - "
+ keyName + e.getMessage());
}
}
public JCSAdminBean getJcsAdminBean() {
return jcsAdminBean;
}
public void setJcsAdminBean(JCSAdminBean jcsAdminBean) {
this.jcsAdminBean = jcsAdminBean;
}
}
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