Allocate Rule
[holmes/rule-management.git] / rulemgt / src / main / java / org / onap / holmes / rulemgt / send / Ip4AddingRule.java
diff --git a/rulemgt/src/main/java/org/onap/holmes/rulemgt/send/Ip4AddingRule.java b/rulemgt/src/main/java/org/onap/holmes/rulemgt/send/Ip4AddingRule.java
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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.rulemgt.send;
+
+import lombok.extern.slf4j.Slf4j;
+import org.jvnet.hk2.annotations.Service;
+import org.onap.holmes.common.api.entity.CorrelationRule;
+import org.onap.holmes.rulemgt.wrapper.RuleQueryWrapper;
+
+import javax.inject.Inject;
+import java.util.*;
+
+@Service
+@Slf4j
+public class Ip4AddingRule {
+
+    @Inject
+    private RuleQueryWrapper ruleQueryWrapper;
+    private List<String> engineService;
+
+    public void getIpList(List<String> ipList){
+        engineService = ipList;
+    }
+
+    public String getEngineIp4AddRule() {
+        List<CorrelationRule> ipRuleList  = new ArrayList<>();
+        LinkedHashMap<String,Integer> linkedHashMap = new LinkedHashMap();
+
+        try{
+            for(String ip : engineService){
+                ipRuleList = ruleQueryWrapper.queryRuleByEngineInstance(ip);
+                if(ipRuleList != null) {
+                    linkedHashMap.put(ip, ipRuleList.size());
+                }
+            }
+        }catch (Exception e){
+            log.error("getEngineIp4AddRule failed !" + e.getMessage());
+        }
+
+        //min
+        Collection<Integer> c = linkedHashMap.values();
+        Object[] obj = c.toArray();
+        Arrays.sort(obj);
+        String ip = null;
+        for(String getKey: linkedHashMap.keySet()){
+            if(linkedHashMap.get(getKey).equals(obj[0])){
+                ip = getKey;
+            }
+        }
+        return ip;
+    }
+}