| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you 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.apache.stratos.cep.extension; |
| |
| /** |
| * Member Request Handling Capability Window Processor |
| */ |
| |
| import org.wso2.siddhi.core.config.SiddhiContext; |
| import org.wso2.siddhi.core.executor.function.FunctionExecutor; |
| import org.wso2.siddhi.query.api.definition.Attribute; |
| import org.wso2.siddhi.query.api.extension.annotation.SiddhiExtension; |
| |
| @SiddhiExtension(namespace = "stratos", function = "divider") |
| public class MemeberRequestHandlingCapabilityWindowProcessor extends FunctionExecutor { |
| |
| Attribute.Type returnType = Attribute.Type.DOUBLE; |
| |
| @Override |
| public void init(Attribute.Type[] types, SiddhiContext siddhiContext) { |
| } |
| |
| @Override |
| protected Object process(Object obj) { |
| |
| double[] value = new double[2]; |
| if (obj instanceof Object[]) { |
| int i=0; |
| for (Object aObj : (Object[]) obj) { |
| value[i]= Double.parseDouble(String.valueOf(aObj)); |
| i++; |
| } |
| }//to do avoid deviding zero number of active instances won't be zero cz there is min |
| Double unit = (value[0] / value[1]); |
| if(!unit.isNaN() && !unit.isInfinite()) |
| return unit; |
| else |
| return 0.0; |
| |
| } |
| |
| @Override |
| public void destroy() { |
| |
| } |
| |
| @Override |
| public Attribute.Type getReturnType() { |
| return returnType; |
| } |
| } |
