001 /* 002 * Licensed to the Apache Software Foundation (ASF) under one or more 003 * contributor license agreements. See the NOTICE file distributed with 004 * this work for additional information regarding copyright ownership. 005 * The ASF licenses this file to You under the Apache License, Version 2.0 006 * (the "License"); you may not use this file except in compliance with 007 * the License. You may obtain a copy of the License at 008 * 009 * http://www.apache.org/licenses/LICENSE-2.0 010 * 011 * Unless required by applicable law or agreed to in writing, software 012 * distributed under the License is distributed on an "AS IS" BASIS, 013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 014 * See the License for the specific language governing permissions and 015 * limitations under the License. 016 */ 017 package org.apache.commons.monitoring.reporting.web.handler.internal; 018 019 import org.apache.commons.monitoring.configuration.Configuration; 020 import org.apache.commons.monitoring.reporting.web.handler.api.Regex; 021 import org.apache.commons.monitoring.reporting.web.handler.api.TemplateHelper; 022 023 import javax.servlet.http.HttpServletRequest; 024 import javax.servlet.http.HttpServletResponse; 025 import java.lang.reflect.Method; 026 import java.util.HashMap; 027 import java.util.Map; 028 import java.util.regex.Pattern; 029 030 public class EndpointInfo { 031 private final Map<Pattern, Invoker> invokers = new HashMap<Pattern, Invoker>(); 032 033 public Map<Pattern, Invoker> getInvokers() { 034 return invokers; 035 } 036 037 public static EndpointInfo build(final Class<?> endpointClass, final String id, final String rootMapping) { 038 final EndpointInfo info = new EndpointInfo(); 039 final Object instance = Configuration.newInstance(endpointClass); 040 for (final Method method : endpointClass.getMethods()) { 041 if (method.getDeclaringClass() == Object.class) { 042 continue; 043 } 044 045 final Regex regex = method.getAnnotation(Regex.class); 046 if (regex != null) { 047 final Pattern pattern = Pattern.compile(rootMapping + regex.value()); 048 final Invoker invoker = new Invoker(instance, method, id); 049 int partIdx = 1; // regex index, it starts from 1 050 for (final Class<?> clazz : method.getParameterTypes()) { 051 if (HttpServletRequest.class.equals(clazz)) { 052 invoker.addRequestParameter(); 053 } else if (HttpServletResponse.class.equals(clazz)) { 054 invoker.addResponseParameter(); 055 } else if (TemplateHelper.class.equals(clazz)) { 056 invoker.addTemplateHelper(id); 057 } else { 058 invoker.addSegmentParameter(clazz, partIdx); 059 partIdx++; 060 } 061 } 062 info.invokers.put(pattern, invoker); 063 } 064 } 065 return info; 066 } 067 }