001/* 002 * Copyright 2012-2018 the original author or authors. 003 * 004 * Licensed under the Apache License, Version 2.0 (the "License"); 005 * you may not use this file except in compliance with the License. 006 * You may obtain a copy of the License at 007 * 008 * http://www.apache.org/licenses/LICENSE-2.0 009 * 010 * Unless required by applicable law or agreed to in writing, software 011 * distributed under the License is distributed on an "AS IS" BASIS, 012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 013 * See the License for the specific language governing permissions and 014 * limitations under the License. 015 */ 016 017package org.springframework.boot.actuate.cache; 018 019import org.springframework.boot.actuate.cache.CachesEndpoint.CacheEntry; 020import org.springframework.boot.actuate.endpoint.annotation.DeleteOperation; 021import org.springframework.boot.actuate.endpoint.annotation.ReadOperation; 022import org.springframework.boot.actuate.endpoint.annotation.Selector; 023import org.springframework.boot.actuate.endpoint.web.WebEndpointResponse; 024import org.springframework.boot.actuate.endpoint.web.annotation.EndpointWebExtension; 025import org.springframework.lang.Nullable; 026 027/** 028 * {@link EndpointWebExtension} for the {@link CachesEndpoint}. 029 * 030 * @author Stephane Nicoll 031 * @since 2.1.0 032 */ 033@EndpointWebExtension(endpoint = CachesEndpoint.class) 034public class CachesEndpointWebExtension { 035 036 private final CachesEndpoint delegate; 037 038 public CachesEndpointWebExtension(CachesEndpoint delegate) { 039 this.delegate = delegate; 040 } 041 042 @ReadOperation 043 public WebEndpointResponse<CacheEntry> cache(@Selector String cache, 044 @Nullable String cacheManager) { 045 try { 046 CacheEntry entry = this.delegate.cache(cache, cacheManager); 047 int status = (entry != null) ? WebEndpointResponse.STATUS_OK 048 : WebEndpointResponse.STATUS_NOT_FOUND; 049 return new WebEndpointResponse<>(entry, status); 050 } 051 catch (NonUniqueCacheException ex) { 052 return new WebEndpointResponse<>(WebEndpointResponse.STATUS_BAD_REQUEST); 053 } 054 } 055 056 @DeleteOperation 057 public WebEndpointResponse<Void> clearCache(@Selector String cache, 058 @Nullable String cacheManager) { 059 try { 060 boolean cleared = this.delegate.clearCache(cache, cacheManager); 061 int status = (cleared ? WebEndpointResponse.STATUS_NO_CONTENT 062 : WebEndpointResponse.STATUS_NOT_FOUND); 063 return new WebEndpointResponse<>(status); 064 } 065 catch (NonUniqueCacheException ex) { 066 return new WebEndpointResponse<>(WebEndpointResponse.STATUS_BAD_REQUEST); 067 } 068 } 069 070}