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.devtools.env; 018 019import java.io.File; 020import java.io.IOException; 021import java.util.Properties; 022 023import org.springframework.boot.SpringApplication; 024import org.springframework.boot.env.EnvironmentPostProcessor; 025import org.springframework.core.env.ConfigurableEnvironment; 026import org.springframework.core.env.PropertiesPropertySource; 027import org.springframework.core.io.FileSystemResource; 028import org.springframework.core.io.support.PropertiesLoaderUtils; 029import org.springframework.util.StringUtils; 030 031/** 032 * {@link EnvironmentPostProcessor} to add devtools properties from the user's home 033 * folder. 034 * 035 * @author Phillip Webb 036 * @author Andy Wilkinson 037 * @since 1.3.0 038 */ 039public class DevToolsHomePropertiesPostProcessor implements EnvironmentPostProcessor { 040 041 private static final String FILE_NAME = ".spring-boot-devtools.properties"; 042 043 @Override 044 public void postProcessEnvironment(ConfigurableEnvironment environment, 045 SpringApplication application) { 046 File home = getHomeFolder(); 047 File propertyFile = (home != null) ? new File(home, FILE_NAME) : null; 048 if (propertyFile != null && propertyFile.exists() && propertyFile.isFile()) { 049 FileSystemResource resource = new FileSystemResource(propertyFile); 050 Properties properties; 051 try { 052 properties = PropertiesLoaderUtils.loadProperties(resource); 053 environment.getPropertySources().addFirst( 054 new PropertiesPropertySource("devtools-local", properties)); 055 } 056 catch (IOException ex) { 057 throw new IllegalStateException("Unable to load " + FILE_NAME, ex); 058 } 059 } 060 } 061 062 protected File getHomeFolder() { 063 String home = System.getProperty("user.home"); 064 if (StringUtils.hasLength(home)) { 065 return new File(home); 066 } 067 return null; 068 } 069 070}