01 /*
02 * SPDX-License-Identifier: Apache-2.0
03 *
04 * Copyright 2008-2017 the original author or authors.
05 *
06 * Licensed under the Apache License, Version 2.0 (the "License");
07 * you may not use this file except in compliance with the License.
08 * You may obtain a copy of the License at
09 *
10 * http://www.apache.org/licenses/LICENSE-2.0
11 *
12 * Unless required by applicable law or agreed to in writing, software
13 * distributed under the License is distributed on an "AS IS" BASIS,
14 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
15 * See the License for the specific language governing permissions and
16 * limitations under the License.
17 */
18 package org.codehaus.griffon.runtime.core.env;
19
20 import griffon.core.env.Environment;
21 import griffon.core.env.Metadata;
22
23 import javax.inject.Inject;
24 import javax.inject.Provider;
25
26 /**
27 * @author Andres Almiray
28 * @since 2.2.0
29 */
30 public class EnvironmentProvider implements Provider<Environment> {
31 @Inject
32 private Metadata metadata;
33
34 private static boolean isBlank(String value) {
35 return value == null || value.trim().length() == 0;
36 }
37
38 @Override
39 public Environment get() {
40 String envName = System.getProperty(Environment.KEY);
41 if (metadata != null && isBlank(envName)) {
42 envName = metadata.getEnvironment();
43 }
44
45 if (isBlank(envName)) {
46 return Environment.DEVELOPMENT;
47 }
48
49 Environment env = Environment.resolveEnvironment(envName);
50 if (env == null) {
51 try {
52 env = Environment.valueOf(envName.toUpperCase());
53 } catch (IllegalArgumentException e) {
54 // ignore
55 }
56 }
57 if (env == null) {
58 env = Environment.CUSTOM;
59 env.setName(envName);
60 }
61 return env;
62 }
63 }
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