01 /*
02 * Copyright 2008-2015 the original author or authors.
03 *
04 * Licensed under the Apache License, Version 2.0 (the "License");
05 * you may not use this file except in compliance with the License.
06 * You may obtain a copy of the License at
07 *
08 * http://www.apache.org/licenses/LICENSE-2.0
09 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16 package org.codehaus.griffon.runtime.core;
17
18 import javax.annotation.Nonnull;
19 import javax.annotation.Nullable;
20 import javax.inject.Inject;
21 import java.util.Enumeration;
22 import java.util.LinkedHashMap;
23 import java.util.Map;
24 import java.util.MissingResourceException;
25 import java.util.ResourceBundle;
26
27 import static griffon.util.ConfigUtils.getConfigValue;
28 import static griffon.util.GriffonNameUtils.requireNonBlank;
29 import static java.util.Collections.unmodifiableMap;
30 import static java.util.Objects.requireNonNull;
31
32 /**
33 * @author Andres Almiray
34 * @since 2.0.0
35 */
36 public class ResourceBundleConfiguration extends AbstractConfiguration {
37 protected static final String ERROR_KEY_BLANK = "Argument 'key' must not be blank";
38 private final ResourceBundle resourceBundle;
39 private final Map<String, Object> flatMap = new LinkedHashMap<>();
40
41 @Inject
42 public ResourceBundleConfiguration(@Nonnull ResourceBundle resourceBundle) {
43 this.resourceBundle = requireNonNull(resourceBundle, "Argument 'resourceBundle' must not be null");
44 Enumeration<String> keys = resourceBundle.getKeys();
45 while (keys.hasMoreElements()) {
46 String key = keys.nextElement();
47 flatMap.put(key, getConfigValue(resourceBundle, key));
48 }
49 }
50
51 public boolean containsKey(@Nonnull String key) {
52 return resourceBundle.containsKey(requireNonBlank(key, ERROR_KEY_BLANK));
53 }
54
55 @Nonnull
56 @Override
57 public Map<String, Object> asFlatMap() {
58 return unmodifiableMap(flatMap);
59 }
60
61 @Nonnull
62 @Override
63 public ResourceBundle asResourceBundle() {
64 return resourceBundle;
65 }
66
67 @Nullable
68 @Override
69 public Object get(@Nonnull String key) {
70 try {
71 return getConfigValue(resourceBundle, key);
72 } catch (MissingResourceException mre) {
73 return null;
74 }
75 }
76 }
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