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 griffon.core.Context;
19
20 import javax.annotation.Nonnull;
21 import javax.annotation.Nullable;
22 import java.util.Map;
23 import java.util.concurrent.ConcurrentHashMap;
24
25 import static griffon.util.GriffonNameUtils.requireNonBlank;
26
27 /**
28 * @author Andres Almiray
29 * @since 2.2.0
30 */
31 public class DefaultContext extends AbstractContext {
32 protected static final String ERROR_KEY_BLANK = "Argument 'key' must not be blank";
33 private final Map<String, Object> attributes = new ConcurrentHashMap<>();
34
35 public DefaultContext() {
36 this(null);
37 }
38
39 public DefaultContext(@Nullable Context parentContext) {
40 super(parentContext);
41 }
42
43 @Nullable
44 @Override
45 protected Object doGet(@Nonnull String key) {
46 requireNonBlank(key, ERROR_KEY_BLANK);
47 return attributes.get(key);
48 }
49
50 @Override
51 public boolean containsKey(@Nonnull String key) {
52 requireNonBlank(key, ERROR_KEY_BLANK);
53 return attributes.containsKey(key);
54 }
55
56 @Nullable
57 @Override
58 public Object remove(@Nonnull String key) {
59 requireNonBlank(key, ERROR_KEY_BLANK);
60 return attributes.remove(key);
61 }
62
63 @Override
64 public void put(@Nonnull String key, @Nullable Object value) {
65 requireNonBlank(key, ERROR_KEY_BLANK);
66 attributes.put(key, value);
67 }
68
69 @Override
70 public void putAt(@Nonnull String key, @Nullable Object value) {
71 put(key, value);
72 }
73
74 @Override
75 public void destroy() {
76 attributes.clear();
77 super.destroy();
78 }
79 }
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