001 /*
002 * Copyright 2008-2016 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 package org.codehaus.griffon.runtime.core;
017
018 import griffon.core.Configuration;
019
020 import javax.annotation.Nonnull;
021 import javax.annotation.Nullable;
022 import java.beans.PropertyEditor;
023 import java.util.Map;
024 import java.util.Properties;
025 import java.util.ResourceBundle;
026
027 import static griffon.core.editors.PropertyEditorResolver.findEditor;
028 import static griffon.util.CollectionUtils.toProperties;
029 import static griffon.util.TypeUtils.castToBoolean;
030 import static griffon.util.TypeUtils.castToDouble;
031 import static griffon.util.TypeUtils.castToFloat;
032 import static griffon.util.TypeUtils.castToInt;
033 import static griffon.util.TypeUtils.castToLong;
034 import static java.util.Objects.requireNonNull;
035
036 /**
037 * @author Andres Almiray
038 * @since 2.2.0
039 */
040 public class ConfigurationDecorator implements Configuration {
041 protected final Configuration delegate;
042
043 public ConfigurationDecorator(@Nonnull Configuration delegate) {
044 this.delegate = requireNonNull(delegate, "Argument 'delegate' must not be null.");
045 }
046
047 @Override
048 @Nullable
049 public Object get(@Nonnull String key) {
050 return delegate.get(key);
051 }
052
053 @Nullable
054 @Override
055 @SuppressWarnings("unchecked")
056 public <T> T get(@Nonnull String key, @Nullable T defaultValue) {
057 return delegate.get(key, defaultValue);
058 }
059
060 @Nullable
061 @Override
062 public Object getAt(@Nonnull String key) {
063 return get(key);
064 }
065
066 @Nullable
067 @Override
068 public <T> T getAt(@Nonnull String key, @Nullable T defaultValue) {
069 return get(key, defaultValue);
070 }
071
072 @Override
073 public boolean getAsBoolean(@Nonnull String key) {
074 return getAsBoolean(key, false);
075 }
076
077 @Override
078 public boolean getAsBoolean(@Nonnull String key, boolean defaultValue) {
079 return castToBoolean(get(key), defaultValue);
080 }
081
082 @Override
083 public int getAsInt(@Nonnull String key) {
084 return getAsInt(key, 0);
085 }
086
087 @Override
088 public int getAsInt(@Nonnull String key, int defaultValue) {
089 return castToInt(get(key), defaultValue);
090 }
091
092 @Override
093 public long getAsLong(@Nonnull String key) {
094 return getAsLong(key, 0L);
095 }
096
097 @Override
098 public long getAsLong(@Nonnull String key, long defaultValue) {
099 return castToLong(get(key), defaultValue);
100 }
101
102 @Override
103 public float getAsFloat(@Nonnull String key) {
104 return getAsFloat(key, 0f);
105 }
106
107 @Override
108 public float getAsFloat(@Nonnull String key, float defaultValue) {
109 return castToFloat(get(key), defaultValue);
110 }
111
112 @Override
113 public double getAsDouble(@Nonnull String key) {
114 return getAsDouble(key, 0d);
115 }
116
117 @Override
118 public double getAsDouble(@Nonnull String key, double defaultValue) {
119 return castToDouble(get(key), defaultValue);
120 }
121
122 @Nullable
123 @Override
124 public String getAsString(@Nonnull String key) {
125 return getAsString(key, null);
126 }
127
128 @Nullable
129 @Override
130 public String getAsString(@Nonnull String key, @Nullable String defaultValue) {
131 return delegate.getAsString(key, defaultValue);
132 }
133
134 @Nullable
135 @Override
136 public <T> T getAs(@Nonnull String key) {
137 return delegate.getAs(key);
138 }
139
140 @Nullable
141 @Override
142 public <T> T getAs(@Nonnull String key, @Nullable T defaultValue) {
143 return delegate.getAs(key, defaultValue);
144 }
145
146 @Nullable
147 @Override
148 public <T> T getConverted(@Nonnull String key, @Nonnull Class<T> type) {
149 return delegate.getConverted(key, type);
150 }
151
152 @Nullable
153 @Override
154 public <T> T getConverted(@Nonnull String key, @Nonnull Class<T> type, @Nullable T defaultValue) {
155 return delegate.getConverted(key, type, defaultValue);
156 }
157
158 @Nonnull
159 @Override
160 public Properties asProperties() {
161 return toProperties(asFlatMap());
162 }
163
164 @Override
165 public boolean containsKey(@Nonnull String key) {
166 return delegate.containsKey(key);
167 }
168
169 @Nonnull
170 @Override
171 public Map<String, Object> asFlatMap() {
172 return delegate.asFlatMap();
173 }
174
175 @Nonnull
176 @Override
177 public ResourceBundle asResourceBundle() {
178 return delegate.asResourceBundle();
179 }
180
181 @SuppressWarnings("unchecked")
182 protected <T> T convertValue(@Nullable Object value, @Nonnull Class<T> type) {
183 if (value != null) {
184 if (type.isAssignableFrom(value.getClass())) {
185 return (T) value;
186 } else {
187 PropertyEditor editor = findEditor(type);
188 editor.setValue(value);
189 return (T) editor.getValue();
190 }
191 }
192 return null;
193 }
194 }
|