01 /*
02 * Copyright 2008-2017 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.configuration;
17
18 import griffon.exceptions.InstanceMethodInvocationException;
19 import org.slf4j.Logger;
20 import org.slf4j.LoggerFactory;
21
22 import javax.annotation.Nonnull;
23 import java.lang.reflect.Field;
24
25 import static griffon.core.GriffonExceptionHandler.sanitize;
26 import static griffon.util.GriffonClassUtils.invokeExactInstanceMethod;
27 import static griffon.util.GriffonNameUtils.getSetterName;
28 import static java.util.Objects.requireNonNull;
29
30 /**
31 * @author Andres Almiray
32 * @since 2.11.0
33 */
34 public class FieldInjectionPoint extends InjectionPoint {
35 private static final Logger LOG = LoggerFactory.getLogger(FieldInjectionPoint.class);
36
37 private final Field field;
38
39 public FieldInjectionPoint(@Nonnull Field field, @Nonnull String configuration, @Nonnull String key, @Nonnull String format) {
40 super(configuration, key, format);
41 this.field = requireNonNull(field, "Argument 'field' must not be null");
42 }
43
44 @Nonnull
45 public Field getField() {
46 return field;
47 }
48
49 public void setValue(@Nonnull Object instance, Object value) {
50 requireNonNull(instance, "Argument 'instance' must not be null");
51 String setter = getSetterName(field.getName());
52 try {
53 invokeExactInstanceMethod(instance, setter, value);
54 } catch (InstanceMethodInvocationException imie) {
55 try {
56 field.setAccessible(true);
57 field.set(instance, value);
58 } catch (IllegalAccessException e) {
59 LOG.warn("Cannot set value on field {} of instance {}", getConfiguration(), instance, sanitize(e));
60 }
61 }
62 }
63
64 @Nonnull
65 public Class<?> getType() {
66 return field.getType();
67 }
68
69 @Override
70 public String toString() {
71 final StringBuilder sb = new StringBuilder("FieldInjectionPoint{");
72 sb.append("field=").append(field);
73 sb.append(", configuration='").append(getConfiguration()).append('\'');
74 sb.append(", key='").append(getKey()).append('\'');
75 sb.append(", format='").append(getFormat()).append('\'');
76 sb.append('}');
77 return sb.toString();
78 }
79 }
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