01 /*
02 * Copyright 2008-2016 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.injection;
17
18 import griffon.core.injection.Binding;
19 import griffon.core.injection.Module;
20
21 import javax.annotation.Nonnull;
22 import java.util.ArrayList;
23 import java.util.List;
24
25 import static griffon.util.GriffonClassUtils.requireState;
26 import static java.util.Objects.requireNonNull;
27
28 /**
29 * @author Andres Almiray
30 * @since 2.0.0
31 */
32 public abstract class AbstractModule implements Module {
33 protected final List<Binding<?>> bindings = new ArrayList<>();
34 protected BindingBuilder<?> currentBinding;
35 protected boolean configured;
36
37 public final void configure() {
38 requireState(!configured, "Module " + this + " has already been configured");
39 doConfigure();
40 configured = true;
41 }
42
43 protected abstract void doConfigure();
44
45 @Nonnull
46 @Override
47 public final List<Binding<?>> getBindings() {
48 if (!configured) {
49 configure();
50 }
51
52 if (currentBinding != null) {
53 bindings.add(currentBinding.getBinding());
54 currentBinding = null;
55 }
56 return bindings;
57 }
58
59 protected <T> AnnotatedBindingBuilder<T> bind(@Nonnull Class<T> clazz) {
60 requireNonNull(clazz, "Argument 'class' must not be null");
61 if (currentBinding != null) {
62 bindings.add(currentBinding.getBinding());
63 }
64
65 AnnotatedBindingBuilder<T> builder = Bindings.bind(clazz);
66 currentBinding = builder;
67 return builder;
68 }
69 }
|