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RuntimeLinker.java
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RuntimeLinker.java
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/*
* Copyright (C) 2012 Square, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package dagger.internal;
import java.lang.reflect.Constructor;
import java.util.List;
/**
* Linker suitable for application use at runtime. This looks for generated code
* and falls back to reflection.
*/
public final class RuntimeLinker extends Linker {
@Override protected Binding<?> createAtInjectBinding(
String key, String className, boolean mustBeInjectable) throws ClassNotFoundException {
try {
Class<?> c = Class.forName(className + "$InjectAdapter");
Constructor<?> constructor = c.getConstructor();
constructor.setAccessible(true);
return (Binding<?>) constructor.newInstance();
} catch (Exception ignored) {
// Fall back to reflection.
}
// Handle class bindings by injecting @Inject-annotated members.
Class<?> c = Class.forName(className);
if (c.isInterface()) {
return null;
}
return AtInjectBinding.create(c, mustBeInjectable);
}
@Override protected void reportErrors(List<String> errors) {
if (errors.isEmpty()) {
return;
}
StringBuilder message = new StringBuilder();
message.append("Errors creating object graph:");
for (String error : errors) {
message.append("\n ").append(error);
}
throw new IllegalStateException(message.toString());
}
}