| /* |
| * Copyright (C) 2014 The Dagger Authors. |
| * |
| * 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.codegen.base; |
| |
| import static com.google.common.base.Preconditions.checkNotNull; |
| import static javax.tools.Diagnostic.Kind.ERROR; |
| |
| import com.squareup.javapoet.ClassName; |
| import java.util.Optional; |
| import javax.annotation.processing.Messager; |
| import javax.lang.model.element.Element; |
| |
| /** |
| * An exception thrown to indicate that a source file could not be generated. |
| * |
| * <p>This exception <b>should not</b> be used to report detectable, logical errors as it may mask |
| * other errors that might have been caught upon further processing. Use a {@link ValidationReport} |
| * for that. |
| */ |
| public final class SourceFileGenerationException extends Exception { |
| private final Element associatedElement; |
| |
| SourceFileGenerationException( |
| Optional<ClassName> generatedClassName, Throwable cause, Element associatedElement) { |
| super(createMessage(generatedClassName, cause.getMessage()), cause); |
| this.associatedElement = checkNotNull(associatedElement); |
| } |
| |
| private static String createMessage(Optional<ClassName> generatedClassName, String message) { |
| return String.format("Could not generate %s: %s.", |
| generatedClassName.isPresent() |
| ? generatedClassName.get() |
| : "unknown file", |
| message); |
| } |
| |
| public void printMessageTo(Messager messager) { |
| messager.printMessage(ERROR, getMessage(), associatedElement); |
| } |
| } |