ProcessingException.java
/*
* Copyright 2018 The Android Open Source Project
*
* 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 androidx.appsearch.compiler;
import androidx.annotation.NonNull;
import androidx.annotation.Nullable;
import androidx.annotation.RestrictTo;
import java.util.ArrayList;
import java.util.List;
import javax.annotation.processing.Messager;
import javax.lang.model.element.Element;
import javax.tools.Diagnostic;
/**
* An exception thrown from the appsearch annotation processor to indicate something went wrong.
* @hide
*/
@RestrictTo(RestrictTo.Scope.LIBRARY_GROUP)
final class ProcessingException extends Exception {
@Nullable
private final Element mCulprit;
/**
* Warnings associated with this error which should be reported alongside it at a lower level.
*/
private final List<ProcessingException> mWarnings = new ArrayList<>();
ProcessingException(@NonNull String message, @Nullable Element culprit) {
super(message);
mCulprit = culprit;
}
public void addWarning(@NonNull ProcessingException warning) {
mWarnings.add(warning);
}
public void printDiagnostic(Messager messager) {
printDiagnostic(messager, Diagnostic.Kind.ERROR);
}
private void printDiagnostic(Messager messager, Diagnostic.Kind level) {
messager.printMessage(level, getMessage(), mCulprit);
for (ProcessingException warning : mWarnings) {
warning.printDiagnostic(messager, Diagnostic.Kind.WARNING);
}
}
}