tooling/apt/src/main/java/org/apache/camel/tools/apt/AbstractCamelAnnotationProcessor.java

/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You 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 org.apache.camel.tools.apt;

import java.util.Set;

import javax.annotation.processing.AbstractProcessor;
import javax.annotation.processing.RoundEnvironment;
import javax.lang.model.SourceVersion;
import javax.lang.model.element.TypeElement;
import javax.tools.Diagnostic.Kind;

import static org.apache.camel.tools.apt.AnnotationProcessorHelper.dumpExceptionToErrorFile;

public abstract class AbstractCamelAnnotationProcessor extends AbstractProcessor {

    @Override
    public SourceVersion getSupportedSourceVersion() {
        return SourceVersion.latest();
    }

    @Override
    public boolean process(Set<? extends TypeElement> annotations, RoundEnvironment roundEnv) {
        try {
            if (roundEnv.processingOver()) {
                return false;
            }
            doProcess(annotations, roundEnv);
        } catch (Throwable e) {
            processingEnv.getMessager().printMessage(Kind.ERROR, "Unable to process annotated elements in " + getClass().getSimpleName() + ": " + e.getMessage());
            dumpExceptionToErrorFile("camel-apt-error.log", "Error processing annotation in " + getClass().getSimpleName(), e);
        }
        return false;
    }

    protected abstract void doProcess(Set<? extends TypeElement> annotations, RoundEnvironment roundEnv) throws Exception;

}