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mercyblitzmercyblitz
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Merge pull request #152 from mercyblitz/dev
Features 0.1.1
2 parents fa41bde + 2f08d05 commit e0577cf

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‎.gitignore‎

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# maven ignore
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target/
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!.mvn/wrapper/*
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dependency-reduced-pom.xml
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# eclipse ignore
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.settings/

‎microsphere-annotation-processor/pom.xml‎

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</dependencies>
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<build>
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<plugins>
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<plugin>
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<groupId>org.apache.maven.plugins</groupId>
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<artifactId>maven-compiler-plugin</artifactId>
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<configuration>
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<compilerArgument>-proc:none</compilerArgument>
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</configuration>
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</plugin>
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<plugin>
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<groupId>org.apache.maven.plugins</groupId>
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<artifactId>maven-shade-plugin</artifactId>
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<executions>
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<execution>
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<phase>package</phase>
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<goals>
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<goal>shade</goal>
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</goals>
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<configuration>
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<artifactSet>
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<includes>
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<include>io.github.microsphere-projects:microsphere-java-core</include>
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</includes>
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</artifactSet>
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</configuration>
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</execution>
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</executions>
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</plugin>
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</plugins>
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</build>
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</project>

‎microsphere-annotation-processor/src/main/java/io/microsphere/annotation/processor/ConfigurationPropertyAnnotationProcessor.java‎

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/*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership.
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* The ASF licenses this file to You under the Apache License, Version 2.0
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* (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package io.microsphere.annotation.processor;
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import io.microsphere.annotation.ConfigurationProperty;
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import io.microsphere.annotation.processor.model.util.ConfigurationPropertyJSONElementVisitor;
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import io.microsphere.json.JSONArray;
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import javax.annotation.processing.AbstractProcessor;
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import javax.annotation.processing.Messager;
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import javax.annotation.processing.ProcessingEnvironment;
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import javax.annotation.processing.Processor;
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import javax.annotation.processing.RoundEnvironment;
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import javax.annotation.processing.SupportedAnnotationTypes;
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import javax.lang.model.SourceVersion;
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import javax.lang.model.element.Element;
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import javax.lang.model.element.TypeElement;
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import java.util.Iterator;
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import java.util.Set;
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import static io.microsphere.annotation.processor.ConfigurationPropertyAnnotationProcessor.CONFIGURATION_PROPERTY_ANNOTATION_CLASS_NAME;
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import static io.microsphere.annotation.processor.util.MessagerUtils.printNote;
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import static io.microsphere.constants.SymbolConstants.COMMA_CHAR;
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import static io.microsphere.constants.SymbolConstants.LEFT_SQUARE_BRACKET_CHAR;
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import static io.microsphere.constants.SymbolConstants.RIGHT_SQUARE_BRACKET_CHAR;
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import static javax.lang.model.SourceVersion.latestSupported;
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import static javax.tools.StandardLocation.CLASS_OUTPUT;
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/**
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* The {@link Processor} for the {@link ConfigurationProperty} annotation
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*
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* @author <a href="mailto:mercyblitz@gmail.com">Mercy</a>
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* @see ConfigurationProperty
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* @since 1.0.0
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*/
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@SupportedAnnotationTypes(value = CONFIGURATION_PROPERTY_ANNOTATION_CLASS_NAME)
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public class ConfigurationPropertyAnnotationProcessor extends AbstractProcessor {
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/**
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* The {@link Class class} name of {@link ConfigurationProperty}
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*/
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public static final String CONFIGURATION_PROPERTY_ANNOTATION_CLASS_NAME = "io.microsphere.annotation.ConfigurationProperty";
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/**
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* The resource name of {@link ConfigurationProperty} metadata
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*/
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public static final String CONFIGURATION_PROPERTY_METADATA_RESOURCE_NAME = "META-INF/microsphere/configuration-properties.json";
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private Messager messager;
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private StringBuilder jsonBuilder;
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private ResourceProcessor classPathResourceProcessor;
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@Override
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public synchronized void init(ProcessingEnvironment processingEnv) {
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super.init(processingEnv);
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this.messager = processingEnv.getMessager();
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this.jsonBuilder = new StringBuilder();
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this.classPathResourceProcessor = new ResourceProcessor(processingEnv, CLASS_OUTPUT);
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}
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@Override
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public boolean process(Set<? extends TypeElement> annotations, RoundEnvironment roundEnv) {
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if (roundEnv.processingOver()) {
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writeMetadata();
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} else {
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resolveMetadata(roundEnv);
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}
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return false;
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}
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private void resolveMetadata(RoundEnvironment roundEnv) {
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Set<? extends Element> elements = roundEnv.getRootElements();
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if (!elements.isEmpty()) {
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ConfigurationPropertyJSONElementVisitor visitor = new ConfigurationPropertyJSONElementVisitor(processingEnv);
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Iterator<? extends Element> iterator = elements.iterator();
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jsonBuilder.append(LEFT_SQUARE_BRACKET_CHAR);
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while (iterator.hasNext()) {
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Element element = iterator.next();
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element.accept(visitor, jsonBuilder);
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}
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int lastIndex = jsonBuilder.length() - 1;
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if (COMMA_CHAR == jsonBuilder.charAt(lastIndex)) {
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jsonBuilder.setCharAt(lastIndex, RIGHT_SQUARE_BRACKET_CHAR);
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} else {
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jsonBuilder.append(RIGHT_SQUARE_BRACKET_CHAR);
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}
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}
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}
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private void writeMetadata() {
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classPathResourceProcessor.processInResourceWriter(CONFIGURATION_PROPERTY_METADATA_RESOURCE_NAME, writer -> {
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JSONArray jsonArray = new JSONArray(jsonBuilder.toString());
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String formatedJSON = jsonArray.toString(2);
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writer.write(formatedJSON);
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printNote(this.messager, "The generated metadata JSON of @{} : \n{}", CONFIGURATION_PROPERTY_ANNOTATION_CLASS_NAME, formatedJSON);
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});
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}
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@Override
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public SourceVersion getSupportedSourceVersion() {
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return latestSupported();
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}
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}
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‎microsphere-annotation-processor/src/main/java/io/microsphere/annotation/processor/FilerProcessor.java‎

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/*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership.
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* The ASF licenses this file to You under the Apache License, Version 2.0
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* (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package io.microsphere.annotation.processor;
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import io.microsphere.lang.function.ThrowableFunction;
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import javax.annotation.processing.Filer;
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import javax.annotation.processing.ProcessingEnvironment;
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import javax.tools.JavaFileManager;
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import java.util.function.BiFunction;
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import static io.microsphere.annotation.processor.util.MessagerUtils.printMandatoryWarning;
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import static io.microsphere.reflect.FieldUtils.getFieldValue;
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/**
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* The {@link Filer} Processor
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*
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* @author <a href="mailto:mercyblitz@gmail.com">Mercy</a>
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* @see ProcessingEnvironment
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* @see Filer
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* @since 1.0.0
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*/
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public class FilerProcessor {
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private final ProcessingEnvironment processingEnv;
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public FilerProcessor(ProcessingEnvironment processingEnv) {
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this.processingEnv = processingEnv;
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}
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public <T> T processInFiler(ThrowableFunction<Filer, T> filerCallback) {
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return processInFiler(filerCallback, (filer, e) -> {
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printMandatoryWarning(this.processingEnv, "[FilerProcessor] Failed to process in Filer : {}", filer, e);
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return null;
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});
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}
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public <T> T processInFiler(ThrowableFunction<Filer, T> filerCallback, BiFunction<Filer, Throwable, T> exceptionHandler) {
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Filer filer = processingEnv.getFiler();
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return filerCallback.execute(filer, exceptionHandler);
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}
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/**
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* Get the {@link JavaFileManager}
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*
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* @return the {@link JavaFileManager}
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*/
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public JavaFileManager getJavaFileManager() {
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return processInFiler(filer -> getFieldValue(filer, "fileManager"));
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}
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}

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