package de.plushnikov.intellij.plugin.processor.clazz.log;
import com.intellij.openapi.project.Project;
import com.intellij.openapi.util.text.StringUtil;
import com.intellij.psi.JavaPsiFacade;
import com.intellij.psi.PsiAnnotation;
import com.intellij.psi.PsiClass;
import com.intellij.psi.PsiElement;
import com.intellij.psi.PsiElementFactory;
import com.intellij.psi.PsiExpression;
import com.intellij.psi.PsiField;
import com.intellij.psi.PsiManager;
import com.intellij.psi.PsiModifier;
import com.intellij.psi.PsiType;
import de.plushnikov.intellij.plugin.problem.ProblemBuilder;
import de.plushnikov.intellij.plugin.processor.clazz.AbstractClassProcessor;
import de.plushnikov.intellij.plugin.psi.LombokLightFieldBuilder;
import de.plushnikov.intellij.plugin.util.PsiAnnotationUtil;
import de.plushnikov.intellij.plugin.util.PsiClassUtil;
import org.jetbrains.annotations.NotNull;
import java.lang.annotation.Annotation;
import java.util.Collection;
import java.util.List;
/**
* Base lombok processor class for logger processing
*
* @author Plushnikov Michail
*/
public abstract class AbstractLogProcessor extends AbstractClassProcessor {
private final static String loggerName = "log";
private final String loggerType;
private final String loggerInitializer;
private final String loggerCategory;
protected AbstractLogProcessor(@NotNull Class<? extends Annotation> supportedAnnotationClass, @NotNull String loggerType, @NotNull String loggerInitializer, @NotNull String loggerCategory) {
super(supportedAnnotationClass, PsiField.class);
this.loggerType = loggerType;
this.loggerInitializer = loggerInitializer;
this.loggerCategory = loggerCategory;
}
public static String getLoggerName() {
return loggerName;
}
public String getLoggerType() {
return loggerType;
}
@Override
protected boolean validate(@NotNull PsiAnnotation psiAnnotation, @NotNull PsiClass psiClass, @NotNull ProblemBuilder builder) {
boolean result = true;
if (psiClass.isInterface() || psiClass.isAnnotationType()) {
builder.addError("@Log is legal only on classes and enums");
result = false;
}
if (result && hasFieldByName(psiClass, loggerName)) {
builder.addError("Not generating field %s: A field with same name already exists", loggerName);
result = false;
}
return result;
}
protected void generatePsiElements(@NotNull PsiClass psiClass, @NotNull PsiAnnotation psiAnnotation, @NotNull List<? super PsiElement> target) {
target.add(createLoggerField(psiClass, psiAnnotation));
}
private LombokLightFieldBuilder createLoggerField(@NotNull PsiClass psiClass, @NotNull PsiAnnotation psiAnnotation) {
final Project project = psiClass.getProject();
final PsiManager manager = psiClass.getContainingFile().getManager();
final PsiElementFactory psiElementFactory = JavaPsiFacade.getElementFactory(project);
PsiType psiLoggerType = psiElementFactory.createTypeFromText(loggerType, psiClass);
LombokLightFieldBuilder loggerField = new LombokLightFieldBuilder(manager, loggerName, psiLoggerType)
.withContainingClass(psiClass)
.withModifier(PsiModifier.FINAL).withModifier(PsiModifier.STATIC).withModifier(PsiModifier.PRIVATE)
.withNavigationElement(psiAnnotation);
final String loggerInitializerParameter = createLoggerInitializeParameter(psiClass, psiAnnotation);
final PsiExpression initializer = psiElementFactory.createExpressionFromText(String.format(loggerInitializer, loggerInitializerParameter), psiClass);
loggerField.setInitializer(initializer);
return loggerField;
}
@NotNull
private String createLoggerInitializeParameter(@NotNull PsiClass psiClass, @NotNull PsiAnnotation psiAnnotation) {
final String loggerInitializerParameter;
final String topic = PsiAnnotationUtil.getAnnotationValue(psiAnnotation, "topic", String.class);
if (StringUtil.isEmptyOrSpaces(topic)) {
loggerInitializerParameter = String.format(loggerCategory, psiClass.getName());
} else {
loggerInitializerParameter = '"' + topic + '"';
}
return loggerInitializerParameter;
}
protected boolean hasFieldByName(@NotNull PsiClass psiClass, String... fieldNames) {
final Collection<PsiField> psiFields = PsiClassUtil.collectClassFieldsIntern(psiClass);
for (PsiField psiField : psiFields) {
for (String fieldName : fieldNames) {
if (psiField.getName().equals(fieldName)) {
return true;
}
}
}
return false;
}
}