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/*
* Copyright 2000-2013 JetBrains s.r.o.
*
* 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 com.siyeh.ig.errorhandling;
import com.intellij.openapi.util.text.StringUtil;
import com.intellij.psi.PsiExpression;
import com.intellij.psi.PsiThrowStatement;
import com.intellij.psi.PsiType;
import com.siyeh.InspectionGadgetsBundle;
import com.siyeh.ig.BaseInspection;
import com.siyeh.ig.BaseInspectionVisitor;
import com.siyeh.ig.ui.ExternalizableStringSet;
import org.jetbrains.annotations.NotNull;
import java.util.List;
public class BadExceptionThrownInspectionBase extends BaseInspection {
@SuppressWarnings("PublicField")
public final ExternalizableStringSet exceptions =
new ExternalizableStringSet(
"java.lang.Throwable",
"java.lang.Exception",
"java.lang.Error",
"java.lang.RuntimeException",
"java.lang.NullPointerException",
"java.lang.ClassCastException",
"java.lang.ArrayIndexOutOfBoundsException"
);
/**
* @noinspection PublicField
*/
public String exceptionsString = "";
public BadExceptionThrownInspectionBase() {
if (!exceptionsString.isEmpty()) {
exceptions.clear();
final List<String> strings =
StringUtil.split(exceptionsString, ",");
for (String string : strings) {
exceptions.add(string);
}
exceptionsString = "";
}
}
@Override
@NotNull
public String getID() {
return "ProhibitedExceptionThrown";
}
@Override
@NotNull
public String getDisplayName() {
return InspectionGadgetsBundle.message(
"bad.exception.thrown.display.name");
}
@Override
@NotNull
public String buildErrorString(Object... infos) {
final PsiType type = (PsiType)infos[0];
final String exceptionName = type.getPresentableText();
return InspectionGadgetsBundle.message(
"bad.exception.thrown.problem.descriptor", exceptionName);
}
@Override
public BaseInspectionVisitor buildVisitor() {
return new BadExceptionThrownVisitor();
}
private class BadExceptionThrownVisitor extends BaseInspectionVisitor {
@Override
public void visitThrowStatement(PsiThrowStatement statement) {
super.visitThrowStatement(statement);
final PsiExpression exception = statement.getException();
if (exception == null) {
return;
}
final PsiType type = exception.getType();
if (type == null) {
return;
}
final String text = type.getCanonicalText();
if (exceptions.contains(text)) {
registerStatementError(statement, type);
}
}
}
}
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