| /* |
| * Copyright 2003-2014 Dave Griffith, Bas Leijdekkers |
| * |
| * 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.bugs; |
| |
| import com.intellij.psi.PsiExpression; |
| import com.intellij.psi.PsiExpressionList; |
| import com.intellij.psi.PsiMethodCallExpression; |
| import com.intellij.psi.PsiReferenceExpression; |
| import com.siyeh.InspectionGadgetsBundle; |
| import com.siyeh.ig.BaseInspection; |
| import com.siyeh.ig.BaseInspectionVisitor; |
| import com.siyeh.ig.psiutils.ExpressionUtils; |
| import com.siyeh.ig.psiutils.TypeUtils; |
| import org.jetbrains.annotations.NonNls; |
| import org.jetbrains.annotations.NotNull; |
| |
| public class ResultSetIndexZeroInspection extends BaseInspection { |
| |
| @Override |
| @NotNull |
| public String getID() { |
| return "UseOfIndexZeroInJDBCResultSet"; |
| } |
| |
| @Override |
| @NotNull |
| public String getDisplayName() { |
| return InspectionGadgetsBundle.message("use.0index.in.jdbc.resultset.display.name"); |
| } |
| |
| @Override |
| @NotNull |
| public String buildErrorString(Object... infos) { |
| if (((Boolean)infos[0]).booleanValue()) { |
| return InspectionGadgetsBundle.message("use.0index.in.jdbc.resultset.problem.descriptor"); |
| } else { |
| return InspectionGadgetsBundle.message("use.0index.in.jdbc.prepared.statement.problem.descriptor"); |
| } |
| } |
| |
| @Override |
| public BaseInspectionVisitor buildVisitor() { |
| return new ResultSetIndexZeroVisitor(); |
| } |
| |
| private static class ResultSetIndexZeroVisitor extends BaseInspectionVisitor { |
| |
| @Override |
| public void visitMethodCallExpression(@NotNull PsiMethodCallExpression expression) { |
| super.visitMethodCallExpression(expression); |
| final PsiReferenceExpression methodExpression = expression.getMethodExpression(); |
| @NonNls final String methodName = methodExpression.getReferenceName(); |
| if (methodName == null) { |
| return; |
| } |
| final boolean resultSet; |
| if (methodName.startsWith("get") || methodName.startsWith("update")) { |
| resultSet = true; |
| } else if (methodName.startsWith("set")) { |
| resultSet = false; |
| } else { |
| return; |
| } |
| final PsiExpressionList argumentList = expression.getArgumentList(); |
| final PsiExpression[] arguments = argumentList.getExpressions(); |
| if (arguments.length == 0) { |
| return; |
| } |
| final PsiExpression argument = arguments[0]; |
| final Object val = ExpressionUtils.computeConstantExpression(argument); |
| if (!(val instanceof Integer) || ((Integer)val).intValue() != 0) { |
| return; |
| } |
| final PsiExpression qualifier = methodExpression.getQualifierExpression(); |
| if (resultSet) { |
| if (TypeUtils.expressionHasTypeOrSubtype(qualifier, "java.sql.ResultSet")) { |
| registerError(argument, Boolean.TRUE); |
| } |
| } else if (arguments.length > 1) { |
| if (TypeUtils.expressionHasTypeOrSubtype(qualifier, "java.sql.PreparedStatement")) { |
| registerError(argument, Boolean.FALSE); |
| } |
| } |
| } |
| } |
| } |