1 files changed, 152 insertions, 0 deletions
diff --git a/plugins/InspectionGadgets/InspectionGadgetsAnalysis/src/com/siyeh/ig/javadoc/MissingPackageInfoInspectionBase.java b/plugins/InspectionGadgets/InspectionGadgetsAnalysis/src/com/siyeh/ig/javadoc/MissingPackageInfoInspectionBase.java
new file mode 100644
index 000000000000..dcd737d983fd
--- /dev/null
+++ b/plugins/InspectionGadgets/InspectionGadgetsAnalysis/src/com/siyeh/ig/javadoc/MissingPackageInfoInspectionBase.java
@@ -0,0 +1,152 @@
+/*
+ * Copyright 2000-2014 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.javadoc;
+
+import com.intellij.analysis.AnalysisScope;
+import com.intellij.codeInspection.CommonProblemDescriptor;
+import com.intellij.codeInspection.GlobalInspectionContext;
+import com.intellij.codeInspection.InspectionManager;
+import com.intellij.codeInspection.LocalInspectionTool;
+import com.intellij.codeInspection.reference.RefClass;
+import com.intellij.codeInspection.reference.RefEntity;
+import com.intellij.codeInspection.reference.RefPackage;
+import com.intellij.openapi.project.Project;
+import com.intellij.psi.*;
+import com.intellij.psi.util.PsiUtil;
+import com.siyeh.InspectionGadgetsBundle;
+import com.siyeh.ig.BaseGlobalInspection;
+import com.siyeh.ig.BaseInspectionVisitor;
+import com.siyeh.ig.BaseSharedLocalInspection;
+import org.jetbrains.annotations.Contract;
+import org.jetbrains.annotations.Nls;
+import org.jetbrains.annotations.NotNull;
+import org.jetbrains.annotations.Nullable;
+
+import java.util.List;
+
+/**
+ * @author Bas Leijdekkers
+ */
+public class MissingPackageInfoInspectionBase extends BaseGlobalInspection {
+
+  @Nls
+  @NotNull
+  @Override
+  public String getDisplayName() {
+    return InspectionGadgetsBundle.message("missing.package.info.display.name");
+  }
+
+  @Nullable
+  @Override
+  public CommonProblemDescriptor[] checkElement(@NotNull RefEntity refEntity,
+                                                @NotNull AnalysisScope scope,
+                                                @NotNull InspectionManager manager,
+                                                @NotNull GlobalInspectionContext globalContext) {
+    if (!(refEntity instanceof RefPackage)) {
+      return null;
+    }
+    final RefPackage refPackage = (RefPackage)refEntity;
+    final String packageName = refPackage.getQualifiedName();
+    final Project project = globalContext.getProject();
+    final PsiPackage aPackage = JavaPsiFacade.getInstance(project).findPackage(packageName);
+    if (hasPackageInfoFile(aPackage)) {
+      return null;
+    }
+    final List<RefEntity> children = refPackage.getChildren();
+    boolean hasClasses = false;
+    for (RefEntity child : children) {
+      if (child instanceof RefClass) {
+        hasClasses = true;
+        break;
+      }
+    }
+    if (!hasClasses) {
+      return null;
+    }
+    if (PsiUtil.isLanguageLevel5OrHigher(aPackage)) {
+      return new CommonProblemDescriptor[] {
+        manager.createProblemDescriptor(InspectionGadgetsBundle.message("missing.package.info.problem.descriptor", packageName))};
+    }
+    else {
+      return new CommonProblemDescriptor[] {
+        manager.createProblemDescriptor(InspectionGadgetsBundle.message("missing.package.html.problem.descriptor", packageName))};
+    }
+  }
+
+  @Contract("null -> true")
+  static boolean hasPackageInfoFile(PsiPackage aPackage) {
+    if (aPackage == null) {
+      return true;
+    }
+    final PsiDirectory[] directories = aPackage.getDirectories();
+    for (PsiDirectory directory : directories) {
+      final boolean packageInfoFound = directory.findFile(PsiPackage.PACKAGE_INFO_FILE) != null;
+      final boolean packageDotHtmlFound = directory.findFile("package.html") != null;
+      if (packageInfoFound || packageDotHtmlFound) {
+        return true;
+      }
+    }
+    return false;
+  }
+
+  @Nullable
+  @Override
+  public LocalInspectionTool getSharedLocalInspectionTool() {
+    return new LocalMissingPackageInfoInspectionBase(this);
+  }
+
+  protected static class LocalMissingPackageInfoInspectionBase extends BaseSharedLocalInspection<MissingPackageInfoInspectionBase> {
+
+    public LocalMissingPackageInfoInspectionBase(MissingPackageInfoInspectionBase settingsDelegate) {
+      super(settingsDelegate);
+    }
+
+    @NotNull
+    @Override
+    protected String buildErrorString(Object... infos) {
+      final PsiPackageStatement packageStatement = (PsiPackageStatement)infos[0];
+      if (PsiUtil.isLanguageLevel5OrHigher(packageStatement)) {
+        return InspectionGadgetsBundle.message("missing.package.info.problem.descriptor", packageStatement.getPackageName());
+      }
+      else {
+        return InspectionGadgetsBundle.message("missing.package.html.problem.descriptor", packageStatement.getPackageName());
+      }
+    }
+
+    @Override
+    public BaseInspectionVisitor buildVisitor() {
+      return new BaseInspectionVisitor() {
+        @Override
+        public void visitJavaFile(PsiJavaFile file) {
+          final PsiPackageStatement packageStatement = file.getPackageStatement();
+          if (packageStatement == null) {
+            return;
+          }
+          final PsiJavaCodeReferenceElement packageReference = packageStatement.getPackageReference();
+          final PsiElement target = packageReference.resolve();
+          if (!(target instanceof PsiPackage)) {
+            return;
+          }
+          final PsiPackage aPackage = (PsiPackage)target;
+          if (hasPackageInfoFile(aPackage)) {
+            return;
+          }
+          registerError(packageReference, packageStatement);
+        }
+      };
+    }
+  }
+}