| /* |
| * Copyright 2016 The Bazel Authors. All rights reserved. |
| * |
| * 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.google.idea.blaze.base.ui; |
| |
| import com.intellij.openapi.project.Project; |
| import com.intellij.openapi.ui.Messages; |
| import java.util.Collection; |
| import javax.annotation.concurrent.Immutable; |
| import org.jetbrains.annotations.NotNull; |
| import org.jetbrains.annotations.Nullable; |
| |
| /** An error occuring during a blaze validation */ |
| @Immutable |
| public final class BlazeValidationError { |
| |
| @NotNull private final String error; |
| |
| public BlazeValidationError(@NotNull String validationFailure) { |
| this.error = validationFailure; |
| } |
| |
| @NotNull |
| public String getError() { |
| return error; |
| } |
| |
| public static void collect( |
| @Nullable Collection<BlazeValidationError> errors, @NotNull BlazeValidationError error) { |
| if (errors != null) { |
| errors.add(error); |
| } |
| } |
| |
| public static void throwError(@NotNull Collection<BlazeValidationError> errors) |
| throws IllegalArgumentException { |
| BlazeValidationError error = !errors.isEmpty() ? errors.iterator().next() : null; |
| String errorMessage = error != null ? error.getError() : "Unknown validation error"; |
| throw new IllegalArgumentException(errorMessage); |
| } |
| |
| /** |
| * Shows an error dialog. |
| * |
| * @return true if there are no errors |
| */ |
| public static boolean verify( |
| @NotNull Project project, |
| @NotNull String title, |
| @NotNull Collection<BlazeValidationError> errors) { |
| if (!errors.isEmpty()) { |
| BlazeValidationError error = errors.iterator().next(); |
| Messages.showErrorDialog(project, error.getError(), title); |
| return false; |
| } |
| return true; |
| } |
| } |