| /* |
| * Copyright (C) 2010 The Android Open Source Project |
| * |
| * 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 vogar; |
| |
| import java.io.File; |
| import java.io.IOException; |
| import java.util.regex.Matcher; |
| import java.util.regex.Pattern; |
| import vogar.util.Strings; |
| |
| /** |
| * A {@code .java} file for execution as an action. |
| */ |
| public final class DotJavaFile { |
| private static final Pattern PACKAGE_PATTERN = Pattern.compile( |
| "(?m)^\\s*package\\s+(\\S+)\\s*;"); |
| private static final Pattern TYPE_DECLARATION_PATTERN = Pattern.compile( |
| "(?m)\\b(?:public|private\\s+)?(?:final\\s+)?(?:interface|class|enum)\\b"); |
| private static final Pattern AT_TEST_PATTERN = Pattern.compile("\\W@test\\W"); |
| |
| private final String simpleName; |
| private final String packageName; |
| private final String actionName; |
| private final boolean isJtreg; |
| |
| private DotJavaFile(String simpleName, String packageName, String actionName, boolean isJtreg) { |
| this.simpleName = simpleName; |
| this.packageName = packageName; |
| this.actionName = actionName; |
| this.isJtreg = isJtreg; |
| } |
| |
| public String getActionName() { |
| return actionName; |
| } |
| |
| /** |
| * Returns true if this file looks like a jtreg test. Jtreg tests usually |
| * require additional target setup; in particular they expect to be |
| * able to load files from their working directory. |
| */ |
| public boolean isJtreg() { |
| return isJtreg; |
| } |
| |
| public String getClassName() { |
| return packageName != null ? packageName + "." + simpleName : simpleName; |
| } |
| |
| public static DotJavaFile parse(File javaFile) throws IOException { |
| // We can get the unqualified class name from the path. |
| // It's the last element minus the trailing ".java". |
| String filename = javaFile.getName(); |
| String simpleName = filename.substring(0, filename.length() - ".java".length()); |
| |
| // For the package, the only foolproof way is to look for the package |
| // declaration inside the file. |
| String content = Strings.readFile(javaFile); |
| boolean isjtreg = AT_TEST_PATTERN.matcher(content).find(); |
| |
| String packageName; |
| String actionName; |
| Matcher packageMatcher = PACKAGE_PATTERN.matcher(content); |
| if (packageMatcher.find()) { |
| packageName = packageMatcher.group(1); |
| actionName = packageName + "." + simpleName; |
| } else { |
| packageName = null; |
| actionName = Action.nameForJavaFile(javaFile); |
| } |
| |
| if (!TYPE_DECLARATION_PATTERN.matcher(content).find()) { |
| throw new IllegalArgumentException("Malformed .java file: " + javaFile); |
| } |
| |
| return new DotJavaFile(simpleName, packageName, actionName, isjtreg); |
| } |
| } |