/*
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* Copyright (C) 2010 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package vogar;
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import java.io.File;
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import java.io.IOException;
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import java.util.Map;
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/**
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* Handles finding actions to perform, given files and classes.
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*/
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public final class ActionFinder {
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private final Log log;
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private final Map<String, Action> actions;
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private final Map<String, Outcome> outcomes;
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public ActionFinder(Log log, Map<String, Action> actions, Map<String, Outcome> outcomes) {
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this.log = log;
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this.actions = actions;
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this.outcomes = outcomes;
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}
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public void findActions(File file) {
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findActionsRecursive(file, 0);
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}
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private void findActionsRecursive(File file, int depth) {
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if (file.isDirectory()) {
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int size = actions.size();
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for (File child : file.listFiles()) {
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findActionsRecursive(child, depth + 1);
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}
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if (depth < 3) {
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log.verbose("found " + (actions.size() - size) + " actions in " + file);
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}
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return;
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}
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// Don't try to treat this file as a class unless it resembles a .java file
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if (!matches(file)) {
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return;
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}
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try {
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Action action = fileToAction(file);
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actions.put(action.getName(), action);
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} catch (IllegalArgumentException e) {
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String actionName = Action.nameForJavaFile(file);
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Action action = new Action(actionName, null, null, null, file);
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actions.put(actionName, action);
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outcomes.put(actionName, new Outcome(actionName, Result.UNSUPPORTED, e));
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}
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}
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private boolean matches(File file) {
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return !file.getName().startsWith(".") && file.getName().endsWith(".java");
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}
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/**
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* Returns an action for the given .java file.
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*/
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private Action fileToAction(File javaFile) {
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try {
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DotJavaFile dotJavaFile = DotJavaFile.parse(javaFile);
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File resourcesDir = dotJavaFile.isJtreg() ? javaFile.getParentFile() : null;
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return new Action(dotJavaFile.getActionName(), dotJavaFile.getClassName(), resourcesDir,
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getSourcePath(javaFile, dotJavaFile.getClassName()), javaFile);
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} catch (IOException e) {
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throw new RuntimeException(e);
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}
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}
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/**
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* Returns the source path of {@code file}.
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*/
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private File getSourcePath(File file, String className) {
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String path = file.getPath();
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String relativePath = className.replace('.', File.separatorChar) + ".java";
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if (!path.endsWith(relativePath)) {
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throw new IllegalArgumentException("Expected a file ending in " + relativePath + " but found " + path);
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}
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return new File(path.substring(0, path.length() - relativePath.length()));
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}
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}
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