org.dashbuilder.test.MavenProjectHelper.java Source code

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Here is the source code for org.dashbuilder.test.MavenProjectHelper.java

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/**
 * Copyright (C) 2014 JBoss Inc
 *
 * 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 org.dashbuilder.test;

import java.io.File;
import java.io.FileFilter;
import java.util.ArrayList;
import java.util.Collection;
import java.util.HashSet;
import java.util.List;
import java.util.Set;

import org.apache.commons.io.filefilter.FileFilterUtils;
import org.apache.commons.lang.StringUtils;

public class MavenProjectHelper {

    public static final String JAVA_FOLDER = "java";
    public static final String ROOT_DIR = "dashbuilder";

    public static File getModuleDir(String moduleName) {
        File rootDir = MavenProjectHelper.getRootDir();
        if (rootDir == null)
            throw new NullPointerException("Root directory not found");

        List<File> javaFolders = getFolders(rootDir, FileFilterUtils.nameFileFilter(moduleName));
        if (!javaFolders.isEmpty())
            return javaFolders.get(0);

        throw new RuntimeException("Module " + moduleName + " dir not found. Root=" + rootDir.getPath());
    }

    public static File getRootDir() {
        File rootDir = new File(System.getProperty("user.dir"));
        while (rootDir != null && !ROOT_DIR.equals(rootDir.getName())) {
            rootDir = rootDir.getParentFile();
        }
        return rootDir;
    }

    public static Collection<String> getJavaPackages(File root) {
        Set<String> result = new HashSet<String>();
        List<File> folders = getSourceFolders(root);
        for (File folder : folders) {
            String fullPath = folder.getAbsolutePath();
            int index = fullPath.indexOf("/" + JAVA_FOLDER + "/");
            if (index == -1)
                continue;

            String javaPath = fullPath.substring(index + 6);
            String javaPackage = StringUtils.replace(javaPath, "/", ".");
            result.add(javaPackage);
        }
        return result;
    }

    public static List<File> getSourceFolders(File root) {
        List<File> javaFolders = getFolders(root, FileFilterUtils.nameFileFilter(JAVA_FOLDER));
        List<File> result = new ArrayList<File>();
        for (File javaFolder : javaFolders) {
            List<File> _folders = getFolders(javaFolder, null);
            result.add(javaFolder);
            result.addAll(_folders);
        }
        return result;
    }

    public static List<File> getFolders(File root, FileFilter filter) {
        List<File> result = new ArrayList<File>();
        if (root == null || !root.isDirectory())
            return result;

        File[] files = root.listFiles();
        for (File file : files) {
            if (file.isDirectory()) {
                if (filter == null || filter.accept(file))
                    result.add(file);
                result.addAll(getFolders(file, filter));
            }
        }
        return result;
    }
}