wagon-provider-test/src/main/java/org/apache/maven/wagon/FileTestUtils.java

/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you 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.apache.maven.wagon;

import java.io.File;
import java.io.FileWriter;
import java.io.IOException;
import java.io.Writer;

import org.codehaus.plexus.util.FileUtils;

/**
 * @author <a href="michal@apache.org>Michal Maczka</a>
 *
 */
public class FileTestUtils {

    public static File createUniqueFile(final String dirname, final String name) throws IOException {

        final File dir = createDir(dirname);

        final File retValue = new File(dir, name);

        return retValue;
    }

    public static File createUniqueDir(final String name) throws IOException {

        String filename = name + System.currentTimeMillis();

        return createDir(filename);
    }

    public static File createDir(final String name) throws IOException {

        final File baseDirectory = getTestOutputDir();

        final File retValue = new File(baseDirectory, name);

        if (retValue.exists()) {
            FileUtils.cleanDirectory(retValue);
            return retValue;
        }

        retValue.mkdirs();

        if (!retValue.exists()) {
            throw new IOException("Unable to create the directory for testdata " + retValue.getPath());
        }

        return retValue;
    }

    public static File getTestOutputDir() {
        final String tempDir = System.getProperty("java.io.tmpdir");

        final String baseDir = System.getProperty("basedir", tempDir);

        final File base = new File(baseDir).getAbsoluteFile();

        final String pathname = base + File.separator + "target" + File.separator + "test-output";

        final File retValue = new File(pathname);

        retValue.mkdirs();

        return retValue;
    }

    public static File generateFile(String file, String content) throws IOException {
        File f = new File(file);

        f.getParentFile().mkdirs();

        Writer writer = new FileWriter(f);

        try {
            writer.write(content);
        } finally {
            writer.close();
        }

        return f;
    }
}