org.eclipse.thym.hybrid.test.TestUtils.java Source code

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Here is the source code for org.eclipse.thym.hybrid.test.TestUtils.java

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/*******************************************************************************
 * Copyright (c) 2013, 2014 Red Hat, Inc. 
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 *    Contributors:
 *        Red Hat Inc. - initial API and implementation and/or initial documentation
 *******************************************************************************/
package org.eclipse.thym.hybrid.test;

import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.nio.channels.Channels;
import java.nio.channels.FileChannel;

import org.eclipse.thym.core.internal.util.FileUtils;

public class TestUtils {

    public static final String FILE_PLAIN = "plain.file";
    private static File temp;

    public static File createTempFile(String fileName) throws IOException, FileNotFoundException {
        File f = new File(getTempDirectory(), fileName);
        f.createNewFile();
        f.deleteOnExit();
        FileOutputStream fout = null;
        FileChannel out = null;
        InputStream in = TestUtils.class.getResourceAsStream("/" + fileName);
        try {
            fout = new FileOutputStream(f);
            out = fout.getChannel();

            out.transferFrom(Channels.newChannel(in), 0, Integer.MAX_VALUE);
            return f;
        } finally {
            if (out != null)
                out.close();
            if (in != null)
                in.close();
            if (fout != null)
                fout.close();
        }
    }

    public static File getTempDirectory() {
        if (temp == null) {
            String tsamp = Long.toHexString(System.currentTimeMillis());
            File tempDir = new File(System.getProperty("java.io.tmpdir"));
            temp = new File(tempDir, tsamp);
            temp.mkdirs();
            try {
                org.apache.commons.io.FileUtils.forceDeleteOnExit(temp);
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
        return temp;
    }

}