File: JarTestCase.java

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/*
 * 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.commons.compress.archivers;

import java.io.File;
import java.io.InputStream;
import java.io.OutputStream;
import java.nio.file.Files;

import org.apache.commons.compress.AbstractTestCase;
import org.apache.commons.compress.archivers.zip.ZipArchiveEntry;
import org.apache.commons.compress.utils.IOUtils;
import org.junit.jupiter.api.Test;

public final class JarTestCase extends AbstractTestCase {

    @Test
    public void testJarArchiveCreation() throws Exception {
        final File output = new File(dir, "bla.jar");

        final File file1 = getFile("test1.xml");
        final File file2 = getFile("test2.xml");

        final OutputStream out = Files.newOutputStream(output.toPath());

        final ArchiveOutputStream os = ArchiveStreamFactory.DEFAULT.createArchiveOutputStream("jar", out);

        os.putArchiveEntry(new ZipArchiveEntry("testdata/test1.xml"));
        IOUtils.copy(Files.newInputStream(file1.toPath()), os);
        os.closeArchiveEntry();

        os.putArchiveEntry(new ZipArchiveEntry("testdata/test2.xml"));
        IOUtils.copy(Files.newInputStream(file2.toPath()), os);
        os.closeArchiveEntry();

        os.close();
    }


    @Test
    public void testJarUnarchive() throws Exception {
        final File input = getFile("bla.jar");
        final InputStream is = Files.newInputStream(input.toPath());
        final ArchiveInputStream in = ArchiveStreamFactory.DEFAULT.createArchiveInputStream("jar", is);

        ZipArchiveEntry entry = (ZipArchiveEntry)in.getNextEntry();
        File o = new File(dir, entry.getName());
        o.getParentFile().mkdirs();
        OutputStream out = Files.newOutputStream(o.toPath());
        IOUtils.copy(in, out);
        out.close();

        entry = (ZipArchiveEntry)in.getNextEntry();
        o = new File(dir, entry.getName());
        o.getParentFile().mkdirs();
        out = Files.newOutputStream(o.toPath());
        IOUtils.copy(in, out);
        out.close();

        entry = (ZipArchiveEntry)in.getNextEntry();
        o = new File(dir, entry.getName());
        o.getParentFile().mkdirs();
        out = Files.newOutputStream(o.toPath());
        IOUtils.copy(in, out);
        out.close();

        in.close();
        is.close();
    }

    @Test
    public void testJarUnarchiveAll() throws Exception {
        final File input = getFile("bla.jar");
        final InputStream is = Files.newInputStream(input.toPath());
        final ArchiveInputStream in = ArchiveStreamFactory.DEFAULT.createArchiveInputStream("jar", is);

        ArchiveEntry entry = in.getNextEntry();
        while (entry != null) {
            final File archiveEntry = new File(dir, entry.getName());
            archiveEntry.getParentFile().mkdirs();
            if(entry.isDirectory()){
                archiveEntry.mkdir();
                entry = in.getNextEntry();
                continue;
            }
            final OutputStream out = Files.newOutputStream(archiveEntry.toPath());
            IOUtils.copy(in, out);
            out.close();
            entry = in.getNextEntry();
        }

        in.close();
        is.close();
    }

}