Examples of org.apache.commons.compress.archivers.ArchiveInputStream

Package org.apache.commons.compress.archivers

Examples of org.apache.commons.compress.archivers.ArchiveInputStream

org.apache.commons.compress.archivers.ArchiveInputStream
Archive input streams MUST override the {@link #read(byte[],int,int)} - or {@link #read()} -method so that reading from the stream generates EOF for the end of data in each entry as well as at the end of the file proper.
The {@link #getNextEntry()} method is used to reset the input streamready for reading the data from the next entry.
The input stream classes must also implement a method with the signature:
```
 public static boolean matches(byte[] signature, int length) 
```
which is used by the {@link ArchiveStreamFactory} to autodetectthe archive type from the first few bytes of a stream.

            // expected
        }
    }


    public void testCOMPRESS117() throws Exception {
        final ArchiveInputStream tar = getStreamFor("COMPRESS-117.tar");
        assertNotNull(tar);
        assertTrue(tar instanceof TarArchiveInputStream);
    }

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        assertTrue(tar instanceof TarArchiveInputStream);
    }


    public void testDetection() throws Exception {


        final ArchiveInputStream ar = getStreamFor("bla.ar"); 
        assertNotNull(ar);
        assertTrue(ar instanceof ArArchiveInputStream);


        final ArchiveInputStream tar = getStreamFor("bla.tar");
        assertNotNull(tar);
        assertTrue(tar instanceof TarArchiveInputStream);


        final ArchiveInputStream zip = getStreamFor("bla.zip");
        assertNotNull(zip);
        assertTrue(zip instanceof ZipArchiveInputStream);


        final ArchiveInputStream jar = getStreamFor("bla.jar");
        assertNotNull(jar);
        assertTrue(jar instanceof ZipArchiveInputStream);


        final ArchiveInputStream cpio = getStreamFor("bla.cpio");
        assertNotNull(cpio);
        assertTrue(cpio instanceof CpioArchiveInputStream);


// Not yet implemented
//        final ArchiveInputStream tgz = getStreamFor("bla.tgz");

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    }


    private void checkEmptyArchive(String type) throws Exception{
        File ar = createEmptyArchive(type); // will be deleted by tearDown()
        ar.deleteOnExit(); // Just in case file cannot be deleted
        ArchiveInputStream ais = null;
        BufferedInputStream in = null;
        try {
            in = new BufferedInputStream(new FileInputStream(ar));
            ais = factory.createArchiveInputStream(in);
        } catch (ArchiveException ae) {
            fail("Should have recognised empty archive for "+type);
        } finally {
            if (ais != null) {
                ais.close(); // will close input as well
            } else if (in != null){
                in.close();
            }
        }
    }

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    public void testDeleteFile2() throws Exception {
        final String archivename = "cpio";
        File input = this.createArchive(archivename);


        ArchiveOutputStream out = null;
        ArchiveInputStream ais = null;
        File result = File.createTempFile("test", "."+archivename);
        result.deleteOnExit();
        try {


            final InputStream is = new FileInputStream(input);
            ais = factory.createArchiveInputStream(archivename, is);


            out = factory.createArchiveOutputStream(archivename,
                    new FileOutputStream(result));


            ChangeSet changes = new ChangeSet();
            changes.delete("bla");
            //archiveListDelete("bla");


            ChangeSetPerformer performer = new ChangeSetPerformer(changes);
            performer.perform(ais, out);
            is.close();


        } finally {
            if (out != null) {
                out.close();
            }
            if (ais != null) {
                ais.close();
            }
        }


        this.checkArchiveContent(result, archiveList);
    }

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    public void testDeletePlusAddSame() throws Exception {
        final String archivename = "zip";
        File input = this.createArchive(archivename);


        ArchiveOutputStream out = null;
        ArchiveInputStream ais = null;
        File result = File.createTempFile("test", "."+archivename);
        result.deleteOnExit();


        File testtxt = null;
        try {


            final InputStream is = new FileInputStream(input);
            ais = factory.createArchiveInputStream(archivename, is);
            out = factory.createArchiveOutputStream(archivename,
                    new FileOutputStream(result));


            ChangeSet changes = new ChangeSet();
            changes.delete("test/test3.xml");
            archiveListDelete("test/test3.xml");


            // Add a file
            testtxt = getFile("test.txt");
            ArchiveEntry entry = out.createArchiveEntry(testtxt, "test/test3.xml");
            changes.add(entry, new FileInputStream(testtxt));
            archiveList.add("test/test3.xml");


            ChangeSetPerformer performer = new ChangeSetPerformer(changes);
            performer.perform(ais, out);
            is.close();


        } finally {
            if (out != null) {
                out.close();
            }
            if (ais != null) {
                ais.close();
            }
        }


        // Checks
        ArchiveInputStream in = null;
        File check = null;
        try {
            final InputStream is = new FileInputStream(result);
            final BufferedInputStream buf = new BufferedInputStream(is);
            in = factory.createArchiveInputStream(buf);
            check = this.checkArchiveContent(in, archiveList, false);
            File test3xml = new File(check,"result/test/test3.xml");
            assertEquals(testtxt.length(), test3xml.length());


            BufferedReader reader = new BufferedReader(new FileReader(test3xml));
            String str;
            while ((str = reader.readLine()) != null) {
                // All lines look like this
                "111111111111111111111111111000101011".equals(str);
            }
            reader.close();
        } finally {
            if (in != null) {
                in.close();
            }
            rmdir(check);
        } 
    }

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    public void testChangeSetResults() throws Exception {
        final String archivename = "cpio";
        File input = this.createArchive(archivename);


        ArchiveOutputStream out = null;
        ArchiveInputStream ais = null;
        File result = File.createTempFile("test", "."+archivename);
        result.deleteOnExit();
        try {


            final InputStream is = new FileInputStream(input);
            ais = factory.createArchiveInputStream(archivename, is);
            out = factory.createArchiveOutputStream(archivename,
                    new FileOutputStream(result));


            ChangeSet changes = new ChangeSet();
            changes.deleteDir("bla");
            archiveListDeleteDir("bla");


            // Add a file
            final File file1 = getFile("test.txt");
            ArchiveEntry entry = out.createArchiveEntry(file1, "bla/test.txt");
            changes.add(entry, new FileInputStream(file1));
            archiveList.add("bla/test.txt");


            ChangeSetPerformer performer = new ChangeSetPerformer(changes);
            ChangeSetResults results = performer.perform(ais, out);
            is.close();


            // Checks
            assertEquals(1,results.getAddedFromChangeSet().size());
            assertEquals("bla/test.txt",results.getAddedFromChangeSet().iterator().next());
            assertEquals(3,results.getDeleted().size());
            assertTrue(results.getDeleted().contains("bla/test4.xml"));
            assertTrue(results.getDeleted().contains("bla/test5.xml"));
            assertTrue(results.getDeleted().contains("bla/blubber/test6.xml"));


            assertTrue(results.getAddedFromStream().contains("testdata/test1.xml"));
            assertTrue(results.getAddedFromStream().contains("testdata/test2.xml"));
            assertTrue(results.getAddedFromStream().contains("test/test3.xml"));
            assertTrue(results.getAddedFromStream().contains("test.txt"));
            assertTrue(results.getAddedFromStream().contains("something/bla"));
            assertTrue(results.getAddedFromStream().contains("test with spaces.txt"));
            assertEquals(6,results.getAddedFromStream().size());
        } finally {
            if (out != null) {
                out.close();
            }
            if (ais != null) {
                ais.close();
            }
        }


        this.checkArchiveContent(result, archiveList);
    }

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    public void testDeletePlusAdd() throws Exception {
        final String archivename = "cpio";
        File input = this.createArchive(archivename);


        ArchiveOutputStream out = null;
        ArchiveInputStream ais = null;
        File result = File.createTempFile("test", "."+archivename);
        result.deleteOnExit();
        try {


            final InputStream is = new FileInputStream(input);
            ais = factory.createArchiveInputStream(archivename, is);
            out = factory.createArchiveOutputStream(archivename,
                    new FileOutputStream(result));


            ChangeSet changes = new ChangeSet();
            changes.deleteDir("bla");
            archiveListDeleteDir("bla");


            // Add a file
            final File file1 = getFile("test.txt");
            ArchiveEntry entry = out.createArchiveEntry(file1, "bla/test.txt");
            changes.add(entry, new FileInputStream(file1));
            archiveList.add("bla/test.txt");


            ChangeSetPerformer performer = new ChangeSetPerformer(changes);
            performer.perform(ais, out);
            is.close();


        } finally {
            if (out != null) {
                out.close();
            }
            if (ais != null) {
                ais.close();
            }
        }


        this.checkArchiveContent(result, archiveList);
    }

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    public void testDeleteFromAndAddToZip() throws Exception {
        final String archivename = "zip";
        File input = this.createArchive(archivename);


        ArchiveOutputStream out = null;
        ArchiveInputStream ais = null;
        File result = File.createTempFile("test", "."+archivename);
        result.deleteOnExit();
        try {


            final InputStream is = new FileInputStream(input);
            ais = factory.createArchiveInputStream(archivename, is);
            out = factory.createArchiveOutputStream(archivename,
                    new FileOutputStream(result));


            ChangeSet changes = new ChangeSet();


            final File file1 = getFile("test.txt");
            ArchiveEntry entry = new ZipArchiveEntry("blub/test.txt");
            changes.add(entry, new FileInputStream(file1));
            archiveList.add("blub/test.txt");


            changes.delete("testdata/test1.xml");
            archiveListDelete("testdata/test1.xml");


            ChangeSetPerformer performer = new ChangeSetPerformer(changes);
            performer.perform(ais, out);
            is.close();


        } finally {
            if (out != null) {
                out.close();
            }
            if (ais != null) {
                ais.close();
            }
        }


        this.checkArchiveContent(result, archiveList);
    }

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    public void testAddDeleteAdd() throws Exception {
        final String archivename = "cpio";
        File input = this.createArchive(archivename);


        ArchiveOutputStream out = null;
        ArchiveInputStream ais = null;
        File result = File.createTempFile("test", "."+archivename);
        result.deleteOnExit();
        try {


            final InputStream is = new FileInputStream(input);
            ais = factory.createArchiveInputStream(archivename, is);
            out = factory.createArchiveOutputStream(archivename,
                    new FileOutputStream(result));


            ChangeSet changes = new ChangeSet();


            final File file1 = getFile("test.txt");
            ArchiveEntry entry = new CpioArchiveEntry("blub/test.txt");
            changes.add(entry, new FileInputStream(file1));
            archiveList.add("blub/test.txt");


            changes.deleteDir("blub");
            archiveListDeleteDir("blub");


            ChangeSetPerformer performer = new ChangeSetPerformer(changes);
            performer.perform(ais, out);


            is.close();


        } finally {
            if (out != null) {
                out.close();
            }
            if (ais != null) {
                ais.close();
            }
        }


        this.checkArchiveContent(result, archiveList);
    }

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    public void testDeleteAddDelete() throws Exception {
        final String archivename = "cpio";
        File input = this.createArchive(archivename);


        ArchiveOutputStream out = null;
        ArchiveInputStream ais = null;
        File result = File.createTempFile("test", "."+archivename);
        result.deleteOnExit();
        try {


            final InputStream is = new FileInputStream(input);
            ais = factory.createArchiveInputStream(archivename, is);
            out = factory.createArchiveOutputStream(archivename,
                    new FileOutputStream(result));


            ChangeSet changes = new ChangeSet();


            changes.deleteDir("bla");


            final File file1 = getFile("test.txt");
            ArchiveEntry entry = new CpioArchiveEntry("bla/test.txt");
            changes.add(entry, new FileInputStream(file1));
            archiveList.add("bla/test.txt");


            changes.deleteDir("bla");
            archiveListDeleteDir("bla");


            ChangeSetPerformer performer = new ChangeSetPerformer(changes);
            performer.perform(ais, out);


            is.close();


        } finally {
            if (out != null) {
                out.close();
            }
            if (ais != null) {
                ais.close();
            }
        }


        this.checkArchiveContent(result, archiveList);
    }

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