Examples of org.jwat.gzip.GzipReader

org.jwat.gzip.GzipReader
A reader for (multi-part) GZip files. Validates header and CRC's. Entries are read sequentially from the input stream. Random access is supported indirectly if the used input stream supports this. Compressed data is available through an uncompressing input stream wrapper. @author nicl

        if (offset < -1) {
            throw new IllegalArgumentException(
                    "The 'offset' is less than -1: " + offset);
        }
        currentRecord = null;
        currentReader = new GzipReader(rin);
        currentEntry = currentReader.getNextEntry();
        if (currentEntry != null) {
            ByteCountingPushBackInputStream pbin =
                    new ByteCountingPushBackInputStream(
                            currentEntry.getInputStream(), PUSHBACK_BUFFER_SIZE);

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            throw new IllegalArgumentException(
                    "The 'buffer_size' is less than or equal to zero: "
                    + buffer_size);
        }
        currentRecord = null;
        currentReader = new GzipReader(rin);
        currentEntry = currentReader.getNextEntry();
        if (currentEntry != null) {
            ByteCountingPushBackInputStream pbin =
                    new ByteCountingPushBackInputStream(
                            new BufferedInputStream(

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            @Override
            public void close() throws IOException {
                throw new IOException();
            }
        };
        GzipReader gzipReader = new GzipReader(in) {
            @Override
            public void close() throws IOException {
                throw new IOException();
            }
        };

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            } catch (IllegalArgumentException e) {
                readerCompressed = null;
            }
            Assert.assertNull(readerCompressed);


            GzipReader gzipReader = new GzipReader(new ByteArrayInputStream(new byte[] {42}));


            readerCompressed = new WarcReaderCompressed();
            try {
                readerCompressed = new WarcReaderCompressed(gzipReader, -1);
            } catch (IllegalArgumentException e) {
                readerCompressed = null;
            }
            Assert.assertNull(readerCompressed);


            readerCompressed = new WarcReaderCompressed();
            try {
                readerCompressed = new WarcReaderCompressed(gzipReader, 0);
            } catch (IllegalArgumentException e) {
                readerCompressed = null;
            }
            Assert.assertNull(readerCompressed);


            gzipReader.close();
            gzipReader = null;


            readerCompressed = new WarcReaderCompressed();
            try {
                readerCompressed.getNextRecord();

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            @Override
            public void close() throws IOException {
                throw new IOException();
            }
        };
        GzipReader gzipReader = new GzipReader(in) {
            @Override
            public void close() throws IOException {
                throw new IOException();
            }
        };

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        } catch (IllegalArgumentException e) {
            readerCompressed = null;
        }
        Assert.assertNull(readerCompressed);


        GzipReader gzipReader = new GzipReader(new ByteArrayInputStream(new byte[] {42}));


        readerCompressed = new ArcReaderCompressed();
        try {
            readerCompressed = new ArcReaderCompressed(gzipReader, -1);
        } catch (IllegalArgumentException e) {
            readerCompressed = null;
        }
        Assert.assertNull(readerCompressed);


        readerCompressed = new ArcReaderCompressed();
        try {
            readerCompressed = new ArcReaderCompressed(gzipReader, 0);
        } catch (IllegalArgumentException e) {
            readerCompressed = null;
        }
        Assert.assertNull(readerCompressed);


        gzipReader.close();
        gzipReader = null;


        readerCompressed = new ArcReaderCompressed();
        try {
            readerCompressed.getNextRecord();

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        ByteCountingPushBackInputStream pbin =
                new ByteCountingPushBackInputStream(
                        new BufferedInputStream(in, buffer_size),
                                                PUSHBACK_BUFFER_SIZE);
        if (GzipReader.isGzipped(pbin)) {
            return new ArcReaderCompressed(new GzipReader(pbin),
                                           buffer_size);
        }
        return new ArcReaderUncompressed(pbin);
    }

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                    "The inputstream 'in' is null");
        }
        ByteCountingPushBackInputStream pbin =
                new ByteCountingPushBackInputStream(in, PUSHBACK_BUFFER_SIZE);
        if (GzipReader.isGzipped(pbin)) {
            return new ArcReaderCompressed(new GzipReader(pbin));
        }
        return new ArcReaderUncompressed(pbin);
    }

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                                                        throws IOException {
        if (in == null) {
            throw new IllegalArgumentException(
                    "The inputstream 'in' is null");
        }
        return new ArcReaderCompressed(new GzipReader(in));
    }

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        if (buffer_size <= 0) {
            throw new IllegalArgumentException(
                    "The 'buffer_size' is less than or equal to zero: "
                    + buffer_size);
        }
        return new ArcReaderCompressed(new GzipReader(
                                new BufferedInputStream(in, buffer_size)));
    }

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Related Classes of org.jwat.gzip.GzipReader

org.archive.wayback.resourcestore.jwat.JWATResource

org.jwat.arc.ArcReaderCompressed

org.jwat.arc.ArcReaderFactory

org.jwat.arc.TestArcReaderCompressed

org.jwat.arc.TestArcReaders_Params

org.jwat.common.ByteCountingPushBackInputStream

org.jwat.common.Diagnosis

org.jwat.warc.TestWarcReaderCompressed

org.jwat.warc.TestWarcReaders_Params

org.jwat.warc.WarcReaderCompressed

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