Examples with MarkShieldInputStream org.apache.commons.io.input.MarkShieldInputStream used on opensource projects

Example 1 with MarkShieldInputStream

use of org.apache.commons.io.input.MarkShieldInputStream in project exist by eXist-db.

the class CachingFilterInputStreamTest_NonMarkableByteArrayInputStream method interleavedSourceReads.

/**
 * When given an underlying InputSource and caching it twice with the same
 * cache we should be able to read the input twice assuming that the input
 * that we are interested in has not been read before a mark()
 */
@Test
public void interleavedSourceReads() throws IOException, InstantiationException, IllegalAccessException, NoSuchMethodException, IllegalArgumentException, InvocationTargetException {
    final byte[] testData = generateRandomData(_64KB);
    final InputStream is = new MarkShieldInputStream(new UnsynchronizedByteArrayInputStream(testData));
    final FilterInputStreamCache cache1 = getNewCache(is);
    final CachingFilterInputStream cfis1 = new CachingFilterInputStream(cache1);
    cfis1.mark(Integer.MAX_VALUE);
    final CachingFilterInputStream cfis2 = new CachingFilterInputStream(cache1);
    final byte[] result1 = new byte[_12KB];
    cfis1.read(result1);
    assertArrayEquals(subArray(testData, _12KB), result1);
    final byte[] result2 = new byte[_12KB];
    cfis2.read(result2);
    assertArrayEquals(subArray(testData, _12KB), result2);
}

Example 2 with MarkShieldInputStream

use of org.apache.commons.io.input.MarkShieldInputStream in project exist by eXist-db.

the class CachingFilterInputStreamTest_NonMarkableByteArrayInputStream method sharedCacheWritesInOrder.

@Test
public void sharedCacheWritesInOrder() throws IOException, InstantiationException, IllegalAccessException, NoSuchMethodException, IllegalArgumentException, InvocationTargetException {
    final byte[] testData = generateRandomData(_64KB);
    final InputStream is = new MarkShieldInputStream(new UnsynchronizedByteArrayInputStream(testData));
    // first CachingFilterInputStream
    final CachingFilterInputStream cfis1 = new CachingFilterInputStream(getNewCache(is));
    // read first 6KB
    final byte[] cfis1Part1 = new byte[_6KB];
    cfis1.read(cfis1Part1);
    // ensure first 6KB was read!
    assertArrayEquals(subArray(testData, _6KB), cfis1Part1);
    // second CachingFilterInputStream wraps first CachingFilterInputStream
    final CachingFilterInputStream cfis2 = new CachingFilterInputStream(cfis1);
    // read first 32KB from second InputStream
    final byte[] cfis2Part1 = new byte[_32KB];
    cfis2.read(cfis2Part1);
    // ensure next 32KB was read!
    assertArrayEquals(subArray(testData, _32KB), cfis2Part1);
    // interleave by reading another 6KB from first InputStream
    final byte[] cfis1Part2 = new byte[_6KB];
    cfis1.read(cfis1Part2);
    // ensure first 6KB was read!
    assertArrayEquals(subArray(testData, _6KB, _6KB), cfis1Part2);
}

Example 3 with MarkShieldInputStream

use of org.apache.commons.io.input.MarkShieldInputStream in project exist by eXist-db.

the class CachingFilterInputStreamTest_NonMarkableByteArrayInputStream method constructed_from_CachingFilterInputStream_consumed.

@Test
public void constructed_from_CachingFilterInputStream_consumed() throws IOException, InstantiationException, IllegalAccessException, NoSuchMethodException, IllegalArgumentException, InvocationTargetException {
    final byte[] testData = generateRandomData(_12KB);
    final InputStream is = new MarkShieldInputStream(new UnsynchronizedByteArrayInputStream(testData));
    // first CachingFilterInputStream
    final CachingFilterInputStream cfis1 = new CachingFilterInputStream(getNewCache(is));
    assertArrayEquals(testData, consumeInputStream(cfis1));
    // second CachingFilterInputStream wraps first CachingFilterInputStream
    final CachingFilterInputStream cfis2 = new CachingFilterInputStream(cfis1);
    assertArrayEquals(testData, consumeInputStream(cfis2));
}

Example 4 with MarkShieldInputStream

use of org.apache.commons.io.input.MarkShieldInputStream in project exist by eXist-db.

the class CachingFilterInputStreamTest_NonMarkableByteArrayInputStream method constructed_from_CachingFilterInputStream_partiallyConsumed.

@Test
public void constructed_from_CachingFilterInputStream_partiallyConsumed() throws IOException, InstantiationException, IllegalAccessException, NoSuchMethodException, IllegalArgumentException, InvocationTargetException {
    final byte[] testData = generateRandomData(_12KB);
    final InputStream is = new MarkShieldInputStream(new UnsynchronizedByteArrayInputStream(testData));
    // first CachingFilterInputStream
    final CachingFilterInputStream cfis1 = new CachingFilterInputStream(getNewCache(is));
    // read first 6KB
    final byte[] firstPart = new byte[_6KB];
    cfis1.read(firstPart);
    // ensure first 6KB was read!
    assertArrayEquals(subArray(testData, _6KB), firstPart);
    // second CachingFilterInputStream wraps first CachingFilterInputStream
    final CachingFilterInputStream cfis2 = new CachingFilterInputStream(cfis1);
    assertArrayEquals(testData, consumeInputStream(cfis2));
}