下面列出了java.util.zip.GZIPInputStream#skip ( ) 实例代码,或者点击链接到github查看源代码,也可以在右侧发表评论。
/** http://b/3042574 GzipInputStream.skip() causing CRC failures */
public void testSkip() throws IOException {
byte[] data = new byte[1024 * 1024];
byte[] gzipped = GZIPOutputStreamTest.gzip(data);
GZIPInputStream in = new GZIPInputStream(new ByteArrayInputStream(gzipped));
long totalSkipped = 0;
long count;
do {
count = in.skip(Long.MAX_VALUE);
totalSkipped += count;
} while (count > 0);
assertEquals(data.length, totalSkipped);
in.close();
}
private static void doTest(final boolean appendGarbage,
final boolean limitGISBuff)
throws Throwable {
byte[] buf;
try (ByteArrayOutputStream baos = new ByteArrayOutputStream();
ZipOutputStream zos = new ZipOutputStream(baos)) {
final byte[] xbuf = { 'x' };
zos.putNextEntry(new ZipEntry("a.gz"));
GZIPOutputStream gos1 = new GZIPOutputStream(zos);
gos1.write(xbuf);
gos1.finish();
if (appendGarbage)
zos.write(xbuf);
zos.closeEntry();
zos.putNextEntry(new ZipEntry("b.gz"));
GZIPOutputStream gos2 = new GZIPOutputStream(zos);
gos2.write(xbuf);
gos2.finish();
zos.closeEntry();
zos.flush();
buf = baos.toByteArray();
}
try (ByteArrayInputStream bais = new ByteArrayInputStream(buf);
ZipInputStream zis = new ZipInputStream(bais)) {
zis.getNextEntry();
GZIPInputStream gis1 = limitGISBuff ?
new GZIPInputStream(zis, 4) :
new GZIPInputStream(zis);
// try to read more than the entry has
gis1.skip(2);
try {
zis.getNextEntry();
} catch (IOException e) {
throw new RuntimeException("ZIP stream was prematurely closed", e);
}
}
}
private static void doTest(final boolean appendGarbage,
final boolean limitGISBuff)
throws Throwable {
byte[] buf;
try (ByteArrayOutputStream baos = new ByteArrayOutputStream();
ZipOutputStream zos = new ZipOutputStream(baos)) {
final byte[] xbuf = { 'x' };
zos.putNextEntry(new ZipEntry("a.gz"));
GZIPOutputStream gos1 = new GZIPOutputStream(zos);
gos1.write(xbuf);
gos1.finish();
if (appendGarbage)
zos.write(xbuf);
zos.closeEntry();
zos.putNextEntry(new ZipEntry("b.gz"));
GZIPOutputStream gos2 = new GZIPOutputStream(zos);
gos2.write(xbuf);
gos2.finish();
zos.closeEntry();
zos.flush();
buf = baos.toByteArray();
}
try (ByteArrayInputStream bais = new ByteArrayInputStream(buf);
ZipInputStream zis = new ZipInputStream(bais)) {
zis.getNextEntry();
GZIPInputStream gis1 = limitGISBuff ?
new GZIPInputStream(zis, 4) :
new GZIPInputStream(zis);
// try to read more than the entry has
gis1.skip(2);
try {
zis.getNextEntry();
} catch (IOException e) {
throw new RuntimeException("ZIP stream was prematurely closed", e);
}
}
}
private static void doTest(final boolean appendGarbage,
final boolean limitGISBuff)
throws Throwable {
byte[] buf;
try (ByteArrayOutputStream baos = new ByteArrayOutputStream();
ZipOutputStream zos = new ZipOutputStream(baos)) {
final byte[] xbuf = { 'x' };
zos.putNextEntry(new ZipEntry("a.gz"));
GZIPOutputStream gos1 = new GZIPOutputStream(zos);
gos1.write(xbuf);
gos1.finish();
if (appendGarbage)
zos.write(xbuf);
zos.closeEntry();
zos.putNextEntry(new ZipEntry("b.gz"));
GZIPOutputStream gos2 = new GZIPOutputStream(zos);
gos2.write(xbuf);
gos2.finish();
zos.closeEntry();
zos.flush();
buf = baos.toByteArray();
}
try (ByteArrayInputStream bais = new ByteArrayInputStream(buf);
ZipInputStream zis = new ZipInputStream(bais)) {
zis.getNextEntry();
GZIPInputStream gis1 = limitGISBuff ?
new GZIPInputStream(zis, 4) :
new GZIPInputStream(zis);
// try to read more than the entry has
gis1.skip(2);
try {
zis.getNextEntry();
} catch (IOException e) {
throw new RuntimeException("ZIP stream was prematurely closed", e);
}
}
}
private static void doTest(final boolean appendGarbage,
final boolean limitGISBuff)
throws Throwable {
byte[] buf;
try (ByteArrayOutputStream baos = new ByteArrayOutputStream();
ZipOutputStream zos = new ZipOutputStream(baos)) {
final byte[] xbuf = { 'x' };
zos.putNextEntry(new ZipEntry("a.gz"));
GZIPOutputStream gos1 = new GZIPOutputStream(zos);
gos1.write(xbuf);
gos1.finish();
if (appendGarbage)
zos.write(xbuf);
zos.closeEntry();
zos.putNextEntry(new ZipEntry("b.gz"));
GZIPOutputStream gos2 = new GZIPOutputStream(zos);
gos2.write(xbuf);
gos2.finish();
zos.closeEntry();
zos.flush();
buf = baos.toByteArray();
}
try (ByteArrayInputStream bais = new ByteArrayInputStream(buf);
ZipInputStream zis = new ZipInputStream(bais)) {
zis.getNextEntry();
GZIPInputStream gis1 = limitGISBuff ?
new GZIPInputStream(zis, 4) :
new GZIPInputStream(zis);
// try to read more than the entry has
gis1.skip(2);
try {
zis.getNextEntry();
} catch (IOException e) {
throw new RuntimeException("ZIP stream was prematurely closed", e);
}
}
}
private static void doTest(final boolean appendGarbage,
final boolean limitGISBuff)
throws Throwable {
byte[] buf;
try (ByteArrayOutputStream baos = new ByteArrayOutputStream();
ZipOutputStream zos = new ZipOutputStream(baos)) {
final byte[] xbuf = { 'x' };
zos.putNextEntry(new ZipEntry("a.gz"));
GZIPOutputStream gos1 = new GZIPOutputStream(zos);
gos1.write(xbuf);
gos1.finish();
if (appendGarbage)
zos.write(xbuf);
zos.closeEntry();
zos.putNextEntry(new ZipEntry("b.gz"));
GZIPOutputStream gos2 = new GZIPOutputStream(zos);
gos2.write(xbuf);
gos2.finish();
zos.closeEntry();
zos.flush();
buf = baos.toByteArray();
}
try (ByteArrayInputStream bais = new ByteArrayInputStream(buf);
ZipInputStream zis = new ZipInputStream(bais)) {
zis.getNextEntry();
GZIPInputStream gis1 = limitGISBuff ?
new GZIPInputStream(zis, 4) :
new GZIPInputStream(zis);
// try to read more than the entry has
gis1.skip(2);
try {
zis.getNextEntry();
} catch (IOException e) {
throw new RuntimeException("ZIP stream was prematurely closed", e);
}
}
}
private static void doTest(final boolean appendGarbage,
final boolean limitGISBuff)
throws Throwable {
byte[] buf;
try (ByteArrayOutputStream baos = new ByteArrayOutputStream();
ZipOutputStream zos = new ZipOutputStream(baos)) {
final byte[] xbuf = { 'x' };
zos.putNextEntry(new ZipEntry("a.gz"));
GZIPOutputStream gos1 = new GZIPOutputStream(zos);
gos1.write(xbuf);
gos1.finish();
if (appendGarbage)
zos.write(xbuf);
zos.closeEntry();
zos.putNextEntry(new ZipEntry("b.gz"));
GZIPOutputStream gos2 = new GZIPOutputStream(zos);
gos2.write(xbuf);
gos2.finish();
zos.closeEntry();
zos.flush();
buf = baos.toByteArray();
}
try (ByteArrayInputStream bais = new ByteArrayInputStream(buf);
ZipInputStream zis = new ZipInputStream(bais)) {
zis.getNextEntry();
GZIPInputStream gis1 = limitGISBuff ?
new GZIPInputStream(zis, 4) :
new GZIPInputStream(zis);
// try to read more than the entry has
gis1.skip(2);
try {
zis.getNextEntry();
} catch (IOException e) {
throw new RuntimeException("ZIP stream was prematurely closed", e);
}
}
}
private static void doTest(final boolean appendGarbage,
final boolean limitGISBuff)
throws Throwable {
byte[] buf;
try (ByteArrayOutputStream baos = new ByteArrayOutputStream();
ZipOutputStream zos = new ZipOutputStream(baos)) {
final byte[] xbuf = { 'x' };
zos.putNextEntry(new ZipEntry("a.gz"));
GZIPOutputStream gos1 = new GZIPOutputStream(zos);
gos1.write(xbuf);
gos1.finish();
if (appendGarbage)
zos.write(xbuf);
zos.closeEntry();
zos.putNextEntry(new ZipEntry("b.gz"));
GZIPOutputStream gos2 = new GZIPOutputStream(zos);
gos2.write(xbuf);
gos2.finish();
zos.closeEntry();
zos.flush();
buf = baos.toByteArray();
}
try (ByteArrayInputStream bais = new ByteArrayInputStream(buf);
ZipInputStream zis = new ZipInputStream(bais)) {
zis.getNextEntry();
GZIPInputStream gis1 = limitGISBuff ?
new GZIPInputStream(zis, 4) :
new GZIPInputStream(zis);
// try to read more than the entry has
gis1.skip(2);
try {
zis.getNextEntry();
} catch (IOException e) {
throw new RuntimeException("ZIP stream was prematurely closed", e);
}
}
}
private static void doTest(final boolean appendGarbage,
final boolean limitGISBuff)
throws Throwable {
byte[] buf;
try (ByteArrayOutputStream baos = new ByteArrayOutputStream();
ZipOutputStream zos = new ZipOutputStream(baos)) {
final byte[] xbuf = { 'x' };
zos.putNextEntry(new ZipEntry("a.gz"));
GZIPOutputStream gos1 = new GZIPOutputStream(zos);
gos1.write(xbuf);
gos1.finish();
if (appendGarbage)
zos.write(xbuf);
zos.closeEntry();
zos.putNextEntry(new ZipEntry("b.gz"));
GZIPOutputStream gos2 = new GZIPOutputStream(zos);
gos2.write(xbuf);
gos2.finish();
zos.closeEntry();
zos.flush();
buf = baos.toByteArray();
}
try (ByteArrayInputStream bais = new ByteArrayInputStream(buf);
ZipInputStream zis = new ZipInputStream(bais)) {
zis.getNextEntry();
GZIPInputStream gis1 = limitGISBuff ?
new GZIPInputStream(zis, 4) :
new GZIPInputStream(zis);
// try to read more than the entry has
gis1.skip(2);
try {
zis.getNextEntry();
} catch (IOException e) {
throw new RuntimeException("ZIP stream was prematurely closed", e);
}
}
}
private static void doTest(final boolean appendGarbage,
final boolean limitGISBuff)
throws Throwable {
byte[] buf;
try (ByteArrayOutputStream baos = new ByteArrayOutputStream();
ZipOutputStream zos = new ZipOutputStream(baos)) {
final byte[] xbuf = { 'x' };
zos.putNextEntry(new ZipEntry("a.gz"));
GZIPOutputStream gos1 = new GZIPOutputStream(zos);
gos1.write(xbuf);
gos1.finish();
if (appendGarbage)
zos.write(xbuf);
zos.closeEntry();
zos.putNextEntry(new ZipEntry("b.gz"));
GZIPOutputStream gos2 = new GZIPOutputStream(zos);
gos2.write(xbuf);
gos2.finish();
zos.closeEntry();
zos.flush();
buf = baos.toByteArray();
}
try (ByteArrayInputStream bais = new ByteArrayInputStream(buf);
ZipInputStream zis = new ZipInputStream(bais)) {
zis.getNextEntry();
GZIPInputStream gis1 = limitGISBuff ?
new GZIPInputStream(zis, 4) :
new GZIPInputStream(zis);
// try to read more than the entry has
gis1.skip(2);
try {
zis.getNextEntry();
} catch (IOException e) {
throw new RuntimeException("ZIP stream was prematurely closed", e);
}
}
}
private static void doTest(final boolean appendGarbage,
final boolean limitGISBuff)
throws Throwable {
byte[] buf;
try (ByteArrayOutputStream baos = new ByteArrayOutputStream();
ZipOutputStream zos = new ZipOutputStream(baos)) {
final byte[] xbuf = { 'x' };
zos.putNextEntry(new ZipEntry("a.gz"));
GZIPOutputStream gos1 = new GZIPOutputStream(zos);
gos1.write(xbuf);
gos1.finish();
if (appendGarbage)
zos.write(xbuf);
zos.closeEntry();
zos.putNextEntry(new ZipEntry("b.gz"));
GZIPOutputStream gos2 = new GZIPOutputStream(zos);
gos2.write(xbuf);
gos2.finish();
zos.closeEntry();
zos.flush();
buf = baos.toByteArray();
}
try (ByteArrayInputStream bais = new ByteArrayInputStream(buf);
ZipInputStream zis = new ZipInputStream(bais)) {
zis.getNextEntry();
GZIPInputStream gis1 = limitGISBuff ?
new GZIPInputStream(zis, 4) :
new GZIPInputStream(zis);
// try to read more than the entry has
gis1.skip(2);
try {
zis.getNextEntry();
} catch (IOException e) {
throw new RuntimeException("ZIP stream was prematurely closed", e);
}
}
}
private static void doTest(final boolean appendGarbage,
final boolean limitGISBuff)
throws Throwable {
byte[] buf;
try (ByteArrayOutputStream baos = new ByteArrayOutputStream();
ZipOutputStream zos = new ZipOutputStream(baos)) {
final byte[] xbuf = { 'x' };
zos.putNextEntry(new ZipEntry("a.gz"));
GZIPOutputStream gos1 = new GZIPOutputStream(zos);
gos1.write(xbuf);
gos1.finish();
if (appendGarbage)
zos.write(xbuf);
zos.closeEntry();
zos.putNextEntry(new ZipEntry("b.gz"));
GZIPOutputStream gos2 = new GZIPOutputStream(zos);
gos2.write(xbuf);
gos2.finish();
zos.closeEntry();
zos.flush();
buf = baos.toByteArray();
}
try (ByteArrayInputStream bais = new ByteArrayInputStream(buf);
ZipInputStream zis = new ZipInputStream(bais)) {
zis.getNextEntry();
GZIPInputStream gis1 = limitGISBuff ?
new GZIPInputStream(zis, 4) :
new GZIPInputStream(zis);
// try to read more than the entry has
gis1.skip(2);
try {
zis.getNextEntry();
} catch (IOException e) {
throw new RuntimeException("ZIP stream was prematurely closed", e);
}
}
}
private static void doTest(final boolean appendGarbage,
final boolean limitGISBuff)
throws Throwable {
byte[] buf;
try (ByteArrayOutputStream baos = new ByteArrayOutputStream();
ZipOutputStream zos = new ZipOutputStream(baos)) {
final byte[] xbuf = { 'x' };
zos.putNextEntry(new ZipEntry("a.gz"));
GZIPOutputStream gos1 = new GZIPOutputStream(zos);
gos1.write(xbuf);
gos1.finish();
if (appendGarbage)
zos.write(xbuf);
zos.closeEntry();
zos.putNextEntry(new ZipEntry("b.gz"));
GZIPOutputStream gos2 = new GZIPOutputStream(zos);
gos2.write(xbuf);
gos2.finish();
zos.closeEntry();
zos.flush();
buf = baos.toByteArray();
}
try (ByteArrayInputStream bais = new ByteArrayInputStream(buf);
ZipInputStream zis = new ZipInputStream(bais)) {
zis.getNextEntry();
GZIPInputStream gis1 = limitGISBuff ?
new GZIPInputStream(zis, 4) :
new GZIPInputStream(zis);
// try to read more than the entry has
gis1.skip(2);
try {
zis.getNextEntry();
} catch (IOException e) {
throw new RuntimeException("ZIP stream was prematurely closed", e);
}
}
}
private static void doTest(final boolean appendGarbage,
final boolean limitGISBuff)
throws Throwable {
byte[] buf;
try (ByteArrayOutputStream baos = new ByteArrayOutputStream();
ZipOutputStream zos = new ZipOutputStream(baos)) {
final byte[] xbuf = { 'x' };
zos.putNextEntry(new ZipEntry("a.gz"));
GZIPOutputStream gos1 = new GZIPOutputStream(zos);
gos1.write(xbuf);
gos1.finish();
if (appendGarbage)
zos.write(xbuf);
zos.closeEntry();
zos.putNextEntry(new ZipEntry("b.gz"));
GZIPOutputStream gos2 = new GZIPOutputStream(zos);
gos2.write(xbuf);
gos2.finish();
zos.closeEntry();
zos.flush();
buf = baos.toByteArray();
}
try (ByteArrayInputStream bais = new ByteArrayInputStream(buf);
ZipInputStream zis = new ZipInputStream(bais)) {
zis.getNextEntry();
GZIPInputStream gis1 = limitGISBuff ?
new GZIPInputStream(zis, 4) :
new GZIPInputStream(zis);
// try to read more than the entry has
gis1.skip(2);
try {
zis.getNextEntry();
} catch (IOException e) {
throw new RuntimeException("ZIP stream was prematurely closed", e);
}
}
}
private static void doTest(final boolean appendGarbage,
final boolean limitGISBuff)
throws Throwable {
byte[] buf;
try (ByteArrayOutputStream baos = new ByteArrayOutputStream();
ZipOutputStream zos = new ZipOutputStream(baos)) {
final byte[] xbuf = { 'x' };
zos.putNextEntry(new ZipEntry("a.gz"));
GZIPOutputStream gos1 = new GZIPOutputStream(zos);
gos1.write(xbuf);
gos1.finish();
if (appendGarbage)
zos.write(xbuf);
zos.closeEntry();
zos.putNextEntry(new ZipEntry("b.gz"));
GZIPOutputStream gos2 = new GZIPOutputStream(zos);
gos2.write(xbuf);
gos2.finish();
zos.closeEntry();
zos.flush();
buf = baos.toByteArray();
}
try (ByteArrayInputStream bais = new ByteArrayInputStream(buf);
ZipInputStream zis = new ZipInputStream(bais)) {
zis.getNextEntry();
GZIPInputStream gis1 = limitGISBuff ?
new GZIPInputStream(zis, 4) :
new GZIPInputStream(zis);
// try to read more than the entry has
gis1.skip(2);
try {
zis.getNextEntry();
} catch (IOException e) {
throw new RuntimeException("ZIP stream was prematurely closed", e);
}
}
}