org.apache.commons.compress.archivers.zip
public class ZipArchiveInputStream extends ArchiveInputStream
Note that ZipArchiveEntry.getSize() may return -1 if the
DEFLATE algorithm is used, as the size information is not available
from the header.
The ZipFile class is preferred when reading from files.
As of Apache Commons Compress it transparently supports Zip64 extensions and thus individual entries and archives larger than 4 GB or with more than 65536 entries.
ZipFile| Constructor and Description |
|---|
ZipArchiveInputStream(InputStream inputStream) |
ZipArchiveInputStream(InputStream inputStream,
String encoding) |
ZipArchiveInputStream(InputStream inputStream,
String encoding,
boolean useUnicodeExtraFields) |
ZipArchiveInputStream(InputStream inputStream,
String encoding,
boolean useUnicodeExtraFields,
boolean allowStoredEntriesWithDataDescriptor) |
| Modifier and Type | Method and Description |
|---|---|
boolean |
canReadEntryData(ArchiveEntry ae)
Whether this class is able to read the given entry.
|
void |
close() |
ArchiveEntry |
getNextEntry()
Returns the next Archive Entry in this Stream.
|
ZipArchiveEntry |
getNextZipEntry() |
static boolean |
matches(byte[] signature,
int length)
Checks if the signature matches what is expected for a zip file.
|
int |
read(byte[] buffer,
int offset,
int length) |
long |
skip(long value)
Skips over and discards value bytes of data from this input
stream.
|
count, count, getBytesRead, getCount, pushedBackBytes, readavailable, mark, markSupported, read, resetpublic ZipArchiveInputStream(InputStream inputStream)
public ZipArchiveInputStream(InputStream inputStream, String encoding)
encoding - the encoding to use for file names, use null
for the platform's default encodingpublic ZipArchiveInputStream(InputStream inputStream, String encoding, boolean useUnicodeExtraFields)
encoding - the encoding to use for file names, use null
for the platform's default encodinguseUnicodeExtraFields - whether to use InfoZIP Unicode
Extra Fields (if present) to set the file names.public ZipArchiveInputStream(InputStream inputStream, String encoding, boolean useUnicodeExtraFields, boolean allowStoredEntriesWithDataDescriptor)
encoding - the encoding to use for file names, use null
for the platform's default encodinguseUnicodeExtraFields - whether to use InfoZIP Unicode
Extra Fields (if present) to set the file names.allowStoredEntriesWithDataDescriptor - whether the stream
will try to read STORED entries that use a data descriptorpublic ZipArchiveEntry getNextZipEntry() throws IOException
IOExceptionpublic ArchiveEntry getNextEntry() throws IOException
ArchiveInputStreamgetNextEntry in class ArchiveInputStreamnull if there are no more entriesIOException - if the next entry could not be readpublic boolean canReadEntryData(ArchiveEntry ae)
May return false if it is set up to use encryption or a compression method that hasn't been implemented yet.
canReadEntryData in class ArchiveInputStreamae - the entry to testpublic int read(byte[] buffer,
int offset,
int length)
throws IOException
read in class InputStreamIOExceptionpublic void close()
throws IOException
close in interface Closeableclose in class InputStreamIOExceptionpublic long skip(long value)
throws IOException
This implementation may end up skipping over some smaller number of bytes, possibly 0, if and only if it reaches the end of the underlying stream.
The actual number of bytes skipped is returned.
skip in class InputStreamvalue - the number of bytes to be skipped.IOException - - if an I/O error occurs.IllegalArgumentException - - if value is negative.public static boolean matches(byte[] signature,
int length)
signature - the bytes to checklength - the number of bytes to checkCopyright © 2014 The Apache Software Foundation. All rights reserved.