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Diffstat (limited to 'libjava/classpath/java/util/zip/ZipEntry.java')
| -rw-r--r-- | libjava/classpath/java/util/zip/ZipEntry.java | 457 |
1 files changed, 0 insertions, 457 deletions
diff --git a/libjava/classpath/java/util/zip/ZipEntry.java b/libjava/classpath/java/util/zip/ZipEntry.java deleted file mode 100644 index 73afc89..0000000 --- a/libjava/classpath/java/util/zip/ZipEntry.java +++ /dev/null @@ -1,457 +0,0 @@ -/* ZipEntry.java -- - Copyright (C) 2001, 2002, 2004, 2005 Free Software Foundation, Inc. - -This file is part of GNU Classpath. - -GNU Classpath is free software; you can redistribute it and/or modify -it under the terms of the GNU General Public License as published by -the Free Software Foundation; either version 2, or (at your option) -any later version. - -GNU Classpath is distributed in the hope that it will be useful, but -WITHOUT ANY WARRANTY; without even the implied warranty of -MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU -General Public License for more details. - -You should have received a copy of the GNU General Public License -along with GNU Classpath; see the file COPYING. If not, write to the -Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA -02110-1301 USA. - -Linking this library statically or dynamically with other modules is -making a combined work based on this library. Thus, the terms and -conditions of the GNU General Public License cover the whole -combination. - -As a special exception, the copyright holders of this library give you -permission to link this library with independent modules to produce an -executable, regardless of the license terms of these independent -modules, and to copy and distribute the resulting executable under -terms of your choice, provided that you also meet, for each linked -independent module, the terms and conditions of the license of that -module. An independent module is a module which is not derived from -or based on this library. If you modify this library, you may extend -this exception to your version of the library, but you are not -obligated to do so. If you do not wish to do so, delete this -exception statement from your version. */ - - -package java.util.zip; - -import java.util.Calendar; - -/** - * This class represents a member of a zip archive. ZipFile and - * ZipInputStream will give you instances of this class as information - * about the members in an archive. On the other hand ZipOutputStream - * needs an instance of this class to create a new member. - * - * @author Jochen Hoenicke - */ -public class ZipEntry implements ZipConstants, Cloneable -{ - private static final byte KNOWN_SIZE = 1; - private static final byte KNOWN_CSIZE = 2; - private static final byte KNOWN_CRC = 4; - private static final byte KNOWN_TIME = 8; - private static final byte KNOWN_DOSTIME = 16; - private static final byte KNOWN_EXTRA = 32; - - /** Immutable name of the entry */ - private final String name; - /** Uncompressed size */ - private int size; - /** Compressed size */ - private long compressedSize = -1; - /** CRC of uncompressed data */ - private int crc; - /** Comment or null if none */ - private String comment = null; - /** The compression method. Either DEFLATED or STORED, by default -1. */ - private byte method = -1; - /** Flags specifying what we know about this entry */ - private byte known = 0; - /** - * The 32bit DOS encoded format for the time of this entry. Only valid if - * KNOWN_DOSTIME is set in known. - */ - private int dostime; - /** - * The 64bit Java encoded millisecond time since the beginning of the epoch. - * Only valid if KNOWN_TIME is set in known. - */ - private long time; - /** Extra data */ - private byte[] extra = null; - - int flags; /* used by ZipOutputStream */ - int offset; /* used by ZipFile and ZipOutputStream */ - - /** - * Compression method. This method doesn't compress at all. - */ - public static final int STORED = 0; - /** - * Compression method. This method uses the Deflater. - */ - public static final int DEFLATED = 8; - - /** - * Creates a zip entry with the given name. - * @param name the name. May include directory components separated - * by '/'. - * - * @exception NullPointerException when name is null. - * @exception IllegalArgumentException when name is bigger then 65535 chars. - */ - public ZipEntry(String name) - { - int length = name.length(); - if (length > 65535) - throw new IllegalArgumentException("name length is " + length); - this.name = name; - } - - /** - * Creates a copy of the given zip entry. - * @param e the entry to copy. - */ - public ZipEntry(ZipEntry e) - { - this(e, e.name); - } - - ZipEntry(ZipEntry e, String name) - { - this.name = name; - known = e.known; - size = e.size; - compressedSize = e.compressedSize; - crc = e.crc; - dostime = e.dostime; - time = e.time; - method = e.method; - extra = e.extra; - comment = e.comment; - } - - final void setDOSTime(int dostime) - { - this.dostime = dostime; - known |= KNOWN_DOSTIME; - known &= ~KNOWN_TIME; - } - - final int getDOSTime() - { - if ((known & KNOWN_DOSTIME) != 0) - return dostime; - else if ((known & KNOWN_TIME) != 0) - { - Calendar cal = Calendar.getInstance(); - cal.setTimeInMillis(time); - dostime = (cal.get(Calendar.YEAR) - 1980 & 0x7f) << 25 - | (cal.get(Calendar.MONTH) + 1) << 21 - | (cal.get(Calendar.DAY_OF_MONTH)) << 16 - | (cal.get(Calendar.HOUR_OF_DAY)) << 11 - | (cal.get(Calendar.MINUTE)) << 5 - | (cal.get(Calendar.SECOND)) >> 1; - known |= KNOWN_DOSTIME; - return dostime; - } - else - return 0; - } - - /** - * Creates a copy of this zip entry. - */ - public Object clone() - { - // JCL defines this as being the same as the copy constructor above, - // except that value of the "extra" field is also copied. Take care - // that in the case of a subclass we use clone() rather than the copy - // constructor. - ZipEntry clone; - if (this.getClass() == ZipEntry.class) - clone = new ZipEntry(this); - else - { - try - { - clone = (ZipEntry) super.clone(); - } - catch (CloneNotSupportedException e) - { - throw new InternalError(); - } - } - if (extra != null) - { - clone.extra = new byte[extra.length]; - System.arraycopy(extra, 0, clone.extra, 0, extra.length); - } - return clone; - } - - /** - * Returns the entry name. The path components in the entry are - * always separated by slashes ('/'). - */ - public String getName() - { - return name; - } - - /** - * Sets the time of last modification of the entry. - * @time the time of last modification of the entry. - */ - public void setTime(long time) - { - this.time = time; - this.known |= KNOWN_TIME; - this.known &= ~KNOWN_DOSTIME; - } - - /** - * Gets the time of last modification of the entry. - * @return the time of last modification of the entry, or -1 if unknown. - */ - public long getTime() - { - // The extra bytes might contain the time (posix/unix extension) - parseExtra(); - - if ((known & KNOWN_TIME) != 0) - return time; - else if ((known & KNOWN_DOSTIME) != 0) - { - int sec = 2 * (dostime & 0x1f); - int min = (dostime >> 5) & 0x3f; - int hrs = (dostime >> 11) & 0x1f; - int day = (dostime >> 16) & 0x1f; - int mon = ((dostime >> 21) & 0xf) - 1; - int year = ((dostime >> 25) & 0x7f) + 1980; /* since 1900 */ - - try - { - Calendar cal = Calendar.getInstance(); - cal.set(year, mon, day, hrs, min, sec); - time = cal.getTimeInMillis(); - known |= KNOWN_TIME; - return time; - } - catch (RuntimeException ex) - { - /* Ignore illegal time stamp */ - known &= ~KNOWN_TIME; - return -1; - } - } - else - return -1; - } - - /** - * Sets the size of the uncompressed data. - * @exception IllegalArgumentException if size is not in 0..0xffffffffL - */ - public void setSize(long size) - { - if ((size & 0xffffffff00000000L) != 0) - throw new IllegalArgumentException(); - this.size = (int) size; - this.known |= KNOWN_SIZE; - } - - /** - * Gets the size of the uncompressed data. - * @return the size or -1 if unknown. - */ - public long getSize() - { - return (known & KNOWN_SIZE) != 0 ? size & 0xffffffffL : -1L; - } - - /** - * Sets the size of the compressed data. - */ - public void setCompressedSize(long csize) - { - this.compressedSize = csize; - } - - /** - * Gets the size of the compressed data. - * @return the size or -1 if unknown. - */ - public long getCompressedSize() - { - return compressedSize; - } - - /** - * Sets the crc of the uncompressed data. - * @exception IllegalArgumentException if crc is not in 0..0xffffffffL - */ - public void setCrc(long crc) - { - if ((crc & 0xffffffff00000000L) != 0) - throw new IllegalArgumentException(); - this.crc = (int) crc; - this.known |= KNOWN_CRC; - } - - /** - * Gets the crc of the uncompressed data. - * @return the crc or -1 if unknown. - */ - public long getCrc() - { - return (known & KNOWN_CRC) != 0 ? crc & 0xffffffffL : -1L; - } - - /** - * Sets the compression method. Only DEFLATED and STORED are - * supported. - * @exception IllegalArgumentException if method is not supported. - * @see ZipOutputStream#DEFLATED - * @see ZipOutputStream#STORED - */ - public void setMethod(int method) - { - if (method != ZipOutputStream.STORED - && method != ZipOutputStream.DEFLATED) - throw new IllegalArgumentException(); - this.method = (byte) method; - } - - /** - * Gets the compression method. - * @return the compression method or -1 if unknown. - */ - public int getMethod() - { - return method; - } - - /** - * Sets the extra data. - * @exception IllegalArgumentException if extra is longer than 0xffff bytes. - */ - public void setExtra(byte[] extra) - { - if (extra == null) - { - this.extra = null; - return; - } - if (extra.length > 0xffff) - throw new IllegalArgumentException(); - this.extra = extra; - } - - private void parseExtra() - { - // Already parsed? - if ((known & KNOWN_EXTRA) != 0) - return; - - if (extra == null) - { - known |= KNOWN_EXTRA; - return; - } - - try - { - int pos = 0; - while (pos < extra.length) - { - int sig = (extra[pos++] & 0xff) - | (extra[pos++] & 0xff) << 8; - int len = (extra[pos++] & 0xff) - | (extra[pos++] & 0xff) << 8; - if (sig == 0x5455) - { - /* extended time stamp */ - int flags = extra[pos]; - if ((flags & 1) != 0) - { - long time = ((extra[pos+1] & 0xff) - | (extra[pos+2] & 0xff) << 8 - | (extra[pos+3] & 0xff) << 16 - | (extra[pos+4] & 0xff) << 24); - setTime(time*1000); - } - } - pos += len; - } - } - catch (ArrayIndexOutOfBoundsException ex) - { - /* be lenient */ - } - - known |= KNOWN_EXTRA; - return; - } - - /** - * Gets the extra data. - * @return the extra data or null if not set. - */ - public byte[] getExtra() - { - return extra; - } - - /** - * Sets the entry comment. - * @exception IllegalArgumentException if comment is longer than 0xffff. - */ - public void setComment(String comment) - { - if (comment != null && comment.length() > 0xffff) - throw new IllegalArgumentException(); - this.comment = comment; - } - - /** - * Gets the comment. - * @return the comment or null if not set. - */ - public String getComment() - { - return comment; - } - - /** - * Gets true, if the entry is a directory. This is solely - * determined by the name, a trailing slash '/' marks a directory. - */ - public boolean isDirectory() - { - int nlen = name.length(); - return nlen > 0 && name.charAt(nlen - 1) == '/'; - } - - /** - * Gets the string representation of this ZipEntry. This is just - * the name as returned by getName(). - */ - public String toString() - { - return name; - } - - /** - * Gets the hashCode of this ZipEntry. This is just the hashCode - * of the name. Note that the equals method isn't changed, though. - */ - public int hashCode() - { - return name.hashCode(); - } -} |