Class FastZipEntry

java.lang.Object
nonapi.io.github.classgraph.fastzipfilereader.FastZipEntry
All Implemented Interfaces:
Comparable<FastZipEntry>
public class FastZipEntry extends Object implements Comparable<FastZipEntry>
A zip entry within a LogicalZipFile.

  • Field Summary

    Fields
    Modifier and Type
    Field
    Description
    final long
    compressedSize
    The compressed size of the zip entry, in bytes.
    final String
    entryName
    The zip entry path.
    final String
    entryNameUnversioned
    The unversioned entry name (i.e.
    final int
    fileAttributes
    The file attributes for this resource, or 0 if unknown.
    (package private) final boolean
    isDeflated
    True if the zip entry is deflated; false if the zip entry is stored.
    private final int
    lastModifiedDateMSDOS
    The last modified date in MSDOS format, if lastModifiedTimeMillis is 0L.
    private long
    lastModifiedTimeMillis
    The last modified millis since the epoch, or 0L if it is unknown
    private final int
    lastModifiedTimeMSDOS
    The last modified time in MSDOS format, if lastModifiedTimeMillis is 0L.
    private final long
    locHeaderPos
    The offset of the entry's local header, as an offset relative to the parent logical zipfile.
    (package private) final LogicalZipFile
    parentLogicalZipFile
    The parent logical zipfile.
    private Slice
    slice
    The Slice for the zip entry's raw data (which can be either stored or deflated).
    final long
    uncompressedSize
    The uncompressed size of the zip entry, in bytes.
    (package private) final int
    version
    The version code (>= 9), or 8 for the base layer or a non-versioned jar (whether JDK 7 or 8 compatible).

  • Constructor Summary

    Constructors
    Constructor
    Description
    FastZipEntry(LogicalZipFile parentLogicalZipFile, long locHeaderPos, String entryName, boolean isDeflated, long compressedSize, long uncompressedSize, long lastModifiedTimeMillis, int lastModifiedTimeMSDOS, int lastModifiedDateMSDOS, int fileAttributes, boolean enableMultiReleaseVersions)
    Constructor.

  • Method Summary

    Modifier and Type
    Method
    Description
    int
    compareTo(FastZipEntry o)
    Sort in decreasing order of version number, then lexicographically increasing order of unversioned entry path.
    boolean
    equals(Object obj)
     
    long
    getLastModifiedTimeMillis()
    Get the last modified time in Epoch millis, or 0L if unknown.
    String
    getPath()
    Get the path to this zip entry, using "!/" as a separator between the parent logical zipfile and the entry name.
    Slice
    getSlice()
    Lazily get zip entry slice -- this is deferred until zip entry data needs to be read, in order to avoid randomly seeking within zipfile for every entry as the central directory is read.
    int
    hashCode()
     
    String
    toString()
     

    Methods inherited from class Object

    clone, finalize, getClass, notify, notifyAll, wait, wait, wait

  • Field Details

    • parentLogicalZipFile

      final LogicalZipFile parentLogicalZipFile
      The parent logical zipfile.

    • locHeaderPos

      private final long locHeaderPos
      The offset of the entry's local header, as an offset relative to the parent logical zipfile.

    • entryName

      public final String entryName
      The zip entry path.

    • isDeflated

      final boolean isDeflated
      True if the zip entry is deflated; false if the zip entry is stored.

    • compressedSize

      public final long compressedSize
      The compressed size of the zip entry, in bytes.

    • uncompressedSize

      public final long uncompressedSize
      The uncompressed size of the zip entry, in bytes.

    • lastModifiedTimeMillis

      private long lastModifiedTimeMillis
      The last modified millis since the epoch, or 0L if it is unknown

    • lastModifiedTimeMSDOS

      private final int lastModifiedTimeMSDOS
      The last modified time in MSDOS format, if lastModifiedTimeMillis is 0L.

    • lastModifiedDateMSDOS

      private final int lastModifiedDateMSDOS
      The last modified date in MSDOS format, if lastModifiedTimeMillis is 0L.

    • fileAttributes

      public final int fileAttributes
      The file attributes for this resource, or 0 if unknown.

    • slice

      private Slice slice
      The Slice for the zip entry's raw data (which can be either stored or deflated).

    • version

      final int version
      The version code (>= 9), or 8 for the base layer or a non-versioned jar (whether JDK 7 or 8 compatible).

    • entryNameUnversioned

      public final String entryNameUnversioned
      The unversioned entry name (i.e. entryName with "META_INF/versions/{versionInt}/" stripped)

  • Constructor Details

    • FastZipEntry

      FastZipEntry(LogicalZipFile parentLogicalZipFile, long locHeaderPos, String entryName, boolean isDeflated, long compressedSize, long uncompressedSize, long lastModifiedTimeMillis, int lastModifiedTimeMSDOS, int lastModifiedDateMSDOS, int fileAttributes, boolean enableMultiReleaseVersions)
      Constructor.
      Parameters:
      parentLogicalZipFile - The parent logical zipfile containing this entry.
      locHeaderPos - The offset of the LOC header for this entry within the parent logical zipfile.
      entryName - The name of the entry.
      isDeflated - True if the entry is deflated; false if the entry is stored.
      compressedSize - The compressed size of the entry.
      uncompressedSize - The uncompressed size of the entry.
      lastModifiedTimeMillis - The last modified date/time in millis since the epoch, or 0L if unknown (in which case, the MSDOS time and date fields will be provided).
      lastModifiedTimeMSDOS - The last modified date, in MSDOS format, if lastModifiedMillis is 0L.
      lastModifiedDateMSDOS - The last modified date, in MSDOS format, if lastModifiedMillis is 0L.
      fileAttributes - The POSIX file attribute bits from the zip entry.

  • Method Details

    • getSlice

      public Slice getSlice() throws IOException
      Lazily get zip entry slice -- this is deferred until zip entry data needs to be read, in order to avoid randomly seeking within zipfile for every entry as the central directory is read.
      Returns:
      the offset within the physical zip file of the entry's start offset.
      Throws:
      IOException - If an I/O exception occurs.

    • getPath

      public String getPath()
      Get the path to this zip entry, using "!/" as a separator between the parent logical zipfile and the entry name.
      Returns:
      the path of the entry

    • getLastModifiedTimeMillis

      public long getLastModifiedTimeMillis()
      Get the last modified time in Epoch millis, or 0L if unknown.
      Returns:
      the last modified time in Epoch millis.

    • compareTo

      public int compareTo(FastZipEntry o)
      Sort in decreasing order of version number, then lexicographically increasing order of unversioned entry path.
      Specified by:
      compareTo in interface Comparable<FastZipEntry>
      Parameters:
      o - the object to compare to
      Returns:
      the result of comparison

    • hashCode

      public int hashCode()
      Overrides:
      hashCode in class Object

    • equals

      public boolean equals(Object obj)
      Overrides:
      equals in class Object

    • toString

      public String toString()
      Overrides:
      toString in class Object