CentralDirectoryHeader (Android APK Zip Library)

java.lang.Object
- com.android.tools.build.apkzlib.zip.CentralDirectoryHeader

All Implemented Interfaces:

java.lang.Cloneable
```
public class CentralDirectoryHeader
extends java.lang.Object
implements java.lang.Cloneable
```
The Central Directory Header contains information about files stored in the zip. Instances of this class contain information for files that already are in the zip and, for which the data was read from the Central Directory. But some instances of this class are used for new files. Because instances of this class can refer to files not yet on the zip, some of the fields may not be filled in, or may be filled in with default values.
Because compression decision is done lazily, some data is stored with futures.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`protected CentralDirectoryHeader`	`clone()`
`byte[]`	`getComment()` Obtains the entry's comment.
`java.util.concurrent.Future<CentralDirectoryHeaderCompressInfo>`	`getCompressionInfo()` Obtains the future with the compression information.
`CentralDirectoryHeaderCompressInfo`	`getCompressionInfoWithWait()` Equivalent to `getCompressionInfo().get()` but masking the possible exceptions and guaranteeing non-`null` return.
`long`	`getCrc32()` Obtains the CRC32 of the data.
`byte[]`	`getEncodedFileName()` Obtains the encoded file name.
`long`	`getExternalAttributes()` Obtains the entry's external attributes.
`ExtraField`	`getExtraField()` Obtains the data in the extra field.
`com.android.tools.build.apkzlib.zip.GPFlags`	`getGpBit()` Obtains the general-purpose bit flag.
`long`	`getInternalAttributes()` Obtains the entry's internal attributes.
`long`	`getLastModDate()` Obtains the last modification date of the entry.
`long`	`getLastModTime()` Obtains the last modification time of the entry.
`long`	`getMadeBy()` Obtains the code of the program that made the zip.
`java.lang.String`	`getName()` Obtains the name of the file.
`long`	`getOffset()` Obtains the offset in the zip file where this entry's data is.
`long`	`getUncompressedSize()` Obtains the size of the uncompressed file.
`void`	`setExtraField(ExtraField extraField)` Sets the data in the extra field.

Methods inherited from class java.lang.Object
equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Method Detail
  - getName
```
public java.lang.String getName()
```
    Obtains the name of the file.
    
    Returns:
    
    the name
  - getUncompressedSize
```
public long getUncompressedSize()
```
    Obtains the size of the uncompressed file.
    
    Returns:
    
    the size of the file
  - getCrc32
```
public long getCrc32()
```
    Obtains the CRC32 of the data.
    
    Returns:
    
    the CRC32, 0 if not yet computed
  - getMadeBy
```
public long getMadeBy()
```
    Obtains the code of the program that made the zip.
    
    Returns:
    
    the code
  - getGpBit
```
public com.android.tools.build.apkzlib.zip.GPFlags getGpBit()
```
    Obtains the general-purpose bit flag.
    
    Returns:
    
    the bit flag
  - getLastModTime
```
public long getLastModTime()
```
    Obtains the last modification time of the entry.
    
    Returns:
    
    the last modification time in MS-DOS format (see MsDosDateTimeUtils.packTime(long))
  - getLastModDate
```
public long getLastModDate()
```
    Obtains the last modification date of the entry.
    
    Returns:
    
    the last modification date in MS-DOS format (see MsDosDateTimeUtils.packDate(long))
  - getExtraField
```
public ExtraField getExtraField()
```
    Obtains the data in the extra field.
    
    Returns:
    
    the data (returns an empty array if there is none)
  - setExtraField
```
public void setExtraField(ExtraField extraField)
```
    Sets the data in the extra field.
    
    Parameters:
    
    extraField - the data to set
  - getComment
```
public byte[] getComment()
```
    Obtains the entry's comment.
    
    Returns:
    
    the comment (returns an empty array if there is no comment)
  - getInternalAttributes
```
public long getInternalAttributes()
```
    Obtains the entry's internal attributes.
    
    Returns:
    
    the entry's internal attributes
  - getExternalAttributes
```
public long getExternalAttributes()
```
    Obtains the entry's external attributes.
    
    Returns:
    
    the entry's external attributes
  - getOffset
```
public long getOffset()
```
    Obtains the offset in the zip file where this entry's data is.
    
    Returns:
    
    the offset or -1 if the file has no data in the zip and, therefore, data is stored in memory
  - getEncodedFileName
```
public byte[] getEncodedFileName()
```
    Obtains the encoded file name.
    
    Returns:
    
    the encoded file name
  - clone
```
protected CentralDirectoryHeader clone()
                                throws java.lang.CloneNotSupportedException
```
    Overrides:
    
    clone in class java.lang.Object
    
    Throws:
    
    java.lang.CloneNotSupportedException
  - getCompressionInfo
```
public java.util.concurrent.Future<CentralDirectoryHeaderCompressInfo> getCompressionInfo()
```
    Obtains the future with the compression information.
    
    Returns:
    
    the information
  - getCompressionInfoWithWait
```
public CentralDirectoryHeaderCompressInfo getCompressionInfoWithWait()
                                                              throws java.io.IOException
```
    Equivalent to getCompressionInfo().get() but masking the possible exceptions and guaranteeing non-null return.
    
    Returns:
    
    the result of the future
    
    Throws:
    
    java.io.IOException - failed to get the information

Class CentralDirectoryHeader

Method Summary

Methods inherited from class java.lang.Object

Method Detail

getName

getUncompressedSize

getCrc32

getMadeBy

getGpBit

getLastModTime

getLastModDate

getExtraField

setExtraField

getComment

getInternalAttributes

getExternalAttributes

getOffset

getEncodedFileName

clone

getCompressionInfo

getCompressionInfoWithWait