BaseLazyImage (common-java-码云(gitee.com))

java.lang.Object
- net.gdface.image.BaseLazyImage

All Implemented Interfaces:

ImageMatrix

Direct Known Subclasses:

LazyImage
```
public abstract class BaseLazyImage
extends java.lang.Object
implements ImageMatrix
```
图像数据处理对象

Author:

guyadong

Field Summary

Fields
Modifier and Type	Field and Description
`protected boolean`	`autoClose` 是否在读取图像结束时自动执行 `close()`释放资源默认为`true`
`protected int`	`height`
`protected byte[]`	`imgBytes` 图像原始数据(未解码)
`protected java.io.File`	`localFile` 图像数据本地存储文件
`protected byte[]`	`matrixBGR` BGR格式的图像矩阵数据(全图)
`protected byte[]`	`matrixGray` 灰度图像矩阵数据(全图)
`protected byte[]`	`matrixRGB` RGB格式的图像矩阵数据(全图)
`protected byte[]`	`matrixRGBA` RGBA格式的图像矩阵数据(全图)
`protected java.lang.String`	`md5` 图像数据的MD5校验码
`protected java.lang.String`	`suffix` 图像文件后缀
`protected int`	`width`

Constructor Summary

Constructors
Modifier	Constructor and Description
`protected`	`BaseLazyImage()`
	`BaseLazyImage(byte[] imgBytes)`
	`BaseLazyImage(java.io.File src, java.lang.String md5)` 用本地图像文件创建对象

Method Summary

All Methods Static Methods Instance Methods Abstract Methods Concrete Methods
Modifier and Type	Method and Description
`void`	`close()` 释放资源
`void`	`finalize()`
`int`	`getHeight()`
`byte[]`	`getImgBytes()` 返回图像数据字节数组如果图像数据在本地文件中，则方法第一次被调用时将数据从文件中读取到内存
`static LazyImageFactory`	`getLazyImageFactory()` 返回当前 `LazyImageFactory`实例
`java.io.File`	`getLocalFile()`
`java.lang.String`	`getMd5()`
`java.lang.String`	`getSuffix()`
`int`	`getWidth()`
`abstract <T extends BaseLazyImage> T`	`open()` 读取图像基本信息，检查图像数据有效性
`java.io.File`	`save(java.io.File folder)` 以 `md5`为名字将文件保存在`folder`文件夹下如果同名文件存在，且长度不为0时不覆盖
`BaseLazyImage`	`setAutoClose(boolean autoClose)` 在执行 `#read()`或 `open()`之前调用,才有效
`void`	`wirteJPEG(java.io.OutputStream out)`
`abstract byte[]`	`wirteJPEGBytes()`
`void`	`wirtePNGB(java.io.OutputStream out)`
`abstract byte[]`	`wirtePNGBytes()`

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

Methods inherited from interface net.gdface.image.ImageMatrix
getMatrixBGR, getMatrixGray, getMatrixRGB, getMatrixRGBA

- Field Detail
  - imgBytes
```
protected byte[] imgBytes
```
    图像原始数据(未解码)
  - localFile
```
protected java.io.File localFile
```
    图像数据本地存储文件
  - md5
```
protected java.lang.String md5
```
    图像数据的MD5校验码
  - suffix
```
protected java.lang.String suffix
```
    图像文件后缀
  - autoClose
```
protected boolean autoClose
```
    是否在读取图像结束时自动执行 close()释放资源
    默认为true
  - width
```
protected int width
```
  - height
```
protected int height
```
  - matrixRGB
```
protected byte[] matrixRGB
```
    RGB格式的图像矩阵数据(全图)
  - matrixBGR
```
protected byte[] matrixBGR
```
    BGR格式的图像矩阵数据(全图)
  - matrixGray
```
protected byte[] matrixGray
```
    灰度图像矩阵数据(全图)
  - matrixRGBA
```
protected byte[] matrixRGBA
```
    RGBA格式的图像矩阵数据(全图)
- Constructor Detail
  - BaseLazyImage
```
protected BaseLazyImage()
```
  - BaseLazyImage
```
public BaseLazyImage(byte[] imgBytes)
```
    Parameters:
    
    imgBytes - 图像数据,imgBytes为null或为空,则抛出 IllegalArgumentException
  - BaseLazyImage
```
public BaseLazyImage(java.io.File src,
                     java.lang.String md5)
              throws java.io.FileNotFoundException
```
    用本地图像文件创建对象
    
    Parameters:
    
    src -
    
    md5 - 文件的MD5校验码，为null时自动计算
    
    Throws:
    
    java.io.FileNotFoundException
- Method Detail
  - getImgBytes
```
public byte[] getImgBytes()
```
    返回图像数据字节数组
    如果图像数据在本地文件中，则方法第一次被调用时将数据从文件中读取到内存
    
    Returns:
    
    the imgBytes,如果为无效图像，则返回null
    
    Throws:
    
    java.lang.IllegalArgumentException - 参数错误
  - getMd5
```
public java.lang.String getMd5()
```
    Returns:
    
    the md5
  - getSuffix
```
public java.lang.String getSuffix()
```
    Returns:
    
    the suffix
  - getLocalFile
```
public java.io.File getLocalFile()
```
    Returns:
    
    localFile
  - getWidth
```
public int getWidth()
```
    Specified by:
    
    getWidth in interface ImageMatrix
    
    Returns:
    
    width
  - getHeight
```
public int getHeight()
```
    Specified by:
    
    getHeight in interface ImageMatrix
    
    Returns:
    
    height
  - setAutoClose
```
public BaseLazyImage setAutoClose(boolean autoClose)
```
    在执行 #read()或 open()之前调用,才有效
    
    Parameters:
    
    autoClose - 要设置的 autoClose
    
    Returns:
    
    See Also:
    
    autoClose
  - close
```
public void close()
           throws java.io.IOException
```
    释放资源
    
    Throws:
    
    java.io.IOException
  - finalize
```
public void finalize()
              throws java.lang.Throwable
```
    Overrides:
    
    finalize in class java.lang.Object
    
    Throws:
    
    java.lang.Throwable
  - open
```
public abstract <T extends BaseLazyImage> T open()
                                          throws UnsupportedFormatException,
                                                 NotImageException
```
    读取图像基本信息，检查图像数据有效性
    
    Returns:
    
    Throws:
    
    UnsupportedFormatException
    
    NotImageException
  - save
```
public java.io.File save(java.io.File folder)
                  throws java.io.IOException
```
    以 md5为名字将文件保存在folder文件夹下
    如果同名文件存在，且长度不为0时不覆盖
    
    Parameters:
    
    folder -
    
    Returns:
    
    Throws:
    
    java.io.IOException
    
    See Also:
    
    FaceUtilits.saveBytes(byte[], File, boolean)
  - wirtePNGBytes
```
public abstract byte[] wirtePNGBytes()
```
  - wirteJPEGBytes
```
public abstract byte[] wirteJPEGBytes()
```
  - wirtePNGB
```
public void wirtePNGB(java.io.OutputStream out)
               throws java.io.IOException
```
    Throws:
    
    java.io.IOException
  - wirteJPEG
```
public void wirteJPEG(java.io.OutputStream out)
               throws java.io.IOException
```
    Throws:
    
    java.io.IOException
  - getLazyImageFactory
```
public static final LazyImageFactory getLazyImageFactory()
                                                  throws NotFoundLazyImageFactoryException
```
    返回当前 LazyImageFactory实例
    
    Returns:
    
    Throws:
    
    NotFoundLazyImageFactoryException

Class BaseLazyImage

Field Summary

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Methods inherited from interface net.gdface.image.ImageMatrix

Field Detail

imgBytes

localFile

md5

suffix

autoClose

width

height

matrixRGB

matrixBGR

matrixGray

matrixRGBA

Constructor Detail

BaseLazyImage

BaseLazyImage

BaseLazyImage

Method Detail

getImgBytes

getMd5

getSuffix

getLocalFile

getWidth

getHeight

setAutoClose

close

finalize

open

save

wirtePNGBytes

wirteJPEGBytes

wirtePNGB

wirteJPEG

getLazyImageFactory