IOUtils (Grails 6.2.1)

grails.io.IOUtils

```
@groovy.transform.CompileStatic
class IOUtils
extends SpringIOUtils
```
Utility methods for performing I/O operations.
Authors:
Graeme Rocher
Since:
2.4

Nested Class Summary

Nested classes
Modifiers	Name	Description
`class`	`IOUtils.1`

Field Summary

Fields
Modifiers	Name	Description
`static java.lang.String`	`RESOURCE_JAR_PREFIX`
`static java.lang.String`	`RESOURCE_WAR_PREFIX`
`private static java.lang.String`	`applicationDirectory`

Inherited fields
Fields inherited from class	Fields
`class SpringIOUtils`	`BUFFER_SIZE, CHARS, algorithms, saxParserFactory`

Constructor Summary

Constructors
Constructor and description
`IOUtils ()`

Methods Summary

Methods
Type Params	Return Type	Name and description
	`static void`	`copy(java.io.InputStream input, java.io.Writer output, java.lang.String encoding)` Copy an InputStream to the given writer with the given encoding
	`static java.lang.String`	`findApplicationDirectory()` Finds the directory where the Application class is contained
	`static java.io.File`	`findApplicationDirectoryFile()`
	`static java.io.File`	`findApplicationDirectoryFile(java.lang.Class targetClass)` Finds the application directory for the given class
	`static java.net.URL`	`findClassResource(java.lang.Class targetClass)` Returns the URL resource for the location on disk of the given class or null if it cannot be found
	`private static java.io.File`	`findGrailsApp(java.io.File file)`
	`static java.io.File`	`findJarFile(java.lang.Class targetClass)` Finds a JAR file for the given class
	`static java.io.File`	`findJarFile(Resource resource)` Finds a JAR for the given resource
	`static java.io.File`	`findJarFile(java.net.URL resource)` Finds a JAR for the given resource
	`static java.net.URL`	`findJarResource(java.lang.Class targetClass)` Returns the URL resource for the location on disk of the given class or null if it cannot be found
	`static java.net.URL`	`findResourceRelativeToClass(java.lang.Class targetClass, java.lang.String path)` Finds a URL within a JAR relative (from the root) to the given class
	`static java.net.URL`	`findRootResource(java.lang.Class targetClass)` Returns a URL that represents the root classpath resource where the given class was loaded from
	`static java.net.URL`	`findRootResourcesURL(java.lang.Class targetClass)` This method differs from findRootResource(java.lang.Class) in that it will find the root URL where to load resources defined in src/main/resources
	`static java.io.File`	`findSourceFile(java.lang.String className)` Finds a source file for the given class name
	`static boolean`	`isWithinBinary(java.net.URL url)` Whether the given URL is within a binary like a JAR or WAR file
	`static java.io.BufferedInputStream`	`openStream(java.io.File file)` Gracefully opens a stream for a file, throwing exceptions where appropriate.
	`static java.lang.String`	`toString(java.io.Reader reader)` Convert a reader to a String, reading the data from the reader
	`static java.lang.String`	`toString(java.io.InputStream stream, java.lang.String encoding)` Convert a stream to a String, reading the data from the stream

Inherited Methods Summary

Inherited Methods
Methods inherited from class	Name
`class SpringIOUtils`	`addAll, byteArrayToHexString, closeQuietly, compute, computeChecksum, copy, copy, copy, copy, copy, copy, copy, copyAll, copyToByteArray, copyToByteArray, copyToString, createParserFactory, createXmlSlurper, getMessageDigest, newSAXParser`

- Field Detail
  - public static final java.lang.String RESOURCE_JAR_PREFIX
  - public static final java.lang.String RESOURCE_WAR_PREFIX
  - private static java.lang.String applicationDirectory
- Constructor Detail
  - IOUtils()
- Method Detail
  - static void copy(java.io.InputStream input, java.io.Writer output, java.lang.String encoding)
    
    Copy an InputStream to the given writer with the given encoding
    Parameters:
    input - The input
    output - The writer
    encoding - The encoding
  - @groovy.transform.Memoized static java.lang.String findApplicationDirectory()
    
    Finds the directory where the Application class is contained
    Returns:
    The application directory
  - @groovy.transform.Memoized static java.io.File findApplicationDirectoryFile()
  - static java.io.File findApplicationDirectoryFile(java.lang.Class targetClass)
    
    Finds the application directory for the given class
    Parameters:
    targetClass - The target class
    Returns:
    The application directory or null if it can't be found
  - static java.net.URL findClassResource(java.lang.Class targetClass)
    
    Returns the URL resource for the location on disk of the given class or null if it cannot be found
    Parameters:
    targetClass - The target class
    Returns:
    The URL to class file or null
  - private static java.io.File findGrailsApp(java.io.File file)
  - static java.io.File findJarFile(java.lang.Class targetClass)
    
    Finds a JAR file for the given class
    Parameters:
    targetClass - The target class
    Returns:
    The JAR file
  - static java.io.File findJarFile(Resource resource)
    
    Finds a JAR for the given resource
    Parameters:
    resource - The resource
    Returns:
    The JAR file or null if it can't be found
  - static java.io.File findJarFile(java.net.URL resource)
    
    Finds a JAR for the given resource
    Parameters:
    resource - The resource
    Returns:
    The JAR file or null if it can't be found
  - static java.net.URL findJarResource(java.lang.Class targetClass)
    
    Returns the URL resource for the location on disk of the given class or null if it cannot be found
    Parameters:
    targetClass - The target class
    Returns:
    The URL to class file or null
  - static java.net.URL findResourceRelativeToClass(java.lang.Class targetClass, java.lang.String path)
    
    Finds a URL within a JAR relative (from the root) to the given class @return
    Parameters:
    targetClass
    path
  - static java.net.URL findRootResource(java.lang.Class targetClass)
    
    Returns a URL that represents the root classpath resource where the given class was loaded from
    Parameters:
    targetClass - The target class
    Returns:
    The URL to class file or null
  - static java.net.URL findRootResourcesURL(java.lang.Class targetClass)
    
    This method differs from findRootResource(java.lang.Class) in that it will find the root URL where to load resources defined in src/main/resources At development time this with be build/main/resources, but in production it will be relative to the class. @return
    Parameters:
    targetClass
    path
  - @groovy.transform.Memoized static java.io.File findSourceFile(java.lang.String className)
    
    Finds a source file for the given class name
    Parameters:
    className - The class name
    Returns:
    The source file
  - static boolean isWithinBinary(java.net.URL url)
    
    Whether the given URL is within a binary like a JAR or WAR file
    Parameters:
    url - The URL
    Returns:
    True if it is
  - static java.io.BufferedInputStream openStream(java.io.File file)
    
    Gracefully opens a stream for a file, throwing exceptions where appropriate. Based off the commons-io method
    Parameters:
    file - The file
    Returns:
    The stream
  - static java.lang.String toString(java.io.Reader reader)
    
    Convert a reader to a String, reading the data from the reader
    Parameters:
    reader - The reader
    Returns:
    The string
  - static java.lang.String toString(java.io.InputStream stream, java.lang.String encoding)
    
    Convert a stream to a String, reading the data from the stream
    Parameters:
    stream - The stream
    Returns:
    The string

| Detail:
Field
Constructor
Method

Groovy Documentation

[Groovy] Class IOUtils

Nested Class Summary

Field Summary

Constructor Summary

Methods Summary

Inherited Methods Summary

Field Detail

public static final java.lang.String RESOURCE_JAR_PREFIX

public static final java.lang.String RESOURCE_WAR_PREFIX

private static java.lang.String applicationDirectory

Constructor Detail

IOUtils()

Method Detail

static void copy(java.io.InputStream input, java.io.Writer output, java.lang.String encoding)

@groovy.transform.Memoized static java.lang.String findApplicationDirectory()

@groovy.transform.Memoized static java.io.File findApplicationDirectoryFile()

static java.io.File findApplicationDirectoryFile(java.lang.Class targetClass)

static java.net.URL findClassResource(java.lang.Class targetClass)

private static java.io.File findGrailsApp(java.io.File file)

static java.io.File findJarFile(java.lang.Class targetClass)

static java.io.File findJarFile(Resource resource)

static java.io.File findJarFile(java.net.URL resource)

static java.net.URL findJarResource(java.lang.Class targetClass)

static java.net.URL findResourceRelativeToClass(java.lang.Class targetClass, java.lang.String path)

static java.net.URL findRootResource(java.lang.Class targetClass)

static java.net.URL findRootResourcesURL(java.lang.Class targetClass)

@groovy.transform.Memoized static java.io.File findSourceFile(java.lang.String className)

static boolean isWithinBinary(java.net.URL url)

static java.io.BufferedInputStream openStream(java.io.File file)

static java.lang.String toString(java.io.Reader reader)

static java.lang.String toString(java.io.InputStream stream, java.lang.String encoding)