java.lang.Object
- ghidra.formats.gfilesystem.FSRL

Direct Known Subclasses:

FSRLRoot
```
public class FSRL
extends java.lang.Object
```
A _F_ile _S_ystem _R_esource _L_ocator, (name and string format patterned after URLs)
Used to locate a resource (by name) on a "filesystem", in a recursively nested fashion.
The string format of FSRLs is fstype + "://" + path + optional_MD5 [ + "|" pipe + FSRL ]*
See fromPartString(FSRL, String) for more format info.
Read the string format from right-to-left for easiest understanding... ie. "file://z|y://x" reads as "file x inside a filesystem y inside a container file z".
FSRL instances are immutable and thread-safe.
Examples (pipes shown in red since they are hard to see):
- file://dir/subdir -- simplest example, locates a file on local computer filesystem.
- file://dir/subdir/example.zip|zip://readme.txt -- points to a file named "readme.txt" in a zip file.
- file://dir/subdir/example.zip|zip://dir/nested.tar|tar://file.txt -- points to a file inside a TAR archive, which is inside a ZIP archive, which is on the local filesystem.
- file://dir/subdir/example.zip?MD5=1234567|zip://readme.txt?MD5=987654 -- points to a file named "readme.txt" (with a MD5 hash) in a zip file (that has another MD5 hash).
See FSRLRoot for examples of how FSRL and FSRLRoot's are related.
FSRL's can be created either piecemeal, from the bottom up, starting with a root filesystem FSRL and calling appendPath(String) or FSRLRoot.nestedFS(FSRL, String) methods to create deeper and deeper nested FSRLs,
or
FSRL's can be created from strings using fromString(String).
FSRLs that have a MD5 value are "fully qualified".

Field Summary

Fields
Modifier and Type Field Description

static java.lang.String PARAM_MD5

protected FSRL parent

protected java.lang.String path

Constructor Summary

Constructors
Modifier	Constructor	Description
`protected`	`FSRL(FSRL parent, java.lang.String path)`	Protected constructor called by static factory methods such as `fromString(String)` or methods that return a new instance such as `withPath(String)`.
`protected`	`FSRL(FSRL parent, java.lang.String path, java.lang.String md5)`	Protected constructor called by static factory methods such as `fromString(String)` or methods that return a new instance such as `withPath(String)`.

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`FSRL`	`appendPath(java.lang.String relPath)`	Creates a new `FSRL` instance, using the same `FSRLRoot` as this instance, combining the current `path` with the `relPath` value.
`protected void`	`appendToStringBuilder(java.lang.StringBuilder sb, boolean recurse, boolean includeParams, boolean includeFSRoot)`
`boolean`	`equals(java.lang.Object obj)`
`static FSRL`	`fromString(FSRL parent, java.lang.String fsrlStr)`	Creates a `FSRL` from a raw string.
`static FSRL`	`fromString(java.lang.String fsrlStr)`	Creates a `FSRL` from a raw string.
`FSRLRoot`	`getFS()`	Returns the `FSRLRoot` object that represents the entire `filesystem` for this FSRL.
`java.lang.String`	`getMD5()`	Returns the MD5 string associated with this file.
`java.lang.String`	`getName()`	Returns the name portion of this FSRL's path, everything after the last '/'
`java.lang.String`	`getName(int nestedDepth)`	Returns the name portion of the FSRL part at parent depth `nestedDepth`, where 0 is ourself (equiv to just calling `getName()`, 1 is the parent container's name, etc.
`int`	`getNestingDepth()`	Returns the number of `FSRLRoot`s there are in this `FSRL`.
`java.lang.String`	`getPath()`	Returns the full path/filename of this FSRL.
`int`	`hashCode()`
`boolean`	`isDescendantOf(FSRL potentialParent)`	Returns `true` if this object is a child or descendant of the specified `potentialParent` parameter.
`boolean`	`isEquivalent(FSRL other)`	Returns true if the two `FSRL`s are the same, excluding any MD5 values.
`boolean`	`isEquivalent(java.lang.String fsrlStr)`	Returns true if the two FSRLs are the same, excluding any MD5 values.
`FSRLRoot`	`makeNested(java.lang.String fstype)`	Creates a new `FSRLRoot` instance that is a child of this FSRL.
`java.util.List<FSRL>`	`split()`	Splits a `FSRL` into a `List`, with each element pointing to each level of the full FSRL.
`java.lang.String`	`toPrettyFullpathString()`	Returns a string containing the full FSRL, without FS "fstype://" portions
`java.lang.String`	`toPrettyString()`	Returns a string containing the full FSRL, excluding MD5 portions.
`java.lang.String`	`toString()`	Returns a string containing the full FSRL.
`java.lang.String`	`toStringPart()`	Returns a string containing just the current `FSRL` protocol and path.
`FSRL`	`withMD5(java.lang.String newMD5)`	Creates a new `FSRL` instance, using the same information as this instance, but with a new `MD5` value.
`FSRL`	`withPath(FSRL copyPath)`	Creates a new `FSRL` instance using the same path and other metadata present in the `copyPath` instance.
`FSRL`	`withPath(java.lang.String newpath)`	Creates a new `FSRL` instance, using the same `FSRLRoot` as this instance, but with a new path.

Methods inherited from class java.lang.Object
clone, finalize, getClass, notify, notifyAll, wait, wait, wait

- Field Detail
  - PARAM_MD5
```
public static final java.lang.String PARAM_MD5
```
    See Also:
    
    Constant Field Values
  - parent
```
protected final FSRL parent
```
  - path
```
protected final java.lang.String path
```
- Constructor Detail
  - FSRL
```
protected FSRL(FSRL parent,
               java.lang.String path)
```
    Protected constructor called by static factory methods such as fromString(String) or methods that return a new instance such as withPath(String).
    
    Parameters:
    
    parent - FSRL parent, null if this instance is root FSRLRoot
    
    path - String path, meaning dependent on context
  - FSRL
```
protected FSRL(FSRL parent,
               java.lang.String path,
               java.lang.String md5)
```
    Protected constructor called by static factory methods such as fromString(String) or methods that return a new instance such as withPath(String).
    
    Parameters:
    
    parent - FSRL parent, null if this instance is root FSRLRoot
    
    path - String path, meaning dependent on context
    
    md5 - hex string with the md5 hash of the file this FSRL points to, null ok.
- Method Detail
  - fromString
```
public static FSRL fromString(java.lang.String fsrlStr)
                       throws java.net.MalformedURLException
```
    Creates a FSRL from a raw string. The parent portions of the FSRL are not intern()'d so will not be shared with other FSRL instances.
    See fromPartString(FSRL, String) for details of character encoding fixups.
    
    Parameters:
    
    fsrlStr - something like "fstype://path/path|fs2type://path2/path2|etc://etc/etc"
    
    Returns:
    
    new FSRL instance, never null
    
    Throws:
    
    java.net.MalformedURLException - if empty string or bad format
  - fromString
```
public static FSRL fromString(FSRL parent,
                              java.lang.String fsrlStr)
                       throws java.net.MalformedURLException
```
    Creates a FSRL from a raw string.
    See fromPartString(FSRL, String) for details of character encoding fixups.
    
    Parameters:
    
    parent - Parent FSRL
    
    fsrlStr - something like "fstype://path/path|fs2type://path2/path2|etc://etc/etc"
    
    Returns:
    
    new FSRL instance, never null
    
    Throws:
    
    java.net.MalformedURLException - if empty string or bad format
  - getFS
```
public FSRLRoot getFS()
```
    Returns the FSRLRoot object that represents the entire filesystem for this FSRL.
    Never returns NULL, and calling getFS() on a FSRLRoot object returns itself.
    
    Returns:
    
    FSRLRoot instance that is the parent of this FSRL, never null.
  - getNestingDepth
```
public int getNestingDepth()
```
    Returns the number of FSRLRoots there are in this FSRL.
    A single level FSRL such as "file://path" will return 1.
    A two level FSRL such as "file://path|subfs://path2" will return 2.
    etc.
    
    Returns:
    
    number of levels in this FSRL, min value returned is 1.
  - getPath
```
public java.lang.String getPath()
```
    Returns the full path/filename of this FSRL. Does not include parent filesystem path or info.
    "file://path|subfs://subpath/blah" returns "/subpath/blah"
    May return null if this instance is a FSRLRoot.
    
    Returns:
    
    string path and filename of this object. Null if this FSRL is a FSRLRoot.
  - getName
```
public java.lang.String getName()
```
    Returns the name portion of this FSRL's path, everything after the last '/'
    "file://path/name.ext" returns "name.ext"
    
    Returns:
    
    name portion of this FSRL path, or null if path is null also.
  - getName
```
public java.lang.String getName(int nestedDepth)
                         throws java.io.IOException
```
    Returns the name portion of the FSRL part at parent depth nestedDepth, where 0 is ourself (equiv to just calling getName(), 1 is the parent container's name, etc.
    
    Parameters:
    
    nestedDepth - relative parent index of FSRL part to query, 0 == this instance.
    
    Returns:
    
    name portion of the path of the specified FSRL part.
    
    Throws:
    
    java.io.IOException - if nestedDepth is larger than number of FSRL parent parts.
  - getMD5
```
public java.lang.String getMD5()
```
    Returns the MD5 string associated with this file.
    NULL if no MD5 value present.
    
    Returns:
    
    md5 string associated with this file object, or null if not present.
  - withMD5
```
public FSRL withMD5(java.lang.String newMD5)
```
    Creates a new FSRL instance, using the same information as this instance, but with a new MD5 value.
    
    Parameters:
    
    newMD5 - string md5
    
    Returns:
    
    new FSRL instance with the same path and the specified md5 value.
  - withPath
```
public FSRL withPath(java.lang.String newpath)
```
    Creates a new FSRL instance, using the same FSRLRoot as this instance, but with a new path.
    See also appendPath(String).
    
    Parameters:
    
    newpath - string path
    
    Returns:
    
    new FSRL instance with the specified path.
  - withPath
```
public FSRL withPath(FSRL copyPath)
```
    Creates a new FSRL instance using the same path and other metadata present in the copyPath instance.
    Used when re-root'ing a FSRL path onto another parent object (usually during intern()'ing)
    
    Parameters:
    
    copyPath -
    
    Returns:
    
    new FSRL instance
  - appendPath
```
public FSRL appendPath(java.lang.String relPath)
```
    Creates a new FSRL instance, using the same FSRLRoot as this instance, combining the current path with the relPath value.
    
    Parameters:
    
    relPath -
    
    Returns:
    
    new FSRL instance with additional path appended.
  - makeNested
```
public FSRLRoot makeNested(java.lang.String fstype)
```
    Creates a new FSRLRoot instance that is a child of this FSRL.
    See FSRLRoot.nestedFS(FSRL, FSRLRoot) and FSRLRoot.nestedFS(FSRL, String).
    
    Parameters:
    
    fstype - file system type string.
    
    Returns:
    
    new FSRLRoot instance
  - toString
```
public java.lang.String toString()
```
    Returns a string containing the full FSRL.
    Example: "file://path|subfs://blah?MD5=1234567"
    
    Overrides:
    
    toString in class java.lang.Object
    
    Returns:
    
    string with full FSRL
  - toPrettyString
```
public java.lang.String toPrettyString()
```
    Returns a string containing the full FSRL, excluding MD5 portions.
    
    Returns:
    
    string with full FSRL, excluding MD5 portions.
  - toPrettyFullpathString
```
public java.lang.String toPrettyFullpathString()
```
    Returns a string containing the full FSRL, without FS "fstype://" portions
    Example:
    "fsrl://path/filename?MD5=1234|subfsrl://subpath/subfile"
    will result in
    "path/filename|subpath/subfile".
    
    Returns:
    
    formatted string such as: "path/filename|subpath/subfile"
  - appendToStringBuilder
```
protected void appendToStringBuilder(java.lang.StringBuilder sb,
                                     boolean recurse,
                                     boolean includeParams,
                                     boolean includeFSRoot)
```
  - toStringPart
```
public java.lang.String toStringPart()
```
    Returns a string containing just the current FSRL protocol and path.
    Example: "file://path|subfs://blah?MD5=123456" returns "subfs://blah?MD5=123456"
    
    Returns:
    
    string containing just the current FSRL protocol and path.
  - split
```
public java.util.List<FSRL> split()
```
    Splits a FSRL into a List, with each element pointing to each level of the full FSRL.
    Example: "file://path|subfs://blah|subfs2://blah2"
    Produces a list of 3 elements:
    "file://path"
    "file://path|subfs://blah"
    "file://path|subfs://blah|subfs2://blah2"
    
    Returns:
    
    List of FSRL elements pointing to each level of this FSRL.
  - isEquivalent
```
public boolean isEquivalent(java.lang.String fsrlStr)
```
    Returns true if the two FSRLs are the same, excluding any MD5 values.
    
    Parameters:
    
    fsrlStr - string-ified FSRL
    
    Returns:
    
    boolean true if this instance is the same as the specified string-ified fsrl, ignoring any md5 values.
  - isEquivalent
```
public boolean isEquivalent(FSRL other)
```
    Returns true if the two FSRLs are the same, excluding any MD5 values.
    
    Parameters:
    
    other - FSRL to compare with
    
    Returns:
    
    boolean true if this instance is the same as the specified FSRL, ignoring any md5 values.
  - isDescendantOf
```
public boolean isDescendantOf(FSRL potentialParent)
```
    Returns true if this object is a child or descendant of the specified potentialParent parameter.
    
    Parameters:
    
    potentialParent - FSRL to test against
    
    Returns:
    
    boolean true if the specified FSRL is a parent (ignoring md5 hashes) of this instance.
  - hashCode
```
public int hashCode()
```
    Overrides:
    
    hashCode in class java.lang.Object
  - equals
```
public boolean equals(java.lang.Object obj)
```
    Overrides:
    
    equals in class java.lang.Object

Modifier and Type	Field	Description
`static java.lang.String`	`PARAM_MD5`
`protected FSRL`	`parent`
`protected java.lang.String`	`path`

Class FSRL

Field Summary

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

PARAM_MD5

parent

path

Constructor Detail

FSRL

FSRL

Method Detail

fromString

fromString

getFS

getNestingDepth

getPath

getName

getName

getMD5

withMD5

withPath

withPath

appendPath

makeNested

toString

toPrettyString

toPrettyFullpathString

appendToStringBuilder

toStringPart

split

isEquivalent

isEquivalent

isDescendantOf

hashCode

equals