UrlDataExtractor (PlantUML Servlet 1-SNAPSHOT API)

java.lang.Object
- net.sourceforge.plantuml.servlet.utility.UrlDataExtractor

```
public abstract class UrlDataExtractor
extends Object
```
Utility class to extract the index and diagram source from an URL, e.g., returned by `request.getRequestURI()`.

Constructor Summary

Constructors
Constructor Description

UrlDataExtractor()

Method Summary

All Methods Static Methods Concrete Methods
Modifier and Type	Method	Description
`static String`	`getEncodedDiagram(String url)`	Get encoded diagram source from URL.
`static String`	`getEncodedDiagram(String url, String fallback)`	Get encoded diagram source from URL.
`static int`	`getIndex(String url)`	Get diagram index from URL.
`static int`	`getIndex(String url, int fallback)`	Get diagram index from URL.

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

- Constructor Detail
  - UrlDataExtractor
```
public UrlDataExtractor()
```
- Method Detail
  - getIndex
```
public static int getIndex(String url)
```
    Get diagram index from URL.
    
    Parameters:
    
    url - URL to analyse, e.g., returned by `request.getRequestURI()`
    
    Returns:
    
    if exists diagram index; otherwise -1
  - getIndex
```
public static int getIndex(String url,
                           int fallback)
```
    Get diagram index from URL.
    
    Parameters:
    
    url - URL to analyse, e.g., returned by `request.getRequestURI()`
    
    fallback - fallback index if no index exists in url
    
    Returns:
    
    if exists diagram index; otherwise fallback
  - getEncodedDiagram
```
public static String getEncodedDiagram(String url)
```
    Get encoded diagram source from URL.
    
    Parameters:
    
    url - URL to analyse, e.g., returned by `request.getRequestURI()`
    
    Returns:
    
    if exists diagram index; otherwise `null`
  - getEncodedDiagram
```
public static String getEncodedDiagram(String url,
                                       String fallback)
```
    Get encoded diagram source from URL.
    
    Parameters:
    
    url - URL to analyse, e.g., returned by `request.getRequestURI()`
    
    fallback - fallback if no encoded diagram source exists in url
    
    Returns:
    
    if exists diagram index; otherwise fallback