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## org.eclipse.birt.report.model.api
Interface IResourceLocator

All Known Implementing Classes:
  DefaultResourceLocator

    public interface IResourceLocator

Implements this interface to provide a custom file search algorithm. This class defines the file search algorithm used to locate files referenced in the design. For example, when parsing a design file and a library is encountered, a file locator will be used to locate the library. This interface is implemented differently for each environment. For example, the GUI might have its own file search requirement, while the deployment environment in application server has another.

The default file locator is ``DefaultResourceLocator``.

The customized file search must be installed before opening designs. Set the file locator using `SessionHandle.setResourceLocator(IResourceLocator)` method.

Field Summary
`static int` | `CASCADING_STYLE_SHEET` The type of the cascading style sheet to search.
`static java.lang.String` | `FRAGMENT_RESOURCE_HOST` The host name of the fragments where inner resources are located.
`static int` | `IMAGE` The type of the images to search
`static int` | `JAR_FILE` The type for the jar file.
`static int` | `LIBRARY` The type of the libraries to search
`static int` | `MESSAGE_FILE` The type for the message file.
`static int` | `OTHERS` The other types.

Method Summary
`java.net.URL` | `findResource(ModuleHandle moduleHandle, java.lang.String filename, int type)` Searches the file by the given file name.

Field Detail

### FRAGMENT_RESOURCE_HOST

    static final java.lang.String FRAGMENT_RESOURCE_HOST

  The host name of the fragments where inner resources are located.

  See Also:
    Constant Field Values

### IMAGE

    static final int IMAGE

  The type of the images to search

  See Also:
    Constant Field Values

### LIBRARY

    static final int LIBRARY

  The type of the libraries to search

  See Also:
    Constant Field Values

### CASCADING_STYLE_SHEET

    static final int CASCADING_STYLE_SHEET

  The type of the cascading style sheet to search.

  See Also:
    Constant Field Values

### JAR_FILE

    static final int JAR_FILE

  The type for the jar file. Includes .jar type.

  See Also:
    Constant Field Values

### MESSAGE_FILE

    static final int MESSAGE_FILE

  The type for the message file.

  See Also:
    Constant Field Values

### OTHERS

    static final int OTHERS

  The other types.

  See Also:
    Constant Field Values

Method Detail

### findResource

    java.net.URL findResource(ModuleHandle moduleHandle,
                              java.lang.String filename,
                              int type)

  Searches the file by the given file name. The actual search algorithm will be different in different environment. The file type is just helpful when different file searching steps for different files are required. Because new file type will be added if design file includes new file, the default searching steps are encouraged for unknown file type to improve robustness.

  Parameters:
    `moduleHandle` - The module to tell the search context. This could be null if the search algorithm does not need the design. It can be the instance of one of `ReportDesignHandle` and `LibraryHandle`.
    `filename` - The file name to be searched. This could be an absolute path or a relative path.
    `type` - The type of the file to search. The value must be one of `IMAGE`,`LIBRARY` , `CASCADING_STYLE_SHEET` and `MESSAGEFILE`.
  Returns:
    The `URL` object. `null` if the file can not be found.

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