echopoint.util
Class StyleMerger

java.lang.Object
  echopoint.util.StyleMerger

public class StyleMerger
extends Object

StyleMerger is an Component which alllows you to merge two xml style definitions into a single one, which can then be loaded by echo. We use it in the following way: Our application has a default style which is used for normal installations If we build special versions of our application to a customer, we then add a second stylesheet with only the modifications for that client. On system startup we then merge the two XML styles into one and then load the resulting one.

Author:

a.schild

Constructor Summary

StyleMerger()

Method Summary

protected static org.jdom.Element	findStyleDefinition(org.jdom.Element rootNode, String styleName) Sear this tree for a matching style
protected static String	makeStyleName(org.jdom.Element style) Make up a stylename which respects all attributes to uniquely identify a style.
protected static void	mergeStyle(org.jdom.Element targetStyle, org.jdom.Element partialStyle) Merge two styles.
protected static org.jdom.Document	mergeStyles(org.jdom.Document doc1, org.jdom.Document doc2) Merge the two docs and return the merged one.
static void	mergeXMLStyles(InputStream mainStyles, InputStream patchStyles, OutputStream out)
static void	mergeXMLStyles(Reader mainStyles, Reader patchStyles, Writer out)
static void	mergeXMLStyles(String baseStylesFile, String patchStylesFile, String outFile)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

StyleMerger

public StyleMerger()

Method Detail

mergeXMLStyles

public static void mergeXMLStyles(String baseStylesFile,
                                  String patchStylesFile,
                                  String outFile)
                           throws IOException,
                                  org.jdom.JDOMException

Parameters:

baseStylesFile - File with default styles

patchStylesFile - File which contains the styles to be added/patched

outFile - File with the merged styles

Throws:

IOException

org.jdom.JDOMException

mergeXMLStyles

public static void mergeXMLStyles(Reader mainStyles,
                                  Reader patchStyles,
                                  Writer out)
                           throws IOException,
                                  org.jdom.JDOMException

Parameters:

mainStyles - Reader with with default styles

patchStyles - Reader which contains the styles to be added/patched

out - Output with the merged styles

Throws:

IOException

org.jdom.JDOMException

mergeXMLStyles

public static void mergeXMLStyles(InputStream mainStyles,
                                  InputStream patchStyles,
                                  OutputStream out)
                           throws IOException,
                                  org.jdom.JDOMException

Parameters:

mainStyles - Stream with with default styles

patchStyles - Stream which contains the styles to be added/patched

out - Output with the merged styles

Throws:

IOException

org.jdom.JDOMException

mergeStyles

protected static org.jdom.Document mergeStyles(org.jdom.Document doc1,
                                               org.jdom.Document doc2)

Merge the two docs and return the merged one.

Parameters:

doc1 -

doc2 -

Returns:

doc1 is containing the merged document

makeStyleName

protected static String makeStyleName(org.jdom.Element style)

Make up a stylename which respects all attributes to uniquely identify a style.

Parameters:

style -

Returns:

findStyleDefinition

protected static org.jdom.Element findStyleDefinition(org.jdom.Element rootNode,
                                                      String styleName)

Sear this tree for a matching style

Parameters:

rootNode -

styleName -

Returns:

mergeStyle

protected static void mergeStyle(org.jdom.Element targetStyle,
                                 org.jdom.Element partialStyle)

Merge two styles. All attribuets/values found in partialStyle are replacing existing values in targetStyle. If no such attributes exist in targetStyle, then we add them

Parameters:

targetStyle -

partialStyle -