[Pixelle-commit] SF.net SVN: pixelle: [148] trunk/pixelle/src/com/mebigfatguy/pixelle/ AlgorithmArchiver.java

[<dbr...@us...>]

Revision: 148
          http://pixelle.svn.sourceforge.net/pixelle/?rev=148&view=rev
Author:   dbrosius
Date:     2008-07-06 15:02:11 -0700 (Sun, 06 Jul 2008)

Log Message:
-----------
parse system algorithms

Modified Paths:
--------------
    trunk/pixelle/src/com/mebigfatguy/pixelle/AlgorithmArchiver.java

Modified: trunk/pixelle/src/com/mebigfatguy/pixelle/AlgorithmArchiver.java
===================================================================
--- trunk/pixelle/src/com/mebigfatguy/pixelle/AlgorithmArchiver.java	2008-07-06 21:29:32 UTC (rev 147)
+++ trunk/pixelle/src/com/mebigfatguy/pixelle/AlgorithmArchiver.java	2008-07-06 22:02:11 UTC (rev 148)
@@ -18,13 +18,37 @@
  */
 package com.mebigfatguy.pixelle;
 
+import java.io.IOException;
+import java.io.InputStream;
 import java.util.HashMap;
 import java.util.Map;
 
 import javax.swing.JPopupMenu;
 
+import org.xml.sax.Attributes;
+import org.xml.sax.InputSource;
+import org.xml.sax.SAXException;
+import org.xml.sax.XMLReader;
+import org.xml.sax.helpers.DefaultHandler;
+import org.xml.sax.helpers.XMLReaderFactory;
+
+import com.mebigfatguy.pixelle.utils.Closer;
+
 public class AlgorithmArchiver {
 
+	private static final String SYSTEM_ALGO_XML_PATH = "/com/mebigfatguy/pixelle/resources/algorithms.xml";
+	private static final String SYSTEM_ALGO_XSD_PATH = "/com/mebigfatguy/pixelle/resources/algorithms.xsd";
+	private static final String GROUP = "group";
+	private static final String ALGORITHM = "algorithm";
+	private static final String COMPONENT = "component";
+	private static final String NAME = "name";
+	private static final String RED = "red";
+	private static final String GREEN = "green";
+	private static final String BLUE = "blue";
+	private static final String TRANSPARENCY = "transparency";
+	private static final String SELECTION = "selection";
+	
+	
 	private static AlgorithmArchiver archiver = new AlgorithmArchiver();
 	
 	private Map<String, Map<String, Map<PixelleComponent, String>>> systemAlgorithms;
@@ -33,7 +57,7 @@
 	private AlgorithmArchiver() {
 		systemAlgorithms = new HashMap<String, Map<String, Map<PixelleComponent, String>>>();
 		userAlgorithms = new HashMap<String, Map<String, Map<PixelleComponent, String>>>();
-		
+		loadSystemAlgorithms();
 	}
 	
 	public static AlgorithmArchiver getArchiver() {
@@ -51,4 +75,62 @@
 	public void removeAlgorithm(String group, String name) {
 		
 	}
+	
+	private void loadSystemAlgorithms() {
+		InputStream xmlIs = null;
+		try {
+			xmlIs = AlgorithmArchiver.class.getResourceAsStream(SYSTEM_ALGO_XML_PATH);
+			parseAlgorithms(xmlIs, systemAlgorithms);
+		} catch (Exception e) {
+			e.printStackTrace();
+		} finally {
+			Closer.close(xmlIs);
+		}
+	}
+	
+	private void loadUserAlgorithms() {
+		
+	}
+	
+	private void parseAlgorithms(InputStream is, Map<String, Map<String, Map<PixelleComponent, String>>> algorithms) throws IOException, SAXException {
+		XMLReader r = XMLReaderFactory.createXMLReader();
+		r.setContentHandler(new DefaultHandler() {
+			Map<String, Map<PixelleComponent, String>> currentGroup = null;
+			Map<PixelleComponent, String> currentAlgorithm = null;
+			String currentComponentName = null;
+			
+			@Override
+			public void startElement(String uri, String localName, String qName, Attributes atts) {
+				if (GROUP.equals(localName)) {
+					currentGroup = new HashMap<String, Map<PixelleComponent, String>>();
+					systemAlgorithms.put(atts.getValue(NAME), currentGroup);
+				} else if (ALGORITHM.equals(localName)) {
+					currentAlgorithm = new HashMap<PixelleComponent, String>();
+					currentGroup.put(atts.getValue(NAME), currentAlgorithm);
+				} else if (COMPONENT.equals(localName)) {
+					currentComponentName = atts.getValue(NAME);
+				}
+			}
+			
+			@Override
+			public void characters(char[] c, int start, int offset) {
+				if (currentComponentName != null) {
+					PixelleComponent pc = PixelleComponent.valueOf(currentComponentName.toUpperCase());
+					currentAlgorithm.put(pc, new String(c, start, offset).trim());
+				}
+			}
+			
+			@Override
+			public void endElement(String uri, String localName, String qName) {
+				if (COMPONENT.equals(localName)) {
+					currentComponentName = null;
+				} else if (ALGORITHM.equals(localName)) {
+					currentAlgorithm = null;
+				} else if (GROUP.equals(localName)) {
+					currentGroup = null;
+				}
+			}
+		});
+		r.parse(new InputSource(is));
+	}
 }


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