themeinstaller/source/src/com/nokia/tools/themeinstaller/cssparser/CSSParser.java
branchRCL_3
changeset 18 04b7640f6fb5
parent 0 05da4621cfb2
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/themeinstaller/source/src/com/nokia/tools/themeinstaller/cssparser/CSSParser.java	Wed Sep 01 12:32:13 2010 +0100
@@ -0,0 +1,130 @@
+/*
+* Copyright (c) 2007 Nokia Corporation and/or its subsidiary(-ies). 
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of "Eclipse Public License v1.0"
+* which accompanies this distribution, and is available
+* at the URL "http://www.eclipse.org/legal/epl-v10.html".
+*
+* Initial Contributors:
+* Nokia Corporation - initial contribution.
+*
+* Contributors:
+*
+* Description:  This class parses CSS file to DOM document
+ *
+*/
+
+
+package com.nokia.tools.themeinstaller.cssparser;
+
+import java.io.File;
+import java.io.FileReader;
+import java.io.IOException;
+import java.io.Reader;
+
+import org.w3c.css.sac.InputSource;
+import org.w3c.css.sac.Parser;
+import org.w3c.css.sac.helpers.ParserFactory;
+import org.w3c.dom.Document;
+
+import com.nokia.tools.themeinstaller.logger.LogWriter;
+import com.nokia.tools.themeinstaller.odtconverter.ParseOperation;
+import com.nokia.tools.themeinstaller.odtconverter.IParseOperationListener;
+import com.nokia.tools.themeinstaller.odtconverter.ODTException;
+
+/**
+ * CSSParser parses the CSS File and uses CSSHandler to apply the
+ * parsed style rules to DOM Document.
+ */
+public class CSSParser extends ParseOperation implements Runnable
+    {
+
+    /** The Constant CSS_PARSER_SYSTEM_VALUE. */
+    private static final String CSS_PARSER_SYSTEM_VALUE = "org.w3c.css.sac.parser";
+
+    /** The Constant CSS_PARSER_SYSTEM_KEY. */
+    private static final String CSS_PARSER_SYSTEM_KEY = "org.apache.batik.css.parser.Parser";
+
+    /** CSS file name */
+    private String iFileName;
+
+    /** The CSS handler. */
+    private CSSHandler iCSSHandler;
+
+    /** The CSS parser. */
+    private Parser iParser;
+
+    /**
+     * Instantiates a new CSS parser.
+     *
+     * @param aFileName The CSS file name
+     */
+    public CSSParser( String aFileName )
+        {
+        iFileName = aFileName;
+        ParserFactory factory = new ParserFactory();
+        iCSSHandler = new CSSHandler();
+
+        // Store the value-key pair of the used parser in the System
+        // environment(JVM)
+        System.setProperty( CSS_PARSER_SYSTEM_VALUE, CSS_PARSER_SYSTEM_KEY );
+        try
+            {
+            iParser = factory.makeParser();
+            }
+        catch ( Exception e )
+            {
+            throw new IllegalStateException( "Could not load CSS parser" );
+            }
+        }
+
+    public void setDocument( Document aDocument )
+        {
+        iDOMDocument = aDocument;
+        }
+
+    /**
+     * Run the CSS parse operation.
+     */
+    public void run()
+        {
+        int error = IParseOperationListener.OPERATION_SUCCESSFUL;
+        String reason = "";
+
+        try
+            {
+            iCSSHandler.setDocument( iDOMDocument );
+
+            File mainCSS = new File( iFileName );
+            Reader r = new FileReader( mainCSS );
+            // Tell CSS handler the directory for relative import paths,
+            // that is, the path of the Main CSS file
+            iCSSHandler.setImportDirectory( mainCSS.getParent() );
+            InputSource is = new InputSource( r );
+            iParser.setDocumentHandler( iCSSHandler );
+            LogWriter.getInstance().logInfo(
+                    this.getClass().getSimpleName() + ": Parsing CSS "
+                            + iFileName );
+            iParser.parseStyleSheet( is );
+            iDOMDocument = iCSSHandler.getDocument();
+            }
+        catch ( Exception e )
+            {
+            reason = e.getMessage();
+            error = IParseOperationListener.CSS_PARSER_ERROR;
+            }
+
+        super.operationCompleted( error, reason );
+        }
+
+    /**
+     * Starts CSS parsing in a new thread.
+     */
+    public void parse() throws IOException, ODTException
+        {
+        Thread thread = new Thread( this );
+        thread.start();
+        }
+
+    }