Started a major refactoring: removed terminal.web, added terminal.gwt.server. Refactoring is not even nearly complete, but can already replace old web terminal implementation

svn changeset:1864/svn branch:trunk

1 files changed, 0 insertions, 670 deletions

diff --git a/src/com/itmill/toolkit/terminal/web/UIDLTransformer.java b/src/com/itmill/toolkit/terminal/web/UIDLTransformer.java
deleted file mode 100644
index 694f068045..0000000000
--- a/src/com/itmill/toolkit/terminal/web/UIDLTransformer.java
+++ /dev/null
@@ -1,670 +0,0 @@
-/* *************************************************************************
- 
- IT Mill Toolkit 
-
- Development of Browser User Interfaces Made Easy
-
- Copyright (C) 2000-2006 IT Mill Ltd
- 
- *************************************************************************
-
- This product is distributed under commercial license that can be found
- from the product package on license.pdf. Use of this product might 
- require purchasing a commercial license from IT Mill Ltd. For guidelines 
- on usage, see licensing-guidelines.html
-
- *************************************************************************
- 
- For more information, contact:
- 
- IT Mill Ltd                           phone: +358 2 4802 7180
- Ruukinkatu 2-4                        fax:   +358 2 4802 7181
- 20540, Turku                          email:  info@itmill.com
- Finland                               company www: www.itmill.com
- 
- Primary source for information and releases: www.itmill.com
-
- ********************************************************************** */
-
-package com.itmill.toolkit.terminal.web;
-
-import org.xml.sax.InputSource;
-import org.xml.sax.SAXException;
-import org.xml.sax.SAXParseException;
-import org.xml.sax.XMLReader;
-import org.xml.sax.helpers.XMLReaderFactory;
-
-import com.itmill.toolkit.terminal.PaintException;
-
-import java.io.BufferedOutputStream;
-import java.io.IOException;
-import java.io.OutputStream;
-import java.io.StringReader;
-import java.util.Collection;
-import java.util.LinkedList;
-import java.util.Hashtable;
-import java.util.Iterator;
-
-import javax.xml.transform.sax.SAXSource;
-import javax.xml.transform.stream.StreamResult;
-import javax.xml.transform.ErrorListener;
-import javax.xml.transform.SourceLocator;
-import javax.xml.transform.OutputKeys;
-
-/**
- * Class implementing the UIDLTransformer.
- * 
- * The transformer should not be created directly; it should be contructed using
- * <code>getTransformer</code> provided by <code>UIDLTransformerFactory</code>.
- * 
- * After the transform has been done, the transformer can be recycled with
- * <code>releaseTransformer</code> by <code>UIDLTransformerFactory</code>.
- * 
- * @author IT Mill Ltd.
- * @version
- * @VERSION@
- * @since 3.0
- */
-
-public class UIDLTransformer {
-
-	/**
-	 * XSLT factory.
-	 */
-	protected static javax.xml.transform.TransformerFactory xsltFactory;
-	static {
-		xsltFactory = javax.xml.transform.TransformerFactory.newInstance();
-		if (xsltFactory == null)
-			throw new RuntimeException("Could not instantiate "
-					+ "transformer factory. Maybe XSLT processor is "
-					+ "not included in classpath.");
-	}
-
-	/**
-	 * Source of the transform containing UIDL.
-	 */
-	private WebPaintTarget paintTarget;
-
-	/**
-	 * Holds the type of the transformer.
-	 */
-	private UIDLTransformerType transformerType;
-
-	/**
-	 * Prepared XSLT transformer for UIDL transformations.
-	 */
-	private javax.xml.transform.Transformer uidlTransformer;
-
-	/**
-	 * Error handled used.
-	 */
-	private TransformerErrorHandler errorHandler;
-
-	/**
-	 * Theme repository used for late error reporting.
-	 */
-	private ThemeSource themeSource;
-
-	private ApplicationServlet webAdapterServlet;
-
-	/**
-	 * UIDLTransformer constructor.
-	 * 
-	 * @param type
-	 *            the Type of the transformer.
-	 * @param themes
-	 *            the theme implemented by the transformer.
-	 * @param webAdapterServlet
-	 *            the Adapter servlet.
-	 * @throws UIDLTransformerException
-	 *             UIDLTransformer exception is thrown, if the transform can not
-	 *             be created.
-	 */
-	public UIDLTransformer(UIDLTransformerType type, ThemeSource themes,
-			ApplicationServlet webAdapterServlet)
-			throws UIDLTransformerException {
-		this.transformerType = type;
-		this.themeSource = themes;
-		this.webAdapterServlet = webAdapterServlet;
-
-		// Registers the error handler
-		errorHandler = new TransformerErrorHandler();
-		xsltFactory.setErrorListener(errorHandler);
-
-		try {
-
-			// Creates XML Reader to be used by
-			// XSLReader as the actual parser object.
-			XMLReader parser = XMLReaderFactory.createXMLReader();
-
-			// Creates XML reader for concatenating
-			// multiple XSL files as one.
-
-			XMLReader xmlReader = new XSLReader(parser, themes.getXSLStreams(
-					type.getTheme(), type.getWebBrowser()));
-
-			xmlReader.setErrorHandler(errorHandler);
-
-			// Creates own SAXSource using a dummy inputSource.
-			SAXSource source = new SAXSource(xmlReader, new InputSource());
-			uidlTransformer = xsltFactory.newTransformer(source);
-
-			if (uidlTransformer != null) {
-
-				// Registers transformer error handler
-				uidlTransformer.setErrorListener(errorHandler);
-
-				// Ensures HTML output
-				uidlTransformer.setOutputProperty(OutputKeys.METHOD, "html");
-
-				// Ensures no indent
-				uidlTransformer.setOutputProperty(OutputKeys.INDENT, "no");
-			}
-
-			// Checks if transform itself failed, meaning either
-			// UIDL error or error in XSL/T semantics (like XPath)
-			if (errorHandler.hasFatalErrors()) {
-				throw new UIDLTransformerException(
-						"XSL Transformer creation failed", errorHandler
-								.getFirstFatalError(), errorHandler
-								.getUIDLErrorReport()
-								+ "<br /><br />"
-								+ errorHandler.getXSLErrorReport(themeSource,
-										transformerType));
-			}
-
-		} catch (Exception e) {
-			// Pass the new XHTML coded error forwards
-			throw new UIDLTransformerException(e.toString(), e, errorHandler
-					.getXSLErrorReport(themeSource, transformerType));
-		}
-	}
-
-	/**
-	 * Gets the type of the transformer.
-	 * 
-	 * @return the Type of the transformer.
-	 */
-	public UIDLTransformerType getTransformerType() {
-		return this.transformerType;
-	}
-
-	/**
-	 * Attaches the output stream to transformer and get corresponding
-	 * UIDLStream for writing UI description language trough transform to given
-	 * output.
-	 * 
-	 * @param variableMap
-	 *            the variable map used for UIDL creation.
-	 * @return returns UI description language stream, that can be used for
-	 *         writing UIDL to transformer.
-	 */
-	public WebPaintTarget getPaintTarget(HttpVariableMap variableMap) {
-
-		try {
-			paintTarget = new WebPaintTarget(variableMap, transformerType,
-					webAdapterServlet, transformerType.getTheme());
-		} catch (PaintException e) {
-			throw new IllegalArgumentException(
-					"Failed to instantiate new WebPaintTarget: " + e);
-		}
-		return paintTarget;
-	}
-
-	/**
-	 * Resets the transformer, before it can be used again. This also interrupts
-	 * any ongoing transform and thus should not be called before the transform
-	 * is ready. This is automatically called by the UIDLTransformFactory, when
-	 * the UIDLTransformer has been released.
-	 * 
-	 * @see UIDLTransformerFactory#releaseTransformer(UIDLTransformer)
-	 */
-	protected void reset() {
-		if (paintTarget != null) {
-			try {
-				paintTarget.close();
-			} catch (PaintException e) {
-				// Ignore this exception
-			}
-			paintTarget = null;
-		}
-		if (errorHandler != null)
-			errorHandler.clear();
-	}
-
-	/**
-	 * Transforms the UIDL to HTML and output to the OutputStream.
-	 * 
-	 * @param outputStream
-	 *            the output stream to render to.
-	 * @throws UIDLTransformerException
-	 *             UIDLTransformer exception is thrown, if the transform can not
-	 *             be created.
-	 */
-	public void transform(OutputStream outputStream)
-			throws UIDLTransformerException {
-
-		StreamResult result = new StreamResult(new BufferedOutputStream(
-				outputStream));
-
-		// XSL Transform
-		try {
-			InputSource uidl = new InputSource(new StringReader(paintTarget
-					.getUIDL()));
-			XMLReader reader = org.xml.sax.helpers.XMLReaderFactory
-					.createXMLReader();
-			reader.setErrorHandler(this.errorHandler);
-
-			// Validates if requested. We validate the UIDL separately,
-			// toget the SAXExceptions instead of TransformerExceptions.
-			// This is required to get the line numbers right.
-			/*
-			 * FIXME: Disable due abnormalities in DTD handling. if
-			 * (webAdapterServlet.isDebugMode()) { reader.setFeature(
-			 * "http://xml.org/sax/features/validation", true);
-			 * reader.parse(uidl); uidl = new InputSource(new
-			 * StringReader(paintTarget.getUIDL())); }
-			 */
-			SAXSource source = new SAXSource(reader, uidl);
-
-			// TODO HTML mode under heavy load provides
-			// java.net.SocketException: broken pipe
-			uidlTransformer.transform(source, result);
-		} catch (Exception e) {
-			// XSL parsing failed. Pass the new XHTML coded error forwards
-			throw new UIDLTransformerException(e.toString(), e, errorHandler
-					.getUIDLErrorReport());
-		}
-
-		// Checks if transform itself failed, meaning either
-		// UIDL error or error in XSL/T semantics (like XPath)
-		if (errorHandler.hasFatalErrors()) {
-			throw new UIDLTransformerException("UIDL Transform failed",
-					errorHandler.getFirstFatalError(), errorHandler
-							.getUIDLErrorReport()
-							+ "<br /><br />"
-							+ errorHandler.getXSLErrorReport(themeSource,
-									transformerType));
-		}
-	}
-
-	/**
-	 * 
-	 * 
-	 * 
-	 */
-	protected class TransformerErrorHandler implements ErrorListener,
-			org.xml.sax.ErrorHandler {
-
-		LinkedList errors = new LinkedList();
-
-		LinkedList warnings = new LinkedList();
-
-		LinkedList fatals = new LinkedList();
-
-		Hashtable rowToErrorMap = new Hashtable();
-
-		Hashtable errorToRowMap = new Hashtable();
-
-		/**
-		 * 
-		 * @return
-		 */
-		public boolean hasNoErrors() {
-			return errors.isEmpty() && warnings.isEmpty() && fatals.isEmpty();
-		}
-
-		/**
-		 * 
-		 * @return
-		 */
-		public boolean hasFatalErrors() {
-			return !fatals.isEmpty();
-		}
-
-		/**
-		 * 
-		 * 
-		 */
-		public void clear() {
-			errors.clear();
-			warnings.clear();
-			fatals.clear();
-		}
-
-		/**
-		 * @see java.lang.Object#toString()
-		 */
-		public String toString() {
-			return getHTMLErrors("Fatal Errors", fatals) + "<br />"
-					+ getHTMLErrors("Errors", errors) + "<br />"
-					+ getHTMLErrors("Warnings", warnings) + "<br />";
-		}
-
-		/**
-		 * 
-		 * @param title
-		 * @param l
-		 * @return
-		 */
-		private String getHTMLErrors(String title, LinkedList l) {
-			String r = "";
-			r = "<b>" + title + "</b><br />";
-			if (l.size() > 0) {
-				for (Iterator i = l.iterator(); i.hasNext();) {
-					Exception e = (Exception) i.next();
-					if (e instanceof javax.xml.transform.TransformerException) {
-						Integer line = (Integer) errorToRowMap.get(e);
-						r += " - "
-								+ WebPaintTarget
-										.escapeXML(((javax.xml.transform.TransformerException) e)
-												.getMessage());
-						Throwable cause = ((javax.xml.transform.TransformerException) e)
-								.getException();
-
-						// Append cause if available
-						if (cause != null) {
-							r += ": "
-									+ WebPaintTarget.escapeXML(cause
-											.getMessage());
-						}
-						r += line != null ? " (line:" + line.intValue() + ")"
-								: " (line unknown)";
-						r += "<br />\n";
-					} else {
-						Integer line = (Integer) errorToRowMap.get(e);
-						r += " - " + WebPaintTarget.escapeXML(e.toString());
-						r += line != null ? " (line:" + line.intValue() + ")"
-								: " (line unknown)";
-						r += "<br />\n";
-
-					}
-				}
-			}
-			return r;
-		}
-
-		/**
-		 * @see javax.xml.transform.ErrorListener#error(TransformerException)
-		 */
-		public void error(javax.xml.transform.TransformerException exception) {
-			if (exception != null) {
-				errors.addLast(exception);
-				SourceLocator l = exception.getLocator();
-				if (l != null) {
-					rowToErrorMap.put(new Integer(
-							((XSLReader.XSLStreamLocator) l).getLineNumber()),
-							exception);
-					errorToRowMap.put(exception, new Integer(
-							((XSLReader.XSLStreamLocator) l).getLineNumber()));
-				}
-			}
-		}
-
-		/**
-		 * @see javax.xml.transform.ErrorListener#fatalError(TransformerException)
-		 */
-		public void fatalError(
-				javax.xml.transform.TransformerException exception) {
-			if (exception != null) {
-				fatals.addLast(exception);
-				SourceLocator l = exception.getLocator();
-				if (l != null) {
-					rowToErrorMap
-							.put(new Integer(l.getLineNumber()), exception);
-					errorToRowMap
-							.put(exception, new Integer(l.getLineNumber()));
-				}
-			}
-		}
-
-		/**
-		 * @see javax.xml.transform.ErrorListener#warning(TransformerException)
-		 */
-		public void warning(javax.xml.transform.TransformerException exception) {
-			if (exception != null) {
-				warnings.addLast(exception);
-				SourceLocator l = exception.getLocator();
-				if (l != null) {
-					rowToErrorMap
-							.put(new Integer(l.getLineNumber()), exception);
-					errorToRowMap
-							.put(exception, new Integer(l.getLineNumber()));
-				}
-			}
-		}
-
-		/**
-		 * Gets the formated error report on XSL.
-		 * 
-		 * @param themes
-		 * @param type
-		 */
-		public String getXSLErrorReport(ThemeSource themes,
-				UIDLTransformerType type) {
-
-			// Recreates the XSL for error reporting
-			StringBuffer readBuffer = new StringBuffer();
-			try {
-				Collection c = themes.getXSLStreams(type.getTheme(), type
-						.getWebBrowser());
-				for (Iterator i = c.iterator(); i.hasNext();) {
-
-					java.io.InputStream is = ((ThemeSource.XSLStream) i.next())
-							.getStream();
-					byte[] buffer = new byte[1024];
-					int read = 0;
-					while ((read = is.read(buffer)) >= 0)
-						readBuffer.append(new String(buffer, 0, read));
-				}
-			} catch (IOException ignored) {
-
-			} catch (ThemeSource.ThemeException ignored) {
-
-			}
-
-			String xsl = "XSL Source not avaialable";
-			if (readBuffer != null)
-				xsl = readBuffer.toString();
-
-			StringBuffer sb = new StringBuffer();
-
-			// Print formatted UIDL with errors embedded
-
-			int row = 0;
-			int prev = 0;
-			int index = 0;
-			int errornro = 0;
-			boolean lastLineWasEmpty = false;
-
-			sb.append(toString());
-			sb
-					.append("<font size=\"+1\"><a href=\"#err1\">"
-							+ "Go to first error</a></font>"
-							+ "<table width=\"100%\" style=\"border-left: 1px solid black; "
-							+ "border-right: 1px solid black; border-bottom: "
-							+ "1px solid black; border-top: 1px solid black\""
-							+ " cellpadding=\"0\" cellspacing=\"0\" border=\"0\"><tr>"
-							+ "<th bgcolor=\"#ddddff\" colspan=\"2\">"
-							+ "<font size=\"+2\">XSL</font><br />"
-							+ "</th></tr>\n");
-
-			while ((index = xsl.indexOf('\n', prev)) >= 0) {
-				String line = xsl.substring(prev, index);
-				prev = index + 1;
-				row++;
-
-				Exception exp = (Exception) rowToErrorMap.get(new Integer(row));
-				line = WebPaintTarget.escapeXML(line);
-				boolean isEmpty = (line.length() == 0 || line.equals("\r"));
-
-				// Code beautification : Comment lines
-				line = xmlHighlight(line);
-
-				String head = "";
-				String tail = "";
-
-				if (exp != null) {
-					errornro++;
-					head = "<a name=\"err" + String.valueOf(errornro)
-							+ "\"><table width=\"100%\">"
-							+ "<tr><th bgcolor=\"#ff3030\">"
-							+ exp.getLocalizedMessage() + "</th></tr>"
-							+ "<tr><td bgcolor=\"#ffcccc\">";
-					tail = "</tr><tr><th bgcolor=\"#ff3030\">"
-							+ (errornro > 1 ? "<a href=\"#err"
-									+ String.valueOf(errornro - 1)
-									+ "\">Previous error</a>   " : "")
-							+ "<a href=\"#err" + String.valueOf(errornro + 1)
-							+ "\">Next error</a>" + "</th></tr></table></a>\n";
-				}
-
-				if (!(isEmpty && lastLineWasEmpty))
-					sb
-							.append("<tr"
-									+ ((row % 10) > 4 ? " bgcolor=\"#eeeeff\""
-											: "")
-									+ "><td style=\"border-right: 1px solid gray\">&nbsp;"
-									+ String.valueOf(row) + "&nbsp;</td><td>"
-									+ head + "<nobr>" + line + "</nobr>" + tail
-									+ "</td></tr>\n");
-
-				lastLineWasEmpty = isEmpty;
-
-			}
-
-			sb.append("</table>\n");
-
-			return sb.toString();
-		}
-
-		/**
-		 * Gets the formated error report on UIDL.
-		 * 
-		 * @return the formatted error report.
-		 */
-		public String getUIDLErrorReport() {
-
-			String uidl = "UIDL Source Not Available.";
-			if (paintTarget != null)
-				uidl = paintTarget.getUIDL();
-			StringBuffer sb = new StringBuffer();
-
-			// Prints the formatted UIDL with errors embedded
-			int row = 0;
-			int prev = 0;
-			int index = 0;
-			boolean lastLineWasEmpty = false;
-
-			// Appends the error report
-			sb.append(toString());
-
-			// Appends UIDL
-			sb
-					.append("<table width=\"100%\" style=\"border-left: 1px solid black; "
-							+ "border-right: 1px solid black; border-bottom: "
-							+ "1px solid black; border-top: 1px solid black\""
-							+ " cellpadding=\"0\" cellspacing=\"0\" border=\"0\"><tr>"
-							+ "<th bgcolor=\"#ddddff\" colspan=\"2\">"
-							+ "<font size=\"+2\">UIDL</font><br />"
-							+ "</th></tr>\n");
-
-			while ((index = uidl.indexOf('\n', prev)) >= 0) {
-				String line = uidl.substring(prev, index);
-				prev = index + 1;
-				row++;
-
-				line = WebPaintTarget.escapeXML(line);
-				boolean isEmpty = (line.length() == 0 || line.equals("\r"));
-
-				// Highlight source
-				// line = xmlHighlight(line);
-
-				if (!(isEmpty && lastLineWasEmpty))
-					sb
-							.append("<tr"
-									+ ((row % 10) > 4 ? " bgcolor=\"#eeeeff\""
-											: "")
-									+ "><td style=\"border-right: 1px solid gray\">&nbsp;"
-									+ String.valueOf(row) + "&nbsp;</td><td>"
-									+ "<nobr>" + line + "</nobr>"
-									+ "</td></tr>\n");
-
-				lastLineWasEmpty = isEmpty;
-			}
-
-			sb.append("</table>\n");
-
-			return sb.toString();
-		}
-
-		/**
-		 * Highlights the XML source.
-		 * 
-		 * @param xmlSnippet
-		 * @return
-		 */
-		private String xmlHighlight(String xmlSnippet) {
-			String res = xmlSnippet;
-
-			// Code beautification : Comment lines
-			DebugWindow.replaceAll(res, "&lt;!--",
-					"<SPAN STYLE=\"color: #00dd00\">&lt;!--");
-			res = DebugWindow.replaceAll(res, "--&gt;", "--&gt;</SPAN>");
-
-			// nbsp instead of blanks
-			String l = "&nbsp;";
-			while (res.startsWith(" ")) {
-				l += "&nbsp;";
-				res = res.substring(1, res.length());
-			}
-			res = l + res;
-
-			return res;
-		}
-
-		/**
-		 * Gets the first fatal error.
-		 * 
-		 * @return the fatal error.
-		 */
-		public Throwable getFirstFatalError() {
-			return (Throwable) fatals.iterator().next();
-		}
-
-		/**
-		 * @see org.xml.sax.ErrorHandler#error(SAXParseException)
-		 */
-		public void error(SAXParseException exception) throws SAXException {
-			errors.addLast(exception);
-			rowToErrorMap
-					.put(new Integer(exception.getLineNumber()), exception);
-			errorToRowMap
-					.put(exception, new Integer(exception.getLineNumber()));
-		}
-
-		/**
-		 * @see org.xml.sax.ErrorHandler#fatalError(SAXParseException)
-		 */
-		public void fatalError(SAXParseException exception) throws SAXException {
-			fatals.addLast(exception);
-			rowToErrorMap
-					.put(new Integer(exception.getLineNumber()), exception);
-			errorToRowMap
-					.put(exception, new Integer(exception.getLineNumber()));
-		}
-
-		/**
-		 * @see org.xml.sax.ErrorHandler#warning(SAXParseException)
-		 */
-		public void warning(SAXParseException exception) throws SAXException {
-			warnings.addLast(exception);
-			rowToErrorMap
-					.put(new Integer(exception.getLineNumber()), exception);
-			errorToRowMap
-					.put(exception, new Integer(exception.getLineNumber()));
-		}
-
-	}
-
-}