sysmodelmgr/com.symbian.smt.gui/src/com/symbian/smt/gui/smtwidgets/SystemDefinitionFileSelectionValidator.java
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/sysmodelmgr/com.symbian.smt.gui/src/com/symbian/smt/gui/smtwidgets/SystemDefinitionFileSelectionValidator.java Thu Mar 11 19:08:43 2010 +0200
@@ -0,0 +1,246 @@
+// Copyright (c) 2008-2009 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:
+// ${file_name}
+//
+//
+
+package com.symbian.smt.gui.smtwidgets;
+
+import java.io.File;
+import java.io.IOException;
+import java.io.InputStream;
+import java.net.MalformedURLException;
+import java.net.URL;
+import java.net.URLConnection;
+import java.util.List;
+
+import javax.xml.parsers.DocumentBuilder;
+import javax.xml.parsers.DocumentBuilderFactory;
+import javax.xml.parsers.ParserConfigurationException;
+
+import org.w3c.dom.Document;
+import org.xml.sax.ErrorHandler;
+import org.xml.sax.SAXException;
+import org.xml.sax.SAXParseException;
+
+import com.symbian.smt.gui.Logger;
+import com.symbian.smt.gui.XmlFileValidator;
+
+/**
+ * @author barbararosi-schwartz
+ *
+ */
+public class SystemDefinitionFileSelectionValidator extends
+ XmlFileValidator implements IXmlFileInputValidator {
+
+ private List<String> sysdefFilenames;
+ private InputStream urlInputStream;
+
+ public SystemDefinitionFileSelectionValidator(List<String> filenames) {
+ super();
+
+ this.sysdefFilenames = filenames;
+ }
+
+ private void closeInputStream() {
+ if (urlInputStream != null) {
+ try {
+ urlInputStream.close();
+ } catch (IOException ignore) {
+ Logger.log(ignore.getMessage(), ignore);
+ }
+ urlInputStream = null;
+ }
+ }
+
+ protected Document createDocument(final String filePath)
+ throws ParserConfigurationException, SAXException, IOException {
+ DocumentBuilderFactory domFactory = DocumentBuilderFactory
+ .newInstance();
+ domFactory.setNamespaceAware(true);
+ domFactory.setValidating(false);
+
+ DocumentBuilder builder = domFactory.newDocumentBuilder();
+
+ ErrorHandler errorHandler = new ErrorHandler() {
+ public void error(SAXParseException exception)
+ throws SAXParseException {
+ throw exception;
+ }
+
+ public void fatalError(SAXParseException exception)
+ throws SAXParseException {
+ throw exception;
+ }
+
+ public void warning(SAXParseException exception)
+ throws SAXParseException {
+ throw exception;
+ }
+ };
+
+ builder.setErrorHandler(errorHandler);
+ Document doc = null;
+
+ try {
+ if (isUrl(filePath)) {
+ if (urlInputStream != null) {
+ doc = builder.parse(urlInputStream);
+ closeInputStream();
+ }
+ } else {
+ doc = builder.parse(filePath);
+ }
+ } catch (InvalidPathException e) {
+ // This cannot happen as it has already been checked while the user
+ // was typing in
+ }
+
+ return doc;
+ }
+
+ private String isFilePathValid(String filePath) {
+ return isFileReadable(filePath);
+ }
+
+ /* (non-Javadoc)
+ * @see com.symbian.smt.gui.smtwidgets.IFileInputValidator#isFileReadable(java.lang.String)
+ */
+ public String isFileReadable(String filePath) {
+ String errorMessage = null;
+ File inFile = new File(filePath);
+
+ if (!inFile.canRead()) {
+ return "Selected file cannot be read.";
+ }
+
+ return errorMessage;
+ }
+
+ /* (non-Javadoc)
+ * @see com.symbian.smt.gui.smtwidgets.IFileInputValidator#isUrl(java.lang.String)
+ */
+ public boolean isUrl(String filePath) throws InvalidPathException {
+ int index = filePath.indexOf(':');
+
+ if (index == -1 || index == 1) {
+ return false;
+ } else if (index > 1) {
+ return true;
+ } else {
+ throw new InvalidPathException("Unexpected file path format.");
+ }
+ }
+
+ /* (non-Javadoc)
+ * @see com.symbian.smt.gui.smtwidgets.IFileInputValidator#isUrlResourceReadable(java.lang.String)
+ */
+ public String isUrlResourceReadable(String filePath) {
+ String errorMessage = null;
+
+ try {
+ URL fileURL = new URL(filePath.trim());
+ URLConnection connection = fileURL.openConnection();
+ String contentType = connection.getContentType();
+
+ if (contentType == null) {
+ return "System definition resource at specified URL cannot be read.";
+ }
+
+ if (!contentType.endsWith("xml")) {
+ return "Specified URL is not an XML document.";
+ }
+
+ urlInputStream = connection.getInputStream();
+
+ if (urlInputStream == null) {
+ errorMessage = "System definition resource at specified URL cannot be read.";
+ }
+ } catch (IllegalArgumentException e) {
+ closeInputStream();
+ errorMessage = "System definition resource at specified URL cannot be read.";
+ } catch (MalformedURLException e) {
+ closeInputStream();
+ errorMessage = "Specified URL is not a valid URL.";
+ } catch (IOException e) {
+ closeInputStream();
+ errorMessage = "System definition resource at specified URL cannot be reached.";
+ }
+
+ return errorMessage;
+ }
+
+ private String isUrlValid(String url) {
+ String errorMessage = null;
+
+ try {
+ URL inputUrl = new URL(url);
+ inputUrl.openConnection();
+ } catch (MalformedURLException e) {
+ closeInputStream();
+ errorMessage = "Specified URL is not a valid URL.";
+ } catch (IOException e) {
+ closeInputStream();
+ errorMessage = "Resource at specified URL cannot be reached.";
+ }
+
+ return errorMessage;
+ }
+
+ /*
+ * @see org.eclipse.jface.dialogs.IInputValidator#isValid(java.lang.String)
+ */
+ public String isValid(String filePath) {
+ if (filePath == null || filePath.length() == 0) {
+ return "";
+ } else {
+ return validateResourceWhileUserTypes(filePath);
+ }
+ }
+
+ /* (non-Javadoc)
+ * @see com.symbian.smt.gui.smtwidgets.IXmlFileInputValidator#isXmlValid(java.lang.String)
+ */
+ public String isXmlValid(String filePath) {
+ return validateXml(filePath);
+ }
+
+ private String validateResourceWhileUserTypes(String filePath) {
+ String errorMessage = null;
+
+ // First check path is not UNC
+ if (filePath.startsWith(File.separator)) {
+ return "UNC paths are not compatible with the System Model Manager";
+ }
+
+ // Then check that filename (path) is not duplicate
+ // by checking name against table
+ if ((sysdefFilenames != null) && (sysdefFilenames.contains(filePath))) {
+ return "The selected file has already been assigned.";
+ }
+
+ // Then check that path is appropriate
+ try {
+ if (isUrl(filePath)) {
+ errorMessage = isUrlValid(filePath);
+ } else {
+ errorMessage = isFilePathValid(filePath);
+ }
+ } catch (InvalidPathException e) {
+ errorMessage = e.getMessage();
+ }
+
+ return errorMessage;
+ }
+}