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Xml session05
 

Xml session05

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  • Introduce the students to the course by asking them what they know about forensics. Next, ask the students what they know about system forensics and why is it required in organizations dependent on IT. This could be a brief discussion of about 5 minutes. Lead the discussion to the objectives of this chapter.
  • Introduce the students to the different types of threats that systems face by: Asking the students to give examples of what they think are environmental and human threats. Asking the students to give instances of what they think are malicious and non-malicious threats. Conclude the discussion on the different types of threats by giving additional examples of malicious and non malicious threats.
  • Introduce the students to the different types of threats that systems face by: Asking the students to give examples of what they think are environmental and human threats. Asking the students to give instances of what they think are malicious and non-malicious threats. Conclude the discussion on the different types of threats by giving additional examples of malicious and non malicious threats.
  • Introduce the students to the different types of threats that systems face by: Asking the students to give examples of what they think are environmental and human threats. Asking the students to give instances of what they think are malicious and non-malicious threats. Conclude the discussion on the different types of threats by giving additional examples of malicious and non malicious threats.
  • Introduce the students to the different types of threats that systems face by: Asking the students to give examples of what they think are environmental and human threats. Asking the students to give instances of what they think are malicious and non-malicious threats. Conclude the discussion on the different types of threats by giving additional examples of malicious and non malicious threats.
  • Hold a two- three minute discussion on the different types of system-related crimes that the students have experienced or heard. At the end of the discussion, give additional examples of system-related crimes.
  • Hold a two- three minute discussion on the different types of system-related crimes that the students have experienced or heard. At the end of the discussion, give additional examples of system-related crimes.
  • Hold a two- three minute discussion on the different types of system-related crimes that the students have experienced or heard. At the end of the discussion, give additional examples of system-related crimes.
  • While explaining the definition of system forensics, ask the students to note the following key words in the definition: Identify Extract Process Analyze Digital and hardware evidence Tell the students that these form an integral aspect of system forensics and would be discussed in detail. Before moving on to the next slide, hold a brief discussion on why is it important for organizations to take the help of system forensics. The discussion should be focused on: The role that system forensics plays in organizations having an IT set up. This discussion will serve as a precursor to the next slide.
  • While explaining the definition of system forensics, ask the students to note the following key words in the definition: Identify Extract Process Analyze Digital and hardware evidence Tell the students that these form an integral aspect of system forensics and would be discussed in detail. Before moving on to the next slide, hold a brief discussion on why is it important for organizations to take the help of system forensics. The discussion should be focused on: The role that system forensics plays in organizations having an IT set up. This discussion will serve as a precursor to the next slide.
  • Elaborate on the role that system forensics plays in an organization, based on the discussion in the previous slide and the information given on this slide.
  • Connect the information given on this slide to the initial discussion held on the different types of system-related crimes.
  • Connect the information given on this slide to the initial discussion held on the different types of system-related crimes.
  • Connect the information given on this slide to the initial discussion held on the different types of system-related crimes.
  • Connect the information given on this slide to the initial discussion held on the different types of system-related crimes.
  • Connect the information given on this slide to the initial discussion held on the different types of system-related crimes.
  • Connect the information given on this slide to the initial discussion held on the different types of system-related crimes.
  • Connect the information given on this slide to the initial discussion held on the different types of system-related crimes.
  • Connect the information given on this slide to the initial discussion held on the different types of system-related crimes.
  • Connect the information given on this slide to the initial discussion held on the different types of system-related crimes.
  • Connect the information given on this slide to the initial discussion held on the different types of system-related crimes.
  • Connect the information given on this slide to the initial discussion held on the different types of system-related crimes.
  • Connect the information given on this slide to the initial discussion held on the different types of system-related crimes.
  • Connect the information given on this slide to the initial discussion held on the different types of system-related crimes.
  • While explaining the definition of system forensics, ask the students to note the following key words in the definition: Identify Extract Process Analyze Digital and hardware evidence Tell the students that these form an integral aspect of system forensics and would be discussed in detail. Before moving on to the next slide, hold a brief discussion on why is it important for organizations to take the help of system forensics. The discussion should be focused on: The role that system forensics plays in organizations having an IT set up. This discussion will serve as a precursor to the next slide.
  • Reiterate the concepts taught earlier by asking the given question.
  • Reiterate the concepts taught earlier by asking the given question.
  • Reiterate the concepts taught earlier by asking the given question.
  • Reiterate the concepts taught earlier by asking the given question.
  • Reiterate the concepts taught earlier by asking the given question.
  • Reiterate the concepts taught earlier by asking the given question.

Xml session05 Xml session05 Presentation Transcript

  • Extensible Markup LanguageObjectives In this session, you will learn to: Transform an XML document through a Cascading Style Sheet Transform an XML document through Extensible Style Sheet Language Ver. 1.0 Session 5 Slide 1 of 33
  • Extensible Markup LanguageIntroducing Cascading Style Sheet A CSS is a text file containing one or more rules or definitions for the style characteristics of a particular element. It controls how tags are formatted in XML and HTML documents. The CSS file can be included in XML documents with the same data structure. Ver. 1.0 Session 5 Slide 2 of 33
  • Extensible Markup LanguageCreating CSS • The syntax for coding a CSS is: elementname specifies the elementname { name of the element. property1: value; property2: value; } Ver. 1.0 Session 5 Slide 3 of 33
  • Extensible Markup LanguageCreating CSS (Contd.) • The syntax for coding a CSS is: property1 and property2 elementname { specify the property names, property1: value; such as font-family, font-size, and color property2: value; } Ver. 1.0 Session 5 Slide 4 of 33
  • Extensible Markup LanguageCreating CSS (Contd.) • The syntax for coding a CSS is: value specifies the property elementname { values for a property name. property1: value; property2: value; } For example, to display the film title in red, you can type the following code in a CSS file: FILM {COLOR: RED} Ver. 1.0 Session 5 Slide 5 of 33
  • Extensible Markup LanguageApplying CSS A CSS can be applied to an XML document using the following syntax: Instructs the browser that the <?xml:stylesheet XML document uses a stylesheet. type="text/css" href="path- name"?> Ver. 1.0 Session 5 Slide 6 of 33
  • Extensible Markup LanguageApplying CSS (Contd.) A CSS can be applied to an XML document using the following syntax: Specifies the type of <?xml:stylesheet formatting that is being used. type="text/css" href="path- name"?> Ver. 1.0 Session 5 Slide 7 of 33
  • Extensible Markup LanguageApplying CSS (Contd.) A CSS can be applied to an XML document using the following syntax: Specifies the name of the <?xml:stylesheet CSS file used to format the XML document. type="text/css" href="path- name"?> Ver. 1.0 Session 5 Slide 8 of 33
  • Extensible Markup LanguageDemo: Creating a CSS Problem Statement: Jim, the XML developer at CyberShoppe, has been asked to display the product details for Cybershoppe in a browser in the following format: The price per unit, description, and quantity on hand for each product should be displayed in teal, with a font size of 10 pts. The product name should be displayed in red, with a font size of 20 pts. It should be displayed in bold. All details should be displayed in the Arial font. Ver. 1.0 Session 5 Slide 9 of 33
  • Extensible Markup LanguageIntroducing XSL CSS does not support the reorder, sort, and display of elements based on a condition. For such advanced formatting, XML supports Extensible Style Sheet Language (XSL). XSL has two parts: XSL Transformations (XSLT) XML Path (XPath) XSL: Contains instructions on how an XML document should be transformed into an HTML or an XHTML document. Uses XPath expressions to extract specific data from an XML document. The XSLT processor transforms the XML document into an HTML or XHTML or into another XML document. Ver. 1.0 Session 5 Slide 10 of 33
  • Extensible Markup LanguageAnalyzing the Working of the XSLT Processor The XSLT processor applies the transformation information to the source document and builds the result tree as shown in the following figure. MSXML Parser XSLT style sheet XSLT tree XSLT Result tree processor XML document Source tree Ver. 1.0 Session 5 Slide 11 of 33
  • Extensible Markup LanguageFormatting Data Using XSLT XSLT provides the following elements to select and format data: stylesheet value-of for-each sort text Ver. 1.0 Session 5 Slide 12 of 33
  • Extensible Markup LanguageFormatting Data Using XSLT (Contd.) XSLT provides the following elements to select and format data: Instructs the browser that the document is a style a stylesheet sheet file. a value-of Is the root element for all XSLT style sheets. a for-each Is written as: <xsl:stylesheet a sort xmlns:xsl= a text "http://www.w3.org/1999/XSL/Transform" version="1.0"> Ver. 1.0 Session 5 Slide 13 of 33
  • Extensible Markup LanguageFormatting Data Using XSLT (Contd.) XSLT provides the following elements to select and format data: a stylesheet a value-of Displays the value of the specified element or a attribute. for-each Follows the syntax: a sort <xsl:value‑of a text select="elementname/attributename"/> Ver. 1.0 Session 5 Slide 14 of 33
  • Extensible Markup LanguageFormatting Data Using XSLT (Contd.) XSLT provides the following elements to select and format data: a stylesheet a value-of a for-each Instructs the XSLT processor to process the information for each instance of the specified pattern. a sort Follows the syntax: a text <xsl:for-each select="pattern"> [action to be performed] </xsl:for-each> Ver. 1.0 Session 5 Slide 15 of 33
  • Extensible Markup LanguageFormatting Data Using XSLT (Contd.) XSLT provides the following elements to select and format data: a stylesheet a value-of a for-each a sort Sorts data based on the values assigned to elements a text and attributes. Follows the syntax: <xsl:sort select="expression" order="ascending | descending" case-order="upper-first | lower-first“ data-type="text | number | qname"/> Ver. 1.0 Session 5 Slide 16 of 33
  • Extensible Markup LanguageFormatting Data Using XSLT (Contd.) XSLT provides the following elements to select and format data: a stylesheet a value-of a for-each a sort a text Generates constant text in the output and displays labels. Follows the syntax: <xsl:text> Text to be displayed as label </xsl:text> Ver. 1.0 Session 5 Slide 17 of 33
  • Extensible Markup LanguageFormatting Data Using XSL Formatting Objects XSL Formatting Objects (XSL-FO): Is an XML-based language that formats XML documents into pages, paragraphs, and lists. Provides various objects and properties that define the formatting of XML objects. Provides a basic document structure that contains the formatting objects and properties. Ver. 1.0 Session 5 Slide 18 of 33
  • Extensible Markup LanguageFormatting Data Using XSL Formatting Objects (Contd.) The following code snippet depicts the structure of an XML document: Is <?xml version="1.0" encoding="ISO-8859-1"?> <fo:root xmlns:fo="http://www.w3.org/1999/XSL/Format"> <fo:layout-master-set> <fo:simple-page-master master-name="A4"> <!-- Page template goes here --> </fo:simple-page-master> </fo:layout-master-set> <fo:page-sequence master-reference="A4"> <!-- Page content goes here --> </fo:page-sequence> </fo:root> Ver. 1.0 Session 5 Slide 19 of 33
  • Extensible Markup LanguageFormatting Data Using XSL Formatting Objects (Contd.) The XSL-FO objects provides a logical layout to an XML document. The content of an XML document can be split into pages. These pages are divided into following four areas: a Regions: Are the topmost areas in the page. a Block areas: Are the block level elements. a Line areas: Contain the text within the block areas. a Inline areas: Are part of line areas. Ver. 1.0 Session 5 Slide 20 of 33
  • Extensible Markup LanguageFormatting Data Using XSL Formatting Objects (Contd.) The XSL-FO properties specifies the type of formatting that can be specified on the XSL-FO objects. Consider the following code-snippet: <fo:simple-page-master master-name="right"> <fo:region-body margin-left="5in" margin-right="2in"/> </fo:simple-page-master> This the namedefines a template with element right. This specifies that the left margin of the template is set to 5 inches. This specifies that the right margin of the template is set to 2 inches. Ver. 1.0 Session 5 Slide 21 of 33
  • Extensible Markup LanguageCreating XSLT Template Rules A template rule: Describes how an XML element and its contents are converted into a specific format for displaying in the browser. Consists of two parts: a A pattern that identifies an XML element in an XML document. a An action or processing code that details the transformation and rendering of the resulting element. XSLT uses two main elements for creating template rules: a template a apply-templates Ver. 1.0 Session 5 Slide 22 of 33
  • Extensible Markup LanguageCreating XSLT Template Rules (Contd.) A template rule: Describes how an XML element and its contents are converted into a specific format for displaying in the browser. Consists of two parts: a A pattern that identifies an XML element in an XML document. a An action or processing code that details the transformation and rendering of the resulting element. XSLT uses two main elements for creating template rules: a template Defines a template for the desired a apply-templates output. Follows the syntax: <xsl:template match="pattern"> [action to be taken] </xsl:template> Ver. 1.0 Session 5 Slide 23 of 33
  • Extensible Markup LanguageCreating XSLT Template Rules (Contd.) A template rule: Describes how an XML element and its contents are converted into a specific format for displaying in the browser. Consists of two parts: a A pattern that identifies an XML element in an XML document. a An action or processing code that details the transformation and rendering of the resulting element. XSLT uses two main elements for creating template rules: a template a apply-templates Instructs the XSLT processor to find an appropriate template and perform the specified tasks on selected elements. Follows the syntax: <xsl:apply‑templates [select="pattern"]> Ver. 1.0 Session 5 Slide 24 of 33
  • Extensible Markup LanguageDemo: Creating an XSLT Style Sheet to Format Data Problem Statement: CyberShoppe needs to display product details, such as product ID, name, and price per unit. The following figure depicts a sample output. The details about the products should be displayed in red. Ver. 1.0 Session 5 Slide 25 of 33
  • Extensible Markup LanguagePractice Questions The various departments of a university store data in different formats. The IT department of the university decides to use XML as the data interchange format to transmit the data between the departments. Which of the following would be the best approach to accomplish the task using XML? a. Devise a common information model and enforce its use by all the departments that need to exchange data. b. Implement a conversion application that can handle the data received from other departments. Ver. 1.0 Session 5 Slide 26 of 33
  • Extensible Markup LanguagePractice Questions (Contd.) c. Use an XSLT style sheet to convert the incoming or outgoing XML document into the format used within the departments. d. Modify the XML schema to use the same content model in all departments. Answer: c. Use an XSLT style sheet to convert the incoming or outgoing XML document into the format used within the departments. Ver. 1.0 Session 5 Slide 27 of 33
  • Extensible Markup LanguagePractice Questions • Which of the following code snippets can be used in an XML document named Test.xml to associate it with a style sheet named Test.css? a. <?xml-stylesheet href="Test.css" type="text/css"?> b. <?xml-stylesheet href="Test.xsl" type="text/css"?> c. <?xmlstylesheet href="Test.css" type="text/xsl"?> d. <xml-stylesheet href="Test.css" type="text/css"/> Answer: a. <?xml-stylesheet href=”Test.css” type=”text/css”?> Ver. 1.0 Session 5 Slide 28 of 33
  • Extensible Markup LanguagePractice Questions Consider the following statements: Statement A: CSS can be used to reorder, add, delete, or perform other operations on elements. Statement B: CSS uses less memory when compared to XSLT. Which of the following is correct about the preceding statements? a. Statement A is True, and Statement B is False. b. Statement A is False, and Statement B is True. c. Both, Statement A and Statement B, are True. d. Both, Statement A and Statement B, are False. Answer: b. Statement A is False, and Statement B is True. Ver. 1.0 Session 5 Slide 29 of 33
  • Extensible Markup LanguagePractice Questions Which element must contain one or more when elements? a. xsl:if b. xsl:for-each c. xsl:sort d. xsl:choose Answer: d. xsl:choose Ver. 1.0 Session 5 Slide 30 of 33
  • Extensible Markup LanguagePractice Questions Consider the following statements: Statement A: XSLT is a superset of the CSS functionality. Statement B: XSLT is an application of XML. Which of the following is correct about the preceding statements? a. Statement A is True, and Statement B is False. b. Statement A is False, and Statement B is True. c. Both, Statement A and Statement B, are True. d. Both, Statement A and Statement B, are False. Answer: c. Both, Statement A and Statement B, are True. Ver. 1.0 Session 5 Slide 31 of 33
  • Extensible Markup LanguageSummary In this session, you learned that: Rendering is the process of formatting and presenting the data in an XML document in different formats. A style sheet is a document that contains the formatting rules for one or several XML documents. The two types of style sheets that can be used with XML documents are:  CSS  XSL  CSS is used to define the style or appearance of an XML document.  XSL is made up of XSLT and XPath.  XSLT is used to display selective elements or attributes, sort data on one or more elements, and process the data based on conditions. Ver. 1.0 Session 5 Slide 32 of 33
  • Extensible Markup LanguageSummary (Contd.)  The XSLT processor applies the transformation information contained in the XSLT style sheet and builds a resultant tree structure, which is then rendered to various targets.  XSLT elements, such as template, apply-templates, sort, for-each, and value-of are used to extract and format data.  XSL-FO provides formatting objects to break XML documents into pages, paragraphs, and lists. The associated properties of the formatting objects allow you to format the XML documents.  A template rule describes how an XML element and its contents are converted into a format that can be displayed in the browser. Ver. 1.0 Session 5 Slide 33 of 33