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Advanced Exporting With JSPs

You can use a JavaScript function for exporting to different formats, display the buttons for one-step export on the toolbar, control user access to different export formats, and customize the warning messages when exporting reports to XML. This topic describes how you can perform advanced exporting using JSPs.

This topic contains the following sections:

• Exporting a Report Using a JavaScript Function
• Customizing Buttons for One-Step Exporting
• Controlling User Access to Different Export Formats
• Customizing Warning Messages

Exporting a Report Using a JavaScript Function

Page Report Studio provides you with a JavaScript function which enables you to open a report or export it in a specified format. You can find this function in the file API.js in <install_root>\public_html\javascript\dhtml, as follows:

function user_oneStepExport(type, options)

The following explains this function's two parameters, type and options.

type - The export format.

• HTML = 0
• PDF = 2
• PS = 3
• RTF = 4
• TEXT = 5
• EXCEL = 6
• XML = 7

options - The values of the options of each format. It is a string array whose member is of the format "key=value". See the options:

• The three options to_ver, to_open, and to_local are mutually exclusive, that is, only one of them should be true, and the rest false. If you set two or three of them to true, Page Report Studio only accepts the first true and treat the rest as false. If you set all three to false, Page Report Studio considers to_open as true.
• In the string array options, the members are separated by commas (","). You can arrange the members in any order, and omit those keys where you want to use the default value. For example, you can define a variable html_options:

  var html_options = ["imagetype=1", "resolution=120", "hyperlink=true", "no_margin=false", "title=hello world"];

  Then, you can use user_oneStepExport(0, html_options) to obtain a URL for exporting a report in HTML.

• Page Report Studio also provides the function user_downloadReport(type, options) whose usage is similar to user_oneStepExport.

Customizing Buttons for One-Step Exporting

Server provides seven buttons for one-step exporting. They are Export to PDF, Export to Excel, Export to RTF, Export to HTML, Export to Text, Export to PS, and Export to XML. By default, the buttons are invisible on the Page Report Studio toolbar. You have to add them to the toolbar by modifying the index.jsp file in <install_root>\public_html\dhtmljsp.

Use the following two API functions to control the buttons:

• public void customizeToolbar(String SessionId, String RptSetId, String toolbarname, int[] buttonId);
  
• public void customizeToolbar(String SessionId, String RptSetId, String toolbarname, int[] buttonId, boolean isVisible);
  

Explanation of these parameters:

• SessionId - session ID, which can be retrieved by DHTMLUtil.getSessionID(request).
• RptSetId - report ID, which can be retrieved by obDHTMLUtil.getRptSetId(request).
• toolbarname - toolbar name, such as "Standard", "Analysis", "View", or user defined ones.
• buttonId[] - toolbar button ID. It is an integer array, so you need define an integer array variant.

  For example: int[] mybuttonid ={DHTMLConstant.TOOLBAR_EXPORTTOPDF, DHTMLConstant.TOOLBAR_EXPORTTOXLS, TMLConstant.BTN_EXPORT_TO_RTF}

  The array elements available for one-step exporting are:

  • DHTMLConstant.TOOLBAR_EXPORTTOPDF
  • DHTMLConstant.TOOLBAR_EXPORTTOXLS
  • DHTMLConstant.TOOLBAR_EXPORTTORTF
  • DHTMLConstant.TOOLBAR_EXPORTTOHTML
  • DHTMLConstant.TOOLBAR_EXPORTTOTEXT
  • DHTMLConstant.TOOLBAR_EXPORTTOPS
  • DHTMLConstant.TOOLBAR_EXPORTTOXML
• isVisible - whether to show the buttons defined with buttonID[]. true -- show, false -- hide. This parameter can be absent, and then the value is true.

For example, if you want to add the Export to HTML button to the Page Report Studio toolbar, then:

1. Open the file index.jsp.
2. Add the code

   int[] temparray = {DHTMLConstant.TOOLBAR_EXPORTTOHTML};
dhtmlConfig.customizeToolbar(SessionID, RptSetId, "Standard", temparray, true);

   before

   //<!-- Tool Bar -->
if(dhtmlConfig.isFeatureEnabled(SessionID, RptSetId, DHTMLConstant.FEATURE_TOOLBAR)){

3. Start Logi Report Server.
4. Run a report in Page Report Studio, and you will see a new button Export to HTML on the toolbar.

To add more than one button to the toolbar area, for example, adding Export to HTML and Export to PDF buttons to the toolbar:

1. Open the file index.jsp.
2. Add the following code

   int[] temparray = {DHTMLConstant.TOOLBAR_EXPORTTOHTML, DHTMLConstant.TOOLBAR_EXPORTTOPDF};
dhtmlConfig.customizeToolbar(SessionID, RptSetId, "Standard", temparray, true);

   before

   //<!-- Tool Bar -->
if(dhtmlConfig.isFeatureEnabled(SessionID, RptSetId, DHTMLConstant.FEATURE_TOOLBAR)){

3. Start Logi Report Server.
4. Run a report in Page Report Studio and you will see the buttons Export to HTML and Export to PDF on the toolbar.
5. Select the added button on the toolbar of the report page, the report will be exported to the corresponding format, using the default values of the format options.

Controlling User Access to Different Export Formats

Page Report Studio introduces an access control ability which can restrict different users to export reports to different formats. It achieved this by passing values to the global variable enableTypes in both customize_panel.jsp and save_result.jsp files in the <install_root>\public_html\dhtmljsp folder. The value of enableTypes should be Integer, and Page Report Studio gives you the following integers to represent the corresponding report output types:

You can specify a value or an array to enableTypes using the integers in the preceding table. Or you can also use the integers which are not mentioned, but if you do so, the Int. values will be ignored, and do not function. That is to say, if you pass the array {1,2,5,9,-2} to enableTypes, 9 and -2 will be ignored and {1,2,5} will work, so PDF, EXCEL, XML formats can be in use.

Assume that there are two users, user1 and user2. When user1 signs in, run a report in Page Report Studio, he can only export the report as PDF and HTML formats. While user2 can export the report as RTF and XML formats when signing in. To realize it, you can use the following codes in customize_panel.jsp or save_result.jsp file:

int[] enableTypes=null;
String UserName=null;
UserName=DHTMLUtil.getUserName(request);
if(UserName.equalsIgnoreCase("user1"))
enableTypes=new int[]{1,0};
if(UserName.equalsIgnoreCase("user2"))
enableTypes=new int[]{4,5};

Customizing Warning Messages

You can customize the warning messages when exporting reports to XML through Page Report Studio. With this function, you can specify what you want to show as a warning message. Server supports the custom warning messages across web browsers.

To customize the warning messages, you need to customize the JSP files using either of the following two methods:

Method 1

1. Open the save_result.jsp file in the <install_root>\public_html\dhtmljsp folder with your favorite editor.
2. Specify the value of customMsgForXML in the save_result.jsp to whatever you want. The value cannot be "" or null.
3. Run a report in Page Report Studio.
4. Select Menu > File > Export to display the Export dialog box.
5. Select XML from the Select Report Result Format drop-down list
6. Modify other properties.
7. Select OK. Server displays a warning message as you have defined.

Method 2

You can also export reports via the Export panel instead of selecting Menu > File > Export. By default, Server hides the panel. So, the following is another way to create custom warning messages:

1. Open the customize_panel.jsp file in the <install_root>\public_html\dhtmljsp folder with your favorite editor.
2. Set the class of panelDIV to visibleMargin to show the Export panel on web browser.
3. Specify the value of customMsgForXML in customize_panel.jsp.
4. Run a report in Page Report Studio, and the Export panel together with the report shows.
5. Select XML from the Select Report Result Format drop-down list
6. You can modify other properties.
7. Select OK. Server displays a warning message as you have defined.

For example, using method2, when you need to export reports as XML, and if you want to show "This is IE Browser" while browser is IE, you need to set panelDIV in customize_panel.jsp file to visibleMargin:

<div id="<%=DHTMLConstant.DHTML_PREFIX%>panelDIV" class="visibleMargin">

And then customize CustomMsgForXML in the same jsp file:

String browserName=request.getHeader("User-Agent");
String customMsgForXML ="This is "+browserName;

Access Logi Report Server via IE, run a report in Page Report Studio, select XML from the Select Report Result Format drop-down list in the Export panel, and select OK. Then a pop-up box will show you "This is IE Browser".

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