RenderManagerImpl


1   package fops.business;
2   
3   import fops.spec.RenderManager;
4   
5   import org.apache.fop.apps.XSLTInputHandler;
6   import org.apache.avalon.framework.logger.Logger;
7   import org.apache.fop.apps.Driver;
8   import org.apache.fop.apps.Options;
9   
10  import org.xml.sax.InputSource  ;
11  import org.xml.sax.XMLReader  ;
12  
13  import java.io.*;
14  
15  public class RenderManagerImpl implements RenderManager{
16  
17   /**
18       * renders a HTML fields and Applet contents inputsource
19       * into a PDF file which is rendered directly to the response
20       * object's OutputStream
21       */
22    public byte[] renderFO(boolean noParams,String   DateHTML,String   NameHTML,String   SubjHTML,String   AppletHTML,Logger log) throws Exception   {
23           
24          ByteArrayOutputStream out = new ByteArrayOutputStream();
25          
26                  
27          
28          StringReader str;
29          if(noParams)
30              str = defaultText();
31          else
32              str = inputText(DateHTML,NameHTML,SubjHTML,AppletHTML);
33          Driver driver = new Driver(new InputSource  (str), out);
34          driver.setLogger(log);
35          driver.setRenderer(Driver.RENDER_PDF);
36  
37          driver.run();
38  
39          byte[] content = out.toByteArray();
40          
41          return content;
42          
43             }
44  
45    public byte[] renderXML(String   xmlParam,String   xslParam,Logger log) throws Exception   {
46          
47          XSLTInputHandler input = new XSLTInputHandler(new File(xmlParam), new File(xslParam));
48          ByteArrayOutputStream out = new ByteArrayOutputStream();
49  
50          
51          Driver driver = new Driver();
52          driver.setLogger(log);
53          driver.setRenderer(Driver.RENDER_PDF);
54          driver.setOutputStream(out);
55          driver.render(input.getParser(), input.getInputSource());
56  
57          byte[] content = out.toByteArray();
58          
59          return content;
60          
61          
62     }
63  
64     /**
65      * renders an FO inputsource into a PDF file which is rendered
66      * directly to the response object's OutputStream
67      */
68     public byte[] renderFOFile(String   foParam,Logger log) throws Exception   {
69          ByteArrayOutputStream out = new ByteArrayOutputStream();
70          FileInputStream foFile = new FileInputStream(foParam);
71          
72          Driver driver = new Driver();
73          driver.setLogger(log);
74          driver.setRenderer(Driver.RENDER_PDF);
75          driver.setInputSource(new InputSource  (foFile));
76          driver.setOutputStream(out);
77          driver.run();
78  
79          byte[] content = out.toByteArray();
80          
81          return content;
82          
83          
84     }
85  
86      /**
87       * creates a SAX parser, using the value of org.xml.sax.parser
88       * defaulting to org.apache.xerces.parsers.SAXParser
89       *
90       * @return the created SAX parser
91       */
92     static XMLReader   createParser() throws Exception   {
93          String   parserClassName = System.getProperty("org.xml.sax.parser");
94  
95          if (parserClassName == null) {
96              parserClassName = "org.apache.xerces.parsers.SAXParser";
97          }
98          return (XMLReader  ) Class.forName(parserClassName).newInstance();
99     }
100 
101     /**
102      * Method inputText
103      * Creates a XSLFO file with inserted parameters from HTML.
104      * Noncomptibility: FOP 0.19 -     <fo:page-sequence master-name="simple">
105      *                  FOP 0.20.4 -   <fo:page-sequence master-reference="simple">
106      * @return   a StringReader
107      *
108      */
109     public StringReader inputText(String   DateHTML,String   NameHTML,String   SubjHTML,String   AppletHTML) {
110       String   text = new String  ();
111       text += "<?xml version=\"1.0\" encoding=\"utf-8\"?>\n";
112       text += "<fo:root xmlns:fo=\"http://www.w3.org/1999/XSL/Format\">\n";
113       text += "  <fo:layout-master-set>\n";
114       text += "     <fo:simple-page-master master-name=\"simple\" page-height=\"29.7cm\" page-width=\"21cm\" " + "margin-top=\"1cm\" margin-bottom=\"2cm\" margin-left=\"2.5cm\" margin-right=\"2.5cm\">\n";
115       text += "        <fo:region-body margin-top=\"3cm\"/>\n";
116       text += "        <fo:region-before extent=\"3cm\"/>\n";
117       text += "        <fo:region-after extent=\"1.5cm\"/>\n";
118       text += "     </fo:simple-page-master>\n";
119       text += "  </fo:layout-master-set>\n";
120       text += "  <fo:page-sequence master-reference=\"simple\">\n";
121       text += "     <fo:flow flow-name=\"xsl-region-body\">\n";
122       text += "        <fo:block font-size=\"18pt\" font-family=\"sans-serif\" line-height=\"24pt\" " + "space-after.optimum=\"15pt\" background-color=\"blue\" color=\"white\" " + "text-align=\"center\" padding-top=\"3pt\">\n";
123       text += "           Demo PDF file from applet \n";
124       text += "        </fo:block>\n";
125       text += "        <fo:table font-family=\"Helvetica\" space-after.optimum=\"20pt\">\n";
126       text += "           <fo:table-column column-width=\"20mm\" />\n";
127       text += "           <fo:table-column column-width=\"150mm\" />\n";
128       text += "           <fo:table-body>\n";
129       text += "              <fo:table-row>\n";
130       text += "                 <fo:table-cell>\n";
131       text += "                       <fo:block color=\"blue\" font-weight=\"bold\">Date:</fo:block>\n";
132       text += "                 </fo:table-cell>\n";
133       text += "                 <fo:table-cell>\n";
134       text += "                    <fo:block>" + DateHTML + "</fo:block>\n";
135       text += "                 </fo:table-cell>\n";
136       text += "              </fo:table-row>\n";
137       text += "              <fo:table-row>\n";
138       text += "                 <fo:table-cell>\n";
139       text += "                    <fo:block color=\"blue\" font-weight=\"bold\">Name:</fo:block>\n";
140       text += "                 </fo:table-cell>\n";
141       text += "                 <fo:table-cell>\n";
142       text += "                    <fo:block>" + NameHTML + "</fo:block>\n";
143       text += "                 </fo:table-cell>\n";
144       text += "              </fo:table-row>\n";
145       text += "              <fo:table-row>\n";
146       text += "                 <fo:table-cell>\n";
147       text += "                    <fo:block color=\"blue\" font-weight=\"bold\">Subject:</fo:block>\n";
148       text += "                 </fo:table-cell>\n";
149       text += "                 <fo:table-cell>\n";
150       text += "                    <fo:block>" + SubjHTML + "</fo:block>\n";
151       text += "                 </fo:table-cell>\n";
152       text += "              </fo:table-row>\n";
153       text += "           </fo:table-body>\n";
154       text += "        </fo:table>\n";
155       text += AppletHTML;
156       text += "     </fo:flow>\n";
157       text += "  </fo:page-sequence>\n";
158       text += "</fo:root>\n";
159 
160       StringReader foText = new StringReader(text);
161 
162       return foText;
163    }
164    
165    public StringReader defaultText(){
166       String   text = new String  ();
167       text += "<?xml version=\"1.0\" encoding=\"utf-8\"?>\n";
168       text += "<fo:root xmlns:fo=\"http://www.w3.org/1999/XSL/Format\">\n";
169       text += "  <fo:layout-master-set>\n";
170       text += "     <fo:simple-page-master master-name=\"simple\" page-height=\"29.7cm\" page-width=\"21cm\" " + "margin-top=\"1cm\" margin-bottom=\"2cm\" margin-left=\"2.5cm\" margin-right=\"2.5cm\">\n";
171       text += "        <fo:region-body margin-top=\"3cm\"/>\n";
172       text += "        <fo:region-before extent=\"3cm\"/>\n";
173       text += "        <fo:region-after extent=\"1.5cm\"/>\n";
174       text += "     </fo:simple-page-master>\n";
175       text += "  </fo:layout-master-set>\n";
176       text += "  <fo:page-sequence master-reference=\"simple\">\n";
177       text += "     <fo:flow flow-name=\"xsl-region-body\">\n";
178       text += "        <fo:block font-size=\"18pt\" font-family=\"sans-serif\" line-height=\"24pt\" " + "space-after.optimum=\"15pt\" background-color=\"blue\" color=\"white\" " + "text-align=\"center\" padding-top=\"3pt\">\n";
179       text += "           Demo PDF file \n";
180       text += "        </fo:block>\n";
181       text += "        <fo:block font-size=\"12pt\" font-family=\"sans-serif\" line-height=\"18pt\" space-after.optimum=\"3pt\" text-align=\"center\" white-space-collapse=\"false\" language=\"en_US\" hyphenate=\"true\">\n";
182       text += "           <fo:inline font-family=\"sans-serif\" font-size=\"18pt\" font-weight=\"bold\" >There is no any request parameter given!!!</fo:inline>\n";
183       text += "        </fo:block>\n";
184       text += "        <fo:block font-size=\"12pt\" font-family=\"sans-serif\" line-height=\"18pt\" space-after.optimum=\"3pt\" text-align=\"center\" white-space-collapse=\"false\" language=\"en_US\" hyphenate=\"true\">\n";
185       text += "           <fo:inline font-family=\"sans-serif\" font-size=\"16pt\" ></fo:inline>\n";
186       text += "        </fo:block>\n";
187       text += "        <fo:block font-size=\"12pt\" font-family=\"sans-serif\" line-height=\"18pt\" space-after.optimum=\"3pt\" text-align=\"center\" white-space-collapse=\"false\" language=\"en_US\" hyphenate=\"true\">\n";
188       text += "           <fo:inline font-family=\"sans-serif\" font-size=\"12pt\" >Please, see documentation for details.</fo:inline>\n";
189       text += "        </fo:block>\n";
190       text += "     </fo:flow>\n";
191       text += "  </fo:page-sequence>\n";
192       text += "</fo:root>\n";
193     
194       StringReader defaultText = new StringReader(text);
195 
196       return defaultText;
197    }
198 }
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