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Java > Open Source Codes > de > webman > generator > eventhandler > GRGenerateHandler


1 package de.webman.generator.eventhandler;
2
3 import java.io.*;
4 import java.net.*;
5
6 import com.teamkonzept.lib.*;
7 import com.teamkonzept.web.TKEvent;
8 import com.teamkonzept.web.TKHttpInterface;
9 import com.teamkonzept.webman.ProcessStarter;
10 import de.webman.acl.LoginFactory;
11 import com.teamkonzept.webman.mainint.WebmanExceptionHandler;
12 import com.teamkonzept.webman.WebManEvent;
13 import com.teamkonzept.webman.mainint.events.*;
14 import de.webman.util.log4j.WebmanCategory;
15
16 /**
17 * Starts the generator which generates the site.
18 * Folgende Events werden verstanden
19 * GR_GENERATE: Standard Generierung mit allen Fehlern
20 * GR_GENERATE_PROD: Produzenten generierung, ignoriert Workflow
21 * GR_GENERATE_RED : Redakteursgenerierung,nur Fehler für Redakteure, Workflow wird beachtet
22  * GR_GENERATE_CE : Inkrementelle Generierung eines Contents
23  * @author $Author: alex $
24  * @version $Revision: 1.5 $
25 */
26 public class GRGenerateHandler extends DefaultEventHandler implements ParameterTypes
27 {
28     private static GRGenerateHandler instance = new GRGenerateHandler();
29
30     /** Synchronisations variable */
31     private static boolean generationInProgress = false;
32     
33     boolean usePushlet = false;
34
35     private GRGenerateHandler()
36     {
37     }
38
39     public static GRGenerateHandler getInstance()
40     {
41         return instance;
42     }
43
44     public static boolean isGenerationInProgress()
45     {
46          return generationInProgress;
47     }
48     
49     public void handleEvent(TKEvent evt) throws TKException
50     {
51         try
52         {
53             WebManEvent.checkEvent(evt.getRemoteUser(), evt.getName(), GENERATOR);
54             synchronized (this) // this geht, weil Singleton
55 {
56                 if (!generationInProgress)
57                     generationInProgress = true;
58                 else
59                     throw new TKUserException("Generation in Progress", GENERATION_IN_PROGRESS, USER_SEVERITY, false, null);
60             }
61             TKHttpInterface httpInf = evt.getHttpInterface();
62
63             GRHTMLWrapper out = new GRHTMLWrapper(new PrintWriter(httpInf.getOutputStream()), httpInf.getContextPath());
64             PrintWriter log = new PrintWriter(httpInf.getLogStream());
65
66             out.start("Generator",
67                       LoginFactory.getInstance().getLogin(evt.getRemoteUser()).getName());
68             // fuer partielle Generierung
69 String JavaDoc siteNodeID = evt.getParameter(PARAMETER, "SITE_NODE_ID");
70             String JavaDoc instanceID = evt.getParameter(PARAMETER, "INSTANCE_ID");
71             String JavaDoc partialParam = "";
72             String JavaDoc contentInstance=" instance=" + instanceID;
73             if (evt.getName().equalsIgnoreCase("GR_GENERATE_CE"))
74             {
75                 partialParam += contentInstance; // Parameter fürs inkrementelle Gen.
76 }
77             if (evt.getName().equals("GR_GENERATE_PROD"))
78             {
79                 // Workflow ausschalten
80 partialParam += " ignoreWorkflow";
81             }
82             String JavaDoc user = " user=";
83             if (evt.getName().equalsIgnoreCase("GR_GENERATE_RED"))
84             {
85                 // UserAusgabe setzen
86 user += WebmanCategory.EDITOR;
87             }
88             else
89                 user += WebmanCategory.ALL;
90             partialParam += user;
91             if (siteNodeID != null && !siteNodeID.equals(""))
92                 partialParam = " id=" + siteNodeID;
93             String JavaDoc ref = evt.getParameter(PARAMETER, "REF");
94             if (ref != null && !ref.equals(""))
95                 partialParam = " refs=" + ref;
96             boolean success = false;
97             ProcessStarter ps = new ProcessStarter(out, log);
98             String JavaDoc gendir = null;
99             // Generierungsverzeichnis aus Properties holen !!
100 try
101             {
102                 PropertyManager man = PropertyManager.getPropertyManager("GENERATION");
103                 gendir = man.getValue("GENDIR");
104             }
105             catch (Throwable JavaDoc t)
106             {
107                 // ist egal, dann ist das Property nicht gesetzt
108 gendir = null; // fuer JTest
109 }
110             try
111             {
112                 if (gendir == null)
113                     gendir = httpInf.getDocumentRoot() ;
114                 success = ps.start("WebManGen",
115                                    httpInf.getDocumentRoot()+ partialParam + " gendir=" + gendir,
116                                    ProcessStarter.getWMClasspath(httpInf.getDocumentRoot()));
117             }
118             catch (Exception JavaDoc e)
119             {
120                 out.println(e);
121                 log.println(e);
122             }
123
124             out.end(success);
125             out.close();
126             log.close();
127         }
128         catch (Throwable JavaDoc e)
129         {
130             // TO DO : Analyze Exception !
131 throw WebmanExceptionHandler.getException(e);
132         }
133         finally
134         {
135             generationInProgress = false;
136         }
137     }
138
139     public boolean isHandler(TKEvent evt)
140     {
141         return evt.getName().equalsIgnoreCase("GR_GENERATE") || evt.getName().equalsIgnoreCase("GR_GENERATE_PROD")
142         || evt.getName().equalsIgnoreCase("GR_GENERATE_RED") || evt.getName().equals("GR_GENERATE_CE");
143     }
144
145 }
146
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