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Java > Open Source Codes > org > openlaszlo > iv > flash > commands > SetEnvironmentCommand


1 /*
2  * $Id: SetEnvironmentCommand.java,v 1.4 2002/05/29 03:54:49 skavish Exp $
3  *
4  * ===========================================================================
5  *
6  * The JGenerator Software License, Version 1.0
7  *
8  * Copyright (c) 2000 Dmitry Skavish (skavish@usa.net). All rights reserved.
9  *
10  * Redistribution and use in source and binary forms, with or without
11  * modification, are permitted provided that the following conditions are met:
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13  * 1. Redistributions of source code must retain the above copyright
14  * notice, this list of conditions and the following disclaimer.
15  *
16  * 2. Redistributions in binary form must reproduce the above copyright
17  * notice, this list of conditions and the following disclaimer in
18  * the documentation and/or other materials provided with the
19  * distribution.
20  *
21  * 3. The end-user documentation included with the redistribution, if
22  * any, must include the following acknowlegement:
23  * "This product includes software developed by Dmitry Skavish
24  * (skavish@usa.net, http://www.flashgap.com/)."
25  * Alternately, this acknowlegement may appear in the software itself,
26  * if and wherever such third-party acknowlegements normally appear.
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28  * 4. The name "The JGenerator" must not be used to endorse or promote
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30  * For written permission, please contact skavish@usa.net.
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32  * 5. Products derived from this software may not be called "The JGenerator"
33  * nor may "The JGenerator" appear in their names without prior written
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50
51 package org.openlaszlo.iv.flash.commands;
52
53 import org.openlaszlo.iv.flash.parser.*;
54 import org.openlaszlo.iv.flash.api.*;
55 import org.openlaszlo.iv.flash.util.*;
56
57 import org.openlaszlo.iv.flash.context.*;
58 import java.io.*;
59
60 /**
61  * Set environment in the following format:<BR>
62  * NAME,VALUE<BR>
63  * name1, value1<BR>
64  * name2, value2<BR>
65  * name3, value3<BR>
66  * name4, value4<BR>
67  */
68 public class SetEnvironmentCommand extends GenericCommand {
69
70     public SetEnvironmentCommand() {
71     }
72
73     public void doCommand( FlashFile file, Context context, Script parent, int frame ) throws IVException {
74         String JavaDoc datasource = getParameter( context, "datasource" );
75
76         if( datasource != null ) {
77             try {
78                 if( context instanceof FakeContext ) {
79
80                     Context myContext = ContextFactory.createContext( context.getParent(), datasource, file, false );
81
82                     ((FakeContext)context).setContext( myContext );
83
84                 } else {
85                     // normally we should not come here, because there may be only one setEnvironment command
86 // on a timeline, and only this command sets new context to FakeContext
87 // so if a context to be read is not StandardContext or if parent context is not StandardContext
88 // then we throw an exception
89 if( !(context instanceof StandardContext) ) {
90                         throw new IVException( Resource.EXPECTSTDCONTEXT );
91                     }
92
93                     // this will throw an exception if the context to be read is not standard
94 String JavaDoc[][] data = ContextFactory.readStandardContext( datasource, file );
95                     ContextFactory.setStandardContextData( (StandardContext) context, data );
96                 }
97             } catch( IOException e ) {
98                 throw new IVException(Resource.ERRDATAREAD, new Object JavaDoc[] {datasource, getCommandName()}, e);
99             } catch( Exception JavaDoc e ) {
100                 throw new IVException(Resource.INVALDATASOURCE, new Object JavaDoc[] {datasource, getCommandName()}, e);
101             }
102         }
103     }
104
105     public boolean isGlobal() {
106         return true;
107     }
108 }
109
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