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1
49
50 package org.apache.avalon.meta.info.writer;
51
52 import java.io.IOException  ;
53 import java.io.OutputStream ;
54 import java.io.OutputStreamWriter ;
55 import java.io.Writer ;
56
57 import org.apache.avalon.meta.info.Descriptor;
58 import org.apache.avalon.meta.info.Service;
59
60
66 public class XMLServiceWriter
67 implements ServiceWriter
68 {
69
70
77 public void writeService( final Service service, final OutputStream stream )
78 throws Exception
79 {
80 final Writer writer = new OutputStreamWriter ( stream );
81 writeHeader( writer );
82 writeDoctype( writer, "service" );
83 writer.write( "\n\n<service>" );
84
85 writer.write( "\n <version>");
86 writer.write( service.getVersion().toString() );
87 writer.write( "</version>");
88
89 writeAttributes( writer, service );
90 writer.write( "\n</service>" );
91 writer.flush();
92 }
93
94
99 private void writeHeader( final Writer writer )
100 throws IOException
101 {
102 writer.write( "<?xml version=\"1.0\" ?>" );
103 }
104
105
112 private void writeDoctype( final Writer writer,
113 final String root )
114 throws IOException
115 {
116 final String doctype =
117 "\n<!DOCTYPE " + root
118 + " PUBLIC \"-//AVALON/Service DTD Version 1.0//EN\" "
119 + "\"http://avalon.apache.org/dtds/meta/service_1_0.dtd\" >";
120 writer.write( doctype );
121 }
122
123
130 private void writeAttributes( final Writer writer, final Descriptor descriptor )
131 throws IOException
132 {
133 String [] names = descriptor.getAttributeNames();
134 if( names.length > 0 )
135 {
136 writer.write( "\n <attributes>" );
137 for( int i = 0; i < names.length; i++ )
138 {
139 writeAttribute( writer, names[i], descriptor.getAttribute( names[i] ) );
140 }
141 writer.write( "\n </attributes>" );
142 }
143 }
144
145
153 private void writeAttribute( final Writer writer,
154 final String key, final String value )
155 throws IOException
156 {
157 writer.write( "\n <attribute key=\"" );
158 writer.write( key );
159 writer.write( "\" value=\"" );
160 writer.write( value );
161 writer.write( "\"/>" );
162 }
163 }
164 |
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