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1 package org.apache.slide.projector.engine;
2
3 import java.io.ByteArrayOutputStream  ;
4 import java.io.IOException ;
5 import java.io.InputStream ;
6
7 import org.apache.slide.projector.Context;
8 import org.apache.slide.projector.Projector;
9 import org.apache.slide.projector.SystemContext;
10 import org.apache.slide.projector.URI;
11 import org.apache.slide.projector.util.StreamHelper;
12 import org.apache.slide.projector.value.StreamableValue;
13 import org.apache.slide.projector.value.URIValue;
14
15 public class ProjectorClassLoader extends ClassLoader {
16 URI uri;
17
18 public ProjectorClassLoader(ClassLoader parent, URI uri) {
19 super(parent);
20 this.uri = uri;
21 }
22
23 public Class findClass(String name) throws ClassNotFoundException {
24 Context context = new SystemContext();
25 try {
26 URI rendererUri = new URIValue(uri.toString() + name.replace('.', '/') + ".class");
27 StreamableValue resource = ((StreamableValue)Projector.getRepository().getResource(rendererUri, context.getCredentials()));
28 if ( resource == null ) {
29 throw new ClassNotFoundException ("Class " + name + " at URI '"+rendererUri+"' not found in collection '" + uri + "'!");
30 }
31 InputStream inputStream = resource.getInputStream();
32 ByteArrayOutputStream outputStream = new ByteArrayOutputStream (1024);
33 StreamHelper.copy(inputStream, outputStream);
34 byte[] b = outputStream.toByteArray();
35 return defineClass(name, b, 0, b.length);
36 } catch (IOException e) {
37 throw new ClassNotFoundException ("Class " + name + " not found in collection " + uri + "!", e);
38 }
39 }
40 } |
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