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1 package org.apache.slide.projector.processor;
2
3 import java.util.Iterator  ;
4 import java.util.Map ;
5 import java.util.logging.Logger ;
6
7 import org.apache.slide.projector.ConfigurationException;
8 import org.apache.slide.projector.Context;
9 import org.apache.slide.projector.ProcessException;
10 import org.apache.slide.projector.Result;
11 import org.apache.slide.projector.descriptor.ArrayValueDescriptor;
12 import org.apache.slide.projector.descriptor.ParameterDescriptor;
13 import org.apache.slide.projector.descriptor.ResultDescriptor;
14 import org.apache.slide.projector.descriptor.ResultEntryDescriptor;
15 import org.apache.slide.projector.descriptor.StateDescriptor;
16 import org.apache.slide.projector.i18n.DefaultMessage;
17 import org.apache.slide.projector.i18n.ErrorMessage;
18 import org.apache.slide.projector.i18n.ParameterMessage;
19 import org.apache.slide.projector.value.ArrayValue;
20 import org.apache.slide.projector.value.StreamableValue;
21 import org.apache.slide.projector.value.StringValue;
22
23 public class TemplateArrayRenderer extends TemplateRenderer {
24 private static Logger logger = Logger.getLogger(TemplateArrayRenderer.class.getName());
25
26 private ParameterDescriptor[] parameterDescriptors;
27
28 public void configure(StreamableValue config) throws ConfigurationException {
29 super.configure(config);
30 parameterDescriptors = new ParameterDescriptor[parameterDescriptions.size()];
31 int counter = 0;
32 for ( Iterator i = parameterDescriptions.iterator(); i.hasNext(); ) {
33 ParameterDescriptor entryDescriptor = (ParameterDescriptor)i.next();
34 if ( entryDescriptor.getName() == FRAGMENT ) {
35 parameterDescriptors[counter] = entryDescriptor;
36 } else {
37 parameterDescriptors[counter] = new ParameterDescriptor(entryDescriptor.getName(), new ParameterMessage("templateArrayRenderer/parameter"), new ArrayValueDescriptor(entryDescriptor.getValueDescriptor()));
38 }
39 counter++;
40 }
41 }
42
43 public Result process(Map parameter, Context context) throws Exception {
44 String fragment = ((StringValue)parameter.get(FRAGMENT)).toString();
45 Template template = getRequiredFragment(fragment);
46 parameter.remove(FRAGMENT);
47 if ( template == null ) throw new ProcessException(new ErrorMessage("templateArrayRenderer/fragmentNotFound", new String [] { fragment }));
48 StringBuffer buffer = new StringBuffer (template.getLength());
49 for ( int i = 0; i < getMaxIndex(parameter); i++ ) {
50 template.evaluate(buffer, parameter, i);
51 }
52 return new Result(OK, OUTPUT, new StringValue(buffer.toString(), template.getContentType(), false));
53 }
54
55 public ParameterDescriptor[] getParameterDescriptors() {
56 return parameterDescriptors;
57 }
58
59 public ResultDescriptor getResultDescriptor() {
60 return new ResultDescriptor(
61 new StateDescriptor[] { StateDescriptor.OK_DESCRIPTOR },
62 new ResultEntryDescriptor[]{
63 new ResultEntryDescriptor(OUTPUT, new DefaultMessage("templateArrayRenderer/result/output"), "*", true)
64 });
65 }
66
67 protected int getMaxIndex(Map parameter) {
68 int maxIndex = 0;
69 for ( Iterator i = parameter.values().iterator(); i.hasNext(); ) {
70 ArrayValue resurce = (ArrayValue)i.next();
71 if ( resurce.getArray().length > maxIndex ) maxIndex = resurce.getArray().length;
72 }
73 return maxIndex;
74 }
75 } |
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