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1 package org.apache.slide.projector.processor;
2
3 import java.util.ArrayList  ;
4 import java.util.HashMap ;
5 import java.util.Iterator ;
6 import java.util.List ;
7 import java.util.Map ;
8 import java.util.logging.Logger ;
9
10 import org.apache.slide.projector.ConfigurationException;
11 import org.apache.slide.projector.Context;
12 import org.apache.slide.projector.Result;
13 import org.apache.slide.projector.descriptor.MapValueDescriptor;
14 import org.apache.slide.projector.descriptor.ParameterDescriptor;
15 import org.apache.slide.projector.descriptor.ResultDescriptor;
16 import org.apache.slide.projector.descriptor.ResultEntryDescriptor;
17 import org.apache.slide.projector.descriptor.StateDescriptor;
18 import org.apache.slide.projector.i18n.DefaultMessage;
19 import org.apache.slide.projector.i18n.ParameterMessage;
20 import org.apache.slide.projector.value.MapValue;
21 import org.apache.slide.projector.value.NullValue;
22 import org.apache.slide.projector.value.StreamableValue;
23 import org.apache.slide.projector.value.StringValue;
24
25 public class TemplateMapRenderer extends TemplateRenderer {
26 private static Logger logger = Logger.getLogger(TemplateMapRenderer.class.getName());
27
28 private ParameterDescriptor[] parameterDescriptors;
29
30 public void configure(StreamableValue config) throws ConfigurationException {
31 super.configure(config);
32 MapValueDescriptor mapValueDescriptor = new MapValueDescriptor();
33 List parameterDescriptorList = new ArrayList ();
34 for ( Iterator i = parameterDescriptions.iterator(); i.hasNext(); ) {
35 ParameterDescriptor entryDescriptor = (ParameterDescriptor)i.next();
36 if ( entryDescriptor.getName() == FRAGMENT ) {
38 parameterDescriptorList.add(entryDescriptor);
39 } else {
40 if ( entryDescriptor.isRequired() ) {
41 mapValueDescriptor.addEntryDescriptor(new ParameterDescriptor(entryDescriptor.getName(), new ParameterMessage("templateMapRenderer/mapEntry"), entryDescriptor.getValueDescriptor()));
42 } else {
43 mapValueDescriptor.addEntryDescriptor(new ParameterDescriptor(entryDescriptor.getName(), new ParameterMessage("templateMapRenderer/mapEntry"), entryDescriptor.getValueDescriptor(), entryDescriptor.getDefaultValue() ));
44 parameterDescriptorList.add(new ParameterDescriptor(entryDescriptor.getName(), entryDescriptor.getDescription(), entryDescriptor.getValueDescriptor(), NullValue.NULL));
45 }
46 }
47 }
48 parameterDescriptorList.add(new ParameterDescriptor(SimpleProcessor.INPUT, new ParameterMessage("templateMapRenderer/input"), mapValueDescriptor));
49 parameterDescriptors = (ParameterDescriptor[])parameterDescriptorList.toArray(new ParameterDescriptor[parameterDescriptorList.size()]);
50 }
51
52 public Result process(Map parameter, Context context) throws Exception {
53 String fragment = ((StringValue)parameter.get(FRAGMENT)).toString();
54 Template template = getRequiredFragment(fragment);
55 StringBuffer buffer = new StringBuffer (template.getLength());
56 Map parameterMap = new HashMap ();
57 parameterMap.putAll(parameter);
58 for ( Iterator j = ((MapValue)parameter.get(SimpleProcessor.INPUT)).getMap().entrySet().iterator(); j.hasNext(); ) {
59 Map.Entry entry = (Map.Entry )j.next();
60 if ( !(entry.getValue() instanceof NullValue) ) {
61 parameterMap.put(entry.getKey(), entry.getValue());
62 }
63 }
64 template.evaluate(buffer, parameterMap);
65 return new Result(OK, OUTPUT, new StringValue(buffer.toString(), template.getContentType(), false));
66 }
67
68 public ParameterDescriptor[] getParameterDescriptors() {
69 return parameterDescriptors;
70 }
71
72 public ResultDescriptor getResultDescriptor() {
73 return new ResultDescriptor(
74 new StateDescriptor[] { StateDescriptor.OK_DESCRIPTOR },
75 new ResultEntryDescriptor[]{
76 new ResultEntryDescriptor(OUTPUT, new DefaultMessage("templateMapRenderer/result/output"), "*", true)
77 });
78 }
79 } |
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