Mercurial > dive4elements > river
annotate flys-artifacts/src/main/java/de/intevation/flys/artifacts/datacage/templating/StackFrames.java @ 1704:e8627d1e2db6
Cosmetics, docs.
flys-artifacts/trunk@2948 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author | Felix Wolfsteller <felix.wolfsteller@intevation.de> |
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date | Wed, 12 Oct 2011 10:59:12 +0000 |
parents | 5cb84ceee2a0 |
children | 3ca999f507b7 |
rev | line source |
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998
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Datacage: Moved templating in a better suited package.
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1 package de.intevation.flys.artifacts.datacage.templating; |
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2 |
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3 import java.util.ArrayList; |
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4 import java.util.Map; |
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5 import java.util.List; |
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6 import java.util.HashMap; |
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7 import java.util.HashSet; |
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8 import java.util.Set; |
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9 |
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10 import javax.xml.xpath.XPathVariableResolver; |
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11 |
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12 import javax.xml.namespace.QName; |
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13 |
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14 import org.apache.log4j.Logger; |
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15 |
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16 public class StackFrames |
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17 implements XPathVariableResolver |
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18 { |
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19 private static Logger log = Logger.getLogger(StackFrames.class); |
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20 |
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21 protected List<Map<String, Object>> frames; |
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22 |
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23 public StackFrames() { |
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24 frames = new ArrayList<Map<String, Object>>(); |
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25 } |
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26 |
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27 public StackFrames(Map<String, Object> initialFrame) { |
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28 this(); |
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29 if (initialFrame != null) { |
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30 frames.add(new HashMap<String, Object>(initialFrame)); |
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31 } |
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32 } |
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33 |
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34 public void enter() { |
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35 frames.add(new HashMap<String, Object>()); |
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36 } |
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37 |
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38 public void leave() { |
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39 frames.remove(frames.size()-1); |
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40 } |
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41 |
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42 public void put(String key, Object value) { |
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43 int N = frames.size(); |
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44 if (N > 0) { |
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45 frames.get(N-1).put(key, value); |
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46 } |
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47 } |
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48 |
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49 public void put(String [] keys, Object [] values) { |
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50 Map<String, Object> top = frames.get(frames.size()-1); |
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51 for (int i = 0; i < keys.length; ++i) { |
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52 top.put(keys[i], values[i]); |
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53 } |
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54 } |
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55 |
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56 public boolean containsKey(String key) { |
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57 for (int i = frames.size()-1; i >= 0; --i) { |
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58 if (frames.get(i).containsKey(key)) { |
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59 return true; |
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60 } |
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61 } |
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62 return false; |
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63 } |
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64 |
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65 public Object get(String key) { |
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66 return get(key, null); |
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67 } |
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68 |
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69 public Object get(String key, Object def) { |
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70 |
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71 for (int i = frames.size()-1; i >= 0; --i) { |
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72 Map<String, Object> frame = frames.get(i); |
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73 if (frame.containsKey(key)) { |
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74 return frame.get(key); |
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75 } |
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76 } |
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77 |
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78 return def; |
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79 } |
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80 |
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81 @Override |
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82 public Object resolveVariable(QName variableName) { |
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83 if (log.isDebugEnabled()) { |
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84 log.debug("resolve var: " + variableName); |
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85 } |
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86 return get(variableName.getLocalPart()); |
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87 } |
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88 |
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89 public String dump() { |
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90 StringBuilder sb = new StringBuilder("["); |
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91 Set<String> already = new HashSet<String>(); |
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92 |
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93 boolean first = true; |
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94 |
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95 for (int i = frames.size()-1; i >= 0; --i) { |
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96 Map<String, Object> frame = frames.get(i); |
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97 for (Map.Entry<String, Object> entry: frame.entrySet()) { |
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98 if (already.add(entry.getKey())) { |
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99 if (first) { first = false; } |
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100 else { sb.append(", "); } |
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101 sb.append('\'').append(entry.getKey()) |
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102 .append("'='").append(entry.getValue()).append('\''); |
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103 } |
5cb84ceee2a0
Datacage: Templates now can nest <dc:elements> into other elements in the body of <dc:context>
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
998
diff
changeset
|
104 } |
5cb84ceee2a0
Datacage: Templates now can nest <dc:elements> into other elements in the body of <dc:context>
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
998
diff
changeset
|
105 } |
5cb84ceee2a0
Datacage: Templates now can nest <dc:elements> into other elements in the body of <dc:context>
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
998
diff
changeset
|
106 return sb.append(']').toString(); |
5cb84ceee2a0
Datacage: Templates now can nest <dc:elements> into other elements in the body of <dc:context>
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
998
diff
changeset
|
107 } |
998
b81626b10cb7
Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
108 } |
b81626b10cb7
Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
109 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 : |