Mercurial > dive4elements > gnv-client

annotate gnv-artifacts/src/main/java/de/intevation/gnv/transition/OutputTransitionBase.java @ 200:2f6a96610cb9

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Changed Configuration Folder to doc/conf gnv-artifacts/trunk@254 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Tim Englich <tim.englich@intevation.de>
date Wed, 21 Oct 2009 10:27:16 +0000
parents 4896d4f94bdc
children 734ac082c8d1
rev   line source
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1 /**
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2 *
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3 */
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4 package de.intevation.gnv.transition;
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5
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6 import java.io.OutputStream;
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7 import java.util.ArrayList;
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8 import java.util.Collection;
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9
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10 import net.sf.ehcache.Element;
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11
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12 import org.apache.log4j.Logger;
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13 import org.w3c.dom.Node;
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14 import org.w3c.dom.NodeList;
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15
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16 import de.intevation.artifactdatabase.Config;
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17 import de.intevation.artifacts.CallMeta;
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18 import de.intevation.gnv.artifacts.cache.CacheFactory;
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19 import de.intevation.gnv.geobackend.base.Result;
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20 import de.intevation.gnv.transition.exception.TransitionException;
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22 /**
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23 * @author Tim Englich <tim.englich@intevation.de>
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24 *
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25 */
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26 public abstract class OutputTransitionBase extends TransitionBase implements
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27 OutputTransition {
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28
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29 /**
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30 * The UID of this Class
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31 */
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32 private static final long serialVersionUID = -1718732895737303823L;
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33
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34 /**
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35 * the logger, used to log exceptions and additonaly information
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36 */
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37 private static Logger log = Logger.getLogger(OutputTransitionBase.class);
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38
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39 /**
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40 * The different Outputmodes which are provided by an OutputTransition
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41 */
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42 protected Collection<OutputMode> outputModes = null;
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43
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44 /**
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45 * Constructor
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46 */
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47 public OutputTransitionBase() {
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48 super();
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49 }
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50
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51 /**
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52 * @see de.intevation.gnv.transition.OutputTransition#getOutputModes()
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53 */
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54 public Collection<OutputMode> getOutputModes() {
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55 log.debug("OutputTransitionBase.getOutputModes");
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56 return this.outputModes;
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57 }
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58
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59 /**
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60 * @see de.intevation.gnv.transition.Transition#validate()
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61 */
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62 public boolean validate() {
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63 log.debug("OutputTransitionBase.validate");
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64 return true;
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65 }
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66
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67 /**
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68 * @see de.intevation.gnv.transition.TransitionBase#setup(org.w3c.dom.Node)
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69 */
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70 @Override
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71 public void setup(Node configuration) {
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72 log.debug("OutputTransitionBase.setup");
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73 super.setup(configuration);
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74 NodeList outputModeList = Config.getNodeSetXPath(configuration,
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75 "outputsModes/outputsMode");
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76 if (outputModeList != null) {
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77 log.debug(outputModeList.getLength() + " were found.");
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78 this.outputModes = new ArrayList<OutputMode>(outputModeList
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79 .getLength());
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80 for (int i = 0; i < outputModeList.getLength(); i++) {
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81 Node currentNode = outputModeList.item(i);
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82 String name = Config.getStringXPath(currentNode, "@name");
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83 String description = Config.getStringXPath(currentNode,
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84 "@description");
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85 String mimeType = Config.getStringXPath(currentNode,
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86 "@mime-type");
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87
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88 NodeList inputValuesList = Config.getNodeSetXPath(currentNode,
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89 "parameters/inputvalue");
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90 Collection<InputValue> inputParameters = null;
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91 if (inputValuesList != null) {
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92 inputParameters = new ArrayList<InputValue>(inputValuesList
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93 .getLength());
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94 for (int j = 0; j < inputValuesList.getLength(); j++) {
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95 Node currentInputValuesNode = inputValuesList.item(j);
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96 String inputValueName = Config.getStringXPath(
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97 currentInputValuesNode, "@name");
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98 String inputValueType = Config.getStringXPath(
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99 currentInputValuesNode, "@type");
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100 String defaultValue = Config.getStringXPath(
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101 currentInputValuesNode, "@value");
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102 boolean isMultiselect = false;
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103 InputValue inputValue = new DefaultInputValue(
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104 inputValueName, inputValueType, defaultValue,
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105 isMultiselect);
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106 inputParameters.add(inputValue);
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107 }
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108 }
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109
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110 OutputMode outputMode = new DefaultOutputMode(name,
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111 description, mimeType, inputParameters);
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112 log.debug(outputMode.toString());
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113 this.outputModes.add(outputMode);
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114
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115 }
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116 }
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117 }
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118
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119 /**
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120 * @see de.intevation.gnv.transition.TransitionBase#advance()
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121 */
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122 @Override
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123 public void advance(String uuid, CallMeta callMeta)
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124 throws TransitionException {
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125 log.debug("OutputTransitionBase.advance");
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126 if (this.getChartResult(uuid) == null) {
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127 super.advance(uuid, callMeta);
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128 }
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129 }
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130
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131 /**
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132 * @see de.intevation.gnv.transition.OutputTransition#out(java.lang.String,
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133 * java.util.Collection, java.io.OutputStream)
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134 */
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135 public void out(String outputMode, Collection<InputData> inputData,
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136 OutputStream outputStream) throws TransitionException {
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137 }
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138
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139 /**
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140 * @return
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141 */
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142 protected Collection<Result> getChartResult(String uuid) {
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143 log.debug("OutputTransitionBase.getChartResult");
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144 if (CacheFactory.getInstance().isInitialized()) {
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145 String key = uuid + super.getID();
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146 log.debug("Hash for Queryelements: " + key);
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147 Element value = CacheFactory.getInstance().getCache().get(key);
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148 if (value != null) {
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149 return (Collection<Result>) (value.getObjectValue());
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150 }
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151 }
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152 return null;
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153 }
182
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154
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155 protected void removeChartResult(String uuid) {
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156 log.debug("OutputTransitionBase.getChartResult");
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157 if (CacheFactory.getInstance().isInitialized()) {
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158 String key = uuid + super.getID();
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159 log.debug("Hash for Queryelements: " + key);
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160 Element value = CacheFactory.getInstance().getCache().get(key);
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161 if (value != null) {
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162 CacheFactory.getInstance().getCache().remove(key);
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163 }
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164 }
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165 }
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166
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167 /**
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168 * @see de.intevation.gnv.transition.TransitionBase#purifyResult(java.util.Collection,
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169 * java.lang.String)
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170 */
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171 @Override
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172 protected void purifyResult(Collection<Result> result, String uuid) {
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173 log.debug("OutputTransitionBase.purifyResult");
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174 if (CacheFactory.getInstance().isInitialized()) {
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175 String key = uuid + super.getID();
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176 log.debug("Hash for Queryelements: " + key);
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177 CacheFactory.getInstance().getCache().put(new Element(key, result));
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178 }
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179 }
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180
182
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181 /**
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182 * @see de.intevation.gnv.transition.TransitionBase#putInputData(java.util.Collection, java.lang.String)
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183 */
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184 @Override
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185 public void putInputData(Collection<InputData> inputData,
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186 String uuid)
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187 throws TransitionException {
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188 log.debug("OutputTransitionBase.putInputData");
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189 this.removeChartResult(uuid);
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190 super.putInputData(inputData, uuid);
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191 }
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192
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193 public void out(String outputMode, Collection<InputData> inputData,
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194 OutputStream outputStream, String uuid, CallMeta callMeta)
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195 throws TransitionException {
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196 }
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197
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198
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199
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200 }
http://dive4elements.wald.intevation.org