Mercurial > dive4elements > framework

annotate artifact-database/src/main/java/org/dive4elements/artifactdatabase/state/StateEngine.java @ 570:584591f8203c 3.2.x

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Upgrade to Log4j 2
author Tom Gottfried <tom@intevation.de>
date Mon, 28 Feb 2022 17:41:14 +0100
parents 415df0fc4fa1
children
rev   line source
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1 package org.dive4elements.artifactdatabase.state;
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3 import java.util.ArrayList;
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4 import java.util.HashMap;
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5 import java.util.List;
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6 import java.util.Map;
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7
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8 import org.apache.logging.log4j.Logger;
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9 import org.apache.logging.log4j.LogManager;
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11 import org.dive4elements.artifactdatabase.data.StateData;
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13
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14 /**
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15 * The StateEngine stores all states and associated information about
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16 * outputs and facets for each Artifact.
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17 *
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18 * @author <a href="mailto:ingo.weinzierl@intevation.de">Ingo Weinzierl</a>
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19 */
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20 public class StateEngine {
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22 /** The logger used in this class. */
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23 private static Logger logger = LogManager.getLogger(StateEngine.class);
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25 /**
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26 * A map that contains the states of the artifacts. The key of this map is
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27 * the name of an artifact, its value is a list of all states the artifact
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28 * can reach.
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29 */
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30 protected Map<String, List<State>> states;
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33 /**
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34 * A map that contains all existing states. The key of this map is the ID of
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35 * the state, its value is the state itself.
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36 */
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37 protected Map<String, State> allStates;
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40 /**
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41 * The default constructor.
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42 */
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43 public StateEngine() {
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44 states = new HashMap<String, List<State>>();
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45 allStates = new HashMap<String, State>();
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46 }
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49 /**
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50 * This method adds a state into the map <i>allStates</i>.
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51 *
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52 * @param state The state to add.
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53 */
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54 protected void addState(State state) {
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55 allStates.put(state.getID(), state);
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56 }
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58
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59 /**
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60 * Returns the state based on its ID.
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61 *
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62 * @param stateId The ID of the desired state.
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63 *
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64 * @return the state.
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65 */
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66 public State getState(String stateId) {
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67 return allStates.get(stateId);
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68 }
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71 public StateData getStateData(String artifact, String dataName) {
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72 List<State> artifactStates = getStates(artifact);
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74 if (artifactStates == null || artifactStates.size() == 0) {
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75 logger.warn("No States for Artifact '" + artifact + "' existing.");
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76 return null;
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77 }
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79 for (State state: artifactStates) {
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80 StateData sd = state.getData(dataName);
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82 if (sd != null) {
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83 return sd;
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84 }
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85 }
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87 logger.warn(
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88 "No StateData for Artifact '" + artifact +
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89 "' with name '" + dataName + "' existing.");
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91 return null;
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92 }
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95 /**
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96 * Add new states for a specific artifact.
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97 *
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98 * @param artifact The name of the artifact.
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99 * @param states A list of states that the artifact can reach.
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100 *
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101 * @return true, if the states were added, otherwise false.
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102 */
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103 public boolean addStates(String artifact, List<State> states) {
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104 List tmp = this.states.get(artifact);
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105
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106 if (tmp != null) {
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107 logger.info(
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108 "States for the artifact '" + artifact + "' already stored.");
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109
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110 return false;
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111 }
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112
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113 // add the state to the map with all existing states
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114 for (State s: states) {
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115 addState(s);
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116 }
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117
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118 logger.debug("Add new states for the artifact '" + artifact + "'");
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119 return this.states.put(artifact, states) != null;
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120 }
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123 /**
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124 * Returns the state list of an artifact specified by its name.
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125 *
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126 * @param artifact The name of the artifact (e.g. "winfo").
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127 *
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128 * @return the list of states of this artifact or <i>null</i> if no states
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129 * are existing for this <i>artifact</i>.
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130 */
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131 public List<State> getStates(String artifact) {
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132 return states.get(artifact);
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133 }
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134
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135
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136 /**
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137 * Return mapping of output to facets for an artifact in its states.
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138 */
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139 public Map<String, List<String>> getCompatibleFacets(List<String> aStates) {
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140 Map<String, List<String>> compatibilityMatrix =
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141 new HashMap<String, List<String>>();
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142
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143 // For all states that the artifact had seen, add outputs facets.
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144 logger.debug("Searching in " + aStates);
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145 for (String stateId: aStates) {
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146
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147 State state = allStates.get(stateId);
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148 if (state == null) {
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149 logger.debug("No state found for id " + stateId);
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150 continue;
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151 }
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152
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153 for (Output output: state.getOutputs()) {
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154 List<Facet> outFacets = output.getFacets();
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155 logger.debug("Facets for output " + output.getName() + " :" + outFacets);
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156
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157 List<String> oldFacets = compatibilityMatrix.get(output.getName());
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158
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159 if (oldFacets == null) {
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160 oldFacets = new ArrayList<String>();
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161 }
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162
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163 for (Facet facet: outFacets) {
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164 oldFacets.add(facet.getName());
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165 }
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166
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167 compatibilityMatrix.put(output.getName(), oldFacets);
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168 }
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169 }
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170 return compatibilityMatrix;
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171 }
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172 }
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173 // vim:set ts=4 sw=4 et sta sts=4 fenc=utf8 :
http://dive4elements.wald.intevation.org