Mercurial > dive4elements > framework

annotate artifact-database/src/main/java/de/intevation/artifactdatabase/state/AbstractState.java @ 205:2a9591f76270

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Changed the return type of a State's describe() method. artifacts/trunk@1462 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Ingo Weinzierl <ingo.weinzierl@intevation.de>
date Mon, 14 Mar 2011 14:19:28 +0000
parents ece0fdb07975
children 1a3fb29b8b2e
rev   line source
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1 /*
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2 * Copyright (c) 2011 by Intevation GmbH
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3 *
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4 * This program is free software under the LGPL (>=v2.1)
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5 * Read the file LGPL.txt coming with the software for details
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6 * or visit http://www.gnu.org/licenses/ if it does not exist.
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7 */
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8 package de.intevation.artifactdatabase.state;
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9
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10 import java.util.HashMap;
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11 import java.util.Map;
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12
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13 import javax.xml.xpath.XPathConstants;
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14
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15 import org.w3c.dom.Document;
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16 import org.w3c.dom.Element;
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17 import org.w3c.dom.Node;
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18
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19 import de.intevation.artifacts.CallContext;
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20
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21 import de.intevation.artifacts.common.utils.XMLUtils;
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22
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23 import de.intevation.artifactdatabase.data.StateData;
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24
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25
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26 /**
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27 * An abstract implementation of a {@link State}. It implements some basic
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28 * methods that return the id, description and data. The methods
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29 * <code>describe()</code> and <code>setup()</code> depend on the concrete class
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30 * and need to be implemented by those.
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31 */
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32 public abstract class AbstractState implements State {
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33
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34 /** The XPath to the ID of the state relative to the state node in the
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35 * configuration. */
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36 public static final String XPATH_ID = "@id";
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37
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38 /** The XPath to the description of the state relative to the state node in
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39 * the configuration. */
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40 public static final String XPATH_DESCRIPTION = "@description";
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41
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42
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43 /** The ID of the state. */
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44 protected String id;
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45
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46 /** The description of the state. */
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47 protected String description;
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48
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49 /** The data provided by this state. */
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50 protected Map<String, StateData> data;
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51
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52
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53 public AbstractState() {
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54 }
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55
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56
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57 /**
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58 * The default constructor.
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59 *
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60 * @param id The ID of the state.
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61 * @param description The description of the state.
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62 */
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63 public AbstractState(String id, String description) {
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64 this.id = id;
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65 this.description = description;
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66 }
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67
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68
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69 /**
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70 * Returns the ID of the state.
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71 *
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72 * @return the ID of the state.
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73 */
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74 public String getID() {
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75 return id;
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76 }
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77
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78
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79 /**
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80 * Set the ID of the state.
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81 *
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82 * @param id The ID of the state.
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83 */
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84 public void setID(String id) {
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85 this.id = id;
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86 }
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87
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88
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89 /**
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90 * Returns the description of the state.
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91 *
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92 * @return the description of the state.
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93 */
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94 public String getDescription() {
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95 return description;
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96 }
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97
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98
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99 /**
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100 * Set the description of the state.
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101 *
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102 * @param description The description of the state.
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103 */
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104 public void setDescription(String description) {
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105 this.description = description;
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106 }
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107
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108
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109 /**
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110 * Returns the data of the state.
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111 *
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112 * @return the data of the state.
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113 */
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114 public Map<String, StateData> getData() {
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115 return data;
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116 }
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118
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119 /**
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120 * Add new data to the state. NOTE: If there is already an object existing
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121 * with the key <i>name</i>, this object is overwritten by the new value.
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122 *
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123 * @param name The name of the data object.
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124 * @param StateData The data object.
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125 */
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126 public void addData(String name, StateData data) {
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127 if (this.data == null) {
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128 this.data = new HashMap<String, StateData>();
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129 }
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130
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131 this.data.put(name, data);
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132 }
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133
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134
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135 /**
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136 * Initialize the state based on the state node in the configuration.
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137 *
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138 * @param config The state configuration node.
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139 */
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140 public void setup(Node config) {
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141 id = (String) XMLUtils.xpath(config, XPATH_ID, XPathConstants.STRING);
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142
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143 description = (String) XMLUtils.xpath(
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144 config, XPATH_DESCRIPTION, XPathConstants.STRING);
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145 }
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146
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147
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148 /**
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149 * Describes the UI of the state. This method needs to be implemented by
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150 * concrete subclasses.
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151 *
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152 * @param document Describe doucment.
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153 * @param rootNode Parent node for all new elements.
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154 * @param context The CallContext.
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155 * @param uuid The uuid of an artifact.
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156 */
205
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157 public abstract Element describe(
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158 Document document,
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159 Node rootNode,
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160 CallContext context,
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161 String uuid
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162 );
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163 }
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164 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf-8 :
http://dive4elements.wald.intevation.org