1 package com.indexdata.pz2utils4jsf.pazpar2.state;
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3 import java.util.HashMap;
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4 import java.util.Map;
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6 import com.indexdata.pz2utils4jsf.pazpar2.commands.BytargetCommand;
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7 import com.indexdata.pz2utils4jsf.pazpar2.commands.InitCommand;
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8 import com.indexdata.pz2utils4jsf.pazpar2.commands.Pazpar2Command;
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9 import com.indexdata.pz2utils4jsf.pazpar2.commands.Pazpar2Commands;
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10 import com.indexdata.pz2utils4jsf.pazpar2.commands.PingCommand;
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11 import com.indexdata.pz2utils4jsf.pazpar2.commands.RecordCommand;
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12 import com.indexdata.pz2utils4jsf.pazpar2.commands.SearchCommand;
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13 import com.indexdata.pz2utils4jsf.pazpar2.commands.SettingsCommand;
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14 import com.indexdata.pz2utils4jsf.pazpar2.commands.ShowCommand;
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15 import com.indexdata.pz2utils4jsf.pazpar2.commands.StatCommand;
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16 import com.indexdata.pz2utils4jsf.pazpar2.commands.TermlistCommand;
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19 * Holds a 'pazpar2 state', understood as a full set of pazpar2 commands and
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20 * all their parameter settings at a given point in time.
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22 * @author Niels Erik
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25 public class Pazpar2State {
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28 Map<String,Pazpar2Command> commands = new HashMap<String,Pazpar2Command>();;
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30 public Pazpar2State (StateManager mgr) {
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31 commands.put(Pazpar2Commands.INIT, new InitCommand(mgr));
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32 commands.put(Pazpar2Commands.PING, new PingCommand(mgr));
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33 commands.put(Pazpar2Commands.SETTINGS, new SettingsCommand(mgr));
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34 commands.put(Pazpar2Commands.SEARCH, new SearchCommand(mgr));
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35 commands.put(Pazpar2Commands.STAT, new StatCommand(mgr));
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36 commands.put(Pazpar2Commands.SHOW, new ShowCommand(mgr));
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37 commands.put(Pazpar2Commands.RECORD, new RecordCommand(mgr));
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38 commands.put(Pazpar2Commands.TERMLIST, new TermlistCommand(mgr));
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39 commands.put(Pazpar2Commands.BYTARGET, new BytargetCommand(mgr));
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44 * Creates new state by cloning all commands of the provided state and
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45 * then overriding one of them with the provided state changing command.
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47 * @param previousState
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50 public Pazpar2State (Pazpar2State previousState, Pazpar2Command newCommand) {
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51 for (String commandName : previousState.commands.keySet()) {
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52 this.commands.put(commandName, previousState.commands.get(commandName).copy());
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54 this.commands.put(newCommand.getName(),newCommand);
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55 this.key = getKey();
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59 * Generates a state key that can be used by the browser to pick
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60 * up this state again at a later point in time.
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64 public String getKey() {
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66 StringBuilder querystatebuilder = new StringBuilder("");
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67 for (Pazpar2Command command : commands.values()) {
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68 if (command.hasParameters()) {
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69 querystatebuilder.append("||"+command.getName()+"::");
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70 querystatebuilder.append(command.getValueWithExpressions());
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73 key = "#"+querystatebuilder.toString().hashCode();
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81 * Checks if a command represents a change of this state
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84 * @return true if the command causes a change of state
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86 public boolean stateMutating (Pazpar2Command command) {
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87 if (command == null) {
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89 } else if (commands.get(command.getName()) == null) {
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91 } else if ((command.equals(commands.get(command.getName())))) {
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99 * Returns a command from this state
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104 public Pazpar2Command getCommand(String name) {
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105 return commands.get(name);
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