1 | package org.greenstone.gsdl3.build;
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2 |
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3 | import org.greenstone.gsdl3.util.*;
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4 | //import java.util.Thread
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5 | import javax.swing.event.EventListenerList;
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6 | import org.w3c.dom.Element;
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7 |
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8 | /** base class for collection construction */
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9 | public abstract class CollectionConstructor
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10 | extends Thread {
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11 |
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12 | /** the site in which building is to take place */
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13 | protected String site_home = null;
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14 | /** the name of the collection */
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15 | protected String collection_name = null;
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16 | /** the stage of construction */
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17 | protected int process_type = -1;
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18 | /** other arguments/parameters for the construction process - in a paramList */
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19 | protected Element process_params = null;
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20 | /** the list of listeners for the process */
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21 | protected EventListenerList listeners = null;
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22 | /** A flag used to determine if this process has been asked to cancel. */
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23 | protected boolean cancel = false;
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24 |
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25 | public CollectionConstructor(String name) {
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26 | super(name);
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27 | this.listeners = new EventListenerList();
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28 | }
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29 |
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30 | /** carry out any set up stuff - returns false if couldn't set up properly
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31 | */
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32 | public boolean configure() {
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33 | return true;
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34 | }
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35 | public void stopAction() {
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36 | this.cancel = true;
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37 | }
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38 |
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39 | public void setActionType(int type) {
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40 | this.process_type = type;
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41 | }
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42 | public void setSiteHome(String site_home) {
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43 | this.site_home = site_home;
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44 | }
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45 | public void setCollectionName(String coll_name) {
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46 | this.collection_name = coll_name;
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47 | }
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48 | public void setProcessParams(Element params) {
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49 | this.process_params = params;
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50 | }
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51 | public boolean addListener(ConstructionListener listener) {
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52 | this.listeners.add(ConstructionListener.class, listener);
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53 | return true;
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54 | }
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55 | public boolean removeListener(ConstructionListener listener) {
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56 | this.listeners.remove(ConstructionListener.class, listener);
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57 | return true;
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58 | }
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59 |
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60 | protected void sendProcessBegun(ConstructionEvent evt) {
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61 | Object[] concerned = this.listeners.getListenerList();
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62 | for(int i = 0; i < concerned.length ; i+=2) {
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63 | if(concerned[i] == ConstructionListener.class) {
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64 | ((ConstructionListener)concerned[i+1]).processBegun(evt);
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65 | }
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66 | }
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67 | }
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68 | protected void sendProcessComplete(ConstructionEvent evt) {
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69 | Object[] concerned = this.listeners.getListenerList();
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70 | for(int i = 0; i < concerned.length ; i+=2) {
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71 | if(concerned[i] == ConstructionListener.class) {
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72 | ((ConstructionListener)concerned[i+1]).processComplete(evt);
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73 | }
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74 | }
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75 | }
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76 |
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77 | protected void sendProcessStatus(ConstructionEvent evt) {
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78 |
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79 | Object[] concerned = this.listeners.getListenerList();
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80 | for(int i = 0; i < concerned.length ; i+=2) {
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81 | if(concerned[i] == ConstructionListener.class) {
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82 | ((ConstructionListener)concerned[i+1]).processStatus(evt);
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83 | }
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84 | }
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85 | }
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86 | protected void sendMessage(ConstructionEvent evt) {
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87 |
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88 | Object[] concerned = this.listeners.getListenerList();
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89 | for(int i = 0; i < concerned.length ; i+=2) {
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90 | if(concerned[i] == ConstructionListener.class) {
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91 | ((ConstructionListener)concerned[i+1]).message(evt);
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92 | }
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93 | }
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94 | }
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95 |
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96 | abstract public void run();
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97 | }
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