    001    package org.maltparser.core.syntaxgraph.feature;
    002
    003    import org.maltparser.core.exception.MaltChainedException;
    004    import org.maltparser.core.feature.function.AddressFunction;
    005    import org.maltparser.core.feature.value.AddressValue;
    006    import org.maltparser.core.io.dataformat.DataFormatInstance;
    007    import org.maltparser.core.symbol.SymbolTableHandler;
    008    import org.maltparser.core.symbol.TableFeature;
    009    import org.maltparser.core.symbol.nullvalue.NullValues.NullValueId;
    010    import org.maltparser.core.syntaxgraph.SyntaxGraphException;
    011    import org.maltparser.core.syntaxgraph.node.DependencyNode;
    012    /**
    013    *
    014    *
    015    * @author Johan Hall
    016    */
    017    public class OutputTableFeature extends TableFeature {
    018            protected AddressFunction addressFunction;
    019            protected SymbolTableHandler tableHandler;
    020
    021            public OutputTableFeature(DataFormatInstance dataFormatInstance) throws MaltChainedException {
    022                    super();
    023                    setTableHandler(dataFormatInstance.getSymbolTables());
    024            }
    025
    026            public void initialize(Object[] arguments) throws MaltChainedException {
    027                    if (arguments.length != 2) {
    028                            throw new SyntaxGraphException("Could not initialize OutputTableFeature: number of arguments are not correct. ");
    029                    }
    030                    if (!(arguments[0] instanceof String)) {
    031                            throw new SyntaxGraphException("Could not initialize OutputTableFeature: the first argument is not a string. ");
    032                    }
    033                    if (!(arguments[1] instanceof AddressFunction)) {
    034                            throw new SyntaxGraphException("Could not initialize OutputTableFeature: the second argument is not an address function. ");
    035                    }
    036                    setSymbolTable(tableHandler.getSymbolTable((String)arguments[0]));
    037                    setAddressFunction((AddressFunction)arguments[1]);
    038            }
    039
    040            public Class<?>[] getParameterTypes() {
    041                    Class<?>[] paramTypes = { java.lang.String.class, org.maltparser.core.feature.function.AddressFunction.class };
    042                    return paramTypes;
    043            }
    044
    045            public void update()  throws MaltChainedException {
    046                    final AddressValue a = addressFunction.getAddressValue();
    047
    048                    if (a.getAddress() == null) {
    049                            featureValue.setCode(getSymbolTable().getNullValueCode(NullValueId.NO_NODE));
    050                            featureValue.setSymbol(getSymbolTable().getNullValueSymbol(NullValueId.NO_NODE));
    051                            featureValue.setKnown(true);
    052                            featureValue.setNullValue(true);
    053                    } else {
    054    //                      try {
    055    //                              a.getAddressClass().asSubclass(org.maltparser.core.syntaxgraph.node.DependencyNode.class);
    056
    057                                    final DependencyNode node = (DependencyNode)a.getAddress();
    058                                    if (!node.isRoot()) {
    059                                            if (node.hasHead()) {
    060                                                    featureValue.setCode(node.getHeadEdge().getLabelCode(getSymbolTable()));
    061                                                    featureValue.setSymbol(getSymbolTable().getSymbolCodeToString(node.getHeadEdge().getLabelCode(getSymbolTable())));
    062                                                    featureValue.setKnown(getSymbolTable().getKnown(node.getHeadEdge().getLabelCode(getSymbolTable())));
    063                                                    featureValue.setNullValue(false);
    064                                            } else {
    065                                                    featureValue.setCode(getSymbolTable().getNullValueCode(NullValueId.NO_VALUE));
    066                                                    featureValue.setSymbol(getSymbolTable().getNullValueSymbol(NullValueId.NO_VALUE));
    067                                                    featureValue.setKnown(true);
    068                                                    featureValue.setNullValue(true);
    069                                            }
    070                                    } else {
    071                                            featureValue.setCode(getSymbolTable().getNullValueCode(NullValueId.ROOT_NODE));
    072                                            featureValue.setSymbol(getSymbolTable().getNullValueSymbol(NullValueId.ROOT_NODE));
    073                                            featureValue.setKnown(true);
    074                                            featureValue.setNullValue(true);
    075                                    }
    076    //                      } catch (ClassCastException e) {
    077    //                              featureValue.setCode(getSymbolTable().getNullValueCode(NullValueId.NO_NODE));
    078    //                              featureValue.setSymbol(getSymbolTable().getNullValueSymbol(NullValueId.NO_NODE));
    079    //                              featureValue.setKnown(true);
    080    //                              featureValue.setNullValue(true);
    081    //                      }
    082                    }
    083            }
    084
    085            public AddressFunction getAddressFunction() {
    086                    return addressFunction;
    087            }
    088
    089            public void setAddressFunction(AddressFunction addressFunction) {
    090                    this.addressFunction = addressFunction;
    091            }
    092
    093            public SymbolTableHandler getTableHandler() {
    094                    return tableHandler;
    095            }
    096
    097            public void setTableHandler(SymbolTableHandler tableHandler) {
    098                    this.tableHandler = tableHandler;
    099            }
    100
    101
    102            public boolean equals(Object obj) {
    103                    if (this == obj)
    104                            return true;
    105                    if (obj == null)
    106                            return false;
    107                    if (getClass() != obj.getClass())
    108                            return false;
    109                    return obj.toString().equals(toString());
    110            }
    111
    112            public int hashCode() {
    113                    return 217 + (null == toString() ? 0 : toString().hashCode());
    114            }
    115
    116            public String toString() {
    117                    final StringBuilder sb = new StringBuilder();
    118                    sb.append("OutputTable(");
    119                    sb.append(super.toString());
    120                    sb.append(", ");
    121                    sb.append(addressFunction.toString());
    122                    sb.append(")");
    123                    return sb.toString();
    124            }
    125    }