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