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 }