package org.maltparserx.core.syntaxgraph.feature;
import org.maltparserx.core.exception.MaltChainedException;
import org.maltparserx.core.feature.function.AddressFunction;
import org.maltparserx.core.feature.value.AddressValue;
import org.maltparserx.core.io.dataformat.ColumnDescription;
import org.maltparserx.core.io.dataformat.DataFormatInstance;
import org.maltparserx.core.symbol.nullvalue.NullValues.NullValueId;
import org.maltparserx.core.syntaxgraph.SyntaxGraphException;
import org.maltparserx.core.syntaxgraph.node.DependencyNode;
/**
*
*
* @author Johan Hall
*/
public final class InputColumnFeature extends ColumnFeature {
private final DataFormatInstance dataFormatInstance;
private AddressFunction addressFunction;
public InputColumnFeature(DataFormatInstance dataFormatInstance) throws MaltChainedException {
super();
this.dataFormatInstance = dataFormatInstance;
}
public void initialize(Object[] arguments) throws MaltChainedException {
if (arguments.length != 2) {
throw new SyntaxGraphException("Could not initialize InputColumnFeature: number of arguments are not correct. ");
}
if (!(arguments[0] instanceof String)) {
throw new SyntaxGraphException("Could not initialize InputColumnFeature: the first argument is not a string. ");
}
if (!(arguments[1] instanceof AddressFunction)) {
throw new SyntaxGraphException("Could not initialize InputColumnFeature: the second argument is not an address function. ");
}
ColumnDescription column = dataFormatInstance.getColumnDescriptionByName((String)arguments[0]);
if (column == null) {
throw new SyntaxGraphException("Could not initialize InputColumnFeature: the input column type '"+(String)arguments[0]+"' could not be found in the data format specification. ' ");
}
setColumn(column);
setAddressFunction((AddressFunction)arguments[1]);
}
public Class<?>[] getParameterTypes() {
Class<?>[] paramTypes = { java.lang.String.class, org.maltparserx.core.feature.function.AddressFunction.class };
return paramTypes;
}
public void update() throws MaltChainedException {
final AddressValue a = addressFunction.getAddressValue();
if (a.getAddress() == null) {
featureValue.update(column.getSymbolTable().getNullValueCode(NullValueId.NO_NODE),
column.getSymbolTable().getNullValueSymbol(NullValueId.NO_NODE), true, 1);
} else {
final DependencyNode node = (DependencyNode)a.getAddress();
if (!node.isRoot()) {
int indexCode = node.getLabelCode(column.getSymbolTable());
String symbol = column.getSymbolTable().getSymbolCodeToString(indexCode);
if (column.getType() == ColumnDescription.STRING) {
featureValue.update(indexCode, symbol, false, 1);
} else {
castFeatureValue(symbol);
}
} else {
featureValue.update(column.getSymbolTable().getNullValueCode(NullValueId.ROOT_NODE),
column.getSymbolTable().getNullValueSymbol(NullValueId.ROOT_NODE), true, 1);
}
}
}
public AddressFunction getAddressFunction() {
return addressFunction;
}
public void setAddressFunction(AddressFunction addressFunction) {
this.addressFunction = addressFunction;
}
public DataFormatInstance getDataFormatInstance() {
return dataFormatInstance;
}
public boolean equals(Object obj) {
if (this == obj)
return true;
if (obj == null)
return false;
if (getClass() != obj.getClass())
return false;
return obj.toString().equals(toString());
}
public int hashCode() {
return 217 + (null == toString() ? 0 : toString().hashCode());
}
public String toString() {
final StringBuilder sb = new StringBuilder();
sb.append("InputColumn(");
sb.append(super.toString());
sb.append(", ");
sb.append(addressFunction.toString());
sb.append(")");
return sb.toString();
}
}