package storm.trident.tuple;
import backtype.storm.tuple.Fields;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import org.apache.commons.lang.builder.ToStringBuilder;
public class ValuePointer {
public static Map<String, ValuePointer> buildFieldIndex(ValuePointer[] pointers) {
Map<String, ValuePointer> ret = new HashMap<String, ValuePointer>();
for(ValuePointer ptr: pointers) {
ret.put(ptr.field, ptr);
}
return ret;
}
public static ValuePointer[] buildIndex(Fields fieldsOrder, Map<String, ValuePointer> pointers) {
if(fieldsOrder.size()!=pointers.size()) {
throw new IllegalArgumentException("Fields order must be same length as pointers map");
}
ValuePointer[] ret = new ValuePointer[pointers.size()];
for(int i=0; i<fieldsOrder.size(); i++) {
ret[i] = pointers.get(fieldsOrder.get(i));
}
return ret;
}
public int delegateIndex;
protected int index;
protected String field;
public ValuePointer(int delegateIndex, int index, String field) {
this.delegateIndex = delegateIndex;
this.index = index;
this.field = field;
}
@Override
public String toString() {
return ToStringBuilder.reflectionToString(this);
}
}