import java.util.ArrayList;
import java.util.Collections;
+import java.util.Comparator;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
+import java.util.Map.Entry;
import java.util.TreeMap;
/**
*/
public class FeatureAttributes
{
+ public enum Datatype
+ {
+ Character, Number, Mixed
+ }
+
private static FeatureAttributes instance = new FeatureAttributes();
- private Map<String, Map<String, AttributeData>> attributes;
+ /*
+ * map, by feature type, of a map, by attribute name, of
+ * attribute description and min-max range (if known)
+ */
+ private Map<String, Map<String[], AttributeData>> attributes;
+
+ /*
+ * a case-insensitive comparator so that attributes are ordered e.g.
+ * AC
+ * af
+ * CSQ:AFR_MAF
+ * CSQ:Allele
+ */
+ private Comparator<String[]> comparator = new Comparator<String[]>()
+ {
+ @Override
+ public int compare(String[] o1, String[] o2)
+ {
+ int i = 0;
+ while (i < o1.length || i < o2.length)
+ {
+ if (o2.length <= i)
+ {
+ return o1.length <= i ? 0 : 1;
+ }
+ if (o1.length <= i)
+ {
+ return -1;
+ }
+ int comp = String.CASE_INSENSITIVE_ORDER.compare(o1[i], o2[i]);
+ if (comp != 0)
+ {
+ return comp;
+ }
+ i++;
+ }
+ return 0; // same length and all matched
+ }
+ };
private class AttributeData
{
*/
boolean hasValue = false;
+ Datatype type;
+
/**
* Note one instance of this attribute, recording unique, non-null names,
* and the min/max of any numerical values
try
{
float f = Float.valueOf(value);
- min = Float.min(min, f);
- max = Float.max(max, f);
+ min = hasValue ? Float.min(min, f) : f;
+ max = hasValue ? Float.max(max, f) : f;
hasValue = true;
+ type = (type == null || type == Datatype.Number) ? Datatype.Number
+ : Datatype.Mixed;
} catch (NumberFormatException e)
{
- // ok, wasn't a number, ignore for min-max purposes
+ // not a number, ignore for min-max purposes
+ type = (type == null || type == Datatype.Character)
+ ? Datatype.Character
+ : Datatype.Mixed;
}
}
}
return null;
}
+ public Datatype getType()
+ {
+ return type;
+ }
+
/**
* Adds the given description to the list of known descriptions (without
* duplication)
}
/**
- * Answers the attributes known for the given feature type, in alphabetical
- * order (not case sensitive), or an empty set if no attributes are known
+ * Answers the attribute names known for the given feature type, in
+ * alphabetical order (not case sensitive), or an empty set if no attributes
+ * are known. An attribute name is typically 'simple' e.g. "AC", but may be
+ * 'compound' e.g. {"CSQ", "Allele"} where a feature has map-valued attributes
*
* @param featureType
* @return
*/
- public List<String> getAttributes(String featureType)
+ public List<String[]> getAttributes(String featureType)
{
if (!attributes.containsKey(featureType))
{
- return Collections.<String> emptyList();
+ return Collections.<String[]> emptyList();
}
return new ArrayList<>(attributes.get(featureType).keySet());
* type, and updates the min-max for any numeric value
*
* @param featureType
- * @param attName
* @param description
* @param value
+ * @param attName
*/
- public void addAttribute(String featureType, String attName,
- String description, String value)
+ public void addAttribute(String featureType, String description,
+ Object value, String... attName)
{
if (featureType == null || attName == null)
{
return;
}
- Map<String, AttributeData> atts = attributes.get(featureType);
+ /*
+ * if attribute value is a map, drill down one more level to
+ * record its sub-fields
+ */
+ if (value instanceof Map<?, ?>)
+ {
+ for (Entry<?, ?> entry : ((Map<?, ?>) value).entrySet())
+ {
+ String[] attNames = new String[attName.length + 1];
+ System.arraycopy(attName, 0, attNames, 0, attName.length);
+ attNames[attName.length] = entry.getKey().toString();
+ addAttribute(featureType, description, entry.getValue(), attNames);
+ }
+ return;
+ }
+
+ String valueAsString = value.toString();
+ Map<String[], AttributeData> atts = attributes.get(featureType);
if (atts == null)
{
- atts = new TreeMap<String, AttributeData>(
- String.CASE_INSENSITIVE_ORDER);
+ atts = new TreeMap<>(comparator);
attributes.put(featureType, atts);
}
AttributeData attData = atts.get(attName);
attData = new AttributeData();
atts.put(attName, attData);
}
- attData.addInstance(description, value);
+ attData.addInstance(description, valueAsString);
}
/**
* @param attName
* @return
*/
- public String getDescription(String featureType, String attName)
+ public String getDescription(String featureType, String... attName)
{
String desc = null;
- Map<String, AttributeData> atts = attributes.get(featureType);
+ Map<String[], AttributeData> atts = attributes.get(featureType);
if (atts != null)
{
AttributeData attData = atts.get(attName);
* @param attName
* @return
*/
- public float[] getMinMax(String featureType, String attName)
+ public float[] getMinMax(String featureType, String... attName)
{
- Map<String, AttributeData> atts = attributes.get(featureType);
+ Map<String[], AttributeData> atts = attributes.get(featureType);
if (atts != null)
{
AttributeData attData = atts.get(attName);
* @param attName
* @param description
*/
- public void addDescription(String featureType, String attName,
- String description)
+ public void addDescription(String featureType, String description,
+ String... attName)
{
if (featureType == null || attName == null)
{
return;
}
- Map<String, AttributeData> atts = attributes.get(featureType);
+ Map<String[], AttributeData> atts = attributes.get(featureType);
if (atts == null)
{
- atts = new TreeMap<String, AttributeData>(
- String.CASE_INSENSITIVE_ORDER);
+ atts = new TreeMap<>(comparator);
attributes.put(featureType, atts);
}
AttributeData attData = atts.get(attName);
}
attData.addDescription(description);
}
+
+ /**
+ * Answers the datatype of the feature, which is one of Character, Number or
+ * Mixed (or null if not known), as discovered from values recorded.
+ *
+ * @param featureType
+ * @param attName
+ * @return
+ */
+ public Datatype getDatatype(String featureType, String... attName)
+ {
+ Map<String[], AttributeData> atts = attributes.get(featureType);
+ if (atts != null)
+ {
+ AttributeData attData = atts.get(attName);
+ if (attData != null)
+ {
+ return attData.getType();
+ }
+ }
+ return null;
+ }
}