GeomConverter/src/org/lcsim/geometry/util
diff -u -r1.7 -r1.8
--- IDDescriptor.java 22 Jul 2006 00:09:04 -0000 1.7
+++ IDDescriptor.java 22 Jul 2006 00:11:18 -0000 1.8
@@ -7,128 +7,130 @@
/**
* Takes a string of the form:
- *
+ *
* <pre>
* layer:7,system:3,barrel:3,theta:32:11,phi:11
* </pre>
- *
+ *
* and generates a parsed description of the fields.
- *
+ *
* @author tonyj
*/
public class IDDescriptor
{
- private int[] start;
- private int[] length;
- private String[] name;
- private Map<String,Integer> nameMap = new HashMap<String,Integer>();
- private int maxBit;
- private int nfields;
-
- public IDDescriptor(String idDescriptor) throws IDException
- {
- try
- {
- String[] fields = idDescriptor.split(",");
- //int n = fields.length;
- nfields = fields.length;
- start = new int[nfields];
- length = new int[nfields];
- name = new String[nfields];
-
- int pos = 0;
- for (int i = 0; i < nfields; i++)
- {
- String[] subFields = fields[i].split(":");
- if (subFields.length < 2 || subFields.length > 3)
- throw new RuntimeException("Invalid subfield: " + fields[i]);
- name[i] = subFields[0].trim();
- nameMap.put(name[i],i);
- if (subFields.length == 3)
- {
- start[i] = Integer.parseInt(subFields[1]);
- if (start[i] < 0)
- throw new RuntimeException(
- "Invalid field start position: " + start[i]);
- length[i] = Integer.parseInt(subFields[2]);
- if (length[i] == 0)
- throw new RuntimeException("Invalid field length: "
- + start[i]);
- } else
- {
- start[i] = pos;
- length[i] = Integer.parseInt(subFields[1]);
- }
- pos = start[i] + Math.abs(length[i]);
- if (pos > maxBit)
- maxBit = pos;
- }
- } catch (RuntimeException x)
- {
- throw new IDException("Invalid id descriptor: " + idDescriptor, x);
- }
- }
-
- public int fieldCount()
- {
- return name.length;
- }
- /**
- * Returns the index of the specified field.
- * @throws IllegalArgumentException If the requested field does not exist.
- */
- public int indexOf(String name) throws IllegalArgumentException
- {
- if (nameMap.get(name) != null)
- {
- return nameMap.get(name);
- }
- else
- {
- throw new IllegalArgumentException("Invalid field name: "+name);
- }
- }
-
- public int fieldStart(int index)
- {
- return start[index];
- }
-
- public int fieldLength(int index)
- {
- return Math.abs(length[index]);
- }
-
- public boolean isSigned(int index)
- {
- return length[index] < 0;
- }
-
- public String fieldName(int index)
- {
- return name[index];
- }
-
- public int getMaxBit()
- {
- return maxBit;
- }
-
- public int size()
- {
- return nfields;
- }
-
- public int maxIndex()
- {
- return nfields - 1;
- }
-
- public static class IDException extends Exception
- {
- IDException(String message, Throwable cause)
- {
- super(message, cause);
- }
- }
+ private int[] start;
+ private int[] length;
+ private String[] name;
+ private Map<String,Integer> nameMap = new HashMap<String,Integer>();
+ private int maxBit;
+ private int nfields;
+
+ public IDDescriptor(String idDescriptor) throws IDException
+ {
+ try
+ {
+ String[] fields = idDescriptor.split(",");
+ //int n = fields.length;
+ nfields = fields.length;
+ start = new int[nfields];
+ length = new int[nfields];
+ name = new String[nfields];
+
+ int pos = 0;
+ for (int i = 0; i < nfields; i++)
+ {
+ String[] subFields = fields[i].split(":");
+ if (subFields.length < 2 || subFields.length > 3)
+ throw new RuntimeException("Invalid subfield: " + fields[i]);
+ name[i] = subFields[0].trim();
+ nameMap.put(name[i],i);
+ if (subFields.length == 3)
+ {
+ start[i] = Integer.parseInt(subFields[1]);
+ if (start[i] < 0)
+ throw new RuntimeException(
+ "Invalid field start position: " + start[i]);
+ length[i] = Integer.parseInt(subFields[2]);
+ if (length[i] == 0)
+ throw new RuntimeException("Invalid field length: "
+ + start[i]);
+ }
+ else
+ {
+ start[i] = pos;
+ length[i] = Integer.parseInt(subFields[1]);
+ }
+ pos = start[i] + Math.abs(length[i]);
+ if (pos > maxBit)
+ maxBit = pos;
+ }
+ }
+ catch (RuntimeException x)
+ {
+ throw new IDException("Invalid id descriptor: " + idDescriptor, x);
+ }
+ }
+
+ public int fieldCount()
+ {
+ return name.length;
+ }
+ /**
+ * Returns the index of the specified field.
+ * @throws IllegalArgumentException If the requested field does not exist.
+ */
+ public int indexOf(String name) throws IllegalArgumentException
+ {
+ if (nameMap.get(name) != null)
+ {
+ return nameMap.get(name);
+ }
+ else
+ {
+ throw new IllegalArgumentException("Invalid field name: "+name);
+ }
+ }
+
+ public int fieldStart(int index)
+ {
+ return start[index];
+ }
+
+ public int fieldLength(int index)
+ {
+ return Math.abs(length[index]);
+ }
+
+ public boolean isSigned(int index)
+ {
+ return length[index] < 0;
+ }
+
+ public String fieldName(int index)
+ {
+ return name[index];
+ }
+
+ public int getMaxBit()
+ {
+ return maxBit;
+ }
+
+ public int size()
+ {
+ return nfields;
+ }
+
+ public int maxIndex()
+ {
+ return nfields - 1;
+ }
+
+ public static class IDException extends Exception
+ {
+ IDException(String message, Throwable cause)
+ {
+ super(message, cause);
+ }
+ }
}