Simplify getModifiers.

[cql-java-moved-to-github.git] / src / org / z3950 / zing / cql / CQLProxNode.java

diff --git a/src/org/z3950/zing/cql/CQLProxNode.java b/src/org/z3950/zing/cql/CQLProxNode.java
index b3a8dca..d0ac772 100644 (file)
--- a/src/org/z3950/zing/cql/CQLProxNode.java
+++ b/src/org/z3950/zing/cql/CQLProxNode.java
@@ -1,4 +1,4 @@
-// $Id: CQLProxNode.java,v 1.3 2002-11-06 20:13:45 mike Exp $
+// $Id: CQLProxNode.java,v 1.8 2007-06-27 17:02:01 mike Exp $
 
 package org.z3950.zing.cql;
 import java.util.Vector;
@@ -10,7 +10,7 @@ import java.util.Vector;
  * candidate records which are sufficiently close to each other, as
  * specified by a set of proximity parameters.
  *
- * @version    $Id: CQLProxNode.java,v 1.3 2002-11-06 20:13:45 mike Exp $
+ * @version    $Id: CQLProxNode.java,v 1.8 2007-06-27 17:02:01 mike Exp $
  */
 public class CQLProxNode extends CQLBooleanNode {
     ModifierSet ms;
@@ -58,12 +58,9 @@ public class CQLProxNode extends CQLBooleanNode {
      * Returns an array of the modifiers associated with a proximity
      * node.
      * @return
-     * An array of modifiers, each represented by a two-element
-     * <TT>Vector</TT>, in which element 0 is the modifier type
-     * (e.g. <TT>distance</TT> or <TT>ordering</TT>) and element 1 is
-     * the associated value (e.g. <TT>3</TT> or <TT>unordered</TT>).
+     * An array of Modifier objects.
      */
-    public Vector[] getModifiers() {
+    public Vector<Modifier> getModifiers() {
        return ms.getModifiers();
     }
 
@@ -71,7 +68,7 @@ public class CQLProxNode extends CQLBooleanNode {
        return ms.toCQL();
     }
 
-    String opXQL(int level) {
+    String opXCQL(int level) {
        return ms.toXCQL(level, "boolean");
     }
 
@@ -85,42 +82,98 @@ public class CQLProxNode extends CQLBooleanNode {
      * unit-code ::= integer.
      */
     String opPQF() {
+       int relCode = getRelCode();
+       int unitCode = getProxUnitCode();
+
+       String res = "prox " +
+           "0 " +
+           ms.modifier("distance") + " " +
+           (ms.modifier("ordering").equals("ordered") ? 1 : 0) + " " +
+           relCode + " " +
+           "1 " +
+           unitCode;
+
+       return res;
+    }
+
+    private int getRelCode() {
        String rel = ms.modifier("relation");
-       int relCode = 0;
        if (rel.equals("<")) {
-           relCode = 1;
+           return 1;
        } else if (rel.equals("<=")) {
-           relCode = 2;
+           return 2;
        } else if (rel.equals("=")) {
-           relCode = 3;
+           return 3;
        } else if (rel.equals(">=")) {
-           relCode = 4;
+           return 4;
        } else if (rel.equals(">")) {
-           relCode = 5;
+           return 5;
        } else if (rel.equals("<>")) {
-           relCode = 6;
+           return 6;
        }
+       return 0;
+    }
 
+    private int getProxUnitCode() {
        String unit = ms.modifier("unit");
-       int unitCode = 0;
        if (unit.equals("word")) {
-           unitCode = 2;
+           return 2;
        } else if (unit.equals("sentence")) {
-           unitCode = 3;
+           return 3;
        } else if (unit.equals("paragraph")) {
-           unitCode = 4;
+           return 4;
        } else if (unit.equals("element")) {
-           unitCode = 8;
+           return 8;
        }
+       return 0;
+    }
 
-       String res = "prox " +
-           "0 " +
-           ms.modifier("distance") + " " +
-           (ms.modifier("ordering").equals("ordered") ? 1 : 0) + " " +
-           relCode + " " +
-           "1 " +
-           unitCode;
-       
-       return res;
+
+    byte[] opType1() {
+       byte[] op = new byte[100];
+       int offset, value;
+       offset = putTag(CONTEXT, 46, CONSTRUCTED, op, 0); // Operator
+       op[offset++] = (byte)(0x80&0xff); // indefinite length
+
+       offset = putTag(CONTEXT, 3, CONSTRUCTED, op, offset); // prox
+       op[offset++] = (byte)(0x80&0xff); // indefinite length
+
+       offset = putTag(CONTEXT, 1, PRIMITIVE, op, offset); // exclusion
+       value = 0; // false
+       offset = putLen(numLen(value), op, offset);
+       offset = putNum(value, op, offset);
+
+       offset = putTag(CONTEXT, 2, PRIMITIVE, op, offset); // distance
+       value = Integer.parseInt(ms.modifier("distance"));
+       offset = putLen(numLen(value), op, offset);
+       offset = putNum(value, op, offset);
+
+       offset = putTag(CONTEXT, 3, PRIMITIVE, op, offset); // ordered
+       value = ms.modifier("ordering").equals("ordered") ? 1 : 0;
+       offset = putLen(numLen(value), op, offset);
+       offset = putNum(value, op, offset);
+
+       offset = putTag(CONTEXT, 4, PRIMITIVE, op, offset); // relationType
+       value = getRelCode();
+       offset = putLen(numLen(value), op, offset);
+       offset = putNum(value, op, offset);
+
+       offset = putTag(CONTEXT, 5, CONSTRUCTED, op, offset); // proximityUnitCode
+       op[offset++] = (byte)(0x80&0xff); // indefinite length
+       offset = putTag(CONTEXT, 1, PRIMITIVE, op, offset); // known
+       value = getProxUnitCode();
+       offset = putLen(numLen(value), op, offset);
+       offset = putNum(value, op, offset);
+       op[offset++] = 0x00; // end of proximityUnitCode
+       op[offset++] = 0x00;
+
+       op[offset++] = 0x00; // end of prox
+       op[offset++] = 0x00;
+       op[offset++] = 0x00; // end of Operator
+       op[offset++] = 0x00;
+
+       byte[] o = new byte[offset];
+       System.arraycopy(op, 0, o, 0, offset);
+       return o;
     }
 }