Implement new, wider toXCQL() API.

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

diff --git a/src/org/z3950/zing/cql/CQLBooleanNode.java b/src/org/z3950/zing/cql/CQLBooleanNode.java
index d761463..9462914 100644 (file)
--- a/src/org/z3950/zing/cql/CQLBooleanNode.java
+++ b/src/org/z3950/zing/cql/CQLBooleanNode.java
@@ -1,4 +1,4 @@
-// $Id: CQLBooleanNode.java,v 1.11 2002-11-20 17:56:22 mike Exp $
+// $Id: CQLBooleanNode.java,v 1.17 2007-07-03 13:40:13 mike Exp $
 
 package org.z3950.zing.cql;
 import java.util.Properties;
@@ -8,11 +8,9 @@ import java.util.Vector;
 /**
  * Represents a boolean node in a CQL parse-tree.
  *
- * @version    $Id: CQLBooleanNode.java,v 1.11 2002-11-20 17:56:22 mike Exp $
+ * @version    $Id: CQLBooleanNode.java,v 1.17 2007-07-03 13:40:13 mike Exp $
  */
 public abstract class CQLBooleanNode extends CQLNode {
-    CQLBooleanNode() {}                // prevent javadoc from documenting this
-
     /**
      * The root of a parse-tree representing the left-hand side.
      */ 
@@ -23,29 +21,38 @@ public abstract class CQLBooleanNode extends CQLNode {
      */ 
     public CQLNode right;
 
-    public String toXCQL(int level, Vector prefixes) {
+    /**
+     * The set of modifiers that are applied to this boolean.
+     */
+    public ModifierSet ms;
+
+    protected CQLBooleanNode(CQLNode left, CQLNode right, ModifierSet ms) {
+       this.left = left;
+       this.right = right;
+       this.ms = ms;
+    }
+
+    public String toXCQL(int level, Vector prefixes, Vector sortkeys) {
+       if (sortkeys != null)
+           throw new Error("CQLBooleanNode.toXCQL() called with sortkeys");
+
        return (indent(level) + "<triple>\n" +
                renderPrefixes(level+1, prefixes) +
-               opXCQL(level+1) +
+               ms.toXCQL(level+1, "boolean") +
                indent(level+1) + "<leftOperand>\n" +
-               left.toXCQL(level+2, new Vector()) +
+               left.toXCQL(level+2) +
                indent(level+1) + "</leftOperand>\n" +
                indent(level+1) + "<rightOperand>\n" +
-               right.toXCQL(level+2, new Vector()) +
+               right.toXCQL(level+2) +
                indent(level+1) + "</rightOperand>\n" +
                indent(level) + "</triple>\n");
     }
 
-    // Represents the boolean operation itself: overridden for CQLProxNode
-    String opXCQL(int level) {
-       return(indent(level) + "<boolean>\n" +
-              indent(level+1) + "<value>" + op() + "</value>\n" +
-              indent(level) + "</boolean>\n");
-    }
-
     public String toCQL() {
        // ### We don't always need parens around the operands
-       return "(" + left.toCQL() + ") " + op() + " (" + right.toCQL() + ")";
+       return ("(" + left.toCQL() + ")" +
+               " " + ms.toCQL() + " " +
+               "(" + right.toCQL() + ")");
     }
 
     public String toPQF(Properties config) throws PQFTranslationException {
@@ -55,7 +62,30 @@ public abstract class CQLBooleanNode extends CQLNode {
     }
 
     // represents the operation for PQF: overridden for CQLProxNode
-    String opPQF() { return op(); }
+    String opPQF() { return ms.getBase(); }
+
+    public byte[] toType1BER(Properties config) throws PQFTranslationException {
+        System.out.println("in CQLBooleanNode.toType1BER(): PQF=" +
+                          toPQF(config));
+        byte[] rpn1 = left.toType1BER(config);
+        byte[] rpn2 = right.toType1BER(config);
+        byte[] op = opType1();
+        byte[] rpnStructure = new byte[rpn1.length+rpn2.length+op.length+4];
+        
+       // rpnRpnOp
+        int offset = putTag(CONTEXT, 1, CONSTRUCTED, rpnStructure, 0);
+
+        rpnStructure[offset++] = (byte)(0x80&0xff); // indefinite length
+        System.arraycopy(rpn1, 0, rpnStructure, offset, rpn1.length);
+        offset += rpn1.length;
+        System.arraycopy(rpn2, 0, rpnStructure, offset, rpn2.length);
+        offset += rpn2.length;
+        System.arraycopy(op, 0, rpnStructure, offset, op.length);
+        offset += op.length;
+        rpnStructure[offset++] = 0x00; // end rpnRpnOp
+        rpnStructure[offset++] = 0x00;
+        return rpnStructure;
+    }
 
-    abstract String op();
+    abstract byte[] opType1();
 }