X-Git-Url: http://jsfdemo.indexdata.com/?a=blobdiff_plain;f=src%2Forg%2Fz3950%2Fzing%2Fcql%2FCQLTermNode.java;h=9e7a7b91691fcbbd9359969023b3ea025885be1a;hb=d524fe097f11c7ab8a16ac98e1dedd3a3e24c993;hp=fda71474ade6a65488c1a043f2cf317d5d4952be;hpb=f8154c71944186a9b64ddb782082a2026c5a912f;p=cql-java-moved-to-github.git
diff --git a/src/org/z3950/zing/cql/CQLTermNode.java b/src/org/z3950/zing/cql/CQLTermNode.java
index fda7147..9e7a7b9 100644
--- a/src/org/z3950/zing/cql/CQLTermNode.java
+++ b/src/org/z3950/zing/cql/CQLTermNode.java
@@ -1,26 +1,40 @@
-// $Id: CQLTermNode.java,v 1.6 2002-10-31 22:22:01 mike Exp $
+// $Id: CQLTermNode.java,v 1.8 2002-11-06 20:13:45 mike Exp $
package org.z3950.zing.cql;
+import java.util.Properties;
+import java.util.Vector;
/**
* Represents a terminal node in a CQL parse-tree.
- * ##
+ * A term node consists of the term String itself, together with,
+ * optionally, a qualifier string and a relation. Neither or both of
+ * these must be provided - you can't have a qualifier without a
+ * relation or vice versa.
*
- * @version $Id: CQLTermNode.java,v 1.6 2002-10-31 22:22:01 mike Exp $
+ * @version $Id: CQLTermNode.java,v 1.8 2002-11-06 20:13:45 mike Exp $
*/
public class CQLTermNode extends CQLNode {
private String qualifier;
private CQLRelation relation;
private String term;
+ /**
+ * Creates a new term node with the specified qualifier,
+ * relation and term. The first two may be
+ * null, but the term may not.
+ */
public CQLTermNode(String qualifier, CQLRelation relation, String term) {
this.qualifier = qualifier;
this.relation = relation;
this.term = term;
}
- String toXCQL(int level) {
+ public String getQualifier() { return qualifier; }
+ public CQLRelation getRelation() { return relation; }
+ public String getTerm() { return term; }
+
+ public String toXCQL(int level) {
return (indent(level) + "\n" +
indent(level+1) + "" + xq(qualifier) + "\n" +
relation.toXCQL(level+1) +
@@ -28,7 +42,7 @@ public class CQLTermNode extends CQLNode {
indent(level) + "\n");
}
- String toCQL() {
+ public String toCQL() {
String quotedQualifier = maybeQuote(qualifier);
String quotedTerm = maybeQuote(term);
String res = quotedTerm;
@@ -41,6 +55,68 @@ public class CQLTermNode extends CQLNode {
return res;
}
+ public String toPQF(Properties config) throws PQFTranslationException {
+ Vector attrs = new Vector();
+
+ String attr;
+ attr = config.getProperty("qualifier." + qualifier);
+ if (attr == null)
+ throw new UnknownQualifierException(qualifier);
+ attrs.add(attr);
+
+ String rel = relation.getBase();
+ if (rel.equals("=")) {
+ rel = "eq";
+ } else if (rel.equals("<=")) {
+ rel = "le";
+ } else if (rel.equals(">=")) {
+ rel = "ge";
+ }
+ // ### Handling "any" and "all" properly would involve breaking
+ // the string down into a bunch of individual words and ORring
+ // or ANDing them together. Another day.
+ attr = config.getProperty("relation." + rel);
+ if (attr == null)
+ throw new UnknownRelationException(rel);
+ attrs.add(attr);
+
+ String[] mods = relation.getModifiers();
+ for (int i = 0; i < mods.length; i++) {
+ attr = config.getProperty("relationModifier." + mods[i]);
+ if (attr == null)
+ throw new UnknownRelationModifierException(mods[i]);
+ attrs.add(attr);
+ }
+
+ String pos = "unanchored";
+ String text = term;
+ if (text.length() > 0 && text.substring(0, 1).equals("^")) {
+ text = text.substring(1);
+ pos = "anchored";
+ }
+ attr = config.getProperty("position." + pos);
+ if (attr == null)
+ throw new UnknownPositionException(pos);
+ attrs.add(attr);
+
+ attr = config.getProperty("structure." + rel);
+ if (attr == null)
+ attr = config.getProperty("structure.*");
+ attrs.add(attr);
+
+ attr = config.getProperty("always");
+ if (attr != null)
+ attrs.add(attr);
+
+ String s = "";
+ for (int i = 0; i < attrs.size(); i++) {
+ attr = (String) attrs.get(i);
+ s += "@attr " + Utils.replaceString(attr, " ", " @attr ") + " ";
+ }
+
+ return s + maybeQuote(text);
+ }
+
static String maybeQuote(String str) {
// There _must_ be a better way to make this test ...
if (str.length() == 0 ||