-// $Id: CQLTermNode.java,v 1.16 2002-12-11 00:30:02 mike Exp $
+// $Id: CQLTermNode.java,v 1.23 2007-06-06 12:22:01 mike Exp $
package org.z3950.zing.cql;
import java.util.Properties;
* these must be provided - you can't have a qualifier without a
* relation or vice versa.
*
- * @version $Id: CQLTermNode.java,v 1.16 2002-12-11 00:30:02 mike Exp $
+ * @version $Id: CQLTermNode.java,v 1.23 2007-06-06 12:22:01 mike Exp $
*/
public class CQLTermNode extends CQLNode {
private String qualifier;
public CQLRelation getRelation() { return relation; }
public String getTerm() { return term; }
+ private static boolean isResultSetQualifier(String qual) {
+ return (qual.equals("srw.resultSet") ||
+ qual.equals("srw.resultSetId") ||
+ qual.equals("srw.resultSetName"));
+ }
+
+ public String getResultSetName() {
+ if (isResultSetQualifier(qualifier))
+ return term;
+ else
+ return null;
+ }
+
public String toXCQL(int level, Vector prefixes) {
return (indent(level) + "<searchClause>\n" +
renderPrefixes(level+1, prefixes) +
indent(level+1) + "<index>" + xq(qualifier) + "</index>\n" +
- relation.toXCQL(level+1, new Vector()) +
+ relation.toXCQL(level+1, new Vector<String>()) +
indent(level+1) + "<term>" + xq(term) + "</term>\n" +
indent(level) + "</searchClause>\n");
}
String quotedTerm = maybeQuote(term);
String res = quotedTerm;
- if (!qualifier.equalsIgnoreCase("srw.serverChoice")) {
+ if (qualifier != null &&
+ !qualifier.equalsIgnoreCase("srw.serverChoice")) {
// ### We don't always need spaces around `relation'.
res = quotedQualifier + " " + relation.toCQL() + " " + quotedTerm;
}
// regards truncation of the term and generation of truncation
// attributes. Change the interface to fix this.
private Vector getAttrs(Properties config) throws PQFTranslationException {
- Vector attrs = new Vector();
+ Vector<String> attrs = new Vector<String>();
// Do this first so that if any other truncation or
// completeness attributes are generated, they "overwrite"
}
public String toPQF(Properties config) throws PQFTranslationException {
- if (qualifier.equals("srw.resultSet")) {
+ if (isResultSetQualifier(qualifier)) {
// Special case: ignore relation, modifiers, wildcards, etc.
- // There's parallel code in toType1()
+ // There's parallel code in toType1BER()
return "@set " + maybeQuote(term);
}
}
static String maybeQuote(String str) {
+ if (str == null)
+ return null;
+
// There _must_ be a better way to make this test ...
if (str.length() == 0 ||
str.indexOf('"') != -1 ||
return str;
}
- public byte[] toType1(Properties config) throws PQFTranslationException {
- if (qualifier.equals("srw.resultSet")) {
+ public byte[] toType1BER(Properties config) throws PQFTranslationException {
+ if (isResultSetQualifier(qualifier)) {
// Special case: ignore relation, modifiers, wildcards, etc.
// There's parallel code in toPQF()
byte[] operand = new byte[term.length()+100];
if (len > 0 && text.substring(len-1, len).equals("^"))
text = text.substring(0, len-1);
- String attr, attrList, term = maybeQuote(text);
- System.out.println("in CQLTermNode.toType101(): PQF=" + toPQF(config));
+ String attr, attrList, term = text;
byte[] operand = new byte[text.length()+100];
int i, j, offset, type, value;
offset = putTag(CONTEXT, 0, CONSTRUCTED, operand, 0); // op
operand[offset++] = (byte)(0x80&0xff); // indefinite length
offset = putTag(CONTEXT, 44, CONSTRUCTED, operand, offset); // AttributeList
operand[offset++] = (byte)(0x80&0xff); // indefinite length
- offset = putTag(UNIVERSAL, SEQUENCE, CONSTRUCTED, operand, offset);
- operand[offset++] = (byte)(0x80&0xff);
Vector attrs = getAttrs(config);
for(i = 0; i < attrs.size(); i++) {
while (st.hasMoreTokens()) {
attr = st.nextToken();
j = attr.indexOf('=');
+ offset = putTag(UNIVERSAL, SEQUENCE, CONSTRUCTED, operand, offset);
+ operand[offset++] = (byte)(0x80&0xff);
offset = putTag(CONTEXT, 120, PRIMITIVE, operand, offset);
type = Integer.parseInt(attr.substring(0, j));
offset = putLen(numLen(type), operand, offset);
value = Integer.parseInt(attr.substring(j+1));
offset = putLen(numLen(value), operand, offset);
offset = putNum(value, operand, offset);
+ operand[offset++] = 0x00; // end of SEQUENCE
+ operand[offset++] = 0x00;
}
}
- operand[offset++] = 0x00; // end of SEQUENCE
- operand[offset++] = 0x00;
operand[offset++] = 0x00; // end of AttributeList
operand[offset++] = 0x00;