1 // $Id: ModifierSet.java,v 1.2 2002-11-02 01:20:42 mike Exp $
3 package org.z3950.zing.cql;
4 import java.util.Vector;
5 import java.lang.StringBuffer;
8 * Represents a base String and a set of modifier Strings.
10 * This class is used as a workhorse delegate by both CQLRelation and
11 * CQLProxNode - two functionally very separate classes that happen to
12 * require the same data structures and functionality.
14 * @version $Id: ModifierSet.java,v 1.2 2002-11-02 01:20:42 mike Exp $
16 public class ModifierSet {
20 public ModifierSet(String base) {
22 modifiers = new Vector();
25 public void addModifier(String type, String value) {
26 Vector modifier = new Vector();
29 modifiers.add(modifier);
32 public Vector[] getModifiers() {
33 int n = modifiers.size();
34 Vector[] res = new Vector[n];
35 for (int i = 0; i < n; i++) {
36 res[i] = (Vector) modifiers.get(i);
42 public String toXCQL(int level, String topLevelElement) {
43 StringBuffer buf = new StringBuffer();
44 buf.append (Utils.indent(level) + "<" + topLevelElement + ">\n" +
45 Utils.indent(level+1) + "<value>" + Utils.xq(base) +
47 Vector[] mods = getModifiers();
48 if (mods.length > 0) {
49 buf.append(Utils.indent(level+1) + "<modifiers>\n");
50 for (int i = 0; i < mods.length; i++) {
51 Vector modifier = mods[i];
52 buf.append(Utils.indent(level+2)).
54 if (modifier.get(0) != null)
56 append(Utils.xq((String) modifier.get(0))).
58 buf.append("<value>").
59 append(Utils.xq((String) modifier.get(1))).
61 buf.append("</modifier>\n");
63 buf.append(Utils.indent(level+1) + "</modifiers>\n");
65 buf.append(Utils.indent(level) + "</" + topLevelElement + ">\n");
66 return buf.toString();
69 public String toCQL() {
70 StringBuffer buf = new StringBuffer(base);
71 Vector[] mods = getModifiers();
72 for (int i = 0; i < mods.length; i++) {
73 buf.append("/").append(mods[i].get(1));
76 return buf.toString();
79 public static void main(String[] args) {
80 if (args.length < 1) {
81 System.err.println("Usage: ModifierSet <base> [<type> <name>]...");
85 ModifierSet res = new ModifierSet(args[0]);
86 for (int i = 1; i < args.length; i += 2) {
87 res.addModifier(args[i], args[i+1]);
90 System.out.println(res.toCQL());