| 1 | /*
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| 2 | * GS2MacroResolver.java
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| 3 | * Copyright (C) 2005 New Zealand Digital Library, http://www.nzdl.org
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| 4 | *
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| 5 | * This program is free software; you can redistribute it and/or modify
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| 6 | * it under the terms of the GNU General Public License as published by
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| 7 | * the Free Software Foundation; either version 2 of the License, or
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| 8 | * (at your option) any later version.
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| 9 | *
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| 10 | * This program is distributed in the hope that it will be useful,
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| 11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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| 13 | * GNU General Public License for more details.
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| 14 | *
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| 15 | * You should have received a copy of the GNU General Public License
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| 16 | * along with this program; if not, write to the Free Software
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| 17 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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| 18 | */
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| 19 | package org.greenstone.gsdl3.util;
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| 20 |
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| 21 | import java.util.ArrayList;
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| 22 |
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| 23 | public class GS2MacroResolver
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| 24 | extends MacroResolver
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| 25 | {
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| 26 |
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| 27 | protected GDBMWrapper gdbm_src = null;
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| 28 |
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| 29 | // need to make it not add macros if they are already present
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| 30 | public GS2MacroResolver(GDBMWrapper gdbm) {
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| 31 | gdbm_src = gdbm;
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| 32 | }
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| 33 |
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| 34 |
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| 35 | public String resolve(String text, String lang, String scope,
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| 36 | String doc_oid) {
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| 37 | //System.err.println("resolving macros for "+text);
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| 38 | if (scope.equals(SCOPE_TEXT) && text_macros.size()==0) return text;
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| 39 | if (scope.equals(SCOPE_META) && metadata_macros.size() ==0) return text;
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| 40 |
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| 41 | DBInfo node_info = null;
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| 42 | DBInfo root_info = null;
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| 43 | boolean new_lang = false;
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| 44 | if (this.lang == null || !this.lang.equals(lang) ) {
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| 45 | new_lang = true;
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| 46 | this.lang = lang;
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| 47 | }
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| 48 |
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| 49 | ArrayList macros;
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| 50 | if (scope.equals(SCOPE_TEXT)) {
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| 51 | macros = text_macros;
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| 52 | } else {
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| 53 | macros = metadata_macros;
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| 54 | }
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| 55 |
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| 56 | for (int i=0; i<macros.size(); i++) {
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| 57 | Macro m = (Macro)macros.get(i);
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| 58 | switch (m.type) {
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| 59 | case TYPE_DICT:
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| 60 | if (m.text==null || new_lang) {
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| 61 | Dictionary dict = new Dictionary(m.bundle, lang);
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| 62 | m.text = dict.get(m.key, null);
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| 63 | }
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| 64 | // now drop through to text case
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| 65 | case TYPE_TEXT:
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| 66 | text = text.replaceAll(m.macro, m.text);
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| 67 | break;
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| 68 | case TYPE_META:
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| 69 | if (text.indexOf(m.macro) != -1) {
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| 70 | if (node_info == null) {
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| 71 | node_info = gdbm_src.getInfo(doc_oid);
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| 72 | if (node_info == null) {
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| 73 | break;
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| 74 | }
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| 75 | }
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| 76 |
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| 77 | String value = node_info.getInfo(m.text);
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| 78 | if (value != null) {
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| 79 | text = text.replaceAll(m.macro, value);
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| 80 | } else {
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| 81 | // try the root node
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| 82 | if (root_info == null && !OID.isTop(doc_oid)) {
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| 83 | root_info = gdbm_src.getInfo(OID.getTop(doc_oid));
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| 84 | }
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| 85 | if (root_info == null) break;
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| 86 | value = root_info.getInfo(m.text);
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| 87 | if (value != null) {
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| 88 | text = text.replaceAll(m.macro, value);
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| 89 | }
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| 90 | }
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| 91 | }
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| 92 |
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| 93 | break;
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| 94 | } // switch
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| 95 |
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| 96 | }
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| 97 |
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| 98 | return text;
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| 99 |
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| 100 | }
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| 101 |
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| 102 | }
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