[12188] | 1 | /*
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| 2 | * GS3MGPPRetrieve.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.service;
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| 20 |
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| 21 | // Greenstone classes
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| 22 | import org.greenstone.mgpp.*;
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| 23 | import org.greenstone.gsdl3.core.GSException;
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| 24 | import org.greenstone.gsdl3.util.GSFile;
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| 25 | import org.greenstone.gsdl3.util.GSXML;
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| 26 | import org.greenstone.gsdl3.util.GS3OID;
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| 27 |
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| 28 | // XML classes
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| 29 | import org.w3c.dom.Element;
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| 30 | import org.w3c.dom.Text;
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| 31 |
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| 32 | // General Java classes
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| 33 | import java.io.File;
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| 34 |
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| 35 | public class GS3MGPPRetrieve
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| 36 | extends AbstractGS3DocumentRetrieve
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| 37 | {
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| 38 | // Elements used in the config file that are specific to this class
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| 39 | private static final String DEFAULT_LEVEL_ELEM = "defaultLevel";
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| 40 |
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| 41 | private MGPPWrapper mgpp_src = null;
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| 42 |
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| 43 | private String default_level = null;
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| 44 | private String mgpp_textdir = null;
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| 45 |
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| 46 | public GS3MGPPRetrieve() {
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| 47 | this.mgpp_src = new MGPPWrapper();
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| 48 | }
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| 49 |
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| 50 | public void cleanUp() {
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| 51 | super.cleanUp();
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| 52 | this.mgpp_src.unloadIndexData();
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| 53 | }
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| 54 |
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| 55 | /** configure this service */
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| 56 | public boolean configure(Element info, Element extra_info)
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| 57 | {
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| 58 | // Do generic configuration
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| 59 | if (!super.configure(info, extra_info)) {
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| 60 | return false;
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| 61 | }
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| 62 |
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| 63 | // Do specific configuration
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| 64 | System.out.println("Configuring GS3MGPPRetrieve...");
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| 65 |
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| 66 | // Get the default level out of <defaultLevel> (buildConfig.xml)
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| 67 | Element def = (Element) GSXML.getChildByTagName(info, DEFAULT_LEVEL_ELEM);
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| 68 | if (def != null) {
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| 69 | this.default_level = def.getAttribute(GSXML.NAME_ATT);
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| 70 | }
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| 71 | if (this.default_level == null || this.default_level.equals("")) {
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| 72 | System.err.println("Error: default level not specified!");
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| 73 | return false;
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| 74 | }
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| 75 | // System.out.println("Default level: " + default_level_);
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| 76 |
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| 77 | // The location of the MGPP text files
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| 78 | mgpp_textdir = GSFile.collectionBaseDir(this.site_home, this.cluster_name) +
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| 79 | File.separatorChar + GSFile.collectionTextPath(this.index_stem);
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| 80 |
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| 81 | return true;
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| 82 | }
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| 83 |
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| 84 | /** returns the content of a node
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| 85 | * should return a nodeContent element:
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| 86 | * <nodeContent>text content or other elements</nodeContent>
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| 87 | */
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| 88 | protected Element getNodeContent(String doc_id) throws GSException {
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| 89 | if (GS3OID.isDocTop(doc_id) && database.isHierarchicalDocument(doc_id)) {
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| 90 | // if we have a whole doc id, and the document is hierarchical,
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| 91 | // we want to change the id to be the top id of the section
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| 92 | // hierarchy
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| 93 | doc_id = GS3OID.createOID(doc_id, "1");
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| 94 | }
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| 95 |
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| 96 | String doc_num = this.database.OID2MGNum(doc_id);
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| 97 | // doc nums have the index prefixed
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| 98 | doc_num = doc_num.substring(doc_num.indexOf(".")+1);
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| 99 | int doc_int = Integer.parseInt(doc_num);
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| 100 |
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| 101 | Element content_node = this.doc.createElement(GSXML.NODE_CONTENT_ELEM);
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| 102 |
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| 103 | String doc_content = "";
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| 104 | try {
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| 105 | doc_content = this.mgpp_src.getDocument(this.mgpp_textdir,
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| 106 | this.default_level,
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| 107 | doc_int);
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| 108 | doc_content = resolveRelativeLinks(doc_content, doc_id);
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| 109 | } catch (Exception e) {
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| 110 | System.out.println("exception happended with mgpp_src.getDocument()" + e);
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| 111 | doc_content = "this is the content for section hash id "+ doc_id+", mgpp doc num "+doc_int+"\n";
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| 112 | }
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| 113 |
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| 114 | Text t = this.doc.createTextNode(doc_content);
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| 115 | content_node.appendChild(t);
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| 116 | return content_node;
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| 117 |
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| 118 | }
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| 119 |
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| 120 |
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| 121 | }
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