Source Code Cross Referenced for Importer.java in  » GIS » geonetwork » org » fao » geonet » kernel » mef » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » GIS » geonetwork » org.fao.geonet.kernel.mef 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


001:        //=============================================================================
002:        //===	Copyright (C) 2001-2007 Food and Agriculture Organization of the
003:        //===	United Nations (FAO-UN), United Nations World Food Programme (WFP)
004:        //===	and United Nations Environment Programme (UNEP)
005:        //===
006:        //===	This program is free software; you can redistribute it and/or modify
007:        //===	it under the terms of the GNU General Public License as published by
008:        //===	the Free Software Foundation; either version 2 of the License, or (at
009:        //===	your option) any later version.
010:        //===
011:        //===	This program is distributed in the hope that it will be useful, but
012:        //===	WITHOUT ANY WARRANTY; without even the implied warranty of
013:        //===	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
014:        //===	General Public License for more details.
015:        //===
016:        //===	You should have received a copy of the GNU General Public License
017:        //===	along with this program; if not, write to the Free Software
018:        //===	Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
019:        //===
020:        //===	Contact: Jeroen Ticheler - FAO - Viale delle Terme di Caracalla 2,
021:        //===	Rome - Italy. email: geonetwork@osgeo.org
022:        //==============================================================================
023:
024:        package org.fao.geonet.kernel.mef;
025:
026:        import java.io.File;
027:        import java.io.FileOutputStream;
028:        import java.io.IOException;
029:        import java.io.InputStream;
030:        import java.util.Iterator;
031:        import java.util.List;
032:        import java.util.UUID;
033:        import jeeves.resources.dbms.Dbms;
034:        import jeeves.server.context.ServiceContext;
035:        import jeeves.utils.BinaryFile;
036:        import jeeves.utils.Log;
037:        import jeeves.utils.Xml;
038:        import org.fao.geonet.GeonetContext;
039:        import org.fao.geonet.constants.Geonet;
040:        import org.fao.geonet.kernel.AccessManager;
041:        import org.fao.geonet.kernel.DataManager;
042:        import org.fao.geonet.lib.Lib;
043:        import org.fao.geonet.util.ISODate;
044:        import org.jdom.Element;
045:
046:        import static org.fao.geonet.kernel.mef.MEFConstants.*;
047:
048:        //=============================================================================
049:
050:        class Importer {
051:            //--------------------------------------------------------------------------
052:            //---
053:            //--- API methods
054:            //---
055:            //--------------------------------------------------------------------------
056:
057:            public static int doImport(final ServiceContext context,
058:                    File mefFile) throws Exception {
059:                final GeonetContext gc = (GeonetContext) context
060:                        .getHandlerContext(Geonet.CONTEXT_NAME);
061:                final DataManager dm = gc.getDataManager();
062:
063:                final Dbms dbms = (Dbms) context.getResourceManager().open(
064:                        Geonet.Res.MAIN_DB);
065:
066:                final String id[] = { "" };
067:                final Element md[] = { null };
068:
069:                //--- import metadata from MEF file
070:
071:                MEFLib.visit(mefFile, new MEFVisitor() {
072:                    public void handleMetadata(Element metadata)
073:                            throws Exception {
074:                        Log.debug(Geonet.MEF, "Collecting metadata:\n"
075:                                + Xml.getString(metadata));
076:                        md[0] = metadata;
077:                    }
078:
079:                    //--------------------------------------------------------------------
080:
081:                    public void handleInfo(Element info) throws Exception {
082:                        Element general = info.getChild("general");
083:
084:                        String uuid = general.getChildText("uuid");
085:                        String createDate = general.getChildText("createDate");
086:                        String changeDate = general.getChildText("changeDate");
087:                        String source = general.getChildText("siteId");
088:                        String sourceName = general.getChildText("siteName");
089:                        String schema = general.getChildText("schema");
090:                        String isTemplate = general.getChildText("isTemplate")
091:                                .equals("true") ? "y" : "n";
092:                        String rating = general.getChildText("rating");
093:                        String popularity = general.getChildText("popularity");
094:
095:                        boolean dcore = schema.equals("dublin-core");
096:                        boolean fgdc = schema.equals("fgdc-std");
097:                        boolean iso115 = schema.equals("iso19115");
098:                        boolean iso139 = schema.equals("iso19139");
099:
100:                        if (!dcore && !fgdc && !iso115 && !iso139)
101:                            throw new Exception("Unknown schema format : "
102:                                    + schema);
103:
104:                        if (uuid == null) {
105:                            uuid = UUID.randomUUID().toString();
106:                            source = null;
107:
108:                            //--- set uuid inside metadata
109:                            md[0] = dm.setUUID(schema, uuid, md[0]);
110:                        } else {
111:                            if (sourceName == null)
112:                                sourceName = "???";
113:
114:                            Lib.sources.update(dbms, source, sourceName, true);
115:                        }
116:
117:                        Log.debug(Geonet.MEF, "Adding metadata with uuid="
118:                                + uuid);
119:
120:                        id[0] = dm.insertMetadataExt(dbms, schema, md[0],
121:                                context.getSerialFactory(), source, createDate,
122:                                changeDate, uuid, context.getUserSession()
123:                                        .getUserIdAsInt(), null);
124:
125:                        int iId = Integer.parseInt(id[0]);
126:
127:                        if (rating != null)
128:                            dbms.execute(
129:                                    "UPDATE Metadata SET rating=? WHERE id=?",
130:                                    new Integer(rating), iId);
131:
132:                        if (popularity != null)
133:                            dbms
134:                                    .execute(
135:                                            "UPDATE Metadata SET popularity=? WHERE id=?",
136:                                            new Integer(popularity), iId);
137:
138:                        dm.setTemplate(dbms, iId, isTemplate, null);
139:                        dm.setHarvested(dbms, iId, null);
140:
141:                        String pubDir = Lib.resource.getDir(context, "public",
142:                                id[0]);
143:                        String priDir = Lib.resource.getDir(context, "private",
144:                                id[0]);
145:
146:                        new File(pubDir).mkdirs();
147:                        new File(priDir).mkdirs();
148:
149:                        addCategories(dm, dbms, id[0], info
150:                                .getChild("categories"));
151:                        addPrivileges(dm, dbms, id[0], info
152:                                .getChild("privileges"));
153:                        dm.indexMetadata(dbms, id[0]);
154:                    }
155:
156:                    //--------------------------------------------------------------------
157:
158:                    public void handlePublicFile(String file,
159:                            String changeDate, InputStream is)
160:                            throws IOException {
161:                        Log.debug(Geonet.MEF, "Adding public file with name="
162:                                + file);
163:                        saveFile(context, id[0], "public", file, changeDate, is);
164:                    }
165:
166:                    //--------------------------------------------------------------------
167:
168:                    public void handlePrivateFile(String file,
169:                            String changeDate, InputStream is)
170:                            throws IOException {
171:                        Log.debug(Geonet.MEF, "Adding private file with name="
172:                                + file);
173:                        saveFile(context, id[0], "private", file, changeDate,
174:                                is);
175:                    }
176:                });
177:
178:                return Integer.parseInt(id[0]);
179:            }
180:
181:            //--------------------------------------------------------------------------
182:
183:            private static void saveFile(ServiceContext context, String id,
184:                    String access, String file, String changeDate,
185:                    InputStream is) throws IOException {
186:                String dir = Lib.resource.getDir(context, access, id);
187:
188:                File outFile = new File(dir, file);
189:                FileOutputStream os = new FileOutputStream(outFile);
190:                BinaryFile.copy(is, os, false, true);
191:
192:                outFile
193:                        .setLastModified(new ISODate(changeDate).getSeconds() * 1000);
194:            }
195:
196:            //--------------------------------------------------------------------------
197:            //--- Categories
198:            //--------------------------------------------------------------------------
199:
200:            private static void addCategories(DataManager dm, Dbms dbms,
201:                    String id, Element categ) throws Exception {
202:                List locCats = dbms.select("SELECT id,name FROM Categories")
203:                        .getChildren();
204:                List list = categ.getChildren("category");
205:
206:                for (Iterator j = list.iterator(); j.hasNext();) {
207:                    String catName = ((Element) j.next())
208:                            .getAttributeValue("name");
209:                    String catId = mapLocalEntity(locCats, catName);
210:
211:                    if (catId == null)
212:                        Log.debug(Geonet.MEF,
213:                                " - Skipping inesistent category : " + catName);
214:                    else {
215:                        //--- metadata category exists locally
216:
217:                        Log.debug(Geonet.MEF, " - Setting category : "
218:                                + catName);
219:                        dm.setCategory(dbms, id, catId);
220:                    }
221:                }
222:            }
223:
224:            //--------------------------------------------------------------------------
225:            //--- Privileges
226:            //--------------------------------------------------------------------------
227:
228:            private static void addPrivileges(DataManager dm, Dbms dbms,
229:                    String id, Element privil) throws Exception {
230:                List locGrps = dbms.select("SELECT id,name FROM Groups")
231:                        .getChildren();
232:                List list = privil.getChildren("group");
233:
234:                for (Object g : list) {
235:                    Element group = (Element) g;
236:                    String grpName = group.getAttributeValue("name");
237:                    String grpId = mapLocalEntity(locGrps, grpName);
238:
239:                    if (grpId == null)
240:                        Log.debug(Geonet.MEF, " - Skipping inesistent group : "
241:                                + grpName);
242:                    else {
243:                        //--- metadata group exists locally
244:
245:                        Log.debug(Geonet.MEF,
246:                                " - Setting privileges for group : " + grpName);
247:                        addOperations(dm, dbms, group, id, grpId);
248:                    }
249:                }
250:            }
251:
252:            //--------------------------------------------------------------------------
253:
254:            private static void addOperations(DataManager dm, Dbms dbms,
255:                    Element group, String id, String grpId) throws Exception {
256:                List opers = group.getChildren("operation");
257:
258:                for (int j = 0; j < opers.size(); j++) {
259:                    Element oper = (Element) opers.get(j);
260:                    String opName = oper.getAttributeValue("name");
261:
262:                    int opId = dm.getAccessManager().getPrivilegeId(opName);
263:
264:                    if (opId == -1)
265:                        Log.debug(Geonet.MEF, "   Skipping --> " + opName);
266:                    else {
267:                        //--- operation exists locally
268:
269:                        Log.debug(Geonet.MEF, "   Adding --> " + opName);
270:                        dm.setOperation(dbms, id, grpId, opId + "");
271:                    }
272:                }
273:            }
274:
275:            //--------------------------------------------------------------------------
276:            //---
277:            //--- Private methods
278:            //---
279:            //--------------------------------------------------------------------------
280:
281:            private static String mapLocalEntity(List entities, String name) {
282:                for (Object e : entities) {
283:                    Element entity = (Element) e;
284:
285:                    if (entity.getChildText("name").equals(name))
286:                        return entity.getChildText("id");
287:                }
288:
289:                return null;
290:            }
291:        }
292:
293:        //=============================================================================
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