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NIHVIVO-177 standardize about text

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bjl23 2010-04-02 00:58:24 +00:00
parent 84cade7623
commit e8e3401539
1 changed files with 58 additions and 4 deletions
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62
webapp/src/edu/cornell/mannlib/vitro/webapp/servlet/setup/UpdateKnowledgeBase.java
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@ -2,13 +2,26 @@
package edu.cornell.mannlib.vitro.webapp.servlet.setup;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.util.Iterator;
import javax.servlet.ServletContext;
import javax.servlet.ServletContextEvent;
import javax.servlet.ServletContextListener;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import com.hp.hpl.jena.ontology.OntModel;
import com.hp.hpl.jena.rdf.model.Model;
import com.hp.hpl.jena.rdf.model.ModelFactory;
import com.hp.hpl.jena.rdf.model.RDFNode;
import com.hp.hpl.jena.rdf.model.Resource;
import com.hp.hpl.jena.rdf.model.Statement;
import com.hp.hpl.jena.rdf.model.StmtIterator;
import com.hp.hpl.jena.shared.Lock;
import edu.cornell.mannlib.vitro.webapp.dao.WebappDaoFactory;
import edu.cornell.mannlib.vitro.webapp.dao.jena.JenaBaseDao;
@ -24,7 +37,9 @@ import edu.cornell.mannlib.vitro.webapp.ontology.update.OntologyUpdater;
*
*/
public class UpdateKnowledgeBase implements ServletContextListener {
private final static Log log = LogFactory.getLog(UpdateKnowledgeBase.class);
private final String DATA_DIR = "/WEB-INF/ontologies/update/";
private final String LOG_DIR = "logs/";
private final String REMOVED_DATA_DIR = "removedData/";
@ -39,11 +54,12 @@ public class UpdateKnowledgeBase implements ServletContextListener {
private final String REMOVED_DATA_FILE = DATA_DIR + REMOVED_DATA_DIR +
"removedData.rdf";
private final String SPARQL_CONSTRUCTS_DIR = DATA_DIR + "sparqlConstructs/";
private final String MISC_REPLACEMENTS_FILE = DATA_DIR + "miscReplacements.rdf";
public void contextInitialized(ServletContextEvent sce) {
/*
/*
ServletContext ctx = sce.getServletContext();
OntModelSelector oms = new SimpleOntModelSelector(
@ -65,6 +81,7 @@ public class UpdateKnowledgeBase implements ServletContextListener {
settings.setDefaultNamespace(wadf.getDefaultNamespace());
try {
doMiscAppMetadataReplacements(ctx.getRealPath(MISC_REPLACEMENTS_FILE), oms);
(new OntologyUpdater(settings)).update();
} catch (IOException ioe) {
String errMsg = "IOException updating knowledge base " +
@ -80,6 +97,43 @@ public class UpdateKnowledgeBase implements ServletContextListener {
}
/**
* Replace any triple X P S in the application metadata model
* with X P T where P and T are specified in the input file
* @param filename containing replacement values
* @param OntModelSelector oms
*/
private void doMiscAppMetadataReplacements(String filename, OntModelSelector oms) {
try {
Model replacementValues = ModelFactory.createDefaultModel();
OntModel applicationMetadataModel = oms.getApplicationMetadataModel();
FileInputStream fis = new FileInputStream(new File(filename));
replacementValues.read(fis, null);
StmtIterator replaceIt = replacementValues.listStatements();
while (replaceIt.hasNext()) {
Statement replacement = replaceIt.nextStatement();
applicationMetadataModel.enterCriticalSection(Lock.WRITE);
try {
Iterator<Resource> resIt =
applicationMetadataModel.listSubjectsWithProperty(
replacement.getPredicate(), replacement.getObject());
while (resIt.hasNext()) {
Resource subj = resIt.next();
applicationMetadataModel.removeAll(
subj, replacement.getPredicate(), (RDFNode) null);
applicationMetadataModel.add(
subj, replacement.getPredicate(), replacement.getObject());
}
} finally {
}
}
} catch (Exception e) {
log.error("Error performing miscellaneous application metadata " +
" replacements.", e);
}
}
public void contextDestroyed(ServletContextEvent arg0) {
// nothing to do
}