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/*
* EjbDataSourceManager.java
*
* Created on May 4, 2004, 1:13 PM
*/
package org.netbeans.modules.visualweb.ejb;
import java.beans.PropertyChangeEvent;
import java.beans.PropertyChangeListener;
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.OutputStreamWriter;
import java.util.Arrays;
import java.util.LinkedHashSet;
import java.util.List;
import java.util.Set;
import java.util.logging.Level;
import org.netbeans.api.project.Project;
import org.netbeans.api.project.ui.OpenProjects;
import org.netbeans.modules.visualweb.ejb.datamodel.EjbDataModel;
import org.netbeans.modules.visualweb.ejb.load.EjbDataSourceXmlCreator;
import org.netbeans.modules.visualweb.ejb.load.EjbDataSourceXmlParser;
import org.netbeans.modules.visualweb.ejb.load.EjbLoadException;
import org.netbeans.modules.visualweb.ejb.nodes.EjbLibReferenceHelper;
import org.netbeans.modules.visualweb.ejb.util.Util;
import org.openide.ErrorManager;
import org.openide.filesystems.FileUtil;
/**
* To load and save the data model to xml file
*
* @author cao
*/
public class EjbDataSourceManager {
public static final String EJB_DATA_SUB_DIR = "ejb-sources"; // NOI18N
// Singlton
private static EjbDataSourceManager mgr = new EjbDataSourceManager();
public static EjbDataSourceManager getInstance() {
return mgr;
}
private EjbDataSourceManager() {
}
/**
* Load the Ejb modules from the saved xml files
*
* @throws IOException
*/
public void load() throws EjbLoadException, IOException {
// Load all the information from the xml file if there is one
String ejbDataSrcFileName = getUserDirDataSrcFileName();
File file = new File(ejbDataSrcFileName);
if (file.exists()) {
EjbDataSourceXmlParser parser = new EjbDataSourceXmlParser(ejbDataSrcFileName);
EjbDataModel.getInstance().addEjbGroups(parser.parse());
}
// Since everything just loaded, reset the modified flag in the data model
EjbDataModel.getInstance().resetModifiedFlag();
// Listen on the project open event so that we can check whether any ejb related
// jar files needed to be updated
OpenProjects.getDefault().addPropertyChangeListener(new PropertyChangeListener() {
public void propertyChange(PropertyChangeEvent evt) {
if (OpenProjects.PROPERTY_OPEN_PROJECTS.equals(evt.getPropertyName())) {
List<Project> oldOpenProjectsList = Arrays
.asList((Project[]) evt.getOldValue());
List<Project> newOpenProjectsList = Arrays
.asList((Project[]) evt.getNewValue());
Set<Project> openedProjectsSet = new LinkedHashSet<Project>(newOpenProjectsList);
openedProjectsSet.removeAll(oldOpenProjectsList);
Project[] openedProjectsArray = openedProjectsSet
.toArray(new Project[openedProjectsSet.size()]);
EjbLibReferenceHelper.syncArchiveRefs(openedProjectsArray);
}
}
});
}
/**
* Save the data model to the xml files
*/
public void save() {
// Do a save only if there is a modification in the data model
if (!EjbDataModel.getInstance().isModified())
return;
String ejbDataSrcFileName;
try {
ejbDataSrcFileName = getUserDirDataSrcFileName();
} catch (IOException e) {
Util.getLogger().log(Level.SEVERE, "Unable to save EJB datasource state", e);
return;
}
try {
File file = new File(ejbDataSrcFileName);
if (!file.exists())
file.createNewFile();
OutputStreamWriter outputStreamWriter = new OutputStreamWriter(new FileOutputStream(
file), "UTF-8"); // No I18N
BufferedWriter bufferWriter = new BufferedWriter(outputStreamWriter);
EjbDataSourceXmlCreator creator = new EjbDataSourceXmlCreator(EjbDataModel
.getInstance(), bufferWriter);
creator.toXml();
bufferWriter.flush();
bufferWriter.close();
} catch (Exception ex) {
ErrorManager.getDefault().getInstance(
"org.netbeans.modules.visualweb.ejb.EjbDataSourceManager").log(
ErrorManager.ERROR,
"Failed to save ejb datasource to file: " + ejbDataSrcFileName);
ex.printStackTrace();
}
}
private static String getUserDirDataSrcFileName() throws IOException {
File ejbDataSourceDir = new File(Util.getEjbStateDir(), "ejb-datasource");
if (!ejbDataSourceDir.isDirectory()) {
// XXX This is broken since it does not update an existing ejbsources.xml file
// with the updated location
// Try to migrate EJB DataSources from old to new location
String userDir = System.getProperty("netbeans.user"); // NOI18N
if (userDir != null) {
File legacyDir = new File(userDir, "ejb-datasource"); // NOI18N
if (legacyDir.exists()) {
Util.copyFileRecursive(legacyDir, ejbDataSourceDir);
// Try to remove the old directory
try {
FileUtil.toFileObject(legacyDir).delete();
} catch (Exception e) {
Util.getLogger().log(Level.WARNING,
"Unable to remove legacy ejb-datasource dir", e);
}
}
}
}
return new File(ejbDataSourceDir, "ejbsources.xml").getAbsolutePath();
}
}
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