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/*******************************************************************************
* Copyright (c) 2004, 2007 Boeing.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Boeing - initial API and implementation
*******************************************************************************/
package org.eclipse.osee.framework.core.datastore.schema.operations;
import java.io.File;
import java.text.ParseException;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Set;
import java.util.TreeSet;
import java.util.logging.Level;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.parsers.ParserConfigurationException;
import org.eclipse.osee.framework.core.datastore.internal.Activator;
import org.eclipse.osee.framework.core.datastore.schema.data.ColumnDbData;
import org.eclipse.osee.framework.core.datastore.schema.data.ColumnMetadata;
import org.eclipse.osee.framework.core.datastore.schema.data.TableElement;
import org.eclipse.osee.framework.core.datastore.schema.data.TableElement.ColumnFields;
import org.eclipse.osee.framework.core.datastore.schema.data.TableElement.TableDescriptionFields;
import org.eclipse.osee.framework.core.datastore.schema.data.TableElement.TableTags;
import org.eclipse.osee.framework.core.datastore.schema.sql.SqlManager;
import org.eclipse.osee.framework.core.exception.OseeDataStoreException;
import org.eclipse.osee.framework.logging.OseeLog;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
import org.w3c.dom.NamedNodeMap;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;
/**
* @author Roberto E. Escobar
*/
public class DatabaseDataImporter {
private final File directory;
private final SqlManager sqlManager;
private List<String> tableOrder;
private String schemaToImportTo;
private final Set<String> tableFilter;
private class TableData extends TableElement {
private final List<List<ColumnDbData>> rowData;
public TableData() {
rowData = new ArrayList<List<ColumnDbData>>();
}
public void addRow(List<ColumnDbData> row) {
rowData.add(row);
}
public List<List<ColumnDbData>> getRows() {
return rowData;
}
}
public DatabaseDataImporter(File directory, SqlManager sqlManager) {
this.directory = directory;
this.sqlManager = sqlManager;
this.tableFilter = new TreeSet<String>();
}
public void setImportOrder(List<String> tableOrder) {
this.tableOrder = tableOrder;
}
public void setSchemaToImportTo(String schema) {
this.schemaToImportTo = schema;
}
public void addToTableFilter(String fullyQualifiedTableName) {
this.tableFilter.add(fullyQualifiedTableName);
}
public void clearTableFilter() {
this.tableFilter.clear();
}
public List<File> orderFilesByImportOrder(Map<String, File> toOrder) {
List<File> orderedSet = new ArrayList<File>();
if (tableOrder != null && tableOrder.size() != 0) {
for (String tableName : tableOrder) {
String fileName = tableName + FileUtility.DB_DATA_EXTENSION;
File file = toOrder.get(fileName);
if (file != null) {
orderedSet.add(file);
}
}
} else {
Set<String> keys = toOrder.keySet();
for (String key : keys) {
orderedSet.add(toOrder.get(key));
}
}
return orderedSet;
}
public Map<String, File> filterDataToImport(Map<String, File> toProcess) {
Map<String, File> filteredList = new HashMap<String, File>();
if (tableFilter != null && tableFilter.size() != 0) {
for (String tableName : tableFilter) {
String fileName = tableName + FileUtility.DB_DATA_EXTENSION;
File file = toProcess.get(fileName);
if (file != null) {
filteredList.put(fileName, file);
}
}
} else {
return toProcess;
}
return filteredList;
}
public void importDataIntoDatabase() {
if (FileUtility.isValidDirectory(directory)) {
Map<String, File> filesToProcess = getFilesToProcess();
Map<String, File> filteredFiles = filterDataToImport(filesToProcess);
List<File> files = orderFilesByImportOrder(filteredFiles);
DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
DocumentBuilder builder;
Document document;
for (File file : files) {
try {
builder = factory.newDocumentBuilder();
document = builder.parse(file);
processData(parseXMLDbDataFile(document));
} catch (ParserConfigurationException ex) {
OseeLog.log(Activator.class, Level.SEVERE, "Unable to Parse File. ", ex);
} catch (Exception ex) {
OseeLog.log(Activator.class, Level.SEVERE, "Exception: \n", ex);
}
}
}
}
private Map<String, File> getFilesToProcess() {
Map<String, File> toReturn = new HashMap<String, File>();
List<File> files = FileUtility.getDBDataFileList(directory);
for (File fileName : files) {
toReturn.put(fileName.getName(), new File(directory + File.separator + fileName.getName()));
}
return toReturn;
}
private void processData(List<TableData> tables) throws OseeDataStoreException, ParseException {
if (tables.size() != 0) {
for (TableData tableData : tables) {
OseeLog.log(Activator.class, Level.INFO, "Populating: [ " + tableData.getFullyQualifiedTableName() + "]\n");
List<List<ColumnDbData>> rows = tableData.getRows();
if (!rows.isEmpty()) {
for (List<ColumnDbData> rowData : rows) {
sqlManager.insertData(rowData, tableData);
}
}
}
}
}
private void parseColumnMetadata(Element tableElement, TableData tableData) {
NodeList columnElements = tableElement.getElementsByTagName(TableTags.ColumnInfo.name());
if (columnElements != null) {
for (int index = 0; index < columnElements.getLength(); index++) {
Element columnElement = (Element) columnElements.item(index);
if (columnElement != null) {
NamedNodeMap attributeMap = columnElement.getAttributes();
if (attributeMap != null && attributeMap.getLength() != 0) {
ColumnMetadata columnMetaData = new ColumnMetadata("");
for (int attributeIndex = 0; attributeIndex < attributeMap.getLength(); attributeIndex++) {
Node node = attributeMap.item(attributeIndex);
String nodeName = node.getNodeName();
String nodeValue = node.getTextContent();
if (nodeName != null && !nodeName.equals("")) {
columnMetaData.addColumnField(ColumnFields.valueOf(nodeName),
(nodeValue != null ? nodeValue : ""));
}
}
tableData.addColumn(columnMetaData);
}
}
}
}
}
private void parseRowInformation(Element tableElement, TableData tableData) {
NodeList rowElements = tableElement.getElementsByTagName(TableTags.Row.name());
if (rowElements != null) {
for (int rowIndex = 0; rowIndex < rowElements.getLength(); rowIndex++) {
Element row = (Element) rowElements.item(rowIndex);
if (row != null) {
NamedNodeMap attributeMap = row.getAttributes();
if (attributeMap != null && attributeMap.getLength() != 0) {
List<ColumnDbData> rowData = new ArrayList<ColumnDbData>();
tableData.addRow(rowData);
for (int attributeIndex = 0; attributeIndex < attributeMap.getLength(); attributeIndex++) {
Node node = attributeMap.item(attributeIndex);
String nodeName = node.getNodeName();
String nodeValue = node.getTextContent();
if (nodeName != null && !nodeName.equals("")) {
rowData.add(new ColumnDbData(nodeName, (nodeValue != null ? nodeValue : "")));
}
}
}
}
}
}
}
private List<TableData> parseXMLDbDataFile(Document document) {
NodeList tableElements = document.getElementsByTagName(TableTags.Table.name());
List<TableData> tables = new ArrayList<TableData>();
for (int index = 0; index < tableElements.getLength(); index++) {
Element tableXmlElement = (Element) tableElements.item(index);
if (tableXmlElement != null) {
NamedNodeMap map = tableXmlElement.getAttributes();
if (map != null && map.getLength() != 0) {
Node tableName = map.getNamedItem(TableDescriptionFields.name.name());
Node tableAddress = map.getNamedItem(TableDescriptionFields.schema.name());
String tableNameString = "";
String tableAddressString = "";
if (tableName != null) {
tableNameString = tableName.getTextContent();
}
if (tableAddress != null) {
tableAddressString = tableAddress.getTextContent();
}
if (tableNameString != null && !tableNameString.equals("") && tableAddressString != null && !tableAddressString.equals("")) {
TableData tableData = new TableData();
tableData.addTableDescription(TableDescriptionFields.name, tableNameString);
if (this.schemaToImportTo != null && !this.schemaToImportTo.equals("")) {
tableData.addTableDescription(TableDescriptionFields.schema, schemaToImportTo);
} else {
tableData.addTableDescription(TableDescriptionFields.schema, tableAddressString);
}
parseRowInformation(tableXmlElement, tableData);
parseColumnMetadata(tableXmlElement, tableData);
tables.add(tableData);
}
}
}
}
return tables;
}
}
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