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/*******************************************************************************
* Copyright (c) 2010 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.branch.management.exchange.transform;
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileWriter;
import java.io.IOException;
import java.io.Writer;
import javax.xml.stream.XMLOutputFactory;
import javax.xml.stream.XMLStreamException;
import javax.xml.stream.XMLStreamWriter;
import org.eclipse.osee.framework.branch.management.exchange.ExchangeUtil;
import org.eclipse.osee.framework.branch.management.exchange.IOseeExchangeDataProvider;
import org.eclipse.osee.framework.branch.management.exchange.handler.ExportItem;
import org.eclipse.osee.framework.branch.management.exchange.handler.IExportItem;
import org.eclipse.osee.framework.core.exception.OseeCoreException;
import org.eclipse.osee.framework.core.exception.OseeExceptions;
import org.eclipse.osee.framework.core.exception.OseeStateException;
import org.eclipse.osee.framework.jdk.core.text.Rule;
import org.eclipse.osee.framework.jdk.core.util.Lib;
import org.eclipse.osee.framework.jdk.core.util.io.xml.SaxTransformer;
import org.xml.sax.ContentHandler;
public final class ExchangeDataProcessor {
private final IOseeExchangeDataProvider dataProvider;
public IOseeExchangeDataProvider getDataProvider() {
return dataProvider;
}
public ExchangeDataProcessor(IOseeExchangeDataProvider exportDataProvider) {
this.dataProvider = exportDataProvider;
}
public void transform(String fileName, SaxTransformer transformer) throws OseeCoreException {
transform(dataProvider.getFile(fileName), transformer);
}
public void transform(ExportItem exportItem, SaxTransformer transformer) throws OseeCoreException {
transform(dataProvider.getFile(exportItem), transformer);
}
private void transform(File targetFile, SaxTransformer transformer) throws OseeCoreException {
File tempFile = new File(Lib.changeExtension(targetFile.getPath(), "temp"));
Writer fileWriter = null;
try {
fileWriter = startTransform(targetFile, tempFile, transformer);
ExchangeUtil.readExchange(tempFile, transformer);
tempFile.delete();
} catch (Exception ex) {
renameExportItem(tempFile, targetFile);
OseeExceptions.wrapAndThrow(ex);
} finally {
try {
transformer.finish();
} catch (Exception ex) {
OseeExceptions.wrapAndThrow(ex);
} finally {
Lib.close(fileWriter);
}
}
}
public Writer startTransform(File targetFile, File tempFile, SaxTransformer transformer) throws OseeCoreException, XMLStreamException, IOException {
renameExportItem(targetFile, tempFile);
Writer fileWriter = new BufferedWriter(new FileWriter(targetFile));
XMLOutputFactory factory = XMLOutputFactory.newInstance();
XMLStreamWriter xmlWriter = factory.createXMLStreamWriter(fileWriter);
transformer.setWriter(xmlWriter);
return fileWriter;
}
public void deleteExportItem(String fileName) {
dataProvider.getFile(fileName).delete();
}
public void renameExportItem(String originalFileName, String newFileName) throws OseeCoreException {
renameExportItem(dataProvider.getFile(originalFileName), dataProvider.getFile(newFileName));
}
private void renameExportItem(File original, File destination) throws OseeCoreException {
boolean wasSuccessful = original.renameTo(destination);
if (!wasSuccessful) {
throw new OseeStateException(String.format("Error renaming [%s] to [%s]", original, destination));
}
}
public void copyExportItem(String sourceFileName, String destinationFileName) throws OseeCoreException {
File source = dataProvider.getFile(sourceFileName);
File destination = dataProvider.getFile(destinationFileName);
try {
Lib.copyFile(source, destination);
} catch (Exception ex) {
OseeExceptions.wrapAndThrow(ex);
}
}
public void parse(String fileName, ContentHandler handler) throws OseeCoreException {
ExchangeUtil.readExchange(dataProvider.getFile(fileName), handler);
}
public void parse(IExportItem exportItem, ContentHandler handler) throws OseeCoreException {
try {
ExchangeUtil.readExchange(dataProvider.getFile(exportItem), handler);
} catch (Exception ex) {
OseeExceptions.wrapAndThrow(ex);
}
}
public void transform(ExportItem exportItem, Rule rule) throws OseeCoreException {
try {
rule.process(dataProvider.getFile(exportItem));
} catch (IOException ex) {
OseeExceptions.wrapAndThrow(ex);
}
}
public void cleanUp() {
ExchangeUtil.cleanUpTempExchangeFile(dataProvider.getExportedDataRoot(), dataProvider.wasZipExtractionRequired());
}
}
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