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/*******************************************************************************
* Copyright (c) 2005, 2007 IBM Corporation and others.
* 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:
* IBM Corporation - initial API and implementation
*******************************************************************************/
package org.eclipse.jst.jee.archive;
import java.io.IOException;
import java.util.List;
import org.eclipse.core.runtime.IPath;
import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.core.runtime.Path;
import org.eclipse.core.runtime.SubProgressMonitor;
/**
* Abstract implementation of {@link IArchiveSaveAdapter} intended for
* subclassing by clients. See {@link IArchiveSaveAdapter} for details.
*/
public abstract class AbstractArchiveSaveAdapter extends AbstractArchiveAdapter implements IArchiveSaveAdapter {
public void close() throws IOException {
}
public void finish() throws IOException {
}
protected IArchiveResource manifest = null;
protected IArchiveResource metaInf = null;
public void save(IProgressMonitor monitor) throws ArchiveSaveFailureException {
final int GATHER_RESOURCES_TICKS = 1000;
final int SAVE_RESOURCES_TICKS = 1000;
final int FINISH_TICKS = 10;
final int TOTAL_TICKS = GATHER_RESOURCES_TICKS + SAVE_RESOURCES_TICKS + FINISH_TICKS;
Exception caughtException = null;
try {
monitor.beginTask("Saving resources", TOTAL_TICKS);
List<IArchiveResource> files = getArchiveResourcesForSave();
IPath manifestPath = new Path("META-INF/MANIFEST.MF");
if(getArchive().containsArchiveResource(manifestPath)){
manifest = getArchive().getArchiveResource(manifestPath);
}
IPath metaInfPath = manifestPath.removeFirstSegments(1);
if(getArchive().containsArchiveResource(metaInfPath)){
metaInf = getArchive().getArchiveResource(metaInfPath);
}
monitor.worked(GATHER_RESOURCES_TICKS);
IProgressMonitor saveSubMonitor = new SubProgressMonitor(monitor, SAVE_RESOURCES_TICKS);
int SUB_SAVE_TICKS = 10;
int SUB_TOTAL_TICKS = SUB_SAVE_TICKS * (files.size() + 2);
try {
saveSubMonitor.beginTask("Saving resources", SUB_TOTAL_TICKS);
if(manifest != null){
save(manifest);
}
saveSubMonitor.worked(SUB_SAVE_TICKS);
if(metaInf != null){
save(metaInf);
}
saveSubMonitor.worked(SUB_SAVE_TICKS);
for (IArchiveResource file : files) {
if (shouldSave(file)) {
save(file);
}
saveSubMonitor.worked(SUB_SAVE_TICKS);
}
} finally {
saveSubMonitor.done();
}
} catch(Exception e){
caughtException = e;
} finally {
try {
finish();
} catch (IOException e) {
throw new ArchiveSaveFailureException(e);
} finally {
monitor.done();
if(caughtException != null){
throw new ArchiveSaveFailureException(caughtException);
}
}
}
}
protected List<IArchiveResource> getArchiveResourcesForSave() {
List<IArchiveResource> files = getArchive().getArchiveResources();
return files;
}
/**
* Subclasses should implement to perform the actual save on the specified
* {@link IArchiveResource}.
*
* @param file
* @throws ArchiveSaveFailureException
*/
protected abstract void save(IArchiveResource file) throws ArchiveSaveFailureException;
/**
* Subclassess should override to avoid saving the specified
* {@link IArchiveResource}. e.g. to avoid saving source files.
*
* @param file
* @return
*/
protected boolean shouldSave(IArchiveResource file) {
if(file == manifest || file == metaInf){
return false;
}
return true;
}
}
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