/*
* Copyright 2015 JBoss, by Red Hat, Inc
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.uberfire.ext.editor.commons.backend.service;
import java.util.Collection;
import javax.enterprise.context.ApplicationScoped;
import javax.enterprise.event.Event;
import javax.enterprise.inject.Instance;
import javax.inject.Inject;
import javax.inject.Named;
import org.jboss.errai.bus.server.annotations.Service;
import org.jboss.errai.security.shared.api.identity.User;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.uberfire.backend.server.util.Paths;
import org.uberfire.backend.vfs.Path;
import org.uberfire.ext.editor.commons.backend.service.helper.CopyHelper;
import org.uberfire.ext.editor.commons.service.CopyService;
import org.uberfire.ext.editor.commons.service.PathNamingService;
import org.uberfire.ext.editor.commons.service.restriction.PathOperationRestriction;
import org.uberfire.ext.editor.commons.service.restrictor.CopyRestrictor;
import org.uberfire.io.IOService;
import org.uberfire.java.nio.base.options.CommentedOption;
import org.uberfire.java.nio.file.Files;
import org.uberfire.rpc.SessionInfo;
import org.uberfire.rpc.impl.SessionInfoImpl;
import org.uberfire.workbench.events.ResourceCopiedEvent;
@Service
@ApplicationScoped
public class CopyServiceImpl implements CopyService {
private static final Logger LOGGER = LoggerFactory.getLogger(CopyServiceImpl.class);
private IOService ioService;
private User identity;
private SessionInfo sessionInfo;
private Instance<CopyHelper> helpers;
private Event<ResourceCopiedEvent> resourceCopiedEvent;
private Instance<CopyRestrictor> copyRestrictorBeans;
private PathNamingService pathNamingService;
public CopyServiceImpl() {
}
@Inject
public CopyServiceImpl(@Named("ioStrategy") IOService ioService,
User identity,
SessionInfo sessionInfo,
Instance<CopyHelper> helpers,
Event<ResourceCopiedEvent> resourceCopiedEvent,
Instance<CopyRestrictor> copyRestrictorBeans,
PathNamingService pathNamingService) {
this.ioService = ioService;
this.identity = identity;
this.sessionInfo = sessionInfo;
this.helpers = helpers;
this.resourceCopiedEvent = resourceCopiedEvent;
this.copyRestrictorBeans = copyRestrictorBeans;
this.pathNamingService = pathNamingService;
}
@Override
public Path copy(final Path path,
final String newName,
final String comment) {
LOGGER.info("User:" + identity.getIdentifier() + " copying file [" + path.getFileName() + "] to [" + newName + "]");
checkRestrictions(path);
try {
final Path targetPath = pathNamingService.buildTargetPath(path,
newName);
return copyPath(path,
newName,
targetPath,
comment);
} catch (final RuntimeException e) {
throw e;
} catch (Exception e) {
throw new RuntimeException(e);
}
}
@Override
public Path copy(final Path path,
final String newName,
final Path targetDirectory,
final String comment) {
if (targetDirectory == null) {
return copy(path,
newName,
comment);
}
LOGGER.info("User:" + identity.getIdentifier() + " copying file [" + path.getFileName() + "] to [" + newName + "]");
checkRestrictions(path);
try {
final Path targetPath = pathNamingService.buildTargetPath(path,
targetDirectory,
newName);
return copyPath(path,
newName,
targetPath,
comment);
} catch (final RuntimeException e) {
throw e;
} catch (Exception e) {
throw new RuntimeException(e);
}
}
@Override
public void copyIfExists(final Collection<Path> paths,
final String newName,
final String comment) {
try {
//Always use a batch as CopyHelpers may be involved with the rename operation
startBatch(paths);
for (final Path path : paths) {
LOGGER.info("User:" + identity.getIdentifier() + " copying file (if exists) [" + path.getFileName() + "] to [" + newName + "]");
checkRestrictions(path);
copyPathIfExists(path,
newName,
comment);
}
} catch (final RuntimeException e) {
throw e;
} catch (final Exception e) {
throw new RuntimeException(e);
} finally {
endBatch();
}
}
@Override
public boolean hasRestriction(final Path path) {
for (CopyRestrictor copyRestrictor : getCopyRestrictors()) {
final PathOperationRestriction copyRestriction = copyRestrictor.hasRestriction(path);
if (copyRestriction != null) {
return true;
}
}
return false;
}
private void checkRestrictions(final Path path) {
for (CopyRestrictor copyRestrictor : getCopyRestrictors()) {
final PathOperationRestriction copyRestriction = copyRestrictor.hasRestriction(path);
if (copyRestriction != null) {
throw new RuntimeException(copyRestriction.getMessage(path));
}
}
}
Path copyPath(final Path path,
final String newName,
final Path targetPath,
final String comment) {
final org.uberfire.java.nio.file.Path _path = Paths.convert(path);
final org.uberfire.java.nio.file.Path _target = Paths.convert(targetPath);
try {
ioService.startBatch(_target.getFileSystem());
ioService.copy(_path,
_target,
new CommentedOption(sessionInfo != null ? sessionInfo.getId() : "--",
identity.getIdentifier(),
null,
comment));
//Delegate additional changes required for a copy to applicable Helpers
if (helpers != null) {
for (CopyHelper helper : helpers) {
if (helper.supports(targetPath)) {
helper.postProcess(path,
targetPath);
}
}
}
} catch (final Exception e) {
throw new RuntimeException(e);
} finally {
endBatch();
}
resourceCopiedEvent.fire(new ResourceCopiedEvent(path,
targetPath,
comment,
sessionInfo != null ? sessionInfo : new SessionInfoImpl("--",
identity)));
return targetPath;
}
void copyPathIfExists(final Path path,
final String newName,
final String comment) {
final org.uberfire.java.nio.file.Path _path = Paths.convert(path);
if (Files.exists(_path)) {
final org.uberfire.java.nio.file.Path _target = Paths.convert(pathNamingService.buildTargetPath(path,
newName));
ioService.copy(_path,
_target,
new CommentedOption(sessionInfo.getId(),
identity.getIdentifier(),
null,
comment)
);
//Delegate additional changes required for a copy to applicable Helpers
if (_target != null && helpers != null) {
final Path targetPath = Paths.convert(_target);
for (CopyHelper helper : helpers) {
if (helper.supports(targetPath)) {
helper.postProcess(path,
targetPath);
}
}
}
}
}
void startBatch(final Collection<Path> paths) {
ioService.startBatch(Paths.convert(paths.iterator().next()).getFileSystem());
}
void endBatch() {
ioService.endBatch();
}
Iterable<CopyRestrictor> getCopyRestrictors() {
return copyRestrictorBeans;
}
}