nl.info.webdav.LocalFileSystemStore Maven / Gradle / Ivy
/*
*
* 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 nl.info.webdav;
import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.security.Principal;
import java.util.ArrayList;
import java.util.Date;
import java.util.List;
import nl.info.webdav.exceptions.WebdavException;
/**
* Reference Implementation of WebdavStore
*
* @author joa
* @author re
*/
public class LocalFileSystemStore implements IWebdavStore {
private final static org.slf4j.Logger LOG = org.slf4j.LoggerFactory
.getLogger(LocalFileSystemStore.class);
private final static int BUF_SIZE = 65536;
private final File _root;
public LocalFileSystemStore(File root) {
_root = root;
}
public void destroy() {
;
}
public ITransaction begin(Principal principal) throws WebdavException {
LOG.trace("LocalFileSystemStore.begin()");
if (!_root.exists()) {
if (!_root.mkdirs()) {
throw new WebdavException("root path: " + _root.getAbsolutePath() + " does not exist and could not be created");
}
}
return null;
}
public void checkAuthentication(ITransaction transaction)
throws SecurityException {
LOG.trace("LocalFileSystemStore.checkAuthentication()");
// do nothing
}
public void commit(ITransaction transaction) throws WebdavException {
// do nothing
LOG.trace("LocalFileSystemStore.commit()");
}
public void rollback(ITransaction transaction) throws WebdavException {
// do nothing
LOG.trace("LocalFileSystemStore.rollback()");
}
public void createFolder(ITransaction transaction, String uri)
throws WebdavException {
LOG.trace("LocalFileSystemStore.createFolder(" + uri + ")");
File file = new File(_root, uri);
if (!file.mkdir())
throw new WebdavException("cannot create folder: " + uri);
}
public void createResource(ITransaction transaction, String uri)
throws WebdavException {
LOG.trace("LocalFileSystemStore.createResource(" + uri + ")");
File file = new File(_root, uri);
try {
if (!file.createNewFile())
throw new WebdavException("cannot create file: " + uri);
} catch (IOException e) {
LOG
.error("LocalFileSystemStore.createResource(" + uri + ") failed");
throw new WebdavException(e);
}
}
public long setResourceContent(
ITransaction transaction,
String uri,
InputStream is,
String contentType,
String characterEncoding
)
throws WebdavException {
LOG.trace("LocalFileSystemStore.setResourceContent(" + uri + ")");
File file = new File(_root, uri);
try {
OutputStream os = new BufferedOutputStream(new FileOutputStream(
file), BUF_SIZE);
try {
int read;
byte[] copyBuffer = new byte[BUF_SIZE];
while ((read = is.read(copyBuffer, 0, copyBuffer.length)) != -1) {
os.write(copyBuffer, 0, read);
}
} finally {
try {
is.close();
} finally {
os.close();
}
}
} catch (IOException e) {
LOG.error("LocalFileSystemStore.setResourceContent(" + uri + ") failed");
throw new WebdavException(e);
}
long length = -1;
try {
length = file.length();
} catch (SecurityException e) {
LOG.error("LocalFileSystemStore.setResourceContent(" + uri + ") failed" + "\nCan't get file.length");
}
return length;
}
public String[] getChildrenNames(ITransaction transaction, String uri)
throws WebdavException {
LOG.trace("LocalFileSystemStore.getChildrenNames(" + uri + ")");
File file = new File(_root, uri);
String[] childrenNames = null;
if (file.isDirectory()) {
File[] children = file.listFiles();
List childList = new ArrayList();
String name = null;
for (int i = 0; i < children.length; i++) {
name = children[i].getName();
childList.add(name);
LOG.trace("Child " + i + ": " + name);
}
childrenNames = new String[childList.size()];
childrenNames = (String[]) childList.toArray(childrenNames);
}
return childrenNames;
}
public void removeObject(ITransaction transaction, String uri)
throws WebdavException {
File file = new File(_root, uri);
boolean success = file.delete();
LOG.trace("LocalFileSystemStore.removeObject(" + uri + ")=" + success);
if (!success) {
throw new WebdavException("cannot delete object: " + uri);
}
}
public InputStream getResourceContent(ITransaction transaction, String uri)
throws WebdavException {
LOG.trace("LocalFileSystemStore.getResourceContent(" + uri + ")");
File file = new File(_root, uri);
InputStream in;
try {
in = new BufferedInputStream(new FileInputStream(file));
} catch (IOException e) {
LOG.error("LocalFileSystemStore.getResourceContent(" + uri + ") failed");
throw new WebdavException(e);
}
return in;
}
public long getResourceLength(ITransaction transaction, String uri)
throws WebdavException {
LOG.trace("LocalFileSystemStore.getResourceLength(" + uri + ")");
File file = new File(_root, uri);
return file.length();
}
public StoredObject getStoredObject(ITransaction transaction, String uri) {
StoredObject so = null;
File file = new File(_root, uri);
if (file.exists()) {
so = new StoredObject();
so.setFolder(file.isDirectory());
so.setLastModified(new Date(file.lastModified()));
so.setCreationDate(new Date(file.lastModified()));
so.setResourceLength(getResourceLength(transaction, uri));
}
return so;
}
}