| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you 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.apache.geronimo.gshell.xstore; |
| |
| import org.apache.commons.vfs.FileObject; |
| import org.apache.commons.vfs.FileSystemException; |
| import org.apache.geronimo.gshell.io.Closer; |
| import org.apache.geronimo.gshell.marshal.Marshaller; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| import java.io.BufferedInputStream; |
| import java.io.BufferedOutputStream; |
| import java.util.ArrayList; |
| import java.util.Collection; |
| import java.util.List; |
| |
| /** |
| * {@link XStoreRecord} implementation. |
| * |
| * @version $Rev$ $Date$ |
| */ |
| public class XStoreRecordImpl |
| implements XStoreRecord |
| { |
| private final Logger log = LoggerFactory.getLogger(getClass()); |
| |
| private final XStoreImpl xstore; |
| |
| private final FileObject file; |
| |
| XStoreRecordImpl(final XStoreImpl xstore, final FileObject file) { |
| assert xstore != null; |
| this.xstore = xstore; |
| assert file != null; |
| this.file = file; |
| } |
| |
| public String getPath() { |
| return file.getName().getPath(); |
| } |
| |
| public String toString() { |
| return getPath(); |
| } |
| |
| public boolean exists() { |
| try { |
| return file.exists(); |
| } |
| catch (FileSystemException e) { |
| throw new XStoreException(e); |
| } |
| } |
| |
| @SuppressWarnings({"unchecked"}) |
| public void set(final Object value) { |
| assert value != null; |
| |
| log.trace("Setting: {} -> {}", file.getName(), value); |
| |
| BufferedOutputStream output = null; |
| try { |
| Marshaller marshaller = xstore.getMarshaller(value.getClass()); |
| output = new BufferedOutputStream(file.getContent().getOutputStream()); |
| marshaller.marshal(value, output); |
| } |
| catch (FileSystemException e) { |
| throw new XStoreException(e); |
| } |
| finally { |
| Closer.close(output); |
| } |
| } |
| |
| public <T> T get(final Class<T> type) { |
| assert type != null; |
| |
| log.trace("Getting: {}", file); |
| |
| BufferedInputStream input = null; |
| |
| try { |
| Marshaller<T> marshaller = xstore.getMarshaller(type); |
| |
| FileObject parent = file.getParent(); |
| if (parent != null && !parent.exists()) { |
| parent.createFolder(); |
| } |
| |
| input = new BufferedInputStream(file.getContent().getInputStream()); |
| T value = marshaller.unmarshal(input); |
| log.trace("Value: {}", value); |
| return value; |
| } |
| catch (FileSystemException e) { |
| throw new XStoreException(e); |
| } |
| finally { |
| Closer.close(input); |
| } |
| } |
| |
| public void close() { |
| log.trace("Closing: {}", file); |
| |
| try { |
| file.close(); |
| } |
| catch (FileSystemException e) { |
| throw new XStoreException(e); |
| } |
| } |
| |
| public boolean delete() { |
| log.trace("Deleting: {}", file); |
| |
| try { |
| return file.delete(); |
| } |
| catch (FileSystemException e) { |
| throw new XStoreException(e); |
| } |
| } |
| |
| public void refresh() { |
| log.trace("Refreshing: {}", file); |
| |
| try { |
| file.refresh(); |
| } |
| catch (FileSystemException e) { |
| throw new XStoreException(e); |
| } |
| } |
| |
| public XStoreRecord getParent() { |
| FileObject parentFile; |
| |
| try { |
| parentFile = file.getParent(); |
| } |
| catch (FileSystemException e) { |
| throw new XStoreException(e); |
| } |
| |
| if (parentFile != null) { |
| return new XStoreRecordImpl(xstore, parentFile); |
| } |
| return null; |
| } |
| |
| public Collection<XStoreRecord> getChilden() { |
| FileObject[] files; |
| |
| try { |
| files = file.getChildren(); |
| } |
| catch (FileSystemException e) { |
| throw new XStoreException(e); |
| } |
| |
| List<XStoreRecord> children = new ArrayList<XStoreRecord>(files.length); |
| |
| for (FileObject file : files) { |
| children.add(new XStoreRecordImpl(xstore, file)); |
| } |
| |
| return children; |
| } |
| |
| public XStorePointer createPointer() { |
| return xstore.createPointer(getPath()); |
| } |
| } |