/**
* 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 demo.jaxrs.search.server;
import java.io.BufferedOutputStream;
import java.io.ByteArrayInputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import org.apache.cxf.helpers.IOUtils;
public class Storage {
private final File folder = new File("files");
public Storage() throws IOException {
if (!folder.exists() && !folder.mkdirs()) {
throw new IOException("Unable to initialize FS storage:" + folder.getAbsolutePath());
}
if (!folder.isDirectory() || !folder.canWrite() || !folder.canWrite()) {
throw new IOException("Unable to access FS storage:" + folder.getAbsolutePath());
}
}
public void addDocument(final String name, final byte[] content) throws IOException {
try (InputStream in = new ByteArrayInputStream(content)) {
addDocument(name, in);
}
}
public void addDocument(final String name, final InputStream in) throws IOException {
final File f = new File(folder, name);
if (f.exists() && !f.delete()) {
throw new IOException("Unable to delete FS file:" + f.getAbsolutePath());
}
try (OutputStream out = new BufferedOutputStream(new FileOutputStream(f))) {
out.write(IOUtils.readBytesFromStream(in));
f.deleteOnExit();
}
}
public InputStream getDocument(final String name) throws IOException {
final File f = new File(folder, name);
if (!f.exists() || !f.isFile()) {
throw new FileNotFoundException("Unable to access FS file:" + f.getAbsolutePath());
}
return new FileInputStream(f);
}
public void deleteAll() throws IOException {
for (final File f: folder.listFiles()) {
if (!f.delete()) {
throw new IOException("Unable to delete FS file:" + f.getAbsolutePath());
}
}
}
}