com.github.nosan.embedded.cassandra.commons.FileSystemResource Maven / Gradle / Ivy
/*
* Copyright 2020-2021 the original author or authors.
*
* 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
*
* https://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 com.github.nosan.embedded.cassandra.commons;
import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.net.MalformedURLException;
import java.net.URI;
import java.net.URL;
import java.nio.file.Files;
import java.nio.file.Path;
import java.util.Objects;
import java.util.Optional;
/**
* {@link Resource} implementation for file system resources.
*
* @author Dmytro Nosan
* @since 4.0.0
*/
public class FileSystemResource implements Resource {
private final Path file;
/**
* Constructs a new {@link FileSystemResource} with the specified {@link Path}.
*
* @param file the {@link Path}
*/
public FileSystemResource(Path file) {
Objects.requireNonNull(file, "Path must not be null");
this.file = file;
}
/**
* Constructs a new {@link FileSystemResource} with the specified {@link File}.
*
* @param file the {@link File}
*/
public FileSystemResource(File file) {
Objects.requireNonNull(file, "File must not be null");
this.file = file.toPath();
}
@Override
public InputStream getInputStream() throws IOException {
return Files.newInputStream(this.file);
}
@Override
public OutputStream getOutputStream() throws IOException {
return Files.newOutputStream(this.file);
}
@Override
public URL toURL() throws MalformedURLException {
return this.file.toUri().toURL();
}
@Override
public URI toURI() {
return this.file.toUri();
}
@Override
public Optional getFileName() {
return Optional.ofNullable(this.file.getFileName()).map(Object::toString).filter(StringUtils::hasText);
}
@Override
public boolean exists() {
return Files.exists(this.file);
}
@Override
public boolean isWritable() {
return Files.isWritable(this.file) && !Files.isDirectory(this.file);
}
@Override
public boolean isReadable() {
return Files.isReadable(this.file) && !Files.isDirectory(this.file);
}
@Override
public boolean equals(Object other) {
if (this == other) {
return true;
}
if (other == null || getClass() != other.getClass()) {
return false;
}
FileSystemResource that = (FileSystemResource) other;
return this.file.equals(that.file);
}
/**
* Gets the file.
*
* @return the file
*/
public Path getFile() {
return this.file;
}
@Override
public int hashCode() {
return this.file.hashCode();
}
@Override
public String toString() {
return "FileSystemResource{" + "file=" + this.file + '}';
}
}