/*
* Copyright 2016 JBoss by Red Hat.
*
* 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.jboss.as.repository;
import java.io.IOException;
import java.io.InputStream;
import java.nio.file.Files;
import java.nio.file.Path;
import org.jboss.as.repository.logging.DeploymentRepositoryLogger;
/**
* An inputstream over a temporary file that will be deleted on closing the stream.
* @author Emmanuel Hugonnet (c) 2016 Red Hat, inc.
*/
public class TemporaryFileInputStream extends TypedInputStream {
private static final String DEFAULT_CONTENT_TYPE = "application/octet-stream";
private final InputStream delegate;
private final Path file;
TemporaryFileInputStream(Path file) throws IOException {
this.file = file;
this.delegate = Files.newInputStream(file);
}
@Override
public int read() throws IOException {
return delegate.read();
}
@Override
public int read(byte[] b) throws IOException {
return delegate.read(b);
}
@Override
public int read(byte[] b, int off, int len) throws IOException {
return delegate.read(b, off, len);
}
@Override
public long skip(long n) throws IOException {
return delegate.skip(n);
}
@Override
public int available() throws IOException {
return delegate.available();
}
@Override
public void close() throws IOException {
delegate.close();
Files.deleteIfExists(file);
}
@Override
public synchronized void mark(int readlimit) {
delegate.mark(readlimit);
}
@Override
public synchronized void reset() throws IOException {
delegate.reset();
}
@Override
public boolean markSupported() {
return delegate.markSupported();
}
public Path getFile() {
return file;
}
@Override
public String getContentType() {
String contentType;
try {
contentType = Files.probeContentType(file);
if(contentType == null) {
contentType = DEFAULT_CONTENT_TYPE;
}
} catch (IOException ex) {
DeploymentRepositoryLogger.ROOT_LOGGER.debugf(ex, "Error obtaining content-type for %s", file.toString());
contentType = DEFAULT_CONTENT_TYPE;
}
return contentType;
}
}