com.sun.istack.ByteArrayDataSource Maven / Gradle / Ivy
/*
* Copyright (c) 1997, 2020 Oracle and/or its affiliates. All rights reserved.
*
* This program and the accompanying materials are made available under the
* terms of the Eclipse Distribution License v. 1.0, which is available at
* http://www.eclipse.org/org/documents/edl-v10.php.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
package com.sun.istack;
import jakarta.activation.DataSource;
import java.io.InputStream;
import java.io.ByteArrayInputStream;
import java.io.OutputStream;
/**
* {@link DataSource} backed by a byte buffer.
*
* @author Kohsuke Kawaguchi
*/
public final class ByteArrayDataSource implements DataSource {
private final String contentType;
private final byte[] buf;
private final int len;
/**
* @param buf input buffer - the byte array isn't being copied; used directly
* @param contentType
*/
public ByteArrayDataSource(byte[] buf, String contentType) {
this(buf,buf.length,contentType);
}
/**
* @param buf input buffer - the byte array isn't being copied; used directly
* @param length
* @param contentType
*/
public ByteArrayDataSource(byte[] buf, int length, String contentType) {
this.buf = buf;
this.len = length;
this.contentType = contentType;
}
public String getContentType() {
if(contentType==null)
return "application/octet-stream";
return contentType;
}
public InputStream getInputStream() {
return new ByteArrayInputStream(buf,0,len);
}
public String getName() {
return null;
}
public OutputStream getOutputStream() {
throw new UnsupportedOperationException();
}
}