com.ozacc.mail.impl.ByteArrayDataSource Maven / Gradle / Ivy
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package com.ozacc.mail.impl;
/*
* @(#)ByteArrayDataSource.java 1.4 01/05/23
*
* Copyright 1998-2000 Sun Microsystems, Inc. All Rights Reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* - Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* - Redistribution in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* Neither the name of Sun Microsystems, Inc. or the names of contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* This software is provided "AS IS," without a warranty of any kind. ALL
* EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND WARRANTIES,
* INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A
* PARTICULAR PURPOSE OR NON-INFRINGEMENT, ARE HEREBY EXCLUDED. SUN AND
* ITS LICENSORS SHALL NOT BE LIABLE FOR ANY DAMAGES OR LIABILITIES
* SUFFERED BY LICENSEE AS A RESULT OF OR RELATING TO USE, MODIFICATION
* OR DISTRIBUTION OF THE SOFTWARE OR ITS DERIVATIVES. IN NO EVENT WILL
* SUN OR ITS LICENSORS BE LIABLE FOR ANY LOST REVENUE, PROFIT OR DATA, OR
* FOR DIRECT, INDIRECT, SPECIAL, CONSEQUENTIAL, INCIDENTAL OR PUNITIVE
* DAMAGES, HOWEVER CAUSED AND REGARDLESS OF THE THEORY OF LIABILITY,
* ARISING OUT OF THE USE OF OR INABILITY TO USE SOFTWARE, EVEN IF SUN HAS
* BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
*
* You acknowledge that Software is not designed, licensed or intended
* for use in the design, construction, operation or maintenance of any
* nuclear facility.
*/
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.io.UnsupportedEncodingException;
import javax.activation.DataSource;
/**
* InputStream、byte array、StringからDataSourceインスタンスを生成するクラス。
* JavaMailパッケージ付属品。
*
* 注: このクラスはpublicですが、ozacc-mail library外からは使用しないでください。
*
* @since 1.1
*
* @author John Mani
* @author Bill Shannon
* @author Max Spivak
*/
public class ByteArrayDataSource implements DataSource {
private byte[] data; // data
private String type; // content-type
/* Create a DataSource from an input stream */
public ByteArrayDataSource(InputStream is, String type) {
this.type = type;
try {
ByteArrayOutputStream os = new ByteArrayOutputStream();
int ch;
while ((ch = is.read()) != -1)
// XXX - must be made more efficient by
// doing buffered reads, rather than one byte reads
os.write(ch);
data = os.toByteArray();
} catch (IOException ioex) {}
}
/* Create a DataSource from a byte array */
public ByteArrayDataSource(byte[] data, String type) {
this.data = data;
this.type = type;
}
/* Create a DataSource from a String */
public ByteArrayDataSource(String data, String type) {
try {
// Assumption that the string contains only ASCII
// characters! Otherwise just pass a charset into this
// constructor and use it in getBytes()
this.data = data.getBytes("iso-8859-1");
} catch (UnsupportedEncodingException uex) {}
this.type = type;
}
/**
* Return an InputStream for the data.
* Note - a new stream must be returned each time.
*/
public InputStream getInputStream() throws IOException {
if (data == null)
throw new IOException("no data");
return new ByteArrayInputStream(data);
}
public OutputStream getOutputStream() throws IOException {
throw new IOException("cannot do this");
}
public String getContentType() {
return type;
}
public String getName() {
return "dummy";
}
}