source: contrib/MailArchiver/sources/vendor/mime4j/custom/dom/src/main/java/org/apache/james/mime4j/message/BasicBodyFactory.java @ 6785

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 * 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   *
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package org.apache.james.mime4j.message;

import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.UnsupportedEncodingException;

import org.apache.james.mime4j.dom.BinaryBody;
import org.apache.james.mime4j.dom.TextBody;
import org.apache.james.mime4j.util.CharsetUtil;

/**
 * Factory for creating message bodies.
 */
public class BasicBodyFactory implements BodyFactory {

    private static String DEFAULT_CHARSET = CharsetUtil.DEFAULT_CHARSET.name();
    
    public BinaryBody binaryBody(final InputStream is) throws IOException {
        return new BasicBinaryBody(bufferContent(is));
    }

    public TextBody textBody(final InputStream is, final String mimeCharset) throws IOException {
        return new BasicTextBody(bufferContent(is), mimeCharset);
    }
 
    private static byte[] bufferContent(final InputStream is) throws IOException {
        if (is == null) {
            throw new IllegalArgumentException("Input stream may not be null");
        }
        ByteArrayOutputStream buf = new ByteArrayOutputStream();
        byte[] tmp = new byte[2048];
        int l;
        while ((l = is.read(tmp)) != -1) {
            buf.write(tmp, 0, l);
        }
        return buf.toByteArray();
    }
    
    public TextBody textBody(final String text, final String mimeCharset) throws UnsupportedEncodingException {
        if (text == null) {
            throw new IllegalArgumentException("Text may not be null");
        }
        return new BasicTextBody(text.getBytes(mimeCharset), mimeCharset);
    }

    public TextBody textBody(final String text) throws UnsupportedEncodingException {
        return textBody(text, DEFAULT_CHARSET);
    }
    
    public BinaryBody binaryBody(final byte[] buf) {
        return new BasicBinaryBody(buf);
    }

}