sapience.proxy.spring.StreamingMultipartFile.java Source code

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Here is the source code for sapience.proxy.spring.StreamingMultipartFile.java

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/*
* Copyright 2002-2006 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
*
* 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 sapience.proxy.spring;

import org.springframework.web.multipart.MultipartFile;
import org.springframework.web.multipart.MultipartException;
import org.apache.commons.fileupload.FileItemStream;
import org.apache.commons.io.IOUtils;
import org.apache.commons.io.output.ByteArrayOutputStream;

import java.io.ByteArrayInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.File;

/**
* @author Vidar Svansson
* @since: 05.26.2009
*/
public class StreamingMultipartFile implements MultipartFile {

    private FileItemStream item;
    private long size = -1;
    byte[] bytes;

    public StreamingMultipartFile(FileItemStream item) throws IOException {

        this.item = item;

        // copy into bytes
        bytes = IOUtils.toByteArray(item.openStream());

    }

    public String getName() {
        return item.getName();
    }

    public String getOriginalFilename() {
        return item.getFieldName();
    }

    public String getContentType() {
        return item.getContentType();
    }

    public boolean isEmpty() {
        return false;
    }

    public long getSize() {
        if (size > 0) {

            return bytes.length;

        }
        return size;
    }

    public InputStream getInputStream() throws IOException {
        return new ByteArrayInputStream(bytes);

    }

    public void transferTo(File dest) throws IOException, IllegalStateException {
        throw new UnsupportedOperationException("not possible");
    }

    public byte[] getBytes() throws IOException {
        return bytes;
    }
}