/*
* Copyright 2002-2016 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 org.springframework.integration.http.multipart;
import java.io.BufferedInputStream;
import java.io.ByteArrayInputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import org.springframework.util.Assert;
import org.springframework.util.FileCopyUtils;
import org.springframework.web.multipart.MultipartFile;
/**
* A {@link MultipartFile} implementation that represents an uploaded File.
* The actual file content either exists in memory (in a byte array) or in a File.
*
* @author Mark Fisher
* @author Gary Russell
* @since 2.0
*/
public class UploadedMultipartFile implements MultipartFile {
private final File file;
private final byte[] bytes;
private final long size;
private final String contentType;
private final String formParameterName;
private final String originalFilename;
public UploadedMultipartFile(File file, long size, String contentType, String formParameterName,
String originalFilename) {
Assert.notNull(file, "file must not be null");
Assert.hasText(contentType, "contentType is required");
Assert.hasText(formParameterName, "formParameterName is required");
Assert.hasText(originalFilename, "originalFilename is required");
this.file = file;
this.size = size;
this.bytes = null;
this.contentType = contentType;
this.formParameterName = formParameterName;
this.originalFilename = originalFilename;
}
public UploadedMultipartFile(byte[] bytes, String contentType, String formParameterName, //NOSONAR - direct storage
String originalFilename) {
Assert.notNull(bytes, "bytes must not be null");
Assert.hasText(contentType, "contentType is required");
Assert.hasText(formParameterName, "formParameterName is required");
Assert.hasText(originalFilename, "originalFilename is required");
this.bytes = bytes; //NOSONAR - direct storage
this.size = bytes.length;
this.file = null;
this.contentType = contentType;
this.formParameterName = formParameterName;
this.originalFilename = originalFilename;
}
@Override
public String getName() {
return this.formParameterName;
}
@Override
public byte[] getBytes() throws IOException {
if (this.bytes != null) {
return this.bytes; //NOSONAR - direct access
}
return FileCopyUtils.copyToByteArray(this.file);
}
@Override
public String getContentType() {
return this.contentType;
}
@Override
public InputStream getInputStream() throws IOException {
if (this.bytes != null) {
return new ByteArrayInputStream(this.bytes);
}
return new BufferedInputStream(new FileInputStream(this.file));
}
@Override
public String getOriginalFilename() {
return this.originalFilename;
}
@Override
public long getSize() {
return this.size;
}
@Override
public boolean isEmpty() {
return this.size == 0;
}
@Override
public void transferTo(File dest) throws IOException, IllegalStateException {
if (this.bytes != null) {
FileCopyUtils.copy(this.bytes, dest);
}
else {
FileCopyUtils.copy(this.file, dest);
}
}
}