org.springframework.web.multipart.support.ByteArrayMultipartFileEditor Maven / Gradle / Ivy
/*
* 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 org.springframework.web.multipart.support;
import java.io.IOException;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.springframework.beans.propertyeditors.ByteArrayPropertyEditor;
import org.springframework.web.multipart.MultipartFile;
/**
* Custom PropertyEditor for converting MultipartFiles to byte arrays.
*
* @author Juergen Hoeller
* @since 13.10.2003
*/
public class ByteArrayMultipartFileEditor extends ByteArrayPropertyEditor {
/** Static to avoid creating a new logger every time */
private static final Log logger = LogFactory.getLog(ByteArrayMultipartFileEditor.class);
public void setValue(Object value) {
if (value instanceof MultipartFile) {
MultipartFile multipartFile = (MultipartFile) value;
try {
super.setValue(multipartFile.getBytes());
}
catch (IOException ex) {
logger.warn("Cannot read contents of multipart file", ex);
throw new IllegalArgumentException("Cannot read contents of multipart file: " + ex.getMessage());
}
}
else if (value instanceof byte[]) {
super.setValue(value);
}
else {
super.setValue(value != null ? value.toString().getBytes() : null);
}
}
public String getAsText() {
byte[] value = (byte[]) getValue();
return (value != null ? new String(value) : "");
}
}