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Ant Fin Tech API SDK For Java
Copyright (c) 2015-present Alipay.com, https://www.alipay.com
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/*
* Copyright (c) 2015-present Alipay.com, https://www.alipay.com
*
* 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 cn.com.antcloud.api.acapi;
import java.io.*;
public class FileItem {
private String fileName;
private String mimeType;
private byte[] content;
private File file;
/**
* 基于本地文件的构造器。
*
* @param file 本地文件
*/
public FileItem(File file) {
this.file = file;
}
/**
* 基于文件绝对路径的构造器。
*
* @param filePath 文件绝对路径
*/
public FileItem(String filePath) {
this(new File(filePath));
}
/**
* 基于文件名和字节流的构造器。
*
* @param fileName 文件名
* @param content 文件字节流
*/
public FileItem(String fileName, byte[] content) {
this.fileName = fileName;
this.content = content;
}
/**
* 基于文件名、字节流和媒体类型的构造器。
*
* @param fileName 文件名
* @param content 文件字节流
* @param mimeType 媒体类型
*/
public FileItem(String fileName, byte[] content, String mimeType) {
this(fileName, content);
this.mimeType = mimeType;
}
public String getFileName() {
if (this.fileName == null && this.file != null && this.file.exists()) {
this.fileName = file.getName();
}
return this.fileName;
}
public String getMimeType() throws IOException {
if (this.mimeType == null) {
this.mimeType = AntCloudUtils.getMimeType(getContent());
}
return this.mimeType;
}
public byte[] getContent() throws IOException {
if (this.content == null && this.file != null && this.file.exists()) {
InputStream in = null;
ByteArrayOutputStream out = null;
try {
in = new FileInputStream(this.file);
out = new ByteArrayOutputStream();
int ch;
while ((ch = in.read()) != -1) {
out.write(ch);
}
this.content = out.toByteArray();
} finally {
if (out != null) {
out.close();
}
if (in != null) {
in.close();
}
}
}
return this.content;
}
}
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