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package com.fr.plugin.file.download.oss;
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import com.aliyun.oss.OSSClient;
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import com.aliyun.oss.model.OSSObject;
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import com.fr.general.GeneralUtils;
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import com.fr.general.IOUtils;
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import com.fr.log.FineLoggerFactory;
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import com.fr.plugin.oss.universal.config.OssUniversalConfig;
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import com.fr.script.AbstractFunction;
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import com.fr.stable.ArrayUtils;
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import com.fr.stable.Primitive;
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import javax.imageio.ImageIO;
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import java.io.ByteArrayInputStream;
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import java.io.IOException;
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/**
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* 将OSS中的文件已图片的方式展示到报表中来
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*/
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public class OssFile2Image extends AbstractFunction {
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@Override
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public Object run(Object[] args) {
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int len = ArrayUtils.getLength(args);
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if (len < 2) {
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return Primitive.ERROR_VALUE;
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}
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String key = GeneralUtils.objectToString(args[0]);
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String bucket = GeneralUtils.objectToString(args[1]);
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OSSClient ossClient = new OSSClient(
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OssUniversalConfig.getInstance().getEndPoint(),
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OssUniversalConfig.getInstance().getAccessKeyId(),
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OssUniversalConfig.getInstance().getRealAccessKeySecret());
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OSSObject object = ossClient.getObject(bucket, key);
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byte[] bytes = IOUtils.inputStream2Bytes(object.getObjectContent());
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try {
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return ImageIO.read(new ByteArrayInputStream(bytes));
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} catch (IOException e) {
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FineLoggerFactory.getLogger().error(e.getMessage(), e);
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return Primitive.ERROR_VALUE;
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}
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}
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}
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