com.github.yingzhuo.fastdfs.springboot.domain.upload.FastFile Maven / Gradle / Ivy

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package com.github.yingzhuo.fastdfs.springboot.domain.upload;

import com.github.yingzhuo.fastdfs.springboot.domain.fdfs.MetaData;

import java.io.InputStream;
import java.io.Serializable;
import java.util.Collections;
import java.util.Set;

/**
 * 上传普通文件
 *
 * @author tobato
 */
public class FastFile implements Serializable {

    /**
     * 输入流
     */
    protected InputStream inputStream;

    /**
     * 文件大小
     */
    protected long fileSize;

    /**
     * 文件扩展名
     */
    protected String fileExtName;

    /**
     * 文件元数据
     */
    protected Set metaDataSet;

    /**
     * 上传文件分组
     */
    protected String groupName;

    public FastFile(InputStream inputStream, long fileSize,
                    String fileExtName, Set metaDataSet) {
        this.inputStream = inputStream;
        this.fileSize = fileSize;
        this.fileExtName = fileExtName;
        this.metaDataSet = metaDataSet;
    }

    protected FastFile() {
    }

    public InputStream getInputStream() {
        return inputStream;
    }

    public long getFileSize() {
        return fileSize;
    }

    public String getFileExtName() {
        return fileExtName;
    }

    public Set getMetaDataSet() {
        return metaDataSet != null ? Collections.unmodifiableSet(metaDataSet) : Collections.emptySet();
    }

    public String getGroupName() {
        return groupName;
    }

    /**
     * 构造模式
     */
    public static class Builder extends AbstractFastFileBuilder {

        @Override
        public Builder withFile(InputStream inputStream, long fileSize, String fileExtName) {
            super.withFile(inputStream, fileSize, fileExtName);
            return this;
        }

        @Override
        public Builder withMetaData(String name, String value) {
            super.withMetaData(name, value);
            return this;
        }

        @Override
        public Builder withMetaData(Set metaDataSet) {
            super.withMetaData(metaDataSet);
            return this;
        }

        @Override
        public Builder toGroup(String groupName) {
            super.toGroup(groupName);
            return this;
        }

        /**
         * 构造上传文件对象
         */
        public FastFile build() {
            FastFile file = new FastFile();
            file.inputStream = this.inputStream;
            file.fileExtName = this.fileExtName;
            file.fileSize = this.fileSize;
            file.metaDataSet = this.metaDataSet;
            file.groupName = this.groupName;
            return file;
        }
    }

}