org.springframework.batch.admin.web.BatchFileController.java Source code

Introduction

Here is the source code for org.springframework.batch.admin.web.BatchFileController.java

Source

/*
 * Copyright 2015 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.batch.admin.web;

import java.io.IOException;
import java.util.Date;
import java.util.List;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;

import org.springframework.batch.admin.domain.FileInfoResource;
import org.springframework.batch.admin.service.FileInfo;
import org.springframework.batch.admin.service.FileService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.domain.PageImpl;
import org.springframework.data.domain.Pageable;
import org.springframework.data.web.PagedResourcesAssembler;
import org.springframework.hateoas.ExposesResourceFor;
import org.springframework.hateoas.PagedResources;
import org.springframework.http.HttpStatus;
import org.springframework.stereotype.Controller;
import org.springframework.ui.ModelMap;
import org.springframework.validation.Errors;
import org.springframework.web.bind.annotation.ModelAttribute;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.ResponseStatus;
import org.springframework.web.multipart.MultipartFile;
import org.springframework.web.util.HtmlUtils;

/**
 * @author Michael Minella
 */
@Controller
@RequestMapping("/batch/files")
@ExposesResourceFor(FileInfoResource.class)
public class BatchFileController extends AbstractBatchJobsController {

    private static Log logger = LogFactory.getLog(BatchFileController.class);

    @Autowired
    private FileService fileService;

    @RequestMapping(value = "", method = RequestMethod.GET)
    @ResponseStatus(HttpStatus.OK)
    public PagedResources<FileInfoResource> list(Pageable pageable, PagedResourcesAssembler<FileInfo> assembler)
            throws IOException {

        List<FileInfo> files = fileService.getFiles(pageable.getOffset(), pageable.getPageSize());

        return assembler.toResource(new PageImpl<FileInfo>(files, pageable, fileService.countFiles()),
                fileInfoResourceAssembler);
    }

    @RequestMapping(value = "", method = RequestMethod.DELETE)
    @ResponseStatus(HttpStatus.OK)
    public FileInfoResource delete(@RequestParam(defaultValue = "**") String pattern) throws Exception {
        FileInfo fileInfo = new FileInfo(pattern, "", true, fileService.delete(pattern));

        return fileInfoResourceAssembler.toResource(fileInfo);
    }

    @RequestMapping(value = "", method = RequestMethod.POST)
    public String uploadRequest(@RequestParam String path, @RequestParam MultipartFile file, ModelMap model,
            @RequestParam(defaultValue = "0") int startFile, @RequestParam(defaultValue = "20") int pageSize,
            @ModelAttribute("date") Date date, Errors errors) throws Exception {
        return upload(path, file, model, startFile, pageSize, date, errors);
    }

    @RequestMapping(value = "/{path}", method = RequestMethod.POST)
    public String upload(@PathVariable String path, @RequestParam MultipartFile file, ModelMap model,
            @RequestParam(defaultValue = "0") int startFile, @RequestParam(defaultValue = "20") int pageSize,
            @ModelAttribute("date") Date date, Errors errors) throws Exception {

        String originalFilename = file.getOriginalFilename();
        if (file.isEmpty()) {
            errors.reject("file.upload.empty", new Object[] { originalFilename },
                    "File upload was empty for filename=[" + HtmlUtils.htmlEscape(originalFilename) + "]");
            return null;
        }

        try {
            FileInfo dest = fileService.createFile(path + "/" + originalFilename);
            file.transferTo(fileService.getResource(dest.getPath()).getFile());
            fileService.publish(dest);
            model.put("uploaded", dest.getPath());
        } catch (IOException e) {
            errors.reject("file.upload.failed", new Object[] { originalFilename },
                    "File upload failed for " + HtmlUtils.htmlEscape(originalFilename));
        } catch (Exception e) {
            String message = "File upload failed downstream processing for "
                    + HtmlUtils.htmlEscape(originalFilename);
            if (logger.isDebugEnabled()) {
                logger.debug(message, e);
            } else {
                logger.info(message);
            }
            errors.reject("file.upload.failed.downstream", new Object[] { originalFilename }, message);
        }

        return null;
    }
}