Java tutorial
/** * Copyright (C) 2015 Bonitasoft S.A. * Bonitasoft, 32 rue Gustave Eiffel - 38000 Grenoble * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 2.0 of the License, or * (at your option) any later version. * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * You should have received a copy of the GNU General Public License * along with this program. If not, see <http://www.gnu.org/licenses/>. */ package org.bonitasoft.web.designer.controller; import static java.lang.Boolean.TRUE; import static org.bonitasoft.web.designer.controller.asset.AssetService.OrderType.DECREMENT; import static org.bonitasoft.web.designer.controller.asset.AssetService.OrderType.INCREMENT; import java.io.IOException; import java.nio.file.Path; import java.util.Set; import javax.servlet.ServletException; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import com.fasterxml.jackson.annotation.JsonView; import com.google.common.base.Preconditions; import org.bonitasoft.web.designer.controller.asset.AssetService; import org.bonitasoft.web.designer.controller.utils.HttpFile; import org.bonitasoft.web.designer.model.Assetable; import org.bonitasoft.web.designer.model.Identifiable; import org.bonitasoft.web.designer.model.asset.Asset; import org.bonitasoft.web.designer.model.page.Previewable; import org.bonitasoft.web.designer.repository.Repository; import org.bonitasoft.web.designer.repository.exception.NotFoundException; import org.bonitasoft.web.designer.repository.exception.RepositoryException; import org.bonitasoft.web.designer.visitor.AssetVisitor; import org.slf4j.Logger; import org.slf4j.LoggerFactory; import org.springframework.http.HttpStatus; import org.springframework.http.MediaType; import org.springframework.http.ResponseEntity; import org.springframework.web.bind.annotation.PathVariable; import org.springframework.web.bind.annotation.RequestBody; 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.multipart.MultipartFile; public abstract class AssetResource<T extends Assetable> { protected static final Logger logger = LoggerFactory.getLogger(AssetResource.class); protected AssetService<T> assetService; protected AssetVisitor assetVisitor; protected Repository<T> repository; public AssetResource(AssetService<T> assetService, Repository<T> repository, AssetVisitor assetVisitor) { this.assetService = assetService; this.assetVisitor = assetVisitor; this.repository = repository; } protected abstract void checkArtifactId(String artifactId); // produces = MediaType.TEXT_PLAIN_VALUE to avoid some internet explorer issues @RequestMapping(value = "/{artifactId}/assets/{type}", method = RequestMethod.POST, produces = MediaType.TEXT_PLAIN_VALUE) public ResponseEntity<Asset> saveOrUpdate(@RequestParam("file") MultipartFile file, @PathVariable("artifactId") String id, @PathVariable("type") String type) { checkArtifactId(id); Asset asset = assetService.upload(file, repository.get(id), type); return new ResponseEntity<>(asset, HttpStatus.CREATED); } @RequestMapping("/{artifactId}/assets/{type}/{filename:.*}") public void downloadAsset(HttpServletRequest request, HttpServletResponse response, @PathVariable("artifactId") String id, @PathVariable("type") String type, @PathVariable("filename") String filename, @RequestParam(value = "format", required = false) String format) throws IOException { Path filePath = assetService.findAssetPath(id, filename, type); if ("text".equals(format)) { HttpFile.writeFileInResponseForVisualization(request, response, filePath); } else { HttpFile.writeFileInResponseForDownload(response, filePath); } } @RequestMapping(value = "/{artifactId}/assets", method = RequestMethod.POST) public Asset saveAsset(@RequestBody Asset asset, @PathVariable("artifactId") String id) { checkArtifactId(id); return assetService.save(repository.get(id), asset); } @RequestMapping(value = "/{artifactId}/assets/{assetId}", method = RequestMethod.DELETE) public void deleteAsset(@PathVariable("artifactId") String id, @PathVariable("assetId") String assetId) throws RepositoryException { checkArtifactId(id); assetService.delete(repository.get(id), assetId); } @RequestMapping(value = "/{artifactId}/assets") @JsonView(Asset.JsonViewAsset.class) public <U extends Previewable & Identifiable> Set<Asset> assets(@PathVariable("artifactId") String id) { Preconditions.checkNotNull(assetVisitor, "Not available for widgets"); return assetVisitor.visit((U) repository.get(id)); } @RequestMapping(value = "/{artifactId}/assets/{assetId}", method = RequestMethod.PUT) public void updateAsset(@PathVariable("artifactId") String id, @PathVariable("assetId") String assetId, @RequestParam(value = "increment", required = false) Boolean increment, @RequestParam(value = "decrement", required = false) Boolean decrement, @RequestParam(value = "active", required = false) Boolean active) { checkArtifactId(id); if (increment != null || decrement != null) { assetService.changeAssetOrderInComponent(repository.get(id), assetId, TRUE.equals(increment) ? INCREMENT : DECREMENT); } if (active != null) { assetService.changeAssetStateInPreviewable(repository.get(id), assetId, active); } } }