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ContentEntityRestController.java
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ContentEntityRestController.java
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package internal.org.springframework.content.rest.controllers;
import java.io.IOException;
import java.io.InputStream;
import java.io.Serializable;
import java.util.ArrayList;
import java.util.List;
import javax.persistence.Version;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.springframework.beans.BeansException;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.content.commons.annotations.ContentId;
import org.springframework.content.commons.annotations.MimeType;
import org.springframework.content.commons.annotations.OriginalFileName;
import org.springframework.content.commons.repository.ContentStore;
import org.springframework.content.commons.repository.Store;
import org.springframework.content.commons.storeservice.ContentStoreInfo;
import org.springframework.content.commons.storeservice.ContentStoreService;
import org.springframework.content.commons.utils.BeanUtils;
import org.springframework.context.ApplicationContext;
import org.springframework.core.io.InputStreamResource;
import org.springframework.core.io.Resource;
import org.springframework.data.repository.support.Repositories;
import org.springframework.http.HttpHeaders;
import org.springframework.http.HttpStatus;
import org.springframework.http.MediaType;
import org.springframework.http.ResponseEntity;
import org.springframework.util.StringUtils;
import org.springframework.web.HttpRequestMethodNotSupportedException;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestHeader;
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.ResponseBody;
import org.springframework.web.multipart.MultipartFile;
import internal.org.springframework.content.rest.annotations.ContentRestController;
import internal.org.springframework.content.rest.mappings.ContentHandlerMapping.StoreType;
import internal.org.springframework.content.rest.mappings.StoreByteRangeHttpRequestHandler;
import internal.org.springframework.content.rest.utils.ContentStoreUtils;
@ContentRestController
public class ContentEntityRestController extends AbstractContentPropertyController {
private static final String BASE_MAPPING = "/{store}/{id}";
private Repositories repositories;
private ContentStoreService storeService;
private StoreByteRangeHttpRequestHandler handler;
@Autowired
public ContentEntityRestController(ApplicationContext context, ContentStoreService storeService, StoreByteRangeHttpRequestHandler handler) {
try {
this.repositories = context.getBean(Repositories.class);
}
catch (BeansException be) {
this.repositories = new Repositories(context);
}
this.storeService = storeService;
this.handler = handler;
}
@StoreType("contentstore")
@RequestMapping(value = BASE_MAPPING, method = RequestMethod.GET, headers = {
"accept!=application/hal+json", "range" })
public void getContent(HttpServletRequest request, HttpServletResponse response,
@PathVariable String store, @PathVariable String id)
throws HttpRequestMethodNotSupportedException {
ContentStoreInfo info = ContentStoreUtils.findStore(storeService, store);
if (info == null) {
throw new IllegalArgumentException(
String.format("Store for path %s not found", store));
}
Object domainObj = findOne(repositories, info.getDomainObjectClass(), id);
Serializable cid = (Serializable) BeanUtils.getFieldWithAnnotation(domainObj,
ContentId.class);
Resource r = ((Store) info.getImpementation()).getResource(cid);
if (r == null) {
throw new ResourceNotFoundException();
}
request.setAttribute("SPRING_CONTENT_RESOURCE", r);
if (BeanUtils.hasFieldWithAnnotation(domainObj, MimeType.class)) {
request.setAttribute("SPRING_CONTENT_CONTENTTYPE", BeanUtils
.getFieldWithAnnotation(domainObj, MimeType.class).toString());
}
try {
handler.handleRequest(request, response);
}
catch (ServletException e) {
e.printStackTrace();
}
catch (IOException e) {
e.printStackTrace();
}
return;
}
@StoreType("contentstore")
@RequestMapping(value = BASE_MAPPING, method = RequestMethod.GET)
public ResponseEntity<InputStreamResource> getContent(@PathVariable String store,
@PathVariable String id,
@RequestHeader(value = "Accept", required = false) String mimeType)
throws HttpRequestMethodNotSupportedException {
ContentStoreInfo info = ContentStoreUtils.findStore(storeService, store);
if (info == null) {
throw new IllegalArgumentException(
String.format("Store for path %s not found", store));
}
Object domainObj = findOne(repositories, info.getDomainObjectClass(), id);
Object contentId = BeanUtils.getFieldWithAnnotation(domainObj, ContentId.class);
if (contentId == null) {
throw new ResourceNotFoundException();
}
List<MediaType> mimeTypes = new ArrayList<>(MediaType.parseMediaTypes(mimeType));
if (mimeTypes.size() == 0) {
mimeTypes.add(MediaType.ALL);
}
final HttpHeaders headers = new HttpHeaders();
ContentStore<Object, Serializable> storeImpl = info.getImpementation();
InputStream content = ContentStoreUtils.getContent(storeImpl, domainObj,
mimeTypes, headers);
if (content != null) {
InputStreamResource inputStreamResource = new InputStreamResource(content);
return new ResponseEntity<InputStreamResource>(inputStreamResource, headers,
HttpStatus.OK);
}
else {
return new ResponseEntity<InputStreamResource>(null, headers,
HttpStatus.NOT_ACCEPTABLE);
}
}
@StoreType("contentstore")
@RequestMapping(value = BASE_MAPPING, method = RequestMethod.PUT, headers = {
"content-type!=multipart/form-data", "accept!=application/hal+json" })
@ResponseBody
public void putContent(HttpServletRequest request, HttpServletResponse response,
@PathVariable String store, @PathVariable String id)
throws IOException, HttpRequestMethodNotSupportedException,
InstantiationException, IllegalAccessException {
ContentStoreInfo info = ContentStoreUtils.findContentStore(storeService, store);
if (info == null) {
throw new IllegalArgumentException(
String.format("Store for path %s not found", store));
}
Object domainObj = findOne(repositories, info.getDomainObjectClass(), id);
boolean isNew = true;
if (BeanUtils.hasFieldWithAnnotation(domainObj, ContentId.class)) {
isNew = (BeanUtils.getFieldWithAnnotation(domainObj,
ContentId.class) == null);
}
if (BeanUtils.hasFieldWithAnnotation(domainObj, MimeType.class)) {
BeanUtils.setFieldWithAnnotation(domainObj, MimeType.class,
request.getHeader("Content-Type"));
}
info.getImpementation().setContent(domainObj, request.getInputStream());
// re-fetch to make sure we have the latest
if (BeanUtils.hasFieldWithAnnotation(domainObj, Version.class)) {
domainObj = findOne(repositories, info.getDomainObjectClass(), id);
}
save(repositories, domainObj);
if (isNew) {
response.setStatus(HttpStatus.CREATED.value());
}
else {
response.setStatus(HttpStatus.OK.value());
}
}
@StoreType("contentstore")
@RequestMapping(value = BASE_MAPPING, method = RequestMethod.PUT, headers = "content-type=multipart/form-data")
@ResponseBody
public void putMultipartContent(HttpServletResponse response,
@PathVariable String store, @PathVariable String id,
@RequestParam("file") MultipartFile multiPart)
throws IOException, HttpRequestMethodNotSupportedException,
InstantiationException, IllegalAccessException {
handleMultipart(response, store, id, multiPart);
}
@StoreType("contentstore")
@RequestMapping(value = BASE_MAPPING, method = RequestMethod.POST, headers = "content-type=multipart/form-data")
@ResponseBody
public void postMultipartContent(HttpServletResponse response,
@PathVariable String store, @PathVariable String id,
@RequestParam("file") MultipartFile multiPart)
throws IOException, HttpRequestMethodNotSupportedException,
InstantiationException, IllegalAccessException {
handleMultipart(response, store, id, multiPart);
}
@StoreType("contentstore")
@RequestMapping(value = BASE_MAPPING, method = RequestMethod.DELETE, headers = "accept!=application/hal+json")
public void deleteContent(HttpServletResponse response, @PathVariable String store,
@PathVariable String id)
throws HttpRequestMethodNotSupportedException, IOException {
ContentStoreInfo info = ContentStoreUtils.findContentStore(storeService, store);
if (info == null) {
throw new IllegalArgumentException(
String.format("Store for path %s not found", store));
}
Object domainObj = findOne(repositories, info.getDomainObjectClass(), id);
try (InputStream content = info.getImpementation().getContent(domainObj)) {
if (content == null) {
throw new ResourceNotFoundException();
}
}
info.getImpementation().unsetContent(domainObj);
// re-fetch to make sure we have the latest
if (BeanUtils.hasFieldWithAnnotation(domainObj, Version.class)) {
domainObj = findOne(repositories, info.getDomainObjectClass(), id);
}
if (BeanUtils.hasFieldWithAnnotation(domainObj, MimeType.class)) {
BeanUtils.setFieldWithAnnotation(domainObj, MimeType.class, null);
}
save(repositories, domainObj);
response.setStatus(HttpStatus.NO_CONTENT.value());
}
protected void handleMultipart(HttpServletResponse response, String store, String id,
MultipartFile multiPart)
throws HttpRequestMethodNotSupportedException, IOException {
ContentStoreInfo info = ContentStoreUtils.findContentStore(storeService, store);
if (info == null) {
throw new IllegalArgumentException(
String.format("Store for path %s not found", store));
}
Object domainObj = findOne(repositories, info.getDomainObjectClass(), id);
if (BeanUtils.hasFieldWithAnnotation(domainObj, MimeType.class)) {
BeanUtils.setFieldWithAnnotation(domainObj, MimeType.class,
multiPart.getContentType());
}
String originalFileName = multiPart.getOriginalFilename();
if (originalFileName != null && StringUtils.hasText(originalFileName)) {
if (BeanUtils.hasFieldWithAnnotation(domainObj, OriginalFileName.class)) {
BeanUtils.setFieldWithAnnotation(domainObj, OriginalFileName.class,
originalFileName);
}
}
info.getImpementation().setContent(domainObj, multiPart.getInputStream());
boolean isNew = true;
if (BeanUtils.hasFieldWithAnnotation(domainObj, ContentId.class)) {
isNew = (BeanUtils.getFieldWithAnnotation(domainObj,
ContentId.class) == null);
}
save(repositories, domainObj);
if (isNew) {
response.setStatus(HttpStatus.CREATED.value());
}
else {
response.setStatus(HttpStatus.OK.value());
}
}
}