@Override
public DeleteResponse delete(DeleteRequest deleteRequest, Request.Directive directive)
throws ContentFrameworkException {
logger.trace("ENTERING: delete");
DeleteResponse deleteResponse = null;
// If directive includes processing and there are no ContentPlugins currently installed to
// support processing, then throw an exception. (Do not want to do the STORE and get the
// content repository out of sync with the Metadata Catalog.)
if ((directive == Directive.PROCESS || directive == Directive.STORE_AND_PROCESS)
&& (this.contentPlugins.size() == 0)) {
throw new ContentFrameworkException(
"Unable to perform " + directive + " because no ContentPlugins are installed.");
}
if (directive == Directive.STORE || directive == Directive.STORE_AND_PROCESS) {
try {
deleteResponse = this.provider.delete(deleteRequest);
} catch (StorageException e) {
throw new ContentFrameworkException(e);
} catch (Exception e) {
logger.warn("Content Provider error during delete", e);
throw new ContentFrameworkException(
"Unable to perform delete because no content storage provider is installed or there is a problem with the content storage provider.",
e);
}
}
if (directive == Directive.PROCESS || directive == Directive.STORE_AND_PROCESS) {
if (directive == Directive.PROCESS) {
// No content deletion occurred to return a DeleteResponse. So need to
// instantiate a DeleteResponse with the original DeleteRequest's ContentItem
// in it.
if (deleteResponse == null) {
deleteResponse =
new DeleteResponseImpl(deleteRequest, deleteRequest.getContentItem(), false);
}
}
for (final ContentPlugin plugin : contentPlugins) {
try {
deleteResponse = plugin.process(deleteResponse);
} catch (PluginExecutionException e) {
logger.info(
"Content Plugin processing failed. This is allowable. Skipping to next plugin.", e);
}
}
}
logger.trace("EXITING: delete");
return deleteResponse;
}
@Override
public CreateResponse create(CreateRequest createRequest, Request.Directive directive)
throws ContentFrameworkException {
logger.trace("ENTERING: create");
logger.debug("directive = " + directive);
CreateResponse createResponse = null;
// If directive includes processing and there are no ContentPlugins currently installed to
// support processing, then throw an exception. (Do not want to do the STORE and get the
// content repository out of sync with the Metadata Catalog.)
if ((directive == Directive.PROCESS || directive == Directive.STORE_AND_PROCESS)
&& (this.contentPlugins.size() == 0)) {
throw new ContentFrameworkException(
"Unable to perform " + directive + " because no ContentPlugins are installed.");
}
// Recreate content item so can add GUID to request
ContentItem incomingContentItem = createRequest.getContentItem();
String id = UUID.randomUUID().toString().replaceAll("-", "");
logger.debug("Created GUID: " + id);
try {
ContentItem contentItem =
new IncomingContentItem(
id,
incomingContentItem.getInputStream(),
incomingContentItem.getMimeTypeRawData(),
incomingContentItem.getFilename());
contentItem.setUri(incomingContentItem.getUri());
createRequest = new CreateRequestImpl(contentItem, createRequest.getProperties());
} catch (IOException e1) {
throw new ContentFrameworkException("Unable to add ID to IncomingContentItem", e1);
}
if (directive == Directive.STORE || directive == Directive.STORE_AND_PROCESS) {
try {
createResponse = provider.create(createRequest);
} catch (StorageException e) {
throw new ContentFrameworkException(e);
} catch (Exception e) {
logger.warn("Content Provider error during create", e);
throw new ContentFrameworkException(
"Unable to perform create because no content storage provider is installed or there is a problem with the content storage provider.",
e);
}
}
if (directive == Directive.PROCESS || directive == Directive.STORE_AND_PROCESS) {
if (directive == Directive.PROCESS) {
// No content storage occurred to return a CreateResponse. So need to
// instantiate a CreateResponse with the original CreateRequest's ContentItem
// in it.
if (createResponse == null) {
createResponse = new CreateResponseImpl(createRequest, createRequest.getContentItem());
}
}
logger.debug("Number of ContentPlugins = " + contentPlugins.size());
// Execute each ContentPlugin on the content item. If any plugin fails, then
// assume the entire transaction fails, rolling back the storage of the content
// item in the content repository (if applicable)
try {
for (final ContentPlugin plugin : contentPlugins) {
createResponse = plugin.process(createResponse);
}
} catch (PluginExecutionException e) {
logger.info("Content Plugin processing failed.", e);
// If a STORE_AND_PROCESS directive was being done, will need to delete the
// stored content item from the content repository (similar to a rollback)
if (directive == Directive.STORE_AND_PROCESS) {
String contentId = createResponse.getCreatedContentItem().getId();
logger.debug("Doing storage rollback - Deleting content item " + contentId);
ContentItem itemToDelete = new IncomingContentItem(contentId, null, null);
itemToDelete.setUri(incomingContentItem.getUri());
DeleteRequest deleteRequest = new DeleteRequestImpl(itemToDelete, null);
try {
this.provider.delete(deleteRequest);
} catch (Exception e2) {
logger.warn(
"Unable to perform delete because no content storage provider is installed or there is a problem with the content storage provider.",
e2);
}
// Re-throw the exception (this will fail the Camel route that may have
// started this request)
throw new ContentFrameworkException(
"Content Plugin processing failed. Did not store item in content repository and did not create catalog entry.\n"
+ e.getMessage(),
e);
} else {
// Re-throw the exception (this will fail the Camel route that may have
// started this request)
throw new ContentFrameworkException(
"Content Plugin processing failed. Did not create catalog entry.\n" + e.getMessage(),
e);
}
}
}
logger.trace("EXITING: create");
return createResponse;
}
@Override
public UpdateResponse update(final UpdateRequest updateRequest, Request.Directive directive)
throws ContentFrameworkException {
logger.trace("ENTERING: update");
UpdateResponse updateResponse = null;
// If directive includes processing and there are no ContentPlugins currently installed to
// support processing, then throw an exception. (Do not want to do the STORE and get the
// content repository out of sync with the Metadata Catalog.)
if ((directive == Directive.PROCESS || directive == Directive.STORE_AND_PROCESS)
&& (this.contentPlugins.size() == 0)) {
throw new ContentFrameworkException(
"Unable to perform " + directive + " because no ContentPlugins are installed.");
}
ContentItem itemToUpdate = updateRequest.getContentItem();
if (directive == Directive.STORE || directive == Directive.STORE_AND_PROCESS) {
// Verify content item exists in content repository before trying to update it
try {
ReadRequest readRequest = new ReadRequestImpl(updateRequest.getContentItem().getId(), null);
this.provider.read(readRequest);
} catch (StorageException e) {
logger.info("File does not exist, cannot update, doing a create: ", e);
throw new ContentFrameworkException(
"File does not exist, cannot update, doing a create: ", e);
} catch (Exception e) {
logger.warn("Content Provider error during update", e);
throw new ContentFrameworkException(
"Unable to perform update because no content storage provider is installed or there is a problem with the content storage provider.",
e);
}
logger.info("Updating content repository for content item: " + itemToUpdate.getId());
try {
updateResponse = this.provider.update(updateRequest);
try {
logger.debug(
"updated item file length = " + updateResponse.getUpdatedContentItem().getSize());
} catch (IOException ioe) {
}
} catch (StorageException e) {
throw new ContentFrameworkException(e);
} catch (Exception e) {
logger.warn("Content Provider error during update", e);
throw new ContentFrameworkException(
"Unable to perform update because no content storage provider is installed or there is a problem with the content storage provider.",
e);
}
}
if (directive == Directive.PROCESS || directive == Directive.STORE_AND_PROCESS) {
if (directive == Directive.PROCESS) {
// No content update occurred to return an UpdateResponse. So need to
// instantiate an UpdateResponse with the original UpdateRequest's ContentItem
// in it.
if (updateResponse == null) {
updateResponse = new UpdateResponseImpl(updateRequest, updateRequest.getContentItem());
}
}
// Execute each ContentPlugin on the content item. If any plugin fails, then
// assume the entire transaction fails, rolling back the storage of the content
// item in the content repository (if applicable)
try {
for (final ContentPlugin plugin : contentPlugins) {
updateResponse = plugin.process(updateResponse);
}
} catch (PluginExecutionException e) {
logger.info("Content Plugin processing failed.", e);
// Re-throw the exception (this will fail the Camel route that may have
// started this request)
throw new ContentFrameworkException(
"Content Plugin processing failed. " + e.getMessage(), e);
}
}
logger.trace("EXITING: update");
return updateResponse;
}
