@COPY
public Message copy(
@PathTranslated Path path, @Destination URI destinationUri, @Overwrite boolean overwrite)
throws IOException {
final Resource source = resolveResource(path);
final Resource destination = resolveResource(Path.fromString(destinationUri.getPath()));
if (destination.isLocked()) {
return clientErrorLocked();
}
if (source.exists()) {
if (source.isCollection()) { // source exists
if (destination.exists()) { // source exists and is a collection
if (destination.isCollection()) {
return (overwrite
? copyCollectionToCollection(source, destination, overwrite)
: clientErrorPreconditionFailed());
} else {
return (overwrite
? copyCollectionToResource(source, destination, overwrite)
: clientErrorPreconditionFailed());
}
} else {
return (destination.parent().exists()
? copyCollectionToCollection(source, destination, false)
: clientErrorPreconditionFailed());
}
} else {
if (destination.exists()) { // source exists
if (destination.isCollection()) { // source exists,
return (overwrite
? copyResourceToCollection(source, destination, overwrite)
: clientErrorPreconditionFailed());
} else {
return (overwrite
? copyResourceToResource(source, destination, overwrite)
: clientErrorPreconditionFailed());
}
} else {
if (destination.parent().exists()) {
return (overwrite
? clientErrorPreconditionFailed()
: copyResourceToCollection(source, destination, overwrite));
} else {
return clientErrorConflict();
}
}
}
} else {
return clientErrorNotFound();
}
}
private Message handleRequestWithIfMatch(Request request) throws IOException {
final Path path = Path.fromString(request.uri().getPath());
final Resource resource = resolveResource(path);
final String ifMatch = getOnlyElement(request.headers().get(Header.IF_MATCH));
if (ifMatch.equals("*") || !ifMatch.equals(resource.etag())) {
return handleRequestWithoutIfMatch(request);
} else {
return Response.clientErrorPreconditionFailed();
}
}
private Message handleRequestWithoutRange(Request request) {
final Path path = Path.fromUri(request.uri());
final Resource resource = resolveResource(path);
try {
return Response.build(SUCCESS_OK)
.header(CONTENT_TYPE)
.set(APPLICATION_OCTET_STREAM.toString())
.setBody(resource.channel());
} catch (IOException e) {
return serverErrorInternal();
}
}
private Message handleRequestWithIfModifiedSince(final Request request) throws IOException {
final Path path = Path.fromUri(request.uri());
final Resource resource = resolveResource(path);
try {
String date = getOnlyElement(request.headers().get(IF_MODIFIED_SINCE));
Date ifModifiedSince = new SimpleDateFormat().parse(date);
if (!ifModifiedSince.after(new Date()) && !(resource.lastModified().after(new Date()))) {
return redirectionNotModified();
} else {
return handleRequestWithoutIfModifiedSince(request);
}
} catch (ParseException e) {
return handleRequestWithoutIfModifiedSince(request);
}
}