Java Code Examples for org.springframework.core.io.support.ResourceRegion#getCount()
The following examples show how to use
org.springframework.core.io.support.ResourceRegion#getCount() .
You can vote up the ones you like or vote down the ones you don't like,
and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.
Example 1
| Source File: ResourceRegionHttpMessageConverter.java From spring-analysis-note with MIT License | 6 votes |
|
protected void writeResourceRegion(ResourceRegion region, HttpOutputMessage outputMessage) throws IOException {
Assert.notNull(region, "ResourceRegion must not be null");
HttpHeaders responseHeaders = outputMessage.getHeaders();
long start = region.getPosition();
long end = start + region.getCount() - 1;
Long resourceLength = region.getResource().contentLength();
end = Math.min(end, resourceLength - 1);
long rangeLength = end - start + 1;
responseHeaders.add("Content-Range", "bytes " + start + '-' + end + '/' + resourceLength);
responseHeaders.setContentLength(rangeLength);
InputStream in = region.getResource().getInputStream();
try {
StreamUtils.copyRange(in, outputMessage.getBody(), start, end);
}
finally {
try {
in.close();
}
catch (IOException ex) {
// ignore
}
}
}
Example 2
| Source File: ResourceHttpMessageWriter.java From spring-analysis-note with MIT License | 6 votes |
|
private static Optional<Mono<Void>> zeroCopy(Resource resource, @Nullable ResourceRegion region,
ReactiveHttpOutputMessage message, Map<String, Object> hints) {
if (message instanceof ZeroCopyHttpOutputMessage && resource.isFile()) {
try {
File file = resource.getFile();
long pos = region != null ? region.getPosition() : 0;
long count = region != null ? region.getCount() : file.length();
if (logger.isDebugEnabled()) {
String formatted = region != null ? "region " + pos + "-" + (count) + " of " : "";
logger.debug(Hints.getLogPrefix(hints) + "Zero-copy " + formatted + "[" + resource + "]");
}
return Optional.of(((ZeroCopyHttpOutputMessage) message).writeWith(file, pos, count));
}
catch (IOException ex) {
// should not happen
}
}
return Optional.empty();
}
Example 3
| Source File: HttpRange.java From spring-analysis-note with MIT License | 6 votes |
|
/**
* Convert each {@code HttpRange} into a {@code ResourceRegion}, selecting the
* appropriate segment of the given {@code Resource} using HTTP Range information.
* @param ranges the list of ranges
* @param resource the resource to select the regions from
* @return the list of regions for the given resource
* @throws IllegalArgumentException if the sum of all ranges exceeds the resource length
* @since 4.3
*/
public static List<ResourceRegion> toResourceRegions(List<HttpRange> ranges, Resource resource) {
if (CollectionUtils.isEmpty(ranges)) {
return Collections.emptyList();
}
List<ResourceRegion> regions = new ArrayList<>(ranges.size());
for (HttpRange range : ranges) {
regions.add(range.toResourceRegion(resource));
}
if (ranges.size() > 1) {
long length = getLengthFor(resource);
long total = 0;
for (ResourceRegion region : regions) {
total += region.getCount();
}
if (total >= length) {
throw new IllegalArgumentException("The sum of all ranges (" + total +
") should be less than the resource length (" + length + ")");
}
}
return regions;
}
Example 4
| Source File: ResourceRegionHttpMessageConverter.java From java-technology-stack with MIT License | 6 votes |
|
protected void writeResourceRegion(ResourceRegion region, HttpOutputMessage outputMessage) throws IOException {
Assert.notNull(region, "ResourceRegion must not be null");
HttpHeaders responseHeaders = outputMessage.getHeaders();
long start = region.getPosition();
long end = start + region.getCount() - 1;
Long resourceLength = region.getResource().contentLength();
end = Math.min(end, resourceLength - 1);
long rangeLength = end - start + 1;
responseHeaders.add("Content-Range", "bytes " + start + '-' + end + '/' + resourceLength);
responseHeaders.setContentLength(rangeLength);
InputStream in = region.getResource().getInputStream();
try {
StreamUtils.copyRange(in, outputMessage.getBody(), start, end);
}
finally {
try {
in.close();
}
catch (IOException ex) {
// ignore
}
}
}
Example 5
| Source File: ResourceHttpMessageWriter.java From java-technology-stack with MIT License | 6 votes |
|
private static Optional<Mono<Void>> zeroCopy(Resource resource, @Nullable ResourceRegion region,
ReactiveHttpOutputMessage message, Map<String, Object> hints) {
if (message instanceof ZeroCopyHttpOutputMessage && resource.isFile()) {
try {
File file = resource.getFile();
long pos = region != null ? region.getPosition() : 0;
long count = region != null ? region.getCount() : file.length();
if (logger.isDebugEnabled()) {
String formatted = region != null ? "region " + pos + "-" + (count) + " of " : "";
logger.debug(Hints.getLogPrefix(hints) + "Zero-copy " + formatted + "[" + resource + "]");
}
return Optional.of(((ZeroCopyHttpOutputMessage) message).writeWith(file, pos, count));
}
catch (IOException ex) {
// should not happen
}
}
return Optional.empty();
}
Example 6
| Source File: ResourceRegionHttpMessageConverter.java From lams with GNU General Public License v2.0 | 6 votes |
|
protected void writeResourceRegion(ResourceRegion region, HttpOutputMessage outputMessage) throws IOException {
Assert.notNull(region, "ResourceRegion must not be null");
HttpHeaders responseHeaders = outputMessage.getHeaders();
long start = region.getPosition();
long end = start + region.getCount() - 1;
Long resourceLength = region.getResource().contentLength();
end = Math.min(end, resourceLength - 1);
long rangeLength = end - start + 1;
responseHeaders.add("Content-Range", "bytes " + start + '-' + end + '/' + resourceLength);
responseHeaders.setContentLength(rangeLength);
InputStream in = region.getResource().getInputStream();
try {
StreamUtils.copyRange(in, outputMessage.getBody(), start, end);
}
finally {
try {
in.close();
}
catch (IOException ex) {
// ignore
}
}
}
Example 7
| Source File: RangeAwareResourceRegionHttpMessageConverter.java From engine with GNU General Public License v3.0 | 6 votes |
|
protected void writeResourceRegion(ResourceRegion region, HttpOutputMessage outputMessage) throws IOException {
Assert.notNull(region, "ResourceRegion must not be null");
HttpHeaders responseHeaders = outputMessage.getHeaders();
long start = region.getPosition();
long end = start + region.getCount() - 1;
Long resourceLength = region.getResource().contentLength();
end = Math.min(end, resourceLength - 1);
long rangeLength = end - start + 1;
responseHeaders.add("Content-Range", "bytes " + start + '-' + end + '/' + resourceLength);
responseHeaders.setContentLength(rangeLength);
InputStream in = null;
try {
Resource resource = region.getResource();
if (resource instanceof RangeAwareResource) {
in = ((RangeAwareResource) resource).getInputStream(start, end);
StreamUtils.copy(in, outputMessage.getBody());
} else {
in = resource.getInputStream();
StreamUtils.copyRange(in, outputMessage.getBody(), start, end);
}
} finally {
IOUtils.closeQuietly(in);
}
}
Example 8
| Source File: ResourceRegionEncoder.java From spring-analysis-note with MIT License | 5 votes |
|
private Flux<DataBuffer> writeResourceRegion(
ResourceRegion region, DataBufferFactory bufferFactory, @Nullable Map<String, Object> hints) {
Resource resource = region.getResource();
long position = region.getPosition();
long count = region.getCount();
if (logger.isDebugEnabled() && !Hints.isLoggingSuppressed(hints)) {
logger.debug(Hints.getLogPrefix(hints) +
"Writing region " + position + "-" + (position + count) + " of [" + resource + "]");
}
Flux<DataBuffer> in = DataBufferUtils.read(resource, position, bufferFactory, this.bufferSize);
return DataBufferUtils.takeUntilByteCount(in, count);
}
Example 9
| Source File: ResourceRegionEncoder.java From spring-analysis-note with MIT License | 5 votes |
|
private byte[] getContentRangeHeader(ResourceRegion region) {
long start = region.getPosition();
long end = start + region.getCount() - 1;
OptionalLong contentLength = contentLength(region.getResource());
if (contentLength.isPresent()) {
long length = contentLength.getAsLong();
return toAsciiBytes("Content-Range: bytes " + start + '-' + end + '/' + length + "\r\n\r\n");
}
else {
return toAsciiBytes("Content-Range: bytes " + start + '-' + end + "\r\n\r\n");
}
}
Example 10
| Source File: ResourceRegionEncoder.java From java-technology-stack with MIT License | 5 votes |
|
private Flux<DataBuffer> writeResourceRegion(
ResourceRegion region, DataBufferFactory bufferFactory, @Nullable Map<String, Object> hints) {
Resource resource = region.getResource();
long position = region.getPosition();
long count = region.getCount();
if (logger.isDebugEnabled() && !Hints.isLoggingSuppressed(hints)) {
logger.debug(Hints.getLogPrefix(hints) +
"Writing region " + position + "-" + (position + count) + " of [" + resource + "]");
}
Flux<DataBuffer> in = DataBufferUtils.read(resource, position, bufferFactory, this.bufferSize);
return DataBufferUtils.takeUntilByteCount(in, count);
}
Example 11
| Source File: ResourceRegionEncoder.java From java-technology-stack with MIT License | 5 votes |
|
private byte[] getContentRangeHeader(ResourceRegion region) {
long start = region.getPosition();
long end = start + region.getCount() - 1;
OptionalLong contentLength = contentLength(region.getResource());
if (contentLength.isPresent()) {
long length = contentLength.getAsLong();
return getAsciiBytes("Content-Range: bytes " + start + '-' + end + '/' + length + "\r\n\r\n");
}
else {
return getAsciiBytes("Content-Range: bytes " + start + '-' + end + "\r\n\r\n");
}
}
Example 12
| Source File: ResourceRegionHttpMessageConverter.java From spring-analysis-note with MIT License | 4 votes |
|
private void writeResourceRegionCollection(Collection<ResourceRegion> resourceRegions,
HttpOutputMessage outputMessage) throws IOException {
Assert.notNull(resourceRegions, "Collection of ResourceRegion should not be null");
HttpHeaders responseHeaders = outputMessage.getHeaders();
MediaType contentType = responseHeaders.getContentType();
String boundaryString = MimeTypeUtils.generateMultipartBoundaryString();
responseHeaders.set(HttpHeaders.CONTENT_TYPE, "multipart/byteranges; boundary=" + boundaryString);
OutputStream out = outputMessage.getBody();
for (ResourceRegion region : resourceRegions) {
long start = region.getPosition();
long end = start + region.getCount() - 1;
InputStream in = region.getResource().getInputStream();
try {
// Writing MIME header.
println(out);
print(out, "--" + boundaryString);
println(out);
if (contentType != null) {
print(out, "Content-Type: " + contentType.toString());
println(out);
}
Long resourceLength = region.getResource().contentLength();
end = Math.min(end, resourceLength - 1);
print(out, "Content-Range: bytes " + start + '-' + end + '/' + resourceLength);
println(out);
println(out);
// Printing content
StreamUtils.copyRange(in, out, start, end);
}
finally {
try {
in.close();
}
catch (IOException ex) {
// ignore
}
}
}
println(out);
print(out, "--" + boundaryString + "--");
}
Example 13
| Source File: ResourceRegionHttpMessageConverter.java From java-technology-stack with MIT License | 4 votes |
|
private void writeResourceRegionCollection(Collection<ResourceRegion> resourceRegions,
HttpOutputMessage outputMessage) throws IOException {
Assert.notNull(resourceRegions, "Collection of ResourceRegion should not be null");
HttpHeaders responseHeaders = outputMessage.getHeaders();
MediaType contentType = responseHeaders.getContentType();
String boundaryString = MimeTypeUtils.generateMultipartBoundaryString();
responseHeaders.set(HttpHeaders.CONTENT_TYPE, "multipart/byteranges; boundary=" + boundaryString);
OutputStream out = outputMessage.getBody();
for (ResourceRegion region : resourceRegions) {
long start = region.getPosition();
long end = start + region.getCount() - 1;
InputStream in = region.getResource().getInputStream();
try {
// Writing MIME header.
println(out);
print(out, "--" + boundaryString);
println(out);
if (contentType != null) {
print(out, "Content-Type: " + contentType.toString());
println(out);
}
Long resourceLength = region.getResource().contentLength();
end = Math.min(end, resourceLength - 1);
print(out, "Content-Range: bytes " + start + '-' + end + '/' + resourceLength);
println(out);
println(out);
// Printing content
StreamUtils.copyRange(in, out, start, end);
}
finally {
try {
in.close();
}
catch (IOException ex) {
// ignore
}
}
}
println(out);
print(out, "--" + boundaryString + "--");
}
Example 14
| Source File: ResourceRegionHttpMessageConverter.java From lams with GNU General Public License v2.0 | 4 votes |
|
private void writeResourceRegionCollection(Collection<ResourceRegion> resourceRegions,
HttpOutputMessage outputMessage) throws IOException {
Assert.notNull(resourceRegions, "Collection of ResourceRegion should not be null");
HttpHeaders responseHeaders = outputMessage.getHeaders();
MediaType contentType = responseHeaders.getContentType();
String boundaryString = MimeTypeUtils.generateMultipartBoundaryString();
responseHeaders.set(HttpHeaders.CONTENT_TYPE, "multipart/byteranges; boundary=" + boundaryString);
OutputStream out = outputMessage.getBody();
for (ResourceRegion region : resourceRegions) {
long start = region.getPosition();
long end = start + region.getCount() - 1;
InputStream in = region.getResource().getInputStream();
try {
// Writing MIME header.
println(out);
print(out, "--" + boundaryString);
println(out);
if (contentType != null) {
print(out, "Content-Type: " + contentType.toString());
println(out);
}
Long resourceLength = region.getResource().contentLength();
end = Math.min(end, resourceLength - 1);
print(out, "Content-Range: bytes " + start + '-' + end + '/' + resourceLength);
println(out);
println(out);
// Printing content
StreamUtils.copyRange(in, out, start, end);
}
finally {
try {
in.close();
}
catch (IOException ex) {
// ignore
}
}
}
println(out);
print(out, "--" + boundaryString + "--");
}
Example 15
| Source File: RangeAwareResourceRegionHttpMessageConverter.java From engine with GNU General Public License v3.0 | 4 votes |
|
protected void writeResourceRegionCollection(Collection<ResourceRegion> resourceRegions,
HttpOutputMessage outputMessage) throws IOException {
Assert.notNull(resourceRegions, "Collection of ResourceRegion should not be null");
HttpHeaders responseHeaders = outputMessage.getHeaders();
MediaType contentType = responseHeaders.getContentType();
String boundaryString = MimeTypeUtils.generateMultipartBoundaryString();
responseHeaders.set(HttpHeaders.CONTENT_TYPE, "multipart/byteranges; boundary=" + boundaryString);
OutputStream out = outputMessage.getBody();
for (ResourceRegion region : resourceRegions) {
long start = region.getPosition();
long end = start + region.getCount() - 1;
InputStream in = null;
try {
// Writing MIME header.
println(out);
print(out, "--" + boundaryString);
println(out);
if (contentType != null) {
print(out, "Content-Type: " + contentType.toString());
println(out);
}
Long resourceLength = region.getResource().contentLength();
end = Math.min(end, resourceLength - 1);
print(out, "Content-Range: bytes " + start + '-' + end + '/' + resourceLength);
println(out);
println(out);
// Printing content
Resource resource = region.getResource();
if (resource instanceof RangeAwareResource) {
in = ((RangeAwareResource) resource).getInputStream(start, end);
StreamUtils.copy(in, out);
} else {
in = resource.getInputStream();
StreamUtils.copyRange(in, out, start, end);
}
} finally {
IOUtils.closeQuietly(in);
}
}
println(out);
print(out, "--" + boundaryString + "--");
}
