use of org.apache.tapestry5.internal.services.assets.StreamableResourceImpl in project tapestry-5 by apache.
the class StreamableResourceSourceImpl method getStreamableResource.
public StreamableResource getStreamableResource(Resource baseResource, StreamableResourceProcessing processing, ResourceDependencies dependencies) throws IOException {
assert baseResource != null;
if (!baseResource.exists()) {
throw new IOException(String.format("Resource %s does not exist.", baseResource));
}
String fileSuffix = TapestryInternalUtils.toFileSuffix(baseResource.getFile());
// Optionally, transform the resource. The main driver for this is to allow
// for libraries like LessJS (http://lesscss.org/) or
// http://jashkenas.github.com/coffee-script/
ResourceTransformer rt = configuration.get(fileSuffix);
InputStream transformed = rt == null ? baseResource.openStream() : rt.transform(baseResource, dependencies);
assert transformed != null;
BytestreamCache bytestreamCache = readStream(transformed);
transformed.close();
ContentType contentType = rt == null ? new ContentType(contentTypeAnalyzer.getContentType(baseResource)) : rt.getTransformedContentType();
boolean compressable = compressionAnalyzer.isCompressable(contentType.getMimeType());
long lastModified = resourceChangeTracker.trackResource(baseResource);
return new StreamableResourceImpl(baseResource.toString(), contentType, compressable ? CompressionStatus.COMPRESSABLE : CompressionStatus.NOT_COMPRESSABLE, lastModified, bytestreamCache, checksumGenerator, null);
}
use of org.apache.tapestry5.internal.services.assets.StreamableResourceImpl in project tapestry-5 by apache.
the class AbstractMinimizer method minimize.
@Override
public StreamableResource minimize(final StreamableResource input) throws IOException {
if (!isEnabled(input)) {
return input;
}
long startNanos = System.nanoTime();
final ByteArrayOutputStream bos = new ByteArrayOutputStream(1000);
tracker.perform("Minimizing " + input, new IOOperation<Void>() {
@Override
public Void perform() throws IOException {
InputStream in = doMinimize(input);
TapestryInternalUtils.copy(in, bos);
in.close();
return null;
}
});
// The content is minimized, but can still be (GZip) compressed.
StreamableResource output = new StreamableResourceImpl("minimized " + input.getDescription(), input.getContentType(), CompressionStatus.COMPRESSABLE, input.getLastModified(), new BytestreamCache(bos), checksumGenerator, input.getResponseCustomizer());
if (logger.isInfoEnabled()) {
long elapsedNanos = System.nanoTime() - startNanos;
int inputSize = input.getSize();
int outputSize = output.getSize();
double elapsedMillis = ((double) elapsedNanos) * NANOS_TO_MILLIS;
// e.g., reducing 100 bytes to 25 would be a (100-25)/100 reduction, or 75%
double reduction = 100d * ((double) (inputSize - outputSize)) / ((double) inputSize);
logger.info(String.format("Minimized %s (%,d input bytes of %s to %,d output bytes in %.2f ms, %.2f%% reduction)", input.getDescription(), inputSize, resourceType, outputSize, elapsedMillis, reduction));
}
return output;
}
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