protected ResourceResponse newResourceResponse()

in wicket-core/src/main/java/org/apache/wicket/request/resource/ResourceStreamResource.java [138:220]
76 lines of code
11 McCabe index (conditional complexity)

	protected ResourceResponse newResourceResponse(Attributes attributes)
	{
		final IResourceStream resourceStream = internalGetResourceStream(attributes);
		ResourceResponse data = new ResourceResponse();
		Instant lastModifiedTime = resourceStream.lastModifiedTime();
		if (lastModifiedTime != null)
		{
			data.setLastModified(lastModifiedTime);
		}

		if (cacheDuration != null)
		{
			data.setCacheDuration(cacheDuration);
		}

		// performance check; don't bother to do anything if the resource is still cached by client
		if (data.dataNeedsToBeWritten(attributes))
		{
			InputStream inputStream = null;
			if (resourceStream instanceof IResourceStreamWriter == false)
			{
				try
				{
					inputStream = resourceStream.getInputStream();
				}
				catch (ResourceStreamNotFoundException e)
				{
					data.setError(HttpServletResponse.SC_NOT_FOUND);
					close(resourceStream);
				}
			}

			data.setContentDisposition(contentDisposition);
			Bytes length = resourceStream.length();
			if (length != null)
			{
				data.setContentLength(length.bytes());
			}
			data.setFileName(fileName);

			String contentType = resourceStream.getContentType();
			if (contentType == null && fileName != null && Application.exists())
			{
				contentType = Application.get().getMimeType(fileName);
			}
			data.setContentType(contentType);
			data.setTextEncoding(textEncoding);

			if (resourceStream instanceof IResourceStreamWriter)
			{
				data.setWriteCallback(new WriteCallback()
				{
					@Override
					public void writeData(Attributes attributes) throws IOException
					{
						((IResourceStreamWriter)resourceStream).write(attributes.getResponse().getOutputStream());
						close(resourceStream);
					}
				});
			}
			else
			{
				final InputStream s = inputStream;
				data.setWriteCallback(new WriteCallback()
				{
					@Override
					public void writeData(Attributes attributes) throws IOException
					{
						try
						{
							writeStream(attributes, s);
						}
						finally
						{
							close(resourceStream);
						}
					}
				});
			}
		}

		return data;
	}