Examples of org.apache.camel.converter.stream.CachedOutputStream

Package org.apache.camel.converter.stream

Examples of org.apache.camel.converter.stream.CachedOutputStream

org.apache.camel.converter.stream.CachedOutputStream
This output stream will store the content into a File if the stream context size is exceed the THRESHOLD which's default value is 64K. The temp file will store in the temp directory, you can configure it by setting the TEMP_DIR property. If you don't set the TEMP_DIR property, it will choose the directory which is set by the system property of "java.io.tmpdir". You can get a cached input stream of this stream. The temp file which is created with this output stream will be deleted when you close this output stream or the all cached fileInputStream is closed after the exchange is completed.

    }


    private static InputStream doExtractResponseBodyAsStream(InputStream is, Exchange exchange) throws IOException {
        // As httpclient is using a AutoCloseInputStream, it will be closed when the connection is closed
        // we need to cache the stream for it.
        CachedOutputStream cos = null;
        try {
            // This CachedOutputStream will not be closed when the exchange is onCompletion
            cos = new CachedOutputStream(exchange, false);
            IOHelper.copy(is, cos);
            // When the InputStream is closed, the CachedOutputStream will be closed
            return cos.getWrappedInputStream();
        } catch (IOException ex) {
            // try to close the CachedOutputStream when we get the IOException
            try {
                cos.close();
            } catch (IOException ignore) {
                //do nothing here
            }
            throw ex;
        } finally {

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        // convert the input stream to StreamCache if the stream cache is not disabled
        if (exchange.getProperty(Exchange.DISABLE_HTTP_STREAM_CACHE, Boolean.FALSE, Boolean.class)) {
            return is;
        } else {
            CachedOutputStream cos = new CachedOutputStream(exchange);
            IOHelper.copyAndCloseInput(is, cos);
            return cos.newStreamCache();
        }
    }

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        if (is != null) {
            ServletOutputStream os = response.getOutputStream();
            LOG.trace("Writing direct response from source input stream to servlet output stream");
            if (!checkChunked(message, exchange)) {
                CachedOutputStream stream = new CachedOutputStream(exchange);
                try {
                    // copy directly from input stream to the cached output stream to get the content length
                    int len = IOHelper.copy(is, stream);
                    // we need to setup the length if message is not chucked
                    response.setContentLength(len);
                    copyStream(stream.getInputStream(), os);
                } finally {
                    IOHelper.close(is, stream);
                }
            } else {
                copyStream(is, os);

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            if (md.getType().equals(StorageType.BLOB)) {
                if (!Strings.isNullOrEmpty(blobName)) {
                    InputStream body = JcloudsBlobStoreHelper.readBlob(blobStore, container, blobName);
                    if (body != null) {
                        Exchange exchange = endpoint.createExchange();
                        CachedOutputStream cos = new CachedOutputStream(exchange);
                        IOHelper.copy(body, cos);
                        exchange.getIn().setBody(cos.newStreamCache());
                        exchange.setProperty(JcloudsConstants.BLOB_NAME, blobName);
                        queue.add(exchange);
                    }
                }
            }

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            long contentLength = ByteStreams.length(payload);
            is.reset();
            payload.getContentMetadata().setContentLength(contentLength);
            return payload;
        } else {
            CachedOutputStream cos = new CachedOutputStream(exchange);
            IOHelper.copy(is, cos);
            return toPayload(cos.getWrappedInputStream(), exchange);
        }
    }

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        }


        if (is != null) {
            ServletOutputStream os = response.getOutputStream();
            if (!checkChunked(message, exchange)) {
                CachedOutputStream stream = new CachedOutputStream(exchange);
                try {
                    // copy directly from input stream to the cached output stream to get the content length
                    int len = copyStream(is, stream, response.getBufferSize());
                    // we need to setup the length if message is not chucked
                    response.setContentLength(len);
                    OutputStream current = stream.getCurrentStream();
                    if (current instanceof ByteArrayOutputStream) {
                        if (LOG.isDebugEnabled()) {
                            LOG.debug("Streaming (direct) response in non-chunked mode with content-length {}");
                        }
                        ByteArrayOutputStream bos = (ByteArrayOutputStream) current;
                        bos.writeTo(os);
                    } else {
                        if (LOG.isDebugEnabled()) {
                            LOG.debug("Streaming response in non-chunked mode with content-length {} and buffer size: {}", len, len);
                        }
                        copyStream(stream.getInputStream(), os, len);
                    }
                } finally {
                    IOHelper.close(is, os);
                }
            } else {

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    }


    private static InputStream doExtractResponseBodyAsStream(InputStream is, Exchange exchange) throws IOException {
        // As httpclient is using a AutoCloseInputStream, it will be closed when the connection is closed
        // we need to cache the stream for it.
        CachedOutputStream cos = null;
        try {
            // This CachedOutputStream will not be closed when the exchange is onCompletion
            cos = new CachedOutputStream(exchange, false);
            IOHelper.copy(is, cos);
            // When the InputStream is closed, the CachedOutputStream will be closed
            return cos.getWrappedInputStream();
        } catch (IOException ex) {
            // try to close the CachedOutputStream when we get the IOException
            try {
                cos.close();
            } catch (IOException ignore) {
                //do nothing here
            }
            throw ex;
        } finally {

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        // convert the input stream to StreamCache if the stream cache is not disabled
        if (exchange.getProperty(Exchange.DISABLE_HTTP_STREAM_CACHE, Boolean.FALSE, Boolean.class)) {
            return is;
        } else {
            CachedOutputStream cos = new CachedOutputStream(exchange);
            IOHelper.copyAndCloseInput(is, cos);
            return cos.newStreamCache();
        }
    }

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        // convert the input stream to StreamCache if the stream cache is not disabled
        if (exchange.getProperty(Exchange.DISABLE_HTTP_STREAM_CACHE, Boolean.FALSE, Boolean.class)) {
            return is;
        } else {
            CachedOutputStream cos = new CachedOutputStream(exchange);
            IOHelper.copyAndCloseInput(is, cos);
            return cos.newStreamCache();
        }
    }

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    private static InputStream doExtractResponseBodyAsStream(InputStream is, Exchange exchange) throws IOException {
        // As httpclient is using a AutoCloseInputStream, it will be closed when the connection is closed
        // we need to cache the stream for it.
        try {
            // This CachedOutputStream will not be closed when the exchange is onCompletion
            CachedOutputStream cos = new CachedOutputStream(exchange, false);
            IOHelper.copy(is, cos);
            // When the InputStream is closed, the CachedOutputStream will be closed
            return cos.getWrappedInputStream();
        } finally {
            IOHelper.close(is, "Extracting response body", LOG);
        }
    }

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