Examples with InputStream java.io.InputStream used on opensource projects

Example 76 with InputStream

use of java.io.InputStream in project camel by apache.

the class NIOConverter method toByteBuffer.

@Converter
public static ByteBuffer toByteBuffer(File file) throws IOException {
    InputStream in = null;
    try {
        byte[] buf = new byte[(int) file.length()];
        in = IOHelper.buffered(new FileInputStream(file));
        int sizeLeft = (int) file.length();
        int offset = 0;
        while (sizeLeft > 0) {
            int readSize = in.read(buf, offset, sizeLeft);
            sizeLeft -= readSize;
            offset += readSize;
        }
        return ByteBuffer.wrap(buf);
    } finally {
        IOHelper.close(in, "Failed to close file stream: " + file.getPath(), LOG);
    }
}

Example 77 with InputStream

use of java.io.InputStream in project camel by apache.

the class XmlConverter method toStAXSource.

/**
     * Converts the source instance to a {@link StAXSource} or returns null if the conversion is not
     * supported (making it easy to derive from this class to add new kinds of conversion).
     * @throws FileNotFoundException
     * @throws XMLStreamException
     */
@Converter
public StAXSource toStAXSource(File file, Exchange exchange) throws FileNotFoundException, XMLStreamException {
    InputStream is = IOHelper.buffered(new FileInputStream(file));
    XMLStreamReader r = new StaxConverter().createXMLStreamReader(is, exchange);
    return new StAXSource(r);
}

Example 78 with InputStream

use of java.io.InputStream in project camel by apache.

the class XmlConverter method toDOMSourceFromStream.

@Converter
public DOMSource toDOMSourceFromStream(StreamSource source, Exchange exchange) throws ParserConfigurationException, IOException, SAXException {
    Document document;
    String systemId = source.getSystemId();
    DocumentBuilder builder = getDocumentBuilderFactory(exchange).newDocumentBuilder();
    Reader reader = source.getReader();
    if (reader != null) {
        document = builder.parse(new InputSource(reader));
    } else {
        InputStream inputStream = source.getInputStream();
        if (inputStream != null) {
            InputSource inputsource = new InputSource(inputStream);
            inputsource.setSystemId(systemId);
            document = builder.parse(inputsource);
        } else {
            throw new IOException("No input stream or reader available on StreamSource: " + source);
        }
    }
    return new DOMSource(document, systemId);
}

Example 79 with InputStream

use of java.io.InputStream in project camel by apache.

the class ManagedCamelContext method dumpRoutesAsXml.

@Override
public String dumpRoutesAsXml(boolean resolvePlaceholders) throws Exception {
    List<RouteDefinition> routes = context.getRouteDefinitions();
    if (routes.isEmpty()) {
        return null;
    }
    // use a routes definition to dump the routes
    RoutesDefinition def = new RoutesDefinition();
    def.setRoutes(routes);
    String xml = ModelHelper.dumpModelAsXml(context, def);
    // if resolving placeholders we parse the xml, and resolve the property placeholders during parsing
    if (resolvePlaceholders) {
        final AtomicBoolean changed = new AtomicBoolean();
        InputStream is = new ByteArrayInputStream(xml.getBytes());
        Document dom = XmlLineNumberParser.parseXml(is, new XmlLineNumberParser.XmlTextTransformer() {

            @Override
            public String transform(String text) {
                try {
                    String after = getContext().resolvePropertyPlaceholders(text);
                    if (!changed.get()) {
                        changed.set(!text.equals(after));
                    }
                    return after;
                } catch (Exception e) {
                    // ignore
                    return text;
                }
            }
        });
        // okay there were some property placeholder replaced so re-create the model
        if (changed.get()) {
            xml = context.getTypeConverter().mandatoryConvertTo(String.class, dom);
            RoutesDefinition copy = ModelHelper.createModelFromXml(context, xml, RoutesDefinition.class);
            xml = ModelHelper.dumpModelAsXml(context, copy);
        }
    }
    return xml;
}

Example 80 with InputStream

use of java.io.InputStream in project camel by apache.

the class ManagedCamelContext method addOrUpdateRoutesFromXml.

public void addOrUpdateRoutesFromXml(String xml, boolean urlDecode) throws Exception {
    // decode String as it may have been encoded, from its xml source
    if (urlDecode) {
        xml = URLDecoder.decode(xml, "UTF-8");
    }
    InputStream is = context.getTypeConverter().mandatoryConvertTo(InputStream.class, xml);
    RoutesDefinition def = context.loadRoutesDefinition(is);
    if (def == null) {
        return;
    }
    try {
        // add will remove existing route first
        context.addRouteDefinitions(def.getRoutes());
    } catch (Exception e) {
        // log the error as warn as the management api may be invoked remotely over JMX which does not propagate such exception
        String msg = "Error updating routes from xml: " + xml + " due: " + e.getMessage();
        LOG.warn(msg, e);
        throw e;
    }
}