Examples with XmlReader tuwien.auto.calimero.xml.XmlReader used on opensource projects

Example 1 with XmlReader

use of tuwien.auto.calimero.xml.XmlReader in project openremote by openremote.

the class KNXProtocol method discoverLinkedAssetAttributes.

@Override
public Asset[] discoverLinkedAssetAttributes(AssetAttribute protocolConfiguration, FileInfo fileInfo) throws IllegalStateException {
    ZipInputStream zin = null;
    try {
        boolean fileFound = false;
        byte[] data = CodecUtil.decodeBase64(fileInfo.getContents());
        zin = new ZipInputStream(new ByteArrayInputStream(data));
        ZipEntry zipEntry = zin.getNextEntry();
        while (zipEntry != null) {
            if (zipEntry.getName().endsWith("/0.xml")) {
                fileFound = true;
                break;
            }
            zipEntry = zin.getNextEntry();
        }
        if (!fileFound) {
            String msg = "Failed to find '0.xml' in project file";
            LOG.info(msg);
            throw new IllegalStateException(msg);
        }
        // Create a transform factory instance.
        System.setProperty("javax.xml.transform.TransformerFactory", "net.sf.saxon.TransformerFactoryImpl");
        TransformerFactory tfactory = TransformerFactory.newInstance();
        // Create a transformer for the stylesheet.
        Transformer transformer = tfactory.newTransformer(new StreamSource(this.getClass().getResourceAsStream("/org/openremote/agent/protocol/knx/ets_calimero_group_name.xsl")));
        // Set the URIResolver
        transformer.setURIResolver(new EtsFileUriResolver(data));
        // Transform the source XML into byte array
        ByteArrayOutputStream bos = new ByteArrayOutputStream();
        transformer.transform(new StreamSource(zin), new StreamResult(bos));
        byte[] result = bos.toByteArray();
        // we use a map of state-based datapoints and read from the transformed xml
        final DatapointMap<StateDP> datapoints = new DatapointMap<>();
        try (final XmlReader r = XmlInputFactory.newInstance().createXMLStreamReader(new ByteArrayInputStream(result))) {
            datapoints.load(r);
        } catch (final KNXMLException e) {
            String msg = "Error loading parsed ETS file: " + e.getMessage();
            LOG.warning(msg);
            throw new IllegalStateException(msg, e);
        }
        MetaItem agentLink = AgentLink.asAgentLinkMetaItem(protocolConfiguration.getReferenceOrThrow());
        Map<String, Asset> createdAssets = new HashMap<>();
        for (StateDP dp : datapoints.getDatapoints()) {
            if (dp.getName().endsWith("#A")) {
                createAsset(dp, false, agentLink, createdAssets);
            } else if (dp.getName().endsWith("#S")) {
                createAsset(dp, true, agentLink, createdAssets);
            } else if (dp.getName().endsWith("#SA") || dp.getName().endsWith("#AS")) {
                createAsset(dp, false, agentLink, createdAssets);
                createAsset(dp, true, agentLink, createdAssets);
            } else {
                LOG.info("Only group addresses ending on #A, #S, #AS or #SA will be imported. Ignoring: " + dp.getName());
            }
        }
        return createdAssets.values().toArray(new Asset[createdAssets.values().size()]);
    } catch (Exception e) {
        throw new IllegalStateException("ETS import error", e);
    } finally {
        if (zin != null) {
            try {
                zin.close();
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
    }
}

Example 2 with XmlReader

use of tuwien.auto.calimero.xml.XmlReader in project openremote by openremote.

the class KNXProtocol method startAssetImport.

@Override
public Future<Void> startAssetImport(byte[] fileData, Consumer<AssetTreeNode[]> assetConsumer) {
    return executorService.submit(() -> {
        ZipInputStream zin = null;
        try {
            boolean fileFound = false;
            zin = new ZipInputStream(new ByteArrayInputStream(fileData));
            ZipEntry zipEntry = zin.getNextEntry();
            while (zipEntry != null) {
                if (zipEntry.getName().endsWith("/0.xml")) {
                    fileFound = true;
                    break;
                }
                zipEntry = zin.getNextEntry();
            }
            if (!fileFound) {
                String msg = "Failed to find '0.xml' in project file";
                LOG.info(msg);
                throw new IllegalStateException(msg);
            }
            // Create a transform factory instance.
            TransformerFactory tfactory = new net.sf.saxon.TransformerFactoryImpl();
            // Create a transformer for the stylesheet.
            InputStream inputStream = KNXProtocol.class.getResourceAsStream("/org/openremote/agent/protocol/knx/ets_calimero_group_name.xsl");
            String xsd = IOUtils.toString(inputStream, StandardCharsets.UTF_8);
            // Get weird behaviour sometimes without this
            xsd = xsd.trim().replaceFirst("^([\\W]+)<", "<");
            LOG.warning(xsd);
            Transformer transformer = tfactory.newTransformer(new StreamSource(new StringReader(xsd)));
            // Set the URIResolver
            transformer.setURIResolver(new ETSFileURIResolver(fileData));
            // Transform the source XML
            String xml = IOUtils.toString(zin, StandardCharsets.UTF_8);
            // Get weird behaviour sometimes without this
            xml = xml.trim().replaceFirst("^([\\W]+)<", "<");
            LOG.warning(xml);
            StringWriter writer = new StringWriter();
            StringReader reader = new StringReader(xml);
            transformer.transform(new StreamSource(reader), new StreamResult(writer));
            xml = writer.toString();
            // we use a map of state-based data points and read from the transformed xml
            final DatapointMap<StateDP> datapoints = new DatapointMap<>();
            try (final XmlReader r = XmlInputFactory.newInstance().createXMLStreamReader(new StringReader(xml))) {
                datapoints.load(r);
            } catch (final KNXMLException e) {
                String msg = "Error loading parsed ETS file: " + e.getMessage();
                LOG.warning(msg);
                throw new IllegalStateException(msg, e);
            }
            Map<String, Asset<?>> createdAssets = new HashMap<>();
            for (StateDP dp : datapoints.getDatapoints()) {
                if (dp.getName().endsWith("#A")) {
                    createAsset(dp, false, createdAssets);
                } else if (dp.getName().endsWith("#S")) {
                    createAsset(dp, true, createdAssets);
                } else if (dp.getName().endsWith("#SA") || dp.getName().endsWith("#AS")) {
                    createAsset(dp, false, createdAssets);
                    createAsset(dp, true, createdAssets);
                } else {
                    LOG.info("Only group addresses ending on #A, #S, #AS or #SA will be imported. Ignoring: " + dp.getName());
                }
            }
            assetConsumer.accept(createdAssets.values().stream().map(AssetTreeNode::new).toArray(AssetTreeNode[]::new));
        } catch (Exception e) {
            LOG.log(Level.WARNING, "ETS import error", e);
        } finally {
            if (zin != null) {
                try {
                    zin.close();
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
        }
    }, null);
}