Examples with Serializer org.exist.storage.serializers.Serializer used on opensource projects

Example 16 with Serializer

use of org.exist.storage.serializers.Serializer in project exist by eXist-db.

the class Sync method processRepoDesc.

/**
 * Merge repo.xml modified by user with original file. This is necessary because we have to
 * remove sensitive information during upload (default password) and need to restore it
 * when the package is synchronized back to disk.
 */
private void processRepoDesc(final Path targetFile, final DocumentImpl doc, final SAXSerializer sax, final MemTreeBuilder output) {
    try {
        final DocumentBuilder builder = DocumentBuilderFactory.newInstance().newDocumentBuilder();
        final Document original = builder.parse(targetFile.toFile());
        final Serializer serializer = context.getBroker().borrowSerializer();
        try (final Writer writer = new OutputStreamWriter(new BufferedOutputStream(Files.newOutputStream(targetFile)), StandardCharsets.UTF_8)) {
            sax.setOutput(writer, DEFAULT_PROPERTIES);
            final StreamSource styleSource = new StreamSource(Sync.class.getResourceAsStream("repo.xsl"));
            final SAXTransformerFactory factory = TransformerFactoryAllocator.getTransformerFactory(context.getBroker().getBrokerPool());
            final TransformerHandler handler = factory.newTransformerHandler(styleSource);
            handler.getTransformer().setParameter("original", original.getDocumentElement());
            handler.setResult(new SAXResult(sax));
            serializer.reset();
            serializer.setProperties(DEFAULT_PROPERTIES);
            serializer.setSAXHandlers(handler, handler);
            serializer.toSAX(doc);
        } finally {
            context.getBroker().returnSerializer(serializer);
        }
    } catch (final ParserConfigurationException e) {
        reportError(output, "Parser exception while saving file " + targetFile.toAbsolutePath().toString() + ": " + e.getMessage());
    } catch (final SAXException e) {
        reportError(output, "SAX exception while saving file " + targetFile.toAbsolutePath().toString() + ": " + e.getMessage());
    } catch (final IOException e) {
        reportError(output, "IO exception while saving file " + targetFile.toAbsolutePath().toString() + ": " + e.getMessage());
    } catch (final TransformerException e) {
        reportError(output, "Transformation exception while saving file " + targetFile.toAbsolutePath().toString() + ": " + e.getMessage());
    }
}

Example 17 with Serializer

use of org.exist.storage.serializers.Serializer in project exist by eXist-db.

the class Sync method saveXML.

private void saveXML(final Path targetFile, final DocumentImpl doc, final MemTreeBuilder output) throws IOException {
    final SAXSerializer sax = (SAXSerializer) SerializerPool.getInstance().borrowObject(SAXSerializer.class);
    try {
        final boolean isRepoXML = Files.exists(targetFile) && FileUtils.fileName(targetFile).equals("repo.xml");
        if (isRepoXML) {
            processRepoDesc(targetFile, doc, sax, output);
        } else {
            final Serializer serializer = context.getBroker().borrowSerializer();
            try (final Writer writer = new OutputStreamWriter(new BufferedOutputStream(Files.newOutputStream(targetFile)), StandardCharsets.UTF_8)) {
                sax.setOutput(writer, DEFAULT_PROPERTIES);
                serializer.setProperties(DEFAULT_PROPERTIES);
                serializer.setSAXHandlers(sax, sax);
                serializer.toSAX(doc);
            } finally {
                context.getBroker().returnSerializer(serializer);
            }
        }
    } catch (final SAXException e) {
        reportError(output, "SAX exception while saving file " + targetFile.toAbsolutePath().toString() + ": " + e.getMessage());
    } finally {
        SerializerPool.getInstance().returnObject(sax);
    }
}

Example 18 with Serializer

use of org.exist.storage.serializers.Serializer in project exist by eXist-db.

the class SerializeToFile method serializeXML.

private void serializeXML(final SequenceIterator siNode, final Properties outputProperties, final Path file, final boolean doAppend) throws XPathException {
    final Serializer serializer = context.getBroker().borrowSerializer();
    StandardOpenOption[] ops = doAppend ? new StandardOpenOption[] { StandardOpenOption.WRITE, StandardOpenOption.CREATE, StandardOpenOption.APPEND } : new StandardOpenOption[] { StandardOpenOption.WRITE, StandardOpenOption.CREATE, StandardOpenOption.TRUNCATE_EXISTING };
    try (final OutputStream os = new BufferedOutputStream(Files.newOutputStream(file, ops));
        final Writer writer = new OutputStreamWriter(os, Charset.forName(outputProperties.getProperty(OutputKeys.ENCODING)))) {
        serializer.setProperties(outputProperties);
        while (siNode.hasNext()) {
            final NodeValue nv = (NodeValue) siNode.nextItem();
            serializer.serialize(nv, writer);
        }
    } catch (UnsupportedOperationException | IllegalArgumentException e) {
        throw new XPathException(this, "Error wile writing to file: " + e.getMessage(), e);
    } catch (final IOException | SAXException e) {
        throw new XPathException(this, "Cannot serialize file. A problem occurred while serializing the node set: " + e.getMessage(), e);
    } finally {
        context.getBroker().returnSerializer(serializer);
    }
}

Example 19 with Serializer

use of org.exist.storage.serializers.Serializer in project exist by eXist-db.

the class EXIUtils method getInputStream.

protected static InputStream getInputStream(Item item, XQueryContext context) throws XPathException, MalformedURLException, IOException {
    switch(item.getType()) {
        case Type.ANY_URI:
            LOG.debug("Streaming xs:anyURI");
            // anyURI provided
            String url = item.getStringValue();
            // Fix URL
            if (url.startsWith("/")) {
                url = "xmldb:exist://" + url;
            }
            return new URL(url).openStream();
        case Type.ELEMENT:
        case Type.DOCUMENT:
            LOG.debug("Streaming element or document node");
            /*
            if (item instanceof NodeProxy) {
                NodeProxy np = (NodeProxy) item;
                String url = "xmldb:exist://" + np.getDocument().getBaseURI();
                LOG.debug("Document detected, adding URL " + url);
                streamSource.setSystemId(url);
            }
            */
            // Node provided
            final ConsumerE<ConsumerE<Serializer, IOException>, IOException> withSerializerFn = fn -> {
                final Serializer serializer = context.getBroker().borrowSerializer();
                try {
                    fn.accept(serializer);
                } finally {
                    context.getBroker().returnSerializer(serializer);
                }
            };
            NodeValue node = (NodeValue) item;
            return new NodeInputStream(context.getBroker().getBrokerPool(), withSerializerFn, node);
        default:
            LOG.error("Wrong item type {}", Type.getTypeName(item.getType()));
            throw new XPathException("wrong item type " + Type.getTypeName(item.getType()));
    }
}

Example 20 with Serializer

use of org.exist.storage.serializers.Serializer in project exist by eXist-db.

the class AbstractCompressFunction method compressElement.

/**
 * Adds a element to a archive
 *
 * @param os
 *            The Output Stream to add the element to
 * @param element
 *            The element to add to the archive
 * @param useHierarchy
 *            Whether to use a folder hierarchy in the archive file that
 *            reflects the collection hierarchy
 */
private void compressElement(final OutputStream os, final Element element, final boolean useHierarchy, final String stripOffset) throws XPathException {
    final String ns = element.getNamespaceURI();
    if (!(element.getNodeName().equals("entry") || (ns != null && !ns.isEmpty()))) {
        throw new XPathException(this, "Item must be type of xs:anyURI or element entry.");
    }
    if (element.getChildNodes().getLength() > 1) {
        throw new XPathException(this, "Entry content is not valid XML fragment.");
    }
    String name = element.getAttribute("name");
    // if(name == null)
    // throw new XPathException(this, "Entry must have name attribute.");
    final String type = element.getAttribute("type");
    if ("uri".equals(type)) {
        compressFromUri(os, URI.create(element.getFirstChild().getNodeValue()), useHierarchy, stripOffset, element.getAttribute("method"), name);
        return;
    }
    if (useHierarchy) {
        name = removeLeadingOffset(name, stripOffset);
    } else {
        name = name.substring(name.lastIndexOf("/") + 1);
    }
    if ("collection".equals(type)) {
        name += "/";
    }
    Object entry = null;
    try {
        entry = newEntry(name);
        if (!"collection".equals(type)) {
            byte[] value;
            final CRC32 chksum = new CRC32();
            final Node content = element.getFirstChild();
            if (content == null) {
                value = new byte[0];
            } else {
                if (content.getNodeType() == Node.TEXT_NODE) {
                    String text = content.getNodeValue();
                    if ("binary".equals(type)) {
                        // base64 binary
                        value = Base64.decodeBase64(text);
                    } else {
                        // text
                        value = text.getBytes();
                    }
                } else {
                    // xml
                    final Serializer serializer = context.getBroker().borrowSerializer();
                    try {
                        serializer.setUser(context.getSubject());
                        serializer.setProperty("omit-xml-declaration", "no");
                        getDynamicSerializerOptions(serializer);
                        value = serializer.serialize((NodeValue) content).getBytes();
                    } finally {
                        context.getBroker().returnSerializer(serializer);
                    }
                }
            }
            if (entry instanceof ZipEntry && "store".equals(element.getAttribute("method"))) {
                ((ZipEntry) entry).setMethod(ZipOutputStream.STORED);
                chksum.update(value);
                ((ZipEntry) entry).setCrc(chksum.getValue());
                ((ZipEntry) entry).setSize(value.length);
            }
            putEntry(os, entry);
            os.write(value);
        }
    } catch (final IOException | SAXException ioe) {
        throw new XPathException(this, ioe.getMessage(), ioe);
    } finally {
        if (entry != null) {
            try {
                closeEntry(os);
            } catch (final IOException ioe) {
                throw new XPathException(this, ioe.getMessage(), ioe);
            }
        }
    }
}