Examples with Session org.sirix.api.Session used on opensource projects

Example 11 with Session

use of org.sirix.api.Session in project sirix by sirixdb.

the class BookShredding method shredder.

private static void shredder(final File pBooks) throws Exception {
    final DatabaseConfiguration config = new DatabaseConfiguration(TestHelper.PATHS.PATH1.getFile());
    Databases.truncateDatabase(config);
    Databases.createDatabase(config);
    final Database database = Databases.openDatabase(config.getFile());
    database.createResource(new ResourceConfiguration.Builder(TestHelper.RESOURCE, PATHS.PATH1.getConfig()).build());
    final Session session = database.getSession(new SessionConfiguration.Builder(TestHelper.RESOURCE).build());
    final NodeWriteTrx wtx = session.beginNodeWriteTrx();
    final XMLEventReader reader = XMLShredder.createFileReader(pBooks);
    final XMLShredder shredder = new XMLShredder.Builder(wtx, reader, Insert.ASFIRSTCHILD).commitAfterwards().build();
    shredder.call();
    wtx.close();
    session.close();
}

Example 12 with Session

use of org.sirix.api.Session in project sirix by sirixdb.

the class TestNodeWrapper method testCompareOrder.

@Test
public void testCompareOrder() throws XPathException, SirixException {
    final Processor proc = new Processor(false);
    final Configuration config = proc.getUnderlyingConfiguration();
    final Session session = generateSession();
    final NodeWriteTrx trx = session.beginNodeWriteTrx();
    trx.commit();
    trx.close();
    // Not the same document.
    NodeInfo node = new DocumentWrapper(session, config);
    NodeInfo other = new NodeWrapper(new DocumentWrapper(mHolder.getSession(), config), 3);
    try {
        node.compareOrder(other);
        fail();
    } catch (final IllegalStateException e) {
    }
    // Before.
    node = new DocumentWrapper(mHolder.getSession(), config);
    other = new NodeWrapper(new DocumentWrapper(mHolder.getSession(), config), 3);
    assertEquals(-1, node.compareOrder(other));
    // After.
    node = new NodeWrapper(new DocumentWrapper(mHolder.getSession(), config), 3);
    other = new NodeWrapper(new DocumentWrapper(mHolder.getSession(), config), 0);
    assertEquals(1, node.compareOrder(other));
    // Same.
    node = new NodeWrapper(new DocumentWrapper(mHolder.getSession(), config), 3);
    other = new NodeWrapper(new DocumentWrapper(mHolder.getSession(), config), 3);
    assertEquals(0, node.compareOrder(other));
    session.close();
    mDatabase.close();
}

Example 13 with Session

use of org.sirix.api.Session in project sirix by sirixdb.

the class RestXPathProcessor method doXPathRes.

/**
 * This method performs an XPath evaluation and writes it to a given output
 * stream.
 *
 * @param resource
 *          The existing resource.
 * @param revision
 *          The revision of the requested document.
 * @param output
 *          The output stream where the results are written.
 * @param nodeid
 *          <code>true</code> if node id's have to be delivered.
 *          <code>false</code> otherwise.
 * @param xpath
 *          The XPath expression.
 * @throws SirixException
 */
private void doXPathRes(final String resource, final Integer revision, final OutputStream output, final boolean nodeid, final String xpath) throws SirixException {
    // Database connection to sirix
    Database database = null;
    Session session = null;
    NodeReadTrx rtx = null;
    try {
        database = Databases.openDatabase(mStoragePath);
        session = database.getSession(new SessionConfiguration.Builder(resource).build());
        // Creating a transaction
        if (revision == null) {
            rtx = session.beginNodeReadTrx();
        } else {
            rtx = session.beginNodeReadTrx(revision);
        }
        final Axis axis = new XPathAxis(rtx, xpath);
        for (final long key : axis) {
            WorkerHelper.serializeXML(session, output, false, nodeid, key, revision).call();
        }
    } catch (final Exception globExcep) {
        throw new WebApplicationException(globExcep, Response.Status.INTERNAL_SERVER_ERROR);
    } finally {
        if (rtx != null) {
            rtx.moveTo(Fixed.DOCUMENT_NODE_KEY.getStandardProperty());
            WorkerHelper.closeRTX(rtx, session, database);
        }
    }
}

Example 14 with Session

use of org.sirix.api.Session in project sirix by sirixdb.

the class RestXPathProcessor method getXpathResource.

/**
 * Getting part of the XML based on a XPath query
 *
 * @param dbFile
 *          where the content should be extracted
 *
 * @param query
 *          contains XPath query
 * @param rId
 *          To response the resource with a restid for each node (
 *          <code>true</code>) or without ( <code>false</code>).
 * @param doRevision
 *          The revision of the requested resource. If <code>null</code>, than
 *          response the latest revision.
 * @param output
 *          The OutputStream reference which have to be modified and returned
 * @param doNodeId
 *          specifies whether node id should be shown
 * @param doWrap
 *          output of result elements
 * @throws SirixException
 */
public void getXpathResource(final File dbFile, final long rId, final String query, final boolean doNodeId, final Integer doRevision, final OutputStream output, final boolean doWrap) throws SirixException {
    // work around because of query root char '/'
    String qQuery = query;
    if (query.charAt(0) == '/')
        qQuery = ".".concat(query);
    Database database = null;
    Session session = null;
    NodeReadTrx rtx = null;
    try {
        database = Databases.openDatabase(dbFile.getParentFile());
        session = database.getSession(new SessionConfiguration.Builder(dbFile.getName()).build());
        if (doRevision == null) {
            rtx = session.beginNodeReadTrx();
        } else {
            rtx = session.beginNodeReadTrx(doRevision);
        }
        final boolean exist = rtx.moveTo(rId).hasMoved();
        if (exist) {
            final Axis axis = new XPathAxis(rtx, qQuery);
            if (doWrap) {
                output.write(beginResult.getBytes());
                for (final long key : axis) {
                    WorkerHelper.serializeXML(session, output, false, doNodeId, key, doRevision).call();
                }
                output.write(endResult.getBytes());
            } else {
                for (final long key : axis) {
                    WorkerHelper.serializeXML(session, output, false, doNodeId, key, doRevision).call();
                }
            }
        } else {
            throw new WebApplicationException(404);
        }
    } catch (final Exception globExcep) {
        throw new WebApplicationException(globExcep, Response.Status.INTERNAL_SERVER_ERROR);
    } finally {
        WorkerHelper.closeRTX(rtx, session, database);
    }
}

Example 15 with Session

use of org.sirix.api.Session in project sirix by sirixdb.

the class DatabaseRepresentation method revertToRevision.

/**
 * This method reverts the latest revision data to the requested.
 *
 * @param resourceName
 *          The name of the XML resource.
 * @param backToRevision
 *          The revision value, which has to be set as the latest.
 * @throws WebApplicationException
 * @throws SirixException
 */
public void revertToRevision(final String resourceName, final int backToRevision) throws JaxRxException, SirixException {
    Database database = null;
    Session session = null;
    NodeWriteTrx wtx = null;
    boolean abort = false;
    try {
        database = Databases.openDatabase(mStoragePath);
        session = database.getSession(new SessionConfiguration.Builder(resourceName).build());
        wtx = session.beginNodeWriteTrx();
        wtx.revertTo(backToRevision);
        wtx.commit();
    } catch (final SirixException exce) {
        abort = true;
        throw new JaxRxException(exce);
    } finally {
        WorkerHelper.closeWTX(abort, wtx, session, database);
    }
}