Examples of org.wso2.carbon.registry.core.jdbc.utils.VersionRetriever

Package org.wso2.carbon.registry.core.jdbc.utils

Examples of org.wso2.carbon.registry.core.jdbc.utils.VersionRetriever

org.wso2.eventing.SubscriptionManager
Once persisted the versions of a resource will be written as a byte stream and it is often not so useful to be accessed in such a format. This class is able to read through the stream and output a list of versions.
This class works hand in hand with the version input stream, where the version input stream persists data to the database, and the version retriever fetches persisted versions from the database. @see VersionInputStream

            }
        }
    }


    public ResourceImpl get(ResourceIDImpl resourceID, long snapshotID) throws RegistryException {
        VersionRetriever versionRetriever = getVersionList(snapshotID);
        ResourceDO resourceDO = null;
        int versionIndex = 0;
        while (true) {
            long version = versionRetriever.getVersion(versionIndex);
            if (version == -1) {
                // stream is over..
                break;
            }
            resourceDO = getResourceDOArchived(version);

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        return resourceImpl;
    }


    public boolean resourceExists(ResourceIDImpl resourceID, long snapshotID)
            throws RegistryException {
        VersionRetriever versionRetriever = getVersionList(snapshotID);
        if (versionRetriever == null) {
            return false;   
        }
        ResourceDO resourceDO = null;
        int versionIndex = 0;
        while (true) {
            long version = versionRetriever.getVersion(versionIndex);
            if (version == -1) {
                // stream is over..
                break;
            }
            resourceDO = getResourceDOArchived(version);

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    public VersionRetriever getVersionList(ResourceIDImpl resourceID, long snapshotID)
            throws RegistryException {
        Connection conn = JDBCDatabaseTransaction.getConnection();
        ResultSet result = null;
        PreparedStatement ps = null;
        VersionRetriever versionRetriever = null;
        try {
            if (resourceID.isCollection()) {
                String sql =
                        "SELECT REG_PATH_ID, REG_RESOURCE_VIDS FROM REG_SNAPSHOT " +
                                "WHERE REG_SNAPSHOT_ID=? AND REG_PATH_ID = ? " +
                                "AND REG_RESOURCE_NAME IS NULL AND REG_TENANT_ID=?";
                ps = conn.prepareStatement(sql);
                ps.setLong(1, snapshotID);
                ps.setInt(2, resourceID.getPathID());
                ps.setInt(3, CurrentSession.getTenantId());
            } else {
                String sql =
                        "SELECT REG_PATH_ID, REG_RESOURCE_VIDS FROM REG_SNAPSHOT " +
                                "WHERE REG_SNAPSHOT_ID=? AND REG_PATH_ID = ? " +
                                "AND REG_RESOURCE_NAME=? AND REG_TENANT_ID=?";
                ps = conn.prepareStatement(sql);
                ps.setLong(1, snapshotID);
                ps.setInt(2, resourceID.getPathID());
                ps.setString(3, resourceID.getName());
                ps.setInt(4, CurrentSession.getTenantId());
            }


            result = ps.executeQuery();


            if (result.next()) {
                InputStream resourceVIDStream = RegistryUtils.getMemoryStream(
                        result.getBinaryStream(DatabaseConstants.RESOURCE_VIDS_FIELD));
                versionRetriever = new VersionRetriever(resourceVIDStream);
            }
        } catch (Exception e) {


            String msg = "Failed to get version of resource " + resourceID.getPath() +
                    " of snapshot " + snapshotID + ". " + e.getMessage();

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    public VersionRetriever getVersionList(long snapshotID) throws RegistryException {
        Connection conn = JDBCDatabaseTransaction.getConnection();
        ResultSet result = null;
        PreparedStatement ps = null;
        VersionRetriever versionRetriever = null;
        try {
            String sql = "SELECT REG_PATH_ID, REG_RESOURCE_VIDS FROM REG_SNAPSHOT WHERE " +
                    "REG_SNAPSHOT_ID=? AND REG_TENANT_ID=?";
            ps = conn.prepareStatement(sql);
            ps.setLong(1, snapshotID);
            ps.setInt(2, CurrentSession.getTenantId());


            result = ps.executeQuery();


            if (result.next()) {
                InputStream resourceVIDStream = RegistryUtils.getMemoryStream(
                        result.getBinaryStream(DatabaseConstants.RESOURCE_VIDS_FIELD));
                versionRetriever = new VersionRetriever(resourceVIDStream);
            }
        } catch (Exception e) {


            String msg =
                    "Failed to get version of the snapshot " + snapshotID + ". " + e.getMessage();

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                    resourceID.getPath() + " is not a collection.";
            log.error(msg);
            throw new RegistryException(msg);
        }


        VersionRetriever versionRetriever = getVersionList(snapshotID);
        int versionIndex = 0;
        ResourceDO resourceDO = null;
        while (true) {
            long version = versionRetriever.getVersion(versionIndex);
            if (version == -1) {
                // no more stream
                break;
            }
            resourceDO = getResourceDOArchived(version);

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        }


        public void run() {
            try {
                MessageContext msgCtx = ((Axis2MessageContext) synCtx).getAxis2MessageContext();
                Event<MessageContext> event = new Event(msgCtx);
                subscriptions = subscriptionManager.getMatchingSubscriptions(event);
            } catch (EventException e) {
                handleException("Matching subscriptions fetching error", e);
            }

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     * @throws EventException event
     */
    private void processGetStatusRequest(MessageContext mc,
                                         ResponseMessageBuilder messageBuilder)
            throws AxisFault, EventException {
        Subscription subscription =
                SubscriptionMessageBuilder.createGetStatusMessage(mc);
        if (log.isDebugEnabled()) {
            log.debug("GetStatus request recived for SynapseSubscription ID : " +
                    subscription.getId());
        }
        subscription = subscriptionManager.getSubscription(subscription.getId());
        if (subscription != null) {
            if (log.isDebugEnabled()) {
                log.debug("Sending GetStatus responce for SynapseSubscription ID : " +
                        subscription.getId());
            }
            //send the responce
            SOAPEnvelope soapEnvelope = messageBuilder.genGetStatusResponse(subscription);
            dispatchResponse(soapEnvelope, EventingConstants.WSE_GET_STATUS_RESPONSE,
                    mc, false);

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            // Adding static subscriptions
            List<Subscription> staticSubscriptionList =
                    eventSource.getSubscriptionManager().getStaticSubscriptions();
            for (Iterator<Subscription> iterator = staticSubscriptionList.iterator();
                 iterator.hasNext();) {
                Subscription staticSubscription = iterator.next();
                OMElement staticSubElem =
                        fac.createOMElement("subscription", XMLConfigConstants.SYNAPSE_OMNAMESPACE);
                staticSubElem.addAttribute(
                        fac.createOMAttribute("id", nullNS, staticSubscription.getId()));
                OMElement filterElem =
                        fac.createOMElement("filter", XMLConfigConstants.SYNAPSE_OMNAMESPACE);
                filterElem.addAttribute(fac.createOMAttribute("source", nullNS,
                        (String) staticSubscription.getFilterValue()));
                filterElem.addAttribute(fac.createOMAttribute("dialect", nullNS,
                        (String) staticSubscription.getFilterDialect()));
                staticSubElem.addChild(filterElem);
                OMElement endpointElem =
                        fac.createOMElement("endpoint", XMLConfigConstants.SYNAPSE_OMNAMESPACE);
                OMElement addressElem =
                        fac.createOMElement("address", XMLConfigConstants.SYNAPSE_OMNAMESPACE);
                addressElem.addAttribute(
                        fac.createOMAttribute("uri", nullNS, staticSubscription.getEndpointUrl()));
                endpointElem.addChild(addressElem);
                staticSubElem.addChild(endpointElem);
                if (staticSubscription.getExpires() != null) {
                    OMElement expiresElem =
                            fac.createOMElement("expires", XMLConfigConstants.SYNAPSE_OMNAMESPACE);
                    fac.createOMText(expiresElem,
                            ConverterUtil.convertToString(staticSubscription.getExpires()));
                    staticSubElem.addChild(expiresElem);
                }
                evenSourceElem.addChild(staticSubElem);
            }

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    public SynapseSubscription() {
        this.setId(UIDGenerator.generateURNString());
        this.setDeliveryMode(EventingConstants.WSE_DEFAULT_DELIVERY_MODE);
        SubscriptionData subscriptionData = new SubscriptionData();
        subscriptionData.setProperty(SynapseEventingConstants.STATIC_ENTRY, "false");
        this.setSubscriptionData(subscriptionData);
    }

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                    .getAttribute(new QName(XMLConfigConstants.NULL_NAMESPACE, "class"));
            if (clazz != null) {
                String className = clazz.getAttributeValue();
                try {
                    Class subscriptionManagerClass = Class.forName(className);
                    SubscriptionManager manager =
                            (SubscriptionManager) subscriptionManagerClass.newInstance();
                    Iterator itr = subscriptionManagerElem.getChildrenWithName(PROPERTIES_QNAME);
                    while (itr.hasNext()) {
                        OMElement propElem = (OMElement) itr.next();
                        String propName =
                                propElem.getAttribute(new QName("name")).getAttributeValue();
                        String propValue =
                                propElem.getAttribute(new QName("value")).getAttributeValue();
                        if (propName != null && !"".equals(propName.trim()) &&
                                propValue != null && !"".equals(propValue.trim())) {


                            propName = propName.trim();
                            propValue = propValue.trim();


                            PasswordManager passwordManager =
                                    PasswordManager.getInstance();
                            String key = eventSource.getName() + "." + propName;


                            if (passwordManager.isInitialized()
                                    && passwordManager.isTokenProtected(key)) {
                                eventSource.putConfigurationProperty(propName, propValue);
                                propValue = passwordManager.resolve(propValue);
                            }


                            manager.addProperty(propName, propValue);
                        }
                    }
                    eventSource.setSubscriptionManager(manager);
                    eventSource.getSubscriptionManager()
                            .init(); // Initialise before doing further processing, required for static subscriptions

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