Package org.wso2.event

Examples of org.wso2.event.EventBrokerService

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    }

    public byte[] getProcessImage(String processId) {

        QName qName = decode(processId);
        SVGInterface svg = createSVG(qName);
        return svg.toPNGBytes();
    }
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    private SVGInterface createSVG(QName qName) {

        // generate new
        InputStream in = getBpelDescriptor(qName);

        SVGInterface svg = null;

        try {
            svg = BPEL2SVGUtil.generate(in);

            if (svg == null)
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    protected static SVGImpl generateSVGImpl(java.io.InputStream is) throws java.io.IOException {
      byte[] b=new byte[is.available()];
      is.read(b);
   
      BPELInterface bpel = new BPELImpl();
        OMElement bpelStr = bpel.load(new String(b));
       
        bpel.processBpelString(bpelStr);

        LayoutManager layoutManager = BPEL2SVGFactory.getInstance().getLayoutManager();
        layoutManager.setVerticalLayout(true);
        layoutManager.setYSpacing(20);
        layoutManager.setYSpacing(50);
        layoutManager.layoutSVG(bpel.getRootActivity());

        SVGImpl svg = new SVGImpl();
        svg.setRootActivity(bpel.getRootActivity());
       
        return(svg);
    }
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   * @param transformer The optional image transformer
   * @throws java.io.IOException Failed to generate the representation
   */
    public static void generate(java.io.InputStream is, java.io.OutputStream os,
                SVGImageTransformer transformer) throws java.io.IOException {
        SVGImpl svg = generateSVGImpl(is);
       
        if (transformer == null) {
          String str=svg.getHeaders()+svg.generateSVGString();
          os.write(str.getBytes());
        } else {
          transformer.transform(svg, os);
        }
    }
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        layoutManager.setVerticalLayout(true);
        layoutManager.setYSpacing(20);
        layoutManager.setYSpacing(50);
        layoutManager.layoutSVG(bpel.getRootActivity());

        SVGImpl svg = new SVGImpl();
        svg.setRootActivity(bpel.getRootActivity());
       
        return(svg);
    }
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    public String defineSecureTopic(String topicName, String[] accessibleUsers,
            String[] acessibleRoles) throws AxisFault {
        try {
            EventBrokerService broker = CarbonEventBroker.getInstance();
            broker.getSubscriptionManager().defineSecureTopic(topicName);
           
//            //TODO extend the message receiver abstract Admin
//            UserRegistry systemRegistry = EventBrokerServiceComponent.getConfigurationRegistry();
//            //make sure storage location is available
//            if(!systemRegistry.resourceExists(SECURE_TOPIC_STORAGE)){
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        }
    }
   
    public String deleteSecureTopic(String topicName) throws AxisFault{
        try {
            EventBrokerService broker = CarbonEventBroker.getInstance();
            broker.getSubscriptionManager().deleteSecureTopic(topicName);
           
//            UserRegistry systemRegistry = EventBrokerServiceComponent.getConfigurationRegistry();
//           
            UserRealm userRealm = AdminServicesUtil.getUserRealm();
            AuthorizationManager authorizationManager = userRealm.getAuthorizationManager();
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//            String topicPath = getSecureTopicRegistryPath(topicName);
//            if(!systemRegistry.resourceExists(topicPath)){
//                throw new AxisFault("Permission denied " +getLoggedInUserName() + " cannot access "+ topicName);
//            }
//            Resource resource = systemRegistry.get(topicPath);
            EventBrokerService broker = CarbonEventBroker.getInstance();
            TopicDetails topicDetails = broker.getSubscriptionManager().getTopicDetails(topicName);
            String owner = topicDetails.getOwner();
            if(!owner.equals(getLoggedInUserName())){
                throw new AxisFault("Permission denied " +getLoggedInUserName() + " cannot access "+ topicName);
            }
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    }

    public String revokeATopic(String topicName, String[] accessibleUsers, String[] acessibleRoles) throws AxisFault {
        try {
            EventBrokerService broker = CarbonEventBroker.getInstance();
            TopicDetails topicDetails = broker.getSubscriptionManager().getTopicDetails(topicName);
            String owner = topicDetails.getOwner();

            if(!owner.equals(getLoggedInUserName())){
                throw new AxisFault("Permission denied " +getLoggedInUserName() + " cannot access "+ topicName);
            }
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    /** Helper methods
     * @throws AxisFault **/
   
    public TopicNode getAllTopics() throws AxisFault{
        try {
            EventBrokerService broker = CarbonEventBroker.getInstance();
            return broker.getSubscriptionManager().getTopicTree();
        } catch (EventException e) {
            throw AxisFault.makeFault(e);
        }
    }
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