Examples with DynamicLoadbalanceEndpoint org.apache.synapse.endpoints.DynamicLoadbalanceEndpoint used on opensource projects

Example 1 with DynamicLoadbalanceEndpoint

use of org.apache.synapse.endpoints.DynamicLoadbalanceEndpoint in project wso2-synapse by wso2.

the class DynamicLoadBalanceEndpointFactoryTest method test.

/**
 * Testing whether synapse exception is thrown when the membership handler cannot be found.
 * The given membership handler is a false one.
 * @throws Exception
 */
@Test(expected = SynapseException.class)
public void test() throws Exception {
    String inputXml = "<endpoint  xmlns=\"http://ws.apache.org/ns/synapse\">" + "<dynamicLoadbalance policy=\"roundRobin\" failover=\"true\">" + "    <membershipHandler class=\"org.apache.synapse.core.LoadBalanceMembershipHandler\">" + "      <property name=\"name\" value=\"value\"/>" + "    </membershipHandler>" + "  </dynamicLoadbalance>" + "</endpoint>";
    OMElement inputElement = AXIOMUtil.stringToOM(inputXml);
    DynamicLoadbalanceEndpoint endpoint = (DynamicLoadbalanceEndpoint) DynamicLoadbalanceEndpointFactory.getEndpointFromElement(inputElement, true, null);
}

Example 2 with DynamicLoadbalanceEndpoint

use of org.apache.synapse.endpoints.DynamicLoadbalanceEndpoint in project wso2-synapse by wso2.

the class DynamicLoadbalanceEndpointFactory method createEndpoint.

protected Endpoint createEndpoint(OMElement epConfig, boolean anonymousEndpoint, Properties properties) {
    OMElement loadbalanceElement = epConfig.getFirstChildWithName(new QName(SynapseConstants.SYNAPSE_NAMESPACE, "dynamicLoadbalance"));
    if (loadbalanceElement != null) {
        DynamicLoadbalanceEndpoint loadbalanceEndpoint = new DynamicLoadbalanceEndpoint();
        // set endpoint name
        OMAttribute name = epConfig.getAttribute(new QName(XMLConfigConstants.NULL_NAMESPACE, "name"));
        if (name != null) {
            loadbalanceEndpoint.setName(name.getAttributeValue());
        }
        // get the session for this endpoint
        OMElement sessionElement = epConfig.getFirstChildWithName(new QName(SynapseConstants.SYNAPSE_NAMESPACE, "session"));
        if (sessionElement != null) {
            OMElement sessionTimeout = sessionElement.getFirstChildWithName(new QName(SynapseConstants.SYNAPSE_NAMESPACE, "sessionTimeout"));
            if (sessionTimeout != null) {
                try {
                    loadbalanceEndpoint.setSessionTimeout(Long.parseLong(sessionTimeout.getText().trim()));
                } catch (NumberFormatException nfe) {
                    handleException("Invalid session timeout value : " + sessionTimeout.getText());
                }
            }
            String type = sessionElement.getAttributeValue(new QName("type"));
            if (type.equalsIgnoreCase("soap")) {
                Dispatcher soapDispatcher = new SoapSessionDispatcher();
                loadbalanceEndpoint.setDispatcher(soapDispatcher);
            } else if (type.equalsIgnoreCase("http")) {
                Dispatcher httpDispatcher = new HttpSessionDispatcher();
                loadbalanceEndpoint.setDispatcher(httpDispatcher);
            }
            loadbalanceEndpoint.setSessionAffinity(true);
        }
        // set if failover is turned off
        String failover = loadbalanceElement.getAttributeValue(new QName("failover"));
        if (failover != null && failover.equalsIgnoreCase("false")) {
            loadbalanceEndpoint.setFailover(false);
        } else {
            loadbalanceEndpoint.setFailover(true);
        }
        OMElement eventHandler = loadbalanceElement.getFirstChildWithName(new QName(SynapseConstants.SYNAPSE_NAMESPACE, "membershipHandler"));
        if (eventHandler != null) {
            String clazz = eventHandler.getAttributeValue(new QName(XMLConfigConstants.NULL_NAMESPACE, "class")).trim();
            try {
                LoadBalanceMembershipHandler lbMembershipHandler = (LoadBalanceMembershipHandler) Class.forName(clazz).newInstance();
                Properties lbProperties = new Properties();
                for (Iterator props = eventHandler.getChildrenWithName(new QName(SynapseConstants.SYNAPSE_NAMESPACE, "property")); props.hasNext(); ) {
                    OMElement prop = (OMElement) props.next();
                    String propName = prop.getAttributeValue(new QName(XMLConfigConstants.NULL_NAMESPACE, "name")).trim();
                    String propValue = prop.getAttributeValue(new QName(XMLConfigConstants.NULL_NAMESPACE, "value")).trim();
                    lbProperties.put(propName, propValue);
                }
                // Set load balance algorithm
                LoadbalanceAlgorithm algorithm = LoadbalanceAlgorithmFactory.createLoadbalanceAlgorithm(loadbalanceElement, null);
                lbMembershipHandler.init(lbProperties, algorithm);
                loadbalanceEndpoint.setLoadBalanceMembershipHandler(lbMembershipHandler);
            } catch (Exception e) {
                String msg = "Could not instantiate " + "LoadBalanceMembershipHandler implementation " + clazz;
                log.error(msg, e);
                throw new SynapseException(msg, e);
            }
        }
        processProperties(loadbalanceEndpoint, epConfig);
        return loadbalanceEndpoint;
    }
    return null;
}

Example 3 with DynamicLoadbalanceEndpoint

use of org.apache.synapse.endpoints.DynamicLoadbalanceEndpoint in project wso2-synapse by wso2.

the class DynamicLoadbalanceEndpointSerializer method serializeEndpoint.

protected OMElement serializeEndpoint(Endpoint endpoint) {
    if (!(endpoint instanceof DynamicLoadbalanceEndpoint)) {
        handleException("Invalid endpoint type.");
    }
    fac = OMAbstractFactory.getOMFactory();
    OMElement endpointElement = fac.createOMElement("endpoint", SynapseConstants.SYNAPSE_OMNAMESPACE);
    DynamicLoadbalanceEndpoint dynamicLoadbalanceEndpoint = (DynamicLoadbalanceEndpoint) endpoint;
    // serialize the parameters
    serializeProperties(dynamicLoadbalanceEndpoint, endpointElement);
    serializeCommonAttributes(endpoint, endpointElement);
    Dispatcher dispatcher = dynamicLoadbalanceEndpoint.getDispatcher();
    if (dispatcher != null) {
        OMElement sessionElement = fac.createOMElement("session", SynapseConstants.SYNAPSE_OMNAMESPACE);
        if (dispatcher instanceof SoapSessionDispatcher) {
            sessionElement.addAttribute("type", "soap", null);
        } else if (dispatcher instanceof HttpSessionDispatcher) {
            sessionElement.addAttribute("type", "http", null);
        } else if (dispatcher instanceof SimpleClientSessionDispatcher) {
            sessionElement.addAttribute("type", "simpleClientSession", null);
        } else {
            handleException("invalid session dispatcher : " + dispatcher.getClass().getName());
        }
        long sessionTimeout = dynamicLoadbalanceEndpoint.getSessionTimeout();
        if (sessionTimeout != -1) {
            OMElement sessionTimeoutElement = fac.createOMElement("sessionTimeout", SynapseConstants.SYNAPSE_OMNAMESPACE);
            sessionTimeoutElement.setText(String.valueOf(sessionTimeout));
            sessionElement.addChild(sessionTimeoutElement);
        }
        endpointElement.addChild(sessionElement);
    }
    OMElement dynamicLoadbalanceElement = fac.createOMElement("dynamicLoadbalance", SynapseConstants.SYNAPSE_OMNAMESPACE);
    endpointElement.addChild(dynamicLoadbalanceElement);
    // set if failover is turned off in the endpoint
    if (!dynamicLoadbalanceEndpoint.isFailover()) {
        dynamicLoadbalanceElement.addAttribute("failover", "false", null);
    }
    LoadBalanceMembershipHandler loadBalanceMembershipHandler = dynamicLoadbalanceEndpoint.getLbMembershipHandler();
    dynamicLoadbalanceElement.addAttribute(XMLConfigConstants.LOADBALANCE_ALGORITHM, loadBalanceMembershipHandler.getLoadbalanceAlgorithm().getClass().getName(), null);
    OMElement membershipHandlerElement = fac.createOMElement("membershipHandler", SynapseConstants.SYNAPSE_OMNAMESPACE);
    dynamicLoadbalanceElement.addChild(membershipHandlerElement);
    membershipHandlerElement.addAttribute("class", loadBalanceMembershipHandler.getClass().getName(), null);
    Properties membershipHandlerProperties = loadBalanceMembershipHandler.getProperties();
    OMElement propertyElement;
    for (Object property : membershipHandlerProperties.keySet()) {
        propertyElement = fac.createOMElement("property", SynapseConstants.SYNAPSE_OMNAMESPACE);
        membershipHandlerElement.addChild(propertyElement);
        propertyElement.addAttribute("name", property.toString(), null);
        propertyElement.addAttribute("value", membershipHandlerProperties.getProperty((String) property), null);
    }
    return endpointElement;
}