ConnectorService.java

/*
*  Copyright (c) 2005-2010, WSO2 Inc. (http://www.wso2.org) All Rights Reserved.
*
*  WSO2 Inc. licenses this file to you under the Apache License,
*  Version 2.0 (the "License"); you may not use this file except
*  in compliance with the License.
*  You may obtain a copy of the License at
*
*    http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied.  See the License for the
* specific language governing permissions and limitations
* under the License.
*/
package org.wso2.carbon.connector.core.services;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.osgi.service.component.ComponentContext;
import org.wso2.carbon.connector.core.util.ConfigHolder;
import org.wso2.carbon.mediation.initializer.services.SynapseConfigurationService;
import org.wso2.carbon.mediation.initializer.services.SynapseEnvironmentService;
import org.wso2.carbon.registry.core.exceptions.RegistryException;
import org.wso2.carbon.registry.core.service.RegistryService;
import org.wso2.carbon.user.core.service.RealmService;
import org.wso2.carbon.utils.ConfigurationContextService;

/**
 * @scr.component name="org.wso2.carbon.connector.api" immediate="true"
 * @scr.reference name="configuration.context.service"
 * interface="org.wso2.carbon.utils.ConfigurationContextService" cardinality="1..1"
 * policy="dynamic" bind="setConfigurationContextService" unbind="unsetConfigurationContextService"
 * @scr.reference name="synapse.config.service"
 * interface="org.wso2.carbon.mediation.initializer.services.SynapseConfigurationService"
 * cardinality="1..1" policy="dynamic" bind="setSynapseConfigurationService"
 * unbind="unsetSynapseConfigurationService"
 * @scr.reference name="synapse.env.service"
 * interface="org.wso2.carbon.mediation.initializer.services.SynapseEnvironmentService"
 * cardinality="1..n" policy="dynamic" bind="setSynapseEnvironmentService"
 * unbind="unsetSynapseEnvironmentService"
 * @scr.reference name="registry.service"
 * interface="org.wso2.carbon.registry.core.service.RegistryService"
 * cardinality="1..1" policy="dynamic"
 * bind="setRegistryService" unbind="unsetRegistryService"
 * @scr.reference name="user.realmservice.default"
 * interface="org.wso2.carbon.user.core.service.RealmService" cardinality="1..1"
 * policy="dynamic" bind="setRealmService" unbind="unsetRealmService"
 */

public class ConnectorService {
    private static final Log log = LogFactory.getLog(ConnectorService.class);

    private boolean activated = false;

    protected void activate(ComponentContext ctxt) {
        try {
            if (log.isDebugEnabled()) {
                log.debug("Connector Core bundle is activated ");
            }
            activated = true;
        } catch (Throwable e) {
            log.error("Failed to activate connectors core bundle ", e);
        }
    }

    protected void deactivate(ComponentContext context) {
    }

    protected void setConfigurationContextService(ConfigurationContextService cfgCtxService) {
        ConfigHolder.getInstance().setAxisConfiguration(
                cfgCtxService.getServerConfigContext().getAxisConfiguration());
    }

    protected void unsetConfigurationContextService(ConfigurationContextService cfgCtxService) {
        ConfigHolder.getInstance().setAxisConfiguration(null);
    }

    protected void setSynapseConfigurationService(
            SynapseConfigurationService synapseConfigurationService) {

        ConfigHolder.getInstance().setSynapseConfiguration(
                synapseConfigurationService.getSynapseConfiguration());
    }

    protected void unsetSynapseConfigurationService(
            SynapseConfigurationService synapseConfigurationService) {

        ConfigHolder.getInstance().setSynapseConfiguration(null);
    }

    /**
     * Here we receive an event about the creation of a SynapseEnvironment. If this is
     * SuperTenant we have to wait until all the other constraints are met and actual
     * initialization is done in the activate method. Otherwise we have to do the activation here.
     *
     * @param synapseEnvironmentService SynapseEnvironmentService which contains information
     *                                  about the new Synapse Instance
     */
    protected void setSynapseEnvironmentService(
            SynapseEnvironmentService synapseEnvironmentService) {
        boolean alreadyCreated = ConfigHolder.getInstance().getSynapseEnvironmentServices().
                containsKey(synapseEnvironmentService.getTenantId());

        ConfigHolder.getInstance().addSynapseEnvironmentService(
                synapseEnvironmentService.getTenantId(),
                synapseEnvironmentService);
    }

    /**
     * Here we receive an event about Destroying a SynapseEnvironment. This can be the super tenant
     * destruction or a tenant destruction.
     *
     * @param synapseEnvironmentService synapseEnvironment
     */
    protected void unsetSynapseEnvironmentService(
            SynapseEnvironmentService synapseEnvironmentService) {
        ConfigHolder.getInstance().removeSynapseEnvironmentService(
                synapseEnvironmentService.getTenantId());
    }

    protected void setRegistryService(RegistryService regService) {
        if (log.isDebugEnabled()) {
            log.debug("RegistryService bound to the connectors core component");
        }
        try {
            ConfigHolder.getInstance().setRegistryService(regService);
            ConfigHolder.getInstance().setConfigRegistry(regService.getConfigSystemRegistry());
            ConfigHolder.getInstance().setGovernanceRegistry(regService.getGovernanceSystemRegistry());
        } catch (RegistryException e) {
            log.error("Couldn't retrieve the registry from the registry service");
        }
    }

    protected void unsetRegistryService(RegistryService regService) {
        if (log.isDebugEnabled()) {
            log.debug("RegistryService unbound from the connectors core component");
        }
        ConfigHolder.getInstance().setConfigRegistry(null);
        ConfigHolder.getInstance().setRegistryService(null);
    }

    /**
     * @param realmservice
     */
    public void setRealmService(RealmService realmservice) {
        ConfigHolder.getInstance().setRealmservice(realmservice);
    }

    public void unsetRealmService(RealmService realmservice) {
        ConfigHolder.getInstance().setRealmservice(null);
    }


}