Package org.wso2.carbon.cloud.csg.service

Source Code of org.wso2.carbon.cloud.csg.service.CSGAdminService

/*
* Copyright WSO2, Inc. (http://wso2.com)
*
* Licensed 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.cloud.csg.service;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.wso2.carbon.cloud.csg.CSGProxyService;
import org.wso2.carbon.cloud.csg.CSGProxyServiceConfigLayer;
import org.wso2.carbon.cloud.csg.common.CSGCommonUtils;
import org.wso2.carbon.cloud.csg.common.CSGConstant;
import org.wso2.carbon.cloud.csg.common.CSGException;
import org.wso2.carbon.cloud.csg.common.ServiceMetaData;
import org.wso2.carbon.cloud.csg.common.jms.QpidConfigHolder;
import org.wso2.carbon.core.AbstractAdmin;
import org.wso2.carbon.registry.api.Resource;
import org.wso2.carbon.registry.core.Collection;
import org.wso2.carbon.utils.CarbonUtils;

import java.io.File;
import java.util.StringTokenizer;

/**
* The class <code>CSGAdminService</code> service provides the operations for deploying the proxies
* for out siders. These proxies are the actual proxies that represent the internal
*/
public class CSGAdminService extends AbstractAdmin {
    private static final Log log = LogFactory.getLog(CSGAdminService.class);

    /**
     * Deploy the proxy service
     *
     * @param metaData meta data associated with this proxy
     * @throws CSGException throws in case of an error
     */
    public void deployProxy(ServiceMetaData metaData) throws CSGException {
        CSGProxyService csgProxyService = new CSGProxyServiceConfigLayer().getCSGServiceProxy();
        if (csgProxyService.create(metaData)) {
            if (log.isDebugEnabled()) {
                log.debug("Proxy service,'" + metaData.getServiceName() + "Proxy" + "'" +
                        " deployed successfully");
            }
        } else {
            handleException("Cloud not deploy the proxy service, '" +
                    metaData.getServiceName() + "'");
        }
    }

    /**
     * Undeploy the proxy service
     *
     * @param serviceName the name of the proxy to undeploy
     * @throws CSGException thows in case of an error
     */
    public void unDeployProxy(String serviceName) throws CSGException {
        CSGProxyService csgProxyService = new CSGProxyServiceConfigLayer().getCSGServiceProxy();
        if (csgProxyService.destroy(serviceName)) {
            if (log.isDebugEnabled()) {
                log.info("Proxy service, '" + serviceName + "Proxy" + "'" +
                        " un-deployed successfully");
            }
        } else {
            handleException("Cloud not un-deploy the proxy service,'" +
                    serviceName + "'");
        }
    }

    public String getRemoteConnectionURL() {
        return QpidConfigHolder.getInstance().getConnectionURL();
    }

    public void createOrUpdateServerQpidJNDIFile(String qpidJNDIString, String domain)
            throws CSGException {
        String carbonTenantDir = CarbonUtils.getCarbonTenantsDirPath();
        if (carbonTenantDir != null) {
            File qpidConfigFile = new File(carbonTenantDir + File.separator + domain +
                    File.separator + "csg" + File.separator, CSGConstant.QPID_CONFIG_FILE);
            StringTokenizer st = new StringTokenizer(qpidJNDIString, "&");
            String userName = null, passWord = null;
            while (st.hasMoreTokens()) {
                String propString = st.nextToken();
                String[] temp = propString.split("=");
                if (temp[0].equals(CSGConstant.CSG_AMQP_USER_NAME)) {
                    userName = temp[1];
                } else if (temp[0].equals(CSGConstant.CSG_AMQP_PASSWORD)) {
                    passWord = temp[1];
                } else {
                    CSGCommonUtils.updatePropertyFile(qpidConfigFile, propString);
                }
            }
            String maskedURL = CSGCommonUtils.getMTAwareConnectionURL(userName, passWord, domain,
                    QpidConfigHolder.getInstance().getConnectionURL());
            CSGCommonUtils.updatePropertyFile(qpidConfigFile,
                    "connectionfactory.QueueConnectionFactory" + "=" + maskedURL);
        } else {
            handleException("Carbon Tenants directory cloud not be found to write the Qpid JNDI" +
                    " property file");
        }
    }

    public void createOrUpdateServerRegistryJNDI(String qpidJNDIString) throws CSGException{
        org.wso2.carbon.registry.core.Registry registry = getConfigSystemRegistry();
        try {
            if (!registry.resourceExists(CSGConstant.REGISTRY_CSG_RESOURCE_PATH)) {
                Collection collection = registry.newCollection();
                registry.put(CSGConstant.REGISTRY_CSG_RESOURCE_PATH, collection);
            }
            Resource resource = registry.newResource();
            resource.setContent(getFinalJNDIString(qpidJNDIString));
            registry.put(CSGConstant.REGISTRY_JNDI_RESOURCE_PATH + "/" + "jndi.properties",
                    resource);
        } catch (Exception e) {
            handleException("Cloud not update the registry JNDI entries of the JNDI string '" +
                    qpidJNDIString + "'", e);
        }
    }

    private String getFinalJNDIString(String jndiString) {
        StringTokenizer st = new StringTokenizer(jndiString, "&");
        String newJNDIString = "";
        String userName = null, passWord = null;
        while (st.hasMoreTokens()) {
            String propString = st.nextToken();
            String[] temp = propString.split("=");
            if (temp[0].equals("userName")) {
                userName = temp[1];
            } else if (temp[0].equals("passWord")) {
                passWord = temp[1];
            } else {
                if (newJNDIString.equals("")) {
                    newJNDIString = propString;
                } else {
                    newJNDIString = newJNDIString + "\n" + propString;
                }
            }
        }
        String maskedURL = maskTheURL(QpidConfigHolder.getInstance().getConnectionURL(),
                userName, passWord);
        return "connectionfactory.QueueConnectionFactory=" + maskedURL + "\n" + newJNDIString;
    }

    private String maskTheURL(String originalURL, String userName, String passWord){
        // FIXME- we may need to read the direct connection url given the username
        return originalURL.replace(CSGConstant.CSG_AMQP_USER_NAME,userName).
                replace(CSGConstant.CSG_AMQP_PASSWORD, passWord);
    }

    private void handleException(String msg) throws CSGException {
        log.error(msg);
        throw new CSGException(msg);
    }

    private void handleException(String msg, Throwable t) throws CSGException {
        log.error(msg, t);
        throw new CSGException(msg, t);
    }
}
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