org.apache.stratos.cloud.controller.validate.AWSEC2PartitionValidator.java Source code

Introduction

Here is the source code for org.apache.stratos.cloud.controller.validate.AWSEC2PartitionValidator.java

Source

/*
 * Licensed to the Apache Software Foundation (ASF) under one 
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF 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.apache.stratos.cloud.controller.validate;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.stratos.cloud.controller.exception.InvalidIaasProviderException;
import org.apache.stratos.cloud.controller.exception.InvalidPartitionException;
import org.apache.stratos.cloud.controller.interfaces.Iaas;
import org.apache.stratos.cloud.controller.pojo.IaasProvider;
import org.apache.stratos.cloud.controller.util.CloudControllerConstants;
import org.apache.stratos.cloud.controller.util.CloudControllerUtil;
import org.apache.stratos.cloud.controller.validate.interfaces.PartitionValidator;
import org.apache.stratos.messaging.domain.topology.Scope;

import java.util.Properties;

/**
 * AWS-EC2 {@link PartitionValidator} implementation.
 * @author nirmal
 *
 */
public class AWSEC2PartitionValidator implements PartitionValidator {

    private static final Log log = LogFactory.getLog(AWSEC2PartitionValidator.class);
    private IaasProvider iaasProvider;
    private Iaas iaas;

    @Override
    public IaasProvider validate(String partitionId, Properties properties) throws InvalidPartitionException {
        // validate the existence of the region and zone properties.
        try {
            if (properties.containsKey(Scope.region.toString())) {
                String region = properties.getProperty(Scope.region.toString());

                if (iaasProvider.getImage() != null && !iaasProvider.getImage().contains(region)) {

                    String msg = "Invalid Partition Detected : " + partitionId + " - Cause: Invalid Region: "
                            + region;
                    log.error(msg);
                    throw new InvalidPartitionException(msg);
                }

                iaas.isValidRegion(region);

                IaasProvider updatedIaasProvider = new IaasProvider(iaasProvider);

                Iaas updatedIaas = CloudControllerUtil.getIaas(updatedIaasProvider);
                updatedIaas.setIaasProvider(updatedIaasProvider);

                if (properties.containsKey(Scope.zone.toString())) {
                    String zone = properties.getProperty(Scope.zone.toString());
                    iaas.isValidZone(region, zone);
                    updatedIaasProvider.setProperty(CloudControllerConstants.AVAILABILITY_ZONE, zone);
                    updatedIaas = CloudControllerUtil.getIaas(updatedIaasProvider);
                    updatedIaas.setIaasProvider(updatedIaasProvider);
                }

                updateOtherProperties(updatedIaasProvider, properties);

                return updatedIaasProvider;

            } else {

                return iaasProvider;
            }
        } catch (Exception ex) {
            String msg = "Invalid Partition Detected : " + partitionId + ". Cause: " + ex.getMessage();
            log.error(msg, ex);
            throw new InvalidPartitionException(msg, ex);
        }

    }

    private void updateOtherProperties(IaasProvider updatedIaasProvider, Properties properties) {
        Iaas updatedIaas;
        try {
            updatedIaas = CloudControllerUtil.getIaas(updatedIaasProvider);

            for (Object property : properties.keySet()) {
                if (property instanceof String) {
                    String key = (String) property;
                    if (!Scope.zone.toString().equals(key)) {
                        updatedIaasProvider.setProperty(key, properties.getProperty(key));
                        if (log.isDebugEnabled()) {
                            log.debug("Added property " + key + " to the IaasProvider.");
                        }
                    }
                }
            }
            updatedIaas = CloudControllerUtil.getIaas(updatedIaasProvider);
            updatedIaas.setIaasProvider(updatedIaasProvider);
        } catch (InvalidIaasProviderException ignore) {
        }

    }

    @Override
    public void setIaasProvider(IaasProvider iaas) {
        this.iaasProvider = iaas;
        this.iaas = iaas.getIaas();
    }

}