at.ac.tuwien.dsg.comot.m.cs.UtilsCs.java Source code

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/*******************************************************************************
 * Copyright 2014 Technische Universitat Wien (TUW), Distributed Systems Group E184
 *
 * This work was partially supported by the European Commission in terms of the
 * CELAR FP7 project (FP7-ICT-2011-8 \#317790)
 *
 * 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 at.ac.tuwien.dsg.comot.m.cs;

import java.io.IOException;

import javax.xml.bind.JAXBContext;
import javax.xml.bind.JAXBException;
import javax.xml.bind.Unmarshaller;

import org.apache.commons.lang3.ArrayUtils;
import org.oasis.tosca.Definitions;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import at.ac.tuwien.dsg.cloud.salsa.tosca.extension.SalsaInstanceDescription_VM;
import at.ac.tuwien.dsg.cloud.salsa.tosca.extension.SalsaMappingProperties;
import at.ac.tuwien.dsg.comot.m.common.Utils;
import at.ac.tuwien.dsg.comot.rsybl.CloudServiceXML;
import at.ac.tuwien.dsg.comot.rsybl.ObjectFactory;
import at.ac.tuwien.dsg.csdg.inputProcessing.multiLevelModel.deploymentDescription.DeploymentDescription;
import at.ac.tuwien.dsg.mela.common.configuration.metricComposition.CompositionRulesConfiguration;
import at.ac.tuwien.dsg.mela.common.monitoringConcepts.MonitoredElement;
import at.ac.tuwien.dsg.mela.common.requirements.Requirements;

public class UtilsCs {

    protected static final Logger LOG = LoggerFactory.getLogger(UtilsCs.class);

    protected static ObjectFactory factoryRsybl = new ObjectFactory();

    protected static JAXBContext jaxbContext;

    public static final Class<?>[] CONTEXT_TOSCA = new Class<?>[] { Definitions.class,
            SalsaMappingProperties.class };
    public static final Class<?>[] CONTEXT_SALSA = new Class<?>[] {
            at.ac.tuwien.dsg.cloud.salsa.common.cloudservice.model.CloudService.class,
            SalsaInstanceDescription_VM.class };

    static {
        try {
            jaxbContext = JAXBContext.newInstance(ArrayUtils.addAll(CONTEXT_TOSCA, CONTEXT_SALSA));
        } catch (JAXBException e) {
            LOG.error("Failed to create JAXB context", e);
        }
    }

    public static String asString(Definitions definition) throws JAXBException {
        return Utils.asXmlString(definition, CONTEXT_TOSCA);
    }

    public static String asString(at.ac.tuwien.dsg.cloud.salsa.common.cloudservice.model.CloudService cloudService)
            throws JAXBException {
        return Utils.asXmlString(cloudService, CONTEXT_SALSA);
    }

    public static String asString(MonitoredElement element) throws JAXBException {
        return Utils.asXmlString(element);
    }

    public static String asString(DeploymentDescription deployment) throws JAXBException {
        return Utils.asXmlString(deployment);
    }

    public static String asString(CloudServiceXML xml) throws JAXBException {
        return Utils.asXmlString(factoryRsybl.createCloudService(xml), "at.ac.tuwien.dsg.comot.rsybl");
    }

    public static Definitions loadTosca(String path) throws JAXBException, IOException {

        JAXBContext context = JAXBContext.newInstance(CONTEXT_TOSCA);
        Unmarshaller unmarshaller = context.createUnmarshaller();

        return (Definitions) unmarshaller.unmarshal(Utils.loadFileFromSystem(path));
    }

    public static CompositionRulesConfiguration loadMetricCompositionRules(String serviceId, String path)
            throws JAXBException, IOException {

        CompositionRulesConfiguration xmlContent = null;

        JAXBContext context = JAXBContext.newInstance(CompositionRulesConfiguration.class);
        Unmarshaller unmarshaller = context.createUnmarshaller();

        xmlContent = (CompositionRulesConfiguration) unmarshaller.unmarshal(Utils.loadFileFromSystem(path));
        xmlContent.setTargetServiceID(serviceId);

        return xmlContent;
    }

    public static MonitoredElement loadMonitoredElement(String path) throws JAXBException, IOException {

        JAXBContext context = JAXBContext.newInstance(MonitoredElement.class);
        Unmarshaller unmarshaller = context.createUnmarshaller();

        return (MonitoredElement) unmarshaller.unmarshal(Utils.loadFileFromSystem(path));

    }

    public static Requirements loadRequirements(String path) throws JAXBException, IOException {

        JAXBContext context = JAXBContext.newInstance(Requirements.class);
        Unmarshaller unmarshaller = context.createUnmarshaller();

        return (Requirements) unmarshaller.unmarshal(Utils.loadFileFromSystem(path));

    }

}