Java tutorial
/* * ProActive Parallel Suite(TM): * The Open Source library for parallel and distributed * Workflows & Scheduling, Orchestration, Cloud Automation * and Big Data Analysis on Enterprise Grids & Clouds. * * Copyright (c) 2007 - 2017 ActiveEon * Contact: contact@activeeon.com * * This library is free software: you can redistribute it and/or * modify it under the terms of the GNU Affero General Public License * as published by the Free Software Foundation: version 3 of * the License. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU Affero General Public License for more details. * * You should have received a copy of the GNU Affero General Public License * along with this program. If not, see <http://www.gnu.org/licenses/>. * * If needed, contact us to obtain a release under GPL Version 2 or 3 * or a different license than the AGPL. */ package org.ow2.proactive.connector.iaas.cloud.provider.jclouds; import static org.jclouds.compute.predicates.NodePredicates.runningInGroup; import static org.jclouds.scriptbuilder.domain.Statements.exec; import java.util.Arrays; import java.util.List; import java.util.Map; import java.util.Optional; import java.util.Set; import java.util.function.BiFunction; import java.util.stream.Collectors; import org.jclouds.compute.ComputeService; import org.jclouds.compute.domain.ExecResponse; import org.jclouds.compute.domain.NodeMetadata; import org.jclouds.compute.domain.internal.NodeMetadataImpl; import org.jclouds.compute.options.RunScriptOptions; import org.jclouds.domain.LoginCredentials; import org.jclouds.scriptbuilder.ScriptBuilder; import org.jclouds.scriptbuilder.domain.OsFamily; import org.ow2.proactive.connector.iaas.cloud.provider.CloudProvider; import org.ow2.proactive.connector.iaas.model.Hardware; import org.ow2.proactive.connector.iaas.model.Image; import org.ow2.proactive.connector.iaas.model.Infrastructure; import org.ow2.proactive.connector.iaas.model.Instance; import org.ow2.proactive.connector.iaas.model.InstanceScript; import org.ow2.proactive.connector.iaas.model.Network; import org.ow2.proactive.connector.iaas.model.ScriptResult; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.stereotype.Component; import com.google.common.collect.Lists; @Component public abstract class JCloudsProvider implements CloudProvider { @Autowired private JCloudsComputeServiceCache jCloudsComputeServiceCache; @Override public void deleteInstance(Infrastructure infrastructure, String instanceId) { getComputeServiceFromInfastructure(infrastructure).destroyNode(instanceId); } @Override public Set<Instance> getAllInfrastructureInstances(Infrastructure infrastructure) { return getComputeServiceFromInfastructure(infrastructure).listNodes().stream() .map(computeMetadata -> (NodeMetadataImpl) computeMetadata) .map(nodeMetadataImpl -> instanceCreatorFromNodeMetadata.apply(nodeMetadataImpl, infrastructure.getId())) .collect(Collectors.toSet()); } @Override public List<ScriptResult> executeScriptOnInstanceId(Infrastructure infrastructure, String instanceId, InstanceScript instanceScript) { ExecResponse execResponse; try { execResponse = getComputeServiceFromInfastructure(infrastructure).runScriptOnNode(instanceId, buildScriptToExecuteString(instanceScript), buildScriptOptions(instanceScript)); } catch (Exception e) { throw new RuntimeException(e); } return Lists.newArrayList(new ScriptResult(instanceId, execResponse.getOutput(), execResponse.getError())); } @Override public List<ScriptResult> executeScriptOnInstanceTag(Infrastructure infrastructure, String instanceTag, InstanceScript instanceScript) { Map<? extends NodeMetadata, ExecResponse> execResponses; try { execResponses = getComputeServiceFromInfastructure(infrastructure).runScriptOnNodesMatching( runningInGroup(instanceTag), buildScriptToExecuteString(instanceScript), buildScriptOptions(instanceScript)); } catch (Exception e) { throw new RuntimeException(e); } return execResponses.entrySet().stream().map(entry -> new ScriptResult(entry.getKey().getId(), entry.getValue().getOutput(), entry.getValue().getError())).collect(Collectors.toList()); } @Override public Set<Image> getAllImages(Infrastructure infrastructure) { return getComputeServiceFromInfastructure(infrastructure).listImages().stream() .map(it -> Image.builder().id(it.getId()).name(it.getName()).build()).collect(Collectors.toSet()); } @Override public void deleteInfrastructure(Infrastructure infrastructure) { jCloudsComputeServiceCache.removeComputeService(infrastructure); } protected final BiFunction<NodeMetadataImpl, String, Instance> instanceCreatorFromNodeMetadata = ( nodeMetadataImpl, infrastructureId) -> { return Instance.builder().id(nodeMetadataImpl.getId()) .tag(Optional.ofNullable(nodeMetadataImpl.getName()).orElse("")) .image(nodeMetadataImpl.getImageId()).number("1") .hardware(Optional.ofNullable(nodeMetadataImpl.getHardware()) .map(hardware -> Hardware.builder() .minRam(String.valueOf(nodeMetadataImpl.getHardware().getRam())) .minCores(String.valueOf(nodeMetadataImpl.getHardware().getProcessors().size())) .type(nodeMetadataImpl.getHardware().getType().name()).build()) .orElse(new Hardware())) .network(Network.builder() .publicAddresses(Lists.newArrayList(nodeMetadataImpl.getPublicAddresses())) .privateAddresses(Lists.newArrayList(nodeMetadataImpl.getPrivateAddresses())).build()) .status(nodeMetadataImpl.getStatus().name()).build(); }; protected ComputeService getComputeServiceFromInfastructure(Infrastructure infrastructure) { return jCloudsComputeServiceCache.getComputeService(infrastructure); } protected String buildScriptToExecuteString(InstanceScript instanceScript) { return Optional.ofNullable(instanceScript).map(scriptToRun -> { ScriptBuilder scriptBuilder = new ScriptBuilder(); Arrays.stream(scriptToRun.getScripts()) .forEachOrdered(script -> scriptBuilder.addStatement(exec(script))); return scriptBuilder.render(OsFamily.UNIX); }).orElse(""); } private RunScriptOptions buildScriptOptions(InstanceScript instanceScript) { return Optional.ofNullable(instanceScript.getCredentials()) .map(credentials -> RunScriptOptions.Builder.runAsRoot(false) .overrideLoginCredentials(new LoginCredentials.Builder().user(credentials.getUsername()) .password(credentials.getPassword()).authenticateSudo(false).build())) .orElse(RunScriptOptions.NONE); } }