io.fabric8.service.jclouds.commands.CloudServiceList.java Source code

Introduction

Here is the source code for io.fabric8.service.jclouds.commands.CloudServiceList.java

Source

/**
 *  Copyright 2005-2014 Red Hat, Inc.
 *
 *  Red Hat 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 io.fabric8.service.jclouds.commands;

import java.io.PrintStream;
import java.util.List;

import com.google.common.base.Function;
import com.google.common.collect.Iterables;
import com.google.common.reflect.TypeToken;
import org.apache.felix.gogo.commands.Command;
import io.fabric8.boot.commands.support.FabricCommand;
import io.fabric8.service.jclouds.ComputeRegistry;
import org.jclouds.apis.ApiMetadata;
import org.jclouds.apis.Apis;
import org.jclouds.compute.ComputeService;
import org.jclouds.compute.ComputeServiceContext;
import org.jclouds.javax.annotation.Nullable;
import org.jclouds.providers.ProviderMetadata;
import org.jclouds.providers.Providers;

@Command(name = "cloud-service-list", scope = "fabric", description = "Lists the cloud providers registered with the fabric.")
public class CloudServiceList extends FabricCommand {

    public static final String PROVIDERFORMAT = "%-24s %-12s %-24s %-24s";
    private ComputeRegistry computeRegistry;

    @Override
    protected Object doExecute() throws Exception {
        Iterable<ProviderMetadata> providers = Providers.viewableAs(TypeToken.of(ComputeServiceContext.class));
        Iterable<ApiMetadata> apis = Apis.viewableAs(TypeToken.of(ComputeServiceContext.class));

        Iterable<String> providerIds = Iterables.transform(providers, new Function<ProviderMetadata, String>() {
            @Override
            public String apply(@Nullable ProviderMetadata input) {
                return input.getId();
            }
        });

        Iterable<String> apiIds = Iterables.transform(apis, new Function<ApiMetadata, String>() {
            @Override
            public String apply(@Nullable ApiMetadata input) {
                return input.getId();
            }
        });

        boolean providerOrApiFound = false;

        if (apiIds != null) {
            providerOrApiFound = true;
            System.out.println("Compute APIs:");
            System.out.println("-------------");
            printComputeProvidersOrApis(apiIds, computeRegistry.list(), "", System.out);
        }

        if (providers != null) {
            providerOrApiFound = true;
            System.out.println("Compute Providers:");
            System.out.println("-------------");
            printComputeProvidersOrApis(providerIds, computeRegistry.list(), "", System.out);
        }

        if (!providerOrApiFound) {
            System.out.println("No providers or apis have been found.");
        }
        return null;
    }

    protected void printComputeProvidersOrApis(Iterable<String> providersOrApis,
            List<ComputeService> computeServices, String indent, PrintStream out) {
        out.println(String.format(PROVIDERFORMAT, "[id]", "[type]", "[local services]", "[fabric services]"));
        for (String providerOrApi : providersOrApis) {
            boolean registered = false;
            StringBuffer localServices = new StringBuffer();
            StringBuffer fabricServices = new StringBuffer();

            localServices.append("[ ");
            fabricServices.append("[ ");

            for (ComputeService computeService : computeServices) {
                if (computeService.getContext().unwrap().getId().equals(providerOrApi)) {
                    String name = (String) computeService.getContext().unwrap().getName();
                    if (getCurator() != null && getCurator().getZookeeperClient().isConnected()) {
                        fabricServices.append(name).append(" ");
                    } else {
                        localServices.append(name).append(" ");
                    }

                }
            }
            localServices.append("]");
            fabricServices.append("]");
            out.println(String.format(PROVIDERFORMAT, providerOrApi, "compute", localServices.toString(),
                    fabricServices.toString()));
        }
    }

    public ComputeRegistry getComputeRegistry() {
        return computeRegistry;
    }

    public void setComputeRegistry(ComputeRegistry computeRegistry) {
        this.computeRegistry = computeRegistry;
    }
}