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// Copyright 2017 Yahoo Holdings. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.vespa.config.server.http.v2;
import com.google.inject.Inject;
import com.google.common.base.Function;
import com.google.common.collect.Collections2;
import com.yahoo.config.provision.TenantName;
import com.yahoo.config.provision.Zone;
import com.yahoo.container.jdisc.HttpRequest;
import com.yahoo.container.jdisc.HttpResponse;
import com.yahoo.jdisc.Response;
import com.yahoo.vespa.config.server.tenant.Tenant;
import com.yahoo.vespa.config.server.tenant.TenantRepository;
import com.yahoo.config.provision.ApplicationId;
import com.yahoo.vespa.config.server.application.TenantApplications;
import com.yahoo.vespa.config.server.http.HttpHandler;
import com.yahoo.vespa.config.server.http.Utils;
import java.util.Collection;
import java.util.List;
/**
* Handler for listing currently active applications for a tenant.
*
* @author Ulf Lilleengen
* @since 5.1
*/
public class ListApplicationsHandler extends HttpHandler {
private final TenantRepository tenantRepository;
private final Zone zone;
@Inject
public ListApplicationsHandler(HttpHandler.Context ctx,
TenantRepository tenantRepository, Zone zone) {
super(ctx);
this.tenantRepository = tenantRepository;
this.zone = zone;
}
@Override
public HttpResponse handleGET(HttpRequest request) {
TenantName tenantName = Utils.getTenantNameFromApplicationsRequest(request);
final String urlBase = Utils.getUrlBase(request, "/application/v2/tenant/" + tenantName + "/application/");
List<ApplicationId> applicationIds = listApplicationIds(tenantName);
Collection<String> applicationUrls = Collections2.transform(applicationIds, new Function<ApplicationId, String>() {
@Override
public String apply(ApplicationId id) {
return createUrlStringFromId(urlBase, id, zone);
}
});
return new ListApplicationsResponse(Response.Status.OK, applicationUrls);
}
private List<ApplicationId> listApplicationIds(TenantName tenantName) {
Utils.checkThatTenantExists(tenantRepository, tenantName);
Tenant tenant = tenantRepository.getTenant(tenantName);
TenantApplications applicationRepo = tenant.getApplicationRepo();
return applicationRepo.listApplications();
}
private static String createUrlStringFromId(String urlBase, ApplicationId id, Zone zone) {
StringBuilder sb = new StringBuilder();
sb.append(urlBase).append(id.application().value());
sb.append("/environment/").append(zone.environment().value());
sb.append("/region/").append(zone.region().value());
sb.append("/instance/").append(id.instance().value());
return sb.toString();
}
}
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