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1 files changed, 67 insertions, 0 deletions

diff --git a/configserver/src/main/java/com/yahoo/vespa/config/server/http/v2/ListApplicationsHandler.java b/configserver/src/main/java/com/yahoo/vespa/config/server/http/v2/ListApplicationsHandler.java
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+// Copyright 2016 Yahoo Inc. 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.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.container.logging.AccessLog;
+import com.yahoo.jdisc.Response;
+import com.yahoo.vespa.config.server.Tenant;
+import com.yahoo.vespa.config.server.Tenants;
+import com.yahoo.config.provision.ApplicationId;
+import com.yahoo.vespa.config.server.application.ApplicationRepo;
+import com.yahoo.vespa.config.server.http.HttpHandler;
+import com.yahoo.vespa.config.server.http.Utils;
+
+import java.util.Collection;
+import java.util.List;
+import java.util.concurrent.Executor;
+
+/**
+ * Handler for listing currently active applications for a tenant.
+ *
+ * @author lulf
+ * @since 5.1
+ */
+public class ListApplicationsHandler extends HttpHandler {
+    private final Tenants tenants;
+    private final Zone zone;
+    public ListApplicationsHandler(Executor executor, AccessLog accessLog, Tenants tenants, Zone zone) {
+        super(executor, accessLog);
+        this.tenants = tenants;
+        this.zone = zone;
+    }
+
+    @Override
+    public HttpResponse handleGET(HttpRequest request) {
+        TenantName tenantName = Utils.getTenantFromApplicationsRequest(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) {
+        Tenant tenant = Utils.checkThatTenantExists(tenants, tenantName);
+        ApplicationRepo 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();
+    }
+}