google.registry.tools.server.ListDomainsAction.java Source code

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Here is the source code for google.registry.tools.server.ListDomainsAction.java

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// Copyright 2016 The Nomulus Authors. All Rights Reserved.
//
// 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 google.registry.tools.server;

import static com.google.common.base.Preconditions.checkArgument;
import static google.registry.model.EppResourceUtils.queryNotDeleted;
import static google.registry.model.registry.Registries.assertTldExists;
import static google.registry.request.Action.Method.GET;
import static google.registry.request.Action.Method.POST;

import com.google.common.collect.ImmutableSet;
import com.google.common.collect.ImmutableSortedSet;
import com.google.common.collect.Lists;
import google.registry.model.domain.DomainResource;
import google.registry.request.Action;
import google.registry.request.Parameter;
import google.registry.util.Clock;
import java.util.Comparator;
import java.util.List;
import javax.inject.Inject;

/** An action that lists domains, for use by the {@code nomulus list_domains} command. */
@Action(path = ListDomainsAction.PATH, method = { GET, POST })
public final class ListDomainsAction extends ListObjectsAction<DomainResource> {

    /** An App Engine limitation on how many subqueries can be used in a single query. */
    private static final int MAX_NUM_SUBQUERIES = 30;
    private static final Comparator<DomainResource> COMPARATOR = new Comparator<DomainResource>() {
        @Override
        public int compare(DomainResource a, DomainResource b) {
            return a.getFullyQualifiedDomainName().compareTo(b.getFullyQualifiedDomainName());
        }
    };
    public static final String PATH = "/_dr/admin/list/domains";

    @Inject
    @Parameter("tlds")
    ImmutableSet<String> tlds;
    @Inject
    Clock clock;

    @Inject
    ListDomainsAction() {
    }

    @Override
    public ImmutableSet<String> getPrimaryKeyFields() {
        return ImmutableSet.of("fullyQualifiedDomainName");
    }

    @Override
    public ImmutableSet<DomainResource> loadObjects() {
        checkArgument(!tlds.isEmpty(), "Must specify TLDs to query");
        for (String tld : tlds) {
            assertTldExists(tld);
        }
        ImmutableSortedSet.Builder<DomainResource> builder = new ImmutableSortedSet.Builder<DomainResource>(
                COMPARATOR);
        for (List<String> batch : Lists.partition(tlds.asList(), MAX_NUM_SUBQUERIES)) {
            builder.addAll(queryNotDeleted(DomainResource.class, clock.nowUtc(), "tld in", batch));
        }
        return builder.build();
    }
}