org.elasticsearch.action.admin.indices.mapping.delete.TransportDeleteMappingAction Maven / Gradle / Ivy

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/*
 * Licensed to Elastic Search and Shay Banon under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership. Elastic Search 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 org.elasticsearch.action.admin.indices.mapping.delete;

import org.elasticsearch.ElasticSearchException;
import org.elasticsearch.action.ActionListener;
import org.elasticsearch.action.TransportActions;
import org.elasticsearch.action.admin.indices.refresh.RefreshResponse;
import org.elasticsearch.action.admin.indices.refresh.TransportRefreshAction;
import org.elasticsearch.action.deletebyquery.DeleteByQueryResponse;
import org.elasticsearch.action.deletebyquery.TransportDeleteByQueryAction;
import org.elasticsearch.action.support.master.TransportMasterNodeOperationAction;
import org.elasticsearch.client.Requests;
import org.elasticsearch.cluster.ClusterService;
import org.elasticsearch.cluster.ClusterState;
import org.elasticsearch.cluster.block.ClusterBlockLevel;
import org.elasticsearch.cluster.metadata.MetaDataMappingService;
import org.elasticsearch.common.inject.Inject;
import org.elasticsearch.common.settings.Settings;
import org.elasticsearch.index.mapper.TypeFieldMapper;
import org.elasticsearch.index.query.xcontent.FilterBuilders;
import org.elasticsearch.index.query.xcontent.QueryBuilders;
import org.elasticsearch.threadpool.ThreadPool;
import org.elasticsearch.transport.TransportService;

import java.util.concurrent.CountDownLatch;
import java.util.concurrent.atomic.AtomicReference;

/**
 * Delete mapping action.
 *
 * @author kimchy (shay.banon)
 */
public class TransportDeleteMappingAction extends TransportMasterNodeOperationAction {

    private final MetaDataMappingService metaDataMappingService;

    private final TransportDeleteByQueryAction deleteByQueryAction;

    private final TransportRefreshAction refreshAction;

    @Inject public TransportDeleteMappingAction(Settings settings, TransportService transportService, ClusterService clusterService,
                                                ThreadPool threadPool, MetaDataMappingService metaDataMappingService,
                                                TransportDeleteByQueryAction deleteByQueryAction, TransportRefreshAction refreshAction) {
        super(settings, transportService, clusterService, threadPool);
        this.metaDataMappingService = metaDataMappingService;
        this.deleteByQueryAction = deleteByQueryAction;
        this.refreshAction = refreshAction;
    }


    @Override protected String transportAction() {
        return TransportActions.Admin.Indices.Mapping.DELETE;
    }

    @Override protected DeleteMappingRequest newRequest() {
        return new DeleteMappingRequest();
    }

    @Override protected DeleteMappingResponse newResponse() {
        return new DeleteMappingResponse();
    }

    @Override protected void checkBlock(DeleteMappingRequest request, ClusterState state) {
        // update to concrete indices
        request.indices(state.metaData().concreteIndices(request.indices()));

        for (String index : request.indices()) {
            state.blocks().indexBlockedRaiseException(ClusterBlockLevel.METADATA, index);
        }
    }

    @Override protected DeleteMappingResponse masterOperation(final DeleteMappingRequest request, final ClusterState state) throws ElasticSearchException {

        final AtomicReference failureRef = new AtomicReference();
        final CountDownLatch latch = new CountDownLatch(1);
        deleteByQueryAction.execute(Requests.deleteByQueryRequest(request.indices()).query(QueryBuilders.filtered(QueryBuilders.matchAllQuery(), FilterBuilders.termFilter(TypeFieldMapper.NAME, request.type()))), new ActionListener() {
            @Override public void onResponse(DeleteByQueryResponse deleteByQueryResponse) {
                refreshAction.execute(Requests.refreshRequest(request.indices()), new ActionListener() {
                    @Override public void onResponse(RefreshResponse refreshResponse) {
                        metaDataMappingService.removeMapping(new MetaDataMappingService.RemoveRequest(request.indices(), request.type()));
                        latch.countDown();
                    }

                    @Override public void onFailure(Throwable e) {
                        metaDataMappingService.removeMapping(new MetaDataMappingService.RemoveRequest(request.indices(), request.type()));
                        latch.countDown();
                    }
                });
            }

            @Override public void onFailure(Throwable e) {
                failureRef.set(e);
                latch.countDown();
            }
        });

        try {
            latch.await();
        } catch (InterruptedException e) {
            failureRef.set(e);
        }

        if (failureRef.get() != null) {
            if (failureRef.get() instanceof ElasticSearchException) {
                throw (ElasticSearchException) failureRef.get();
            } else {
                throw new ElasticSearchException(failureRef.get().getMessage(), failureRef.get());
            }
        }

        return new DeleteMappingResponse();
    }
}