org.elasticsearch.action.termvectors.MultiTermVectorsResponse Maven / Gradle / Ivy

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/*
 * Licensed to Elasticsearch under one or more contributor
 * license agreements. See the NOTICE file distributed with
 * this work for additional information regarding copyright
 * ownership. Elasticsearch 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.termvectors;

import org.elasticsearch.ElasticsearchException;
import org.elasticsearch.action.ActionResponse;
import org.elasticsearch.common.io.stream.StreamInput;
import org.elasticsearch.common.io.stream.StreamOutput;
import org.elasticsearch.common.io.stream.Writeable;
import org.elasticsearch.common.xcontent.ToXContentObject;
import org.elasticsearch.common.xcontent.XContentBuilder;

import java.io.IOException;
import java.util.Arrays;
import java.util.Iterator;

public class MultiTermVectorsResponse extends ActionResponse implements Iterable, ToXContentObject {

    /**
     * Represents a failure.
     */
    public static class Failure implements Writeable {
        private final String index;
        private final String type;
        private final String id;
        private final Exception cause;

        public Failure(String index, String type, String id, Exception cause) {
            this.index = index;
            this.type = type;
            this.id = id;
            this.cause = cause;
        }

        public Failure(StreamInput in) throws IOException {
            index = in.readString();
            type = in.readOptionalString();
            id = in.readString();
            cause = in.readException();
        }

        /**
         * The index name of the action.
         */
        public String getIndex() {
            return this.index;
        }

        /**
         * The type of the action.
         *
         * @deprecated Types are in the process of being removed.
         */
        @Deprecated
        public String getType() {
            return type;
        }

        /**
         * The id of the action.
         */
        public String getId() {
            return id;
        }

        /**
         * The failure cause.
         */
        public Exception getCause() {
            return this.cause;
        }

        @Override
        public void writeTo(StreamOutput out) throws IOException {
            out.writeString(index);
            out.writeOptionalString(type);
            out.writeString(id);
            out.writeException(cause);
        }
    }

    private final MultiTermVectorsItemResponse[] responses;

    public MultiTermVectorsResponse(MultiTermVectorsItemResponse[] responses) {
        this.responses = responses;
    }

    public MultiTermVectorsResponse(StreamInput in) throws IOException {
        super(in);
        responses = new MultiTermVectorsItemResponse[in.readVInt()];
        for (int i = 0; i < responses.length; i++) {
            responses[i] = new MultiTermVectorsItemResponse(in);
        }
    }

    public MultiTermVectorsItemResponse[] getResponses() {
        return this.responses;
    }

    @Override
    public Iterator iterator() {
        return Arrays.stream(responses).iterator();
    }

    @Override
    public XContentBuilder toXContent(XContentBuilder builder, Params params) throws IOException {
        builder.startObject();
        builder.startArray(Fields.DOCS);
        for (MultiTermVectorsItemResponse response : responses) {
            if (response.isFailed()) {
                builder.startObject();
                Failure failure = response.getFailure();
                builder.field(Fields._INDEX, failure.getIndex());
                builder.field(Fields._TYPE, failure.getType());
                builder.field(Fields._ID, failure.getId());
                ElasticsearchException.generateFailureXContent(builder, params, failure.getCause(), true);
                builder.endObject();
            } else {
                TermVectorsResponse getResponse = response.getResponse();
                getResponse.toXContent(builder, params);
            }
        }
        builder.endArray();
        builder.endObject();
        return builder;
    }

    static final class Fields {
        static final String DOCS = "docs";
        static final String _INDEX = "_index";
        static final String _TYPE = "_type";
        static final String _ID = "_id";
    }

    @Override
    public void writeTo(StreamOutput out) throws IOException {
        out.writeVInt(responses.length);
        for (MultiTermVectorsItemResponse response : responses) {
            response.writeTo(out);
        }
    }
}