at.molindo.esi4j.action.impl.DefaultMultiSearchResponseWrapper.java Source code

Introduction

Here is the source code for at.molindo.esi4j.action.impl.DefaultMultiSearchResponseWrapper.java

Source

/**
 * Copyright 2010 Molindo GmbH
 *
 * 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 at.molindo.esi4j.action.impl;

import java.util.List;

import org.elasticsearch.action.search.MultiSearchResponse;

import at.molindo.esi4j.action.MultiSearchItemResponseWrapper;
import at.molindo.esi4j.action.MultiSearchResponseWrapper;
import at.molindo.esi4j.action.SearchHitWrapper;
import at.molindo.esi4j.action.SearchHitWrapper.SearchHitReader;

import com.google.common.collect.Lists;

public class DefaultMultiSearchResponseWrapper implements MultiSearchResponseWrapper {

    private final MultiSearchResponse _response;
    private final SearchHitReader _reader;

    private List<MultiSearchItemResponseWrapper> _objects;

    public DefaultMultiSearchResponseWrapper(MultiSearchResponse response, SearchHitReader reader) {
        if (response == null) {
            throw new NullPointerException("response");
        }
        if (reader == null) {
            throw new NullPointerException("reader");
        }
        _response = response;
        _reader = reader;
    }

    @Override
    public synchronized List<MultiSearchItemResponseWrapper> getMultiSearchItemResponses() {
        if (_objects == null) {
            MultiSearchResponse.Item[] reps = _response.getResponses();
            _objects = Lists.newArrayListWithCapacity(reps.length);
            for (int i = 0; i < reps.length; i++) {
                _objects.add(new DefaultMultiSearchItemResponseWrapper(reps[i], _reader));
            }
        }
        return _objects;
    }

    @Override
    public MultiSearchResponse getMultiSearchResponse() {
        return _response;
    }

    @Override
    public List<?> getObjects() {
        return getObjects(Object.class);
    }

    @Override
    public <T> List<T> getObjects(Class<T> type) {
        List<MultiSearchItemResponseWrapper> resps = getMultiSearchItemResponses();

        int size = 0;
        for (MultiSearchItemResponseWrapper response : resps) {
            size += response.getSearchHits().size();
        }

        List<T> objects = Lists.newArrayListWithCapacity(size);

        for (MultiSearchItemResponseWrapper response : resps) {
            objects.addAll(response.getObjects(type));
        }

        return objects;
    }

    @Override
    public List<SearchHitWrapper> getSearchHits() {
        List<MultiSearchItemResponseWrapper> resps = getMultiSearchItemResponses();

        int size = 0;
        for (MultiSearchItemResponseWrapper response : resps) {
            size += response.getSearchHits().size();
        }

        List<SearchHitWrapper> searchHits = Lists.newArrayListWithCapacity(size);

        for (MultiSearchItemResponseWrapper response : resps) {
            searchHits.addAll(response.getSearchHits());
        }

        return searchHits;
    }

}