UserDao.java

/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF 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.apache.usergrid.chop.webapp.dao;

import com.google.inject.Inject;
import org.apache.usergrid.chop.stack.User;
import org.apache.usergrid.chop.webapp.elasticsearch.IElasticSearchClient;
import org.apache.usergrid.chop.webapp.elasticsearch.Util;
import org.elasticsearch.action.delete.DeleteResponse;
import org.elasticsearch.action.index.IndexResponse;
import org.elasticsearch.action.search.SearchResponse;
import org.elasticsearch.search.SearchHit;

import java.util.ArrayList;
import java.util.List;
import java.util.Map;

import static org.elasticsearch.common.xcontent.XContentFactory.jsonBuilder;
import static org.elasticsearch.index.query.QueryBuilders.termQuery;

public class UserDao extends Dao {

    public static final String DAO_INDEX_KEY = "users";
    public static final String DAO_TYPE_KEY = "user";

    private static final int MAX_RESULT_SIZE = 10000;


    @Inject
    public UserDao(IElasticSearchClient elasticSearchClient) {
        super(elasticSearchClient);
    }


    public boolean save(User user) throws Exception {

        IndexResponse response = elasticSearchClient.getClient()
                .prepareIndex(DAO_INDEX_KEY, DAO_TYPE_KEY, user.getUsername())
                .setRefresh(true)
                .setSource(
                        jsonBuilder()
                                .startObject()
                                .field("password", user.getPassword())
                                .endObject()
                )
                .execute()
                .actionGet();

        return response.isCreated();
    }


    public User get(String username) {

        SearchResponse response = elasticSearchClient.getClient()
                .prepareSearch(DAO_INDEX_KEY)
                .setTypes(DAO_TYPE_KEY)
                .setQuery(termQuery("_id", username))
                .execute()
                .actionGet();

        SearchHit hits[] = response.getHits().hits();

        return hits.length > 0 ? toUser(hits[0]) : null;
    }


    public List<User> getList() {
        SearchResponse response = elasticSearchClient.getClient()
                .prepareSearch(DAO_INDEX_KEY)
                .setTypes(DAO_TYPE_KEY)
                .setSize(MAX_RESULT_SIZE)
                .execute()
                .actionGet();

        ArrayList<User> users = new ArrayList<User>();

        for (SearchHit hit : response.getHits().hits()) {
            users.add(toUser(hit));
        }

        return users;
    }


    public static User toUser(SearchHit hit) {
        Map<String, Object> json = hit.getSource();

        return new User(
                hit.getId(),
                Util.getString(json, "password")
        );
    }


    public boolean delete(String username) {

        DeleteResponse response = elasticSearchClient.getClient()
                .prepareDelete(DAO_INDEX_KEY, DAO_TYPE_KEY, username)
                .setRefresh(true)
                .execute()
                .actionGet();

        return response.isFound();
    }
}