ElevateWord elevateWord3 = new ElevateWord("c", 100.0f, Collections.singletonList("c"), Collections.singletonList("content"),
                Collections.singletonList("tag1"), Collections.singletonList("role1"));

        settings.elevateWord().add(elevateWord1);
        settings.elevateWord().add(elevateWord2);
        settings.elevateWord().add(elevateWord3);

        assertEquals(3, settings.elevateWord().get().length);

        SuggestItem item = items.get(0);
        assertEquals("検索エンジン", item.getText());
        assertEquals("tag1", item.getTags()[0]);
        assertEquals("role1", item.getRoles()[0]);
    }

    protected ReadingConverter createDefaultReadingConverter() throws IOException {
        ReadingConverterChain chain = new ReadingConverterChain();

     * @param tag The tag.
     */
    public void addTag(final String tag) {
        tags.add(tag);
    }

    /**
     * Adds a role to filter by.
     * @param role The role.
     */
    public void addRole(final String role) {
        roles.add(role);
    }

    /**
     * Adds a field to filter by.
     * @param field The field name.
     */
    public void addField(final String field) {

     * @param fields the array of fields associated with the search words
     * @param tags the array of tags associated with the search words
     * @param roles the array of roles associated with the search words
     * @param score the score associated with the search words
     * @param readingConverter the converter to use for converting readings

        if (tags == null) {
            this.tags = Collections.emptyList();
        } else {
            this.tags = tags;
        }
        if (roles == null) {
            this.roles = Collections.emptyList();
        } else {
            this.roles = roles;
        }
    }

    /**
     * Returns the elevate word.
     *
     * @return the elevate word
     */
    public String getElevateWord() {

    /** The timestamp field. */
    public static final String TIMESTAMP = "@timestamp";
    /** The tags field. */
    public static final String TAGS = "tags";
    /** The roles field. */
    public static final String ROLES = "roles";
    /** The fields field. */
    public static final String FIELDS = "fields";
    /** The languages field. */
    public static final String LANGUAGES = "languages";

    public static final String ELEVATE_WORD_FIELDS = "fields";
    /** Key for elevate word tags. */
    public static final String ELEVATE_WORD_TAGS = "tags";
    /** Key for elevate word roles. */
    public static final String ELEVATE_WORD_ROLES = "roles";

    /** Array settings for elevate words. */
    protected ArraySettings arraySettings;

    /**
     * Constructor.
     * @param settings Suggest settings

        request.addTag(tag);
        return this;
    }

    /**
     * Adds a role to filter by.
     * @param role The role.
     * @return This builder instance.
     */
    public PopularWordsRequestBuilder addRole(final String role) {
        request.addRole(role);
        return this;
    }

    /**
     * Adds a field to filter by.
     * @param field The field name.

        request.addTag(tag);
        return this;
    }

    /**
     * Adds a role to filter by.
     * @param role The role.
     * @return This builder instance.
     */
    public SuggestRequestBuilder addRole(final String role) {
        request.addRole(role);
        return this;
    }

    /**
     * Adds a field to filter by.
     * @param field The field name.

    "docFreq": {
      "type": "long"
    },
    "fields": {
      "type": "keyword"
    },
    "kinds": {
      "type": "keyword"
    },
    "queryFreq": {
      "type": "long"
    },
    "roles": {
      "type": "keyword"
    },
    "languages": {
      "type": "keyword"
    },
    "score": {
      "type": "double"
    },
    "tags": {
      "type": "keyword"
    },
    "text": {