com.frank.search.solr.core.query.SimpleTermsQuery.java Source code

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Here is the source code for com.frank.search.solr.core.query.SimpleTermsQuery.java

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/*
 * Copyright 2012 - 2013 the original author or authors.
 *
 * 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 com.frank.search.solr.core.query;

import org.springframework.util.StringUtils;

import java.util.ArrayList;
import java.util.Collections;
import java.util.List;

/**
 * @author Christoph Strobl
 * 
 */
public class SimpleTermsQuery extends AbstractQuery implements TermsQuery {

    public static final String DEFAULT_REQUEST_HANDLER = "/terms";

    private TermsOptions termsOptions = new TermsOptions();
    private List<Field> fields = new ArrayList<Field>(1);

    public SimpleTermsQuery() {
        super();
    }

    public void addField(Field field) {
        this.fields.add(field);
    }

    public void addField(String fieldname) {
        this.fields.add(new SimpleField(fieldname));
    }

    public void addFields(String... fieldnames) {
        for (String fieldname : fieldnames) {
            addField(fieldname);
        }
    }

    @Override
    public TermsOptions getTermsOptions() {
        return this.termsOptions;
    }

    @Override
    public List<Field> getTermsFields() {
        return Collections.unmodifiableList(this.fields);
    }

    @Override
    public String getRequestHandler() {
        return StringUtils.hasText(super.getRequestHandler()) ? super.getRequestHandler() : DEFAULT_REQUEST_HANDLER;
    }

    public static Builder queryBuilder() {
        return new Builder();
    }

    public static Builder queryBuilder(String... fieldnames) {
        return new Builder(fieldnames);
    }

    public static class Builder {

        private SimpleTermsQuery query;

        public Builder() {
            this.query = new SimpleTermsQuery();
        }

        public Builder(String... fieldnames) {
            this.query = new SimpleTermsQuery();
            this.query.addFields(fieldnames);
        }

        public Builder withCriteria(Criteria criteria) {
            this.query.addCriteria(criteria);
            return this;
        }

        public Builder limit(int limit) {
            this.query.termsOptions.setLimit(limit);
            return this;
        }

        public Builder maxCount(int maxCount) {
            this.query.termsOptions.setMaxCount(maxCount);
            return this;
        }

        public Builder minCount(int minCount) {
            this.query.termsOptions.setMinCount(minCount);
            return this;
        }

        public Builder prefix(String prefix) {
            this.query.termsOptions.setPrefix(prefix);
            return this;
        }

        public Builder regex(String regex) {
            this.query.termsOptions.setRegex(regex);
            return this;
        }

        public Builder sort(TermsOptions.Sort sort) {
            this.query.termsOptions.setSort(sort);
            return this;
        }

        public Builder fields(String... fieldnames) {
            this.query.addFields(fieldnames);
            return this;
        }

        public Builder regexFlag(TermsOptions.RegexFlag flag) {
            this.query.termsOptions.setRegexFlag(flag);
            return this;
        }

        public Builder handledBy(String requestHandler) {
            this.query.setRequestHandler(requestHandler);
            return this;
        }

        public SimpleTermsQuery build() {
            return this.query;
        }

    }

}