001/*
002 * Copyright (c) 2015 Nuxeo SA (http://nuxeo.com/) and others.
003 *
004 * All rights reserved. This program and the accompanying materials
005 * are made available under the terms of the GNU Lesser General Public License
006 * (LGPL) version 2.1 which accompanies this distribution, and is available at
007 * http://www.gnu.org/licenses/lgpl-2.1.html
008 *
009 * This library is distributed in the hope that it will be useful,
010 * but WITHOUT ANY WARRANTY; without even the implied warranty of
011 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
012 * Lesser General Public License for more details.
013 *
014 * Contributors:
015 *     Benoit Delbosc
016 */
017
018package org.nuxeo.ecm.core.query.sql.model;
019
020import org.apache.commons.lang.StringUtils;
021
022public class EsHint implements Operand {
023
024    private static final long serialVersionUID = 4590329982296853715L;
025
026    public final String index;
027
028    public final String analyzer;
029
030    public final String operator;
031
032    public EsHint(EsIdentifierList index, String analyzer, String operator) {
033        this.index = (index == null) ? null : index.toString();
034        this.analyzer = analyzer;
035        this.operator = operator;
036    }
037
038    @Override
039    public void accept(IVisitor visitor) {
040    }
041
042    @Override
043    public String toString() {
044        StringBuilder buf = new StringBuilder();
045        buf.append("/*+ES: ");
046        if (index != null) {
047            buf.append(String.format("INDEX(%s) ", index));
048        }
049        if (analyzer != null) {
050            buf.append(String.format("ANALYZER(%s) ", analyzer));
051        }
052        if (operator != null) {
053            buf.append(String.format("OPERATOR(%s) ", operator));
054        }
055        buf.append("*/");
056        return buf.toString();
057    }
058
059    @Override
060    public boolean equals(Object obj) {
061        if (obj == this) {
062            return true;
063        }
064        if (!(obj instanceof EsHint)) {
065            return false;
066        }
067        return equals((EsHint) obj);
068    }
069
070    private boolean equals(EsHint other) {
071        return StringUtils.equals(index, other.index) && StringUtils.equals(analyzer, other.analyzer)
072                && StringUtils.equals(operator, other.operator);
073    }
074
075    public String[] getIndex() {
076        if (index == null) {
077            return null;
078        }
079        return index.split(",");
080    }
081}