at.pagu.soldockr.core.EmbeddedSolrServerFactory.java Source code

Introduction

Here is the source code for at.pagu.soldockr.core.EmbeddedSolrServerFactory.java

Source

/*
 * Copyright (C) 2012 sol-dock-r 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 at.pagu.soldockr.core;

import java.io.File;
import java.io.IOException;

import javax.xml.parsers.ParserConfigurationException;

import org.apache.commons.lang.StringUtils;
import org.apache.solr.client.solrj.SolrServer;
import org.apache.solr.client.solrj.embedded.EmbeddedSolrServer;
import org.apache.solr.core.CoreContainer;
import org.springframework.util.ResourceUtils;
import org.xml.sax.SAXException;

import at.pagu.soldockr.SolrServerFactory;

/**
 * The EmbeddedSolrServerFactory allows hosting of an SolrServer instance in embedded mode.
 * Configuration files are loaded via {@link ResourceUtils}, therefore it is possible to place them in classpath.
 * Use this class for Testing. It is not recommended for production.
 * 
 * @author Christoph Strobl
 */
public class EmbeddedSolrServerFactory implements SolrServerFactory {

    private static final String SOLR_HOME_SYSTEM_PROPERTY = "solr.solr.home";

    private EmbeddedSolrServer solrServer;

    /**
    * @param path Any Path expression valid for use with {@link ResourceUtils}
    * @throws ParserConfigurationException
    * @throws IOException
    * @throws SAXException
    */
    public EmbeddedSolrServerFactory(String path) throws ParserConfigurationException, IOException, SAXException {
        this.solrServer = createPathConfiguredSolrServer(path);
    }

    /**
     * @param path Any Path expression valid for use with {@link ResourceUtils}
     * @return new instance of {@link EmbeddedSolrServer}
     * @throws ParserConfigurationException
     * @throws IOException
     * @throws SAXException
     */
    public final EmbeddedSolrServer createPathConfiguredSolrServer(String path)
            throws ParserConfigurationException, IOException, SAXException {
        String solrHome = System.getProperty(SOLR_HOME_SYSTEM_PROPERTY);

        if (StringUtils.isBlank(solrHome)) {
            solrHome = StringUtils.remove(ResourceUtils.getURL(path).toString(), "file:/");
        }
        return new EmbeddedSolrServer(new CoreContainer(solrHome, new File(solrHome + "/solr.xml")), null);
    }

    @Override
    public SolrServer getSolrServer() {
        return this.solrServer;
    }

    @Override
    public String getCore() {
        return null;
    }

}