Example usage for org.apache.solr.core CoreContainer isLoaded

Introduction

In this page you can find the example usage for org.apache.solr.core CoreContainer isLoaded.

Prototype

public boolean isLoaded(String name) 

Source Link

Document

Determines whether the core is already loaded or not but does NOT load the core

Usage

From source file:org.apache.jackrabbit.oak.plugins.index.solr.server.EmbeddedSolrServerProvider.java

License:Apache License

private SolrServer createSolrServer() throws Exception {

    log.info("creating new embedded solr server with config: {}", solrServerConfiguration);

    String solrHomePath = solrServerConfiguration.getSolrHomePath();
    String coreName = solrServerConfiguration.getCoreName();
    EmbeddedSolrServerConfiguration.HttpConfiguration httpConfiguration = solrServerConfiguration
            .getHttpConfiguration();/*  w w  w.  java  2 s .c om*/

    if (solrHomePath != null && coreName != null) {
        checkSolrConfiguration(solrHomePath, coreName);
        if (httpConfiguration != null) {
            if (log.isInfoEnabled()) {
                log.info("starting embedded Solr server with http bindings");
            }
            ClassLoader classLoader = Thread.currentThread().getContextClassLoader();
            Thread.currentThread().setContextClassLoader(JettySolrRunner.class.getClassLoader());

            Integer httpPort = httpConfiguration.getHttpPort();
            String context = httpConfiguration.getContext();
            JettySolrRunner jettySolrRunner = null;
            try {
                jettySolrRunner = new JettySolrRunner(solrHomePath, context, httpPort, "solrconfig.xml",
                        "schema.xml", true);
                if (log.isInfoEnabled()) {
                    log.info("Jetty runner instantiated");
                }
                jettySolrRunner.start(true);
                if (log.isInfoEnabled()) {
                    log.info("Jetty runner started");
                }
            } catch (Exception t) {
                if (log.isErrorEnabled()) {
                    log.error("an error has occurred while starting Solr Jetty", t);
                }
            } finally {
                if (jettySolrRunner != null && !jettySolrRunner.isRunning()) {
                    try {
                        jettySolrRunner.stop();
                        if (log.isInfoEnabled()) {
                            log.info("Jetty runner stopped");
                        }
                    } catch (Exception e) {
                        if (log.isErrorEnabled()) {
                            log.error("error while stopping the Jetty runner", e);
                        }
                    }
                }
                Thread.currentThread().setContextClassLoader(classLoader);
            }
            if (log.isInfoEnabled()) {
                log.info("starting HTTP Solr server");
            }
            return new HttpWithJettySolrServer(
                    SolrServerConfigurationDefaults.LOCAL_BASE_URL + ':' + httpPort + context + '/' + coreName,
                    jettySolrRunner);
        } else {
            ClassLoader classLoader = Thread.currentThread().getContextClassLoader();
            Thread.currentThread().setContextClassLoader(CoreContainer.class.getClassLoader());

            CoreContainer coreContainer = new CoreContainer(solrHomePath);
            try {
                if (!coreContainer.isLoaded(coreName)) {
                    coreContainer.load();
                }
            } catch (Exception e) {
                log.error("cannot load core {}, shutting down embedded Solr..", coreName, e);
                try {
                    coreContainer.shutdown();
                } catch (Exception se) {
                    log.error("could not shutdown embedded Solr", se);
                }
                return null;
            } finally {
                Thread.currentThread().setContextClassLoader(classLoader);
            }

            EmbeddedSolrServer server = new EmbeddedSolrServer(coreContainer, coreName);
            if (server.ping().getStatus() == 0) {
                return server;
            } else {
                throw new IOException("the embedded Solr server is not alive");
            }
        }
    } else {
        throw new Exception("SolrServer configuration proprties not set");
    }
}

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