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added method to create non existing core
Issue #554
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imixs-workflow-solr/src/main/java/org/imixs/workflow/engine/solr/SolrIndexService.java
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| /******************************************************************************* | ||
| * Imixs Workflow | ||
| * Copyright (C) 2001, 2011 Imixs Software Solutions GmbH, | ||
| * http://www.imixs.com | ||
| * | ||
| * This program is free software; you can redistribute it and/or | ||
| * modify it under the terms of the GNU General Public License | ||
| * as published by the Free Software Foundation; either version 2 | ||
| * of the License, or (at your option) any later version. | ||
| * | ||
| * This program is distributed in the hope that it will be useful, | ||
| * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | ||
| * General Public License for more details. | ||
| * | ||
| * You can receive a copy of the GNU General Public | ||
| * License at http://www.gnu.org/licenses/gpl.html | ||
| * | ||
| * Project: | ||
| * http://www.imixs.org | ||
| * http://java.net/projects/imixs-workflow | ||
| * | ||
| * Contributors: | ||
| * Imixs Software Solutions GmbH - initial API and implementation | ||
| * Ralph Soika - Software Developer | ||
| *******************************************************************************/ | ||
|
|
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| package org.imixs.workflow.engine.solr; | ||
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| import java.io.IOException; | ||
| import java.util.ArrayList; | ||
| import java.util.List; | ||
| import java.util.logging.Logger; | ||
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|
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| import javax.annotation.PostConstruct; | ||
| import javax.annotation.security.DeclareRoles; | ||
| import javax.annotation.security.RolesAllowed; | ||
| import javax.ejb.Stateless; | ||
| import javax.enterprise.event.Observes; | ||
| import javax.inject.Inject; | ||
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| import org.eclipse.microprofile.config.inject.ConfigProperty; | ||
| import org.imixs.workflow.ItemCollection; | ||
| import org.imixs.workflow.engine.DocumentService; | ||
| import org.imixs.workflow.engine.SetupEvent; | ||
| import org.imixs.workflow.engine.index.DefaultOperator; | ||
| import org.imixs.workflow.engine.index.SchemaService; | ||
| import org.imixs.workflow.engine.index.SearchService; | ||
| import org.imixs.workflow.exceptions.InvalidAccessException; | ||
| import org.imixs.workflow.exceptions.QueryException; | ||
| import org.imixs.workflow.services.rest.BasicAuthenticator; | ||
| import org.imixs.workflow.services.rest.FormAuthenticator; | ||
| import org.imixs.workflow.services.rest.RestAPIException; | ||
| import org.imixs.workflow.services.rest.RestClient; | ||
|
|
||
| /** | ||
| * The SolrCoreService checks the existence of a solr core. If no core is found, | ||
| * than the service tries to create a new core from scratch. | ||
| * | ||
| * @version 1.0 | ||
| * @author rsoika | ||
| */ | ||
| @DeclareRoles({ "org.imixs.ACCESSLEVEL.NOACCESS", "org.imixs.ACCESSLEVEL.READERACCESS", | ||
| "org.imixs.ACCESSLEVEL.AUTHORACCESS", "org.imixs.ACCESSLEVEL.EDITORACCESS", | ||
| "org.imixs.ACCESSLEVEL.MANAGERACCESS" }) | ||
| @RolesAllowed({ "org.imixs.ACCESSLEVEL.NOACCESS", "org.imixs.ACCESSLEVEL.READERACCESS", | ||
| "org.imixs.ACCESSLEVEL.AUTHORACCESS", "org.imixs.ACCESSLEVEL.EDITORACCESS", | ||
| "org.imixs.ACCESSLEVEL.MANAGERACCESS" }) | ||
| @Stateless | ||
| public class SolrIndexService { | ||
|
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| public static final int DEFAULT_MAX_SEARCH_RESULT = 9999; // limiting the | ||
| // total | ||
| // number of hits | ||
| public static final int DEFAULT_PAGE_SIZE = 100; // default docs in one page | ||
|
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| @Inject | ||
| @ConfigProperty(name = "solr.server", defaultValue = "http://solr:8983") | ||
| private String host; | ||
|
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| @Inject | ||
| @ConfigProperty(name = "solr.core", defaultValue = "imixs-workflow") | ||
| private String core; | ||
|
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| @Inject | ||
| @ConfigProperty(name = "solr.configset", defaultValue = "_default") | ||
| private String configset; | ||
|
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| @Inject | ||
| @ConfigProperty(name = "solr.user", defaultValue = "") | ||
| private String user; | ||
|
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| @Inject | ||
| @ConfigProperty(name = "solr.password", defaultValue = "") | ||
| private String password; | ||
|
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| @Inject | ||
| private SchemaService schemaService; | ||
|
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| private RestClient restClient; | ||
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| private static Logger logger = Logger.getLogger(SolrIndexService.class.getName()); | ||
|
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| /** | ||
| * Create a rest client instance | ||
| */ | ||
| @PostConstruct | ||
| public void init() { | ||
| // create rest client | ||
| restClient = new RestClient(host); | ||
| if (user != null && !user.isEmpty()) { | ||
| BasicAuthenticator authenticator = new BasicAuthenticator(user, password); | ||
| restClient.registerRequestFilter(authenticator); | ||
| } | ||
| } | ||
|
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| /** | ||
| * The Init method verifies the status of the solr core. If no core is found, | ||
| * than the method creates a new empty core | ||
| * | ||
| * @param setupEvent | ||
| */ | ||
| public void setup(@Observes SetupEvent setupEvent) { | ||
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| logger.info("...verify solr core '" + core + "'..."); | ||
| try { | ||
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| String status = restClient.get(host + "/solr/admin/cores?action=STATUS&core=" + core + "&indexInfo=false"); | ||
| int httpResult = restClient.getLastHTTPResult(); | ||
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| // we assume that if the staus respons does not contain the name of the core, no | ||
| // core exists | ||
| if (httpResult != 200 || !status.contains("\"name\":\"" + core + "\"")) { | ||
| logger.info("...no solr core '" + core + "' found!"); | ||
| createCore(); | ||
| } else { | ||
| logger.info("...solr core " + core + "' OK "); | ||
| } | ||
| } catch (RestAPIException | IOException e) { | ||
| logger.warning("Failed to verify solr core - " + e.getMessage()); | ||
| e.printStackTrace(); | ||
| } | ||
| } | ||
|
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| /** | ||
| * Connects the solr core | ||
| * <p> | ||
| * In case no core yet exits, the method tries to create a new one. This | ||
| * typically is necessary after first deployment. | ||
| * | ||
| * @param prop | ||
| * @return | ||
| * @throws IOException | ||
| * @throws Exception | ||
| */ | ||
| private void createCore() throws IOException { | ||
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| String uri = host + "/solr/admin/cores?action=CREATE&name=" + core + "&instanceDir=" + core | ||
| + "&configSet=/opt/solr/server/solr/configsets/" + configset; | ||
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| try { | ||
| logger.info("...creating solr core '" + core + "' with configset '" + configset + "'"); | ||
| restClient.get(uri); | ||
| } catch (RestAPIException e) { | ||
| logger.severe("Failed to init solr core '" + core + "' - " + e.getMessage()); | ||
| e.printStackTrace(); | ||
| } | ||
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| logger.info("...solr - URI=" + uri); | ||
| } | ||
|
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| } |
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