org.opencms.search.CmsIndexingThread Maven / Gradle / Ivy
Show all versions of opencms-core Show documentation
/*
* This library is part of OpenCms -
* the Open Source Content Management System
*
* Copyright (c) Alkacon Software GmbH & Co. KG (http://www.alkacon.com)
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* For further information about Alkacon Software GmbH & Co. KG, please see the
* company website: http://www.alkacon.com
*
* For further information about OpenCms, please see the
* project website: http://www.opencms.org
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
package org.opencms.search;
import org.opencms.file.CmsObject;
import org.opencms.file.CmsResource;
import org.opencms.main.CmsException;
import org.opencms.main.CmsLog;
import org.opencms.report.I_CmsReport;
import org.opencms.search.documents.CmsIndexNoContentException;
import org.opencms.search.documents.I_CmsDocumentFactory;
import org.apache.commons.logging.Log;
/**
* Implements the indexing method for a single resource as thread.
*
* The indexing of a single resource is wrapped into a thread
* in order to prevent the overall indexer from hanging.
*
* @since 6.0.0
*/
public class CmsIndexingThread extends Thread {
/** The log object for this class. */
private static final Log LOG = CmsLog.getLog(CmsIndexingThread.class);
/** The cms object. */
private CmsObject m_cms;
/** The counter to output for the report. */
private int m_count;
/** The current index. */
private I_CmsSearchIndex m_index;
/** The current report. */
private I_CmsReport m_report;
/** The resource to index. */
private CmsResource m_res;
/** The result document. */
private I_CmsSearchDocument m_result;
/** Flag, indicating if a default document for the resource should be created. */
private boolean m_addDefaultDocument = true;
/**
* Create a new indexing thread.
*
* @param cms the current OpenCms user context
* @param res the resource to index
* @param index the index to update the resource in
* @param count the report count
* @param report the report to write the output to
*/
public CmsIndexingThread(CmsObject cms, CmsResource res, I_CmsSearchIndex index, int count, I_CmsReport report) {
super("OpenCms: Indexing '" + res.getName() + "'");
m_cms = cms;
m_res = res;
m_index = index;
m_count = count;
m_report = report;
m_result = null;
}
/**
* Returns the document created by this indexer thread.
*
* In case the resource could not be indexed, null is returned.
*
* @return the document created by this indexer thread
*/
public I_CmsSearchDocument getResult() {
if ((null == m_result) && m_addDefaultDocument) {
if (LOG.isWarnEnabled()) {
LOG.warn(
"Creating default document without content for "
+ m_res.getRootPath()
+ " in index "
+ m_index.getName());
}
return createDefaultIndexDocument();
}
return m_result;
}
/**
* Starts the thread to index a single resource.
*
* @see java.lang.Runnable#run()
*/
@Override
public void run() {
// flag for logging in the "final" block
boolean docOk = false;
try {
// create the index document
m_result = createIndexDocument(m_cms, m_res, m_index, m_count, m_report);
docOk = true;
// check if the thread was interrupted
if (isInterrupted() && LOG.isDebugEnabled()) {
LOG.debug(
Messages.get().getBundle().key(Messages.LOG_ABANDONED_THREAD_FINISHED_1, m_res.getRootPath()));
}
} catch (CmsIndexNoContentException e) {
// Ignore exception caused by empty documents, so that the report is not messed up with error message
m_report.println(
org.opencms.report.Messages.get().container(org.opencms.report.Messages.RPT_OK_0),
I_CmsReport.FORMAT_OK);
} catch (Throwable exc) {
if (m_report != null) {
m_report.println(
org.opencms.report.Messages.get().container(org.opencms.report.Messages.RPT_FAILED_0),
I_CmsReport.FORMAT_ERROR);
m_report.println(
org.opencms.report.Messages.get().container(
org.opencms.report.Messages.RPT_ARGUMENT_1,
exc.toString()),
I_CmsReport.FORMAT_ERROR);
}
if (LOG.isErrorEnabled()) {
LOG.error(
Messages.get().getBundle().key(
Messages.ERR_INDEX_RESOURCE_FAILED_2,
m_res.getRootPath(),
m_index.getName()),
exc);
}
// set flag to avoid logging in finally block
docOk = true;
} finally {
if (!docOk) {
// apparently there was a Throwable that causes an issue
if (m_report != null) {
m_report.println(
org.opencms.report.Messages.get().container(org.opencms.report.Messages.RPT_FAILED_0),
I_CmsReport.FORMAT_ERROR);
m_report.println(
Messages.get().container(
Messages.ERR_INDEX_RESOURCE_FAILED_2,
m_res.getRootPath(),
m_index.getName()),
I_CmsReport.FORMAT_ERROR);
}
if (LOG.isErrorEnabled()) {
LOG.error(
Messages.get().getBundle().key(
Messages.ERR_INDEX_RESOURCE_FAILED_2,
m_res.getRootPath(),
m_index.getName()));
}
}
}
}
/**
* Creates a document for the resource without extracting the content. The aim is to get a content indexed,
* even if extraction runs into a timeout.
*
* @return the document for the resource generated if the content is discarded,
* i.e., only meta information are indexed.
*/
protected I_CmsSearchDocument createDefaultIndexDocument() {
try {
return m_index.getFieldConfiguration().createDocument(m_cms, m_res, m_index, null);
} catch (CmsException e) {
LOG.error(
"Default document for "
+ m_res.getRootPath()
+ " and index "
+ m_index.getName()
+ " could not be created.",
e);
return null;
}
}
/**
* Creates the search index document.
*
* @param cms the current OpenCms user context
* @param res the resource to index
* @param index the index to update the resource in
* @param count the report count
* @param report the report to write the output to
*
* @return the created search index document
*
* @throws CmsException in case of issues while creating the search index document
*/
protected I_CmsSearchDocument createIndexDocument(
CmsObject cms,
CmsResource res,
I_CmsSearchIndex index,
int count,
I_CmsReport report)
throws CmsException {
I_CmsSearchDocument result = null;
if (report != null) {
report.print(
org.opencms.report.Messages.get().container(
org.opencms.report.Messages.RPT_SUCCESSION_1,
String.valueOf(count)),
I_CmsReport.FORMAT_NOTE);
report.print(Messages.get().container(Messages.RPT_SEARCH_INDEXING_FILE_BEGIN_0), I_CmsReport.FORMAT_NOTE);
report.print(
org.opencms.report.Messages.get().container(
org.opencms.report.Messages.RPT_ARGUMENT_1,
report.removeSiteRoot(res.getRootPath())));
report.print(
org.opencms.report.Messages.get().container(org.opencms.report.Messages.RPT_DOTS_0),
I_CmsReport.FORMAT_DEFAULT);
}
if (m_index.excludeFromIndex(m_cms, m_res)) {
m_addDefaultDocument = false;
} else {
// resource is to be included in the index
I_CmsDocumentFactory documentFactory = index.getDocumentFactory(res);
if (documentFactory != null) {
// some resources e.g. JSP do not have a default document factory
if (LOG.isDebugEnabled()) {
LOG.debug(
Messages.get().getBundle().key(
Messages.LOG_INDEXING_WITH_FACTORY_2,
res.getRootPath(),
documentFactory.getName()));
}
// create the document
result = documentFactory.createDocument(cms, res, index);
} else {
m_addDefaultDocument = false;
}
}
if (result == null) {
// this resource is not contained in the given search index or locale did not match
if (report != null) {
report.println(
org.opencms.report.Messages.get().container(org.opencms.report.Messages.RPT_SKIPPED_0),
I_CmsReport.FORMAT_NOTE);
}
if (LOG.isDebugEnabled()) {
LOG.debug(Messages.get().getBundle().key(Messages.LOG_SKIPPED_1, res.getRootPath()));
}
} else {
// index document was successfully created
if ((m_report != null)) {
m_report.println(
org.opencms.report.Messages.get().container(org.opencms.report.Messages.RPT_OK_0),
I_CmsReport.FORMAT_OK);
}
}
return result;
}
}