/*
* This library is part of OpenCms -
* the Open Source Content Management System
*
* Copyright (c) Alkacon Software GmbH (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, 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.documents;
import org.opencms.file.CmsFile;
import org.opencms.file.CmsObject;
import org.opencms.file.CmsResource;
import org.opencms.file.types.CmsResourceTypeXmlContent;
import org.opencms.file.types.I_CmsResourceType;
import org.opencms.main.CmsException;
import org.opencms.main.OpenCms;
import org.opencms.search.CmsIndexException;
import org.opencms.search.CmsSearchIndex;
import org.opencms.search.extractors.CmsExtractionResult;
import org.opencms.search.extractors.I_CmsExtractionResult;
import org.opencms.util.CmsStringUtil;
import org.opencms.xml.A_CmsXmlDocument;
import org.opencms.xml.content.CmsXmlContentFactory;
import org.opencms.xml.types.I_CmsXmlContentValue;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import java.util.Locale;
import java.util.Map;
/**
* Lucene document factory class to extract index data from an OpenCms VFS resource
* of type <code>CmsResourceTypeXmlContent</code>.<p>
*
* All XML nodes from the content for all locales will be stored separately in the item map
* which you can access using {@link CmsExtractionResult#getContentItems()}. The XML elements will be
* accessible using their xpath. The xpath will have the form like for example
* <code>Text[1]</code> or <code>Nested[1]/Text[1]</code>.<p>
*
* @since 6.0.0
*/
public class CmsDocumentXmlContent extends A_CmsVfsDocument {
/**
* Creates a new instance of this lucene document factory.<p>
*
* @param name name of the document type
*/
public CmsDocumentXmlContent(String name) {
super(name);
}
/**
* Returns the raw text content of a given VFS resource of type <code>CmsResourceTypeXmlContent</code>.<p>
*
* All XML nodes from the content for all locales will be stored separately in the item map
* which you can access using {@link CmsExtractionResult#getContentItems()}. The XML elements will be
* accessible using their xpath. The xpath will have the form like for example
* <code>Text[1]</code> or <code>Nested[1]/Text[1]</code>.<p>
*
* @see org.opencms.search.documents.I_CmsSearchExtractor#extractContent(CmsObject, CmsResource, CmsSearchIndex)
*/
public I_CmsExtractionResult extractContent(CmsObject cms, CmsResource resource, CmsSearchIndex index)
throws CmsException {
logContentExtraction(resource, index);
try {
CmsFile file = readFile(cms, resource);
A_CmsXmlDocument xmlContent = CmsXmlContentFactory.unmarshal(cms, file);
Locale locale = index.getLocaleForResource(cms, resource, xmlContent.getLocales());
List<String> elements = xmlContent.getNames(locale);
StringBuffer content = new StringBuffer();
Map<String, String> items = new HashMap<String, String>();
for (Iterator<String> i = elements.iterator(); i.hasNext();) {
String xpath = i.next();
// xpath will have the form "Text[1]" or "Nested[1]/Text[1]"
I_CmsXmlContentValue value = xmlContent.getValue(xpath, locale);
if (value.getContentDefinition().getContentHandler().isSearchable(value)) {
// the content value is searchable
String extracted = value.getPlainText(cms);
if (CmsStringUtil.isNotEmptyOrWhitespaceOnly(extracted)) {
items.put(xpath, extracted);
content.append(extracted);
content.append('\n');
}
}
}
return new CmsExtractionResult(content.toString(), items);
} catch (Exception e) {
throw new CmsIndexException(
Messages.get().container(Messages.ERR_TEXT_EXTRACTION_1, resource.getRootPath()),
e);
}
}
/**
* @see org.opencms.search.documents.I_CmsDocumentFactory#getDocumentKeys(java.util.List, java.util.List)
*/
@Override
public List<String> getDocumentKeys(List<String> resourceTypes, List<String> mimeTypes) throws CmsException {
if (resourceTypes.contains("*")) {
// we need to find all configured XML content types
List<String> allTypes = new ArrayList<String>();
for (Iterator<I_CmsResourceType> i = OpenCms.getResourceManager().getResourceTypes().iterator(); i.hasNext();) {
I_CmsResourceType resourceType = i.next();
if ((resourceType instanceof CmsResourceTypeXmlContent)
// either we need a configured schema, or another class name (which must then contain an inline schema)
&& (((CmsResourceTypeXmlContent)resourceType).getConfiguration().containsKey(
CmsResourceTypeXmlContent.CONFIGURATION_SCHEMA) || !CmsResourceTypeXmlContent.class.equals(resourceType.getClass()))) {
// add the XML content resource type name
allTypes.add(resourceType.getTypeName());
}
}
resourceTypes = allTypes;
}
return super.getDocumentKeys(resourceTypes, mimeTypes);
}
/**
* @see org.opencms.search.documents.I_CmsDocumentFactory#isLocaleDependend()
*/
public boolean isLocaleDependend() {
return true;
}
/**
* @see org.opencms.search.documents.I_CmsDocumentFactory#isUsingCache()
*/
public boolean isUsingCache() {
return true;
}
}