org.opencms.search.CmsSearchResult Maven / Gradle / Ivy
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/*
* 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.monitor.CmsMemoryMonitor;
import org.opencms.monitor.I_CmsMemoryMonitorable;
import org.opencms.search.fields.CmsSearchField;
import org.opencms.util.CmsStringUtil;
import java.text.ParseException;
import java.util.Date;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;
import org.apache.lucene.document.DateTools;
import org.apache.lucene.document.Document;
import org.apache.lucene.index.IndexableField;
/**
* Contains the data of a single item in a search result.
*
* @since 6.0.0
*/
public class CmsSearchResult implements I_CmsMemoryMonitorable, Comparable {
/** The creation date of this search result. */
protected Date m_dateCreated;
/** The last modification date of this search result. */
protected Date m_dateLastModified;
/** The document type of the search result. */
protected String m_documentType;
/** The excerpt of this search result. */
protected String m_excerpt;
/** Holds the values of the search result fields. */
protected Map m_fields;
/** The resource path of this search result. */
protected String m_path;
/** The score of this search result. */
protected int m_score;
/** Contains the pre-calculated memory size. */
private int m_memorySize;
/**
* Creates a new search result.
*
* @param score the score of this search result
* @param doc the Lucene document to extract fields from such as description, title, key words etc. pp.
* @param excerpt the excerpt of the search result's content
*/
public CmsSearchResult(int score, Document doc, String excerpt) {
m_score = score;
m_excerpt = excerpt;
m_fields = new HashMap();
Iterator i = doc.getFields().iterator();
while (i.hasNext()) {
IndexableField field = i.next();
// content can be displayed only if it has been stored in the field
String name = field.name();
String value = field.stringValue();
if (CmsStringUtil.isNotEmpty(value)
&& !CmsSearchField.FIELD_PATH.equals(name)
&& !CmsSearchField.FIELD_DATE_CREATED.equals(name)
&& !CmsSearchField.FIELD_DATE_LASTMODIFIED.equals(name)) {
// these "hard coded" fields are treated differently
m_fields.put(name, value);
}
}
IndexableField f = doc.getField(CmsSearchField.FIELD_PATH);
if (f != null) {
m_path = f.stringValue();
} else {
m_path = null;
}
f = doc.getField(CmsSearchField.FIELD_DATE_CREATED);
if (f != null) {
try {
m_dateCreated = DateTools.stringToDate(f.stringValue());
} catch (ParseException exc) {
m_dateCreated = null;
}
} else {
m_dateCreated = null;
}
f = doc.getField(CmsSearchField.FIELD_DATE_LASTMODIFIED);
if (f != null) {
try {
m_dateLastModified = DateTools.stringToDate(f.stringValue());
} catch (ParseException exc) {
m_dateLastModified = null;
}
} else {
m_dateLastModified = null;
}
f = doc.getField(CmsSearchField.FIELD_TYPE);
if (f != null) {
m_documentType = f.stringValue();
} else {
m_documentType = null;
}
}
/**
* Empty constructor to be used for overriding classes.
*/
protected CmsSearchResult() {
// noop
}
/**
* @see java.lang.Comparable#compareTo(java.lang.Object)
*/
public int compareTo(CmsSearchResult obj) {
if (obj == this) {
return 0;
}
return obj.m_score - m_score;
}
/**
* @see java.lang.Object#equals(java.lang.Object)
*/
@Override
public boolean equals(Object obj) {
if (obj == this) {
return true;
}
if (obj instanceof CmsSearchResult) {
CmsSearchResult other = (CmsSearchResult)obj;
return m_documentType.equals(other.m_documentType) && m_path.equals(other.m_path);
}
return false;
}
/**
* Returns the date created.
*
* @return the date created
*/
public Date getDateCreated() {
if (m_dateCreated != null) {
return (Date)m_dateCreated.clone();
}
return null;
}
/**
* Returns the date last modified.
*
* @return the date last modified
*/
public Date getDateLastModified() {
if (m_dateLastModified != null) {
return (Date)m_dateLastModified.clone();
}
return null;
}
/**
* Returns the description.
*
* @return the description
*
* @Deprecated use {@link #getField(String)} instead with the name of the field,
* for example use {@link org.opencms.search.fields.CmsLuceneField#FIELD_DESCRIPTION} to get the description (if available)
*/
public String getDescription() {
return getField(CmsSearchField.FIELD_DESCRIPTION);
}
/**
* Returns the document type of the search result document.
*
* Usually this will be a VFS resource type String that can be used in the
* resource type manager with {@link org.opencms.loader.CmsResourceManager#getResourceType(String)}.
* However, what is stored in the document type field depends only on the indexer used, and therefore it
* may also be some String not referring a VFS resource type but some external type or application.
* It may also be null in case it has not been set by a non-standard indexer.
*
* @return the document type of the search result document
*
* @see org.opencms.loader.CmsResourceManager#getResourceType(String)
*/
public String getDocumentType() {
return m_documentType;
}
/**
* Returns the excerpt.
*
* @return the excerpt
*/
public String getExcerpt() {
return m_excerpt;
}
/**
* Returns the text stored in the search index field with the given name.
*
* @param fieldName the name of the field to get the stored text for
*
* @return the text stored in the search index field with the given name
*/
public String getField(String fieldName) {
return m_fields.get(fieldName);
}
/**
* Returns the key words.
*
* @return the key words
*
* @Deprecated use {@link #getField(String)} instead with the name of the field,
* for example use {@link org.opencms.search.fields.CmsLuceneField#FIELD_KEYWORDS} to get the keywords (if available)
*/
public String getKeywords() {
return getField(CmsSearchField.FIELD_KEYWORDS);
}
/**
* @see org.opencms.monitor.I_CmsMemoryMonitorable#getMemorySize()
*/
public int getMemorySize() {
if (m_memorySize == 0) {
int result = 8;
if (m_dateCreated != null) {
result += CmsMemoryMonitor.getMemorySize(m_dateCreated);
}
if (m_dateLastModified != null) {
result += CmsMemoryMonitor.getMemorySize(m_dateLastModified);
}
if (m_path != null) {
result += CmsMemoryMonitor.getMemorySize(m_path);
}
if (m_fields != null) {
Iterator> entries = m_fields.entrySet().iterator();
while (entries.hasNext()) {
Map.Entry entry = entries.next();
result += CmsMemoryMonitor.getMemorySize(entry.getKey());
result += CmsMemoryMonitor.getMemorySize(entry.getValue());
}
}
if (m_excerpt != null) {
result += CmsMemoryMonitor.getMemorySize(m_excerpt);
}
m_memorySize = result;
}
return m_memorySize;
}
/**
* Returns the path.
*
* @return the path
*/
public String getPath() {
return m_path;
}
/**
* Returns the score.
*
* @return the score
*/
public int getScore() {
return m_score;
}
/**
* Returns the title.
*
* @return the title
*
* @Deprecated use {@link #getField(String)} instead with the name of the field,
* for example use {@link org.opencms.search.fields.CmsLuceneField#FIELD_TITLE} to get the title (if available)
*/
public String getTitle() {
return getField(CmsSearchField.FIELD_TITLE);
}
/**
* @see java.lang.Object#hashCode()
*/
@Override
public int hashCode() {
return (m_documentType.hashCode() * 1109) + m_path.hashCode();
}
}