com.openkm.module.jcr.JcrSearchModule.java Source code

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/**
 * OpenKM, Open Document Management System (http://www.openkm.com)
 * Copyright (c) 2006-2015 Paco Avila & Josep Llort
 * 
 * No bytes were intentionally harmed during the development of this application.
 * 
 * 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 should have received a copy of the GNU General Public License along
 * with this program; if not, write to the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 */

package com.openkm.module.jcr;

import java.io.IOException;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import java.util.Map.Entry;
import java.util.Set;

import javax.jcr.Node;
import javax.jcr.NodeIterator;
import javax.jcr.Property;
import javax.jcr.PropertyIterator;
import javax.jcr.Session;
import javax.jcr.Value;
import javax.jcr.Workspace;
import javax.jcr.query.Query;
import javax.jcr.query.QueryManager;
import javax.jcr.query.Row;
import javax.jcr.query.RowIterator;

import org.apache.commons.lang.NotImplementedException;
import org.apache.jackrabbit.JcrConstants;
import org.apache.jackrabbit.commons.query.GQL;
import org.apache.jackrabbit.core.query.QueryImpl;
import org.apache.jackrabbit.core.query.lucene.QueryResultImpl;
import org.apache.jackrabbit.util.ISO8601;
import org.apache.jackrabbit.util.ISO9075;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import com.openkm.bean.Document;
import com.openkm.bean.Folder;
import com.openkm.bean.Mail;
import com.openkm.bean.PropertyGroup;
import com.openkm.bean.QueryResult;
import com.openkm.bean.Repository;
import com.openkm.bean.ResultSet;
import com.openkm.bean.form.FormElement;
import com.openkm.bean.form.Input;
import com.openkm.bean.form.Select;
import com.openkm.core.AccessDeniedException;
import com.openkm.core.Config;
import com.openkm.core.DatabaseException;
import com.openkm.core.ParseException;
import com.openkm.core.PathNotFoundException;
import com.openkm.core.RepositoryException;
import com.openkm.dao.DashboardDAO;
import com.openkm.dao.QueryParamsDAO;
import com.openkm.dao.bean.QueryParams;
import com.openkm.module.SearchModule;
import com.openkm.module.jcr.base.BaseDocumentModule;
import com.openkm.module.jcr.base.BaseFolderModule;
import com.openkm.module.jcr.base.BaseMailModule;
import com.openkm.module.jcr.stuff.JCRUtils;
import com.openkm.module.jcr.stuff.JcrSessionManager;
import com.openkm.util.FormUtils;
import com.openkm.util.UserActivity;

public class JcrSearchModule implements SearchModule {
    private static Logger log = LoggerFactory.getLogger(JcrSearchModule.class);

    @Override
    public List<QueryResult> findByContent(String token, String words)
            throws IOException, ParseException, RepositoryException, DatabaseException {
        log.debug("findByContent({}, {})", token, words);
        QueryParams params = new QueryParams();
        params.setContent(words);
        List<QueryResult> ret = find(token, params);
        log.debug("findByContent: {}", ret);
        return ret;
    }

    @Override
    public List<QueryResult> findByName(String token, String words)
            throws IOException, ParseException, RepositoryException, DatabaseException {
        log.debug("findByName({}, {})", token, words);
        QueryParams params = new QueryParams();
        params.setName(words);
        List<QueryResult> ret = find(token, params);
        log.debug("findByName: {}", ret);
        return ret;
    }

    @Override
    public List<QueryResult> findByKeywords(String token, Set<String> words)
            throws IOException, ParseException, RepositoryException, DatabaseException {
        log.debug("findByKeywords({}, {})", token, words);
        QueryParams params = new QueryParams();
        params.setKeywords(words);
        List<QueryResult> ret = find(token, params);
        log.debug("findByKeywords: {}", ret);
        return ret;
    }

    @Override
    public List<QueryResult> find(String token, QueryParams params)
            throws IOException, ParseException, RepositoryException, DatabaseException {
        log.debug("find({}, {})", token, params);
        List<QueryResult> ret = findPaginated(token, params, 0, Config.MAX_SEARCH_RESULTS).getResults();
        log.debug("find: {}", ret);
        return ret;
    }

    @Override
    public ResultSet findPaginated(String token, QueryParams params, int offset, int limit)
            throws IOException, ParseException, RepositoryException, DatabaseException {
        log.debug("findPaginated({}, {}, {}, {})", new Object[] { token, params, offset, limit });
        String type = null;
        String query = null;

        if (!"".equals(params.getStatementQuery())
                && (Query.XPATH.equals(params.getStatementType()) || Query.SQL.equals(params.getStatementType()))) {
            query = params.getStatementQuery();
            type = params.getStatementType();
        } else {
            query = prepareStatement(params);
            type = Query.XPATH;
        }

        ResultSet rs = findByStatementPaginated(token, query, type, offset, limit);
        log.debug("findPaginated: {}", rs);
        return rs;
    }

    /**
     * Escape jcr:contains searchExp (view 6.6.5.2) Text.escapeIllegalXpathSearchChars(searchTerm).replaceAll("'", "''")
     * 
     * @see http
     *      ://svn.apache.org/repos/asf/jackrabbit/branches/2.2/jackrabbit-jcr-commons/src/main/java/org/apache/
     *      jackrabbit
     *      /util/Text.java
     * @see http://wiki.apache.org/jackrabbit/EncodingAndEscaping
     * @param str The String to be escaped.
     * @return The escaped String.
     */
    private String escapeContains(String str) {
        StringBuilder sb = new StringBuilder();

        for (int i = 0; i < str.length(); i++) {
            char c = str.charAt(i);

            if (c == '!' || c == '(' || c == ':' || c == '^' || c == '"' || c == '[' || c == ']' || c == '{'
                    || c == '}' || c == '?') {
                sb.append('\\');
            }

            sb.append(c);
        }

        return sb.toString().replace("'", "''");
    }

    /**
     * Escape XPath string
     * 
     * @see org.apache.jackrabbit.util.Text.escapeIllegalXpathSearchChars(String s)
     * @param str The String to be escaped.
     * @return The escaped String.
     */
    private String escapeXPath(String str) {
        String ret = str.replace("'", "''");
        return ret;
    }

    /**
     * Prepare statement
     */
    public String prepareStatement(QueryParams params) throws IOException, ParseException {
        log.debug("prepareStatement({})", params);
        StringBuilder sb = new StringBuilder();

        // Clean params
        params.setName(params.getName() != null ? params.getName().trim() : "");
        params.setContent(params.getContent() != null ? params.getContent().trim() : "");
        params.setKeywords(params.getKeywords() != null ? params.getKeywords() : new HashSet<String>());
        params.setCategories(params.getCategories() != null ? params.getCategories() : new HashSet<String>());
        params.setMimeType(params.getMimeType() != null ? params.getMimeType().trim() : "");
        params.setAuthor(params.getAuthor() != null ? params.getAuthor().trim() : "");
        params.setPath(params.getPath() != null ? params.getPath().trim() : "");
        params.setMailSubject(params.getMailSubject() != null ? params.getMailSubject().trim() : "");
        params.setMailFrom(params.getMailFrom() != null ? params.getMailFrom().trim() : "");
        params.setMailTo(params.getMailTo() != null ? params.getMailTo().trim() : "");
        params.setProperties(
                params.getProperties() != null ? params.getProperties() : new HashMap<String, String>());

        // Domains
        boolean document = (params.getDomain() & QueryParams.DOCUMENT) != 0;
        boolean folder = (params.getDomain() & QueryParams.FOLDER) != 0;
        boolean mail = (params.getDomain() & QueryParams.MAIL) != 0;
        log.debug("doc={}, fld={}, mail={}", new Object[] { document, folder, mail });

        // Escape
        if (!params.getName().equals("")) {
            params.setName(escapeContains(params.getName()));
        }

        if (!params.getContent().equals("")) {
            params.setContent(escapeContains(params.getContent()));
        }

        if (!params.getContent().isEmpty() || !params.getName().isEmpty() || !params.getKeywords().isEmpty()
                || !params.getMimeType().isEmpty() || !params.getAuthor().isEmpty()
                || !params.getProperties().isEmpty() || !params.getMailSubject().isEmpty()
                || !params.getMailFrom().isEmpty() || !params.getMailTo().isEmpty()
                || (params.getLastModifiedFrom() != null && params.getLastModifiedTo() != null)) {

            // Construct the query
            sb.append("/jcr:root" + ISO9075.encodePath(params.getPath()) + "//*[@jcr:primaryType eq 'okm:void'");

            /**
             * DOCUMENT
             */
            if (document) {
                sb.append(" or (@jcr:primaryType eq 'okm:document'");

                if (!params.getContent().equals("")) {
                    sb.append(" " + params.getOperator() + " ");
                    sb.append("jcr:contains(okm:content,'" + params.getContent() + "')");
                }

                if (!params.getName().equals("")) {
                    sb.append(" " + params.getOperator() + " ");
                    sb.append("jcr:contains(@okm:name,'" + params.getName() + "')");
                }

                if (!params.getKeywords().isEmpty()) {
                    for (Iterator<String> it = params.getKeywords().iterator(); it.hasNext();) {
                        sb.append(" " + params.getOperator() + " ");
                        sb.append("@okm:keywords='" + escapeContains(it.next()) + "'");
                    }
                }

                if (!params.getCategories().isEmpty()) {
                    for (Iterator<String> it = params.getCategories().iterator(); it.hasNext();) {
                        sb.append(" " + params.getOperator() + " ");
                        sb.append("@okm:categories='" + it.next() + "'");
                    }
                }

                if (!params.getMimeType().equals("")) {
                    sb.append(" " + params.getOperator() + " ");
                    sb.append("@okm:content/jcr:mimeType='" + params.getMimeType() + "'");
                }

                if (!params.getAuthor().equals("")) {
                    sb.append(" " + params.getOperator() + " ");
                    sb.append("@okm:content/okm:author='" + params.getAuthor() + "'");
                }

                if (params.getLastModifiedFrom() != null && params.getLastModifiedTo() != null) {
                    sb.append(" " + params.getOperator() + " ");
                    sb.append("(");
                    sb.append("@okm:content/jcr:lastModified >= xs:dateTime('"
                            + ISO8601.format(params.getLastModifiedFrom()) + "')");
                    sb.append(" and ");
                    sb.append("@okm:content/jcr:lastModified <= xs:dateTime('"
                            + ISO8601.format(params.getLastModifiedTo()) + "')");
                    sb.append(")");
                }

                sb.append(preparePropertyGroups(params));
                sb.append(")");
            }

            /**
             * FOLDER
             */
            if (folder) {
                sb.append(" or (@jcr:primaryType eq 'okm:folder'");

                if (!params.getName().equals("")) {
                    sb.append(" " + params.getOperator() + " ");
                    sb.append("jcr:contains(@okm:name,'" + params.getName() + "')");
                }

                if (!params.getKeywords().isEmpty()) {
                    for (Iterator<String> it = params.getKeywords().iterator(); it.hasNext();) {
                        sb.append(" " + params.getOperator() + " ");
                        sb.append("@okm:keywords='" + escapeContains(it.next()) + "'");
                    }
                }

                if (!params.getCategories().isEmpty()) {
                    for (Iterator<String> it = params.getCategories().iterator(); it.hasNext();) {
                        sb.append(" " + params.getOperator() + " ");
                        sb.append("@okm:categories='" + it.next() + "'");
                    }
                }

                if (params.getLastModifiedFrom() != null && params.getLastModifiedTo() != null) {
                    sb.append(" " + params.getOperator() + " ");
                    sb.append("(");
                    sb.append(
                            "@jcr:created >= xs:dateTime('" + ISO8601.format(params.getLastModifiedFrom()) + "')");
                    sb.append(" and ");
                    sb.append("@jcr:created <= xs:dateTime('" + ISO8601.format(params.getLastModifiedTo()) + "')");
                    sb.append(")");
                }

                sb.append(preparePropertyGroups(params));
                sb.append(")");
            }

            /**
             * MAIL
             */
            if (mail) {
                sb.append(" or (@jcr:primaryType eq 'okm:mail'");

                if (!params.getContent().equals("")) {
                    sb.append(" and jcr:contains(.,'" + params.getContent() + "')");
                }

                if (!params.getMailSubject().equals("")) {
                    sb.append(" " + params.getOperator() + " ");
                    sb.append("jcr:contains(@okm:subject,'" + params.getMailSubject() + "')");
                }

                if (!params.getMailFrom().equals("")) {
                    sb.append(" " + params.getOperator() + " ");
                    sb.append("jcr:contains(@okm:from,'" + params.getMailFrom() + "')");
                }

                if (!params.getMailTo().equals("")) {
                    sb.append(" " + params.getOperator() + " ");
                    sb.append("jcr:contains(@okm:to,'" + params.getMailTo() + "')");
                }

                if (!params.getMimeType().equals("")) {
                    sb.append(" " + params.getOperator() + " ");
                    sb.append("@okm:content/jcr:mimeType='" + params.getMimeType() + "'");
                }

                if (!params.getKeywords().isEmpty()) {
                    for (Iterator<String> it = params.getKeywords().iterator(); it.hasNext();) {
                        sb.append(" " + params.getOperator() + " ");
                        sb.append("@okm:keywords='" + escapeContains(it.next()) + "'");
                    }
                }

                if (!params.getCategories().isEmpty()) {
                    for (Iterator<String> it = params.getCategories().iterator(); it.hasNext();) {
                        sb.append(" " + params.getOperator() + " ");
                        sb.append("@okm:categories='" + it.next() + "'");
                    }
                }

                sb.append(preparePropertyGroups(params));
                sb.append(")");
            }

            sb.append("] order by @jcr:score descending");
        }

        log.debug("prepareStatement: {}", sb.toString());
        return sb.toString();
    }

    /**
     * Create XPath related to property groups.
     */
    private Object preparePropertyGroups(QueryParams params) throws IOException, ParseException {
        StringBuilder sb = new StringBuilder();

        if (!params.getProperties().isEmpty()) {
            Map<PropertyGroup, List<FormElement>> formsElements = FormUtils
                    .parsePropertyGroupsForms(Config.PROPERTY_GROUPS_XML);

            for (Iterator<Entry<String, String>> it = params.getProperties().entrySet().iterator(); it.hasNext();) {
                Entry<String, String> ent = it.next();
                FormElement fe = FormUtils.getFormElement(formsElements, ent.getKey());

                if (fe != null && ent.getValue() != null) {
                    String valueTrimmed = ent.getValue().trim();

                    if (!valueTrimmed.equals("")) {
                        sb.append(" " + params.getOperator() + " ");

                        if (fe instanceof Select) {
                            sb.append("@" + ent.getKey() + "='" + escapeXPath(valueTrimmed) + "'");
                        } else if (fe instanceof Input && ((Input) fe).getType().equals(Input.TYPE_DATE)) {
                            String[] date = valueTrimmed.split(",");

                            if (date.length == 2) {
                                sb.append("@" + ent.getKey() + " >= '" + date[0] + "'");
                                sb.append(" and ");
                                sb.append("@" + ent.getKey() + " <= '" + date[1] + "'");
                            }
                        } else {
                            sb.append("jcr:contains(@" + ent.getKey() + ",'" + escapeContains(valueTrimmed) + "')");
                        }
                    }
                }
            }
        }

        return sb.toString();
    }

    public List<QueryResult> findByStatement(String token, String statement, String type)
            throws RepositoryException, DatabaseException {
        log.debug("findByStatement({}, {})", token, statement);
        List<QueryResult> ret = findByStatementPaginated(token, statement, type, 0, Config.MAX_SEARCH_RESULTS)
                .getResults();
        log.debug("findByStatement: {}", ret);
        return ret;
    }

    public ResultSet findByStatementPaginated(String token, String statement, String type, int offset, int limit)
            throws RepositoryException, DatabaseException {
        log.debug("findByStatement({}, {}, {}, {}, {})", new Object[] { token, statement, type, offset, limit });
        ResultSet rs = new ResultSet();
        Session session = null;

        try {
            if (token == null) {
                session = JCRUtils.getSession();
            } else {
                session = JcrSessionManager.getInstance().get(token);
            }

            if (statement != null && !statement.equals("")) {
                Workspace workspace = session.getWorkspace();
                QueryManager queryManager = workspace.getQueryManager();
                Query query = queryManager.createQuery(statement, type);
                rs = executeQuery(session, query, offset, limit);
            }

            // Activity log
            UserActivity.log(session.getUserID(), "FIND_BY_STATEMENT", null, null, type + ", " + statement);
        } catch (javax.jcr.RepositoryException e) {
            log.error(e.getMessage(), e);
            throw new RepositoryException(e.getMessage(), e);
        } finally {
            if (token == null) {
                JCRUtils.logout(session);
            }
        }

        log.debug("findByStatement: {}", rs);
        return rs;
    }

    /**
     * Execute query
     */
    private ResultSet executeQuery(Session session, Query query, int offset, int limit) throws RepositoryException {
        log.debug("executeQuery({}, {}, {}, {})", new Object[] { session, query, offset, limit });
        ResultSet rs = new ResultSet();

        try {
            ArrayList<QueryResult> al = new ArrayList<QueryResult>();

            // http://n4.nabble.com/Query-performance-for-large-query-results-td531360.html
            ((QueryImpl) query).setLimit(limit);
            ((QueryImpl) query).setOffset(offset);
            QueryResultImpl result = (QueryResultImpl) query.execute();
            RowIterator rit = result.getRows();
            rs.setTotal(result.getTotalSize());

            while (rit.hasNext()) {
                Row row = rit.nextRow();
                QueryResult qr = queryRowResultDigester(session, row);
                al.add(qr);
            }

            rs.setResults(al);
        } catch (javax.jcr.RepositoryException e) {
            log.error(e.getMessage(), e);
            throw new RepositoryException(e.getMessage(), e);
        }

        log.debug("executeQuery: {}", rs);
        return rs;
    }

    /**
     * Execute simple query
     */
    private ResultSet executeSimpleQuery(Session session, String statement, int offset, int limit)
            throws RepositoryException {
        log.debug("executeSimpleQuery({}, {}, {}, {})", new Object[] { session, statement, offset, limit });
        ResultSet rs = new ResultSet();

        if (statement != null && !statement.equals("")) {
            if (!statement.contains("path:")) {
                statement = "path:\"/" + Repository.ROOT + "\" " + statement;
            }

            if (!statement.contains("limit:") && limit < Config.MAX_SEARCH_RESULTS) {
                StringBuilder sb = new StringBuilder();
                sb.append("limit:").append(offset).append("..").append(offset + limit);
                statement = statement.concat(" ").concat(sb.toString());
            }

            try {
                ArrayList<QueryResult> al = new ArrayList<QueryResult>();
                log.info("Statement: {}", statement);
                RowIterator rit = GQL.execute(statement, session);
                rs.setTotal(rit.getSize());

                while (rit.hasNext()) {
                    Row row = rit.nextRow();
                    QueryResult qr = queryRowResultDigester(session, row);
                    al.add(qr);
                }

                rs.setResults(al);
            } catch (javax.jcr.RepositoryException e) {
                log.error(e.getMessage(), e);
                throw new RepositoryException(e.getMessage(), e);
            }
        }

        log.debug("executeSimpleQuery: {}", rs);
        return rs;
    }

    /**
     * Convert Row to QueryResult
     */
    private QueryResult queryRowResultDigester(Session session, Row row)
            throws javax.jcr.PathNotFoundException, javax.jcr.RepositoryException {
        String path = row.getValue(JcrConstants.JCR_PATH).getString();
        log.debug("queryRowResultDigester: {}", path);
        Node node = session.getRootNode().getNode(path.substring(1));
        QueryResult qr = new QueryResult();

        if (node.isNodeType(Document.CONTENT_TYPE)) {
            Document doc = BaseDocumentModule.getProperties(session, node.getParent());
            qr.setDocument(doc);
        } else if (node.isNodeType(Document.TYPE)) {
            Document doc = BaseDocumentModule.getProperties(session, node);

            try {
                if (node.getParent().isNodeType(Mail.TYPE)) {
                    qr.setAttachment(doc);
                } else {
                    qr.setDocument(doc);
                }
            } catch (javax.jcr.AccessDeniedException e) {
                qr.setDocument(doc);
            }
        } else if (node.isNodeType(Folder.TYPE)) {
            Folder fld = BaseFolderModule.getProperties(session, node);
            qr.setFolder(fld);
        } else if (node.isNodeType(Mail.TYPE)) {
            Mail mail = BaseMailModule.getProperties(session, node);
            qr.setMail(mail);
        }

        qr.setScore(row.getValue(JcrConstants.JCR_SCORE).getLong());
        Value excerpt = row.getValue("rep:excerpt(okm:content)");

        if (excerpt != null) {
            qr.setExcerpt(excerpt.getString());
        }

        return qr;
    }

    @Override
    public long saveSearch(String token, QueryParams params)
            throws AccessDeniedException, RepositoryException, DatabaseException {
        log.debug("saveSearch({}, {})", token, params);
        Session session = null;
        long id = 0;

        if (Config.SYSTEM_READONLY) {
            throw new AccessDeniedException("System is in read-only mode");
        }

        try {
            // TODO This JCR Session could be removed
            if (token == null) {
                session = JCRUtils.getSession();
            } else {
                session = JcrSessionManager.getInstance().get(token);
            }

            params.setUser(session.getUserID());
            id = QueryParamsDAO.create(params);

            // Activity log
            UserActivity.log(session.getUserID(), "SAVE_SEARCH", params.getName(), null, params.toString());
        } catch (javax.jcr.RepositoryException e) {
            throw new RepositoryException(e.getMessage(), e);
        } catch (DatabaseException e) {
            throw e;
        } finally {
            if (token == null) {
                JCRUtils.logout(session);
            }
        }

        log.debug("saveSearch: {}", id);
        return id;
    }

    @Override
    public void updateSearch(String token, QueryParams params)
            throws AccessDeniedException, RepositoryException, DatabaseException {
        log.debug("updateSearch({}, {})", token, params);
        Session session = null;

        if (Config.SYSTEM_READONLY) {
            throw new AccessDeniedException("System is in read-only mode");
        }

        try {
            // TODO This JCR Session could be removed
            if (token == null) {
                session = JCRUtils.getSession();
            } else {
                session = JcrSessionManager.getInstance().get(token);
            }

            params.setUser(session.getUserID());
            QueryParamsDAO.update(params);

            // Activity log
            UserActivity.log(session.getUserID(), "UPDATE_SEARCH", params.getName(), null, params.toString());
        } catch (javax.jcr.RepositoryException e) {
            throw new RepositoryException(e.getMessage(), e);
        } catch (DatabaseException e) {
            throw e;
        } finally {
            if (token == null) {
                JCRUtils.logout(session);
            }
        }

        log.debug("updateSearch: void");
    }

    @Override
    public QueryParams getSearch(String token, int qpId)
            throws PathNotFoundException, RepositoryException, DatabaseException {
        log.debug("getSearch({}, {})", token, qpId);
        QueryParams qp = new QueryParams();
        Session session = null;

        try {
            // TODO This JCR Session could be removed
            if (token == null) {
                session = JCRUtils.getSession();
            } else {
                session = JcrSessionManager.getInstance().get(token);
            }

            qp = QueryParamsDAO.findByPk(qpId);

            // If this is a dashboard user search, dates are used internally
            if (qp.isDashboard()) {
                qp.setLastModifiedFrom(null);
                qp.setLastModifiedTo(null);
            }

            // Activity log
            UserActivity.log(session.getUserID(), "GET_SAVED_SEARCH", Integer.toString(qpId), null, qp.toString());
        } catch (javax.jcr.PathNotFoundException e) {
            log.warn(e.getMessage(), e);
            throw new PathNotFoundException(e.getMessage(), e);
        } catch (javax.jcr.RepositoryException e) {
            log.error(e.getMessage(), e);
            throw new RepositoryException(e.getMessage(), e);
        } finally {
            if (token == null) {
                JCRUtils.logout(session);
            }
        }

        log.debug("getSearch: {}", qp);
        return qp;
    }

    @Override
    public List<QueryParams> getAllSearchs(String token) throws RepositoryException, DatabaseException {
        log.debug("getAllSearchs({})", token);
        List<QueryParams> ret = new ArrayList<QueryParams>();
        Session session = null;

        try {
            // TODO This JCR Session could be removed
            if (token == null) {
                session = JCRUtils.getSession();
            } else {
                session = JcrSessionManager.getInstance().get(token);
            }

            List<QueryParams> qParams = QueryParamsDAO.findByUser(session.getUserID());

            for (Iterator<QueryParams> it = qParams.iterator(); it.hasNext();) {
                QueryParams qp = it.next();

                if (!qp.isDashboard()) {
                    ret.add(qp);
                }
            }

            // Activity log
            UserActivity.log(session.getUserID(), "GET_ALL_SEARCHS", null, null, null);
        } catch (javax.jcr.RepositoryException e) {
            throw new RepositoryException(e.getMessage(), e);
        } catch (DatabaseException e) {
            throw e;
        } finally {
            if (token == null) {
                JCRUtils.logout(session);
            }
        }

        log.debug("getAllSearchs: {}", ret);
        return ret;
    }

    @Override
    public void deleteSearch(String token, long qpId)
            throws AccessDeniedException, RepositoryException, DatabaseException {
        log.debug("deleteSearch({}, {})", token, qpId);
        Session session = null;

        if (Config.SYSTEM_READONLY) {
            throw new AccessDeniedException("System is in read-only mode");
        }

        try {
            // TODO This JCR Session could be removed
            if (token == null) {
                session = JCRUtils.getSession();
            } else {
                session = JcrSessionManager.getInstance().get(token);
            }

            QueryParams qp = QueryParamsDAO.findByPk(qpId);
            QueryParamsDAO.delete(qpId);

            // Purge visited nodes table
            if (qp.isDashboard()) {
                DashboardDAO.deleteVisitedNodes(session.getUserID(), qp.getName());
            }

            // Activity log
            UserActivity.log(session.getUserID(), "DELETE_SAVED_SEARCH", Long.toString(qpId), null, null);
        } catch (DatabaseException e) {
            log.warn(e.getMessage(), e);
            throw new RepositoryException(e.getMessage(), e);
        } catch (javax.jcr.RepositoryException e) {
            log.error(e.getMessage(), e);
            throw new RepositoryException(e.getMessage(), e);
        } finally {
            if (token == null) {
                JCRUtils.logout(session);
            }
        }

        log.debug("deleteSearch: void");
    }

    @Override
    public Map<String, Integer> getKeywordMap(String token, List<String> filter)
            throws RepositoryException, DatabaseException {
        log.debug("getKeywordMap({}, {})", token, filter);
        String statement = "/jcr:root//*[@jcr:primaryType eq 'okm:document' or @jcr:primaryType eq 'okm:mail' or @jcr:primaryType eq 'okm:folder']";
        HashMap<String, Integer> cloud = new HashMap<String, Integer>();
        Session session = null;

        try {
            if (token == null) {
                session = JCRUtils.getSession();
            } else {
                session = JcrSessionManager.getInstance().get(token);
            }

            Workspace workspace = session.getWorkspace();
            QueryManager queryManager = workspace.getQueryManager();
            Query query = queryManager.createQuery(statement, Query.XPATH);
            javax.jcr.query.QueryResult qResult = query.execute();

            for (NodeIterator nit = qResult.getNodes(); nit.hasNext();) {
                Node doc = nit.nextNode();
                Value[] keywordsValue = doc.getProperty(com.openkm.bean.Property.KEYWORDS).getValues();
                ArrayList<String> keywordCollection = new ArrayList<String>();

                for (int i = 0; i < keywordsValue.length; i++) {
                    keywordCollection.add(keywordsValue[i].getString());
                }

                if (filter != null && keywordCollection.containsAll(filter)) {
                    for (Iterator<String> it = keywordCollection.iterator(); it.hasNext();) {
                        String keyword = it.next();

                        if (!filter.contains(keyword)) {
                            Integer occurs = cloud.get(keyword) != null ? cloud.get(keyword) : 0;
                            cloud.put(keyword, occurs + 1);
                        }
                    }
                }
            }
        } catch (javax.jcr.RepositoryException e) {
            log.error(e.getMessage(), e);
            throw new RepositoryException(e.getMessage(), e);
        } finally {
            if (token == null) {
                JCRUtils.logout(session);
            }
        }

        log.debug("getKeywordMap: {}", cloud);
        return cloud;
    }

    @Override
    public List<Document> getCategorizedDocuments(String token, String categoryId)
            throws RepositoryException, DatabaseException {
        log.debug("getCategorizedDocuments({}, {})", token, categoryId);
        List<Document> documents = new ArrayList<Document>();
        Session session = null;

        try {
            if (token == null) {
                session = JCRUtils.getSession();
            } else {
                session = JcrSessionManager.getInstance().get(token);
            }

            Node category = session.getNodeByUUID(categoryId);

            for (PropertyIterator it = category.getReferences(); it.hasNext();) {
                Property refProp = it.nextProperty();

                if (com.openkm.bean.Property.CATEGORIES.equals(refProp.getName())) {
                    Node node = refProp.getParent();

                    if (node.isNodeType(Document.TYPE)) {
                        Document doc = BaseDocumentModule.getProperties(session, node);
                        documents.add(doc);
                    }
                }
            }
        } catch (javax.jcr.RepositoryException e) {
            log.error(e.getMessage(), e);
            throw new RepositoryException(e.getMessage(), e);
        } finally {
            if (token == null) {
                JCRUtils.logout(session);
            }
        }

        log.debug("getCategorizedDocuments: {}", documents);
        return documents;
    }

    @Override
    public List<Folder> getCategorizedFolders(String token, String categoryId)
            throws RepositoryException, DatabaseException {
        log.debug("getCategorizedFolders({}, {})", token, categoryId);
        List<Folder> folders = new ArrayList<Folder>();
        Session session = null;

        try {
            if (token == null) {
                session = JCRUtils.getSession();
            } else {
                session = JcrSessionManager.getInstance().get(token);
            }

            Node category = session.getNodeByUUID(categoryId);

            for (PropertyIterator it = category.getReferences(); it.hasNext();) {
                Property refProp = it.nextProperty();

                if (com.openkm.bean.Property.CATEGORIES.equals(refProp.getName())) {
                    Node node = refProp.getParent();

                    if (node.isNodeType(Folder.TYPE)) {
                        Folder fld = BaseFolderModule.getProperties(session, node);
                        folders.add(fld);
                    }
                }
            }
        } catch (javax.jcr.RepositoryException e) {
            log.error(e.getMessage(), e);
            throw new RepositoryException(e.getMessage(), e);
        } finally {
            if (token == null) {
                JCRUtils.logout(session);
            }
        }

        log.debug("getCategorizedFolders: {}", folders);
        return folders;
    }

    @Override
    public List<Mail> getCategorizedMails(String token, String categoryId)
            throws RepositoryException, DatabaseException {
        log.debug("getCategorizedMails({}, {})", token, categoryId);
        List<Mail> mails = new ArrayList<Mail>();
        Session session = null;

        try {
            if (token == null) {
                session = JCRUtils.getSession();
            } else {
                session = JcrSessionManager.getInstance().get(token);
            }

            Node category = session.getNodeByUUID(categoryId);

            for (PropertyIterator it = category.getReferences(); it.hasNext();) {
                Property refProp = it.nextProperty();

                if (com.openkm.bean.Property.CATEGORIES.equals(refProp.getName())) {
                    Node node = refProp.getParent();

                    if (node.isNodeType(Mail.TYPE)) {
                        Mail mail = BaseMailModule.getProperties(session, node);
                        mails.add(mail);
                    }
                }
            }
        } catch (javax.jcr.RepositoryException e) {
            log.error(e.getMessage(), e);
            throw new RepositoryException(e.getMessage(), e);
        } finally {
            if (token == null) {
                JCRUtils.logout(session);
            }
        }

        log.debug("getCategorizedMails: {}", mails);
        return mails;
    }

    @Override
    public List<Document> getDocumentsByKeyword(String token, String keyword)
            throws RepositoryException, DatabaseException {
        throw new NotImplementedException("getDocumentsByKeyword");
    }

    @Override
    public List<Folder> getFoldersByKeyword(String token, String keyword)
            throws RepositoryException, DatabaseException {
        throw new NotImplementedException("getFoldersByKeyword");
    }

    @Override
    public List<Mail> getMailsByKeyword(String token, String keyword)
            throws RepositoryException, DatabaseException {
        throw new NotImplementedException("getMailsByKeyword");
    }

    @Override
    public List<Document> getDocumentsByPropertyValue(String token, String group, String property, String value)
            throws RepositoryException, DatabaseException {
        throw new NotImplementedException("getDocumentsByPropertyValue");
    }

    @Override
    public List<Folder> getFoldersByPropertyValue(String token, String group, String property, String value)
            throws RepositoryException, DatabaseException {
        throw new NotImplementedException("getFoldersByPropertyValue");
    }

    @Override
    public List<Mail> getMailsByPropertyValue(String token, String group, String property, String value)
            throws RepositoryException, DatabaseException {
        throw new NotImplementedException("getMailsByPropertyValue");
    }

    @Override
    public List<QueryResult> findSimpleQuery(String token, String statement)
            throws RepositoryException, DatabaseException {
        log.debug("findSimpleQuery({}, {})", token, statement);
        List<QueryResult> ret = findSimpleQueryPaginated(token, statement, 0, Config.MAX_SEARCH_RESULTS)
                .getResults();
        log.debug("findSimpleQuery: {}", ret);
        return ret;

    }

    @Override
    public ResultSet findSimpleQueryPaginated(String token, String statement, int offset, int limit)
            throws RepositoryException, DatabaseException {
        log.debug("findSimpleQueryPaginated({}, {}, {}, {})", new Object[] { token, statement, offset, limit });
        ResultSet rs = new ResultSet();
        Session session = null;

        try {
            if (token == null) {
                session = JCRUtils.getSession();
            } else {
                session = JcrSessionManager.getInstance().get(token);
            }

            rs = executeSimpleQuery(session, statement, offset, limit);
        } catch (javax.jcr.RepositoryException e) {
            log.error(e.getMessage(), e);
            throw new RepositoryException(e.getMessage(), e);
        } finally {
            if (token == null) {
                JCRUtils.logout(session);
            }
        }

        log.debug("findSimpleQueryPaginated: {}", rs);
        return rs;
    }

    @Override
    public ResultSet findMoreLikeThis(String token, String uuid, int maxResults)
            throws RepositoryException, DatabaseException {
        throw new NotImplementedException("findMoreLikeThis");
    }
}