mirror of
https://github.com/Alfresco/alfresco-community-repo.git
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bde2b2e293
- minor: push down common method lookup code git-svn-id: https://svn.alfresco.com/repos/alfresco-enterprise/alfresco/HEAD/root@28640 c4b6b30b-aa2e-2d43-bbcb-ca4b014f7261
727 lines
27 KiB
Java
727 lines
27 KiB
Java
/*
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* Copyright (C) 2005-2011 Alfresco Software Limited.
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*
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* This file is part of Alfresco
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*
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* Alfresco is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* Alfresco is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with Alfresco. If not, see <http://www.gnu.org/licenses/>.
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*/
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package org.alfresco.repo.node.getchildren;
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import java.io.Serializable;
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import java.text.Collator;
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import java.util.ArrayList;
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import java.util.Collections;
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import java.util.Comparator;
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import java.util.Date;
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import java.util.HashMap;
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import java.util.HashSet;
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import java.util.LinkedList;
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import java.util.List;
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import java.util.Map;
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import java.util.Set;
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import org.alfresco.error.AlfrescoRuntimeException;
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import org.alfresco.model.ContentModel;
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import org.alfresco.query.CannedQueryParameters;
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import org.alfresco.query.CannedQuerySortDetails;
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import org.alfresco.query.PagingResults;
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import org.alfresco.query.CannedQuerySortDetails.SortOrder;
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import org.alfresco.repo.domain.node.AuditablePropertiesEntity;
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import org.alfresco.repo.domain.node.Node;
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import org.alfresco.repo.domain.node.NodeDAO;
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import org.alfresco.repo.domain.node.NodeEntity;
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import org.alfresco.repo.domain.node.NodePropertyEntity;
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import org.alfresco.repo.domain.node.NodePropertyHelper;
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import org.alfresco.repo.domain.node.NodePropertyKey;
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import org.alfresco.repo.domain.node.NodePropertyValue;
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import org.alfresco.repo.domain.node.ReferenceablePropertiesEntity;
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import org.alfresco.repo.domain.qname.QNameDAO;
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import org.alfresco.repo.domain.query.CannedQueryDAO;
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import org.alfresco.repo.node.getchildren.FilterPropString.FilterTypeString;
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import org.alfresco.repo.security.permissions.impl.acegi.AbstractCannedQueryPermissions;
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import org.alfresco.repo.security.permissions.impl.acegi.MethodSecurityInterceptor;
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import org.alfresco.repo.security.permissions.impl.acegi.WrappedList;
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import org.alfresco.repo.tenant.TenantService;
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import org.alfresco.service.cmr.repository.ContentData;
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import org.alfresco.service.cmr.repository.InvalidNodeRefException;
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import org.alfresco.service.cmr.repository.MLText;
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import org.alfresco.service.cmr.repository.NodeRef;
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import org.alfresco.service.cmr.repository.datatype.DefaultTypeConverter;
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import org.alfresco.service.namespace.QName;
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import org.alfresco.util.Pair;
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import org.alfresco.util.ParameterCheck;
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import org.apache.commons.logging.Log;
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import org.apache.commons.logging.LogFactory;
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/**
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* GetChidren canned query
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*
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* To get paged list of children of a parent node filtered by child type.
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* Also optionally filtered and/or sorted by one or more properties (up to three).
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*
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* @author janv
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* @since 4.0
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*/
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public class GetChildrenCannedQuery extends AbstractCannedQueryPermissions<NodeRef>
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{
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private Log logger = LogFactory.getLog(getClass());
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private static final String QUERY_NAMESPACE = "alfresco.node";
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private static final String QUERY_SELECT_GET_CHILDREN_WITH_PROPS = "select_GetChildrenCannedQueryWithProps";
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private static final String QUERY_SELECT_GET_CHILDREN_WITHOUT_PROPS = "select_GetChildrenCannedQueryWithoutProps";
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public static final int MAX_FILTER_SORT_PROPS = 3;
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// note: speical qnames - originally from Share DocLib default config (however, we do not support arbitrary "fts-alfresco" special sortable fields)
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public static final QName SORT_QNAME_CONTENT_SIZE = QName.createQName("http://www.alfresco.org/model/content/1.0", "content.size");
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public static final QName SORT_QNAME_CONTENT_MIMETYPE = QName.createQName("http://www.alfresco.org/model/content/1.0", "content.mimetype");
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public static final QName SORT_QNAME_NODE_TYPE = QName.createQName("", "TYPE");
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private NodeDAO nodeDAO;
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private QNameDAO qnameDAO;
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private CannedQueryDAO cannedQueryDAO;
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private NodePropertyHelper nodePropertyHelper;
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private TenantService tenantService;
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private boolean applyPostQueryPermissions = false; // if true, the permissions will be applied post-query (else should be applied as part of the "queryAndFilter")
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public GetChildrenCannedQuery(
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NodeDAO nodeDAO,
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QNameDAO qnameDAO,
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CannedQueryDAO cannedQueryDAO,
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NodePropertyHelper nodePropertyHelper,
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TenantService tenantService,
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MethodSecurityInterceptor methodSecurityInterceptor,
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Object methodService,
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String methodName,
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CannedQueryParameters params,
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String queryExecutionId)
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{
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super(params, queryExecutionId, methodSecurityInterceptor, methodService, methodName);
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this.nodeDAO = nodeDAO;
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this.qnameDAO = qnameDAO;
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this.cannedQueryDAO = cannedQueryDAO;
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this.nodePropertyHelper = nodePropertyHelper;
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this.tenantService = tenantService;
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if ((params.getSortDetails() != null) && (params.getSortDetails().getSortPairs().size() > 0))
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{
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applyPostQueryPermissions = true;
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}
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// TODO refactor (only apply post query if sorted - as above)
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GetChildrenCannedQueryParams paramBean = (GetChildrenCannedQueryParams)params.getParameterBean();
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if ((paramBean.getFilterProps()!= null) && (paramBean.getFilterProps().size() > 0))
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{
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applyPostQueryPermissions = true;
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}
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}
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@Override
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protected List<NodeRef> queryAndFilter(CannedQueryParameters parameters)
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{
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Long start = (logger.isDebugEnabled() ? System.currentTimeMillis() : null);
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// Get parameters
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GetChildrenCannedQueryParams paramBean = (GetChildrenCannedQueryParams)parameters.getParameterBean();
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// Get parent node
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NodeRef parentRef = paramBean.getParentRef();
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ParameterCheck.mandatory("nodeRef", parentRef);
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Pair<Long, NodeRef> nodePair = nodeDAO.getNodePair(parentRef);
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if (nodePair == null)
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{
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throw new InvalidNodeRefException("Parent node does not exist: " + parentRef, parentRef);
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}
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Long parentNodeId = nodePair.getFirst();
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// Set query params - note: currently using SortableChildEntity to hold (supplemental-) query params
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FilterSortNodeEntity params = new FilterSortNodeEntity();
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// Set parent node id
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params.setParentNodeId(parentNodeId);
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// Get filter details
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Set<QName> childNodeTypeQNames = paramBean.getChildTypeQNames();
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final List<FilterProp> filterProps = paramBean.getFilterProps();
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// Get sort details
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CannedQuerySortDetails sortDetails = parameters.getSortDetails();
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@SuppressWarnings("unchecked")
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final List<Pair<QName, SortOrder>> sortPairs = (List)sortDetails.getSortPairs();
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// Set sort / filter params
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Set<QName> sortFilterProps = new HashSet<QName>(filterProps.size() + sortPairs.size());
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for (FilterProp filter : filterProps)
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{
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sortFilterProps.add(filter.getPropName());
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}
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for (Pair<QName, SortOrder> sort : sortPairs)
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{
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sortFilterProps.add(sort.getFirst());
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}
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int filterSortPropCnt = sortFilterProps.size();
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if (filterSortPropCnt > MAX_FILTER_SORT_PROPS)
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{
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throw new AlfrescoRuntimeException("GetChildren: exceeded maximum number filter/sort properties: (max="+MAX_FILTER_SORT_PROPS+", actual="+filterSortPropCnt);
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}
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filterSortPropCnt = setFilterSortParams(sortFilterProps, params);
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// Set child node type qnames (additional filter - performed by DB query)
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if (childNodeTypeQNames != null)
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{
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Set<Long> childNodeTypeQNameIds = qnameDAO.convertQNamesToIds(childNodeTypeQNames, false);
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if (childNodeTypeQNameIds.size() > 0)
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{
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params.setChildNodeTypeQNameIds(new ArrayList<Long>(childNodeTypeQNameIds));
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}
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}
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final List<NodeRef> result;
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if (filterSortPropCnt > 0)
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{
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// filtered and/or sorted - note: permissions will be applied post query
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final List<FilterSortNode> children = new ArrayList<FilterSortNode>(100);
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final boolean applyFilter = (filterProps.size() > 0);
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FilterSortChildQueryCallback callback = new FilterSortChildQueryCallback()
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{
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public boolean handle(FilterSortNode node)
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{
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// filter, if needed
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if ((! applyFilter) || includeFilter(node.getPropVals(), filterProps))
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{
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children.add(node);
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}
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// More results
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return true;
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}
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};
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FilterSortResultHandler resultHandler = new FilterSortResultHandler(callback);
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cannedQueryDAO.executeQuery(QUERY_NAMESPACE, QUERY_SELECT_GET_CHILDREN_WITH_PROPS, params, 0, Integer.MAX_VALUE, resultHandler);
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resultHandler.done();
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if (sortPairs.size() > 0)
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{
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// sort
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Collections.sort(children, new PropComparatorAsc(sortPairs));
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}
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result = new ArrayList<NodeRef>(children.size());
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for (FilterSortNode child : children)
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{
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result.add(tenantService.getBaseName(child.getNodeRef()));
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}
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}
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else
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{
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// unsorted (apart from any implicit order) - note: permissions are applied during result handling to allow early cutoff
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int requestedCount = parameters.getPageDetails().getResultsRequiredForPaging();
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int requestTotalCountMax = getParameters().requestTotalResultCountMax();
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if ((requestTotalCountMax > 0) && (requestTotalCountMax > requestedCount))
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{
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requestedCount = requestTotalCountMax;
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}
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if (requestedCount != Integer.MAX_VALUE)
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{
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requestedCount++; // add one for "hasMoreItems"
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}
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final WrappedList<NodeRef> rawResult = new WrappedList<NodeRef>(new ArrayList<NodeRef>(100), requestedCount);
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UnsortedChildQueryCallback callback = new UnsortedChildQueryCallback()
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{
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public boolean handle(NodeRef nodeRef)
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{
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rawResult.add(tenantService.getBaseName(nodeRef));
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// More results ?
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return (rawResult.size() < rawResult.getMaxChecks());
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}
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};
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UnsortedResultHandler resultHandler = new UnsortedResultHandler(callback, parameters.getAuthenticationToken());
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cannedQueryDAO.executeQuery(QUERY_NAMESPACE, QUERY_SELECT_GET_CHILDREN_WITHOUT_PROPS, params, 0, Integer.MAX_VALUE, resultHandler);
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resultHandler.done();
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// permissions have been applied
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result = new WrappedList<NodeRef>(rawResult.getWrapped(), true, (rawResult.size() == requestedCount));
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}
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if (start != null)
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{
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logger.debug("Base query "+(filterSortPropCnt > 0 ? "(sort=y, perms=n)" : "(sort=n, perms=y)")+": "+result.size()+" in "+(System.currentTimeMillis()-start)+" msecs");
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}
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return result;
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}
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// Set filter/sort props (between 0 and 3)
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private int setFilterSortParams(Set<QName> filterSortProps, FilterSortNodeEntity params)
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{
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int cnt = 0;
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for (QName filterSortProp : filterSortProps)
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{
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if (AuditablePropertiesEntity.getAuditablePropertyQNames().contains(filterSortProp))
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{
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params.setAuditableProps(true);
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}
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else if (filterSortProp.equals(SORT_QNAME_NODE_TYPE))
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{
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params.setNodeType(true);
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}
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else
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{
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Long sortQNameId = getQNameId(filterSortProp);
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if (sortQNameId != null)
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{
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if (cnt == 0)
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{
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params.setProp1qnameId(sortQNameId);
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}
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else if (cnt == 1)
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{
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params.setProp2qnameId(sortQNameId);
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}
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else if (cnt == 2)
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{
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params.setProp3qnameId(sortQNameId);
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}
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else
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{
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// belts and braces
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throw new AlfrescoRuntimeException("GetChildren: unexpected - cannot set sort parameter: "+cnt);
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}
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}
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else
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{
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logger.warn("Skipping filter/sort param - cannot find: "+filterSortProp);
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break;
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}
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}
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cnt++;
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}
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return cnt;
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}
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private Long getQNameId(QName sortPropQName)
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{
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if (sortPropQName.equals(SORT_QNAME_CONTENT_SIZE) || sortPropQName.equals(SORT_QNAME_CONTENT_MIMETYPE))
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{
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sortPropQName = ContentModel.PROP_CONTENT;
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}
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Pair<Long, QName> qnamePair = qnameDAO.getQName(sortPropQName);
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return (qnamePair == null ? null : qnamePair.getFirst());
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}
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@Override
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protected boolean isApplyPostQuerySorting()
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{
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// note: sorted as part of the query impl (using SortableNode results)
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return false;
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}
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private class PropComparatorAsc implements Comparator<FilterSortNode>
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{
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private List<Pair<QName, SortOrder>> sortProps;
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private Collator collator;
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public PropComparatorAsc(List<Pair<QName, SortOrder>> sortProps)
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{
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this.sortProps = sortProps;
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this.collator = Collator.getInstance(); // note: currently default locale
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}
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public int compare(FilterSortNode n1, FilterSortNode n2)
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{
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return compareImpl(n1, n2, sortProps);
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}
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private int compareImpl(FilterSortNode node1In, FilterSortNode node2In, List<Pair<QName, SortOrder>> sortProps)
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{
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Object pv1 = null;
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Object pv2 = null;
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QName sortPropQName = (QName)sortProps.get(0).getFirst();
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boolean sortAscending = (sortProps.get(0).getSecond() == SortOrder.ASCENDING);
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FilterSortNode node1 = node1In;
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FilterSortNode node2 = node2In;
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if (sortAscending == false)
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{
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node1 = node2In;
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node2 = node1In;
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}
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int result = 0;
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pv1 = node1.getVal(sortPropQName);
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pv2 = node2.getVal(sortPropQName);
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if (pv1 == null)
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{
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return (pv2 == null ? 0 : -1);
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}
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else if (pv2 == null)
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{
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return 1;
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}
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if (pv1 instanceof String)
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{
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result = collator.compare((String)pv1, (String)pv2); // TODO use collation keys (re: performance)
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}
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else if (pv1 instanceof Date)
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{
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result = (((Date)pv1).compareTo((Date)pv2));
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}
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else if (pv1 instanceof Long)
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{
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result = (((Long)pv1).compareTo((Long)pv2));
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}
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else if (pv1 instanceof QName)
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{
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result = (((QName)pv1).compareTo((QName)pv2));
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}
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else
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{
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// TODO other comparisons
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throw new RuntimeException("Unsupported sort type: "+pv1.getClass().getName());
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}
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if ((result == 0) && (sortProps.size() > 1))
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{
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return compareImpl(node1In, node2In, sortProps.subList(1, sortProps.size()));
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}
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return result;
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}
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}
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// note: currently inclusive and OR-based
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private boolean includeFilter(Map<QName, Serializable> propVals, List<FilterProp> filterProps)
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{
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for (FilterProp filterProp : filterProps)
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{
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Serializable propVal = propVals.get(filterProp.getPropName());
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if (propVal != null)
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{
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if ((filterProp instanceof FilterPropString) && (propVal instanceof String))
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{
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String val = (String)propVal;
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String filter = (String)filterProp.getPropVal();
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switch ((FilterTypeString)filterProp.getFilterType())
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{
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case STARTSWITH:
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if (val.startsWith(filter))
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{
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return true;
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}
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break;
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case STARTSWITH_IGNORECASE:
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if (val.toLowerCase().startsWith(filter.toLowerCase()))
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{
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return true;
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}
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break;
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case EQUALS:
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if (val.equals(filter))
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{
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return true;
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}
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break;
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case EQUALS_IGNORECASE:
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if (val.equalsIgnoreCase(filter))
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{
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return true;
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}
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break;
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default:
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}
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}
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}
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}
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return false;
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}
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@Override
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protected boolean isApplyPostQueryPermissions()
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{
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return applyPostQueryPermissions; // true if sorted (if unsorted then permissions are applied as part of the query impl)
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}
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@Override
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protected PagingResults<NodeRef> applyPostQueryPermissions(List<NodeRef> results, String authenticationToken, int requestedCount)
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{
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Long start = (logger.isDebugEnabled() ? System.currentTimeMillis() : null);
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int requestTotalCountMax = getParameters().requestTotalResultCountMax();
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int maxChecks = (((requestTotalCountMax > 0) && (requestTotalCountMax > requestedCount)) ? requestTotalCountMax : requestedCount);
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int cnt = results.size();
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int toIdx = (maxChecks > cnt ? cnt : maxChecks);
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// note: assume user has read access to most/majority of the items hence pre-load up to max checks
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preload(results.subList(0, toIdx));
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PagingResults<NodeRef> ret = super.applyPostQueryPermissions(results, authenticationToken, requestedCount);
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if (start != null)
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{
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logger.debug("Post-query perms: "+ret.getPage().size()+" in "+(System.currentTimeMillis()-start)+" msecs");
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
private void preload(List<NodeRef> nodeRefs)
|
|
{
|
|
Long start = (logger.isTraceEnabled() ? System.currentTimeMillis() : null);
|
|
|
|
nodeDAO.cacheNodes(nodeRefs);
|
|
|
|
if (start != null)
|
|
{
|
|
logger.trace("Pre-load: "+nodeRefs.size()+" in "+(System.currentTimeMillis()-start)+" msecs");
|
|
}
|
|
}
|
|
|
|
private interface FilterSortChildQueryCallback
|
|
{
|
|
boolean handle(FilterSortNode node);
|
|
}
|
|
|
|
private interface UnsortedChildQueryCallback
|
|
{
|
|
boolean handle(NodeRef nodeRef);
|
|
}
|
|
|
|
private class FilterSortResultHandler implements CannedQueryDAO.ResultHandler<FilterSortNodeEntity>
|
|
{
|
|
private final FilterSortChildQueryCallback resultsCallback;
|
|
private boolean more = true;
|
|
|
|
private FilterSortResultHandler(FilterSortChildQueryCallback resultsCallback)
|
|
{
|
|
this.resultsCallback = resultsCallback;
|
|
}
|
|
|
|
public boolean handleResult(FilterSortNodeEntity result)
|
|
{
|
|
// Do nothing if no further results are required
|
|
if (!more)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
Node node = result.getNode();
|
|
NodeRef nodeRef = node.getNodeRef();
|
|
|
|
Map<NodePropertyKey, NodePropertyValue> propertyValues = new HashMap<NodePropertyKey, NodePropertyValue>(3);
|
|
|
|
NodePropertyEntity prop1 = result.getProp1();
|
|
if (prop1 != null)
|
|
{
|
|
propertyValues.put(prop1.getKey(), prop1.getValue());
|
|
}
|
|
|
|
NodePropertyEntity prop2 = result.getProp2();
|
|
if (prop2 != null)
|
|
{
|
|
propertyValues.put(prop2.getKey(), prop2.getValue());
|
|
}
|
|
|
|
NodePropertyEntity prop3 = result.getProp3();
|
|
if (prop3 != null)
|
|
{
|
|
propertyValues.put(prop3.getKey(), prop3.getValue());
|
|
}
|
|
|
|
Map<QName, Serializable> propVals = nodePropertyHelper.convertToPublicProperties(propertyValues);
|
|
|
|
// Add referenceable / spoofed properties (including spoofed name if null)
|
|
ReferenceablePropertiesEntity.addReferenceableProperties(node, propVals);
|
|
|
|
// special cases
|
|
|
|
// MLText (eg. cm:title, cm:description, ...)
|
|
for (Map.Entry<QName, Serializable> entry : propVals.entrySet())
|
|
{
|
|
if (entry.getValue() instanceof MLText)
|
|
{
|
|
propVals.put(entry.getKey(), DefaultTypeConverter.INSTANCE.convert(String.class, (MLText)entry.getValue()));
|
|
}
|
|
}
|
|
|
|
// ContentData (eg. cm:content.size, cm:content.mimetype)
|
|
ContentData contentData = (ContentData)propVals.get(ContentModel.PROP_CONTENT);
|
|
if (contentData != null)
|
|
{
|
|
propVals.put(SORT_QNAME_CONTENT_SIZE, contentData.getSize());
|
|
propVals.put(SORT_QNAME_CONTENT_MIMETYPE, contentData.getMimetype());
|
|
}
|
|
|
|
// Auditable props (eg. cm:creator, cm:created, cm:modifier, cm:modified, ...)
|
|
AuditablePropertiesEntity auditableProps = node.getAuditableProperties();
|
|
if (auditableProps != null)
|
|
{
|
|
for (Map.Entry<QName, Serializable> entry : auditableProps.getAuditableProperties().entrySet())
|
|
{
|
|
propVals.put(entry.getKey(), entry.getValue());
|
|
}
|
|
}
|
|
|
|
// Node type
|
|
Long nodeTypeQNameId = node.getTypeQNameId();
|
|
if (nodeTypeQNameId != null)
|
|
{
|
|
Pair<Long, QName> pair = qnameDAO.getQName(nodeTypeQNameId);
|
|
if (pair != null)
|
|
{
|
|
propVals.put(SORT_QNAME_NODE_TYPE, pair.getSecond());
|
|
}
|
|
}
|
|
|
|
// Call back
|
|
boolean more = resultsCallback.handle(new FilterSortNode(nodeRef, propVals));
|
|
if (!more)
|
|
{
|
|
this.more = false;
|
|
}
|
|
|
|
return more;
|
|
}
|
|
|
|
public void done()
|
|
{
|
|
}
|
|
}
|
|
|
|
private class FilterSortNode
|
|
{
|
|
private NodeRef nodeRef;
|
|
private Map<QName, Serializable> propVals; // subset of nodes properties - used for filtering and/or sorting
|
|
|
|
public FilterSortNode(NodeRef nodeRef, Map<QName, Serializable> propVals)
|
|
{
|
|
this.nodeRef = nodeRef;
|
|
this.propVals = propVals;
|
|
}
|
|
|
|
public NodeRef getNodeRef()
|
|
{
|
|
return nodeRef;
|
|
}
|
|
|
|
public Serializable getVal(QName prop)
|
|
{
|
|
return propVals.get(prop);
|
|
}
|
|
|
|
public Map<QName, Serializable> getPropVals()
|
|
{
|
|
return propVals;
|
|
}
|
|
}
|
|
|
|
private class UnsortedResultHandler implements CannedQueryDAO.ResultHandler<NodeEntity>
|
|
{
|
|
private final UnsortedChildQueryCallback resultsCallback;
|
|
private final String authenticationToken;
|
|
|
|
private boolean more = true;
|
|
|
|
private static final int BATCH_SIZE = 256 * 4;
|
|
private final List<NodeRef> nodeRefs;
|
|
|
|
private UnsortedResultHandler(UnsortedChildQueryCallback resultsCallback, String authenticationToken)
|
|
{
|
|
this.resultsCallback = resultsCallback;
|
|
this.authenticationToken = authenticationToken;
|
|
|
|
nodeRefs = new LinkedList<NodeRef>();
|
|
}
|
|
|
|
public boolean handleResult(NodeEntity result)
|
|
{
|
|
// Do nothing if no further results are required
|
|
if (!more)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
NodeRef nodeRef = result.getNodeRef();
|
|
|
|
if (nodeRefs.size() >= BATCH_SIZE)
|
|
{
|
|
// batch
|
|
preloadAndApplyPermissions();
|
|
}
|
|
|
|
nodeRefs.add(nodeRef);
|
|
|
|
return more;
|
|
}
|
|
|
|
private void preloadAndApplyPermissions()
|
|
{
|
|
preload(nodeRefs);
|
|
|
|
// TODO track total time for incremental permission checks ... and cutoff (eg. based on some config)
|
|
PagingResults<NodeRef> results = applyPermissions(nodeRefs, authenticationToken, nodeRefs.size());
|
|
|
|
for (NodeRef nodeRef : results.getPage())
|
|
{
|
|
// Call back
|
|
boolean more = resultsCallback.handle(nodeRef);
|
|
if (!more)
|
|
{
|
|
this.more = false;
|
|
break;
|
|
}
|
|
}
|
|
|
|
nodeRefs.clear();
|
|
}
|
|
|
|
public void done()
|
|
{
|
|
if (nodeRefs.size() >= 0)
|
|
{
|
|
// finish batch
|
|
preloadAndApplyPermissions();
|
|
}
|
|
}
|
|
}
|
|
} |