| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| */ |
| |
| package org.apache.guacamole.auth.jdbc.base; |
| |
| import java.util.ArrayList; |
| import java.util.Collection; |
| import java.util.HashSet; |
| import java.util.List; |
| import java.util.Set; |
| import org.apache.guacamole.GuacamoleException; |
| import org.apache.guacamole.net.auth.ActivityRecord; |
| import org.apache.guacamole.net.auth.ActivityRecordSet; |
| import org.apache.guacamole.net.auth.ActivityRecordSet.SortableProperty; |
| import org.apache.guacamole.net.auth.AuthenticatedUser; |
| |
| /** |
| * A JDBC implementation of ActivityRecordSet. Calls to asCollection() will |
| * query history records using an implementation-specific mechanism. Which |
| * records are returned will be determined by the values passed in earlier. |
| * |
| * @param <RecordType> |
| * The type of ActivityRecord contained within this set. |
| */ |
| public abstract class ModeledActivityRecordSet<RecordType extends ActivityRecord> |
| extends RestrictedObject implements ActivityRecordSet<RecordType> { |
| |
| /** |
| * The set of strings that each must occur somewhere within the returned |
| * records, whether within the associated username, an associated date, or |
| * other related data. If non-empty, any record not matching each of the |
| * strings within the collection will be excluded from the results. |
| */ |
| private final Set<ActivityRecordSearchTerm> requiredContents = |
| new HashSet<ActivityRecordSearchTerm>(); |
| |
| /** |
| * The maximum number of history records that should be returned by a call |
| * to asCollection(). |
| */ |
| private int limit = Integer.MAX_VALUE; |
| |
| /** |
| * A list of predicates to apply while sorting the resulting records, |
| * describing the properties involved and the sort order for those |
| * properties. |
| */ |
| private final List<ActivityRecordSortPredicate> sortPredicates = |
| new ArrayList<ActivityRecordSortPredicate>(); |
| |
| /** |
| * Retrieves the history records matching the given criteria. Retrieves up |
| * to <code>limit</code> history records matching the given terms and sorted |
| * by the given predicates. Only history records associated with data that |
| * the given user can read are returned. |
| * |
| * @param user |
| * The user retrieving the history. |
| * |
| * @param requiredContents |
| * The search terms that must be contained somewhere within each of the |
| * returned records. |
| * |
| * @param sortPredicates |
| * A list of predicates to sort the returned records by, in order of |
| * priority. |
| * |
| * @param limit |
| * The maximum number of records that should be returned. |
| * |
| * @return |
| * A collection of all history records matching the given criteria. |
| * |
| * @throws GuacamoleException |
| * If permission to read the history records is denied. |
| */ |
| protected abstract Collection<RecordType> retrieveHistory( |
| AuthenticatedUser user, |
| Set<ActivityRecordSearchTerm> requiredContents, |
| List<ActivityRecordSortPredicate> sortPredicates, |
| int limit) throws GuacamoleException; |
| |
| @Override |
| public Collection<RecordType> asCollection() |
| throws GuacamoleException { |
| return retrieveHistory(getCurrentUser(), requiredContents, |
| sortPredicates, limit); |
| } |
| |
| @Override |
| public ModeledActivityRecordSet<RecordType> contains(String value) |
| throws GuacamoleException { |
| requiredContents.add(new ActivityRecordSearchTerm(value)); |
| return this; |
| } |
| |
| @Override |
| public ModeledActivityRecordSet<RecordType> limit(int limit) throws GuacamoleException { |
| this.limit = Math.min(this.limit, limit); |
| return this; |
| } |
| |
| @Override |
| public ModeledActivityRecordSet<RecordType> sort(SortableProperty property, boolean desc) |
| throws GuacamoleException { |
| |
| sortPredicates.add(new ActivityRecordSortPredicate( |
| property, |
| desc |
| )); |
| |
| return this; |
| |
| } |
| |
| } |