001: /***************************************************************
002: * This file is part of the [fleXive](R) project.
003: *
004: * Copyright (c) 1999-2008
005: * UCS - unique computing solutions gmbh (http://www.ucs.at)
006: * All rights reserved
007: *
008: * The [fleXive](R) project is free software; you can redistribute
009: * it and/or modify it under the terms of the GNU General Public
010: * License as published by the Free Software Foundation;
011: * either version 2 of the License, or (at your option) any
012: * later version.
013: *
014: * The GNU General Public License can be found at
015: * http://www.gnu.org/copyleft/gpl.html.
016: * A copy is found in the textfile GPL.txt and important notices to the
017: * license from the author are found in LICENSE.txt distributed with
018: * these libraries.
019: *
020: * This library is distributed in the hope that it will be useful,
021: * but WITHOUT ANY WARRANTY; without even the implied warranty of
022: * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
023: * GNU General Public License for more details.
024: *
025: * For further information about UCS - unique computing solutions gmbh,
026: * please see the company website: http://www.ucs.at
027: *
028: * For further information about [fleXive](R), please see the
029: * project website: http://www.flexive.org
030: *
031: *
032: * This copyright notice MUST APPEAR in all copies of the file!
033: ***************************************************************/package com.flexive.core.storage;
034:
035: import com.flexive.core.Database;
036: import com.flexive.core.storage.mySQL.MySQLEnvironmentLoader;
037: import com.flexive.core.storage.mySQL.MySQLHierarchicalStorage;
038: import com.flexive.core.storage.mySQL.MySQLTreeStorage;
039: import com.flexive.shared.FxContext;
040: import com.flexive.shared.configuration.DBVendor;
041: import com.flexive.shared.configuration.DivisionData;
042: import com.flexive.shared.exceptions.FxNotFoundException;
043: import com.flexive.shared.structure.TypeStorageMode;
044:
045: import java.sql.SQLException;
046:
047: /**
048: * Singleton Facade for the various storage implementations
049: *
050: * @author Markus Plesser (markus.plesser@flexive.com), UCS - unique computing solutions gmbh (http://www.ucs.at)
051: */
052: public class StorageManager {
053:
054: /**
055: * Get concrete content storage implementation for the given type storage mode
056: *
057: * @param mode used storage mode
058: * @return DataSelector for the given storage mode
059: * @throws FxNotFoundException if no implementation was found
060: */
061: public static ContentStorage getContentStorage(TypeStorageMode mode)
062: throws FxNotFoundException {
063: DBVendor vendor;
064: try {
065: vendor = Database.getDivisionData().getDbVendor();
066: switch (mode) {
067: case Hierarchical:
068: switch (vendor) {
069: case MySQL:
070: return MySQLHierarchicalStorage.getInstance();
071: default:
072: throw new FxNotFoundException(
073: "ex.db.contentStorage.undefined", vendor,
074: mode);
075: }
076: default:
077: throw new FxNotFoundException(
078: "ex.structure.typeStorageMode.notImplemented",
079: mode);
080: }
081: } catch (SQLException e) {
082: throw new FxNotFoundException("ex.db.vendor.notFound",
083: FxContext.get().getDivisionId());
084: }
085: }
086:
087: /**
088: * Get concrete content storage implementation for the given type storage mode.
089: * This variant is only to be used from a division free context like in a timer service or mbean
090: *
091: * @param data DivisionData
092: * @param mode used storage mode
093: * @return DataSelector for the given storage mode
094: * @throws FxNotFoundException if no implementation was found
095: */
096: public static ContentStorage getContentStorage(DivisionData data,
097: TypeStorageMode mode) throws FxNotFoundException {
098: switch (mode) {
099: case Hierarchical:
100: switch (data.getDbVendor()) {
101: case MySQL:
102: return MySQLHierarchicalStorage.getInstance();
103: default:
104: throw new FxNotFoundException(
105: "ex.db.contentStorage.undefined", data
106: .getDbVendor(), mode);
107: }
108: default:
109: throw new FxNotFoundException(
110: "ex.structure.typeStorageMode.notImplemented", mode);
111: }
112: }
113:
114: /**
115: * Get concrete tree storage implementation for the used database
116: *
117: * @return TreeStorage
118: * @throws FxNotFoundException if no implementation was found
119: */
120: public static TreeStorage getTreeStorage()
121: throws FxNotFoundException {
122: DBVendor vendor;
123: try {
124: vendor = Database.getDivisionData().getDbVendor();
125: switch (vendor) {
126: case MySQL:
127: return MySQLTreeStorage.getInstance();
128: default:
129: throw new FxNotFoundException(
130: "ex.db.treeStorage.undefined", vendor);
131: }
132: } catch (SQLException e) {
133: throw new FxNotFoundException("ex.db.vendor.notFound",
134: FxContext.get().getDivisionId());
135: }
136: }
137:
138: /**
139: * Get a concrete environment loader instance for a division
140: *
141: * @param dd DivisionData for the requested Division
142: * @return EnvironmentLoader instance
143: * @throws FxNotFoundException if no implementation was found
144: */
145: public static EnvironmentLoader getEnvironmentLoader(DivisionData dd)
146: throws FxNotFoundException {
147: DBVendor vendor = dd.getDbVendor();
148: switch (vendor) {
149: case MySQL:
150: return MySQLEnvironmentLoader.getInstance();
151: default:
152: throw new FxNotFoundException(
153: "ex.db.environmentLoader.undefined", vendor);
154: }
155: }
156: }
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