Java tutorial
package edu.indiana.lib.osid.base.repository.http; /********************************************************************************** * $URL$ * $Id$ ********************************************************************************** * * Copyright (c) 2003, 2004, 2005, 2007, 2008 The Sakai Foundation * * Licensed under the Educational Community 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.opensource.org/licenses/ECL-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. * **********************************************************************************/ /** * @author Massachusetts Institute of Techbology, Sakai Software Development Team * @version */ public class Asset extends edu.indiana.lib.osid.base.repository.Asset { private static org.apache.commons.logging.Log _log = edu.indiana.lib.twinpeaks.util.LogUtils .getLog(Asset.class); private org.osid.shared.Type assetType = new Type("mit.edu", "asset", "library_content"); private org.osid.shared.Type recordStructureType = new Type("mit.edu", "recordStructure", "library_content"); private org.osid.shared.Type dcRecordStructureType = new Type("mit.edu", "recordStructure", "dublinCore"); private org.osid.shared.Type vueRecordStructureType = new Type("tufts.edu", "recordStructure", "vue"); private org.osid.id.IdManager idManager = Managers.getIdManager(); private org.osid.shared.Id id = null; private org.osid.shared.Id repositoryId = null; private String idString = null; private String displayName = null; private String description = null; private org.osid.shared.Type type = null; private java.util.Vector recordVector = new java.util.Vector(); private String content = null; protected Asset(String displayName, String description, String idString, org.osid.shared.Id repositoryId) throws org.osid.repository.RepositoryException { this.displayName = displayName; this.description = description; this.repositoryId = repositoryId; this.type = new Type("mit.edu", "asset", "library_content"); try { this.id = idManager.getId(idString); } catch (Throwable t) { _log.error(t.getMessage()); } } public String getDisplayName() throws org.osid.repository.RepositoryException { return this.displayName; } public String getDescription() throws org.osid.repository.RepositoryException { return this.description; } public org.osid.shared.Id getId() throws org.osid.repository.RepositoryException { return this.id; } public org.osid.shared.Id getRepository() throws org.osid.repository.RepositoryException { return this.repositoryId; } public java.io.Serializable getContent() throws org.osid.repository.RepositoryException { return this.content; } public void updateContent(java.io.Serializable content) throws org.osid.repository.RepositoryException { this.content = (String) content; } public org.osid.repository.AssetIterator getAssets() throws org.osid.repository.RepositoryException { return new AssetIterator(new java.util.Vector()); } public org.osid.repository.AssetIterator getAssetsByType(org.osid.shared.Type assetType) throws org.osid.repository.RepositoryException { if (assetType == null) { throw new org.osid.repository.RepositoryException(org.osid.shared.SharedException.NULL_ARGUMENT); } return new AssetIterator(new java.util.Vector()); } public org.osid.repository.Record createRecord(org.osid.shared.Id recordStructureId) throws org.osid.repository.RepositoryException { if (recordStructureId == null) { throw new org.osid.repository.RepositoryException(org.osid.shared.SharedException.NULL_ARGUMENT); } try { org.osid.repository.Record record = new Record(recordStructureId, this.idManager); this.recordVector.addElement(record); return record; } catch (Throwable t) { _log.error(t.getMessage()); throw new org.osid.repository.RepositoryException(org.osid.OsidException.OPERATION_FAILED); } } public void deleteRecord(org.osid.shared.Id recordId) throws org.osid.repository.RepositoryException { if (recordId == null) { throw new org.osid.repository.RepositoryException(org.osid.shared.SharedException.NULL_ARGUMENT); } try { for (int i = 0, size = this.recordVector.size(); i < size; i++) { org.osid.repository.Record record = (org.osid.repository.Record) this.recordVector.elementAt(i); if (record.getId().isEqual(recordId)) { this.recordVector.removeElementAt(i); return; } } throw new org.osid.repository.RepositoryException(org.osid.shared.SharedException.UNKNOWN_ID); } catch (Throwable t) { _log.error(t.getMessage()); throw new org.osid.repository.RepositoryException(org.osid.OsidException.OPERATION_FAILED); } } public org.osid.repository.RecordIterator getRecords() throws org.osid.repository.RepositoryException { return new RecordIterator(this.recordVector); } public org.osid.repository.RecordIterator getRecordsByRecordStructure(org.osid.shared.Id recordStructureId) throws org.osid.repository.RepositoryException { if (recordStructureId == null) { throw new org.osid.repository.RepositoryException(org.osid.shared.SharedException.NULL_ARGUMENT); } try { return new RecordIterator(this.recordVector); } catch (Throwable t) { _log.error(t.getMessage()); throw new org.osid.repository.RepositoryException(org.osid.OsidException.OPERATION_FAILED); } } public org.osid.shared.Type getAssetType() throws org.osid.repository.RepositoryException { return this.type; } public org.osid.repository.RecordStructureIterator getRecordStructures() throws org.osid.repository.RepositoryException { java.util.Vector results = new java.util.Vector(); results.addElement(new RecordStructure()); return new RecordStructureIterator(results); } public org.osid.repository.RecordStructure getContentRecordStructure() throws org.osid.repository.RepositoryException { return new RecordStructure(); } public org.osid.repository.Record getRecord(org.osid.shared.Id recordId) throws org.osid.repository.RepositoryException { if (recordId == null) { throw new org.osid.repository.RepositoryException(org.osid.shared.SharedException.NULL_ARGUMENT); } try { for (int i = 0, size = this.recordVector.size(); i < size; i++) { org.osid.repository.Record record = (org.osid.repository.Record) this.recordVector.elementAt(i); if (record.getId().isEqual(recordId)) { return record; } } throw new org.osid.repository.RepositoryException(org.osid.shared.SharedException.UNKNOWN_ID); } catch (Throwable t) { _log.error(t.getMessage()); throw new org.osid.repository.RepositoryException(org.osid.OsidException.OPERATION_FAILED); } } public org.osid.repository.Part getPart(org.osid.shared.Id partId) throws org.osid.repository.RepositoryException { if (partId == null) { throw new org.osid.repository.RepositoryException(org.osid.shared.SharedException.NULL_ARGUMENT); } try { for (int i = 0, size = this.recordVector.size(); i < size; i++) { org.osid.repository.Record record = (org.osid.repository.Record) this.recordVector.elementAt(i); org.osid.repository.PartIterator partIterator = record.getParts(); while (partIterator.hasNextPart()) { org.osid.repository.Part part = partIterator.nextPart(); if (part.getId().isEqual(partId)) { return part; } } } throw new org.osid.repository.RepositoryException(org.osid.shared.SharedException.UNKNOWN_ID); } catch (Throwable t) { _log.error(t.getMessage()); throw new org.osid.repository.RepositoryException(org.osid.OsidException.OPERATION_FAILED); } } public java.io.Serializable getPartValue(org.osid.shared.Id partId) throws org.osid.repository.RepositoryException { org.osid.repository.Part part = getPart(partId); return part.getValue(); } public org.osid.repository.PartIterator getPartByPart(org.osid.shared.Id partStructureId) throws org.osid.repository.RepositoryException { if (partStructureId == null) { throw new org.osid.repository.RepositoryException(org.osid.shared.SharedException.NULL_ARGUMENT); } try { java.util.Vector results = new java.util.Vector(); for (int i = 0, size = this.recordVector.size(); i < size; i++) { org.osid.repository.Record record = (org.osid.repository.Record) this.recordVector.elementAt(i); org.osid.repository.PartIterator partIterator = record.getParts(); while (partIterator.hasNextPart()) { org.osid.repository.Part part = partIterator.nextPart(); if (part.getPartStructure().getId().isEqual(partStructureId)) { results.addElement(part); } } } return new PartIterator(results); } catch (Throwable t) { _log.error(t.getMessage()); throw new org.osid.repository.RepositoryException(org.osid.OsidException.OPERATION_FAILED); } } public org.osid.shared.ObjectIterator getPartValueByPart(org.osid.shared.Id partStructureId) throws org.osid.repository.RepositoryException { java.util.Vector results = new java.util.Vector(); org.osid.repository.PartIterator partIterator = getPartByPart(partStructureId); while (partIterator.hasNextPart()) { results.addElement(partIterator.nextPart().getValue()); } try { return new ObjectIterator(results); } catch (Throwable t) { _log.error(t.getMessage()); throw new org.osid.repository.RepositoryException(org.osid.OsidException.OPERATION_FAILED); } } public org.osid.shared.ObjectIterator getPartValuesByPartStructure(org.osid.shared.Id partStructureId) throws org.osid.repository.RepositoryException { if (partStructureId == null) { throw new org.osid.repository.RepositoryException(org.osid.shared.SharedException.NULL_ARGUMENT); } try { java.util.Vector results = new java.util.Vector(); org.osid.repository.PartIterator partIterator = getPartsByPartStructure(partStructureId); while (partIterator.hasNextPart()) { org.osid.repository.Part part = partIterator.nextPart(); results.addElement(part.getValue()); } return new ObjectIterator(results); } catch (Throwable t) { _log.error(t.getMessage()); throw new org.osid.repository.RepositoryException(org.osid.OsidException.OPERATION_FAILED); } } public org.osid.repository.PartIterator getPartsByPartStructure(org.osid.shared.Id partStructureId) throws org.osid.repository.RepositoryException { if (partStructureId == null) { throw new org.osid.repository.RepositoryException(org.osid.shared.SharedException.NULL_ARGUMENT); } try { java.util.Vector results = new java.util.Vector(); org.osid.repository.RecordIterator recordIterator = getRecords(); while (recordIterator.hasNextRecord()) { org.osid.repository.Record record = recordIterator.nextRecord(); org.osid.repository.PartIterator partIterator = record.getParts(); while (partIterator.hasNextPart()) { org.osid.repository.Part part = partIterator.nextPart(); if (part.getPartStructure().getId().isEqual(partStructureId)) { results.addElement(part); } } } return new PartIterator(results); } catch (Throwable t) { _log.error(t.getMessage()); throw new org.osid.repository.RepositoryException(org.osid.OsidException.OPERATION_FAILED); } } public org.osid.repository.RecordIterator getRecordsByRecordStructureType( org.osid.shared.Type recordStructureType) throws org.osid.repository.RepositoryException { if (recordStructureType == null) { throw new org.osid.repository.RepositoryException(org.osid.shared.SharedException.NULL_ARGUMENT); } if ((!recordStructureType.isEqual(this.recordStructureType)) && (!recordStructureType.isEqual(this.dcRecordStructureType)) && (!recordStructureType.isEqual(this.vueRecordStructureType))) { throw new org.osid.repository.RepositoryException(org.osid.shared.SharedException.UNKNOWN_TYPE); } java.util.Vector results = new java.util.Vector(); for (int i = 0, size = this.recordVector.size(); i < size; i++) { org.osid.repository.Record r = (org.osid.repository.Record) this.recordVector.elementAt(i); if (r.getRecordStructure().getType().isEqual(recordStructureType)) { results.addElement(r); } } return new RecordIterator(results); } }