/**
* Copyright (C) 2012 - present by OpenGamma Inc. and the OpenGamma group of companies
*
* Please see distribution for license.
*/
package com.opengamma.master.user.impl;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import org.threeten.bp.Instant;
import com.google.common.base.Supplier;
import com.opengamma.DataNotFoundException;
import com.opengamma.core.change.BasicChangeManager;
import com.opengamma.core.change.ChangeManager;
import com.opengamma.core.change.ChangeType;
import com.opengamma.id.ObjectId;
import com.opengamma.id.ObjectIdSupplier;
import com.opengamma.id.ObjectIdentifiable;
import com.opengamma.id.UniqueId;
import com.opengamma.id.VersionCorrection;
import com.opengamma.master.SimpleAbstractInMemoryMaster;
import com.opengamma.master.user.ManageableOGUser;
import com.opengamma.master.user.UserDocument;
import com.opengamma.master.user.UserHistoryRequest;
import com.opengamma.master.user.UserHistoryResult;
import com.opengamma.master.user.UserMaster;
import com.opengamma.master.user.UserSearchRequest;
import com.opengamma.master.user.UserSearchResult;
import com.opengamma.util.ArgumentChecker;
import com.opengamma.util.paging.Paging;
/**
* A simple, in-memory implementation of {@code UserMaster}.
* <p>
* This master does not support versioning of users.
* <p>
* This implementation does not copy stored elements, making it thread-hostile.
* As such, this implementation is currently most useful for testing scenarios.
*/
public class InMemoryUserMaster
extends SimpleAbstractInMemoryMaster<UserDocument>
implements UserMaster {
/**
* The default scheme used for each {@link ObjectId}.
*/
public static final String DEFAULT_OID_SCHEME = "MemUsr";
/**
* Creates an instance.
*/
public InMemoryUserMaster() {
this(new ObjectIdSupplier(DEFAULT_OID_SCHEME));
}
/**
* Creates an instance specifying the change manager.
*
* @param changeManager the change manager, not null
*/
public InMemoryUserMaster(final ChangeManager changeManager) {
this(new ObjectIdSupplier(DEFAULT_OID_SCHEME), changeManager);
}
/**
* Creates an instance specifying the supplier of object identifiers.
*
* @param objectIdSupplier the supplier of object identifiers, not null
*/
public InMemoryUserMaster(final Supplier<ObjectId> objectIdSupplier) {
this(objectIdSupplier, new BasicChangeManager());
}
/**
* Creates an instance specifying the supplier of object identifiers and change manager.
*
* @param objectIdSupplier the supplier of object identifiers, not null
* @param changeManager the change manager, not null
*/
public InMemoryUserMaster(final Supplier<ObjectId> objectIdSupplier, final ChangeManager changeManager) {
super(objectIdSupplier, changeManager);
}
//-------------------------------------------------------------------------
@Override
protected void validateDocument(UserDocument document) {
ArgumentChecker.notNull(document, "document");
ArgumentChecker.notNull(document.getUser(), "document.user");
}
//-------------------------------------------------------------------------
@Override
public UserSearchResult search(final UserSearchRequest request) {
ArgumentChecker.notNull(request, "request");
final List<UserDocument> list = new ArrayList<UserDocument>();
for (UserDocument doc : _store.values()) {
if (request.matches(doc)) {
list.add(doc);
}
}
Collections.sort(list, request.getSortOrder());
UserSearchResult result = new UserSearchResult();
result.setPaging(Paging.of(request.getPagingRequest(), list));
result.getDocuments().addAll(request.getPagingRequest().select(list));
return result;
}
//-------------------------------------------------------------------------
@Override
public UserDocument get(final UniqueId uniqueId) {
return get(uniqueId, VersionCorrection.LATEST);
}
//-------------------------------------------------------------------------
@Override
public UserDocument get(final ObjectIdentifiable objectId, final VersionCorrection versionCorrection) {
ArgumentChecker.notNull(objectId, "objectId");
ArgumentChecker.notNull(versionCorrection, "versionCorrection");
final UserDocument document = _store.get(objectId.getObjectId());
if (document == null) {
throw new DataNotFoundException("User not found: " + objectId);
}
return document;
}
//-------------------------------------------------------------------------
@Override
public UserDocument add(final UserDocument document) {
ArgumentChecker.notNull(document, "document");
ArgumentChecker.notNull(document.getUser(), "document.user");
final ObjectId objectId = _objectIdSupplier.get();
final UniqueId uniqueId = objectId.atVersion("");
final ManageableOGUser user = document.getUser().clone();
user.setUniqueId(uniqueId);
document.setUniqueId(uniqueId);
final Instant now = Instant.now();
final UserDocument doc = new UserDocument(user);
doc.setVersionFromInstant(now);
doc.setCorrectionFromInstant(now);
_store.put(objectId, doc);
_changeManager.entityChanged(ChangeType.ADDED, objectId, doc.getVersionFromInstant(), doc.getVersionToInstant(), now);
return doc;
}
//-------------------------------------------------------------------------
@Override
public UserDocument update(final UserDocument document) {
ArgumentChecker.notNull(document, "document");
ArgumentChecker.notNull(document.getUniqueId(), "document.uniqueId");
ArgumentChecker.notNull(document.getUser(), "document.user");
final UniqueId uniqueId = document.getUniqueId();
final Instant now = Instant.now();
final UserDocument storedDocument = _store.get(uniqueId.getObjectId());
if (storedDocument == null) {
throw new DataNotFoundException("User not found: " + uniqueId);
}
document.setVersionFromInstant(now);
document.setVersionToInstant(null);
document.setCorrectionFromInstant(now);
document.setCorrectionToInstant(null);
document.setUniqueId(uniqueId.withVersion(""));
if (_store.replace(uniqueId.getObjectId(), storedDocument, document) == false) {
throw new IllegalArgumentException("Concurrent modification");
}
_changeManager.entityChanged(ChangeType.CHANGED, document.getObjectId(), storedDocument.getVersionFromInstant(), document.getVersionToInstant(), now);
return document;
}
//-------------------------------------------------------------------------
@Override
public void remove(ObjectIdentifiable objectIdentifiable) {
ArgumentChecker.notNull(objectIdentifiable, "objectIdentifiable");
if (_store.remove(objectIdentifiable.getObjectId()) == null) {
throw new DataNotFoundException("User not found: " + objectIdentifiable);
}
_changeManager.entityChanged(ChangeType.REMOVED, objectIdentifiable.getObjectId(), null, null, Instant.now());
}
//-------------------------------------------------------------------------
@Override
public UserDocument correct(final UserDocument document) {
return update(document);
}
//-------------------------------------------------------------------------
@Override
public UserHistoryResult history(final UserHistoryRequest request) {
ArgumentChecker.notNull(request, "request");
ArgumentChecker.notNull(request.getObjectId(), "request.objectId");
final UserHistoryResult result = new UserHistoryResult();
final UserDocument doc = get(request.getObjectId(), VersionCorrection.LATEST);
if (doc != null) {
result.getDocuments().add(doc);
}
result.setPaging(Paging.ofAll(result.getDocuments()));
return result;
}
}