/*
* Copyright 2016 Red Hat, Inc. and/or its affiliates.
*
* Licensed 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.uberfire.preferences.shared.impl;
import javax.enterprise.context.ApplicationScoped;
import javax.inject.Inject;
import org.uberfire.annotations.Customizable;
import org.uberfire.preferences.shared.PreferenceScope;
import org.uberfire.preferences.shared.PreferenceScopeFactory;
import org.uberfire.preferences.shared.PreferenceScopeTypes;
import org.uberfire.preferences.shared.impl.exception.InvalidPreferenceScopeException;
@ApplicationScoped
public class PreferenceScopeFactoryImpl implements PreferenceScopeFactory {
private PreferenceScopeTypes scopeTypes;
protected PreferenceScopeFactoryImpl() {
}
@Inject
public PreferenceScopeFactoryImpl(@Customizable final PreferenceScopeTypes scopeTypes) {
this.scopeTypes = scopeTypes;
}
@Override
public PreferenceScope createScope(final String type) throws InvalidPreferenceScopeException {
return createScopeWithoutKey(type,
null);
}
@Override
public PreferenceScope createScope(final String type,
final PreferenceScope childScope) throws InvalidPreferenceScopeException {
return createScopeWithoutKey(type,
childScope);
}
@Override
public PreferenceScope createScope(final String type,
final String key) throws InvalidPreferenceScopeException {
return createScopeWithKey(type,
key,
null);
}
@Override
public PreferenceScope createScope(final String type,
final String key,
final PreferenceScope childScope) throws InvalidPreferenceScopeException {
return createScopeWithKey(type,
key,
childScope);
}
@Override
public PreferenceScope createScope(final PreferenceScope... scopes) throws InvalidPreferenceScopeException {
PreferenceScope scope = null;
PreferenceScope currentScope = null;
PreferenceScope previousScope = null;
for (int i = scopes.length - 1; i >= 0; i--) {
scope = scopes[i];
currentScope = new PreferenceScopeImpl(scope.type(),
scope.key(),
previousScope);
previousScope = currentScope;
}
return currentScope;
}
@Override
public PreferenceScope cloneScope(final PreferenceScope scope) {
if (scope == null) {
return null;
}
return new PreferenceScopeImpl(scope.type(),
scope.key(),
cloneScope(scope.childScope()));
}
private PreferenceScope createScopeWithoutKey(final String type,
final PreferenceScope childScope) {
if (scopeTypes.typeRequiresKey(type)) {
throw new InvalidPreferenceScopeException("This preference scope type requires a key to be built.");
}
return new PreferenceScopeImpl(type,
scopeTypes.getDefaultKeyFor(type),
childScope);
}
private PreferenceScope createScopeWithKey(final String type,
final String key,
final PreferenceScope childScope) {
if (!scopeTypes.typeRequiresKey(type)) {
throw new InvalidPreferenceScopeException("This preference scope type does not require a key to be built.");
}
return new PreferenceScopeImpl(type,
key,
childScope);
}
}