/*
* 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.PreferenceScopeResolutionStrategy;
import org.uberfire.preferences.shared.PreferenceScopeTypes;
import org.uberfire.preferences.shared.PreferenceScopeValidator;
import org.uberfire.preferences.shared.impl.exception.InvalidPreferenceScopeException;
@ApplicationScoped
public class PreferenceScopeValidatorImpl implements PreferenceScopeValidator {
private PreferenceScopeTypes scopeTypes;
private PreferenceScopeResolutionStrategy scopeResolutionStrategy;
protected PreferenceScopeValidatorImpl() {
}
@Inject
public PreferenceScopeValidatorImpl(@Customizable final PreferenceScopeTypes scopeTypes,
@Customizable final PreferenceScopeResolutionStrategy scopeResolutionStrategy) {
this.scopeTypes = scopeTypes;
this.scopeResolutionStrategy = scopeResolutionStrategy;
}
@Override
public void validate(final PreferenceScope scope) throws InvalidPreferenceScopeException {
if (scope == null) {
throw new InvalidPreferenceScopeException("A root scope must not be null.");
}
for (PreferenceScope currentScope = scope; currentScope != null; currentScope = currentScope.childScope()) {
final String type = currentScope.type();
final String key = currentScope.key();
if (scopeTypes.typeRequiresKey(type) && isEmpty(key)) {
throw new InvalidPreferenceScopeException("The type " + type + " must be associated with a non empty key.");
}
}
if (!scopeResolutionStrategy.getInfo().order().contains(scope)) {
throw new InvalidPreferenceScopeException("This scope is not defined in the scope hierarchy.");
}
}
protected boolean isEmpty(String str) {
return str == null || str.trim().isEmpty();
}
}