strolch/agent/src/main/java/li/strolch/runtime/query/enums/DefaultEnumHandler.java

110 lines
3.9 KiB
Java

/*
* Copyright 2013 Robert von Burg <eitch@eitchnet.ch>
*
* 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 li.strolch.runtime.query.enums;
import static li.strolch.model.StrolchModelConstants.TYPE_ENUMERATION;
import static li.strolch.utils.helper.StringHelper.DASH;
import static li.strolch.utils.helper.StringHelper.isNotEmpty;
import java.text.MessageFormat;
import java.util.*;
import li.strolch.agent.api.ComponentContainer;
import li.strolch.agent.api.StrolchComponent;
import li.strolch.exception.StrolchException;
import li.strolch.model.ParameterBag;
import li.strolch.model.Resource;
import li.strolch.model.parameter.Parameter;
import li.strolch.model.parameter.StringParameter;
import li.strolch.persistence.api.StrolchTransaction;
import li.strolch.privilege.model.Certificate;
import li.strolch.utils.dbc.DBC;
/**
* @author Robert von Burg <eitch@eitchnet.ch>
*/
public class DefaultEnumHandler extends StrolchComponent implements EnumHandler {
public DefaultEnumHandler(ComponentContainer container, String componentName) {
super(container, componentName);
}
@Override
public StrolchEnum getEnum(Certificate certificate, String name, Locale locale) {
return getEnum(certificate, name, locale, false);
}
@Override
public StrolchEnum getEnum(Certificate certificate, String name, Locale locale, boolean withoutHidden) {
DBC.PRE.assertNotEmpty("Enum name must be given!", name);
DBC.PRE.assertNotNull("Locale must be given!", locale);
try (StrolchTransaction tx = openTx(certificate, true)) {
return getEnum(tx, name, locale, withoutHidden);
}
}
@Override
public StrolchEnum getEnum(StrolchTransaction tx, String name) {
return getEnum(tx, name, tx.getLocale(), false);
}
@Override
public StrolchEnum getEnum(StrolchTransaction tx, String name, boolean withoutHidden) {
return getEnum(tx, name, tx.getLocale(), withoutHidden);
}
private StrolchEnum getEnum(StrolchTransaction tx, String name, Locale locale, boolean withoutHidden) {
Resource enumeration = tx.getResourceBy(TYPE_ENUMERATION, name, true);
ParameterBag enumValuesByLanguage = findParameterBagByLanguage(enumeration, locale);
List<Parameter<?>> parameters = enumValuesByLanguage.getParameters();
parameters.sort(Comparator.comparing(Parameter::getIndex));
Map<String, String> values = new LinkedHashMap<>(parameters.size());
for (Parameter<?> param : parameters) {
if (withoutHidden && param.isHidden())
continue;
StringParameter enumParam = (StringParameter) param;
values.put(enumParam.getId(), enumParam.getValue());
}
return new StrolchEnum(name, locale, values);
}
private ParameterBag findParameterBagByLanguage(Resource enumeration, Locale locale) {
if (isNotEmpty(locale.getVariant())) {
String localeS = locale.getLanguage() + DASH + locale.getCountry() + DASH + locale.getVariant();
if (enumeration.hasParameterBag(localeS))
return enumeration.getParameterBag(localeS);
}
if (isNotEmpty(locale.getCountry())) {
String localeS = locale.getLanguage() + DASH + locale.getCountry();
if (enumeration.hasParameterBag(localeS))
return enumeration.getParameterBag(localeS);
}
String localeS = locale.getLanguage();
if (enumeration.hasParameterBag(localeS))
return enumeration.getParameterBag(localeS);
String msg = "No enumeration exists for language {0} on enumeration {1}";
msg = MessageFormat.format(msg, locale, enumeration.getLocator());
throw new StrolchException(msg);
}
}