com.chutneytesting.action.infra.DefaultActionTemplateLoader Maven / Gradle / Ivy
/*
* Copyright 2017-2023 Enedis
*
* 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 com.chutneytesting.action.infra;
import com.chutneytesting.action.domain.ParsingError;
import com.chutneytesting.action.domain.ResultOrError;
import com.chutneytesting.action.domain.ActionTemplate;
import com.chutneytesting.action.domain.ActionTemplateLoader;
import com.chutneytesting.action.domain.ActionTemplateParser;
import java.util.List;
import java.util.stream.Collectors;
import java.util.stream.Stream;
import com.chutneytesting.tools.loader.ExtensionLoaders;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* @param the Action type to load as {@link ActionTemplate} using an appropriate {@link ActionTemplateParser}
*/
public class DefaultActionTemplateLoader implements ActionTemplateLoader {
private static final Logger LOGGER = LoggerFactory.getLogger(DefaultActionTemplateLoader.class);
private final String extensionFileName;
private final Class actionInterface;
private final ActionTemplateParser actionTemplateParser;
public DefaultActionTemplateLoader(String extensionFileName, Class actionInterface, ActionTemplateParser actionTemplateParser) {
this.extensionFileName = extensionFileName;
this.actionInterface = actionInterface;
this.actionTemplateParser = actionTemplateParser;
}
@Override
public List load() {
return loadClasses()
.map(actionTemplateParser::parse)
.peek(this::warnIfParsingError)
.filter(ResultOrError::isOk)
.map(parsingResult -> parsingResult.result())
.collect(Collectors.toList());
}
private Stream> loadClasses() {
return ExtensionLoaders
.classpathToClass("META-INF/extension/" + extensionFileName)
.load()
.stream()
.peek(this::warnIfNotAction)
.filter(this::isAction)
.map(clazz -> (Class extends T>) clazz);
}
private void warnIfNotAction(Class> clazz) {
if (!isAction(clazz)) {
LOGGER.warn("Unable to load " + clazz.getName() + ": not a " + actionInterface.getName());
}
}
private boolean isAction(Class> clazz) {
return actionInterface.isAssignableFrom(clazz);
}
private void warnIfParsingError(ResultOrError parsingResult) {
if (parsingResult.isError()) {
LOGGER.warn("Unable to parse Action[" + parsingResult.error().actionClass().getName() + "]: " + parsingResult.error().errorMessage());
}
}
}
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