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Signed-off-by: Jan N. Klug <github@klug.nrw>
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...in/java/org/openhab/core/automation/module/script/internal/ScriptEngineFactoryHelper.java
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/** | ||
* Copyright (c) 2010-2023 Contributors to the openHAB project | ||
* | ||
* See the NOTICE file(s) distributed with this work for additional | ||
* information. | ||
* | ||
* This program and the accompanying materials are made available under the | ||
* terms of the Eclipse Public License 2.0 which is available at | ||
* http://www.eclipse.org/legal/epl-2.0 | ||
* | ||
* SPDX-License-Identifier: EPL-2.0 | ||
*/ | ||
package org.openhab.core.automation.module.script.internal; | ||
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import java.util.ArrayList; | ||
import java.util.List; | ||
import java.util.Map; | ||
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import javax.script.ScriptEngine; | ||
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import org.eclipse.jdt.annotation.NonNullByDefault; | ||
import org.eclipse.jdt.annotation.Nullable; | ||
import org.openhab.core.automation.module.script.ScriptEngineFactory; | ||
import org.slf4j.Logger; | ||
import org.slf4j.LoggerFactory; | ||
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/** | ||
* The {@link ScriptEngineFactoryHelper} contains helper methods for handling script engines | ||
* | ||
* @author Jan N. Klug - Initial contribution | ||
*/ | ||
@NonNullByDefault | ||
public class ScriptEngineFactoryHelper { | ||
private static final Logger LOGGER = LoggerFactory.getLogger(ScriptEngineFactoryHelper.class); | ||
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private ScriptEngineFactoryHelper() { | ||
// prevent instantiation of static utility class | ||
} | ||
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public static Map.@Nullable Entry<String, String> getParameterOption(ScriptEngineFactory engineFactory) { | ||
List<String> scriptTypes = engineFactory.getScriptTypes(); | ||
if (!scriptTypes.isEmpty()) { | ||
ScriptEngine scriptEngine = engineFactory.createScriptEngine(scriptTypes.get(0)); | ||
if (scriptEngine != null) { | ||
Map.Entry<String, String> parameterOption = Map.entry(getPreferredMimeType(engineFactory), | ||
getLanguageName(scriptEngine.getFactory())); | ||
LOGGER.trace("ParameterOptions: {}", parameterOption); | ||
return parameterOption; | ||
} else { | ||
LOGGER.trace("setScriptEngineFactory: engine was null"); | ||
} | ||
} else { | ||
LOGGER.trace("addScriptEngineFactory: scriptTypes was empty"); | ||
} | ||
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return null; | ||
} | ||
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public static String getPreferredMimeType(ScriptEngineFactory factory) { | ||
List<String> mimeTypes = new ArrayList<>(factory.getScriptTypes()); | ||
mimeTypes.removeIf(mimeType -> !mimeType.contains("application") || "application/python".equals(mimeType)); | ||
return mimeTypes.isEmpty() ? factory.getScriptTypes().get(0) : mimeTypes.get(0); | ||
} | ||
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public static String getLanguageName(javax.script.ScriptEngineFactory factory) { | ||
return String.format("%s (%s)", | ||
factory.getLanguageName().substring(0, 1).toUpperCase() + factory.getLanguageName().substring(1), | ||
factory.getLanguageVersion()); | ||
} | ||
} |
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