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FeatureConfiguration.java
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FeatureConfiguration.java
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/*-
* #%L
* JSQLParser library
* %%
* Copyright (C) 2004 - 2020 JSQLParser
* %%
* Dual licensed under GNU LGPL 2.1 or Apache License 2.0
* #L%
*/
package net.sf.jsqlparser.parser.feature;
import java.util.EnumMap;
import java.util.EnumSet;
import java.util.Map;
import java.util.logging.Level;
import java.util.logging.Logger;
public class FeatureConfiguration {
private static final Logger LOG = Logger.getLogger(FeatureConfiguration.class.getName());
private Map<Feature, Object> featureEnabled = new EnumMap<>(Feature.class);
public FeatureConfiguration() {
// set default-value for all switchable features
EnumSet.allOf(Feature.class).stream().filter(Feature::isConfigurable)
.forEach(f -> setValue(f, f.getDefaultValue()));
}
/**
* @param feature
* @param value
* @return <code>this</code>
*/
public FeatureConfiguration setValue(Feature feature, Object value) {
if (feature.isConfigurable()) {
featureEnabled.put(feature, value);
} else {
if (LOG.isLoggable(Level.WARNING)) {
LOG.warning(feature.name() + " is not switchable - cannot set enabled = " + value);
}
}
return this;
}
/**
* @param feature
* @return the configured feature value - can be <code>null</code>
* @throws IllegalStateException - if given {@link Feature#isConfigurable()} ==
* false
*/
public Object getValue(Feature feature) {
if (feature.isConfigurable()) {
return featureEnabled.get(feature);
} else {
throw new IllegalStateException("The feature " + feature + " is not configurable!");
}
}
public boolean getAsBoolean(Feature f) {
return Boolean.parseBoolean(String.valueOf(getValue(f)));
}
public Integer getAsInteger(Feature f) {
return Integer.valueOf(String.valueOf(getValue(f)));
}
public String getAsString(Feature f) {
Object value = getValue(f);
return value == null ? null : String.valueOf(value);
}
}