/*
* $Id$
*
* SARL is an general-purpose agent programming language.
* More details on http://www.sarl.io
*
* Copyright (C) 2014-2017 the original authors or authors.
*
* 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 io.sarl.lang.validation;
import java.util.Collections;
import java.util.HashMap;
import java.util.Map;
import javax.inject.Inject;
import javax.inject.Singleton;
import com.google.common.base.Strings;
import org.eclipse.emf.ecore.resource.Resource;
import org.eclipse.xtext.diagnostics.Severity;
import org.eclipse.xtext.preferences.IPreferenceValues;
import org.eclipse.xtext.preferences.IPreferenceValuesProvider;
import org.eclipse.xtext.preferences.PreferenceKey;
import org.eclipse.xtext.validation.ConfigurableIssueCodesProvider;
import org.eclipse.xtext.validation.IssueSeveritiesProvider;
import org.eclipse.xtext.validation.SeverityConverter;
/** A configurable issue severity provider.
*
* <p>This issue severity provider provides a public API for dynamically
* and programmatically changing the severity of the issues.
* For the Eclipse implementation of the provider, the standard severity provider
* gets the severity levels from the preferences.
* But, this configurable issue severity provider should not change the preferences.
* The contract is to have internal overriding of the preferences in this provider.
*
* @author $Author: sgalland$
* @version $FullVersion$
* @mavengroupid $GroupId$
* @mavenartifactid $ArtifactId$
* @since 0.5
*/
@Singleton
public class ConfigurableIssueSeveritiesProvider extends IssueSeveritiesProvider implements IConfigurableIssueSeveritiesProvider {
private final Map<String, Severity> overridingSeverities = Collections.synchronizedMap(new HashMap<>());
@Inject
private ConfigurableIssueCodesProvider issueCodesProvider;
@Override
protected IPreferenceValuesProvider getValuesProvider() {
final IPreferenceValuesProvider original = super.getValuesProvider();
if (this.overridingSeverities.isEmpty()) {
return original;
}
return new ConfigurableValueProvider(original, this.overridingSeverities);
}
@Override
public void setSeverity(String code, Severity severity) {
if (!Strings.isNullOrEmpty(code)) {
final PreferenceKey key = this.issueCodesProvider.getConfigurableIssueCodes().get(code);
if (key != null) {
if (severity == null) {
this.overridingSeverities.remove(key.getId());
} else {
this.overridingSeverities.put(key.getId(), severity);
}
}
}
}
@Override
public void setAllSeverities(Severity severity) {
this.overridingSeverities.clear();
if (severity != null) {
for (final PreferenceKey key : this.issueCodesProvider.getConfigurableIssueCodes().values()) {
if (key != null) {
this.overridingSeverities.put(key.getId(), severity);
}
}
}
}
/** Configurable value provider.
*
* @author $Author: sgalland$
* @version $FullVersion$
* @mavengroupid $GroupId$
* @mavenartifactid $ArtifactId$
* @since 0.5
*/
public static class ConfigurableValueProvider implements IPreferenceValuesProvider {
private final IPreferenceValuesProvider original;
private final Map<String, Severity> overridingSeverities;
/** Constructor.
*
* @param original the original value provider.
* @param overridingSeverities the overridings.
*/
public ConfigurableValueProvider(IPreferenceValuesProvider original, Map<String, Severity> overridingSeverities) {
this.original = original;
this.overridingSeverities = overridingSeverities;
}
@Override
public IPreferenceValues getPreferenceValues(Resource context) {
final IPreferenceValues values = this.original.getPreferenceValues(context);
return new ConfigurableValues(values, this.overridingSeverities);
}
}
/** Configurable values.
*
* @author $Author: sgalland$
* @version $FullVersion$
* @mavengroupid $GroupId$
* @mavenartifactid $ArtifactId$
* @since 0.5
*/
public static class ConfigurableValues implements IPreferenceValues {
private final IPreferenceValues original;
private final Map<String, Severity> overridingSeverities;
/** Constructor.
*
* @param original the original values.
* @param overridingSeverities the overridings.
*/
public ConfigurableValues(IPreferenceValues original, Map<String, Severity> overridingSeverities) {
this.original = original;
this.overridingSeverities = overridingSeverities;
}
@Override
public String getPreference(PreferenceKey key) {
if (key != null) {
final Severity severity = this.overridingSeverities.get(key.getId());
if (severity != null) {
switch (severity) {
case ERROR:
return SeverityConverter.SEVERITY_ERROR;
case IGNORE:
return SeverityConverter.SEVERITY_IGNORE;
case INFO:
return SeverityConverter.SEVERITY_INFO;
case WARNING:
return SeverityConverter.SEVERITY_WARNING;
default:
}
}
}
return this.original.getPreference(key);
}
}
}