org.apache.maven.model.interpolation.ProblemDetectingValueSource Maven / Gradle / Ivy
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* to you 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
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* specific language governing permissions and limitations
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*/
package org.apache.maven.model.interpolation;
import java.util.List;
import org.apache.maven.model.building.ModelProblem.Severity;
import org.apache.maven.model.building.ModelProblem.Version;
import org.apache.maven.model.building.ModelProblemCollector;
import org.apache.maven.model.building.ModelProblemCollectorRequest;
import org.codehaus.plexus.interpolation.ValueSource;
/**
* Wraps another value source and intercepts interpolated expressions, checking for problems.
*
* @author Benjamin Bentmann
*/
class ProblemDetectingValueSource implements ValueSource {
private final ValueSource valueSource;
private final String bannedPrefix;
private final String newPrefix;
private final ModelProblemCollector problems;
ProblemDetectingValueSource(
ValueSource valueSource, String bannedPrefix, String newPrefix, ModelProblemCollector problems) {
this.valueSource = valueSource;
this.bannedPrefix = bannedPrefix;
this.newPrefix = newPrefix;
this.problems = problems;
}
@Override
public Object getValue(String expression) {
Object value = valueSource.getValue(expression);
if (value != null && expression.startsWith(bannedPrefix)) {
String msg = "The expression ${" + expression + "} is deprecated.";
if (newPrefix != null && newPrefix.length() > 0) {
msg += " Please use ${" + newPrefix + expression.substring(bannedPrefix.length()) + "} instead.";
}
problems.add(new ModelProblemCollectorRequest(Severity.WARNING, Version.V20).setMessage(msg));
}
return value;
}
@Override
public List getFeedback() {
return valueSource.getFeedback();
}
@Override
public void clearFeedback() {
valueSource.clearFeedback();
}
}