org.apache.maven.model.interpolation.UrlNormalizingPostProcessor Maven / Gradle / Ivy

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/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * 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
 * "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 org.apache.maven.model.interpolation;

import java.util.HashSet;
import java.util.Set;

import org.apache.maven.model.path.UrlNormalizer;
import org.codehaus.plexus.interpolation.InterpolationPostProcessor;

/**
 * Ensures that expressions referring to URLs evaluate to normalized URLs.
 *
 * @author Benjamin Bentmann
 */
class UrlNormalizingPostProcessor implements InterpolationPostProcessor {

    private static final Set URL_EXPRESSIONS;

    static {
        Set expressions = new HashSet<>();
        expressions.add("project.url");
        expressions.add("project.scm.url");
        expressions.add("project.scm.connection");
        expressions.add("project.scm.developerConnection");
        expressions.add("project.distributionManagement.site.url");

        URL_EXPRESSIONS = expressions;
    }

    private UrlNormalizer normalizer;

    UrlNormalizingPostProcessor(UrlNormalizer normalizer) {
        this.normalizer = normalizer;
    }

    @Override
    public Object execute(String expression, Object value) {
        if (value != null && URL_EXPRESSIONS.contains(expression)) {
            return normalizer.normalize(value.toString());
        }

        return null;
    }
}