core-it-suite/src/test/resources/mng-3746/maven-mng3746-plugin/src/main/java/jar/MyMojo.java

/*
 * 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 jar;

/*
 * Copyright 2001-2005 The Apache Software Foundation.
 *
 * 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.
 */

import java.util.Properties;

import org.apache.maven.plugin.AbstractMojo;
import org.apache.maven.plugin.MojoExecutionException;

/**
 * @goal test
 */
public class MyMojo extends AbstractMojo {
    /**
     * @parameter
     * @required
     */
    private String check;

    /**
     * @parameter expression="${test.verification}"
     */
    private String verification;

    /**
     * @parameter expression="${test.usingCliValue}" default-value="false"
     */
    private boolean usingCliValue;

    /**
     * @parameter default-value="${project.properties}"
     * @readonly
     */
    private Properties properties;

    public void execute() throws MojoExecutionException {
        String sysProp = System.getProperty("java.version");
        String pomProp = properties.getProperty("java.version");

        boolean fail = false;

        if (!usingCliValue) {
            if (check.equals(sysProp)) {
                getLog().error("Check value is the same as the system property; interpolation failed! (value: " + check
                        + ")");
                fail = true;
            }

            if (!check.equals(pomProp)) {
                getLog().error("Check value is NOT the same as the POM property; interpolation failed! (value: " + check
                        + ")");
                fail = true;
            }
        } else if (!check.equals(verification)) {
            getLog().error("Check value is NOT the same as the verification value; interpolation failed! (value: "
                    + check + "; verification value: " + verification + ")");
            fail = true;
        }

        if (fail) {
            throw new MojoExecutionException(
                    "Failed to verify interpolation with POM override of a system property. See console output for more information.");
        }
    }
}