/*
 * 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.plugin.coreit;

import java.io.File;
import java.io.IOException;

import org.apache.maven.plugin.AbstractMojo;
import org.apache.maven.plugin.MojoExecutionException;
import org.apache.maven.plugin.MojoFailureException;
import org.apache.maven.plugins.annotations.LifecyclePhase;
import org.apache.maven.plugins.annotations.Mojo;
import org.apache.maven.plugins.annotations.Parameter;
import org.apache.maven.project.MavenProject;

/**
 * Creates a text file in the project base directory.
 *
 *
 * @author Benjamin Bentmann
 *
 */
@Mojo(name = "generate-application-xml", defaultPhase = LifecyclePhase.GENERATE_RESOURCES)
public class GenerateApplicationXmlMojo extends AbstractMojo {

    /**
     * The current Maven project.
     */
    @Parameter(defaultValue = "${project}", required = true, readonly = true)
    private MavenProject project;

    /**
     * The path to the output file, relative to the project base directory.
     *
     */
    @Parameter
    private String pathname = "target/ear-generate-application-xml.txt";

    /**
     * Runs this mojo.
     *
     * @throws MojoExecutionException If the output file could not be created.
     * @throws MojoFailureException If the output file has not been set.
     */
    public void execute() throws MojoExecutionException, MojoFailureException {
        getLog().info("[MAVEN-CORE-IT-LOG] Using output file path: " + pathname);

        if (pathname == null || pathname.length() <= 0) {
            throw new MojoFailureException("Path name for output file has not been specified");
        }

        File outputFile = new File(pathname);
        if (!outputFile.isAbsolute()) {
            outputFile = new File(project.getBasedir(), pathname).getAbsoluteFile();
        }

        getLog().info("[MAVEN-CORE-IT-LOG] Creating output file: " + outputFile);

        try {
            outputFile.getParentFile().mkdirs();
            outputFile.createNewFile();
        } catch (IOException e) {
            throw new MojoExecutionException("Output file could not be created: " + pathname, e);
        }

        getLog().info("[MAVEN-CORE-IT-LOG] Created output file: " + outputFile);
    }
}