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org.appng.maven.plugin.mojo.AbstractGeneratorMojo Maven / Gradle / Ivy

/*
 * Copyright 2011-2021 the original author 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 org.appng.maven.plugin.mojo;

import java.io.File;
import java.io.IOException;
import java.util.Arrays;

import javax.xml.bind.JAXBException;

import org.apache.maven.plugin.AbstractMojo;
import org.apache.maven.plugin.MojoExecutionException;
import org.apache.maven.plugin.MojoFailureException;
import org.apache.maven.plugins.annotations.Component;
import org.apache.maven.plugins.annotations.Parameter;
import org.sonatype.plexus.build.incremental.BuildContext;

abstract class AbstractGeneratorMojo extends AbstractMojo {

	/**
	 * the path to the source file
	 */
	@Parameter(property = "filePath", required = true)
	protected File filePath;

	/**
	 * the fully qualified name of the target class to generate
	 */
	@Parameter(property = "targetClass", required = true)
	protected String targetClass;

	/**
	 * the output-folder for the generated class
	 */
	@Parameter(property = "outFolder", defaultValue = "target/generated-sources/constants", required = false)
	protected File outfolder;

	/**
	 * skips the execution
	 */
	@Parameter(property = "skip", defaultValue = "false", required = false)
	protected boolean skip;

	@Component
	protected BuildContext buildContext;

	@Override
	public void execute() throws MojoExecutionException, MojoFailureException {
		if (skip) {
			getLog().info("skipping " + getMessage());
			return;
		}
		if (needsToBeExecuted()) {
			try {
				getLog().info(getMessage() + " for " + Arrays.toString(getArgs()));
				createConstantClass();
				buildContext.refresh(outfolder.getAbsoluteFile());
			} catch (Exception e) {
				buildContext.addMessage(filePath, 0, 0, "unable to " + getMessage(), BuildContext.SEVERITY_ERROR, e);
				throw new MojoExecutionException("unable to " + getMessage(), e);
			}
		} else {
			getLog().debug("no creation needed: " + getMessage());
		}
		getLog().debug("delta: " + buildContext.hasDelta(filePath));
		getLog().debug("incremental: " + buildContext.isIncremental());
	}

	protected abstract void createConstantClass() throws IOException, JAXBException;

	protected abstract String getMessage();

	protected abstract String[] getArgs();

	protected boolean needsToBeExecuted() {
		return buildContext.hasDelta(filePath);
	}
}




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