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AbstractGeneratorMojo.java
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AbstractGeneratorMojo.java
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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.camel.maven.packaging;
import java.io.IOError;
import java.io.IOException;
import java.io.Writer;
import java.nio.charset.StandardCharsets;
import java.nio.file.Files;
import java.nio.file.Path;
import java.util.Collections;
import java.util.Objects;
import org.apache.maven.plugin.AbstractMojo;
import org.apache.maven.plugins.annotations.Component;
import org.apache.maven.plugins.annotations.Parameter;
import org.apache.maven.project.MavenProject;
import org.apache.maven.project.MavenProjectHelper;
import org.sonatype.plexus.build.incremental.BuildContext;
public abstract class AbstractGeneratorMojo extends AbstractMojo {
public static final String GENERATED_MSG = "Generated by camel build tools";
public static final String NL = "\n";
/**
* The maven project.
*/
@Parameter(property = "project", required = true, readonly = true)
protected MavenProject project;
/**
* Maven ProjectHelper.
*/
@Component
protected MavenProjectHelper projectHelper;
/**
* build context to check changed files and mark them for refresh (used for
* m2e compatibility)
*/
@Component
protected BuildContext buildContext;
protected void addResourceDirectory(Path path) {
projectHelper.addResource(project, path.toString(), Collections.singletonList("**/*"), Collections.emptyList());
}
public void refresh(Path file) {
refresh(buildContext, file);
}
protected void updateResource(Path out, String data) {
updateResource(buildContext, out, data);
}
protected String createProperties(String key, String val) {
return createProperties(project, key, val);
}
public static String createProperties(MavenProject project, String key, String val) {
String data;
StringBuilder properties = new StringBuilder();
properties.append("# " + GENERATED_MSG + NL);
properties.append(key).append("=").append(val).append(NL);
properties.append("groupId=").append(project.getGroupId()).append(NL);
properties.append("artifactId=").append(project.getArtifactId()).append(NL);
properties.append("version=").append(project.getVersion()).append(NL);
properties.append("projectName=").append(project.getName()).append(NL);
if (project.getDescription() != null) {
properties.append("projectDescription=").append(project.getDescription()).append(NL);
}
data = properties.toString();
return data;
}
public static void refresh(BuildContext buildContext, Path file) {
if (buildContext != null) {
buildContext.refresh(file.toFile());
}
}
public static void updateResource(BuildContext buildContext, Path out, String data) {
try {
if (data == null) {
if (Files.isRegularFile(out)) {
Files.delete(out);
refresh(buildContext, out);
}
} else {
if (Files.isRegularFile(out) && Files.isReadable(out)) {
String content = new String(Files.readAllBytes(out), StandardCharsets.UTF_8);
if (Objects.equals(content, data)) {
return;
}
}
Files.createDirectories(out.getParent());
try (Writer w = Files.newBufferedWriter(out, StandardCharsets.UTF_8)) {
w.append(data);
}
refresh(buildContext, out);
}
} catch (IOException e) {
throw new IOError(e);
}
}
}