org.eclipse.jetty.start.builders.StartIniBuilder Maven / Gradle / Ivy
//
// ========================================================================
// Copyright (c) 1995 Mort Bay Consulting Pty Ltd and others.
//
// This program and the accompanying materials are made available under the
// terms of the Eclipse Public License v. 2.0 which is available at
// https://www.eclipse.org/legal/epl-2.0, or the Apache License, Version 2.0
// which is available at https://www.apache.org/licenses/LICENSE-2.0.
//
// SPDX-License-Identifier: EPL-2.0 OR Apache-2.0
// ========================================================================
//
package org.eclipse.jetty.start.builders;
import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.IOException;
import java.nio.charset.StandardCharsets;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.StandardOpenOption;
import java.util.HashSet;
import java.util.List;
import java.util.Set;
import org.eclipse.jetty.start.BaseBuilder;
import org.eclipse.jetty.start.BaseHome;
import org.eclipse.jetty.start.Module;
import org.eclipse.jetty.start.Props;
import org.eclipse.jetty.start.StartLog;
/**
* Management of the ${jetty.base}/start.ini
based configuration.
*
* Implementation of the --add-module=[name]
command line behavior
*/
public class StartIniBuilder implements BaseBuilder.Config
{
private final BaseHome baseHome;
private final Path startIni;
/* List of modules already present in start.ini */
private Set modulesPresent = new HashSet<>();
/* List of properties (keys only) already present in start.ini */
private Set propsPresent = new HashSet<>();
public StartIniBuilder(BaseBuilder baseBuilder) throws IOException
{
this.baseHome = baseBuilder.getBaseHome();
this.startIni = baseHome.getBasePath("start.ini");
if (Files.exists(startIni))
{
parseIni();
}
}
private void parseIni() throws IOException
{
try (BufferedReader reader = Files.newBufferedReader(startIni, StandardCharsets.UTF_8))
{
String line;
while ((line = reader.readLine()) != null)
{
line = line.trim();
if (line.startsWith("--module="))
{
List moduleNames = Props.getValues(line);
this.modulesPresent.addAll(moduleNames);
}
else if (!line.startsWith("-") && line.contains("="))
{
String key = line.substring(0, line.indexOf('='));
this.propsPresent.add(key);
}
}
}
}
@Override
public String addModule(Module module, Props props) throws IOException
{
if (modulesPresent.contains(module.getName()))
{
StartLog.info("%-15s already initialised in %s", module.getName(), baseHome.toShortForm(startIni));
// skip, already present
return null;
}
if (module.isDynamic())
{
if (module.hasIniTemplate())
{
// warn
StartLog.warn("%-15s not adding [ini-template] from dynamic module", module.getName());
}
return null;
}
if (module.hasIniTemplate() || !module.isTransitive())
{
// Append to start.ini
try (BufferedWriter writer = Files.newBufferedWriter(startIni, StandardCharsets.UTF_8, StandardOpenOption.APPEND, StandardOpenOption.CREATE))
{
module.writeIniSection(writer, props);
}
return baseHome.toShortForm(startIni);
}
return null;
}
}