/*
* Copyright 2012-2017 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.springframework.boot.devtools.tests;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
import java.util.jar.Attributes;
import java.util.jar.JarOutputStream;
import java.util.jar.Manifest;
import java.util.zip.ZipEntry;
import org.springframework.util.FileSystemUtils;
import org.springframework.util.StreamUtils;
import org.springframework.util.StringUtils;
/**
* {@link ApplicationLauncher} that launches a remote application with its classes in a
* jar file.
*
* @author Andy Wilkinson
*/
public class JarFileRemoteApplicationLauncher extends RemoteApplicationLauncher {
@Override
protected String createApplicationClassPath() throws Exception {
File appDirectory = new File("target/app");
FileSystemUtils.deleteRecursively(appDirectory);
appDirectory.mkdirs();
Manifest manifest = new Manifest();
manifest.getMainAttributes().put(Attributes.Name.MANIFEST_VERSION, "1.0");
JarOutputStream output = new JarOutputStream(
new FileOutputStream(new File(appDirectory, "app.jar")), manifest);
FileSystemUtils.copyRecursively(new File("target/test-classes/com"),
new File("target/app/com"));
addToJar(output, new File("target/app/"), new File("target/app/"));
output.close();
List<String> entries = new ArrayList<>();
entries.add("target/app/app.jar");
for (File jar : new File("target/dependencies").listFiles()) {
entries.add(jar.getAbsolutePath());
}
String classpath = StringUtils.collectionToDelimitedString(entries,
File.pathSeparator);
return classpath;
}
private void addToJar(JarOutputStream output, File root, File current)
throws IOException {
for (File file : current.listFiles()) {
if (file.isDirectory()) {
addToJar(output, root, file);
}
output.putNextEntry(new ZipEntry(
file.getAbsolutePath().substring(root.getAbsolutePath().length() + 1)
.replace("\\", "/") + (file.isDirectory() ? "/" : "")));
if (file.isFile()) {
StreamUtils.copy(new FileInputStream(file), output);
}
output.closeEntry();
}
}
@Override
public String toString() {
return "jar file remote";
}
}