/*
* 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.loader.archive;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.net.URL;
import java.net.URLClassLoader;
import java.util.Enumeration;
import java.util.HashMap;
import java.util.Map;
import java.util.jar.JarEntry;
import java.util.jar.JarFile;
import org.junit.Before;
import org.junit.Rule;
import org.junit.Test;
import org.junit.rules.TemporaryFolder;
import org.springframework.boot.loader.TestJarCreator;
import org.springframework.boot.loader.archive.Archive.Entry;
import org.springframework.util.StringUtils;
import static org.assertj.core.api.Assertions.assertThat;
/**
* Tests for {@link ExplodedArchive}.
*
* @author Phillip Webb
* @author Dave Syer
* @author Andy Wilkinson
*/
public class ExplodedArchiveTests {
@Rule
public TemporaryFolder temporaryFolder = new TemporaryFolder();
private File rootFolder;
private ExplodedArchive archive;
@Before
public void setup() throws Exception {
createArchive();
}
private void createArchive() throws Exception {
createArchive(null);
}
private void createArchive(String folderName) throws Exception {
File file = this.temporaryFolder.newFile();
TestJarCreator.createTestJar(file);
this.rootFolder = StringUtils.hasText(folderName)
? this.temporaryFolder.newFolder(folderName)
: this.temporaryFolder.newFolder();
JarFile jarFile = new JarFile(file);
Enumeration<JarEntry> entries = jarFile.entries();
while (entries.hasMoreElements()) {
JarEntry entry = entries.nextElement();
File destination = new File(
this.rootFolder.getAbsolutePath() + File.separator + entry.getName());
destination.getParentFile().mkdirs();
if (entry.isDirectory()) {
destination.mkdir();
}
else {
copy(jarFile.getInputStream(entry), new FileOutputStream(destination));
}
}
this.archive = new ExplodedArchive(this.rootFolder);
jarFile.close();
}
private void copy(InputStream in, OutputStream out) throws IOException {
byte[] buffer = new byte[1024];
int len = in.read(buffer);
while (len != -1) {
out.write(buffer, 0, len);
len = in.read(buffer);
}
}
@Test
public void getManifest() throws Exception {
assertThat(this.archive.getManifest().getMainAttributes().getValue("Built-By"))
.isEqualTo("j1");
}
@Test
public void getEntries() throws Exception {
Map<String, Archive.Entry> entries = getEntriesMap(this.archive);
assertThat(entries.size()).isEqualTo(10);
}
@Test
public void getUrl() throws Exception {
assertThat(this.archive.getUrl()).isEqualTo(this.rootFolder.toURI().toURL());
}
@Test
public void getUrlWithSpaceInPath() throws Exception {
createArchive("spaces in the name");
assertThat(this.archive.getUrl()).isEqualTo(this.rootFolder.toURI().toURL());
}
@Test
public void getNestedArchive() throws Exception {
Entry entry = getEntriesMap(this.archive).get("nested.jar");
Archive nested = this.archive.getNestedArchive(entry);
assertThat(nested.getUrl().toString())
.isEqualTo("jar:" + this.rootFolder.toURI() + "nested.jar!/");
}
@Test
public void nestedDirArchive() throws Exception {
Entry entry = getEntriesMap(this.archive).get("d/");
Archive nested = this.archive.getNestedArchive(entry);
Map<String, Entry> nestedEntries = getEntriesMap(nested);
assertThat(nestedEntries.size()).isEqualTo(1);
assertThat(nested.getUrl().toString())
.isEqualTo("file:" + this.rootFolder.toURI().getPath() + "d/");
}
@Test
public void getNonRecursiveEntriesForRoot() throws Exception {
ExplodedArchive archive = new ExplodedArchive(new File("/"), false);
Map<String, Archive.Entry> entries = getEntriesMap(archive);
assertThat(entries.size()).isGreaterThan(1);
}
@Test
public void getNonRecursiveManifest() throws Exception {
ExplodedArchive archive = new ExplodedArchive(
new File("src/test/resources/root"));
assertThat(archive.getManifest()).isNotNull();
Map<String, Archive.Entry> entries = getEntriesMap(archive);
assertThat(entries.size()).isEqualTo(4);
}
@Test
public void getNonRecursiveManifestEvenIfNonRecursive() throws Exception {
ExplodedArchive archive = new ExplodedArchive(new File("src/test/resources/root"),
false);
assertThat(archive.getManifest()).isNotNull();
Map<String, Archive.Entry> entries = getEntriesMap(archive);
assertThat(entries.size()).isEqualTo(3);
}
@Test
public void getResourceAsStream() throws Exception {
ExplodedArchive archive = new ExplodedArchive(
new File("src/test/resources/root"));
assertThat(archive.getManifest()).isNotNull();
URLClassLoader loader = new URLClassLoader(new URL[] { archive.getUrl() });
assertThat(loader.getResourceAsStream("META-INF/spring/application.xml"))
.isNotNull();
loader.close();
}
@Test
public void getResourceAsStreamNonRecursive() throws Exception {
ExplodedArchive archive = new ExplodedArchive(new File("src/test/resources/root"),
false);
assertThat(archive.getManifest()).isNotNull();
URLClassLoader loader = new URLClassLoader(new URL[] { archive.getUrl() });
assertThat(loader.getResourceAsStream("META-INF/spring/application.xml"))
.isNotNull();
loader.close();
}
private Map<String, Archive.Entry> getEntriesMap(Archive archive) {
Map<String, Archive.Entry> entries = new HashMap<>();
for (Archive.Entry entry : archive) {
entries.put(entry.getName(), entry);
}
return entries;
}
}