/*
* Copyright 2012-2014 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.net.URLDecoder;
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.boot.loader.util.AsciiBytes;
import static org.hamcrest.Matchers.equalTo;
import static org.hamcrest.Matchers.greaterThan;
import static org.hamcrest.Matchers.nullValue;
import static org.junit.Assert.assertNotNull;
import static org.junit.Assert.assertThat;
/**
* Tests for {@link ExplodedArchive}.
*
* @author Phillip Webb
* @author Dave Syer
*/
public class ExplodedArchiveTests {
@Rule
public TemporaryFolder temporaryFolder = new TemporaryFolder();
private File rootFolder;
private ExplodedArchive archive;
@Before
public void setup() throws Exception {
File file = this.temporaryFolder.newFile();
TestJarCreator.createTestJar(file);
this.rootFolder = 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"),
equalTo("j1"));
}
@Test
public void getEntries() throws Exception {
Map<String, Archive.Entry> entries = getEntriesMap(this.archive);
assertThat(entries.size(), equalTo(9));
}
@Test
public void getUrl() throws Exception {
URL url = this.archive.getUrl();
assertThat(new File(URLDecoder.decode(url.getFile(), "UTF-8")),
equalTo(this.rootFolder));
}
@Test
public void getNestedArchive() throws Exception {
Entry entry = getEntriesMap(this.archive).get("nested.jar");
Archive nested = this.archive.getNestedArchive(entry);
assertThat(nested.getUrl().toString(), equalTo("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(), equalTo(1));
assertThat(nested.getUrl().toString(), equalTo("file:"
+ this.rootFolder.toURI().getPath() + "d/"));
}
@Test
public void getFilteredArchive() throws Exception {
Archive filteredArchive = this.archive
.getFilteredArchive(new Archive.EntryRenameFilter() {
@Override
public AsciiBytes apply(AsciiBytes entryName, Entry entry) {
if (entryName.toString().equals("1.dat")) {
return entryName;
}
return null;
}
});
Map<String, Entry> entries = getEntriesMap(filteredArchive);
assertThat(entries.size(), equalTo(1));
URLClassLoader classLoader = new URLClassLoader(
new URL[] { filteredArchive.getUrl() });
assertThat(classLoader.getResourceAsStream("1.dat").read(), equalTo(1));
assertThat(classLoader.getResourceAsStream("2.dat"), nullValue());
classLoader.close();
}
@Test
public void getNonRecursiveEntriesForRoot() throws Exception {
ExplodedArchive archive = new ExplodedArchive(new File("/"), false);
Map<String, Archive.Entry> entries = getEntriesMap(archive);
assertThat(entries.size(), greaterThan(1));
}
@Test
public void getNonRecursiveManifest() throws Exception {
ExplodedArchive archive = new ExplodedArchive(new File("src/test/resources/root"));
assertNotNull(archive.getManifest());
Map<String, Archive.Entry> entries = getEntriesMap(archive);
assertThat(entries.size(), equalTo(4));
}
@Test
public void getNonRecursiveManifestEvenIfNonRecursive() throws Exception {
ExplodedArchive archive = new ExplodedArchive(
new File("src/test/resources/root"), false);
assertNotNull(archive.getManifest());
Map<String, Archive.Entry> entries = getEntriesMap(archive);
assertThat(entries.size(), equalTo(3));
}
@Test
public void getResourceAsStream() throws Exception {
ExplodedArchive archive = new ExplodedArchive(new File("src/test/resources/root"));
assertNotNull(archive.getManifest());
URLClassLoader loader = new URLClassLoader(new URL[] { archive.getUrl() });
assertNotNull(loader.getResourceAsStream("META-INF/spring/application.xml"));
loader.close();
}
@Test
public void getResourceAsStreamNonRecursive() throws Exception {
ExplodedArchive archive = new ExplodedArchive(
new File("src/test/resources/root"), false);
assertNotNull(archive.getManifest());
URLClassLoader loader = new URLClassLoader(new URL[] { archive.getUrl() });
assertNotNull(loader.getResourceAsStream("META-INF/spring/application.xml"));
loader.close();
}
private Map<String, Archive.Entry> getEntriesMap(Archive archive) {
Map<String, Archive.Entry> entries = new HashMap<String, Archive.Entry>();
for (Archive.Entry entry : archive.getEntries()) {
entries.put(entry.getName().toString(), entry);
}
return entries;
}
}