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Layouts.java
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Layouts.java
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/*
* Copyright 2012-2021 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
*
* https://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.tools;
import java.io.File;
import java.util.Collections;
import java.util.HashMap;
import java.util.Locale;
import java.util.Map;
/**
* Common {@link Layout}s.
*
* @author Phillip Webb
* @author Dave Syer
* @author Andy Wilkinson
* @author Madhura Bhave
* @author Scott Frederick
* @since 1.0.0
*/
public final class Layouts {
private Layouts() {
}
/**
* Return a layout for the given source file.
* @param file the source file
* @return a {@link Layout}
*/
public static Layout forFile(File file) {
if (file == null) {
throw new IllegalArgumentException("File must not be null");
}
String lowerCaseFileName = file.getName().toLowerCase(Locale.ENGLISH);
if (lowerCaseFileName.endsWith(".jar")) {
return new Jar();
}
if (lowerCaseFileName.endsWith(".war")) {
return new War();
}
if (file.isDirectory() || lowerCaseFileName.endsWith(".zip")) {
return new Expanded();
}
throw new IllegalStateException("Unable to deduce layout for '" + file + "'");
}
/**
* Executable JAR layout.
*/
public static class Jar implements RepackagingLayout {
@Override
public String getLauncherClassName() {
return "org.springframework.boot.loader.JarLauncher";
}
@Override
public String getLibraryLocation(String libraryName, LibraryScope scope) {
return "BOOT-INF/lib/";
}
@Override
public String getClassesLocation() {
return "";
}
@Override
public String getRepackagedClassesLocation() {
return "BOOT-INF/classes/";
}
@Override
public String getClasspathIndexFileLocation() {
return "BOOT-INF/classpath.idx";
}
@Override
public String getLayersIndexFileLocation() {
return "BOOT-INF/layers.idx";
}
@Override
public boolean isExecutable() {
return true;
}
}
/**
* Executable expanded archive layout.
*/
public static class Expanded extends Jar {
@Override
public String getLauncherClassName() {
return "org.springframework.boot.loader.PropertiesLauncher";
}
}
/**
* No layout.
*/
public static class None extends Jar {
@Override
public String getLauncherClassName() {
return null;
}
@Override
public boolean isExecutable() {
return false;
}
}
/**
* Executable WAR layout.
*/
public static class War implements Layout {
private static final Map<LibraryScope, String> SCOPE_LOCATION;
static {
Map<LibraryScope, String> locations = new HashMap<>();
locations.put(LibraryScope.COMPILE, "WEB-INF/lib/");
locations.put(LibraryScope.CUSTOM, "WEB-INF/lib/");
locations.put(LibraryScope.RUNTIME, "WEB-INF/lib/");
locations.put(LibraryScope.PROVIDED, "WEB-INF/lib-provided/");
SCOPE_LOCATION = Collections.unmodifiableMap(locations);
}
@Override
public String getLauncherClassName() {
return "org.springframework.boot.loader.WarLauncher";
}
@Override
public String getLibraryLocation(String libraryName, LibraryScope scope) {
return SCOPE_LOCATION.get(scope);
}
@Override
public String getClassesLocation() {
return "WEB-INF/classes/";
}
@Override
public String getLayersIndexFileLocation() {
return "WEB-INF/layers.idx";
}
@Override
public boolean isExecutable() {
return true;
}
}
}