org.springframework.boot.gradle.tasks.bundling.LaunchScriptConfiguration Maven / Gradle / Ivy
/*
* Copyright 2012-2020 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.gradle.tasks.bundling;
import java.io.File;
import java.io.IOException;
import java.io.Serializable;
import java.util.HashMap;
import java.util.Map;
import java.util.regex.Pattern;
import org.gradle.api.Project;
import org.gradle.api.tasks.bundling.AbstractArchiveTask;
import org.springframework.boot.loader.tools.FileUtils;
/**
* Encapsulates the configuration of the launch script for an executable jar or war.
*
* @author Andy Wilkinson
* @since 2.0.0
*/
@SuppressWarnings("serial")
public class LaunchScriptConfiguration implements Serializable {
private static final Pattern WHITE_SPACE_PATTERN = Pattern.compile("\\s+");
private static final Pattern LINE_FEED_PATTERN = Pattern.compile("\n");
private final Map properties = new HashMap<>();
private File script;
public LaunchScriptConfiguration() {
}
LaunchScriptConfiguration(AbstractArchiveTask archiveTask) {
Project project = archiveTask.getProject();
String baseName = archiveTask.getArchiveBaseName().get();
putIfMissing(this.properties, "initInfoProvides", baseName);
putIfMissing(this.properties, "initInfoShortDescription", removeLineBreaks(project.getDescription()), baseName);
putIfMissing(this.properties, "initInfoDescription", augmentLineBreaks(project.getDescription()), baseName);
}
/**
* Returns the properties that are applied to the launch script when it's being
* including in the executable archive.
* @return the properties
*/
public Map getProperties() {
return this.properties;
}
/**
* Sets the properties that are applied to the launch script when it's being including
* in the executable archive.
* @param properties the properties
*/
public void properties(Map properties) {
this.properties.putAll(properties);
}
/**
* Returns the script {@link File} that will be included in the executable archive.
* When {@code null}, the default launch script will be used.
* @return the script file
*/
public File getScript() {
return this.script;
}
/**
* Sets the script {@link File} that will be included in the executable archive. When
* {@code null}, the default launch script will be used.
* @param script the script file
*/
public void setScript(File script) {
this.script = script;
}
@Override
public boolean equals(Object obj) {
if (this == obj) {
return true;
}
if (obj == null || getClass() != obj.getClass()) {
return false;
}
LaunchScriptConfiguration other = (LaunchScriptConfiguration) obj;
if (!this.properties.equals(other.properties)) {
return false;
}
if (this.script == null) {
return other.script == null;
}
else if (!this.script.equals(other.script)) {
return false;
}
else {
return equalContents(this.script, other.script);
}
}
private boolean equalContents(File one, File two) {
try {
return FileUtils.sha1Hash(one).equals(FileUtils.sha1Hash(two));
}
catch (IOException ex) {
return false;
}
}
@Override
public int hashCode() {
final int prime = 31;
int result = 1;
result = prime * result + this.properties.hashCode();
result = prime * result + ((this.script == null) ? 0 : this.script.hashCode());
return result;
}
private String removeLineBreaks(String string) {
return (string != null) ? WHITE_SPACE_PATTERN.matcher(string).replaceAll(" ") : null;
}
private String augmentLineBreaks(String string) {
return (string != null) ? LINE_FEED_PATTERN.matcher(string).replaceAll("\n# ") : null;
}
private void putIfMissing(Map properties, String key, String... valueCandidates) {
if (!properties.containsKey(key)) {
for (String candidate : valueCandidates) {
if (candidate != null && !candidate.isEmpty()) {
properties.put(key, candidate);
return;
}
}
}
}
}