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//
// ========================================================================
// Copyright (c) 1995 Mort Bay Consulting Pty Ltd and others.
//
// This program and the accompanying materials are made available under the
// terms of the Eclipse Public License v. 2.0 which is available at
// https://www.eclipse.org/legal/epl-2.0, or the Apache License, Version 2.0
// which is available at https://www.apache.org/licenses/LICENSE-2.0.
//
// SPDX-License-Identifier: EPL-2.0 OR Apache-2.0
// ========================================================================
//
package org.eclipse.jetty.ee10.maven.plugin;
import java.io.BufferedWriter;
import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import java.nio.file.Files;
import java.nio.file.Path;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;
import java.util.Properties;
import java.util.stream.Collectors;
import org.eclipse.jetty.ee10.quickstart.QuickStartConfiguration;
import org.eclipse.jetty.server.Server;
import org.eclipse.jetty.util.StringUtil;
import org.eclipse.jetty.util.resource.CombinedResource;
import org.eclipse.jetty.util.resource.Resource;
import org.eclipse.jetty.util.resource.ResourceFactory;
import org.eclipse.jetty.xml.XmlConfiguration;
/**
* WebAppPropertyConverter
*
* Converts a webapp's configuration to a properties file, and
* vice versa.
*/
public class WebAppPropertyConverter
{
public static String WEB_XML = "web.xml";
public static String QUICKSTART_WEB_XML = "quickstart.web.xml";
public static String CONTEXT_XML = "context.xml";
public static String CONTEXT_PATH = "context.path";
public static String TMP_DIR = "tmp.dir";
public static String TMP_DIR_PERSIST = "tmp.dir.persist";
public static String BASE_DIRS = "base.dirs";
public static String WAR_FILE = "war.file";
public static String CLASSES_DIR = "classes.dir";
public static String TEST_CLASSES_DIR = "testClasses.dir";
public static String LIB_JARS = "lib.jars";
public static String DEFAULTS_DESCRIPTOR = "web.default.xml";
public static String OVERRIDE_DESCRIPTORS = "web.overrides.xml";
//TODO :Support defaults descriptor!
/**
* Convert a webapp to properties stored in a file.
*
* @param webApp the webapp to convert
* @param propsFile the file to put the properties into
* @param contextXml the optional context xml file related to the webApp
* @throws IOException if any I/O exception occurs
*/
public static void toProperties(MavenWebAppContext webApp, File propsFile, String contextXml)
throws IOException
{
if (webApp == null)
throw new IllegalArgumentException("No webapp");
if (propsFile == null)
throw new IllegalArgumentException("No properties file");
//work out the configuration based on what is configured in the pom
if (propsFile.exists())
propsFile.delete();
propsFile.createNewFile();
Properties props = new Properties();
//web.xml
if (webApp.getDescriptor() != null)
{
props.put(WEB_XML, webApp.getDescriptor());
}
Object tmp = webApp.getAttribute(QuickStartConfiguration.QUICKSTART_WEB_XML);
if (tmp != null)
{
props.put(QUICKSTART_WEB_XML, tmp.toString());
}
//sort out the context path
if (webApp.getContextPath() != null)
{
props.put(CONTEXT_PATH, webApp.getContextPath());
}
//tmp dir
props.put(TMP_DIR, webApp.getTempDirectory().getAbsolutePath());
//props.put("tmp.dir.persist", Boolean.toString(originalPersistTemp));
props.put(TMP_DIR_PERSIST, Boolean.toString(webApp.isTempDirectoryPersistent()));
//send over the calculated resource bases that includes unpacked overlays
Resource baseResource = webApp.getBaseResource();
if (baseResource instanceof CombinedResource)
props.put(BASE_DIRS, toCSV(((CombinedResource)webApp.getBaseResource()).getResources()));
else if (baseResource instanceof Resource)
props.put(BASE_DIRS, webApp.getBaseResource().toString());
//if there is a war file, use that
if (webApp.getWar() != null)
props.put(WAR_FILE, webApp.getWar());
//web-inf classes
if (webApp.getClasses() != null)
{
props.put(CLASSES_DIR, webApp.getClasses().getAbsolutePath());
}
if (webApp.getTestClasses() != null)
{
props.put(TEST_CLASSES_DIR, webApp.getTestClasses().getAbsolutePath());
}
//web-inf lib
List deps = webApp.getWebInfLib();
StringBuilder strbuff = new StringBuilder();
if (deps != null)
{
for (int i = 0; i < deps.size(); i++)
{
File d = deps.get(i);
strbuff.append(d.getAbsolutePath());
if (i < deps.size() - 1)
strbuff.append(",");
}
}
props.put(LIB_JARS, strbuff.toString());
//context xml to apply
if (contextXml != null)
props.put(CONTEXT_XML, contextXml);
if (webApp.getDefaultsDescriptor() != null)
props.put(DEFAULTS_DESCRIPTOR, webApp.getDefaultsDescriptor());
if (webApp.getOverrideDescriptors() != null)
{
props.put(OVERRIDE_DESCRIPTORS, String.join(",", webApp.getOverrideDescriptors()));
}
try (BufferedWriter out = Files.newBufferedWriter(propsFile.toPath()))
{
props.store(out, "properties for webapp");
}
}
/**
* Configure a webapp from a properties file.
*
* @param webApp the webapp to configure
* @param resource the properties file to apply
* @param server the Server instance to use
* @param jettyProperties jetty properties to use if there is a context xml file to apply
* @throws Exception if there is an unspecified problem
*/
public static void fromProperties(MavenWebAppContext webApp, String resource, Server server, Map jettyProperties)
throws Exception
{
if (resource == null)
throw new IllegalStateException("No resource");
fromProperties(webApp, webApp.getResourceFactory().newResource(resource).getPath(), server, jettyProperties);
}
/**
* Configure a webapp from properties.
*
* @param webApp the webapp to configure
* @param webAppProperties properties that describe the configuration of the webapp
* @param server the jetty Server instance
* @param jettyProperties jetty properties
*
* @throws Exception if there is an unspecified problem
*/
public static void fromProperties(MavenWebAppContext webApp, Properties webAppProperties, Server server, Map jettyProperties)
throws Exception
{
if (webApp == null)
throw new IllegalArgumentException("No webapp");
if (webAppProperties == null)
return;
String str = webAppProperties.getProperty(CONTEXT_PATH);
if (!StringUtil.isBlank(str))
webApp.setContextPath(str);
// - web.xml
str = webAppProperties.getProperty(WEB_XML);
if (!StringUtil.isBlank(str))
webApp.setDescriptor(str);
//if there is a pregenerated quickstart file
str = webAppProperties.getProperty(QUICKSTART_WEB_XML);
if (!StringUtil.isBlank(str))
{
webApp.setAttribute(QuickStartConfiguration.QUICKSTART_WEB_XML, webApp.getResourceFactory().newResource(str));
}
// - the tmp directory
str = webAppProperties.getProperty(TMP_DIR);
if (!StringUtil.isBlank(str))
webApp.setTempDirectory(new File(str.trim()));
str = webAppProperties.getProperty(TMP_DIR_PERSIST);
if (!StringUtil.isBlank(str))
webApp.setTempDirectoryPersistent(Boolean.valueOf(str));
//Get the calculated base dirs which includes the overlays
str = webAppProperties.getProperty(BASE_DIRS);
if (!StringUtil.isBlank(str))
{
// This is a use provided list of overlays, which could have mountable entries.
webApp.setWar(null);
webApp.setBaseResource(ResourceFactory.combine(webApp.getResourceFactory().split(str)));
}
str = webAppProperties.getProperty(WAR_FILE);
if (!StringUtil.isBlank(str))
{
webApp.setWar(str);
}
// - the equivalent of web-inf classes
str = webAppProperties.getProperty(CLASSES_DIR);
if (!StringUtil.isBlank(str))
{
webApp.setClasses(new File(str));
}
str = webAppProperties.getProperty(TEST_CLASSES_DIR);
if (!StringUtil.isBlank(str))
{
webApp.setTestClasses(new File(str));
}
// - the equivalent of web-inf lib
str = webAppProperties.getProperty(LIB_JARS);
if (!StringUtil.isBlank(str))
{
List jars = new ArrayList();
String[] names = StringUtil.csvSplit(str);
for (int j = 0; names != null && j < names.length; j++)
{
jars.add(new File(names[j].trim()));
}
webApp.setWebInfLib(jars);
}
//any defaults descriptor
str = (String)webAppProperties.getProperty(DEFAULTS_DESCRIPTOR);
if (!StringUtil.isBlank(str))
{
webApp.setDefaultsDescriptor(str);
}
//any override descriptors
str = (String)webAppProperties.getProperty(OVERRIDE_DESCRIPTORS);
if (!StringUtil.isBlank(str))
{
String[] names = StringUtil.csvSplit(str);
for (int j = 0; names != null && j < names.length; j++)
{
webApp.addOverrideDescriptor(names[j]);
}
}
//set up the webapp from the context xml file provided
//NOTE: just like jetty:run mojo this means that the context file can
//potentially override settings made in the pom. Ideally, we'd like
//the pom to override the context xml file, but as the other mojos all
//configure a WebAppContext in the pom (the element), it is
//already configured by the time the context xml file is applied.
str = (String)webAppProperties.getProperty(CONTEXT_XML);
if (!StringUtil.isBlank(str))
{
XmlConfiguration xmlConfiguration = new XmlConfiguration(webApp.getResourceFactory().newResource(str));
xmlConfiguration.getIdMap().put("Server", server);
//add in any properties
if (jettyProperties != null)
{
for (Map.Entry prop : jettyProperties.entrySet())
{
xmlConfiguration.getProperties().put(prop.getKey(), prop.getValue());
}
}
xmlConfiguration.configure(webApp);
}
}
/**
* Configure a webapp from a properties file
* @param webApp the webapp to configure
* @param propsFile the properties to apply
* @param server the Server instance to use if there is a context xml file to apply
* @param jettyProperties jetty properties to use if there is a context xml file to apply
* @throws Exception if there is an unspecified problem
*/
public static void fromProperties(MavenWebAppContext webApp, Path propsFile, Server server, Map jettyProperties)
throws Exception
{
if (propsFile == null)
throw new IllegalArgumentException("No properties file");
if (!Files.exists(propsFile))
throw new IllegalArgumentException(propsFile + " does not exist");
Properties props = new Properties();
try (InputStream in = Files.newInputStream(propsFile))
{
props.load(in);
}
fromProperties(webApp, props, server, jettyProperties);
}
/**
* Convert an array of Resources to csv file names
*
* @param resources the resources to convert
* @return csv string of resource filenames
*/
private static String toCSV(List resources)
{
return resources.stream().map(Object::toString).collect(Collectors.joining(","));
}
}
