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/*
* $Id: Compiler.java 2377 2008-11-10 15:31:11Z jponge $
* IzPack - Copyright 2001-2008 Julien Ponge, All Rights Reserved.
*
* http://izpack.org/
* http://izpack.codehaus.org/
*
* Copyright 2001 Johannes Lehtinen
* Copyright 2002 Paul Wilkinson
* Copyright 2004 Gaganis Giorgos
*
*
* 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 com.izforge.izpack.compiler;
import com.izforge.izpack.*;
import com.izforge.izpack.compressor.PackCompressor;
import com.izforge.izpack.installer.InstallerRequirement;
import com.izforge.izpack.rules.Condition;
import com.izforge.izpack.util.Debug;
import com.izforge.izpack.util.OsConstraint;
import com.izforge.izpack.util.VariableSubstitutor;
import java.io.File;
import java.net.MalformedURLException;
import java.net.URL;
import java.util.*;
import java.util.jar.JarInputStream;
import java.util.zip.ZipEntry;
/**
* The IzPack compiler class. This is now a java bean style class that can be
* configured using the object representations of the install.xml
* configuration. The install.xml configuration is now handled by the
* CompilerConfig class.
*
* @author Julien Ponge
* @author Tino Schwarze
* @author Chadwick McHenry
* @see CompilerConfig
*/
public class Compiler extends Thread
{
/**
* The IzPack version.
*/
public final static String IZPACK_VERSION = "4.1.1";
/**
* The IzPack home directory.
*/
public static String IZPACK_HOME = ".";
/**
* The base directory.
*/
protected String basedir;
/**
* The installer kind.
*/
protected String kind;
/**
* The output jar filename.
*/
protected String output;
/**
* Collects and packs files into installation jars, as told.
*/
private IPackager packager = null;
/**
* Error code, set to true if compilation succeeded.
*/
private boolean compileFailed = true;
/**
* Key/values which are substituted at compile time in the install data
*/
private Properties properties;
/**
* Replaces the properties in the install.xml file prior to compiling
*/
private VariableSubstitutor propertySubstitutor;
private String compr_format;
private int compr_level;
private PackagerListener packagerlistener;
/**
* Set the IzPack home directory
*
* @param izHome - the izpack home directory
*/
public static void setIzpackHome(String izHome)
{
IZPACK_HOME = izHome;
}
/**
* The constructor.
*
* @param basedir The base directory.
* @param kind The installer kind.
* @param output The installer filename.
* @throws CompilerException
*/
public Compiler(String basedir, String kind, String output) throws CompilerException
{
this(basedir, kind, output, "default");
}
/**
* The constructor.
*
* @param basedir The base directory.
* @param kind The installer kind.
* @param output The installer filename.
* @param compr_format The format which should be used for the packs.
* @throws CompilerException
*/
public Compiler(String basedir, String kind, String output, String compr_format) throws CompilerException
{
this(basedir, kind, output, compr_format, -1);
}
/**
* The constructor.
*
* @param basedir The base directory.
* @param kind The installer kind.
* @param output The installer filename.
* @param compr_format The format which should be used for the packs.
* @param compr_level Compression level to be used if supported.
* @throws CompilerException
*/
public Compiler(String basedir, String kind, String output,
String compr_format, int compr_level) throws CompilerException
{
// Default initialisation
this.basedir = basedir;
this.kind = kind;
this.output = output;
// initialize backed by system properties
properties = new Properties(System.getProperties());
propertySubstitutor = new VariableSubstitutor(properties);
// add izpack built in property
setProperty("izpack.version", IZPACK_VERSION);
setProperty("basedir", basedir);
this.compr_format = compr_format;
this.compr_level = compr_level;
}
/**
* Initializes the given packager class
*
* @param classname
* @throws CompilerException
*/
public void initPackager(String classname) throws CompilerException
{
try
{
packager = PackagerFactory.getPackager(classname);
packager.initPackCompressor(this.compr_format, this.compr_level);
PackCompressor compressor = packager.getCompressor();
if (compressor != null)
{
compressor.setCompiler(this);
}
if (this.packagerlistener != null)
{
packager.setPackagerListener(this.packagerlistener);
}
}
catch (Exception e)
{
Debug.trace(e);
throw new CompilerException("Error loading packager class: " + classname);
}
}
/**
* Returns the packager listener.
*
* @return the packager listener
*/
public PackagerListener getPackagerListener()
{
return packager.getPackagerListener();
}
/**
* Sets the packager listener.
*
* @param listener The listener.
*/
public void setPackagerListener(PackagerListener listener)
{
if (packager != null)
{
packager.setPackagerListener(listener);
}
else
{
this.packagerlistener = listener;
}
}
/**
* Access the installation kind.
*
* @return the installation kind.
*/
public String getKind()
{
return kind;
}
/**
* Get the packager variables.
*
* @return the packager variables
*/
public Properties getVariables()
{
return packager.getVariables();
}
/**
* Compiles.
*/
public void compile()
{
start();
}
/**
* The run() method.
*/
public void run()
{
try
{
createInstaller(); // Execute the compiler - may send info to
// System.out
}
catch (CompilerException ce)
{
System.out.println(ce.getMessage() + "\n");
}
catch (Exception e)
{
if (Debug.stackTracing())
{
e.printStackTrace();
}
else
{
System.out.println("ERROR: " + e.getMessage());
}
}
}
/**
* Compiles the installation.
*
* @throws Exception Description of the Exception
*/
public void createInstaller() throws Exception
{
// Add the class files from the chosen compressor.
if (packager.getCompressor().getContainerPaths() != null)
{
String[] containerPaths = packager.getCompressor().getContainerPaths();
String[][] decoderClassNames = packager.getCompressor().getDecoderClassNames();
for (int i = 0; i < containerPaths.length; ++i)
{
URL compressorURL = null;
if (containerPaths[i] != null)
{
compressorURL = findIzPackResource(containerPaths[i], "pack compression Jar file");
}
if (decoderClassNames[i] != null && decoderClassNames[i].length > 0)
{
addJarContent(compressorURL, Arrays.asList(decoderClassNames[i]));
}
}
}
// We ask the packager to create the installer
packager.createInstaller(new File(output));
this.compileFailed = false;
}
/**
* Returns whether the installation was successful or not.
*
* @return whether the installation was successful or not
*/
public boolean wasSuccessful()
{
return !this.compileFailed;
}
/**
* Replaces placeholder in the given string with the associated strings.
*
* @param value to be substituted
* @return the substituted string
*/
public String replaceProperties(String value)
{
return propertySubstitutor.substitute(value, "at");
}
/**
* Sets GUI preferences to the packager.
*
* @param prefs preferences to be set
*/
public void setGUIPrefs(GUIPrefs prefs)
{
packager.setGUIPrefs(prefs);
}
/**
* Sets an Info object to the packager.
*
* @param info Info object to be set
* @throws Exception
*/
public void setInfo(Info info) throws Exception
{
packager.setInfo(info);
}
/**
* Returns the install packager.
*
* @return the install packager.
*/
public IPackager getPackager()
{
return packager;
}
/**
* Returns the properties currently known to the compileer.
*
* @return the properties currently known to the compileer
*/
public Properties getProperties()
{
return properties;
}
/**
* Get the value of a property currerntly known to izpack.
*
* @param name the name of the property
* @return the value of the property, or null
*/
public String getProperty(String name)
{
return properties.getProperty(name);
}
/**
* Add a name value pair to the project property set. Overwriting any existing value except system properties.
*
* @param name the name of the property
* @param value the value to set
* @return an indicator if the name value pair was added.
*/
public boolean setProperty(String name, String value)
{
if (System.getProperties().containsKey(name))
{
return false;
}
properties.put(name, value);
return true;
}
/**
* Add a name value pair to the project property set. It is not replaced it is already
* in the set of properties.
*
* @param name the name of the property
* @param value the value to set
* @return true if the property was not already set
*/
public boolean addProperty(String name, String value)
{
String old = properties.getProperty(name);
if (old == null)
{
properties.put(name, value);
return true;
}
return false;
}
/**
* Add jar content to the installation.
*
* @param content
*/
public void addJarContent(URL content)
{
packager.addJarContent(content);
}
/**
* Adds a jar file content to the installer. Package structure is maintained. Need mechanism to
* copy over signed entry information. If the given file list is null the hole contents of the
* jar file will be copied else only the listed.
*
* @param content The url of the jar to add to the installer. We use a URL so the jar may be
* nested within another.
* @param files to be copied
*/
public void addJarContent(URL content, List files)
{
packager.addJarContent(content, files);
}
/**
* Add a custom jar to the installation.
*
* @param ca
* @param url
*/
public void addCustomJar(CustomData ca, URL url)
{
packager.addCustomJar(ca, url);
}
public void addInstallerRequirement(List conditions){
packager.addInstallerRequirements(conditions);
}
/**
* Add a lang pack to the installation.
*
* @param locale
* @param localeURL
* @param flagURL
*/
public void addLangPack(String locale, URL localeURL, URL flagURL)
{
packager.addLangPack(locale, localeURL, flagURL);
}
/**
* Add a native library to the installation.
*
* @param name
* @param url
* @throws Exception
*/
public void addNativeLibrary(String name, URL url) throws Exception
{
packager.addNativeLibrary(name, url);
}
/**
* Add an unistaller library.
*
* @param data
*/
public void addNativeUninstallerLibrary(CustomData data)
{
packager.addNativeUninstallerLibrary(data);
}
/**
* Add a pack to the installation.
*
* @param pack
*/
public void addPack(PackInfo pack)
{
packager.addPack(pack);
}
/**
* Add a panel jar to the installation.
*
* @param panel
* @param url
*/
public void addPanelJar(Panel panel, URL url)
{
packager.addPanelJar(panel, url);
}
/**
* Add a resource to the installation.
*
* @param name
* @param url
*/
public void addResource(String name, URL url)
{
packager.addResource(name, url);
}
/**
* Checks whether the dependencies stated in the configuration file are correct. Specifically it
* checks that no pack point to a non existent pack and also that there are no circular
* dependencies in the packs.
*
* @throws CompilerException
*/
public void checkDependencies() throws CompilerException
{
checkDependencies(packager.getPacksList());
}
/**
* Checks whether the excluded packs exist. (simply calles the other function)
*
* @throws CompilerException
*/
public void checkExcludes() throws CompilerException
{
checkExcludes(packager.getPacksList());
}
/**
* This checks if there are more than one preselected packs per excludeGroup.
*
* @param packs list of packs which should be checked
* @throws CompilerException
*/
public void checkExcludes(List packs) throws CompilerException
{
for (int q = 0; q < packs.size(); q++)
{
PackInfo packinfo1 = packs.get(q);
Pack pack1 = packinfo1.getPack();
for (int w = 0; w < q; w++)
{
PackInfo packinfo2 = packs.get(w);
Pack pack2 = packinfo2.getPack();
if (pack1.excludeGroup != null && pack2.excludeGroup != null)
{
if (pack1.excludeGroup.equals(pack2.excludeGroup))
{
if (pack1.preselected && pack2.preselected)
{
parseError("Packs " + pack1.name + " and " + pack2.name +
" belong to the same excludeGroup " + pack1.excludeGroup +
" and are both preselected. This is not allowed.");
}
}
}
}
}
}
/**
* Checks whether the dependencies among the given Packs. Specifically it
* checks that no pack point to a non existent pack and also that there are no circular
* dependencies in the packs.
*
* @param packs - List representing the packs in the installation
* @throws CompilerException
*/
public void checkDependencies(List packs) throws CompilerException
{
// Because we use package names in the configuration file we assosiate
// the names with the objects
Map names = new HashMap();
for (PackInfo pack : packs)
{
names.put(pack.getPack().name, pack);
}
int result = dfs(packs, names);
// @todo More informative messages to include the source of the error
if (result == -2)
{
parseError("Circular dependency detected");
}
else if (result == -1)
{
parseError("A dependency doesn't exist");
}
}
/**
* We use the dfs graph search algorithm to check whether the graph is acyclic as described in:
* Thomas H. Cormen, Charles Leiserson, Ronald Rivest and Clifford Stein. Introduction to
* algorithms 2nd Edition 540-549,MIT Press, 2001
*
* @param packs The graph
* @param names The name map
* @return -2 if back edges exist, else 0
*/
private int dfs(List packs, Map names)
{
Map edges = new HashMap();
for (PackInfo pack : packs)
{
if (pack.colour == PackInfo.WHITE)
{
if (dfsVisit(pack, names, edges) != 0)
{
return -1;
}
}
}
return checkBackEdges(edges);
}
/**
* This function checks for the existence of back edges.
*
* @param edges map to be checked
* @return -2 if back edges exist, else 0
*/
private int checkBackEdges(Map edges)
{
Set keys = edges.keySet();
for (final Edge key : keys)
{
int color = edges.get(key);
if (color == PackInfo.GREY)
{
return -2;
}
}
return 0;
}
/**
* This class is used for the classification of the edges
*/
private class Edge
{
PackInfo u;
PackInfo v;
Edge(PackInfo u, PackInfo v)
{
this.u = u;
this.v = v;
}
}
private int dfsVisit(PackInfo u, Map names, Map edges)
{
u.colour = PackInfo.GREY;
List deps = u.getDependencies();
if (deps != null)
{
for (String name : deps)
{
PackInfo v = names.get(name);
if (v == null)
{
System.out.println("Failed to find dependency: " + name);
return -1;
}
Edge edge = new Edge(u, v);
if (edges.get(edge) == null)
{
edges.put(edge, v.colour);
}
if (v.colour == PackInfo.WHITE)
{
final int result = dfsVisit(v, names, edges);
if (result != 0)
{
return result;
}
}
}
}
u.colour = PackInfo.BLACK;
return 0;
}
/**
* Look for an IzPack resource either in the compiler jar, or within IZPACK_HOME. The path must
* not be absolute. The path must use '/' as the fileSeparator (it's used to access the jar
* file). If the resource is not found, a CompilerException is thrown indicating fault in the
* parent element.
*
* @param path the relative path (using '/' as separator) to the resource.
* @param desc the description of the resource used to report errors
* @return a URL to the resource.
* @throws CompilerException
*/
public URL findIzPackResource(String path, String desc)
throws CompilerException
{
URL url = getClass().getResource("/" + path);
if (url == null)
{
File resource = new File(path);
if (!resource.isAbsolute())
{
resource = new File(IZPACK_HOME, path);
}
if (!resource.exists()) // fatal
{
parseError(desc + " not found: " + resource);
}
try
{
url = resource.toURI().toURL();
}
catch (MalformedURLException how)
{
parseError(desc + "(" + resource + ")", how);
}
}
return url;
}
/**
* Create parse error with consistent messages. Includes file name. For use When parent is
* unknown.
*
* @param message Brief message explaining error
* @throws CompilerException
*/
public void parseError(String message) throws CompilerException
{
this.compileFailed = true;
throw new CompilerException(message);
}
/**
* Create parse error with consistent messages. Includes file name. For use When parent is
* unknown.
*
* @param message Brief message explaining error
* @param how throwable which was catched
* @throws CompilerException
*/
public void parseError(String message, Throwable how) throws CompilerException
{
this.compileFailed = true;
throw new CompilerException(message, how);
}
/**
* The main method if the compiler is invoked by a command-line call.
* This simply calls the CompilerConfig.main method.
*
* @param args The arguments passed on the command-line.
*/
public static void main(String[] args)
{
CompilerConfig.main(args);
}
// -------------------------------------------------------------------------
// ------------- Listener stuff ------------------------- START ------------
/**
* This method parses install.xml for defined listeners and put them in the right position. If
* posible, the listeners will be validated. Listener declaration is a fragmention in
* install.xml like : <listeners> <listener compiler="PermissionCompilerListener"
* installer="PermissionInstallerListener"/1gt; </listeners>
*
* @param type The listener type.
* @param className The class name.
* @param jarPath The jar path.
* @param constraints The list of constraints.
* @throws Exception Thrown in case an error occurs.
*/
public void addCustomListener(int type, String className, String jarPath, List constraints) throws Exception
{
jarPath = replaceProperties(jarPath);
URL url = findIzPackResource(jarPath, "CustomAction jar file");
List filePaths = getContainedFilePaths(url);
String fullClassName = getFullClassName(url, className);
if (fullClassName == null)
{
throw new CompilerException("CustomListener class '" + className + "' not found in '"
+ url + "'. The class and listener name must match");
}
CustomData ca = new CustomData(fullClassName, filePaths, constraints, type);
packager.addCustomJar(ca, url);
}
/**
* Returns a list which contains the pathes of all files which are included in the given url.
* This method expects as the url param a jar.
*
* @param url url of the jar file
* @return full qualified paths of the contained files
* @throws Exception
*/
private List getContainedFilePaths(URL url) throws Exception
{
JarInputStream jis = new JarInputStream(url.openStream());
ZipEntry zentry = null;
ArrayList fullNames = new ArrayList();
while ((zentry = jis.getNextEntry()) != null)
{
String name = zentry.getName();
// Add only files, no directory entries.
if (!zentry.isDirectory())
{
fullNames.add(name);
}
}
jis.close();
return (fullNames);
}
/**
* Returns the qualified class name for the given class. This method expects as the url param a
* jar file which contains the given class. It scans the zip entries of the jar file.
*
* @param url url of the jar file which contains the class
* @param className short name of the class for which the full name should be resolved
* @return full qualified class name
* @throws Exception
*/
private String getFullClassName(URL url, String className) throws Exception
{
JarInputStream jis = new JarInputStream(url.openStream());
ZipEntry zentry = null;
while ((zentry = jis.getNextEntry()) != null)
{
String name = zentry.getName();
int lastPos = name.lastIndexOf(".class");
if (lastPos < 0)
{
continue; // No class file.
}
name = name.replace('/', '.');
int pos = -1;
if (className != null)
{
pos = name.indexOf(className);
if (name.length() == pos + className.length() + 6) // "Main" class
// found
{
jis.close();
return (name.substring(0, lastPos));
}
}
}
jis.close();
return (null);
}
// -------------------------------------------------------------------------
// ------------- Listener stuff ------------------------- END ------------
/**
* Used to handle the packager messages in the command-line mode.
*
* @author julien created October 26, 2002
*/
static class CmdlinePackagerListener implements PackagerListener
{
/**
* Print a message to the console at default priority (MSG_INFO).
*
* @param info The information.
*/
public void packagerMsg(String info)
{
packagerMsg(info, MSG_INFO);
}
/**
* Print a message to the console at the specified priority.
*
* @param info The information.
* @param priority priority to be used for the message prefix
*/
public void packagerMsg(String info, int priority)
{
final String prefix;
switch (priority)
{
case MSG_DEBUG:
prefix = "[ DEBUG ] ";
break;
case MSG_ERR:
prefix = "[ ERROR ] ";
break;
case MSG_WARN:
prefix = "[ WARNING ] ";
break;
case MSG_INFO:
case MSG_VERBOSE:
default: // don't die, but don't prepend anything
prefix = "";
}
System.out.println(prefix + info);
}
/**
* Called when the packager starts.
*/
public void packagerStart()
{
System.out.println("[ Begin ]");
System.out.println();
}
/**
* Called when the packager stops.
*/
public void packagerStop()
{
System.out.println();
System.out.println("[ End ]");
}
}
/**
* @return the conditions
*/
public Map getConditions()
{
return this.packager.getRules();
}
/**
* @param conditions the conditions to set
*/
public void setConditions(Map conditions)
{
this.packager.setRules(conditions);
}
public Map> getDynamicVariables()
{
return this.packager.getDynamicVariables();
}
public void setDynamicVariables(Map> dynamicvariables)
{
this.packager.setDynamicVariables(dynamicvariables);
}
}
