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The Waikato Environment for Knowledge Analysis (WEKA), a machine
learning workbench. This version represents the developer version, the
"bleeding edge" of development, you could say. New functionality gets added
to this version.
/*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see metaData = new HashMap();
Set keys = m_packageMetaData.keySet();
Iterator i = keys.iterator();
while (i.hasNext()) {
Object key = i.next();
Object value = m_packageMetaData.get(key);
metaData.put(key, value);
}
newP.setPackageMetaData(metaData);
return newP;
}
/**
* Set the package manager for this package
*
* @param p the package manager to use
*/
public void setPackageManager(PackageManager p) {
m_packageManager = p;
}
/**
* Constructs an new DefaultPackage.
*
* @param packageHome the directory that packages are installed into.
* @param manager the package manager in use.
* @param packageMetaData A Map of package meta data for this package.
*/
public DefaultPackage(File packageHome, PackageManager manager,
Map packageMetaData) {
this(packageHome, manager);
setPackageMetaData(packageMetaData);
}
/**
* Constructs a new DefaultPackage.
*
* @param packageHome the directory that packages are installed into.
* @param manager the package manager in use.
*/
public DefaultPackage(File packageHome, PackageManager manager) {
m_packageHome = packageHome;
m_packageManager = manager;
}
/**
* Convenience method that returns the URL to the package (i.e the provider's
* URL). This information is assumed to be stored in the package meta data.
*
* @return the URL to the package or null if the URL is not available for some
* reason
* @throws Exception if the URL can't be retrieved for some reason
*/
@Override
public URL getPackageURL() throws Exception {
String url = getPackageMetaDataElement("PackageURL").toString().trim();
URL packageURL = new URL(url);
return packageURL;
}
/**
* Convenience method to return the name of this package.
*
* @return the name of this package.
*/
@Override
public String getName() {
return getPackageMetaDataElement("PackageName").toString();
}
protected static String[] splitNameVersion(String nameAndVersion) {
String[] result = new String[3];
nameAndVersion = nameAndVersion.trim();
if (nameAndVersion.indexOf('(') < 0) {
result[0] = nameAndVersion;
} else if (nameAndVersion.indexOf(')') >= 0) {
boolean ok = true;
result[0] = nameAndVersion.substring(0, nameAndVersion.indexOf('('));
result[0] = result[0].trim();
String secondInequality = null;
int delimiterIndex = nameAndVersion.indexOf('|');
if (delimiterIndex >= 0) {
secondInequality = nameAndVersion.substring(delimiterIndex + 1,
nameAndVersion.length());
secondInequality = secondInequality.trim();
String[] result2 = new String[5];
result2[0] = result[0];
result = result2;
} else {
delimiterIndex = nameAndVersion.length();
}
nameAndVersion = nameAndVersion.substring(
nameAndVersion.indexOf('(') + 1, delimiterIndex);
nameAndVersion = nameAndVersion.trim();
int pos = 1;
if (nameAndVersion.charAt(0) == '=') {
result[1] = "=";
} else if (nameAndVersion.charAt(1) == '=') {
pos++;
if (nameAndVersion.charAt(0) == '<') {
result[1] = "<=";
} else {
result[1] = ">=";
}
} else if (nameAndVersion.charAt(0) == '<') {
result[1] = "<";
} else if (nameAndVersion.charAt(0) == '>') {
result[1] = ">";
} else {
ok = false;
}
if (ok) {
if (secondInequality != null) {
delimiterIndex = nameAndVersion.length();
} else {
delimiterIndex = nameAndVersion.indexOf(')');
}
nameAndVersion = nameAndVersion.substring(pos, delimiterIndex);
result[2] = nameAndVersion.trim();
}
// do the second inequality (if present)
if (secondInequality != null) {
ok = true;
pos = 1;
if (secondInequality.charAt(0) == '=') {
result[3] = "=";
} else if (secondInequality.charAt(1) == '=') {
pos++;
if (secondInequality.charAt(0) == '<') {
result[3] = "<=";
} else {
result[3] = ">=";
}
} else if (secondInequality.charAt(0) == '<') {
result[3] = "<";
} else if (secondInequality.charAt(0) == '>') {
result[3] = ">";
} else {
ok = false;
}
if (ok) {
secondInequality = secondInequality.substring(pos,
secondInequality.indexOf(')'));
result[4] = secondInequality.trim();
}
}
}
return result;
}
/**
* Get the list of packages that this package depends on.
*
* @return the list of packages that this package depends on.
* @throws Exception if a problem occurs while getting the list of
* dependencies.
*/
@Override
public List getDependencies() throws Exception {
List dependencies = new ArrayList();
String dependenciesS = getPackageMetaDataElement("Depends").toString();
if (dependenciesS != null) {
StringTokenizer tok = new StringTokenizer(dependenciesS, ",");
while (tok.hasMoreTokens()) {
String nextT = tok.nextToken().trim();
String[] split = splitNameVersion(nextT);
Package toAdd = null;
// don't include the base system!
if (!(split[0].equalsIgnoreCase(m_packageManager.getBaseSystemName()))) {
// gets the latest version of this package if split[2] is null
toAdd = m_packageManager.getRepositoryPackageInfo(split[0], split[2]);
if (split.length == 3) {
VersionPackageConstraint versionConstraint = new VersionPackageConstraint(
toAdd);
if (split[2] == null) {
// assume anything up to and including the current version is
// acceptable
versionConstraint
.setVersionConstraint(VersionPackageConstraint.VersionComparison.LESSTHANOREQUAL);
} else {
versionConstraint.setVersionConstraint(split[1]);
}
Dependency dep = new Dependency(this, versionConstraint);
dependencies.add(dep);
} else {
// ranged constraint
VersionRangePackageConstraint versionConstraint = new VersionRangePackageConstraint(
toAdd);
VersionPackageConstraint.VersionComparison comp1 = VersionPackageConstraint
.getVersionComparison(split[1]);
VersionPackageConstraint.VersionComparison comp2 = VersionPackageConstraint
.getVersionComparison(split[3]);
versionConstraint.setRangeConstraint(split[2], comp1, split[4],
comp2);
Dependency dep = new Dependency(this, versionConstraint);
dependencies.add(dep);
}
}
}
}
return dependencies;
}
/**
* Gets the dependency on the base system that this package requires.
*
* @return the base system dependency(s) for this package
* @throws Exception if the base system dependency can't be determined for
* some reason.
*/
@Override
public List getBaseSystemDependency() throws Exception {
String dependenciesS = getPackageMetaDataElement("Depends").toString();
Dependency baseDep = null;
List baseDeps = new ArrayList();
if (dependenciesS != null) {
StringTokenizer tok = new StringTokenizer(dependenciesS, ",");
while (tok.hasMoreTokens()) {
String nextT = tok.nextToken().trim();
String[] split = splitNameVersion(nextT);
if ((split[0].equalsIgnoreCase(m_packageManager.getBaseSystemName()))) {
// construct a "dummy" package for the base system
Map baseMap = new HashMap();
baseMap.put("PackageName", "weka");
// use a suitably ridiculous max version number if one hasn't been
// supplied
// for some reason
split[2] = (split[2] == null ? "1000.1000.1000" : split[2]);
baseMap.put("Version", split[2]);
Package basePackage = new DefaultPackage(null, m_packageManager,
baseMap);
if (split.length == 3) {
VersionPackageConstraint baseConstraint = new VersionPackageConstraint(
basePackage);
VersionPackageConstraint.VersionComparison baseComp = VersionPackageConstraint.VersionComparison.LESSTHANOREQUAL;
if (split[1] != null) {
baseComp = VersionPackageConstraint
.getVersionComparison(split[1]);
}
baseConstraint.setVersionConstraint(baseComp);
baseDep = new Dependency(this, baseConstraint);
baseDeps.add(baseDep);
} else {
// ranged constraint
VersionRangePackageConstraint baseConstraint = new VersionRangePackageConstraint(
basePackage);
VersionPackageConstraint.VersionComparison comp1 = VersionPackageConstraint
.getVersionComparison(split[1]);
VersionPackageConstraint.VersionComparison comp2 = VersionPackageConstraint
.getVersionComparison(split[3]);
baseConstraint.setRangeConstraint(split[2], comp1, split[4], comp2);
baseDep = new Dependency(this, baseConstraint);
}
}
}
}
if (baseDeps.size() == 0) {
throw new Exception("[Package] "
+ getPackageMetaDataElement("PackageName").toString()
+ " can't determine what version of the base system is required!!");
}
return baseDeps;
}
private boolean findPackage(String packageName, List packageList) {
boolean found = false;
Iterator i = packageList.iterator();
while (i.hasNext()) {
Package p = i.next();
String pName = p.getPackageMetaDataElement("PackageName").toString();
if (packageName.equals(pName)) {
found = true;
break;
}
}
return found;
}
/**
* Gets a list of packages that this package depends on that are not in the
* supplied list of packages.
*
* @param packages a list of packages to compare this package's dependencies
* against.
* @return those packages that this package depends on that aren't in the
* supplied list.
* @throws Exception if the list of missing depenencies can't be determined
* for some reason.
*/
@Override
public List getMissingDependencies(List packages)
throws Exception {
List missing = new ArrayList();
String dependencies = getPackageMetaDataElement("Depends").toString();
if (dependencies != null) {
StringTokenizer tok = new StringTokenizer(dependencies, ",");
while (tok.hasMoreTokens()) {
String nextT = tok.nextToken().trim();
String[] split = splitNameVersion(nextT);
// don't consider the base system!
if (!(split[0].equalsIgnoreCase(m_packageManager.getBaseSystemName()))) {
// gets the latest version of this package if split[2] is null
Package tempDep = m_packageManager.getRepositoryPackageInfo(split[0],
split[2]);
if (!findPackage(split[0], packages)) {
VersionPackageConstraint versionConstraint = new VersionPackageConstraint(
tempDep);
if (split[2] == null) {
// assume anything up to and including the current version is
// acceptable
versionConstraint
.setVersionConstraint(VersionPackageConstraint.VersionComparison.LESSTHANOREQUAL);
missing.add(new Dependency(this, versionConstraint));
} else {
if (split.length == 3) {
versionConstraint.setVersionConstraint(split[1]);
missing.add(new Dependency(this, versionConstraint));
} else {
VersionRangePackageConstraint versionRConstraint = new VersionRangePackageConstraint(
tempDep);
VersionPackageConstraint.VersionComparison comp1 = VersionPackageConstraint
.getVersionComparison(split[1]);
VersionPackageConstraint.VersionComparison comp2 = VersionPackageConstraint
.getVersionComparison(split[3]);
versionRConstraint.setRangeConstraint(split[2], comp1,
split[4], comp2);
missing.add(new Dependency(this, versionRConstraint));
}
}
}
}
}
}
return missing;
}
/**
* Gets a list of packages that this package depends on that are not currently
* installed.
*
* @return a list of missing packages that this package depends on.
*/
@Override
public List getMissingDependencies() throws Exception {
List installedPackages = m_packageManager.getInstalledPackages();
String dependencies = getPackageMetaDataElement("Depends").toString();
return getMissingDependencies(installedPackages);
/*
* if (dependencies != null) { StringTokenizer tok = new
* StringTokenizer(dependencies, ","); while (tok.hasMoreTokens()) { String
* nextT = tok.nextToken().trim(); String[] split = splitNameVersion(nextT);
*
* // don't consider the base system! if
* (!(split[0].equalsIgnoreCase(m_packageManager.getBaseSystemName()))) {
*
* // gets the latest version of this package if split[2] is null Package
* tempDep = m_packageManager.getRepositoryPackageInfo(split[0], split[2]);
* if (!tempDep.isInstalled()) { VersionPackageConstraint versionConstraint
* = new VersionPackageConstraint(tempDep); if (split[2] == null) { //
* assume anything up to and including the current version is acceptable
* versionConstraint.
* setVersionConstraint(VersionPackageConstraint.VersionComparison
* .LESSTHANOREQUAL); } else {
* versionConstraint.setVersionConstraint(split[1]); }
*
* missing.add(new Dependency(this, versionConstraint)); } } } }
*
* return missing;
*/
}
/**
* Gets those packages from the supplied list that this package depends on and
* are currently incompatible with this package.
*
* @param packages a list of packages to compare this package's dependencies
* against
* @return those packages from the supplied list that are incompatible with
* respect to this package's dependencies
* @throws Exception if the list of incompatible dependencies can't be
* generated for some reason.
*/
@Override
public List getIncompatibleDependencies(List packages)
throws Exception {
List incompatible = new ArrayList();
String dependencies = getPackageMetaDataElement("Depends").toString();
if (dependencies != null) {
StringTokenizer tok = new StringTokenizer(dependencies, ",");
while (tok.hasMoreTokens()) {
String nextT = tok.nextToken().trim();
String[] splitD = splitNameVersion(nextT);
// check only if a version number was supplied in the dependency list.
if (splitD[1] != null && splitD[2] != null) {
for (Package p : packages) {
String packageNameI = p.getPackageMetaDataElement("PackageName")
.toString();
if (packageNameI.trim().equalsIgnoreCase(splitD[0].trim())) {
// now check version against this one
String versionI = p.getPackageMetaDataElement("Version")
.toString().trim();
// String[] splitI = splitNameVersion(versionI);
if (splitD.length == 3) {
VersionPackageConstraint.VersionComparison constraint = VersionPackageConstraint
.getVersionComparison(splitD[1]);
if (!VersionPackageConstraint.checkConstraint(versionI,
constraint, splitD[2])) {
VersionPackageConstraint vpc = new VersionPackageConstraint(p);
vpc.setVersionConstraint(constraint);
incompatible.add(new Dependency(this, vpc));
}
} else {
VersionRangePackageConstraint versionRConstraint = new VersionRangePackageConstraint(
p);
VersionPackageConstraint.VersionComparison comp1 = VersionPackageConstraint
.getVersionComparison(splitD[1]);
VersionPackageConstraint.VersionComparison comp2 = VersionPackageConstraint
.getVersionComparison(splitD[3]);
versionRConstraint.setRangeConstraint(splitD[2], comp1,
splitD[4], comp2);
incompatible.add(new Dependency(this, versionRConstraint));
}
/*
* int comparisonResult =
* VersionPackageConstraint.compare(versionI, splitD[2]); if
* (!versionOK(splitD[1], comparisonResult)) {
* incompatible.add(p); }
*/
}
}
}
}
}
return incompatible;
}
/**
* Gets a list of installed packages that this package depends on that are
* currently incompatible with this package.
*
* @return a list of incompatible installed packages that this package depends
* on.
*/
@Override
public List getIncompatibleDependencies() throws Exception {
List installedP = m_packageManager.getInstalledPackages();
String dependencies = getPackageMetaDataElement("Depends").toString();
return getIncompatibleDependencies(installedP);
/*
* if (dependencies != null) { StringTokenizer tok = new
* StringTokenizer(dependencies, ","); while (tok.hasMoreTokens()) { String
* nextT = tok.nextToken().trim(); String[] splitD =
* splitNameVersion(nextT);
*
* // check only if a version number was supplied in the dependency list. if
* (splitD[1] != null && splitD[2] != null) { for (Package p : installedP) {
* String packageNameI =
* p.getPackageMetaDataElement("PackageName").toString(); if
* (packageNameI.trim().equalsIgnoreCase(splitD[0].trim())) { // now check
* version against installed String versionI =
* p.getPackageMetaDataElement("Version").toString().trim(); // String[]
* splitI = splitNameVersion(versionI);
*
* VersionPackageConstraint.VersionComparison constraint =
* VersionPackageConstraint.getVersionComparison(splitD[1]); if
* (!VersionPackageConstraint.checkConstraint(versionI, constraint,
* splitD[2])) { VersionPackageConstraint vpc = new
* VersionPackageConstraint(p); vpc.setVersionConstraint(constraint);
* incompatible.add(new Dependency(this, vpc)); } } } } } }
*
* return incompatible;
*/
}
/*
* public Object getPackageDependencyVersion(String dependsOnName) { String
* dependencies = getPackageMetaDataElement("Depends").toString(); Object
* result = null;
*
* if (dependencies != null) { StringTokenizer tok = new
* StringTokenizer(dependencies, ","); while (tok.hasMoreTokens()) { String
* nextT = tok.nextToken().trim(); String[] splitD = splitNameVersion(nextT);
* if (dependsOnName.trim().equalsIgnoreCase(splitD[0]) && splitD[2] != null)
* { result = splitD[2]; break; } } }
*
* return result; }
*/
/**
* Returns true if this package is compatible with the currently installed
* version of the base system.
*
* @return true if this package is compatible with the main software system.
* @throws Exception if a problem occurs while checking compatibility.
*/
@Override
public boolean isCompatibleBaseSystem() throws Exception {
String baseSystemName = m_packageManager.getBaseSystemName();
String systemVersion = m_packageManager.getBaseSystemVersion().toString();
// System.err.println("Base system version " + systemVersion);
String dependencies = getPackageMetaDataElement("Depends").toString();
if (dependencies == null) {
return true;
}
boolean ok = true;
StringTokenizer tok = new StringTokenizer(dependencies, ",");
while (tok.hasMoreTokens()) {
String nextT = tok.nextToken().trim();
String[] split = splitNameVersion(nextT);
if (split[0].startsWith(baseSystemName.toLowerCase())) {
// check the system version
if (split[1] != null) {
if (split.length == 3) {
VersionPackageConstraint.VersionComparison constraint = VersionPackageConstraint
.getVersionComparison(split[1]);
if (!VersionPackageConstraint.checkConstraint(systemVersion,
constraint, split[2])) {
ok = false;
break;
}
} else {
// construct a "dummy" package for the base system
Map baseMap = new HashMap();
baseMap.put("PackageName", "weka");
baseMap.put("Version", systemVersion);
Package basePackage = new DefaultPackage(null, m_packageManager,
baseMap);
VersionRangePackageConstraint versionRConstraint = new VersionRangePackageConstraint(
basePackage);
VersionPackageConstraint.VersionComparison comp1 = VersionPackageConstraint
.getVersionComparison(split[1]);
VersionPackageConstraint.VersionComparison comp2 = VersionPackageConstraint
.getVersionComparison(split[3]);
versionRConstraint.setRangeConstraint(split[2], comp1, split[4],
comp2);
if (!versionRConstraint.checkConstraint(basePackage)) {
ok = false;
break;
}
}
/*
* int comparisonResult =
* VersionPackageConstraint.compare(systemVersion, split[2]); ok =
* versionOK(split[1], comparisonResult); if (!ok) { break; }
*/
}
}
}
return ok;
}
/**
* Returns true if this package is good to go with the current version of the
* software and versions of any installed packages that it depends on.
*
* @return true if this package is good to go.
* @throws Exception if a problem occurs while checking compatibility.
*/
/*
* public boolean isCompatible() throws Exception { // TODO rewrite this to
* make use of getIncompatibleDependencies() // and getMissingDependencies()
* (IF this package is installed)
*
* // MIGHT just rename this method to isCompatibleWithBaseSystem
*
* boolean ok = isCompatibleBaseSystem();
*
* if (ok) { // check for any incompatible dependencies List
* incompatible = getIncompatibleDependencies(); if (incompatible.size() > 0)
* { ok = false; } }
*
* if (ok && isInstalled()) { // first check to see if the installed version
* is the same as us Package installedVersion =
* m_packageManager.getInstalledPackageInfo
* (getPackageMetaDataElement("PackageName").toString()); String
* installedVersionS =
* installedVersion.getPackageMetaDataElement("Version").toString(); String
* thisVersionS = getPackageMetaDataElement("Version").toString();
*
* if (VersionPackageConstraint.compare(thisVersionS, installedVersionS) ==
* VersionPackageConstraint.VersionComparison.EQUAL) { // if equal to the
* installed version then check to see if any dependencies are // missing. If
* not equal to the installed version then just assume that we // we be
* overwriting the installed version and any missing dependencies will // be
* downloaded during the install. List missing =
* getMissingDependencies(); if (missing.size() > 0) { ok = false; } } }
*
* return ok; }
*/
/**
* Install this package.
*
* @throws Exception if something goes wrong during installation.
*/
@Override
public void install() throws Exception {
URL packageURL = getPackageURL();
m_packageManager.installPackageFromURL(packageURL);
}
/**
* Returns true if this package is already installed
*
* @return true if this package is installed
*/
@Override
public boolean isInstalled() {
File packageDir = new File(m_packageHome.getAbsoluteFile() + File.separator
+ m_packageMetaData.get("PackageName") + File.separator
+ "Description.props");
return (packageDir.exists());
}
public static void main(String[] args) {
String installed = args[0];
String toCheckAgainst = args[1];
String[] splitI = splitNameVersion(installed);
String[] splitA = splitNameVersion(toCheckAgainst);
try {
if (splitA.length == 3) {
System.out
.println("Checking first version number against second constraint");
VersionPackageConstraint.VersionComparison constraint = VersionPackageConstraint
.getVersionComparison(splitA[1]);
if (VersionPackageConstraint.checkConstraint(splitI[2], constraint,
splitA[2])) {
System.out.println(splitI[2] + " is compatible with " + args[1]);
} else {
System.out.println(splitI[2] + " is not compatible with " + args[1]);
}
Map baseMap = new HashMap();
baseMap.put("PackageName", splitA[0]);
baseMap.put("Version", splitA[2]);
Package packageA = new DefaultPackage(null, null, baseMap);
packageA.setPackageMetaData(baseMap);
VersionPackageConstraint constrA = new VersionPackageConstraint(
packageA);
constrA.setVersionConstraint(constraint);
if (splitI.length == 3) {
VersionPackageConstraint.VersionComparison constraintI = VersionPackageConstraint
.getVersionComparison(splitI[1]);
Package packageI = (Package) packageA.clone();
packageI.setPackageMetaDataElement(
VersionPackageConstraint.VERSION_KEY, splitI[2]);
VersionPackageConstraint constrI = new VersionPackageConstraint(
packageI);
constrI.setVersionConstraint(constraintI);
PackageConstraint pc = null;
if ((pc = constrI.checkConstraint(constrA)) != null) {
System.out.println(constrI + " and " + constrA
+ " are compatible\n\n" + "compatible constraint " + pc);
} else {
System.out.println(constrI + " and " + constrA
+ " are not compatible");
}
} else {
// TODO
}
} else {
System.out
.println("Checking first version number against second constraint");
Map baseMap = new HashMap();
baseMap.put("PackageName", splitI[0]);
baseMap.put("Version", splitI[2]);
Package p = new DefaultPackage(null, null, baseMap);
VersionRangePackageConstraint c = new VersionRangePackageConstraint(p);
VersionPackageConstraint.VersionComparison comp1 = VersionPackageConstraint
.getVersionComparison(splitA[1]);
VersionPackageConstraint.VersionComparison comp2 = VersionPackageConstraint
.getVersionComparison(splitA[3]);
c.setRangeConstraint(splitA[2], comp1, splitA[4], comp2);
if (c.checkConstraint(p)) {
System.out.println(splitI[2] + " is compatible with " + args[1]);
} else {
System.out.println(splitI[2] + " is not compatible with " + args[1]);
}
}
} catch (Exception ex) {
ex.printStackTrace();
}
/*
* int compResult = VersionPackageConstraint.compare(splitI[2], splitA[2]);
* if (versionOK(splitA[1], compResult)) { System.out.println("Compatible");
* } else { System.out.println("Not ok"); }
*/
}
/**
* Adds a key, value pair to the meta data map.
*
* @param key the key
* @param value the value to add
* @throws Exception if there is no meta data map to add to.
*/
@Override
public void setPackageMetaDataElement(Object key, Object value)
throws Exception {
if (m_packageMetaData == null) {
throw new Exception("[DefaultPackage] no meta data map has been set!");
}
// cast to Object is fine because our maps are Properties.
Map meta = (Map) m_packageMetaData;
meta.put(key, value);
}
@Override
public String toString() {
String packageName = getPackageMetaDataElement("PackageName").toString();
String version = getPackageMetaDataElement("Version").toString();
return packageName + " (" + version + ")";
}
}
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