package org.eclipse.dltk.launching;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import java.util.Set;
import org.eclipse.core.runtime.IPath;
import org.eclipse.core.runtime.NullProgressMonitor;
import org.eclipse.core.runtime.Path;
import org.eclipse.dltk.core.DLTKCore;
import org.eclipse.dltk.core.IBuildpathAttribute;
import org.eclipse.dltk.core.IBuildpathEntry;
import org.eclipse.dltk.core.IScriptProject;
import org.eclipse.dltk.core.ModelException;
import org.eclipse.dltk.internal.core.BuildpathEntry;
import org.eclipse.dltk.utils.TextUtils;
public class InterpreterContainerHelper {
private static final char SEPARATOR = '|';
private static final String PACKAGES_ATTR = "user_dependencies"; //$NON-NLS-1$
private static final String PACKAGES_AUTO_ATTR = "auto_dependencies"; //$NON-NLS-1$
public static final String CONTAINER_PATH = ScriptRuntime.INTERPRETER_CONTAINER;
public static void getInterpreterContainerDependencies(
IScriptProject project, Set<String> packages,
Set<String> autoPackages) {
IBuildpathEntry[] rawBuildpath = null;
try {
rawBuildpath = project.getRawBuildpath();
} catch (ModelException e1) {
if (DLTKCore.DEBUG) {
e1.printStackTrace();
}
}
if (rawBuildpath == null) {
return;
}
IBuildpathEntry containerEntry = null;
for (int i = 0; i < rawBuildpath.length; i++) {
if (rawBuildpath[i].getPath().segment(0).equals(CONTAINER_PATH)) {
containerEntry = rawBuildpath[i];
}
}
if (containerEntry == null) {
return;
}
IBuildpathAttribute[] extraAttributes = containerEntry
.getExtraAttributes();
for (int i = 0; i < extraAttributes.length; i++) {
if (extraAttributes[i].getName().equals(PACKAGES_ATTR)) {
String value = extraAttributes[i].getValue();
String[] split = split(value);
for (int j = 0; j < split.length; j++) {
packages.add(split[j]);
}
} else if (extraAttributes[i].getName().equals(PACKAGES_AUTO_ATTR)) {
String value = extraAttributes[i].getValue();
String[] split = split(value);
for (int j = 0; j < split.length; j++) {
autoPackages.add(split[j]);
}
}
}
return;
}
private static String[] split(String value) {
return TextUtils.split(value, SEPARATOR);
}
public static void setInterpreterContainerDependencies(
IScriptProject project, Set<String> packages,
Set<String> autoPackages) {
IBuildpathEntry[] rawBuildpath = null;
try {
rawBuildpath = project.getRawBuildpath();
} catch (ModelException e1) {
if (DLTKCore.DEBUG) {
e1.printStackTrace();
}
}
IPath containerName = new Path(CONTAINER_PATH).append(project
.getElementName());
List<IBuildpathEntry> newBuildpath = new ArrayList<IBuildpathEntry>();
boolean found = false;
for (int i = 0; i < rawBuildpath.length; i++) {
if (!rawBuildpath[i].getPath().segment(0).equals(CONTAINER_PATH)) {
newBuildpath.add(rawBuildpath[i]);
} else {
found = true;
newBuildpath.add(createPackagesContainer(packages,
autoPackages, rawBuildpath[i].getPath()));
}
}
if (!found) {
newBuildpath.add(createPackagesContainer(packages, autoPackages,
containerName));
}
IBuildpathEntry[] nbp = newBuildpath
.toArray(new IBuildpathEntry[newBuildpath.size()]);
try {
project.setRawBuildpath(nbp, new NullProgressMonitor());
} catch (ModelException e) {
if (DLTKCore.DEBUG) {
e.printStackTrace();
}
}
}
public static IBuildpathEntry createPackagesContainer(Set<String> names,
Set<String> autoPackages, IPath containerName) {
final List<IBuildpathAttribute> attributes = new ArrayList<IBuildpathAttribute>(
2);
if (names != null && !names.isEmpty()) {
attributes.add(DLTKCore.newBuildpathAttribute(PACKAGES_ATTR,
pkgsToString(names)));
}
if (autoPackages != null && !autoPackages.isEmpty()) {
attributes.add(DLTKCore.newBuildpathAttribute(PACKAGES_AUTO_ATTR,
pkgsToString(autoPackages)));
}
return DLTKCore.newContainerEntry(containerName,
BuildpathEntry.NO_ACCESS_RULES,
attributes.toArray(new IBuildpathAttribute[attributes.size()]),
false/* not exported */);
}
private static String pkgsToString(Set<String> names) {
final List<String> sorted = new ArrayList<String>(names);
Collections.sort(sorted);
return TextUtils.join(sorted, SEPARATOR);
}
}