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package org.netbeans.modules.scala.stdplatform.libraries;
import java.net.URL;
import java.util.List;
import org.netbeans.api.java.classpath.ClassPath;
import org.netbeans.api.project.libraries.Library;
import org.netbeans.api.project.libraries.LibraryManager;
import org.netbeans.api.scala.platform.ScalaPlatformManager;
import org.netbeans.spi.java.classpath.ClassPathProvider;
import org.netbeans.spi.java.classpath.support.ClassPathSupport;
import org.openide.filesystems.FileObject;
import org.openide.filesystems.FileUtil;
@org.openide.util.lookup.ServiceProvider(service=org.netbeans.spi.java.classpath.ClassPathProvider.class, position=156)
public class J2SELibraryClassPathProvider implements ClassPathProvider {
public ClassPath findClassPath(FileObject file, String type) {
assert file != null;
Library ll = this.getLastUsedLibrary(file);
if (ll != null) {
ClassPath[] cp = findClassPathOrNull(file, type, ll);
return cp != null ? cp[0] : null;
}
else {
for (LibraryManager mgr : LibraryManager.getOpenManagers()) {
for (Library lib : mgr.getLibraries()) {
ClassPath[] cp = findClassPathOrNull(file, type, lib);
if (cp != null) {
return cp[0];
}
}
}
return null;
}
}
private ClassPath[] findClassPathOrNull(FileObject file, String type, Library lib) {
if (lib.getType().equals(J2SELibraryTypeProvider.LIBRARY_TYPE)) {
List<URL> resources = lib.getContent(J2SELibraryTypeProvider.VOLUME_TYPE_SRC);
ClassPath sourcePath = ClassPathSupport.createClassPath(resources.toArray(new URL[resources.size()]));
FileObject root = sourcePath.findOwnerRoot(file);
if (root != null) {
setLastUsedLibrary(root, lib);
if (ClassPath.SOURCE.equals(type)) {
return new ClassPath[] {sourcePath};
} else if (ClassPath.COMPILE.equals(type)) {
resources = lib.getContent(J2SELibraryTypeProvider.VOLUME_TYPE_CLASSPATH);
return new ClassPath[] {ClassPathSupport.createClassPath(resources.toArray(new URL[resources.size()]))};
} else if (ClassPath.BOOT.equals(type)) {
return new ClassPath[] {ScalaPlatformManager.getDefault().getDefaultPlatform().getBootstrapLibraries()};
} else {
return new ClassPath[] {null};
}
}
}
return null;
}
private synchronized Library getLastUsedLibrary (FileObject fo) {
if (this.lastUsedRoot != null && FileUtil.isParentOf(this.lastUsedRoot,fo)) {
return this.lastUsedLibrary;
}
else {
return null;
}
}
private synchronized void setLastUsedLibrary (FileObject root, Library lib) {
this.lastUsedRoot = root;
this.lastUsedLibrary = lib;
}
private FileObject lastUsedRoot;
private Library lastUsedLibrary;
}