/**
* Helper method to generate the signatures for binding the factory. Must account for the
* inheritance relationships for any arguments that are classes. Ths, each argument can
* potentially result in a range of values for type, and we have to handle the cross product of
* all of these.
*/
private static Vector makeFactoryNames(IXMLElement constructor) {
String factoryName = XMLUtil.nameOf(constructor.getParent());
Vector allPermutations = new Vector();
for (Enumeration e = constructor.enumerateChildren(); e.hasMoreElements(); ) {
IXMLElement element = (IXMLElement) e.nextElement();
if (!element.getName().equals("arg")) {
break;
}
String argType = XMLUtil.typeOf(element);
Vector argTypeAlternates = new Vector();
argTypeAlternates.add(argType);
if (ModelAccessor.isClass(argType)) {
List ancestors = ModelAccessor.getAncestors(argType);
if (ancestors != null) argTypeAlternates.addAll(ancestors);
}
allPermutations.add(argTypeAlternates);
}
// Generate all the signatures
Vector factoryNames = new Vector();
makeFactoryNames(factoryName, allPermutations, 0, factoryNames);
return factoryNames;
}
/** INTERNAL: Return all the fields */
public Vector getFields() {
if (isAttribute()) {
Vector result = new Vector(1);
DatabaseField field = getField();
if (field != null) {
result.addElement(field);
}
return result;
} else {
Vector result = new Vector();
result.addAll(super.getFields());
if (mapping.isCollectionMapping()) {
List<DatabaseField> fields =
mapping.getContainerPolicy().getAllFieldsForMapKey((CollectionMapping) mapping);
if (fields != null) {
result.addAll(fields);
}
}
return result;
}
}
public static void main(String[] args) throws Exception {
int V, E, s, a, b, w;
File f = new File("in_06.txt");
Scanner sc = new Scanner(f);
V = sc.nextInt();
E = sc.nextInt();
s = sc.nextInt();
AdjList.clear();
for (int i = 0; i < V; i++) {
Vector<IntegerPair> Neighbor = new Vector<IntegerPair>();
AdjList.add(Neighbor); // add neighbor list to Adjacency List
}
for (int i = 0; i < E; i++) {
a = sc.nextInt();
b = sc.nextInt();
w = sc.nextInt();
AdjList.get(a).add(new IntegerPair(b, w)); // first time using weight
}
// as an example, we start from this source (see Figure 1.15)
Vector<Integer> dist = new Vector<Integer>();
dist.addAll(Collections.nCopies(V, INF));
dist.set(s, 0);
// Bellman Ford routine
for (int i = 0; i < V - 1; i++) // relax all E edges V-1 times, O(V)
for (int u = 0; u < V; u++) { // these two loops = O(E)
Iterator it = AdjList.get(u).iterator();
while (it.hasNext()) { // relax these edges
IntegerPair v = (IntegerPair) it.next();
dist.set(v.first(), Math.min(dist.get(v.first()), dist.get(u) + v.second()));
}
}
boolean negative_cycle_exist = false;
for (int u = 0; u < V; u++) { // one more pass to check
Iterator it = AdjList.get(u).iterator();
while (it.hasNext()) { // relax these edges
IntegerPair v = (IntegerPair) it.next();
if (dist.get(v.first()) > dist.get(u) + v.second()) // should be false, but if possible
negative_cycle_exist = true; // then negative cycle exists!
}
}
System.out.printf("Negative Cycle Exist? %s\n", negative_cycle_exist ? "Yes" : "No");
if (!negative_cycle_exist)
for (int i = 0; i < V; i++) System.out.printf("SSSP(%d, %d) = %d\n", s, i, dist.get(i));
}
/**
* get region
*
* @param lockRegionData the intial lock-region-data Node
* @return region
*/
public RegionInfo getLockRegion(LockRegionData lockRegionData) {
JavaRegion javaRegion = lockRegionData.getJavaRegion();
int regionBegin = javaRegion.getBeginOffset().intValue();
int length = javaRegion.getLength().intValue();
int regionEnd = regionBegin + length;
CollabLineRegion[] cLineRegionList = getCollabLineRegion(lockRegionData);
Vector cLineRegions = new Vector();
cLineRegions.addAll(Arrays.asList(cLineRegionList));
RegionInfo regionInfo =
new RegionInfo(
javaRegion.getRegionName(),
getName(),
getFileGroupName(),
RegionInfo.CHAROFFSET_RANGE,
regionBegin,
regionEnd,
0,
cLineRegions);
return regionInfo;
}
public static void main(String[] args) throws Exception {
/*
// Graph in Figure 4.3, format: list of unweighted edges
// This example shows another form of reading graph input
13 16
0 1 1 2 2 3 0 4 1 5 2 6 3 7 5 6
4 8 8 9 5 10 6 11 7 12 9 10 10 11 11 12
*/
File f = new File("in_04.txt");
Scanner sc = new Scanner(f);
V = sc.nextInt();
E = sc.nextInt();
AdjList.clear();
for (int i = 0; i < V; i++) {
Vector<IntegerPair> Neighbor = new Vector<IntegerPair>();
AdjList.add(Neighbor); // add neighbor list to Adjacency List
}
for (int i = 0; i < E; i++) {
a = sc.nextInt();
b = sc.nextInt();
AdjList.get(a).add(new IntegerPair(b, 0));
AdjList.get(b).add(new IntegerPair(a, 0));
}
// as an example, we start from this source, see Figure 4.3
s = 5;
// BFS routine
// inside void main(String[] args) -- we do not use recursion, thus we do not need to create
// separate function!
Vector<Integer> dist = new Vector<Integer>();
dist.addAll(Collections.nCopies(V, 1000000000));
dist.set(s, 0); // start from source
Queue<Integer> q = new LinkedList<Integer>();
q.offer(s);
p.clear();
p.addAll(
Collections.nCopies(V, -1)); // to store parent information (p must be a global variable!)
int layer = -1; // for our output printing purpose
Boolean isBipartite = true;
while (!q.isEmpty()) {
int u = q.poll(); // queue: layer by layer!
if (dist.get(u) != layer) System.out.printf("\nLayer %d:", dist.get(u));
layer = dist.get(u);
System.out.printf(", visit %d", u);
Iterator it = AdjList.get(u).iterator();
while (it.hasNext()) { // for each neighbours of u
IntegerPair v = (IntegerPair) it.next();
if (dist.get(v.first()) == 1000000000) { // if v not visited before
dist.set(v.first(), dist.get(u) + 1); // then v is reachable from u
q.offer(v.first()); // enqueue v for next steps
p.set(v.first(), u); // parent of v is u
} else if ((dist.get(v.first()) % 2) == (dist.get(u) % 2)) // same parity
isBipartite = false;
}
}
System.out.printf("\nShortest path: ");
printpath(7);
System.out.printf("\n");
System.out.printf("isBipartite? %d\n", isBipartite ? 1 : 0);
}
/**
* Create the array of arguments to pass to rhino engine. It looks something like this: -modules
* <jsdoc.home>/node_modules -modules <jsdoc.home>/rhino_modules \ -modules <jsdoc.home>
* <jsdoc.home>/jsdoc.js --dirname=<jsdoc.home> \ <options> <sourcefiles|sourcedirs>
*
* @return a string[] of commands to pass to the rhino engine
*/
private String[] createArguments() throws BuildException {
Vector<String> arguments = new Vector<String>();
// return if certain attributes are not present
if ((jsDocHome == null)) {
throw new BuildException("jsdochome must be specified");
}
// add the modules folders
arguments.add("-modules");
arguments.add(jsDocHome + "/node_modules");
arguments.add("-modules");
if (new File(jsDocHome + "/rhino").exists()) {
arguments.add(jsDocHome + "/rhino");
} else {
arguments.add(jsDocHome + "/rhino_modules");
}
arguments.add("-modules");
arguments.add(jsDocHome + "/lib");
arguments.add("-modules");
arguments.add(jsDocHome);
// add the main jsodc js
arguments.add(jsDocHome + "/jsdoc.js");
// add the dirname
arguments.add("--dirname=" + jsDocHome);
addOptionalArgument(arguments, template, "-t"); // add the template
addOptionalArgument(arguments, toDir, "-d"); // add the output dir
addOptionalArgument(arguments, encoding, "-e"); // the encoding to use
addOptionalArgument(arguments, config, "-c"); // the config file to use
addOptionalArgument(arguments, tutorials, "-u"); // the tutorials dir
addOptionalBooleanArgument(arguments, isIncludingPrivate, "-p");
addOptionalBooleanArgument(arguments, isRecursive, "-r");
if (inputFile != null) {
arguments.add(inputFile);
} else if (inputDir != null) {
arguments.add(inputDir);
} else if (fileSets.size() != 0 || fileLists.size() != 0) {
// Loop through fileSets
for (int i = 0, l = fileSets.size(); i < l; i++) {
FileSet fs = fileSets.elementAt(i);
// Ummm....?
DirectoryScanner ds = fs.getDirectoryScanner(getProject());
// Get base directory from fileset
File dir = ds.getBasedir();
// Get included files from fileset
String[] srcs = ds.getIncludedFiles();
// Loop through files
for (int j = 0; j < srcs.length; j++) {
// Make file object from base directory and filename
File temp = new File(dir, srcs[j]);
// Call the JSMin class with this file
arguments.add(temp.getAbsolutePath());
}
}
// Loop through fileLists
for (int i = 0; i < fileLists.size(); i++) {
FileList fs = fileLists.elementAt(i);
// Get included files from filelist
String[] srcs = fs.getFiles(getProject());
// Get base directory from filelist
File dir = fs.getDir(getProject());
// Loop through files
for (int j = 0; j < srcs.length; j++) {
// Make file object from base directory and filename
File temp = new File(dir, srcs[j]);
// Call the JSMin class with this file
arguments.add(temp.getAbsolutePath());
}
}
} else {
throw new BuildException(
"No inputs specified. Task requires 'file' attribute OR 'dir' attribute OR nested filesets");
}
if (args.size() != 0) {
for (int i = 0, l = args.size(); i < l; i++) {
arguments.addAll(Arrays.asList(args.elementAt(i).getParts()));
}
}
return arguments.toArray(new String[0]);
}
