List of usage examples for java.util LinkedList isEmpty
boolean isEmpty();
From source file:org.kitodo.production.forms.dataeditor.StructurePanel.java
private void checkLogicalDragDrop(IncludedStructuralElement dragStructure, IncludedStructuralElement dropStructure) { StructuralElementViewInterface divisionView = dataEditor.getRuleset().getStructuralElementView( dropStructure.getType(), dataEditor.getAcquisitionStage(), dataEditor.getPriorityList()); LinkedList<IncludedStructuralElement> dragParents; if (divisionView.getAllowedSubstructuralElements().containsKey(dragStructure.getType())) { dragParents = MetadataEditor.getAncestorsOfStructure(dragStructure, dataEditor.getWorkpiece().getRootElement()); if (!dragParents.isEmpty()) { IncludedStructuralElement parentStructure = dragParents.get(dragParents.size() - 1); if (parentStructure.getChildren().contains(dragStructure)) { preserveLogical();/* ww w .j a v a 2 s . c o m*/ return; } else { Helper.setErrorMessage( "Parents of structure " + dragStructure.getType() + " do not contain structure!"); } } else { Helper.setErrorMessage("No parents of structure " + dragStructure.getType() + " found!"); } } else { Helper.setErrorMessage("Structure of type '" + dragStructure.getType() + "' NOT allowed as child of structure of type '" + dropStructure.getType() + "'! "); } show(); }
From source file:org.xchain.namespaces.jsl.AbstractTemplateCommand.java
/** * Pops the current command execution state array from the stack. *//*from ww w. j a va 2s .c o m*/ private final void popCommandExecutionState() { // get the stack for the current thread. LinkedList<CommandExecutionState[]> stack = commandExecutionStateStackTL.get(); // if there was not a stack, then we are in an illegal state. if (stack == null) { throw new IllegalStateException( "popCommandExecutionState() called when there was not a current stack."); } // remove the state array from the stack. stack.removeFirst(); // if the stack is now empty, clean the thread local up. if (stack.isEmpty()) { commandExecutionStateStackTL.remove(); } }
From source file:org.eclipse.che.vfs.impl.fs.LocalFileSystemTest.java
protected List<String> flattenDirectory(String vfsPath) { java.io.File directory = getIoFile(vfsPath); assertTrue("Not a directory ", directory.isDirectory()); final int splitIndex = directory.getAbsolutePath().length() + 1; List<String> files = new ArrayList<>(); LinkedList<java.io.File> q = new LinkedList<>(); q.add(directory);/*w ww .j a v a 2 s .c om*/ while (!q.isEmpty()) { java.io.File current = q.pop(); java.io.File[] list = current.listFiles(SERVICE_DIR_FILTER); if (list != null) { for (java.io.File f : list) { files.add(f.getAbsolutePath().substring(splitIndex)); if (f.isDirectory()) { q.push(f); } } } } if (!files.isEmpty()) { java.util.Collections.sort(files); } return files; }
From source file:org.gephi.statistics.plugin.ConnectedComponents.java
public void weaklyConnected(HierarchicalUndirectedGraph hgraph, AttributeModel attributeModel) { isCanceled = false;//from ww w . j a v a2s . com componentCount = 0; AttributeTable nodeTable = attributeModel.getNodeTable(); AttributeColumn componentCol = nodeTable.getColumn(WEAKLY); if (componentCol == null) { componentCol = nodeTable.addColumn(WEAKLY, "Component ID", AttributeType.INT, AttributeOrigin.COMPUTED, new Integer(0)); } List<Integer> sizeList = new ArrayList<Integer>(); hgraph.readLock(); HashMap<Node, Integer> indicies = new HashMap<Node, Integer>(); int index = 0; for (Node s : hgraph.getNodes()) { indicies.put(s, index); index++; } int N = hgraph.getNodeCount(); //Keep track of which nodes have been seen int[] color = new int[N]; Progress.start(progress, hgraph.getNodeCount()); int seenCount = 0; while (seenCount < N) { //The search Q LinkedList<Node> Q = new LinkedList<Node>(); //The component-list LinkedList<Node> component = new LinkedList<Node>(); //Seed the seach Q NodeIterable iter = hgraph.getNodes(); for (Node first : iter) { if (color[indicies.get(first)] == 0) { Q.add(first); iter.doBreak(); break; } } //While there are more nodes to search while (!Q.isEmpty()) { if (isCanceled) { hgraph.readUnlock(); return; } //Get the next Node and add it to the component list Node u = Q.removeFirst(); component.add(u); //Iterate over all of u's neighbors EdgeIterable edgeIter = hgraph.getEdgesAndMetaEdges(u); //For each neighbor for (Edge edge : edgeIter) { Node reachable = hgraph.getOpposite(u, edge); int id = indicies.get(reachable); //If this neighbor is unvisited if (color[id] == 0) { color[id] = 1; //Add it to the search Q Q.addLast(reachable); //Mark it as used Progress.progress(progress, seenCount); } } color[indicies.get(u)] = 2; seenCount++; } for (Node s : component) { AttributeRow row = (AttributeRow) s.getNodeData().getAttributes(); row.setValue(componentCol, componentCount); } sizeList.add(component.size()); componentCount++; } hgraph.readUnlock(); componentsSize = new int[sizeList.size()]; for (int i = 0; i < sizeList.size(); i++) { componentsSize[i] = sizeList.get(i); } }
From source file:com.epam.reportportal.apache.http.conn.ssl.AbstractVerifier.java
public static String[] getCNs(final X509Certificate cert) { final LinkedList<String> cnList = new LinkedList<String>(); /*//from w w w . ja v a2 s.co m Sebastian Hauer's original StrictSSLProtocolSocketFactory used getName() and had the following comment: Parses a X.500 distinguished name for the value of the "Common Name" field. This is done a bit sloppy right now and should probably be done a bit more according to <code>RFC 2253</code>. I've noticed that toString() seems to do a better job than getName() on these X500Principal objects, so I'm hoping that addresses Sebastian's concern. For example, getName() gives me this: 1.2.840.113549.1.9.1=#16166a756c6975736461766965734063756362632e636f6d whereas toString() gives me this: EMAILADDRESS=juliusdavies@cucbc.com Looks like toString() even works with non-ascii domain names! I tested it with "花子.co.jp" and it worked fine. */ final String subjectPrincipal = cert.getSubjectX500Principal().toString(); final StringTokenizer st = new StringTokenizer(subjectPrincipal, ",+"); while (st.hasMoreTokens()) { final String tok = st.nextToken().trim(); if (tok.length() > 3) { if (tok.substring(0, 3).equalsIgnoreCase("CN=")) { cnList.add(tok.substring(3)); } } } if (!cnList.isEmpty()) { final String[] cns = new String[cnList.size()]; cnList.toArray(cns); return cns; } else { return null; } }
From source file:org.cloudata.core.common.ipc.CClient.java
/** * Get a connection from the pool, or create a new one and add it to the pool. * Connections to a given host/port are reused. *///from w ww . j a v a 2s . co m private Connection getConnection(InetSocketAddress address) throws IOException { Connection connection; synchronized (connections) { LinkedList<Connection> hostConnections = connections.get(address); if (hostConnections == null) { hostConnections = new LinkedList<Connection>(); connections.put(address, hostConnections); } if (hostConnections.isEmpty()) { connection = new Connection(address); } else { connection = hostConnections.removeFirst(); } connection.touch(); } // we don't invoke the method below inside "synchronized (connections)" // block above. The reason for that is if the server happens to be slow, // it will take longer to establish a connection and that will slow the // entire system down. connection.setupIOstreams(); return connection; }
From source file:org.geometerplus.android.fbreader.QuotesFragmentActivity.java
@Override protected void onNewIntent(Intent intent) { OrientationUtil.setOrientation(this, intent); if (!Intent.ACTION_SEARCH.equals(intent.getAction())) { return;//from ww w .j ava2s . c om } String pattern = intent.getStringExtra(SearchManager.QUERY); myQuoteSearchPatternOption.setValue(pattern); final LinkedList<Quote> quotes = new LinkedList<Quote>(); pattern = pattern.toLowerCase(); for (Quote b : myAllBooksAdapter.quotes()) { if (MiscUtil.matchesIgnoreCase(b.getText(), pattern)) { quotes.add(b); } } if (!quotes.isEmpty()) { showSearchResultsTab(quotes); } else { UIUtil.showErrorMessage(this, "quoteNotFound"); } }
From source file:org.fusesource.mop.MOP.java
protected void helpCommand(LinkedList<String> argList) { if (argList.isEmpty()) { displayHelp();//www . j a va 2s. c o m return; } for (String commandName : argList) { checkCommandsLoaded(); CommandDefinition command = commands.get(commandName); if (command == null) { p("No such command '" + command + "'"); } else { p(); p("mop command: " + command.getName()); p(); p("usage:"); p("\t mop [options] " + command.getName() + " " + command.getUsage()); p(); p(command.getDescription()); p(); } } }
From source file:org.fusesource.mop.MOP.java
private void assertNotEmpty(LinkedList<String> args) throws UsageException { if (args.isEmpty()) { throw new UsageException("Empty argument list"); }/*from www .ja va 2 s . co m*/ }
From source file:org.eclipse.che.vfs.impl.fs.LocalFileSystemTest.java
protected void compareDirectories(java.io.File a, java.io.File b, boolean checkServiceDirs) throws IOException { if (!a.isDirectory() || !b.isDirectory()) { fail();/* ww w .j a va2 s. c o m*/ } LinkedList<Pair<java.io.File, java.io.File>> q = new LinkedList<>(); q.add(new Pair<>(a, b)); while (!q.isEmpty()) { Pair<java.io.File, java.io.File> current = q.pop(); java.io.File[] files1 = current.first.listFiles(checkServiceDirs ? null : SERVICE_DIR_FILTER); java.io.File[] files2 = current.second.listFiles(checkServiceDirs ? null : SERVICE_DIR_FILTER); if (files1 == null || files2 == null || files1.length != files2.length) { fail(); } Arrays.sort(files1); Arrays.sort(files2); for (int i = 0; i < files1.length; i++) { java.io.File file1 = files1[i]; java.io.File file2 = files2[i]; if (!file1.getName().equals(file2.getName())) { fail(); } if (file1.isFile()) { try (FileInputStream in1 = new FileInputStream(file1); FileInputStream in2 = new FileInputStream(file2)) { compareStreams(in1, in2); } } else { q.push(new Pair<>(file1, file2)); } } } }