Example usage for java.util Collections reverse

Introduction

In this page you can find the example usage for java.util Collections reverse.

Prototype

@SuppressWarnings({ "rawtypes", "unchecked" })
public static void reverse(List<?> list) 

Source Link

Document

Reverses the order of the elements in the specified list.

This method runs in linear time.

Usage

From source file:com.bitsofproof.supernode.model.JpaStore.java

@Override
protected void backwardCache(Blk b, TxOutCache cache, boolean modify) {
    List<Tx> txs = new ArrayList<Tx>();
    txs.addAll(b.getTransactions());/*from   w w w .j a va2s  . co  m*/
    Collections.reverse(txs);
    for (Tx t : txs) {
        for (TxOut out : t.getOutputs()) {
            if (modify) {
                out.setAvailable(false);
            }
            cache.remove(t.getHash(), out.getIx());
        }

        for (TxIn in : t.getInputs()) {
            if (!in.getSourceHash().equals(Hash.ZERO_HASH_STRING)) {
                TxOut source = in.getSource();
                if (modify) {
                    source.setAvailable(true);
                }
                cache.add(source.flatCopy(null));
            }
        }
    }
}

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From source file:com.norconex.commons.lang.io.IOUtil.java

/**
 * Gets the last lines from an input stream, using the specified encoding.  
 * This method is null-safe.//ww  w .ja v  a  2 s.  c o m
 * If the input stream is null or empty, an empty string array will
 * be returned.  
 * <br><br>
 * Use of this method can often be a bad idea (especially on large streams)
 * since it needs to read the entire stream to return the last lines. 
 * If you are dealing with files, use 
 * {@link com.norconex.commons.lang.file.FileUtil#tail(
 * File, String, int)} instead, which can read
 * a file starting from the end. 
 * @param is input stream
 * @param encoding character encoding
 * @param lineQty maximum number of lines to return
 * @return lines as a string array
 * @throws IOException problem reading lines
 * @since 1.5.0
 */
public static String[] tail(final InputStream is, String encoding, final int lineQty) throws IOException {
    if (is == null) {
        return EMPTY_STRINGS;
    }
    String safeEncoding = encoding;
    if (StringUtils.isBlank(safeEncoding)) {
        safeEncoding = CharEncoding.UTF_8;
    }
    BufferedReader br = new BufferedReader(new InputStreamReader(is, safeEncoding));
    List<String> lines = new ArrayList<String>(lineQty);
    String line;
    while ((line = br.readLine()) != null) {
        lines.add(0, line);
        if (lines.size() > lineQty) {
            lines.remove(lineQty);
        }
    }
    br.close();
    Collections.reverse(lines);
    return lines.toArray(EMPTY_STRINGS);
}

---

From source file:es.uniovi.imovil.fcrtrainer.highscores.HighscoresFragment.java

private void initializeListView(int selectedExerciseId, Level level) {
    mHighscoreListView = (ListView) mRootView.findViewById(R.id.list_view_highscores);

    if (firstTime()) {
        addBasicHighscores();//from ww  w.ja va2  s .  co m
    }

    ArrayList<Highscore> highscores = loadHighscores(level);

    highscores = selectHighscores(highscores, selectedExerciseId);

    Collections.sort(highscores);
    Collections.reverse(highscores);

    HighscoreAdapter adapter = new HighscoreAdapter(getActivity(), highscores);
    mHighscoreListView.setAdapter(adapter);
}

---

From source file:de.unisb.cs.st.javalanche.rhino.coverage.CoberturaParser.java

private static double[] generateAverageData(FailureMatrix fm, List<List<PriorizationResult>> averageList) {
    double[] values = new double[averageList.get(0).size()];
    for (List<PriorizationResult> singleResult : averageList) {
        Collections.reverse(singleResult);
        List<String> testList = new ArrayList<String>();
        for (int i = 0; i < singleResult.size(); i++) {
            PriorizationResult prioritizationResult = singleResult.get(i);
            testList.add(prioritizationResult.getTestName());
            int detectedFailures = fm.getDetectedFailures(testList);
            // System.out.println("Detected Failures: " + detectedFailures);
            values[i] += 1. * detectedFailures;
        }// ww w.java  2 s .co m
    }
    double size = 1. * averageList.size();
    for (int i = 0; i < values.length; i++) {
        values[i] = values[i] / size;
    }
    return values;
}

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From source file:controller.HostelController.java

@ResponseBody
@RequestMapping(value = "/getPlans.do")
public Map getPlans(@RequestBody Map hostel, HttpServletRequest request, HttpServletResponse response)
        throws Exception {
    String hostelIdStr = (String) hostel.get("hostelId");
    int hostelId = Integer.parseInt(hostelIdStr);
    Map<String, Object> result = new HashMap<String, Object>();
    List<Plan> plans = hostelService.getPlans(hostelId);
    Collections.reverse(plans);
    result.put("plans", plans);
    return result;
}

---

From source file:org.oscarehr.web.OcanReportingAction.java

public ActionForward getAssessments(ActionMapping mapping, ActionForm form, HttpServletRequest request,
        HttpServletResponse response) throws IOException {
    String strClientId = request.getParameter("clientId");
    SimpleDateFormat dateFormatter = new SimpleDateFormat("yyyy-MM-dd");

    Integer facilityId = LoggedInInfo.loggedInInfo.get().currentFacility.getId();
    List<OcanStaffForm> staffForms = ocanStaffFormDao.findLatestSignedOcanForms(facilityId,
            Integer.parseInt(strClientId));
    Collections.reverse(staffForms);

    List<LabelValueBean> results = new ArrayList<LabelValueBean>();

    if (staffForms.size() == 0) {
        MiscUtils.getLogger().info("No OCAN Assessments found for this client: " + strClientId);
        JSONArray jsonArray = JSONArray.fromObject(results);
        response.getWriter().print(jsonArray);
        return null;
    }//www . j  a va2  s . c  o m

    //we know there's atleast 1.
    OcanStaffForm firstOcan = staffForms.get(0);
    String label = convertOcanReasonUserString(firstOcan.getReasonForAssessment());
    results.add(new LabelValueBean(label + " - " + dateFormatter.format(firstOcan.getCreated()),
            String.valueOf(firstOcan.getId())));

    if (staffForms.size() > 1) {
        OcanStaffForm latestOcan = staffForms.get(staffForms.size() - 1);
        results.add(new LabelValueBean("Current OCAN - " + dateFormatter.format(latestOcan.getCreated()),
                String.valueOf(latestOcan.getId())));
    }

    if (staffForms.size() > 2) {
        OcanStaffForm previousOcan = staffForms.get(staffForms.size() - 2);
        results.add(1, new LabelValueBean("Previous OCAN - " + dateFormatter.format(previousOcan.getCreated()),
                String.valueOf(previousOcan.getId())));
    }
    int counter = 1;
    if (staffForms.size() > 3) {
        for (int x = 1; x <= staffForms.size() - 3; x++) {
            OcanStaffForm staffForm = staffForms.get(x);
            label = convertOcanReasonUserString(staffForm.getReasonForAssessment()) + " " + counter + " - "
                    + dateFormatter.format(staffForm.getCreated());
            results.add(counter, new LabelValueBean(label, String.valueOf(staffForm.getId())));
            counter++;
        }
    }

    JSONArray jsonArray = JSONArray.fromObject(results);
    response.getWriter().print(jsonArray);

    return null;
}

---

From source file:com.atlassian.launchpad.jira.gerrittabpanel.GerritTabPanel.java

@Override
public List<IssueAction> getActions(Issue issue, User remoteUser) {
    List<IssueAction> messages = new ArrayList<IssueAction>();
    System.err.println(USER);/*from w  ww  . j av a 2s.c  o m*/
    //read and validate the Gerrit commit hash
    CustomField gerritLinkFieldContent = ComponentAccessor.getCustomFieldManager()
            .getCustomFieldObjectByName(GERRIT_ID_FIELD_NAME);
    if (gerritLinkFieldContent == null) {
        messages.add(new GenericMessageAction("\"" + GERRIT_ID_FIELD_NAME
                + "\" custom field not available. Cannot process Gerrit Review comments"));
        return messages;
    }

    Object gitHashFieldObj = issue.getCustomFieldValue(gerritLinkFieldContent);
    if (gitHashFieldObj == null) {
        messages.add(new GenericMessageAction("\"" + GERRIT_ID_FIELD_NAME
                + "\" not provided. Please provide Gerrit ID to see review comments for this issue."));
        return messages;
    }

    String gitHash = gitHashFieldObj.toString().trim();
    if (gitHash.length() == 0) {
        messages.add(new GenericMessageAction(
                "To view related Gerrit review comments for this issue please provide the Git Commit Hash"));
        return messages;
    }

    else if (!isValidGitHash(gitHash)) {
        messages.add(new GenericMessageAction("Gerrit Commit ID not properly formatted"));
        return messages;
    }

    //frame command to access SSH API
    String sshCom = "ssh -i /home/jira/.ssh/id_rsa -p " + PORT + " " + USER + "@" + HOST
            + " gerrit query --format=json --current-patch-set --comments change:" + gitHash;

    try {
        Process p = Runtime.getRuntime().exec(sshCom);
        p.waitFor();
        BufferedReader reader = new BufferedReader(new InputStreamReader(p.getInputStream()));

        String line = reader.readLine();
        if (line != null) {
            JSONTokener tokener = new JSONTokener(line);
            JSONObject finalResult = new JSONObject(tokener);
            if (!finalResult.has(KEY_COMMENTS)) {
                messages.add(new GenericMessageAction("No comments available for this Gerrit review."));
                return messages;
            }

            JSONArray commentsJson = finalResult.getJSONArray(KEY_COMMENTS);
            for (int k = 0; k < commentsJson.length(); k++) {
                JSONObject commentJson = commentsJson.getJSONObject(k);
                GerritCommentAction commentAction = createCommentActionFromJSON(commentJson);
                messages.add(commentAction);
            }

            String status = finalResult.getString("status");
            messages.add(new GenericMessageAction("<h2>Gerrit Status: " + status + "</h2>"));

            //reverse message order to display most recent first
            Collections.reverse(messages);
        }

    } catch (JSONException e) {
        // JSON returned from SSH API did not contain proper keys
        e.printStackTrace();
    } catch (InterruptedException e) {
        // Exception in attempting to execute the ssh command
        e.printStackTrace();
    } catch (IOException e) {
        // Exception in reading from the input stream
        e.printStackTrace();
    }

    return messages;
}

---

From source file:com.powers.wsexplorer.gui.GUIUtil.java

public static Listener createTextSortListener(final Table table, final Map<String, String> map) {

    Listener sortListener = new Listener() {
        public void handleEvent(Event e) {

            final int direction = table.getSortDirection();

            Collator collator = Collator.getInstance(Locale.getDefault());
            TableColumn column = (TableColumn) e.widget;

            Set<String> keys = map.keySet();
            List<String> l = new LinkedList<String>();
            l.addAll(keys);//from w ww.  j a va  2  s .  co m

            Collections.sort(l, collator);

            if (direction == SWT.DOWN) {
                Collections.reverse(l);
                table.setSortDirection(SWT.UP);
            } else {
                table.setSortDirection(SWT.DOWN);
            }

            table.removeAll();

            Iterator<String> itr = l.iterator();
            String key = null;
            String value = null;

            while (itr.hasNext()) {
                key = itr.next();
                if (StringUtils.isNotBlank(key)) {
                    TableItem ti = new TableItem(table, SWT.BORDER);
                    ti.setText(0, key);
                    value = map.get(key);
                    if (StringUtils.isNotBlank(value)) {
                        ti.setText(1, value);
                    }
                }

            }

            table.setSortColumn(column);
        }
    };

    return sortListener;
}

---

From source file:org.dspace.orm.entity.Community.java

@Transient
public List<Community> getHierarchyList() {
    List<Community> parents = new ArrayList<Community>();
    Community tmp = this;
    while (tmp != null) {
        if (tmp.hasParents()) {
            tmp = tmp.getParent();/*from www . j av a 2 s  .c o  m*/
            if (tmp != null)
                parents.add(tmp);
        } else
            tmp = null;
    }
    Collections.reverse(parents);
    return parents;
}

---

From source file:graph.inference.module.DisjointWithWorker.java

private Collection<? extends Node[]> alterGenlJustification(QueryObject genlResults, DAGNode disjointNode,
        boolean isReversed) {
    TransitiveIntervalSchemaModule transModule = (TransitiveIntervalSchemaModule) dag_
            .getModule(TransitiveIntervalSchemaModule.class);
    if (transModule != null && transModule.isReady()) {
        DAGNode baseNode = (DAGNode) genlResults.getNode(1);
        List<Node[]> justification = transModule.justifyTransitive(baseNode, disjointNode);
        if (isReversed)
            Collections.reverse(justification);
        return justification;
    }//  w w w. ja  v  a 2s  .  c om

    List<Node[]> justifications = genlResults.getJustification();
    int i = 0;
    for (i = 0; i < justifications.size(); i++) {
        Node[] nodes = justifications.get(i);
        if (nodes[1].equals(disjointNode))
            break;
        if (nodes[2].equals(disjointNode)) {
            i++;
            break;
        }
    }
    justifications = justifications.subList(0, i);
    genlResults.cleanTransitiveJustification(justifications);

    if (isReversed) {
        List<Node[]> reversed = new ArrayList<>(genlResults.getJustification());
        Collections.reverse(reversed);
        return reversed;
    }
    return genlResults.getJustification();
}

---

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