Example usage for java.util HashMap isEmpty

List of usage examples for java.util HashMap isEmpty

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Introduction

In this page you can find the example usage for java.util HashMap isEmpty.

Prototype

public boolean isEmpty()

Source Link

Document

Returns true if this map contains no key-value mappings.

Usage

From source file:org.archive.crawler.framework.CrawlJob.java

/**
 * Did the ApplicationContext self-validate? 
 * return true if validation passed without errors
 *//*from  www .  j  av a 2s . c  o  m*/
public synchronized boolean hasValidApplicationContext() {
    if (ac == null) {
        return false;
    }
    HashMap<String, Errors> allErrors = ac.getAllErrors();
    return allErrors != null && allErrors.isEmpty();
}

From source file:org.wso2.carbon.device.mgt.core.service.DeviceManagementProviderServiceTest.java

@Test(dependsOnMethods = { "testSuccessfulDeviceEnrollment" })
public void testGetTenantedDevice() throws DeviceManagementException {
    HashMap<Integer, Device> deviceMap = deviceMgtService
            .getTenantedDevice(new DeviceIdentifier(DEVICE_ID, DEVICE_TYPE));
    if (!isMock()) {
        Assert.assertTrue(!deviceMap.isEmpty());
    }//from w  ww .j  a  v a2  s  .c o  m
}

From source file:com.makotosan.vimeodroid.vimeo.Methods.java

private XmlPullParser makeRequest(String method, HashMap<String, String> parameters) {
    final StringBuilder urlStringBuilder = new StringBuilder();
    try {// www . j  ava 2 s. com
        urlStringBuilder.append(VimeoUrls.STANDARD_API + "?method=vimeo." + method);
        final ConsumerInfo info = getConsumerInfo();

        if (parameters != null && !parameters.isEmpty()) {
            for (String key : parameters.keySet()) {
                urlStringBuilder.append("&" + key + "=" + parameters.get(key));
            }
            if (!parameters.containsKey("user_id")) {
                urlStringBuilder.append("&user_id=" + info.getConsumerToken());
            }
        }

        final HttpGet request = new HttpGet(urlStringBuilder.toString());
        request.addHeader("Accept-Encoding", "gzip");

        final HttpClient client = this.app.getHttpClient();

        Authentication.signRequest(info, request);

        final org.apache.http.HttpResponse response = client.execute(request);
        final int statusCode = response.getStatusLine().getStatusCode();
        // Log.d("HTTP method : " + method, "return statusCode : " +
        // statusCode);

        if (statusCode != 200) {
            throw new HttpResponseException(statusCode, "HTTP Error");
        }

        final HttpEntity entity = response.getEntity();
        if (entity != null) {
            InputStream inputStream = null;
            try {
                inputStream = entity.getContent();
                final Header contentEncoding = response.getFirstHeader("Content-Encoding");
                if (contentEncoding != null && contentEncoding.getValue().equalsIgnoreCase("gzip")) {
                    inputStream = new GZIPInputStream(inputStream);
                }

                final XmlPullParserFactory factory = XmlPullParserFactory.newInstance();
                final XmlPullParser xpp = factory.newPullParser();
                final String rawXml = IOUtils.toString(inputStream);
                xpp.setInput(new StringReader(rawXml));
                int eventType = xpp.getEventType();
                while (eventType != XmlPullParser.END_DOCUMENT) {
                    switch (eventType) {
                    case XmlPullParser.START_TAG:
                        if ("rsp".equals(xpp.getName())) {
                            String status = xpp.getAttributeValue(XmlPullParser.NO_NAMESPACE, "stat");
                            if ("fail".equals(status)) {
                                ErrorInfo error = VimeoXmlParser.parse(ErrorInfo.class, xpp);
                                Log.e(TAG, error.getExplanation());
                                Toast.makeText(context, error.getExplanation(), Toast.LENGTH_LONG).show();
                                return null;
                                // throw new
                                // Exception(error.getExplanation());
                            }
                            return xpp;
                        }
                        break;
                    }

                    eventType = xpp.next();
                }
                return xpp;
            } finally {
                if (inputStream != null) {
                    inputStream.close();
                }
                entity.consumeContent();
            }
        }
    } catch (Exception e) {
        Log.e(TAG, e.getMessage(), e);
        // Toast.makeText(context, e.getMessage(),
        // Toast.LENGTH_SHORT).show();
    }

    return null;
}

From source file:gov.llnl.lc.smt.command.port.SmtPort.java

/**
 * Describe the method here/*from   w w w.  j  av  a 2 s  .c om*/
 *
 * @see     describe related java objects
 *
 * @param subCommandArg
 * @return
 ***********************************************************/
private OSM_Port getOSM_PortByString(String subCommandArg) {
    // return the first match
    HashMap<String, OSM_Port> ports = getOSM_PortsByString(subCommandArg);
    if (ports.isEmpty())
        return null;

    return ports.values().iterator().next();
}

From source file:eionet.cr.api.xmlrpc.XmlRpcServices.java

@Override
public List getResourcesSinceTimestamp(Date timestamp) throws CRException {

    if (logger.isInfoEnabled()) {
        logger.info("Entered " + Thread.currentThread().getStackTrace()[1].getMethodName());
    }//from   w  w  w  . ja v  a 2  s .c om

    List<Map<String, String[]>> result = new ArrayList<Map<String, String[]>>();
    if (timestamp != null) {

        // given timestamp must be less than current time (in seconds)
        long curTimeSeconds = Util.currentTimeSeconds();
        long givenTimeSeconds = Util.getSeconds(timestamp.getTime());
        if (givenTimeSeconds < curTimeSeconds) {

            try {
                Collection<SubjectDTO> subjects = DAOFactory.get().getDao(HelperDAO.class)
                        .getSubjectsNewerThan(timestamp, MAX_RESULTS);

                for (Iterator<SubjectDTO> subjectsIter = subjects.iterator(); subjectsIter.hasNext();) {

                    SubjectDTO subjectDTO = subjectsIter.next();
                    HashMap<String, String[]> map = new HashMap<String, String[]>();
                    for (Iterator<String> predicatesIter = subjectDTO.getPredicates().keySet()
                            .iterator(); predicatesIter.hasNext();) {

                        String predicate = predicatesIter.next();
                        map.put(predicate, toStringArray(subjectDTO.getObjects(predicate)));
                    }

                    // if map not empty and the subject has a URL (i.e. getUrl() is not blank)
                    // then add the map to result
                    if (!map.isEmpty()) {
                        String url = subjectDTO.getUrl();
                        if (!StringUtils.isBlank(url)) {
                            String[] arr = new String[1];
                            arr[0] = url;
                            map.put(Predicates.CR_URL, arr); // QAW needs this special reserved predicate
                            result.add(map);
                        }
                    }
                }
            } catch (Throwable t) {
                t.printStackTrace();
                if (t instanceof CRException) {
                    throw (CRException) t;
                } else {
                    throw new CRException(t.toString(), t);
                }
            }

        }
    }

    return result;
}

From source file:org.apache.hadoop.hive.ql.parse.NewGroupByUtils1.java

private void genDistTag2Aggr(QB qb, String dest, ArrayList<ArrayList<Integer>> tag2AggrPos,
        ArrayList<ArrayList<ASTNode>> distTag2AggrParamAst,
        HashMap<Integer, ArrayList<Integer>> nonDistPos2TagOffs) {

    HashMap<String, ASTNode> aggregationTrees = qb.getParseInfo().getAggregationExprsForClause(dest);
    if (aggregationTrees == null || aggregationTrees.isEmpty()) {
        return;/*from   ww  w .  ja  va2s  . c  om*/
    }
    tag2AggrPos.clear();
    distTag2AggrParamAst.clear();
    tag2AggrPos.add(new ArrayList<Integer>());
    distTag2AggrParamAst.add(new ArrayList<ASTNode>());
    HashMap<String, Integer> treeidx = new HashMap<String, Integer>();
    HashMap<Integer, HashSet<String>> tag2paramaststr = new HashMap<Integer, HashSet<String>>();
    int pos = 0;
    for (Map.Entry<String, ASTNode> entry : aggregationTrees.entrySet()) {
        ASTNode value = entry.getValue();
        String[] params = new String[value.getChildCount() - 1];
        for (int i = 1; i < value.getChildCount(); i++) {
            params[i - 1] = value.getChild(i).toStringTree();
        }
        Arrays.sort(params);
        ArrayList<String> params1 = new ArrayList<String>();
        params1.add(params[0]);
        String curr = params[0];
        for (int i = 1; i < params.length; i++) {
            if (!curr.equalsIgnoreCase(params[i])) {
                params1.add(params[i]);
                curr = params[i];
            }
        }

        StringBuffer sb = new StringBuffer();
        sb.append(value.getToken().getType());
        for (int i = 0; i < params1.size(); i++) {
            sb.append(params1.get(i));
        }
        String asttree = sb.toString();

        if (!treeidx.containsKey(asttree)) {
            if (value.getToken().getType() == HiveParser.TOK_FUNCTIONDI) {
                int disttag = tag2AggrPos.size();
                treeidx.put(asttree, disttag);
                tag2AggrPos.add(new ArrayList<Integer>());
                distTag2AggrParamAst.add(new ArrayList<ASTNode>());
                if (!tag2paramaststr.containsKey(disttag)) {
                    tag2paramaststr.put(disttag, new HashSet<String>());
                }
                for (int i = 1; i < value.getChildCount(); i++) {
                    ASTNode param = (ASTNode) value.getChild(i);
                    if (!tag2paramaststr.get(disttag).contains(param.toStringTree())) {
                        tag2paramaststr.get(disttag).add(param.toStringTree());
                        distTag2AggrParamAst.get(distTag2AggrParamAst.size() - 1).add(param);
                    }
                }
            } else {
                if (!tag2paramaststr.containsKey(0)) {
                    tag2paramaststr.put(0, new HashSet<String>());
                }
                treeidx.put(asttree, 0);
                for (int i = 1; i < value.getChildCount(); i++) {
                    ASTNode param = (ASTNode) value.getChild(i);
                    if (!tag2paramaststr.get(0).contains(param.toStringTree())) {
                        tag2paramaststr.get(0).add(param.toStringTree());
                        distTag2AggrParamAst.get(0).add(param);
                    }
                }
            }
        }
        if (value.getToken().getType() != HiveParser.TOK_FUNCTIONDI) {
            nonDistPos2TagOffs.put(pos, new ArrayList<Integer>());
            for (int i = 1; i < value.getChildCount(); i++) {
                String param = value.getChild(i).toStringTree();
                int idx = -1;
                for (int j = 0; j < distTag2AggrParamAst.get(0).size(); j++) {
                    if (distTag2AggrParamAst.get(0).get(j).toStringTree().equals(param)) {
                        idx = j;
                        break;
                    }
                }
                nonDistPos2TagOffs.get(pos).add(idx);
            }
        }

        tag2AggrPos.get(treeidx.get(asttree)).add(pos);
        pos++;
    }

    LOG.debug("distTag2AggrPos:\t" + tag2AggrPos);
    for (int i = 0; i < tag2AggrPos.size(); i++) {
        LOG.debug("distTag2AggrPos[" + i + "]:\t" + tag2AggrPos.get(i));
    }
    LOG.debug("distTag2AggrParamAst:\t" + distTag2AggrParamAst);
    for (int i = 0; i < distTag2AggrParamAst.size(); i++) {
        StringBuffer sb = new StringBuffer();
        for (int j = 0; j < distTag2AggrParamAst.get(i).size(); j++) {
            sb.append(distTag2AggrParamAst.get(i).get(j).toStringTree()).append("\t");
        }
        LOG.debug("distTag2AggrParamAst[" + i + "]:\t" + sb.toString());
    }
    LOG.debug("nonDistPos2TagOffs:\t" + nonDistPos2TagOffs);
    for (Integer key : nonDistPos2TagOffs.keySet()) {
        LOG.debug("nonDistPos2TagOffs[" + key + "]:\t" + nonDistPos2TagOffs.get(key));
    }
}

From source file:org.apache.hadoop.hbase.backup.impl.IncrementalBackupManager.java

/**
 * Get list of WAL files eligible for incremental backup
 * @return list of WAL files/*from www . j  a  va 2  s.  c om*/
 * @throws IOException
 */
public List<String> getIncrBackupLogFileList() throws IOException {
    List<String> logList;
    HashMap<String, Long> newTimestamps;
    HashMap<String, Long> previousTimestampMins;

    String savedStartCode = readBackupStartCode();

    // key: tableName
    // value: <RegionServer,PreviousTimeStamp>
    HashMap<TableName, HashMap<String, Long>> previousTimestampMap = readLogTimestampMap();

    previousTimestampMins = BackupUtils.getRSLogTimestampMins(previousTimestampMap);

    if (LOG.isDebugEnabled()) {
        LOG.debug("StartCode " + savedStartCode + "for backupID " + backupInfo.getBackupId());
    }
    // get all new log files from .logs and .oldlogs after last TS and before new timestamp
    if (savedStartCode == null || previousTimestampMins == null || previousTimestampMins.isEmpty()) {
        throw new IOException("Cannot read any previous back up timestamps from backup system table. "
                + "In order to create an incremental backup, at least one full backup is needed.");
    }

    newTimestamps = readRegionServerLastLogRollResult();

    logList = getLogFilesForNewBackup(previousTimestampMins, newTimestamps, conf, savedStartCode);
    List<WALItem> logFromSystemTable = getLogFilesFromBackupSystem(previousTimestampMins, newTimestamps,
            getBackupInfo().getBackupRootDir());

    logList = excludeAlreadyBackedUpWALs(logList, logFromSystemTable);
    backupInfo.setIncrBackupFileList(logList);

    return logList;
}

From source file:org.apache.hadoop.hbase.backup.impl.IncrementalBackupManager.java

/**
 * Obtain the list of logs that need to be copied out for this incremental backup. The list is set
 * in BackupInfo.//from  ww w .ja va 2  s  . c  o m
 * @return The new HashMap of RS log time stamps after the log roll for this incremental backup.
 * @throws IOException exception
 */
public HashMap<String, Long> getIncrBackupLogFileMap() throws IOException {
    List<String> logList;
    HashMap<String, Long> newTimestamps;
    HashMap<String, Long> previousTimestampMins;

    String savedStartCode = readBackupStartCode();

    // key: tableName
    // value: <RegionServer,PreviousTimeStamp>
    HashMap<TableName, HashMap<String, Long>> previousTimestampMap = readLogTimestampMap();

    previousTimestampMins = BackupUtils.getRSLogTimestampMins(previousTimestampMap);

    if (LOG.isDebugEnabled()) {
        LOG.debug("StartCode " + savedStartCode + "for backupID " + backupInfo.getBackupId());
    }
    // get all new log files from .logs and .oldlogs after last TS and before new timestamp
    if (savedStartCode == null || previousTimestampMins == null || previousTimestampMins.isEmpty()) {
        throw new IOException("Cannot read any previous back up timestamps from backup system table. "
                + "In order to create an incremental backup, at least one full backup is needed.");
    }

    LOG.info("Execute roll log procedure for incremental backup ...");
    HashMap<String, String> props = new HashMap<String, String>();
    props.put("backupRoot", backupInfo.getBackupRootDir());

    try (Admin admin = conn.getAdmin();) {

        admin.execProcedure(LogRollMasterProcedureManager.ROLLLOG_PROCEDURE_SIGNATURE,
                LogRollMasterProcedureManager.ROLLLOG_PROCEDURE_NAME, props);

    }
    newTimestamps = readRegionServerLastLogRollResult();

    logList = getLogFilesForNewBackup(previousTimestampMins, newTimestamps, conf, savedStartCode);
    List<WALItem> logFromSystemTable = getLogFilesFromBackupSystem(previousTimestampMins, newTimestamps,
            getBackupInfo().getBackupRootDir());
    logList = excludeAlreadyBackedUpWALs(logList, logFromSystemTable);
    backupInfo.setIncrBackupFileList(logList);

    return newTimestamps;
}

From source file:org.apache.phoenix.mapreduce.OrphanViewTool.java

/**
 * Starting from the child views of the base tables from baseSet, visit views level by level and identify
 * missing or broken links, and thereby identify orphan vies
 *//*from  ww  w.j  av  a  2 s  . c  om*/
private void visitViewsLevelByLevelAndIdentifyOrphanViews() {
    if (baseSet.isEmpty())
        return;
    HashMap<Key, View> viewSet = new HashMap<>();
    viewSetArray.add(0, viewSet);
    // Remove the child views of the tables of baseSet from orphanViewSet and add them to viewSetArray[0]
    // if these views have the correct physical link
    for (Map.Entry<Key, Base> baseEntry : baseSet.entrySet()) {
        for (Key child : baseEntry.getValue().childViews) {
            View childView = orphanViewSet.get(child);
            if (childView != null && childView.base != null && childView.base.equals(baseEntry.getKey())) {
                orphanViewSet.remove(child);
                viewSet.put(child, childView);
            }
        }
    }
    HashMap<Key, View> parentViewSet = viewSet;
    // Remove the child views of  viewSetArray[N] from orphanViewSet and add them to viewSetArray[N+1]
    // if these view have the correct physical link and parent link
    maxViewLevel = 1;
    for (int i = 1; !parentViewSet.isEmpty(); i++) {
        HashMap<Key, View> childViewSet = new HashMap<>();
        viewSetArray.add(i, childViewSet);
        for (Map.Entry<Key, View> viewEntry : parentViewSet.entrySet()) {
            View parentView = viewEntry.getValue();
            Key parentKey = viewEntry.getKey();
            if (parentView.isParent()) {
                for (Key child : parentView.childViews) {
                    View childView = orphanViewSet.get(child);
                    if (childView != null && childView.parent != null && childView.parent.equals(parentKey)
                            && childView.base != null && childView.base.equals(parentView.base)) {
                        orphanViewSet.remove(child);
                        childViewSet.put(child, childView);
                    }
                }
            }
        }
        parentViewSet = childViewSet;
        maxViewLevel += 1;
    }
}

From source file:org.dcm4chex.archive.hsm.VerifyTar.java

public static Map<String, byte[]> verify(InputStream in, String tarname, byte[] buf,
        ArrayList<String> objectNames) throws IOException, VerifyTarException {
    TarInputStream tar = new TarInputStream(in);
    try {/*from   w w  w  . ja v  a 2  s.c o m*/
        log.debug("Verify tar file: {}", tarname);
        TarEntry entry = tar.getNextEntry();
        if (entry == null)
            throw new VerifyTarException("No entries in " + tarname);
        String entryName = entry.getName();
        if (!"MD5SUM".equals(entryName))
            throw new VerifyTarException("Missing MD5SUM entry in " + tarname);
        BufferedReader dis = new BufferedReader(new InputStreamReader(tar));

        HashMap<String, byte[]> md5sums = new HashMap<String, byte[]>();
        String line;
        while ((line = dis.readLine()) != null) {
            char[] c = line.toCharArray();
            byte[] md5sum = new byte[16];
            for (int i = 0, j = 0; i < md5sum.length; i++, j++, j++) {
                md5sum[i] = (byte) ((fromHexDigit(c[j]) << 4) | fromHexDigit(c[j + 1]));
            }
            md5sums.put(line.substring(34), md5sum);
        }
        Map<String, byte[]> entries = new HashMap<String, byte[]>(md5sums.size());
        entries.putAll(md5sums);
        MessageDigest digest;
        try {
            digest = MessageDigest.getInstance("MD5");
        } catch (NoSuchAlgorithmException e) {
            throw new RuntimeException(e);
        }
        while ((entry = tar.getNextEntry()) != null) {
            entryName = entry.getName();
            log.debug("START: Check MD5 of entry: {}", entryName);
            if (objectNames != null && !objectNames.remove(entryName))
                throw new VerifyTarException(
                        "TAR " + tarname + " contains entry: " + entryName + " not in file list");
            byte[] md5sum = (byte[]) md5sums.remove(entryName);
            if (md5sum == null)
                throw new VerifyTarException("Unexpected TAR entry: " + entryName + " in " + tarname);
            digest.reset();
            in = new DigestInputStream(tar, digest);
            while (in.read(buf) > 0)
                ;
            if (!Arrays.equals(digest.digest(), md5sum)) {
                throw new VerifyTarException("Failed MD5 check of TAR entry: " + entryName + " in " + tarname);
            }
            log.debug("DONE: Check MD5 of entry: {}", entryName);
        }
        if (!md5sums.isEmpty())
            throw new VerifyTarException("Missing TAR entries: " + md5sums.keySet() + " in " + tarname);
        if (objectNames != null && !objectNames.isEmpty())
            throw new VerifyTarException(
                    "Missing TAR entries from object list: " + objectNames.toString() + " in " + tarname);
        return entries;
    } finally {
        tar.close();
    }
}