java.util.LinkedHashMap.get()方法的使用及代码示例

x33g5p2x  于2022-01-17 转载在 其他  
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本文整理了Java中java.util.LinkedHashMap.get()方法的一些代码示例，展示了LinkedHashMap.get()的具体用法。这些代码示例主要来源于Github/Stackoverflow/Maven等平台，是从一些精选项目中提取出来的代码，具有较强的参考意义，能在一定程度帮忙到你。LinkedHashMap.get()方法的具体详情如下：
包路径：java.util.LinkedHashMap
类名称：LinkedHashMap
方法名：get

LinkedHashMap.get介绍

[英]Returns the value of the mapping with the specified key.
[中]返回具有指定键的映射的值。

代码示例

代码示例来源：origin: ch.qos.logback/logback-classic

int getMessageCountAndThenIncrement(String msg) {
  // don't insert null elements
  if (msg == null) {
    return 0;
  }
  Integer i;
  // LinkedHashMap is not LinkedHashMap. See also LBCLASSIC-255
  synchronized (this) {
    i = super.get(msg);
    if (i == null) {
      i = 0;
    } else {
      i = i + 1;
    }
    super.put(msg, i);
  }
  return i;
}

代码示例来源：origin: lipangit/JiaoZiVideoPlayer

public Object getValueFromLinkedMap(int index) {
  int currentIndex = 0;
  for (Object key : urlsMap.keySet()) {
    if (currentIndex == index) {
      return urlsMap.get(key);
    }
    currentIndex++;
  }
  return null;
}

代码示例来源：origin: jeasonlzy/okhttp-OkGo

private void put(String key, String value, boolean isReplace) {
  if (key != null && value != null) {
    List<String> urlValues = urlParamsMap.get(key);
    if (urlValues == null) {
      urlValues = new ArrayList<>();
      urlParamsMap.put(key, urlValues);
    }
    if (isReplace) urlValues.clear();
    urlValues.add(value);
  }
}

代码示例来源：origin: apache/kafka

List<TopicPartition> altered = new ArrayList<>();
for (Iterator<Entry<TopicPartition, PartitionData>> iter =
     sessionPartitions.entrySet().iterator(); iter.hasNext(); ) {
  Entry<TopicPartition, PartitionData> entry = iter.next();
  TopicPartition topicPartition = entry.getKey();
  PartitionData prevData = entry.getValue();
  PartitionData nextData = next.get(topicPartition);
  if (nextData != null) {
    if (prevData.equals(nextData)) {
      next.put(topicPartition, nextData);
      entry.setValue(nextData);
      altered.add(topicPartition);
    removed.add(topicPartition);
for (Entry<TopicPartition, PartitionData> entry : next.entrySet()) {
  TopicPartition topicPartition = entry.getKey();
  PartitionData nextData = entry.getValue();
  if (sessionPartitions.containsKey(topicPartition)) {
  sessionPartitions.put(topicPartition, nextData);
  added.add(topicPartition);
    partitionsToLogString(sessionPartitions.keySet()));
Map<TopicPartition, PartitionData> toSend =
  Collections.unmodifiableMap(new LinkedHashMap<>(next));

代码示例来源：origin: zendesk/maxwell

public RowIdentity getRowIdentity() {
  if (rowIdentity == null) {
    List<Pair<String, Object>> entries = new ArrayList<>(pkColumns.size());
    for (String pk: pkColumns) {
      entries.add(Pair.of(pk, data.get(pk)));
    }
    rowIdentity = new RowIdentity(database, table, entries);
  }
  return rowIdentity;
}

代码示例来源：origin: sannies/mp4parser

protected static List<byte[]> extractImages(Document ttml) throws XPathExpressionException, URISyntaxException, IOException {
  XPathFactory xPathfactory = XPathFactory.newInstance();
  XPath xpath = xPathfactory.newXPath();
  XPathExpression expr = xpath.compile("//*/@backgroundImage");
  NodeList nl = (NodeList) expr.evaluate(ttml, XPathConstants.NODESET);
  LinkedHashMap<String, String> internalNames2Original = new LinkedHashMap<String, String>();
  int p = 1;
  for (int i = 0; i < nl.getLength(); i++) {
    Node bgImageNode = nl.item(i);
    String uri = bgImageNode.getNodeValue();
    String ext = uri.substring(uri.lastIndexOf("."));
    String internalName = internalNames2Original.get(uri);
    if (internalName == null) {
      internalName = "urn:mp4parser:" + p++ + ext;
      internalNames2Original.put(internalName, uri);
    }
    bgImageNode.setNodeValue(internalName);
  }
  List<byte[]> images = new ArrayList<byte[]>();
  if (!internalNames2Original.isEmpty()) {
    for (Map.Entry<String, String> internalName2Original : internalNames2Original.entrySet()) {
      URI pic = new URI(ttml.getDocumentURI()).resolve(internalName2Original.getValue());
      images.add(streamToByteArray(pic.toURL().openStream()));
    }
  }
  return images;
}

代码示例来源：origin: apache/hive

targetAliasToPartnInfo.remove(targetAlias);
List<Path> pathsToRemove = new ArrayList<>();
for (Entry<Path, ArrayList<String>> entry: targetPathToAliases.entrySet()) {
 ArrayList<String> aliases = entry.getValue();
 aliases.remove(targetAlias);
 if (aliases.isEmpty()) {
  pathsToRemove.add(entry.getKey());
List<Path> pathsToAdd = new ArrayList<>();
for (Entry<Path, ArrayList<String>> entry: sourcePathToAliases.entrySet()) {
 ArrayList<String> aliases = entry.getValue();
 if (aliases.contains(sourceAlias)) {
  pathsToAdd.add(entry.getKey());
 if (!targetPathToAliases.containsKey(pathToAdd)) {
  targetPathToAliases.put(pathToAdd, new ArrayList<String>());
 targetPathToAliases.get(pathToAdd).add(sourceAlias);

代码示例来源：origin: robolectric/robolectric

@Implementation
@HiddenApi
public List<PhoneAccountHandle> getPhoneAccountsSupportingScheme(String uriScheme) {
 List<PhoneAccountHandle> result = new ArrayList<>();
 for (PhoneAccountHandle handle : accounts.keySet()) {
  PhoneAccount phoneAccount = accounts.get(handle);
  if(phoneAccount.getSupportedUriSchemes().contains(uriScheme)) {
   result.add(handle);
  }
 }
 return result;
}

代码示例来源：origin: BroadleafCommerce/BroadleafCommerce

protected void expandFulfilledMap(Map<String, String> originalParameters, Map<String, String> derivedParameters, List<String> utilizedNames) {
  for (Map.Entry<String, String> entry : originalParameters.entrySet()) {
    if (namedOperations.containsKey(entry.getKey())) {
      expandFulfilledMap(namedOperations.get(entry.getKey()), derivedParameters, utilizedNames);
      if (!utilizedNames.contains(entry.getKey())) {
        utilizedNames.add(entry.getKey());
      }
    } else {
      derivedParameters.put(entry.getKey(), entry.getValue());
    }
  }
}

代码示例来源：origin: pentaho/pentaho-kettle

coll.add( i );
metaNameToIndex.put( metaFieldNames[i], coll );
 List<Integer> columnIndexes = metaNameToIndex.get( actualFieldNames[ i ] );
 if ( columnIndexes == null || columnIndexes.isEmpty() ) {
  unmatchedMetaFields.add( i );
  actualToMetaFieldMapping[ i ] = FIELD_DOES_NOT_EXIST;
  continue;

代码示例来源：origin: apache/hive

Map<TableDesc, StructObjectInspector> convertedOI = getConvertedOI(tableNameToConf);
for (Map.Entry<Path, ArrayList<String>> entry : conf.getPathToAliases().entrySet()) {
 Path onefile = entry.getKey();
 List<String> aliases = entry.getValue();
 PartitionDesc partDesc = conf.getPathToPartitionInfo().get(onefile);
 TableDesc tableDesc = partDesc.getTableDesc();
 Configuration newConf = tableNameToConf.get(tableDesc.getTableName());
  Operator<? extends OperatorDesc> op = conf.getAliasToWork().get(alias);
  if (LOG.isDebugEnabled()) {
   LOG.debug("Adding alias " + alias + " to work list for file "
   op.getParentOperators().add(this);
   children.add(op);

代码示例来源：origin: apache/ignite

cols.put(col.getName(), parseColumn(col));
if (cols.containsKey(QueryUtils.KEY_FIELD_NAME.toUpperCase()) ||
  cols.containsKey(QueryUtils.VAL_FIELD_NAME.toUpperCase()))
  throw new IgniteSQLException("Direct specification of _KEY and _VAL columns is forbidden",
    IgniteQueryErrorCode.PARSING);
  GridSqlColumn gridCol = cols.get(pkIdxCol.columnName);
    processExtraParam(e.getKey(), e.getValue(), res);

代码示例来源：origin: gocd/gocd

private static void addToHistory(LinkedHashMap<String, Properties> propHistory, Map<String, Object> flatMap) {
  String id = String.valueOf(flatMap.get("pipelineid"));
  String key = (String) flatMap.get("key");
  String value = (String) flatMap.get("value");
  if (!propHistory.containsKey(id)) {
    propHistory.put(id, new Properties());
  }
  propHistory.get(id).add(new Property(key, value));
}

代码示例来源：origin: alibaba/druid

for (LinkedHashMap<String, Object> dataNow : data) {
  for (Iterator<Entry<String, Object>> it = dataNow.entrySet().iterator(); it.hasNext();) {
    Entry<String, Object> entry = it.next();
    String key = entry.getKey();
    Object value = entry.getValue();
    if (JSON_ID_NAME.equals(key)) {
      ids.add(value != null ? value.toString() : null);
    Object arrayData = dataNow.get(arrayKey);
        String newKey = arrayKey + "-" + a + "~" + b + "ms";
        dataNow.put(newKey, arrayDataList.get(j));
        if (dataIndex == 0) {
          REAL_SHOW_LIST.add(newKey);

代码示例来源：origin: redisson/redisson

@Override
public boolean equals(Object other) {
  if (this == other) {
    return true;
  } else if (!(other instanceof AnnotationInvocationHandler)) {
    return false;
  }
  AnnotationInvocationHandler that = (AnnotationInvocationHandler) other;
  if (!annotationType.equals(that.annotationType)) {
    return false;
  }
  for (Map.Entry<Method, AnnotationValue.Loaded<?>> entry : values.entrySet()) {
    if (!entry.getValue().equals(that.values.get(entry.getKey()))) {
      return false;
    }
  }
  return true;
}

代码示例来源：origin: xuxueli/xxl-job

public String route(int jobId, List<String> addressList) {
  // cache clear
  if (System.currentTimeMillis() > CACHE_VALID_TIME) {
    jobLRUMap.clear();
    CACHE_VALID_TIME = System.currentTimeMillis() + 1000*60*60*24;
  }
  // init lru
  LinkedHashMap<String, String> lruItem = jobLRUMap.get(jobId);
  if (lruItem == null) {
    /**
     * LinkedHashMap
     *      a、accessOrder：ture=访问顺序排序（get/put时排序）；false=插入顺序排期；
     *      b、removeEldestEntry：新增元素时将会调用，返回true时会删除最老元素；可封装LinkedHashMap并重写该方法，比如定义最大容量，超出是返回true即可实现固定长度的LRU算法；
     */
    lruItem = new LinkedHashMap<String, String>(16, 0.75f, true);
    jobLRUMap.putIfAbsent(jobId, lruItem);
  }
  // put
  for (String address: addressList) {
    if (!lruItem.containsKey(address)) {
      lruItem.put(address, address);
    }
  }
  // load
  String eldestKey = lruItem.entrySet().iterator().next().getKey();
  String eldestValue = lruItem.get(eldestKey);
  return eldestValue;
}

代码示例来源：origin: apache/hive

public void addAggregationExprsForClause(String clause,
  LinkedHashMap<String, ASTNode> aggregationTrees) {
 if (destToAggregationExprs.containsKey(clause)) {
  destToAggregationExprs.get(clause).putAll(aggregationTrees);
 } else {
  destToAggregationExprs.put(clause, aggregationTrees);
 }
}

代码示例来源：origin: apache/hive

public static ASTNode genSelectDIAST(RowResolver rr) {
 LinkedHashMap<String, LinkedHashMap<String, ColumnInfo>> map = rr.getRslvMap();
 ASTNode selectDI = new ASTNode(SELECTDI_TOKEN);
 // Note: this will determine the order of columns in the result. For now, the columns for each
 //       table will be together; the order of the tables, as well as the columns within each
 //       table, is deterministic, but undefined - RR stores them in the order of addition.
 for (String tabAlias : map.keySet()) {
  for (Entry<String, ColumnInfo> entry : map.get(tabAlias).entrySet()) {
   selectDI.addChild(buildSelExprSubTree(tabAlias, entry.getKey()));
  }
 }
 return selectDI;
}
private static ASTNode buildSelExprSubTree(String tableAlias, String col) {

代码示例来源：origin: wildfly/wildfly

@Override
protected void writeContext(ObjectOutput output, LinkedHashMap<Object, Object> map) throws IOException {
  Object insertOrder = new Object();
  Object accessOrder = new Object();
  map.put(insertOrder, null);
  map.put(accessOrder, null);
  // Access first inserted entry
  // If map uses access order, this element will move to the tail of the map
  map.get(insertOrder);
  Iterator<Object> keys = map.keySet().iterator();
  Object element = keys.next();
  while ((element != insertOrder) && (element != accessOrder)) {
    element = keys.next();
  }
  map.remove(insertOrder);
  map.remove(accessOrder);
  // Map uses access order if previous access changed iteration order
  output.writeBoolean(element == accessOrder);
}

代码示例来源：origin: apache/hive

private boolean isAmbiguousReference(String tableAlias, String colAlias) {
 if(!getCheckForAmbiguity()) {
  return false;
 }
 if(ambiguousColumns == null || ambiguousColumns.isEmpty()) {
  return false;
 }
 if(tableAlias != null) {
  LinkedHashMap<String, String> colAliases = ambiguousColumns.get(tableAlias.toLowerCase());
  if(colAliases != null && colAliases.containsKey(colAlias.toLowerCase())) {
   return true;
  }
 } else {
  for (Map.Entry<String, LinkedHashMap<String, String>> ambigousColsEntry: ambiguousColumns.entrySet()) {
   String rslvKey = ambigousColsEntry.getKey();
   LinkedHashMap<String, String> cmap = ambigousColsEntry.getValue();
   for (Map.Entry<String, String> cmapEnt : cmap.entrySet()) {
    if (colAlias.equalsIgnoreCase(cmapEnt.getKey())) {
     return true;
    }
   }
  }
 }
 return false;
}

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