Example usage for java.util Map remove

Introduction

In this page you can find the example usage for java.util Map remove.

Prototype

V remove(Object key);

Source Link

Document

Removes the mapping for a key from this map if it is present (optional operation).

Usage

From source file:Main.java

/**
 * Removes all the given keys from the given map and adds their
 * corresponding values to the given collection.
 *
 * @param <TKey> The type of the keys of the map.
 * @param <TValue> The types of the values of the map.
 * @param target The map to remove the specified keys from.
 * @param keys An iterator providing the keys to be removed.
 * @param values A collection where the values corresponding to the given
 * keys are added./* w w  w  .  j a  v  a  2s .c om*/
 * @note In case the target or the keys are not effective, nothing happens.
 * @note In case values is not effective, the keys are removed without
 * adding them.
 */
public static <TKey, TValue> void removeAll(final Map<TKey, TValue> target, final Iterator<? extends TKey> keys,
        Collection<? super TValue> values) {
    if (values != null) {
        if (target != null && keys != null) {
            while (keys.hasNext()) {
                values.add(target.remove(keys.next()));
            }
        }
    } else {
        removeAll(target, keys);
    }
}

From source file:com.exzogeni.dk.http.HttpTask.java

@NonNull
private static Map<String, List<String>> getHeaderFields(HttpURLConnection cn) {
    final Map<String, List<String>> headers = cn.getHeaderFields();
    if (headers != null) {
        final Map<String, List<String>> localHeaders = new HashMap<>(headers);
        localHeaders.remove(null);
        return Collections.unmodifiableMap(localHeaders);
    }/*from  w w  w  .jav  a2s .  co  m*/
    return Collections.emptyMap();
}

From source file:com.baidu.rigel.biplatform.ac.util.ThreadLocalPlaceholder.java

/**
 * Remove the object from thread.//from  w ww . j  ava 2s. c om
 * 
 * @param key
 *            key of object
 */
public static void unbindProperty(Object key) {

    if (key == null) {
        throw new IllegalArgumentException("Parameter must not be null");
    }

    // Get Current Thread Map
    Map<Object, Object> propertiesMap = getThreadMap();
    if (!propertiesMap.containsKey(key)) {
        LOG.debug("Removed value [" + key + "] from thread [" + Thread.currentThread().getName() + "]");
    }

    propertiesMap.remove(key);

    LOG.debug("Removed key [" + key + "] from thread [" + Thread.currentThread().getName() + "]");
}

From source file:Main.java

public static void printDetails(Map<String, String> map) {
    String usage = map.get("CSS");
    System.out.println("Map: " + map);
    System.out.println("Map Size:  " + map.size());
    System.out.println("Map is empty:  " + map.isEmpty());
    System.out.println("Map contains CSS key:   " + map.containsKey("CSS"));
    System.out.println("Usage:  " + usage);
    System.out.println("removed:  " + map.remove("CSS"));
}

From source file:org.wso2.carbon.appmgt.gateway.handlers.Utils.java

public static void sendFault(MessageContext messageContext, int status) {
    org.apache.axis2.context.MessageContext axis2MC = ((Axis2MessageContext) messageContext)
            .getAxis2MessageContext();

    axis2MC.setProperty(NhttpConstants.HTTP_SC, status);
    messageContext.setResponse(true);// w  w  w  .  ja v a 2s . com
    messageContext.setProperty("RESPONSE", "true");
    messageContext.setTo(null);
    axis2MC.removeProperty("NO_ENTITY_BODY");
    String method = (String) axis2MC.getProperty(Constants.Configuration.HTTP_METHOD);
    if (method.matches("^(?!.*(POST|PUT)).*$")) {
        // If the request was not an entity enclosing request, send a XML response back
        axis2MC.setProperty(Constants.Configuration.MESSAGE_TYPE, "application/xml");
    }
    // Always remove the ContentType - Let the formatter do its thing
    axis2MC.removeProperty(Constants.Configuration.CONTENT_TYPE);
    Map headers = (Map) axis2MC.getProperty(org.apache.axis2.context.MessageContext.TRANSPORT_HEADERS);
    if (headers != null) {
        headers.remove(HttpHeaders.AUTHORIZATION);
        // headers.remove(HttpHeaders.ACCEPT);
        headers.remove(HttpHeaders.AUTHORIZATION);
        //headers.remove(HttpHeaders.ACCEPT);
        //Default we will send xml out put if error_message_type is json then we will send json response to client
        // We can set this parameter in _auth_failure_handler_ as follows
        /*<sequence name="_auth_failure_handler_">
        <property name="error_message_type" value="application/json"/>
        <sequence key="_build_"/>
        </sequence>     */
        if (messageContext.getProperty("error_message_type") != null && messageContext
                .getProperty("error_message_type").toString().equalsIgnoreCase("application/json")) {
            axis2MC.setProperty(Constants.Configuration.MESSAGE_TYPE, "application/json");
        }

        headers.remove(HttpHeaders.HOST);
    }
    Axis2Sender.sendBack(messageContext);
}

From source file:net.sf.groovyMonkey.GroovyMonkeyPlugin.java

public static void removeScript(final String name) {
    final Map<String, ScriptMetadata> store = scriptStore();
    final ScriptMetadata oldScript = store.remove(name);
    if (oldScript == null)
        return;/*from  w w  w  .  j a  va  2 s  . c  om*/
    oldScript.unsubscribe();
}

From source file:com.elasticbox.jenkins.k8s.util.TestUtils.java

public static void clearEnv(String... keys) {
    try {/* w w  w .  j a v  a  2s.  c  o m*/
        Class<?> processEnvironmentClass = Class.forName("java.lang.ProcessEnvironment");
        Field theEnvironmentField = processEnvironmentClass.getDeclaredField("theEnvironment");
        theEnvironmentField.setAccessible(true);
        Map<String, String> env = (Map<String, String>) theEnvironmentField.get(null);
        for (String key : keys) {
            env.remove(key);
        }
        Field theCaseInsensitiveEnvironmentField = processEnvironmentClass
                .getDeclaredField("theCaseInsensitiveEnvironment");
        theCaseInsensitiveEnvironmentField.setAccessible(true);
        Map<String, String> cienv = (Map<String, String>) theCaseInsensitiveEnvironmentField.get(null);
        for (String key : keys) {
            cienv.remove(key);
        }
    } catch (NoSuchFieldException e) {
        try {
            Class[] classes = Collections.class.getDeclaredClasses();
            Map<String, String> env = System.getenv();
            for (Class cl : classes) {
                if ("java.util.Collections$UnmodifiableMap".equals(cl.getName())) {
                    Field field = cl.getDeclaredField("m");
                    field.setAccessible(true);
                    Object obj = field.get(env);
                    Map<String, String> map = (Map<String, String>) obj;
                    for (String key : keys) {
                        map.remove(key);
                    }
                }
            }
        } catch (Exception e2) {
            e2.printStackTrace();
        }
    } catch (Exception e1) {
        e1.printStackTrace();
    }
}

From source file:Main.java

/**
 * Removes the entries of a map that have null values.
 * //  w w w .  ja v  a  2s .c  o m
 * @param map
 *            The map to strip.
 * @return The map that was passed in.
 */
public static <K, V> Map<K, V> stripNulls(final Map<K, V> map) {
    List<Object> toRemove = null;
    for (final Object key : map.keySet()) {
        if (map.get(key) == null) {
            toRemove = safeAdd(toRemove, key);
        }
    }
    if (toRemove != null) {
        for (final Object key : toRemove) {
            map.remove(key);
        }
    }
    return map;
}

From source file:com.sun.faces.application.ApplicationAssociate.java

public static void clearInstance(ExternalContext externalContext) {
    Map applicationMap = externalContext.getApplicationMap();
    applicationMap.remove(ASSOCIATE_KEY);
}

From source file:org.wso2.carbon.appmgt.gateway.utils.GatewayUtils.java

private static void removeIrrelevantHeadersBeforeResponding(Map headerMap) {
    headerMap.remove(HttpHeaders.HOST);
    headerMap.remove(HTTPConstants.HEADER_COOKIE);
}