Example usage for java.util Map isEmpty

Introduction

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

Prototype

boolean isEmpty();

Source Link

Document

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

Usage

From source file:com.spotify.scio.extra.transforms.ProcessUtil.java

static String[] createEnv(Map<String, String> environment) {
    if (environment == null || environment.isEmpty()) {
        return null;
    }/*from w ww. j a v a 2s  . c  o  m*/
    String[] envp = new String[environment.size()];
    int i = 0;
    for (Map.Entry<String, String> e : environment.entrySet()) {
        envp[i] = e.getKey() + "=" + e.getValue();
        i++;
    }
    return envp;
}

From source file:com.capitaltg.bbcodeguard.StringUtils.java

public static String replaceAll(String original, Map<String, String> replacements) {
    if (original == null || replacements == null || replacements.isEmpty()) {
        return original;
    }/*from  ww w  .  j  a  v  a  2 s. c  o  m*/
    StringHolder response = new StringHolder(original);
    replacements.forEach((n, v) -> response.replaceAll("@" + n + "@", v));
    return response.toString();
}

From source file:de.micromata.mgc.jpa.hibernatesearch.bridges.TabAttrFieldBridge.java

public static void addToIndex(String prefix, Object value, Document document, LuceneOptions luceneOptions) {
    if ((value instanceof Map) == false) {
        return;//from   www  .jav  a  2  s  . c  o  m
    }
    Map rawmap = (Map) value;
    if (rawmap.isEmpty() == true) {
        return;
    }

    Set<Map.Entry> mes = rawmap.entrySet();
    for (Map.Entry me : mes) {
        if ((me.getKey() instanceof String) == false || (me.getValue() instanceof JpaTabAttrBaseDO) == false) {
            LOG.error("Bridge to incompatible type: " + me.getKey() + "=" + me.getValue());
            continue;
        }
        String key = (String) me.getKey();
        JpaTabAttrBaseDO<?, ?> attr = (JpaTabAttrBaseDO<?, ?>) me.getValue();
        String svalue = attr.getStringData();
        svalue = StringUtils.defaultString(svalue);
        Field field = new StringField(key, svalue, DEFAULT_STORE);
        document.add(field);
        field = new StringField("ALL", svalue, DEFAULT_STORE);
        document.add(field);
        field = new StringField("propertyName", key, DEFAULT_STORE);
        document.add(field);

        field = new StringField("value", svalue, DEFAULT_STORE);
        document.add(field);

    }
}

From source file:io.gravitee.common.util.EnvironmentUtils.java

public static Object get(String key, Map<String, Object> map) {
    if (map == null || map.isEmpty()) {
        return null;
    }//w w w. ja v a  2  s .  c om

    return map.get(encodedKey(key));
}

From source file:Main.java

/**
 * Creates an unmodifiable shallow copy of the given original {@link Map}. <p> While the copy returns an immutable
 * copy of the {@link Map} the content is not cloned in any way. Unless the content is immutable by itself the
 * result is not fully immutable. In the shallow copy all references are the same as in the original {@link Map}!
 * </p>/*from  w w  w.ja v a 2 s .c o m*/
 *
 * @param original The {@link Map} to copy the elements fro.
 * @param <K>      The type of the key
 * @param <V>      The type of the value
 *
 * @return Returns an immutable (unmodifiable) copy of the original {@link Map} with all the elements added but not
 * cloned!
 */
public static <K, V> Map<K, V> createUnmodifiableShallowCopy(final Map<K, V> original) {
    if (original == null || original.isEmpty()) {
        return Collections.emptyMap();
    } else {
        return Collections.unmodifiableMap(new HashMap<K, V>(original));
    }
}

From source file:Main.java

/**
 * Creates an Properties object initialized with the value from the given Map.
 * <p>//from  w ww.  ja  v a 2s  . co m
 * @param map the Map supply the keys and value for the Properties object.
 * @return a Properties object initialized with the key and value from the Map.
 * @see java.util.Map
 * @see java.util.Properties
 */
public static Properties createProperties(final Map<String, String> map) {
    Properties properties = new Properties();

    if (!(map == null || map.isEmpty())) {
        for (Entry<String, String> entry : map.entrySet()) {
            properties.setProperty(entry.getKey(), entry.getValue());
        }
    }

    return properties;
}

From source file:jp.co.opentone.bsol.framework.web.view.PagePropertyUtil.java

/**
 * page???values??.//from w  w w .j a  va 2  s  .co m
 * <p>
 * ???????????????.
 * </p>
 * @param page
 *            page
 * @param values
 *            ?
 */
public static void copyProperties(Page page, Map<String, Object> values) {
    if (values != null && !values.isEmpty()) {
        try {
            PropertyUtils.copyProperties(page, values);
        } catch (IllegalAccessException e) {
            throw new ReflectionRuntimeException(e);
        } catch (InvocationTargetException e) {
            throw new ReflectionRuntimeException(e);
        } catch (NoSuchMethodException e) {
            throw new ReflectionRuntimeException(e);
        }
    }
}

From source file:Main.java

/**
 * Returns a string composed from a {@link Map}.
 *//*from  w  w  w. j  ava2 s  .  c o m*/
public static <T> String toString(Map<T, byte[]> map) {
    if (map == null) {
        return "null";
    }
    if (map.isEmpty()) {
        return "{}";
    }
    StringBuilder buffer = new StringBuilder();
    buffer.append('{');
    Iterator<Map.Entry<T, byte[]>> it = map.entrySet().iterator();
    while (it.hasNext()) {
        Map.Entry<T, byte[]> entry = it.next();
        Object key = entry.getKey();
        buffer.append(key).append("=").append(Arrays.toString(map.get(key)));
        if (it.hasNext()) {
            buffer.append(", ");
        }
    }
    buffer.append('}');
    return buffer.toString();
}

From source file:Main.java

public static boolean isEmpty(Map<?, ?> map) {
    if (map == null) {
        return true;
    }/*  w w  w  .ja v  a 2  s.c  o m*/
    return map.isEmpty();
}

From source file:Main.java

/**
 * Returns a string composed from a {@link Map}.
 *///from w ww .  ja  v a  2  s.  co  m
static <T> String toString(Map<T, byte[]> map) {
    if (map == null) {
        return "null";
    }
    if (map.isEmpty()) {
        return "{}";
    }
    StringBuilder buffer = new StringBuilder();
    buffer.append('{');
    Iterator<Map.Entry<T, byte[]>> it = map.entrySet().iterator();
    while (it.hasNext()) {
        Map.Entry<T, byte[]> entry = it.next();
        Object key = entry.getKey();
        buffer.append(key).append("=").append(Arrays.toString(map.get(key)));
        if (it.hasNext()) {
            buffer.append(", ");
        }
    }
    buffer.append('}');
    return buffer.toString();
}