Java Utililty Methods Dictionary Usage

void addReferenceIdsToServiceProperties(String prefix, Map referenceProps, Dictionary serviceProps)
add Reference Ids To Service Properties

Object serviceId = referenceProps.get("service.id");
if (serviceId != null) {
 serviceProps.put(prefix + ".service.id", serviceId);
Object servicedPid = referenceProps.get("service.pid");
if (servicedPid != null) {
 serviceProps.put(prefix + ".service.pid", servicedPid);

boolean containsKey(Dictionary dict, String key)
contains Key

if (dict == null || key == null) {
 return false;
return dict.get(key) != null;

Boolean getBoolean(Dictionary p, Object key, Boolean defaultValue)
get Boolean

Object value = p.get(key);
if (value == null)
 return defaultValue;
if (value instanceof Boolean)
 return (Boolean) value;
String s = value.toString().toLowerCase().trim();
if (s.equals("true") || s.equals("yes"))
 return new Boolean(true);
...

String getSpringContextHeader(Dictionary headers)
Return the #SPRING_CONTEXT_HEADER if present from the given dictionary.

Object header = null;
if (headers != null)
 header = headers.get(SPRING_CONTEXT_HEADER);
return (header != null ? header.toString().trim() : null);

Boolean getState(Dictionary conf, String property)
Getter for the state of a boolean type property.

Object value = conf.get(property);
if (value instanceof String) {
 String strVal = ((String) value).trim();
 if ("0".equals(strVal)) {
 return false;
 } else if ("1".equals(strVal)) {
 return true;
 } else {
...

String getString(Dictionary p, Object key, String defaultValue)
get String

Object value = p.get(key);
if (value == null)
 return defaultValue;
else
 return value.toString();

boolean isNullOrNothing(final Object[] array)
is Null Or Nothing

return array == null || array.length == 0;

void parseRequestOption(Dictionary conf, String confParam, Map requestOptions)
Parses a request option from the configuration parameters.

Boolean state = getState(conf, confParam);
if (state != null) {
 String reqParam = confParam.substring(3); 
 requestOptions.put(reqParam, state);

void setDefault(Dictionary dict, String key, String value)
Puts the given key-value pair in the given dictionary if the key does not already exist in it or if its existing value is null.

if (dict.get(key) == null) {
 dict.put(key, value);

void setProperty(Dictionary properties, String key, String value)
set Property

if (value != null) {
 properties.put(key, value);