java.util.Properties.size()方法的使用及代码示例
本文整理了Java中java.util.Properties.size()方法的一些代码示例，展示了Properties.size()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。Properties.size()方法的具体详情如下：
包路径：java.util.Properties
类名称：Properties
方法名：size
Properties.size介绍
暂无
代码示例
代码示例来源：origin: spring-projects/spring-framework
/**
* Resolve the given interface mappings, turning class names into Class objects.
* @param mappings the specified interface mappings
* @return the resolved interface mappings (with Class objects as values)
*/
private Map<String, Class<?>[]> resolveInterfaceMappings(Properties mappings) {
Map<String, Class<?>[]> resolvedMappings = new HashMap<>(mappings.size());
for (Enumeration<?> en = mappings.propertyNames(); en.hasMoreElements();) {
String beanKey = (String) en.nextElement();
String[] classNames = StringUtils.commaDelimitedListToStringArray(mappings.getProperty(beanKey));
Class<?>[] classes = resolveClassNames(classNames, beanKey);
resolvedMappings.put(beanKey, classes);
}
return resolvedMappings;
}代码示例来源：origin: spring-projects/spring-framework
Assert.notNull(inlinedProperties, "'inlinedProperties' must not be null");
Map<String, Object> map = new LinkedHashMap<>();
Properties props = new Properties();
throw new IllegalStateException("Failed to load test environment property from [" + pair + "]", ex);
Assert.state(props.size() == 1, () -> "Failed to load exactly one test environment property from [" + pair + "]");
for (String name : props.stringPropertyNames()) {
map.put(name, props.getProperty(name));代码示例来源：origin: alibaba/jstorm
private static Map loadProperty(String prop) {
Map ret = new HashMap<>();
Properties properties = new Properties();
try {
InputStream stream = new FileInputStream(prop);
properties.load(stream);
if (properties.size() == 0) {
return null;
} else {
ret.putAll(properties);
}
} catch (Exception e1) {
throw new RuntimeException(e1);
}
return ret;
}代码示例来源：origin: qunarcorp/qmq
private void loadConfig() {
try {
final Properties p = new Properties();
try (Reader reader = new BufferedReader(new FileReader(file))) {
p.load(reader);
}
final Map<String, String> map = new LinkedHashMap<>(p.size());
for (String key : p.stringPropertyNames()) {
map.put(key, tryTrim(p.getProperty(key)));
}
config = Collections.unmodifiableMap(map);
} catch (IOException e) {
LOG.error("load local config failed. config: {}", file.getAbsolutePath(), e);
}
}代码示例来源：origin: apache/kafka
public static ScramCredential credentialFromString(String str) {
Properties props = toProps(str);
if (props.size() != 4 || !props.containsKey(SALT) || !props.containsKey(STORED_KEY) ||
!props.containsKey(SERVER_KEY) || !props.containsKey(ITERATIONS)) {
throw new IllegalArgumentException("Credentials not valid: " + str);
}
byte[] salt = Base64.getDecoder().decode(props.getProperty(SALT));
byte[] storedKey = Base64.getDecoder().decode(props.getProperty(STORED_KEY));
byte[] serverKey = Base64.getDecoder().decode(props.getProperty(SERVER_KEY));
int iterations = Integer.parseInt(props.getProperty(ITERATIONS));
return new ScramCredential(salt, storedKey, serverKey, iterations);
}代码示例来源：origin: apache/incubator-gobblin
public static Optional<Config> getOptionalRuntimeConfig(Properties properties) {
Properties runtimeConfigProps = new Properties();
for (Map.Entry<Object, Object> entry : properties.entrySet()) {
if (entry.getKey().toString().startsWith(ConfigurationKeys.CONFIG_RUNTIME_PREFIX)) {
runtimeConfigProps.put(entry.getKey().toString().replace(ConfigurationKeys.CONFIG_RUNTIME_PREFIX, ""),
entry.getValue().toString());
}
}
if (runtimeConfigProps.size() == 0) {
return Optional.<Config>absent();
}
Config config = ConfigUtils.propertiesToConfig(runtimeConfigProps);
return Optional.fromNullable(config);
}
}代码示例来源：origin: pentaho/pentaho-kettle
/**
* @return an array of strings, made up of all the environment variables available in the VM, format var=value. To be
* used for Runtime.exec(cmd, envp)
*/
public static final String[] getEnvironmentVariablesForRuntimeExec() {
Properties sysprops = new Properties();
sysprops.putAll( getEnv() );
sysprops.putAll( System.getProperties() );
addInternalVariables( sysprops );
String[] envp = new String[sysprops.size()];
List<Object> list = new ArrayList<Object>( sysprops.keySet() );
for ( int i = 0; i < list.size(); i++ ) {
String var = (String) list.get( i );
String val = sysprops.getProperty( var );
envp[i] = var + "=" + val;
}
return envp;
}代码示例来源：origin: checkstyle/checkstyle
/**
* Creates a new PropertiesExpander.
* @param properties the underlying properties to use for
* property resolution.
* @throws IllegalArgumentException indicates null was passed
*/
public PropertiesExpander(Properties properties) {
if (properties == null) {
throw new IllegalArgumentException("cannot pass null");
}
values = new HashMap<>(properties.size());
for (Enumeration<?> e = properties.propertyNames(); e.hasMoreElements();) {
final String name = (String) e.nextElement();
values.put(name, properties.getProperty(name));
}
}代码示例来源：origin: igniterealtime/Openfire
@Override
public void start() {
if (dataSourceName == null || dataSourceName.equals("")) {
Log.error("No name specified for DataSource. JNDI lookup will fail", new Throwable());
return;
}
try {
Properties contextProperties = new Properties();
for (String key: jndiPropertyKeys) {
String value = JiveGlobals.getXMLProperty(key);
if (value != null) {
contextProperties.setProperty(key, value);
}
}
Context context;
if (contextProperties.size() > 0) {
context = new InitialContext(contextProperties);
}
else {
context = new InitialContext();
}
dataSource = (DataSource)context.lookup(dataSourceName);
}
catch (Exception e) {
Log.error("Could not lookup DataSource at '" + dataSourceName + "'", e);
}
}代码示例来源：origin: apache/flink
@Test
public void testPropertiesToConfiguration() {
final Properties properties = new Properties();
final int entries = 10;
for (int i = 0; i < entries; i++) {
properties.setProperty("key" + i, "value" + i);
}
final Configuration configuration = ConfigurationUtils.createConfiguration(properties);
for (String key : properties.stringPropertyNames()) {
assertThat(configuration.getString(key, ""), is(equalTo(properties.getProperty(key))));
}
assertThat(configuration.toMap().size(), is(properties.size()));
}代码示例来源：origin: org.springframework/spring-context
/**
* Resolve the given interface mappings, turning class names into Class objects.
* @param mappings the specified interface mappings
* @return the resolved interface mappings (with Class objects as values)
*/
private Map<String, Class<?>[]> resolveInterfaceMappings(Properties mappings) {
Map<String, Class<?>[]> resolvedMappings = new HashMap<>(mappings.size());
for (Enumeration<?> en = mappings.propertyNames(); en.hasMoreElements();) {
String beanKey = (String) en.nextElement();
String[] classNames = StringUtils.commaDelimitedListToStringArray(mappings.getProperty(beanKey));
Class<?>[] classes = resolveClassNames(classNames, beanKey);
resolvedMappings.put(beanKey, classes);
}
return resolvedMappings;
}代码示例来源：origin: ltsopensource/light-task-scheduler
public static <T> T createPropertiesConfiguration(Class<T> clazz, String[] locations) {
if (clazz == null) {
throw new IllegalArgumentException("clazz should not be null");
}
if (!clazz.isAnnotationPresent(ConfigurationProperties.class)) {
throw new IllegalArgumentException(clazz.getName() + " must annotation with @" + ConfigurationProperties.class.getName());
}
if (locations == null || locations.length == 0) {
throw new IllegalArgumentException(clazz.getName() + " must specified the properties locations");
}
Properties properties = new Properties();
for (String location : locations) {
try {
properties.load(PropertiesConfigurationFactory.class.getClassLoader().getResourceAsStream(location.trim()));
} catch (IOException e) {
throw new IllegalStateException("Load properties [" + location + "] error", e);
}
}
Map<String, String> map = new HashMap<String, String>(properties.size());
for (Map.Entry<Object, Object> entry : properties.entrySet()) {
String key = entry.getKey().toString();
String value = entry.getValue() == null ? null : entry.getValue().toString();
if (value != null) {
map.put(key, value);
}
}
return createPropertiesConfiguration(clazz, map);
}
}代码示例来源：origin: apache/hbase
@Test
public void testMonkeyPropertiesParsing() {
final Configuration conf = new Configuration(false);
conf.set(MonkeyConstants.BATCH_RESTART_RS_RATIO, "0.85");
conf.set(MonkeyConstants.MOVE_REGIONS_MAX_TIME, "60000");
conf.set("hbase.rootdir", "/foo/bar/baz");
final Properties props = new Properties();
IntegrationTestBase testBase = new IntegrationTestDDLMasterFailover();
assertEquals(0, props.size());
testBase.loadMonkeyProperties(props, conf);
assertEquals(2, props.size());
assertEquals("0.85", props.getProperty(MonkeyConstants.BATCH_RESTART_RS_RATIO));
assertEquals("60000", props.getProperty(MonkeyConstants.MOVE_REGIONS_MAX_TIME));
}
}代码示例来源：origin: apache/shiro
/**
* Create a new JNDI initial context. Invoked by {@link #execute}.
* <p>The default implementation use this template's environment settings.
* Can be subclassed for custom contexts, e.g. for testing.
*
* @return the initial Context instance
* @throws NamingException in case of initialization errors
*/
@SuppressWarnings({"unchecked"})
protected Context createInitialContext() throws NamingException {
Properties env = getEnvironment();
Hashtable icEnv = null;
if (env != null) {
icEnv = new Hashtable(env.size());
for (Enumeration en = env.propertyNames(); en.hasMoreElements();) {
String key = (String) en.nextElement();
icEnv.put(key, env.getProperty(key));
}
}
return new InitialContext(icEnv);
}代码示例来源：origin: ltsopensource/light-task-scheduler
public static <T> T createPropertiesConfiguration(Class<T> clazz, String[] locations) {
if (clazz == null) {
throw new IllegalArgumentException("clazz should not be null");
}
if (!clazz.isAnnotationPresent(ConfigurationProperties.class)) {
throw new IllegalArgumentException(clazz.getName() + " must annotation with @" + ConfigurationProperties.class.getName());
}
if (locations == null || locations.length == 0) {
throw new IllegalArgumentException(clazz.getName() + " must specified the properties locations");
}
Properties properties = new Properties();
for (String location : locations) {
try {
properties.load(PropertiesConfigurationFactory.class.getClassLoader().getResourceAsStream(location.trim()));
} catch (IOException e) {
throw new IllegalStateException("Load properties [" + location + "] error", e);
}
}
Map<String, String> map = new HashMap<String, String>(properties.size());
for (Map.Entry<Object, Object> entry : properties.entrySet()) {
String key = entry.getKey().toString();
String value = entry.getValue() == null ? null : entry.getValue().toString();
if (value != null) {
map.put(key, value);
}
}
return createPropertiesConfiguration(clazz, map);
}
}代码示例来源：origin: checkstyle/checkstyle
final Properties cacheAfterFirstRun = new Properties();
cacheAfterFirstRun.load(Files.newBufferedReader(cacheFile.toPath()));
final Properties cacheAfterSecondRun = new Properties();
cacheAfterSecondRun.load(Files.newBufferedReader(cacheFile.toPath()));
cacheAfterFirstRun.getProperty(pathToEmptyFile),
cacheAfterSecondRun.getProperty(pathToEmptyFile)
);
assertEquals(
"Cache has changed its hash",
cacheAfterFirstRun.getProperty(PropertyCacheFile.CONFIG_HASH_KEY),
cacheAfterSecondRun.getProperty(PropertyCacheFile.CONFIG_HASH_KEY)
);
final int expectedNumberOfObjectsInCache = 2;
assertEquals("Number of items in cache differs from expected",
expectedNumberOfObjectsInCache, cacheAfterFirstRun.size());
assertEquals("Number of items in cache differs from expected",
expectedNumberOfObjectsInCache, cacheAfterSecondRun.size());代码示例来源：origin: apache/incubator-gobblin
@Override
public void write(DataOutput out)
throws IOException {
out.writeInt(this.commonProperties.size() + this.specProperties.size());
for (Object key : this.commonProperties.keySet()) {
TextSerializer.writeStringAsText(out, (String) key);
TextSerializer.writeStringAsText(out, this.commonProperties.getProperty((String) key));
}
for (Object key : this.specProperties.keySet()) {
TextSerializer.writeStringAsText(out, (String) key);
TextSerializer.writeStringAsText(out, this.specProperties.getProperty((String) key));
}
}代码示例来源：origin: alibaba/druid
@SuppressWarnings("rawtypes")
public void setConnectProperties(Properties properties) {
if (properties == null) {
properties = new Properties();
if (properties.size() == this.connectProperties.size()) {
equals = true;
for (Map.Entry entry : properties.entrySet()) {代码示例来源：origin: spring-projects/spring-batch
@Test
public void testGetRestartJobParametersWithDefaults() {
JsrJobOperator jobOperator = (JsrJobOperator) jsrJobOperator;
JobExecution jobExecution = new JobExecution(1L,
new JobParametersBuilder().addString("prevKey1", "prevVal1").addString("prevKey2", "prevVal2").toJobParameters());
Properties defaultProperties = new Properties();
defaultProperties.setProperty("prevKey2", "not value 2");
Properties userProperties = new Properties(defaultProperties);
Properties properties = jobOperator.getJobRestartProperties(userProperties, jobExecution);
assertTrue(properties.size() == 2);
assertTrue(properties.getProperty("prevKey1").equals("prevVal1"));
assertTrue("prevKey2 = " + properties.getProperty("prevKey2"), properties.getProperty("prevKey2").equals("not value 2"));
}代码示例来源：origin: robolectric/robolectric
public static Config fromProperties(Properties properties) {
if (properties == null || properties.size() == 0) return null;
return new Implementation(
parseSdkArrayProperty(properties.getProperty("sdk", "")),
parseSdkInt(properties.getProperty("minSdk", "-1")),
parseSdkInt(properties.getProperty("maxSdk", "-1")),
properties.getProperty("manifest", DEFAULT_VALUE_STRING),
properties.getProperty("qualifiers", DEFAULT_QUALIFIERS),
properties.getProperty("packageName", DEFAULT_PACKAGE_NAME),
properties.getProperty("resourceDir", DEFAULT_RES_FOLDER),
properties.getProperty("assetDir", DEFAULT_ASSET_FOLDER),
parseClasses(properties.getProperty("shadows", "")),
parseStringArrayProperty(properties.getProperty("instrumentedPackages", "")),
parseApplication(
properties.getProperty("application", DEFAULT_APPLICATION.getCanonicalName())),
parseStringArrayProperty(properties.getProperty("libraries", "")));
}内容来源于网络，如有侵权，请联系作者删除！
