下面列出了怎么用org.apache.http.message.BasicHeaderElementIterator的API类实例代码及写法，或者点击链接到github查看源代码。
@Bean
public ConnectionKeepAliveStrategy connectionKeepAliveStrategy() {
return (httpResponse, httpContext) -> {
HeaderIterator headerIterator = httpResponse.headerIterator(HTTP.CONN_KEEP_ALIVE);
HeaderElementIterator elementIterator = new BasicHeaderElementIterator(headerIterator);
while (elementIterator.hasNext()) {
HeaderElement element = elementIterator.nextElement();
String param = element.getName();
String value = element.getValue();
if (value != null && param.equalsIgnoreCase("timeout")) {
return Long.parseLong(value) * 1000; // convert to ms
}
}
return DEFAULT_KEEP_ALIVE_TIME;
};
}
@Bean
public ConnectionKeepAliveStrategy connectionKeepAliveStrategy() {
return new ConnectionKeepAliveStrategy() {
@Override
public long getKeepAliveDuration(HttpResponse response, HttpContext context) {
HeaderElementIterator it = new BasicHeaderElementIterator(
response.headerIterator(HTTP.CONN_KEEP_ALIVE));
while (it.hasNext()) {
HeaderElement he = it.nextElement();
String param = he.getName();
String value = he.getValue();
if (value != null && param.equalsIgnoreCase("timeout")) {
return Long.parseLong(value) * 1000;
}
}
return httpClientProperties.getDefaultKeepAliveTimeMillis();
}
};
}
@Bean
public ConnectionKeepAliveStrategy connectionKeepAliveStrategy() {
return new ConnectionKeepAliveStrategy() {
@Override
public long getKeepAliveDuration(HttpResponse response, HttpContext httpContext) {
HeaderElementIterator it = new BasicHeaderElementIterator
(response.headerIterator(HTTP.CONN_KEEP_ALIVE));
while (it.hasNext()) {
HeaderElement he = it.nextElement();
String param = he.getName();
String value = he.getValue();
if (value != null && param.equalsIgnoreCase("timeout")) {
return Long.parseLong(value) * 1000;
}
}
return p.getDefaultKeepAliveTimeMillis();
}
};
}
/**
* 实例化连接池，设置连接池管理器。
* 这里需要以参数形式注入上面实例化的连接池管理器
*
* @return
*/
@Override
public long getKeepAliveDuration(HttpResponse httpResponse, HttpContext httpContext) {
HeaderElementIterator it = new BasicHeaderElementIterator(httpResponse.headerIterator(HTTP.CONN_KEEP_ALIVE));
while (it.hasNext()) {
HeaderElement he = it.nextElement();
String param = he.getName();
String value = he.getValue();
if (value != null && param.equalsIgnoreCase("timeout")) {
try {
return Long.parseLong(value) * 1000;
} catch (NumberFormatException ignore) {
}
}
}
return 5 * 1000;
}
@Override
public long getKeepAliveDuration(HttpResponse response, HttpContext context) {
HeaderElementIterator it = new BasicHeaderElementIterator(response.headerIterator(HTTP.CONN_KEEP_ALIVE));
while (it.hasNext()) {
HeaderElement he = it.nextElement();
String param = he.getName();
String value = he.getValue();
if (value != null && param.equalsIgnoreCase("timeout")) {
long timeout = Long.parseLong(value) * 1000;
if (timeout > 20 * 1000) {
return 20 * 1000;
} else {
return timeout;
}
}
}
return 5 * 1000;
}
private ConnectionKeepAliveStrategy createKeepAliveStrategy() {
return new ConnectionKeepAliveStrategy() {
@Override
public long getKeepAliveDuration(HttpResponse httpResponse, HttpContext httpContext) {
// in case of errors keep-alive not always works. close connection just in case
if (httpResponse.getStatusLine().getStatusCode() != HttpURLConnection.HTTP_OK) {
return -1;
}
HeaderElementIterator it = new BasicHeaderElementIterator(
httpResponse.headerIterator(HTTP.CONN_DIRECTIVE));
while (it.hasNext()) {
HeaderElement he = it.nextElement();
String param = he.getName();
//String value = he.getValue();
if (param != null && param.equalsIgnoreCase(HTTP.CONN_KEEP_ALIVE)) {
return properties.getKeepAliveTimeout();
}
}
return -1;
}
};
}
@Override
public long getKeepAliveDuration(final HttpResponse response, final HttpContext context) {
// Honor 'keep-alive' header
final HeaderElementIterator it = new BasicHeaderElementIterator(
response.headerIterator(HTTP.CONN_KEEP_ALIVE));
while (it.hasNext()) {
final HeaderElement he = it.nextElement();
final String param = he.getName();
final String value = he.getValue();
if (value != null && param.equalsIgnoreCase("timeout")) {
try {
return Long.parseLong(value) * 1000;
} catch (NumberFormatException ignore) {
// Do nothing
}
}
}
// otherwise keep alive for 30 seconds
return 30 * 1000;
}
public long getKeepAliveDuration(HttpResponse response, HttpContext context) {
if (response == null) {
throw new IllegalArgumentException("HTTP response may not be null");
}
HeaderElementIterator it = new BasicHeaderElementIterator(response.headerIterator(HTTP.CONN_KEEP_ALIVE));
while (it.hasNext()) {
HeaderElement he = it.nextElement();
String param = he.getName();
String value = he.getValue();
if (value != null && param.equalsIgnoreCase("timeout")) {
try {
return Long.parseLong(value) * 1000;
} catch (NumberFormatException ignore) {
}
}
}
return DEFAULT_KEEP_ALIVE_DURATION;
}
@Override
public long getKeepAliveDuration(HttpResponse httpResponse, HttpContext httpContext) {
HeaderElementIterator headerElementIterator = new BasicHeaderElementIterator(
httpResponse.headerIterator(HTTP.CONN_KEEP_ALIVE));
while (headerElementIterator.hasNext()) {
HeaderElement headerElement = headerElementIterator.nextElement();
String name = headerElement.getName();
String value = headerElement.getValue();
if (value != null && name.equalsIgnoreCase("timeout")) {
return Long.parseLong(value) * 1000;
}
}
// Set own keep alive duration if server does not have it
return appConfiguration.getRptConnectionPoolCustomKeepAliveTimeout() * 1000;
}
/**
* @return The connection keep alive strategy.
*/
private ConnectionKeepAliveStrategy getKeepAliveStrategy() {
return (response, context) -> {
// Honor 'keep-alive' header
HeaderElementIterator it = new BasicHeaderElementIterator(response.headerIterator(HTTP.CONN_KEEP_ALIVE));
while (it.hasNext()) {
HeaderElement he = it.nextElement();
String param = he.getName();
String value = he.getValue();
if (value != null && "timeout".equalsIgnoreCase(param)) {
try {
return Long.parseLong(value) * 1000;
} catch (NumberFormatException ignore) {
// let's move on the next header value
break;
}
}
}
// otherwise use the default value
return defaultKeepAlive * 1000;
};
}
@Override
public long getKeepAliveDuration(HttpResponse response, HttpContext context) {
HeaderElementIterator it = new BasicHeaderElementIterator(
response.headerIterator(HTTP.CONN_KEEP_ALIVE));
while (it.hasNext()) {
HeaderElement he = it.nextElement();
String param = he.getName();
String value = he.getValue();
if (value != null && param.equalsIgnoreCase("timeout")) {
try {
return Long.parseLong(value) * 1000;
} catch (NumberFormatException ignore) {
}
}
}
return keepAliveTimeOut * 1000;
}
@Override
public long getKeepAliveDuration(HttpResponse response, HttpContext context) {
HeaderElementIterator it = new BasicHeaderElementIterator(
response.headerIterator(HTTP.CONN_KEEP_ALIVE));
while (it.hasNext()) {
HeaderElement he = it.nextElement();
String param = he.getName();
String value = he.getValue();
if (value != null && param.equalsIgnoreCase("timeout")) {
try {
return Long.parseLong(value) * 1000;
} catch (NumberFormatException ignore) {
}
}
}
return keepAliveTimeOut * 1000;
}
@Override
public long getKeepAliveDuration(HttpResponse response, HttpContext context) {
HeaderElementIterator it = new BasicHeaderElementIterator
(response.headerIterator(HTTP.CONN_KEEP_ALIVE));
while (it.hasNext()) {
HeaderElement he = it.nextElement();
String param = he.getName();
String value = he.getValue();
if (value != null && param.equalsIgnoreCase
("timeout")) {
return Long.parseLong(value) * 1000;
}
}
return 3 * 60 * 1000;//如果没有约定，则默认定义时长为3分钟
}
public static ConnectionKeepAliveStrategy create(long keepTimeMill) {
if (keepTimeMill < 0)
throw new IllegalArgumentException("apache_httpclient连接持久时间不能小于0");
return new ConnectionKeepAliveStrategy() {
public long getKeepAliveDuration(HttpResponse response, HttpContext context) {
// Honor 'keep-alive' header
HeaderElementIterator it = new BasicHeaderElementIterator(
response.headerIterator(HTTP.CONN_KEEP_ALIVE));
while (it.hasNext()) {
HeaderElement he = it.nextElement();
String param = he.getName();
String value = he.getValue();
if (value != null && param.equalsIgnoreCase("timeout")) {
try {
return Long.parseLong(value) * 1000;
} catch (NumberFormatException ignore) {
}
}
}
return keepTimeMill;
}
};
}
@Override
public long getKeepAliveDuration(HttpResponse response, HttpContext context) {
HeaderElementIterator it = new BasicHeaderElementIterator
(response.headerIterator(HTTP.CONN_KEEP_ALIVE));
while (it.hasNext()) {
HeaderElement he = it.nextElement();
String param = he.getName();
String value = he.getValue();
if (value != null && param.equalsIgnoreCase
("timeout")) {
return Long.parseLong(value) * 1000;
}
}
return 3 * 60 * 1000;//如果没有约定，则默认定义时长为3分钟
}
@Override
public long getKeepAliveDuration(HttpResponse response, HttpContext context) {
HeaderElementIterator it = new BasicHeaderElementIterator
(response.headerIterator(HTTP.CONN_KEEP_ALIVE));
while (it.hasNext()) {
HeaderElement he = it.nextElement();
String param = he.getName();
String value = he.getValue();
if (value != null && param.equalsIgnoreCase
("timeout")) {
return Long.parseLong(value) * 1000;
}
}
return 3 * 60 * 1000;//如果没有约定，则默认定义时长为3分钟
}
@Override
public long getKeepAliveDuration(HttpResponse response, HttpContext context) {
HeaderElementIterator it = new BasicHeaderElementIterator(response.headerIterator(HTTP.CONN_KEEP_ALIVE));
while (it.hasNext()) {
HeaderElement he = it.nextElement();
String param = he.getName();
String value = he.getValue();
if (value != null && param.equalsIgnoreCase(KEEP_ALIVE_TIMEOUT_PARAM_NAME)) {
return Long.parseLong(value) * 1000;
}
}
return DEFAULT_KEEP_ALIVE_TIMEOUT_MS;
}
private long getKeepAliveDuration(final HttpResponse response) {
final HeaderElementIterator it = new BasicHeaderElementIterator(response.headerIterator(HTTP.CONN_KEEP_ALIVE));
while (it.hasNext()) {
final HeaderElement he = it.nextElement();
final String param = he.getName();
final String value = he.getValue();
if (value != null && "timeout".equalsIgnoreCase(param)) {
try {
return Long.parseLong(value) * 1000L;
} catch (final NumberFormatException ignore) {
}
}
}
return 30L * 1000L;
}
@Test
// @Ignore
// 5.1
public final void whenCustomizingKeepAliveStrategy_thenNoExceptions() throws ClientProtocolException, IOException {
final ConnectionKeepAliveStrategy myStrategy = new ConnectionKeepAliveStrategy() {
@Override
public long getKeepAliveDuration(final HttpResponse myResponse, final HttpContext myContext) {
final HeaderElementIterator it = new BasicHeaderElementIterator(myResponse.headerIterator(HTTP.CONN_KEEP_ALIVE));
while (it.hasNext()) {
final HeaderElement he = it.nextElement();
final String param = he.getName();
final String value = he.getValue();
if ((value != null) && param.equalsIgnoreCase("timeout")) {
return Long.parseLong(value) * 1000;
}
}
final HttpHost target = (HttpHost) myContext.getAttribute(HttpCoreContext.HTTP_TARGET_HOST);
if ("localhost".equalsIgnoreCase(target.getHostName())) {
return 10 * 1000;
} else {
return 5 * 1000;
}
}
};
client = HttpClients.custom().setKeepAliveStrategy(myStrategy).setConnectionManager(poolingConnManager).build();
client.execute(get1);
client.execute(get2);
}
@Override
protected <T> T doRefer(Class<T> serviceType, URL url) throws RpcException {
if (connectionMonitor == null) {
connectionMonitor = new ConnectionMonitor();
}
// TODO more configs to add
PoolingHttpClientConnectionManager connectionManager = new PoolingHttpClientConnectionManager();
// 20 is the default maxTotal of current PoolingClientConnectionManager 20是当前池化clientconnectionmanager的默认最大值
connectionManager.setMaxTotal(url.getParameter(Constants.CONNECTIONS_KEY, 20));
connectionManager.setDefaultMaxPerRoute(url.getParameter(Constants.CONNECTIONS_KEY, 20));
connectionMonitor.addConnectionManager(connectionManager);
RequestConfig requestConfig = RequestConfig.custom()
.setConnectTimeout(url.getParameter(Constants.CONNECT_TIMEOUT_KEY, Constants.DEFAULT_CONNECT_TIMEOUT))
.setSocketTimeout(url.getParameter(Constants.TIMEOUT_KEY, Constants.DEFAULT_TIMEOUT))
.build();
SocketConfig socketConfig = SocketConfig.custom()
.setSoKeepAlive(true)
.setTcpNoDelay(true)
.build();
CloseableHttpClient httpClient = HttpClientBuilder.create()
.setKeepAliveStrategy(new ConnectionKeepAliveStrategy() {
@Override
public long getKeepAliveDuration(HttpResponse response, HttpContext context) {
HeaderElementIterator it = new BasicHeaderElementIterator(response.headerIterator(HTTP.CONN_KEEP_ALIVE));
while (it.hasNext()) {
HeaderElement he = it.nextElement();
String param = he.getName();
String value = he.getValue();
if (value != null && param.equalsIgnoreCase("timeout")) {
return Long.parseLong(value) * 1000;
}
}
// TODO constant
return 30 * 1000;
}
})
.setDefaultRequestConfig(requestConfig)
.setDefaultSocketConfig(socketConfig)
.build();
ApacheHttpClient4Engine engine = new ApacheHttpClient4Engine(httpClient/*, localContext*/);
ResteasyClient client = new ResteasyClientBuilder().httpEngine(engine).build();
clients.add(client);
client.register(RpcContextFilter.class);
for (String clazz : Constants.COMMA_SPLIT_PATTERN.split(url.getParameter(Constants.EXTENSION_KEY, ""))) {
if (!StringUtils.isEmpty(clazz)) {
try {
client.register(Thread.currentThread().getContextClassLoader().loadClass(clazz.trim()));
} catch (ClassNotFoundException e) {
throw new RpcException("Error loading JAX-RS extension class: " + clazz.trim(), e);
}
}
}
// TODO protocol
ResteasyWebTarget target = client.target("http://" + url.getHost() + ":" + url.getPort() + "/" + getContextPath(url));
return target.proxy(serviceType);
}
@PostConstruct
public void init() {
poolingHttpClientConnectionManager = new PoolingHttpClientConnectionManager();
poolingHttpClientConnectionManager.setMaxTotal(maxTotalConnections);
poolingHttpClientConnectionManager
.setDefaultMaxPerRoute(this.maxConnectionsPerRoute);
ConnectionKeepAliveStrategy myStrategy = new ConnectionKeepAliveStrategy() {
public long getKeepAliveDuration(HttpResponse response,
HttpContext context) {
HeaderElementIterator it = new BasicHeaderElementIterator(
response.headerIterator(HTTP.CONN_KEEP_ALIVE));
while (it.hasNext()) {
HeaderElement he = it.nextElement();
String param = he.getName();
String value = he.getValue();
if (value != null && param.equalsIgnoreCase("timeout")) {
try {
return Long.parseLong(value) * 1000;
} catch (NumberFormatException ignore) {
}
}
}
return keepAliveDurationMilliseconds;
}
};
RequestConfig.Builder requestConfigBuilder = RequestConfig.custom();
if (isProxyNeeded) {
requestConfigBuilder.setProxy(new HttpHost(proxyHost, proxyPort));
}
RequestConfig requestConfig = requestConfigBuilder
.setConnectionRequestTimeout(this.connReqTimeoutMilliseconds)
.setConnectTimeout(connTimeoutMilliseconds)
.setSocketTimeout(this.socketTimeoutMilliseconds)
.setStaleConnectionCheckEnabled(false)
.setRedirectsEnabled(true).setMaxRedirects(maxRedirects)
.build();
HttpClientBuilder builder = HttpClientBuilder.create()
.setDefaultRequestConfig(requestConfig);
httpClient = builder
.setConnectionManager(poolingHttpClientConnectionManager)
.setKeepAliveStrategy(myStrategy).build();
if (reapInterval > 0 && idleConnectionsTimeout > 0) {
LOGGER.debug(String
.format("Initializing idle connection monitor thread with reap interval %s ms and idle connection time out %s ms",
reapInterval, idleConnectionsTimeout));
idcm = new IdleConnectionMonitorThread(
poolingHttpClientConnectionManager, reapInterval,
idleConnectionsTimeout);
idcm.start();
}
}
protected <T> T doRefer(Class<T> serviceType, URL url) throws RpcException {
if (connectionMonitor == null) {
connectionMonitor = new ConnectionMonitor();
}
// TODO more configs to add
PoolingClientConnectionManager connectionManager = new PoolingClientConnectionManager();
// 20 is the default maxTotal of current PoolingClientConnectionManager
connectionManager.setMaxTotal(url.getParameter(Constants.CONNECTIONS_KEY, 20));
connectionManager.setDefaultMaxPerRoute(url.getParameter(Constants.CONNECTIONS_KEY, 20));
connectionMonitor.addConnectionManager(connectionManager);
// BasicHttpContext localContext = new BasicHttpContext();
DefaultHttpClient httpClient = new DefaultHttpClient(connectionManager);
httpClient.setKeepAliveStrategy(new ConnectionKeepAliveStrategy() {
public long getKeepAliveDuration(HttpResponse response, HttpContext context) {
HeaderElementIterator it = new BasicHeaderElementIterator(response.headerIterator(HTTP.CONN_KEEP_ALIVE));
while (it.hasNext()) {
HeaderElement he = it.nextElement();
String param = he.getName();
String value = he.getValue();
if (value != null && param.equalsIgnoreCase("timeout")) {
return Long.parseLong(value) * 1000;
}
}
// TODO constant
return 30 * 1000;
}
});
HttpParams params = httpClient.getParams();
// TODO currently no xml config for Constants.CONNECT_TIMEOUT_KEY so we directly reuse Constants.TIMEOUT_KEY for now
HttpConnectionParams.setConnectionTimeout(params, url.getParameter(Constants.TIMEOUT_KEY, Constants.DEFAULT_TIMEOUT));
HttpConnectionParams.setSoTimeout(params, url.getParameter(Constants.TIMEOUT_KEY, Constants.DEFAULT_TIMEOUT));
HttpConnectionParams.setTcpNoDelay(params, true);
HttpConnectionParams.setSoKeepalive(params, true);
ApacheHttpClient4Engine engine = new ApacheHttpClient4Engine(httpClient/*, localContext*/);
ResteasyClient client = new ResteasyClientBuilder().httpEngine(engine).build();
clients.add(client);
client.register(RpcContextFilter.class);
for (String clazz : Constants.COMMA_SPLIT_PATTERN.split(url.getParameter(Constants.EXTENSION_KEY, ""))) {
if (!StringUtils.isEmpty(clazz)) {
try {
client.register(Thread.currentThread().getContextClassLoader().loadClass(clazz.trim()));
} catch (ClassNotFoundException e) {
throw new RpcException("Error loading JAX-RS extension class: " + clazz.trim(), e);
}
}
}
// TODO protocol
ResteasyWebTarget target = client.target("http://" + url.getHost() + ":" + url.getPort() + "/" + getContextPath(url));
return target.proxy(serviceType);
}
protected <T> T doRefer(Class<T> serviceType, URL url) throws RpcException {
if (connectionMonitor == null) {
connectionMonitor = new ConnectionMonitor();
}
// TODO more configs to add
PoolingClientConnectionManager connectionManager = new PoolingClientConnectionManager();
// 20 is the default maxTotal of current PoolingClientConnectionManager
connectionManager.setMaxTotal(url.getParameter(Constants.CONNECTIONS_KEY, 20));
connectionManager.setDefaultMaxPerRoute(url.getParameter(Constants.CONNECTIONS_KEY, 20));
connectionMonitor.addConnectionManager(connectionManager);
// BasicHttpContext localContext = new BasicHttpContext();
DefaultHttpClient httpClient = new DefaultHttpClient(connectionManager);
httpClient.setKeepAliveStrategy(new ConnectionKeepAliveStrategy() {
public long getKeepAliveDuration(HttpResponse response, HttpContext context) {
HeaderElementIterator it = new BasicHeaderElementIterator(response.headerIterator(HTTP.CONN_KEEP_ALIVE));
while (it.hasNext()) {
HeaderElement he = it.nextElement();
String param = he.getName();
String value = he.getValue();
if (value != null && param.equalsIgnoreCase("timeout")) {
return Long.parseLong(value) * 1000;
}
}
// TODO constant
return 30 * 1000;
}
});
HttpParams params = httpClient.getParams();
// TODO currently no xml config for Constants.CONNECT_TIMEOUT_KEY so we directly reuse Constants.TIMEOUT_KEY for now
HttpConnectionParams.setConnectionTimeout(params, url.getParameter(Constants.TIMEOUT_KEY, Constants.DEFAULT_TIMEOUT));
HttpConnectionParams.setSoTimeout(params, url.getParameter(Constants.TIMEOUT_KEY, Constants.DEFAULT_TIMEOUT));
HttpConnectionParams.setTcpNoDelay(params, true);
HttpConnectionParams.setSoKeepalive(params, true);
ApacheHttpClient4Engine engine = new ApacheHttpClient4Engine(httpClient/*, localContext*/);
ResteasyClient client = new ResteasyClientBuilder().httpEngine(engine).build();
clients.add(client);
client.register(RpcContextFilter.class);
for (String clazz : Constants.COMMA_SPLIT_PATTERN.split(url.getParameter(Constants.EXTENSION_KEY, ""))) {
if (!StringUtils.isEmpty(clazz)) {
try {
client.register(Thread.currentThread().getContextClassLoader().loadClass(clazz.trim()));
} catch (ClassNotFoundException e) {
throw new RpcException("Error loading JAX-RS extension class: " + clazz.trim(), e);
}
}
}
// TODO protocol
ResteasyWebTarget target = client.target("http://" + url.getHost() + ":" + url.getPort() + "/" + getContextPath(url));
return target.proxy(serviceType);
}
protected <T> T doRefer(Class<T> serviceType, URL url) throws RpcException {
if (connectionMonitor == null) {
connectionMonitor = new ConnectionMonitor();
}
// TODO more configs to add
PoolingClientConnectionManager connectionManager = new PoolingClientConnectionManager();
// 20 is the default maxTotal of current PoolingClientConnectionManager
connectionManager.setMaxTotal(url.getParameter(Constants.CONNECTIONS_KEY, 20));
connectionManager.setDefaultMaxPerRoute(url.getParameter(Constants.CONNECTIONS_KEY, 20));
connectionMonitor.addConnectionManager(connectionManager);
// BasicHttpContext localContext = new BasicHttpContext();
DefaultHttpClient httpClient = new DefaultHttpClient(connectionManager);
httpClient.setKeepAliveStrategy(new ConnectionKeepAliveStrategy() {
public long getKeepAliveDuration(HttpResponse response, HttpContext context) {
HeaderElementIterator it = new BasicHeaderElementIterator(response.headerIterator(HTTP.CONN_KEEP_ALIVE));
while (it.hasNext()) {
HeaderElement he = it.nextElement();
String param = he.getName();
String value = he.getValue();
if (value != null && param.equalsIgnoreCase("timeout")) {
return Long.parseLong(value) * 1000;
}
}
// TODO constant
return 30 * 1000;
}
});
HttpParams params = httpClient.getParams();
// TODO currently no xml config for Constants.CONNECT_TIMEOUT_KEY so we directly reuse Constants.TIMEOUT_KEY for now
HttpConnectionParams.setConnectionTimeout(params, url.getParameter(Constants.TIMEOUT_KEY, Constants.DEFAULT_TIMEOUT));
HttpConnectionParams.setSoTimeout(params, url.getParameter(Constants.TIMEOUT_KEY, Constants.DEFAULT_TIMEOUT));
HttpConnectionParams.setTcpNoDelay(params, true);
HttpConnectionParams.setSoKeepalive(params, true);
ApacheHttpClient4Engine engine = new ApacheHttpClient4Engine(httpClient/*, localContext*/);
ResteasyClient client = new ResteasyClientBuilder().httpEngine(engine).build();
clients.add(client);
client.register(RpcContextFilter.class);
for (String clazz : Constants.COMMA_SPLIT_PATTERN.split(url.getParameter(Constants.EXTENSION_KEY, ""))) {
if (!StringUtils.isEmpty(clazz)) {
try {
client.register(Thread.currentThread().getContextClassLoader().loadClass(clazz.trim()));
} catch (ClassNotFoundException e) {
throw new RpcException("Error loading JAX-RS extension class: " + clazz.trim(), e);
}
}
}
// TODO protocol
ResteasyWebTarget target = client.target("http://" + url.getHost() + ":" + url.getPort() + "/" + getContextPath(url));
return target.proxy(serviceType);
}
protected <T> T doRefer(Class<T> serviceType, URL url) throws RpcException {
if (connectionMonitor == null) {
connectionMonitor = new ConnectionMonitor();
}
// TODO more configs to add
PoolingClientConnectionManager connectionManager = new PoolingClientConnectionManager();
// 20 is the default maxTotal of current PoolingClientConnectionManager
connectionManager.setMaxTotal(url.getParameter(Constants.CONNECTIONS_KEY, 20));
connectionManager.setDefaultMaxPerRoute(url.getParameter(Constants.CONNECTIONS_KEY, 20));
connectionMonitor.addConnectionManager(connectionManager);
// BasicHttpContext localContext = new BasicHttpContext();
DefaultHttpClient httpClient = new DefaultHttpClient(connectionManager);
httpClient.setKeepAliveStrategy(new ConnectionKeepAliveStrategy() {
public long getKeepAliveDuration(HttpResponse response, HttpContext context) {
HeaderElementIterator it = new BasicHeaderElementIterator(response.headerIterator(HTTP.CONN_KEEP_ALIVE));
while (it.hasNext()) {
HeaderElement he = it.nextElement();
String param = he.getName();
String value = he.getValue();
if (value != null && param.equalsIgnoreCase("timeout")) {
return Long.parseLong(value) * 1000;
}
}
// TODO constant
return 30 * 1000;
}
});
HttpParams params = httpClient.getParams();
// TODO currently no xml config for Constants.CONNECT_TIMEOUT_KEY so we directly reuse Constants.TIMEOUT_KEY for now
HttpConnectionParams.setConnectionTimeout(params, url.getParameter(Constants.TIMEOUT_KEY, Constants.DEFAULT_TIMEOUT));
HttpConnectionParams.setSoTimeout(params, url.getParameter(Constants.TIMEOUT_KEY, Constants.DEFAULT_TIMEOUT));
HttpConnectionParams.setTcpNoDelay(params, true);
HttpConnectionParams.setSoKeepalive(params, true);
ApacheHttpClient4Engine engine = new ApacheHttpClient4Engine(httpClient/*, localContext*/);
ResteasyClient client = new ResteasyClientBuilder().httpEngine(engine).build();
clients.add(client);
client.register(RpcContextFilter.class);
for (String clazz : Constants.COMMA_SPLIT_PATTERN.split(url.getParameter(Constants.EXTENSION_KEY, ""))) {
if (!StringUtils.isEmpty(clazz)) {
try {
client.register(Thread.currentThread().getContextClassLoader().loadClass(clazz.trim()));
} catch (ClassNotFoundException e) {
throw new RpcException("Error loading JAX-RS extension class: " + clazz.trim(), e);
}
}
}
// TODO protocol
ResteasyWebTarget target = client.target("http://" + url.getHost() + ":" + url.getPort() + "/" + getContextPath(url));
return target.proxy(serviceType);
}