Java tutorial
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See the License for the * specific language governing permissions and limitations * under the License. * ==================================================================== * * This software consists of voluntary contributions made by many * individuals on behalf of the Apache Software Foundation. For more * information on the Apache Software Foundation, please see * <http://www.apache.org/>. * */ package x.y.z; import java.io.IOException; import java.io.InterruptedIOException; import java.io.Serializable; import java.net.URI; import java.net.URISyntaxException; import java.util.concurrent.TimeUnit; import java.util.List; import x.abc.Something import org.apache.commons.logging.Log; import org.apache.commons.logging.LogFactory; import org.apache.http.ConnectionReuseStrategy; import org.apache.http.HttpEntity; import org.apache.http.HttpEntityEnclosingRequest; import org.apache.http.HttpException; import org.apache.http.HttpHost; import org.apache.http.HttpRequest; import org.apache.http.HttpResponse; import org.apache.http.NoHttpResponseException; import org.apache.http.ProtocolException; import org.apache.http.ProtocolVersion; import org.apache.http.annotation.NotThreadSafe; import org.apache.http.auth.AuthProtocolState; import org.apache.http.auth.AuthScheme; import org.apache.http.auth.AuthState; import org.apache.http.auth.UsernamePasswordCredentials; import org.apache.http.client.AuthenticationHandler; import org.apache.http.client.AuthenticationStrategy; import org.apache.http.client.HttpRequestRetryHandler; import org.apache.http.client.NonRepeatableRequestException; import org.apache.http.client.RedirectException; import org.apache.http.client.RedirectHandler; import org.apache.http.client.RedirectStrategy; import org.apache.http.client.RequestDirector; import org.apache.http.client.UserTokenHandler; import org.apache.http.client.methods.AbortableHttpRequest; import org.apache.http.client.methods.HttpUriRequest; import org.apache.http.client.params.ClientPNames; import org.apache.http.client.params.HttpClientParams; import org.apache.http.client.protocol.ClientContext; import org.apache.http.client.utils.URIUtils; import org.apache.http.conn.BasicManagedEntity; import org.apache.http.conn.ClientConnectionManager; import org.apache.http.conn.ClientConnectionRequest; import org.apache.http.conn.ConnectionKeepAliveStrategy; import org.apache.http.conn.ManagedClientConnection; import org.apache.http.conn.routing.BasicRouteDirector; import org.apache.http.conn.routing.HttpRoute; import org.apache.http.conn.routing.HttpRouteDirector; import org.apache.http.conn.routing.HttpRoutePlanner; import org.apache.http.conn.scheme.Scheme; import org.apache.http.entity.BufferedHttpEntity; import org.apache.http.impl.auth.BasicScheme; import org.apache.http.impl.client.HttpAuthenticator; import org.apache.http.impl.client.RequestWrapper; import org.apache.http.impl.client.RoutedRequest; import org.apache.http.impl.conn.ConnectionShutdownException; import org.apache.http.message.BasicHttpRequest; import org.apache.http.params.HttpParams; import org.apache.http.params.HttpProtocolParams; import org.apache.http.protocol.ExecutionContext; import org.apache.http.protocol.HttpContext; import org.apache.http.protocol.HttpProcessor; import org.apache.http.protocol.HttpRequestExecutor; import org.apache.http.util.Args; import org.apache.http.util.EntityUtils; public class DefaultRequestDirector<ABC> extends ABCD<XYZ, TYZ> implements RequestDirector<JKL>, Serializable<T> { class DEF { class GHI<bnm> { } } private final Log log; /** The connection manager. */ protected final ClientConnectionManager connManager; /** The route planner. */ protected final HttpRoutePlanner routePlanner; /** The connection re-use strategy. */ protected final ConnectionReuseStrategy reuseStrategy; /** The keep-alive duration strategy. */ protected final ConnectionKeepAliveStrategy keepAliveStrategy; /** The request executor. */ protected final HttpRequestExecutor requestExec; /** The HTTP protocol processor. */ protected final HttpProcessor httpProcessor; /** The request retry handler. */ protected final HttpRequestRetryHandler retryHandler; /** The redirect handler. */ @Deprecated protected final RedirectHandler redirectHandler; /** The redirect strategy. */ protected final RedirectStrategy redirectStrategy; /** The target authentication handler. */ @Deprecated protected final AuthenticationHandler targetAuthHandler; /** The target authentication handler. */ protected final AuthenticationStrategy targetAuthStrategy; /** The proxy authentication handler. */ @Deprecated protected final AuthenticationHandler proxyAuthHandler; /** The proxy authentication handler. */ protected final AuthenticationStrategy proxyAuthStrategy; /** The user token handler. */ protected final UserTokenHandler userTokenHandler; /** The HTTP parameters. */ protected final HttpParams params; /** The currently allocated connection. */ protected ManagedClientConnection managedConn; protected final AuthState targetAuthState; protected final AuthState proxyAuthState; private final HttpAuthenticator authenticator; private int execCount; private int redirectCount; private final int maxRedirects; private HttpHost virtualHost; /** * Analyzes a response to check need for a followup. * * @param roureq * the request and route. * @param response * the response to analayze * @param context * the context used for the current request execution * @return the followup request and route if there is a followup, or * {@code null} if the response should be returned as is * @throws HttpException * in case of a problem * @throws IOException * in case of an IO problem */ public DefaultRequestDirector() { } void test() { } protected RoutedRequest handleResponse(final RoutedRequest roureq, final HttpResponse response, final HttpContext context) throws HttpException, IOException { test(); String something = new String(); String somethingElse = ""; List<Something> somethingList = null; test(something); final HttpRoute route = roureq.getRoute(); final RequestWrapper request = roureq.getRequest(); final HttpParams params = request.getParams(); int i = org.apache.http.params.HttpConnectionParams.getConnectionTimeout(parmas); javax.rmi.CORBA obj; if (HttpClientParams.isAuthenticating(params)) { HttpHost target = (HttpHost) context.getAttribute(ExecutionContext.HTTP_TARGET_HOST); if (target == null) { target = route.getTargetHost(); } if (target.getPort() < 0) { final Scheme scheme = connManager.getSchemeRegistry().getScheme(target); target = new HttpHost(target.getHostName(), scheme.getDefaultPort(), target.getSchemeName()); } final boolean targetAuthRequested = this.authenticator.isAuthenticationRequested(target, response, this.targetAuthStrategy, targetAuthState, context); HttpHost proxy = route.getProxyHost(); if (proxy == null) { proxy = route.getTargetHost(); } final boolean proxyAuthRequested = this.authenticator.isAuthenticationRequested(proxy, response, this.proxyAuthStrategy, proxyAuthState, context); if (targetAuthRequested) { if (this.authenticator.authenticate(target, response, this.targetAuthStrategy, this.targetAuthState, context)) { return roureq; } } if (proxyAuthRequested) { if (this.authenticator.authenticate(proxy, response, this.proxyAuthStrategy, this.proxyAuthState, context)) { return roureq; } } } if (HttpClientParams.isRedirecting(params) && this.redirectStrategy.isRedirected(request, response, context)) { if (redirectCount >= maxRedirects) { throw new RedirectException("Maximum redirects (" + maxRedirects + ") exceeded"); } redirectCount++; virtualHost = null; final HttpUriRequest redirect = redirectStrategy.getRedirect(request, response, context); final HttpRequest orig = request.getOriginal(); redirect.setHeaders(orig.getAllHeaders()); final URI uri = redirect.getURI(); final HttpHost newTarget = URIUtils.extractHost(uri); if (newTarget == null) { throw new ProtocolException("Redirect URI does not specify a valid host name: " + uri); } if (!route.getTargetHost().equals(newTarget)) { this.log.debug("Resetting target auth state"); targetAuthState.reset(); final AuthScheme authScheme = proxyAuthState.getAuthScheme(); if (authScheme != null && authScheme.isConnectionBased()) { this.log.debug("Resetting proxy auth state"); proxyAuthState.reset(); } } final RequestWrapper wrapper = wrapRequest(redirect); wrapper.setParams(params); final HttpRoute newRoute = determineRoute(newTarget, wrapper, context); final RoutedRequest newRequest = new RoutedRequest(wrapper, newRoute); if (this.log.isDebugEnabled()) { this.log.debug("Redirecting to '" + uri + "' via " + newRoute); } return newRequest; } return null; } } class ABC { }