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This artifact provides a single jar that contains all classes required to use remote Jakarta Enterprise Beans and Jakarta Messaging, including all dependencies. It is intended for use by those not using maven, maven users should just import the Jakarta Enterprise Beans and Jakarta Messaging BOM's instead (shaded JAR's cause lots of problems with maven, as it is very easy to inadvertently end up with different versions on classes on the class path).
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/*
 * ====================================================================
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  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
 * .
 *
 */
package org.apache.http.impl.conn;

import java.io.IOException;
import java.io.InterruptedIOException;
import java.net.InetAddress;
import java.net.Socket;
import java.util.concurrent.TimeUnit;

import javax.net.ssl.SSLSession;
import javax.net.ssl.SSLSocket;

import org.apache.http.HttpConnectionMetrics;
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.conn.ClientConnectionManager;
import org.apache.http.conn.ClientConnectionOperator;
import org.apache.http.conn.ManagedClientConnection;
import org.apache.http.conn.OperatedClientConnection;
import org.apache.http.conn.routing.HttpRoute;
import org.apache.http.conn.routing.RouteTracker;
import org.apache.http.params.HttpParams;
import org.apache.http.protocol.HttpContext;
import org.apache.http.util.Args;
import org.apache.http.util.Asserts;

/**
 * @since 4.2
 *
 * @deprecated (4.3) use {@link ManagedHttpClientConnectionFactory}.
 */
@Deprecated
class ManagedClientConnectionImpl implements ManagedClientConnection {

    private final ClientConnectionManager manager;
    private final ClientConnectionOperator operator;
    private volatile HttpPoolEntry poolEntry;
    private volatile boolean reusable;
    private volatile long duration;

    ManagedClientConnectionImpl(
            final ClientConnectionManager manager,
            final ClientConnectionOperator operator,
            final HttpPoolEntry entry) {
        super();
        Args.notNull(manager, "Connection manager");
        Args.notNull(operator, "Connection operator");
        Args.notNull(entry, "HTTP pool entry");
        this.manager = manager;
        this.operator = operator;
        this.poolEntry = entry;
        this.reusable = false;
        this.duration = Long.MAX_VALUE;
    }

    @Override
    public String getId() {
        return null;
    }

    HttpPoolEntry getPoolEntry() {
        return this.poolEntry;
    }

    HttpPoolEntry detach() {
        final HttpPoolEntry local = this.poolEntry;
        this.poolEntry = null;
        return local;
    }

    public ClientConnectionManager getManager() {
        return this.manager;
    }

    private OperatedClientConnection getConnection() {
        final HttpPoolEntry local = this.poolEntry;
        if (local == null) {
            return null;
        }
        return local.getConnection();
    }

    private OperatedClientConnection ensureConnection() {
        final HttpPoolEntry local = this.poolEntry;
        if (local == null) {
            throw new ConnectionShutdownException();
        }
        return local.getConnection();
    }

    private HttpPoolEntry ensurePoolEntry() {
        final HttpPoolEntry local = this.poolEntry;
        if (local == null) {
            throw new ConnectionShutdownException();
        }
        return local;
    }

    @Override
    public void close() throws IOException {
        final HttpPoolEntry local = this.poolEntry;
        if (local != null) {
            final OperatedClientConnection conn = local.getConnection();
            local.getTracker().reset();
            conn.close();
        }
    }

    @Override
    public void shutdown() throws IOException {
        final HttpPoolEntry local = this.poolEntry;
        if (local != null) {
            final OperatedClientConnection conn = local.getConnection();
            local.getTracker().reset();
            conn.shutdown();
        }
    }

    @Override
    public boolean isOpen() {
        final OperatedClientConnection conn = getConnection();
        if (conn != null) {
            return conn.isOpen();
        } else {
            return false;
        }
    }

    @Override
    public boolean isStale() {
        final OperatedClientConnection conn = getConnection();
        if (conn != null) {
            return conn.isStale();
        } else {
            return true;
        }
    }

    @Override
    public void setSocketTimeout(final int timeout) {
        final OperatedClientConnection conn = ensureConnection();
        conn.setSocketTimeout(timeout);
    }

    @Override
    public int getSocketTimeout() {
        final OperatedClientConnection conn = ensureConnection();
        return conn.getSocketTimeout();
    }

    @Override
    public HttpConnectionMetrics getMetrics() {
        final OperatedClientConnection conn = ensureConnection();
        return conn.getMetrics();
    }

    @Override
    public void flush() throws IOException {
        final OperatedClientConnection conn = ensureConnection();
        conn.flush();
    }

    @Override
    public boolean isResponseAvailable(final int timeout) throws IOException {
        final OperatedClientConnection conn = ensureConnection();
        return conn.isResponseAvailable(timeout);
    }

    @Override
    public void receiveResponseEntity(
            final HttpResponse response) throws HttpException, IOException {
        final OperatedClientConnection conn = ensureConnection();
        conn.receiveResponseEntity(response);
    }

    @Override
    public HttpResponse receiveResponseHeader() throws HttpException, IOException {
        final OperatedClientConnection conn = ensureConnection();
        return conn.receiveResponseHeader();
    }

    @Override
    public void sendRequestEntity(
            final HttpEntityEnclosingRequest request) throws HttpException, IOException {
        final OperatedClientConnection conn = ensureConnection();
        conn.sendRequestEntity(request);
    }

    @Override
    public void sendRequestHeader(
            final HttpRequest request) throws HttpException, IOException {
        final OperatedClientConnection conn = ensureConnection();
        conn.sendRequestHeader(request);
    }

    @Override
    public InetAddress getLocalAddress() {
        final OperatedClientConnection conn = ensureConnection();
        return conn.getLocalAddress();
    }

    @Override
    public int getLocalPort() {
        final OperatedClientConnection conn = ensureConnection();
        return conn.getLocalPort();
    }

    @Override
    public InetAddress getRemoteAddress() {
        final OperatedClientConnection conn = ensureConnection();
        return conn.getRemoteAddress();
    }

    @Override
    public int getRemotePort() {
        final OperatedClientConnection conn = ensureConnection();
        return conn.getRemotePort();
    }

    @Override
    public boolean isSecure() {
        final OperatedClientConnection conn = ensureConnection();
        return conn.isSecure();
    }

    @Override
    public void bind(final Socket socket) throws IOException {
        throw new UnsupportedOperationException();
    }

    @Override
    public Socket getSocket() {
        final OperatedClientConnection conn = ensureConnection();
        return conn.getSocket();
    }

    @Override
    public SSLSession getSSLSession() {
        final OperatedClientConnection conn = ensureConnection();
        SSLSession result = null;
        final Socket sock = conn.getSocket();
        if (sock instanceof SSLSocket) {
            result = ((SSLSocket)sock).getSession();
        }
        return result;
    }

    public Object getAttribute(final String id) {
        final OperatedClientConnection conn = ensureConnection();
        if (conn instanceof HttpContext) {
            return ((HttpContext) conn).getAttribute(id);
        } else {
            return null;
        }
    }

    public Object removeAttribute(final String id) {
        final OperatedClientConnection conn = ensureConnection();
        if (conn instanceof HttpContext) {
            return ((HttpContext) conn).removeAttribute(id);
        } else {
            return null;
        }
    }

    public void setAttribute(final String id, final Object obj) {
        final OperatedClientConnection conn = ensureConnection();
        if (conn instanceof HttpContext) {
            ((HttpContext) conn).setAttribute(id, obj);
        }
    }

    @Override
    public HttpRoute getRoute() {
        final HttpPoolEntry local = ensurePoolEntry();
        return local.getEffectiveRoute();
    }

    @Override
    public void open(
            final HttpRoute route,
            final HttpContext context,
            final HttpParams params) throws IOException {
        Args.notNull(route, "Route");
        Args.notNull(params, "HTTP parameters");
        final OperatedClientConnection conn;
        synchronized (this) {
            if (this.poolEntry == null) {
                throw new ConnectionShutdownException();
            }
            final RouteTracker tracker = this.poolEntry.getTracker();
            Asserts.notNull(tracker, "Route tracker");
            Asserts.check(!tracker.isConnected(), "Connection already open");
            conn = this.poolEntry.getConnection();
        }

        final HttpHost proxy  = route.getProxyHost();
        this.operator.openConnection(
                conn,
                (proxy != null) ? proxy : route.getTargetHost(),
                route.getLocalAddress(),
                context, params);

        synchronized (this) {
            if (this.poolEntry == null) {
                throw new InterruptedIOException();
            }
            final RouteTracker tracker = this.poolEntry.getTracker();
            if (proxy == null) {
                tracker.connectTarget(conn.isSecure());
            } else {
                tracker.connectProxy(proxy, conn.isSecure());
            }
        }
    }

    @Override
    public void tunnelTarget(
            final boolean secure, final HttpParams params) throws IOException {
        Args.notNull(params, "HTTP parameters");
        final HttpHost target;
        final OperatedClientConnection conn;
        synchronized (this) {
            if (this.poolEntry == null) {
                throw new ConnectionShutdownException();
            }
            final RouteTracker tracker = this.poolEntry.getTracker();
            Asserts.notNull(tracker, "Route tracker");
            Asserts.check(tracker.isConnected(), "Connection not open");
            Asserts.check(!tracker.isTunnelled(), "Connection is already tunnelled");
            target = tracker.getTargetHost();
            conn = this.poolEntry.getConnection();
        }

        conn.update(null, target, secure, params);

        synchronized (this) {
            if (this.poolEntry == null) {
                throw new InterruptedIOException();
            }
            final RouteTracker tracker = this.poolEntry.getTracker();
            tracker.tunnelTarget(secure);
        }
    }

    @Override
    public void tunnelProxy(
            final HttpHost next, final boolean secure, final HttpParams params) throws IOException {
        Args.notNull(next, "Next proxy");
        Args.notNull(params, "HTTP parameters");
        final OperatedClientConnection conn;
        synchronized (this) {
            if (this.poolEntry == null) {
                throw new ConnectionShutdownException();
            }
            final RouteTracker tracker = this.poolEntry.getTracker();
            Asserts.notNull(tracker, "Route tracker");
            Asserts.check(tracker.isConnected(), "Connection not open");
            conn = this.poolEntry.getConnection();
        }

        conn.update(null, next, secure, params);

        synchronized (this) {
            if (this.poolEntry == null) {
                throw new InterruptedIOException();
            }
            final RouteTracker tracker = this.poolEntry.getTracker();
            tracker.tunnelProxy(next, secure);
        }
    }

    @Override
    public void layerProtocol(
            final HttpContext context, final HttpParams params) throws IOException {
        Args.notNull(params, "HTTP parameters");
        final HttpHost target;
        final OperatedClientConnection conn;
        synchronized (this) {
            if (this.poolEntry == null) {
                throw new ConnectionShutdownException();
            }
            final RouteTracker tracker = this.poolEntry.getTracker();
            Asserts.notNull(tracker, "Route tracker");
            Asserts.check(tracker.isConnected(), "Connection not open");
            Asserts.check(tracker.isTunnelled(), "Protocol layering without a tunnel not supported");
            Asserts.check(!tracker.isLayered(), "Multiple protocol layering not supported");
            target = tracker.getTargetHost();
            conn = this.poolEntry.getConnection();
        }
        this.operator.updateSecureConnection(conn, target, context, params);

        synchronized (this) {
            if (this.poolEntry == null) {
                throw new InterruptedIOException();
            }
            final RouteTracker tracker = this.poolEntry.getTracker();
            tracker.layerProtocol(conn.isSecure());
        }
    }

    @Override
    public Object getState() {
        final HttpPoolEntry local = ensurePoolEntry();
        return local.getState();
    }

    @Override
    public void setState(final Object state) {
        final HttpPoolEntry local = ensurePoolEntry();
        local.setState(state);
    }

    @Override
    public void markReusable() {
        this.reusable = true;
    }

    @Override
    public void unmarkReusable() {
        this.reusable = false;
    }

    @Override
    public boolean isMarkedReusable() {
        return this.reusable;
    }

    @Override
    public void setIdleDuration(final long duration, final TimeUnit unit) {
        if(duration > 0) {
            this.duration = unit.toMillis(duration);
        } else {
            this.duration = -1;
        }
    }

    @Override
    public void releaseConnection() {
        synchronized (this) {
            if (this.poolEntry == null) {
                return;
            }
            this.manager.releaseConnection(this, this.duration, TimeUnit.MILLISECONDS);
            this.poolEntry = null;
        }
    }

    @Override
    public void abortConnection() {
        synchronized (this) {
            if (this.poolEntry == null) {
                return;
            }
            this.reusable = false;
            final OperatedClientConnection conn = this.poolEntry.getConnection();
            try {
                conn.shutdown();
            } catch (final IOException ignore) {
            }
            this.manager.releaseConnection(this, this.duration, TimeUnit.MILLISECONDS);
            this.poolEntry = null;
        }
    }

}