summaryrefslogtreecommitdiffstats
path: root/java/sca/modules/binding-sca-runtime-rmi/src/main/java/org/apache/tuscany/sca/binding/sca/rmi/RMISCAServiceBindingProvider.java
blob: f3e60be83d84dc50be3b733821672a8f54353f2d (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
/*
 * 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.
 */

package org.apache.tuscany.sca.binding.sca.rmi;

import java.io.IOException;
import java.net.InetAddress;
import java.net.ServerSocket;
import java.net.URI;
import java.net.UnknownHostException;
import java.util.logging.Logger;

import org.apache.tuscany.sca.assembly.DistributedSCABinding;
import org.apache.tuscany.sca.assembly.Endpoint;
import org.apache.tuscany.sca.assembly.SCABinding;
import org.apache.tuscany.sca.binding.rmi.RMIBinding;
import org.apache.tuscany.sca.binding.rmi.RMIBindingFactory;
import org.apache.tuscany.sca.core.ExtensionPointRegistry;
import org.apache.tuscany.sca.core.FactoryExtensionPoint;
import org.apache.tuscany.sca.interfacedef.InterfaceContract;
import org.apache.tuscany.sca.provider.BindingProviderFactory;
import org.apache.tuscany.sca.provider.ProviderFactoryExtensionPoint;
import org.apache.tuscany.sca.provider.ServiceBindingProvider;

/**
 * The service binding provider for the remote sca binding implementation. Relies on the
 * RMI binding for providing a remote message endpoint
 */
public class RMISCAServiceBindingProvider implements ServiceBindingProvider {

    private static final Logger logger = Logger.getLogger(RMISCAServiceBindingProvider.class.getName());

    private SCABinding binding;
    private RMIBinding rmiBinding;
    private ServiceBindingProvider serviceBindingProvider;

    private boolean started = false;

    public RMISCAServiceBindingProvider(Endpoint endpoint, ExtensionPointRegistry extensionPoints) {

        FactoryExtensionPoint modelFactories = extensionPoints.getExtensionPoint(FactoryExtensionPoint.class);

        this.binding = ((DistributedSCABinding)endpoint.getBinding()).getSCABinding();

        rmiBinding = modelFactories.getFactory(RMIBindingFactory.class).createRMIBinding();
        rmiBinding.setName(this.binding.getName());

        URI uri = URI.create(binding.getURI());
        if (!uri.isAbsolute()) {
            int port = 8085;
            String host;
            try {
                host = InetAddress.getLocalHost().getHostAddress();
            } catch (UnknownHostException e) {
                host = "localhost";
                logger.warning("unable to determine host address, using localhost");
            }
            ServerSocket socket;
            try {
                socket = new ServerSocket(0);
                port = socket.getLocalPort();
                // host = socket.getInetAddress().getHostAddress();
                socket.close();
            } catch (IOException e) {
            }
            String bindURI = "http://" + host + ":" + port + binding.getURI();

            // FIXME: We need to pass the full URI to the endpoint registry
            binding.setURI(bindURI);
        }

        rmiBinding.setURI(this.binding.getURI());

        // create a copy of the endpoint  but with the web service binding in
        Endpoint ep = null;
        try {
            ep = (Endpoint)endpoint.clone();
        } catch (Exception ex){
            // we know we can clone endpoint references
        }
        ep.setBinding(rmiBinding);

        ProviderFactoryExtensionPoint providerFactories = extensionPoints.getExtensionPoint(ProviderFactoryExtensionPoint.class);
        BindingProviderFactory<?> providerFactory = (BindingProviderFactory<?>) providerFactories.getProviderFactory(RMIBinding.class);
        serviceBindingProvider = providerFactory.createServiceBindingProvider(ep);
        
        logger.info("Service using RMI SCA Binding: " + rmiBinding.getURI());
    }

    public InterfaceContract getBindingInterfaceContract() {
        return null;
    }

    public boolean supportsOneWayInvocation() {
        return false;
    }

    public void start() {
        if (!started) {
            started = true;
            serviceBindingProvider.start();
        }
    }

    public void stop() {
        if (started) {
            started = false;
            serviceBindingProvider.stop();
        }
    }
}