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
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
|
/*
* 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.workspace.manager.impl;
import java.io.File;
import java.net.URI;
import java.util.HashSet;
import java.util.List;
import java.util.Set;
import org.apache.tuscany.sca.contribution.Contribution;
import org.apache.tuscany.sca.contribution.ModelFactoryExtensionPoint;
import org.apache.tuscany.sca.contribution.processor.URLArtifactProcessor;
import org.apache.tuscany.sca.contribution.processor.URLArtifactProcessorExtensionPoint;
import org.apache.tuscany.sca.contribution.resolver.ExtensibleModelResolver;
import org.apache.tuscany.sca.core.ExtensionPointRegistry;
import org.apache.tuscany.sca.core.UtilityExtensionPoint;
import org.apache.tuscany.sca.host.embedded.impl.ReallySmallRuntime;
import org.apache.tuscany.sca.monitor.Monitor;
import org.apache.tuscany.sca.monitor.MonitorFactory;
import org.apache.tuscany.sca.monitor.Problem;
import org.apache.tuscany.sca.monitor.Problem.Severity;
import org.apache.tuscany.sca.workspace.Workspace;
import org.apache.tuscany.sca.workspace.WorkspaceFactory;
import org.apache.tuscany.sca.workspace.builder.ContributionDependencyBuilder;
import org.apache.tuscany.sca.workspace.builder.impl.ContributionDependencyBuilderImpl;
import org.apache.tuscany.sca.workspace.manager.WorkspaceManager;
import org.osoa.sca.ServiceRuntimeException;
/**
* This workspace manager class provides an SPI for firing up the Tuscany runtime
* and for providing access to the Tuscany ExtensionPointRegsitry. With a reference to the
* registry you can add new extension points programmatically before starting the runtime.
* Once the runtime is started you can read contributions, create a workspace, populate it
* and then resolve it.
*
* A workspace is a collection of contributions. A workspace populated
* with one or more contribution models can be resolved to ensure
* that all referenced artifacts are located. When more than one contribution
* model is present resolution takes into account the import and export relationships
* between contributions.
*/
public class WorkspaceManagerImpl extends WorkspaceManager {
private ReallySmallRuntime runtime;
private ModelFactoryExtensionPoint modelFactories;
private URLArtifactProcessorExtensionPoint artifactProcessorExtensions;
private UtilityExtensionPoint utilities;
private WorkspaceFactory workspaceFactory;
private URLArtifactProcessor<Contribution> contributionProcessor;
private ContributionDependencyBuilder contributionDependencyBuilder;
private MonitorFactory monitorFactory;
private Monitor monitor;
public WorkspaceManagerImpl() throws ServiceRuntimeException{
try {
runtime = new ReallySmallRuntime(Thread.currentThread().getContextClassLoader());
ExtensionPointRegistry registry = getRegistry();
modelFactories = registry.getExtensionPoint(ModelFactoryExtensionPoint.class);
artifactProcessorExtensions = registry.getExtensionPoint(URLArtifactProcessorExtensionPoint.class);
utilities = registry.getExtensionPoint(UtilityExtensionPoint.class);
workspaceFactory = modelFactories.getFactory(WorkspaceFactory.class);
contributionProcessor = artifactProcessorExtensions.getProcessor(Contribution.class);
monitorFactory = utilities.getUtility(MonitorFactory.class);
monitor = monitorFactory.createMonitor();
contributionDependencyBuilder = new ContributionDependencyBuilderImpl(monitor);
} catch(Exception ex) {
throw new ServiceRuntimeException(ex);
}
}
public ExtensionPointRegistry getRegistry(){
return runtime.getExtensionPointRegistry();
}
public void start() throws ServiceRuntimeException {
try {
runtime.start();
} catch(Exception ex) {
throw new ServiceRuntimeException(ex);
}
}
public void stop() throws ServiceRuntimeException{
try {
runtime.stop();
} catch(Exception ex) {
throw new ServiceRuntimeException(ex);
}
}
public Workspace createWorkspace(){
Workspace workspace = workspaceFactory.createWorkspace();
workspace.setModelResolver(new ExtensibleModelResolver(workspace, getRegistry()));
return workspace;
}
public Contribution readContribution(String name, String location) throws ServiceRuntimeException{
try {
Contribution returnContribution =
contributionProcessor.read(null,
URI.create(name),
new File(location).toURI().toURL());
analyzeProblems();
return returnContribution;
} catch (Exception ex) {
throw new ServiceRuntimeException(ex);
}
}
public void addContributionToWorkspace(Workspace workspace, Contribution contribution) throws ServiceRuntimeException{
try {
workspace.getContributions().add(contribution);
} catch (Exception ex) {
throw new ServiceRuntimeException(ex);
}
}
public void resolveWorkspace(Workspace workspace) throws ServiceRuntimeException {
try {
// an algorithm to resolve contributions given their dependencies
// need to look at the one from 2.x as this one expects contributions
// to be presented in the right order
Set<Contribution> resolved = new HashSet<Contribution>();
for (Contribution contribution: workspace.getContributions()) {
List<Contribution> dependencies = contributionDependencyBuilder.buildContributionDependencies(contribution, workspace);
// Resolve contributions
for (Contribution dependency: dependencies) {
if (!resolved.contains(dependency)) {
resolved.add(dependency);
contributionProcessor.resolve(contribution, workspace.getModelResolver());
}
}
}
analyzeProblems();
} catch (Exception ex) {
throw new ServiceRuntimeException(ex);
}
}
private void analyzeProblems() throws Exception {
for (Problem problem : monitor.getProblems()) {
if ((problem.getSeverity() == Severity.ERROR) && (!problem.getMessageId().equals("SchemaError"))) {
if (problem.getCause() != null) {
throw problem.getCause();
} else {
throw new ServiceRuntimeException(problem.toString());
}
}
}
}
}
|
