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
|
/*
* 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.contribution.java.impl;
import java.util.ArrayList;
import java.util.HashSet;
import java.util.List;
import java.util.Set;
import org.apache.tuscany.sca.contribution.Artifact;
import org.apache.tuscany.sca.contribution.Contribution;
import org.apache.tuscany.sca.contribution.ContributionFactory;
import org.apache.tuscany.sca.contribution.Export;
import org.apache.tuscany.sca.contribution.Import;
import org.apache.tuscany.sca.contribution.ModelFactoryExtensionPoint;
import org.apache.tuscany.sca.contribution.java.JavaExport;
import org.apache.tuscany.sca.contribution.java.JavaImport;
import org.apache.tuscany.sca.contribution.resolver.DefaultImportAllModelResolver;
import org.apache.tuscany.sca.contribution.resolver.ModelResolver;
import org.apache.tuscany.sca.contribution.service.ContributionListener;
import org.apache.tuscany.sca.contribution.service.ContributionRepository;
/**
* Java Import/Export contribution listener
* The listener would process all import/export from a given contribution
* and initialize the model resolvers properly
*
* @version $Rev$ $Date$
*/
public class JavaImportExportListener implements ContributionListener {
private ContributionFactory contributionFactory;
/**
* Constructs a new JavaImportExportListener
*/
public JavaImportExportListener(ModelFactoryExtensionPoint modelFactories) {
contributionFactory = modelFactories.getFactory(ContributionFactory.class);
}
/**
* Initialize the import/export model resolvers
* Export model resolvers are same as Contribution model resolver
* Import model resolvers are matched to a specific contribution if a location URI is specified,
* otherwise it try to resolve against all the other contributions
* Also set the exporting contributions used by contribution ClassLoaders to
* match import/export for class loading.
*/
public void contributionAdded(ContributionRepository repository, Contribution contribution) {
// If the contribution does not contain sca-contribution.xml metadata
// (for example it's an existing JAR developed before SCA existed)
// export all its Java packages
ModelResolver modelResolver = contribution.getModelResolver();
// Look for META-INF/sca-contribution.xml
Artifact artifact = contributionFactory.createArtifact();
artifact.setURI(Contribution.SCA_CONTRIBUTION_META);
artifact = modelResolver.resolveModel(Artifact.class, artifact);
if (artifact.getLocation() == null) {
// Look for META-INF/sca-contribution-generated.xml
artifact.setURI(Contribution.SCA_CONTRIBUTION_GENERATED_META);
artifact = modelResolver.resolveModel(Artifact.class, artifact);
if (artifact.getLocation() == null) {
// No contribution metadata file was found, default to export all the
// Java packages found in the contribution
Set<String> packages = new HashSet<String>();
for (Artifact a: contribution.getArtifacts()) {
String uri = a.getURI();
if (uri.endsWith(".class")) {
uri = uri.substring(0, uri.length() - 6);
int d = uri.lastIndexOf('/');
if (d != -1) {
packages.add(uri.substring(0, d).replace('/', '.'));
}
}
}
// Add Java export model objects for all the packages we found
for (String pkg: packages) {
JavaExport export = new JavaExportImpl();
export.setPackage(pkg);
contribution.getExports().add(export);
}
}
}
// Initialize the contribution exports
for (Export export: contribution.getExports()) {
export.setModelResolver(contribution.getModelResolver());
}
// Initialize the contribution imports
for (Import import_: contribution.getImports()) {
boolean initialized = false;
if(import_ instanceof JavaImport) {
JavaImport javaImport = (JavaImport) import_;
//Find a matching contribution
if(javaImport.getLocation() != null) {
Contribution targetContribution = repository.getContribution(javaImport.getLocation());
if (targetContribution != null) {
// Find a matching contribution export
for (Export export: targetContribution.getExports()) {
if (export instanceof JavaExport) {
JavaExport javaExport = (JavaExport)export;
if (javaImport.getPackage().equals(javaExport.getPackage())) {
List<Contribution> exportingContributions = new ArrayList<Contribution>();
exportingContributions.add(targetContribution);
javaImport.setModelResolver(new JavaImportModelResolver(exportingContributions, javaExport.getModelResolver()));
initialized = true;
break;
}
}
}
}
}
//if no location was specified, try to resolve with any contribution
if (!initialized) {
//Use a resolver that will consider all contributions
import_.setModelResolver(new JavaImportModelResolver(repository.getContributions(), new DefaultImportAllModelResolver(import_, repository.getContributions())));
}
}
}
}
public void contributionRemoved(ContributionRepository repository, Contribution contribution) {
}
public void contributionUpdated(ContributionRepository repository, Contribution oldContribution, Contribution contribution) {
}
}
|
