1 files changed, 121 insertions, 0 deletions
diff --git a/sca-java-1.x/tags/1.6.1-TUSCANY-3909/workspace-impl/src/main/java/org/apache/tuscany/sca/workspace/scanner/impl/JarContributionScanner.java b/sca-java-1.x/tags/1.6.1-TUSCANY-3909/workspace-impl/src/main/java/org/apache/tuscany/sca/workspace/scanner/impl/JarContributionScanner.java
new file mode 100644
index 0000000000..9dd1b3a15b
--- /dev/null
+++ b/sca-java-1.x/tags/1.6.1-TUSCANY-3909/workspace-impl/src/main/java/org/apache/tuscany/sca/workspace/scanner/impl/JarContributionScanner.java
@@ -0,0 +1,121 @@
+/*
+ * 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.scanner.impl;
+
+import java.io.IOException;
+import java.net.MalformedURLException;
+import java.net.URL;
+import java.net.URLConnection;
+import java.util.ArrayList;
+import java.util.HashSet;
+import java.util.List;
+import java.util.Set;
+import java.util.jar.JarEntry;
+import java.util.jar.JarInputStream;
+
+import org.apache.tuscany.sca.contribution.scanner.ContributionScanner;
+import org.apache.tuscany.sca.contribution.service.ContributionReadException;
+
+/**
+ * JAR Contribution processor.
+ * 
+ * @version $Rev$ $Date$
+ */
+public class JarContributionScanner implements ContributionScanner {
+
+    public JarContributionScanner() {
+    }
+
+    public String getContributionType() {
+        return "application/x-compressed";
+    }
+
+    public URL getArtifactURL(URL contributionURL, String artifact) throws ContributionReadException {
+        try {
+            URL url;
+            if (contributionURL.toString().startsWith("jar:")) {
+                url = new URL(contributionURL, artifact.toString());
+            } else {
+                url = new URL("jar:" + contributionURL.toExternalForm() + "!/" + artifact);
+            }
+            return url;
+        } catch (MalformedURLException e) {
+            throw new ContributionReadException(e);
+        }
+    }
+
+    public List<String> getArtifacts(URL contributionURL) throws ContributionReadException {
+
+        // Assume the URL references a JAR file
+        try {
+            URLConnection connection = contributionURL.openConnection();
+            connection.setUseCaches(false);
+            JarInputStream jar = new JarInputStream(connection.getInputStream());
+            try {
+                Set<String> names = new HashSet<String>();
+                while (true) {
+                    JarEntry entry = jar.getNextJarEntry();
+                    if (entry == null) {
+                        // EOF
+                        break;
+                    }
+
+                    String name = entry.getName(); 
+                    if (name.length() != 0 && !name.startsWith(".")) {
+                        
+                        // Trim trailing /
+                        if (name.endsWith("/")) {
+                            name = name.substring(0, name.length() - 1);
+                        }
+
+                        // Add the entry name
+                        if (!names.contains(name)) {
+                            names.add(name);
+                            
+                            // Add parent folder names to the list too
+                            for (;;) {
+                                int s = name.lastIndexOf('/');
+                                if (s == -1) {
+                                    name = "";
+                                } else {
+                                    name = name.substring(0, s);
+                                }
+                                if (name.length() != 0 && !names.contains(name)) {
+                                    names.add(name);
+                                } else {
+                                    break;
+                                }
+                            }
+                        }
+                    }
+                }
+                
+                // Return list of URIs
+                List<String> artifacts = new ArrayList<String>(names);
+                return artifacts;
+                
+            } finally {
+                jar.close();
+            }
+        } catch (IOException e) {
+            throw new ContributionReadException(e);
+        }
+    }
+}