1 files changed, 82 insertions, 0 deletions
diff --git a/sandbox/travelsample/util/launcher-common/src/main/java/scatours/launcher/LauncherUtil.java b/sandbox/travelsample/util/launcher-common/src/main/java/scatours/launcher/LauncherUtil.java
new file mode 100644
index 0000000000..828ee58bf3
--- /dev/null
+++ b/sandbox/travelsample/util/launcher-common/src/main/java/scatours/launcher/LauncherUtil.java
@@ -0,0 +1,82 @@
+/*
+ * 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 scatours.launcher;
+
+import java.io.File;
+
+import org.apache.tuscany.sca.node.SCAContribution;
+import org.apache.tuscany.sca.node.SCANode;
+import org.apache.tuscany.sca.node.SCANodeFactory;
+
+/**
+ * This utility locates SCA contributions by name so that the launcher can work with various environments where 
+ * contributions are stored differently.
+ */
+public class LauncherUtil {
+
+    /**
+     * Locate an SCA contribution by name
+     * @param name The name of the SCA contribution archive
+     * @return The SCAContribution
+     */
+    public static SCAContribution locate(String name) {
+        // Try to use the target/classes directory inside Eclipse/Maven
+        File file = new File("../../contributions/" + name + "/target/classes");
+        if (!file.exists()) {
+            // Try to use the target/<contribution>.jar that is generated by maven build
+            file = new File("../../contributions/" + name + "/target/scatours-contribution-" + name + ".jar");
+            if (!file.exists()) {
+                // Try to use the contribution jar under the contributions folder of the distribution
+                file = new File("../contributions/scatours-contribution-" + name + ".jar");
+                if (!file.exists()) {
+                    throw new IllegalArgumentException("Contribution " + name + " cannot be located.");
+                }
+            }
+        }
+        return new SCAContribution(name, file.toURI().toString());
+    }
+
+    /**
+     * Locate an SCA contribution by replacing the ${name} in the pattern 
+     * @param urlPattern The url pattern that contains ${name}
+     * @param name The name of the contribution archive
+     * @return The SCAContribution
+     */
+    public static SCAContribution locate(String urlPattern, String name) {
+        String url = urlPattern.replace("${name}", name);
+        return new SCAContribution(name, url);
+    }
+
+    /**
+     * Create an SCA node from a list of contribution names
+     * @param composite
+     * @param contributionNames
+     * @return
+     */
+    public static SCANode createNode(String composite, String... contributionNames) {
+        SCAContribution[] contributions = new SCAContribution[contributionNames.length];
+        int index = 0;
+        for (String name : contributionNames) {
+            contributions[index++] = locate(name);
+        }
+        SCANode node = SCANodeFactory.newInstance().createSCANode(composite, contributions);
+        return node;
+    }
+}