Merge tag 'v2.3.20' into testing

[gpl/argeo-jcr.git] / org.argeo.slc.repo / src / org / eclipse / aether / resolution / DependencyResolutionException.java

diff --git a/org.argeo.slc.repo/src/org/eclipse/aether/resolution/DependencyResolutionException.java b/org.argeo.slc.repo/src/org/eclipse/aether/resolution/DependencyResolutionException.java
new file mode 100644 (file)
index 0000000..27d9bb2
--- /dev/null
+++ b/org.argeo.slc.repo/src/org/eclipse/aether/resolution/DependencyResolutionException.java
@@ -0,0 +1,74 @@
+/*******************************************************************************
+ * Copyright (c) 2010, 2014 Sonatype, Inc.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ *    Sonatype, Inc. - initial API and implementation
+ *******************************************************************************/
+package org.eclipse.aether.resolution;
+
+import org.eclipse.aether.RepositoryException;
+
+/**
+ * Thrown in case of a unresolvable dependencies.
+ */
+public class DependencyResolutionException
+    extends RepositoryException
+{
+
+    private final transient DependencyResult result;
+
+    /**
+     * Creates a new exception with the specified result and cause.
+     * 
+     * @param result The dependency result at the point the exception occurred, may be {@code null}.
+     * @param cause The exception that caused this one, may be {@code null}.
+     */
+    public DependencyResolutionException( DependencyResult result, Throwable cause )
+    {
+        super( getMessage( cause ), cause );
+        this.result = result;
+    }
+
+    /**
+     * Creates a new exception with the specified result, detail message and cause.
+     * 
+     * @param result The dependency result at the point the exception occurred, may be {@code null}.
+     * @param message The detail message, may be {@code null}.
+     * @param cause The exception that caused this one, may be {@code null}.
+     */
+    public DependencyResolutionException( DependencyResult result, String message, Throwable cause )
+    {
+        super( message, cause );
+        this.result = result;
+    }
+
+    private static String getMessage( Throwable cause )
+    {
+        String msg = null;
+        if ( cause != null )
+        {
+            msg = cause.getMessage();
+        }
+        if ( msg == null || msg.length() <= 0 )
+        {
+            msg = "Could not resolve transitive dependencies";
+        }
+        return msg;
+    }
+
+    /**
+     * Gets the dependency result at the point the exception occurred. Despite being incomplete, callers might want to
+     * use this result to fail gracefully and continue their operation with whatever interim data has been gathered.
+     * 
+     * @return The dependency result or {@code null} if unknown.
+     */
+    public DependencyResult getResult()
+    {
+        return result;
+    }
+
+}