spring-cloudgh-89 List maven repositories that were used when resolut…

…ion of artifact fails

- Add `ResourceNotResolvedException` to `DelegatingResourceLoader`

spring-cloud-deployer-resource-maven/src/main/java/org/springframework/cloud/deployer/resource/maven/MavenArtifactResolver.java

@@ -271,8 +271,19 @@ Resource resolve(MavenResource resource) {
 			resolvedArtifact = results.get(results.size() - 1);
 		}
 		catch (ArtifactResolutionException e) {
+			final StringBuilder errorMessage = new StringBuilder("failed to resolve MavenResource: %s. Configured remote ");
+
+			if (properties.getRemoteRepositories().size() > 1) {
+				errorMessage.append("repositories: ");
+			}
+			else {
+				errorMessage.append("repository: ");
+			}
+
+			errorMessage.append(StringUtils.collectionToCommaDelimitedString(properties.getRemoteRepositories().keySet()));
+
 			throw new IllegalStateException(
-					String.format("failed to resolve MavenResource: %s", resource.toString()), e);
+					String.format(errorMessage.toString(), resource.toString()), e);
 		}
 		return toResource(resolvedArtifact);
 	}

spring-cloud-deployer-resource-support/src/main/java/org/springframework/cloud/deployer/resource/support/DelegatingResourceLoader.java

@@ -20,7 +20,6 @@
 import java.io.FileOutputStream;
 import java.io.IOException;
 import java.net.URI;
-import java.net.URISyntaxException;
 import java.nio.file.Files;
 import java.nio.file.Path;
 import java.util.Collections;
@@ -137,12 +136,10 @@ public Resource getResource(String location) {
 				return new FileSystemResource(cachedResource);
 			}
 		}
-		catch (URISyntaxException e) {
-			throw new IllegalArgumentException(e);
-		}
-		catch (IOException e) {
-			throw new IllegalStateException(e);
+		catch (Exception e) {
+			throw new ResourceNotResolvedException(e.getMessage(), e);
 		}
+
 	}
 
 	@Override
@@ -187,4 +184,5 @@ private static boolean existsAsFile(Resource resource) {
 		}
 		return false;
 	}
+
 }

spring-cloud-deployer-resource-support/src/main/java/org/springframework/cloud/deployer/resource/support/ResourceNotResolvedException.java

@@ -0,0 +1,34 @@
+/*
+ * Copyright 2016 the original author or authors.
+ *
+ * Licensed 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.springframework.cloud.deployer.resource.support;
+
+/**
+ * Thrown to indicate failure resolving a {@link org.springframework.core.io.Resource}.
+ *
+ * @author Mark Pollack
+ */
+@SuppressWarnings("serial")
+public class ResourceNotResolvedException extends RuntimeException {
+
+	/**
+	 * Create a new {@link ResourceNotResolvedException} with the specified options.
+	 * @param message the exception message to display to the user
+	 * @param cause the underlying cause
+	 */
+	public ResourceNotResolvedException(String message, Throwable cause) {
+		super(message, cause);
+	}
+}