✨ add ability to pass maven coordinate in location

Signed-off-by: Pranav Gaikwad <pgaikwad@redhat.com>

demo-dep-output.yaml

@@ -2473,3 +2473,12 @@
     - konveyor.io/dep-source=open-source
     - konveyor.io/language=java
     prefix: file:///root/.m2/repository/org/yaml/snakeyaml/1.30
+- fileURI: io/javaoperatorsdk/operator/sample
+  provider: java
+  dependencies:
+  - name: io.javaoperatorsdk.operator.sample
+    version: 0.0.0
+    labels:
+    - konveyor.io/dep-source=open-source
+    - konveyor.io/language=java
+    prefix: file://java-project/src/main/io/javaoperatorsdk/operator/sample

demo-output.yaml

@@ -3,6 +3,7 @@
   - Backend=Golang
   - Infra=Kubernetes
   - Java
+  - Java Operator SDK
   - Language=Golang
   - License=Apache
   violations:
@@ -907,7 +908,7 @@
   errors:
     error-rule-001: |-
       unable to get query info: yaml: unmarshal errors:
-        line 9: cannot unmarshal !!map into string
+        line 10: cannot unmarshal !!map into string
   unmatched:
   - file-002
   - lang-ref-002

docs/providers.md

@@ -92,7 +92,7 @@ Here's an example config for `java` provider that is currently in-tree and does
 }
 ```
 
-The `location` can be a path to the application's source code or to a binary JAR, WAR, or EAR file.
+The `location` can be a path to the application's source code or to a binary JAR, WAR, or EAR file. Optionally, coordinates to a maven artifact can be provided as input in the format `mvn://<group-id>.<artifact-id>:<version>:<classifier>:<path>`. The field `<path>` is optional, it specifies a local path where the artifact will be downloaded. If not specified, provider will use a temporary directory to download it.
 
 The `java` provider also takes following options in `providerSpecificConfig`:
 

external-providers/java-external-provider/pkg/java_external_provider/provider.go

@@ -31,6 +31,7 @@ const (
 	WebArchive        = ".war"
 	EnterpriseArchive = ".ear"
 	ClassFile         = ".class"
+	MvnURIPrefix      = "mvn://"
 )
 
 // provider specific config keys
@@ -220,6 +221,42 @@ func (p *javaProvider) Init(ctx context.Context, log logr.Logger, config provide
 	var returnErr error
 	// each service client should have their own context
 	ctx, cancelFunc := context.WithCancel(ctx)
+	// location can be a coordinate to a remote mvn artifact
+	if strings.HasPrefix(config.Location, MvnURIPrefix) {
+		mvnUri := strings.Replace(config.Location, MvnURIPrefix, "", 1)
+		// URI format is <group>:<artifact>:<version>:<classifier>:<path>
+		// <path> is optional & points to a local path where it will be downloaded
+		mvnUriParts := strings.Split(mvnUri, ":")
+		if len(mvnUriParts) < 4 || len(mvnUriParts) > 6 {
+			cancelFunc()
+			return nil, fmt.Errorf("invalid maven coordinates in location %s", config.Location)
+		}
+		outputDir := "."
+		if len(mvnUriParts) == 5 {
+			if stat, err := os.Stat(mvnUriParts[len(mvnUriParts)-1]); err != nil || !stat.IsDir() {
+				cancelFunc()
+				return nil, fmt.Errorf("output path does not exist or not a directory")
+			}
+			outputDir = mvnUriParts[len(mvnUriParts)-1]
+		}
+		mvnOptions := []string{
+			"dependency:copy",
+			fmt.Sprintf("-Dartifact=%s", strings.Join(mvnUriParts[:4], ":")),
+			fmt.Sprintf("-DoutputDirectory=%s", outputDir),
+		}
+		if mavenSettingsFile != "" {
+			mvnOptions = append(mvnOptions, "-s", mavenSettingsFile)
+		}
+		cmd := exec.CommandContext(ctx, "mvn", mvnOptions...)
+		cmd.Dir = outputDir
+		if err := cmd.Run(); err != nil {
+			cancelFunc()
+			return nil, fmt.Errorf("error downloading java artifact - %s", mvnUri)
+		}
+		config.Location = filepath.Join(outputDir,
+			fmt.Sprintf("%s.%s", strings.Join(mvnUriParts[1:3], "-"), strings.ToLower(mvnUriParts[3])))
+	}
+
 	extension := strings.ToLower(path.Ext(config.Location))
 	switch extension {
 	case JavaArchive, WebArchive, EnterpriseArchive:

provider_container_settings.json

@@ -111,6 +111,16 @@
                     "bundles": "/jdtls/java-analyzer-bundle/java-analyzer-bundle.core/target/java-analyzer-bundle.core-1.0.0-SNAPSHOT.jar"
                 },
                 "analysisMode": "source-only"
+            },
+            {
+                "location": "mvn://io.javaoperatorsdk:quarkus:1.6.2:jar",
+                "providerSpecificConfig": {
+                    "lspServerName": "java",
+                    "lspServerPath": "/jdtls/bin/jdtls",
+                    "depOpenSourceLabelsFile": "/usr/local/etc/maven.default.index",
+                    "bundles": "/jdtls/java-analyzer-bundle/java-analyzer-bundle.core/target/java-analyzer-bundle.core-1.0.0-SNAPSHOT.jar"
+                },
+                "analysisMode": "full"
             }
         ]
     },

provider_local_external_images.json

@@ -111,6 +111,16 @@
                     "bundles": "/jdtls/java-analyzer-bundle/java-analyzer-bundle.core/target/java-analyzer-bundle.core-1.0.0-SNAPSHOT.jar"
                 },
                 "analysisMode": "source-only"
+            },
+            {
+                "location": "mvn://io.javaoperatorsdk:quarkus:1.6.2:jar",
+                "providerSpecificConfig": {
+                    "lspServerName": "java",
+                    "lspServerPath": "/jdtls/bin/jdtls",
+                    "depOpenSourceLabelsFile": "/usr/local/etc/maven.default.index",
+                    "bundles": "/jdtls/java-analyzer-bundle/java-analyzer-bundle.core/target/java-analyzer-bundle.core-1.0.0-SNAPSHOT.jar"
+                },
+                "analysisMode": "full"
             }
         ]
     },

provider_pod_local_settings.json

@@ -111,6 +111,16 @@
                     "bundles": "/jdtls/java-analyzer-bundle/java-analyzer-bundle.core/target/java-analyzer-bundle.core-1.0.0-SNAPSHOT.jar"
                 },
                 "analysisMode": "source-only"
+            },
+            {
+                "location": "mvn://io.javaoperatorsdk:quarkus:1.6.2:jar",
+                "providerSpecificConfig": {
+                    "lspServerName": "java",
+                    "lspServerPath": "/jdtls/bin/jdtls",
+                    "depOpenSourceLabelsFile": "/usr/local/etc/maven.default.index",
+                    "bundles": "/jdtls/java-analyzer-bundle/java-analyzer-bundle.core/target/java-analyzer-bundle.core-1.0.0-SNAPSHOT.jar"
+                },
+                "analysisMode": "full"
             }
         ]
     },

rule-example.yaml

@@ -300,3 +300,12 @@
   when:
     java.referenced:
       pattern: com.sun.net.httpserver.HttpExchange
+- category: mandatory
+  description: |
+    This rule tests the application downloaded from maven artifact
+  tag:
+  - Java Operator SDK
+  ruleID: java-downloaded-maven-artifact
+  when:
+    java.referenced:
+      pattern: io.javaoperatorsdk.operator.Operator