Feature/ubuntu ami resolver

build.gradle

@@ -27,7 +27,7 @@ if (System.getenv('TRAVIS_BRANCH') && System.getenv('TRAVIS_PULL_REQUEST') == 'f
 }
 
 group = 'gyro'
-version = '0.15-SNAPSHOT'
+version = '0.99.0-SNAPSHOT'
 
 java {
     sourceCompatibility = JavaVersion.VERSION_1_8
@@ -48,13 +48,13 @@ repositories {
 }
 
 dependencies {
-    api 'gyro:gyro-core:0.15-SNAPSHOT'
+    api 'gyro:gyro-core:0.99.0-SNAPSHOT'
 
     implementation 'com.psddev:dari-util:3.3.607-xe0f27a'
     implementation 'org.yaml:snakeyaml:1.24'
     implementation 'org.eclipse.jgit:org.eclipse.jgit:5.4.0.201906121030-r'
     implementation 'us.monoid.web:resty:0.3.2'
-    implementation 'gyro:gyro-aws-provider:0.15-SNAPSHOT'
+    implementation 'gyro:gyro-aws-provider:0.99.0-SNAPSHOT'
     implementation enforcedPlatform('software.amazon.awssdk:bom:2.5.70')
     implementation 'software.amazon.awssdk:s3'
     implementation 'software.amazon.awssdk:apache-client'

src/main/java/gyro/ubuntu/AmiLocatorResolver.java

@@ -0,0 +1,61 @@
+package gyro.ubuntu;
+
+import gyro.core.GyroException;
+import gyro.core.Type;
+import gyro.core.reference.ReferenceResolver;
+import gyro.core.scope.Scope;
+import org.apache.commons.io.IOUtils;
+import us.monoid.json.JSONArray;
+import us.monoid.json.JSONException;
+import us.monoid.json.JSONObject;
+
+import java.net.URL;
+import java.nio.charset.StandardCharsets;
+import java.util.HashSet;
+import java.util.List;
+
+@Type("ubuntu-ami-locator")
+public class AmiLocatorResolver extends ReferenceResolver {
+
+    @Override
+    public Object resolve(Scope scope, List<Object> arguments) throws Exception {
+
+        if (arguments.size() != 4) {
+            throw new GyroException("ubuntu-ami-locator needs 4 arguments - 'name', 'architecture', 'instance-type' and 'region'");
+        }
+
+        String name = (String) arguments.get(0);
+        String arch = (String) arguments.get(1);
+        String type = (String) arguments.get(2);
+        String zone = (String) arguments.get(3);
+
+        JSONObject json = new JSONObject(IOUtils.toString(new URL("https://cloud-images.ubuntu.com/locator/ec2/releasesTable"), StandardCharsets.UTF_8));
+        JSONArray array = json.getJSONArray("aaData");
+
+        HashSet<UbuntuAmiMapper> amiMappers = new HashSet<>();
+
+        for (int i = 0; i< array.length(); i++) {
+            JSONArray jsonArray = array.getJSONArray(i);
+            UbuntuAmiMapper amiMapper = new UbuntuAmiMapper();
+            setUbuntuMapper(amiMapper, jsonArray);
+            amiMappers.add(amiMapper);
+        }
+
+        return amiMappers.stream()
+            .filter(o -> o.getZone().equals(zone)
+                && o.getName().equals(name)
+                && o.getArchitecture().equals(arch)
+                && o.getType().equals(type))
+            .map(UbuntuAmiMapper::getAmi).findFirst().orElse(null);
+    }
+
+    private void setUbuntuMapper(UbuntuAmiMapper amiMapper, JSONArray jsonArray) throws JSONException {
+        amiMapper.setZone(jsonArray.getString(0));
+        amiMapper.setName(jsonArray.getString(1));
+        amiMapper.setVersion(jsonArray.getString(2));
+        amiMapper.setArchitecture(jsonArray.getString(3));
+        amiMapper.setType(jsonArray.getString(4));
+        amiMapper.setRelease(jsonArray.getString(5));
+        amiMapper.setAmi("ami-" + jsonArray.getString(6).split(">ami-")[1].split("</a>")[0]);
+    }
+}

src/main/java/gyro/ubuntu/UbuntuAmiMapper.java

@@ -0,0 +1,67 @@
+package gyro.ubuntu;
+
+public class UbuntuAmiMapper {
+    private String zone;
+    private String name;
+    private String version;
+    private String architecture;
+    private String type;
+    private String release;
+    private String ami;
+
+    public String getZone() {
+        return zone;
+    }
+
+    public void setZone(String zone) {
+        this.zone = zone;
+    }
+
+    public String getName() {
+        return name;
+    }
+
+    public void setName(String name) {
+        this.name = name;
+    }
+
+    public String getVersion() {
+        return version;
+    }
+
+    public void setVersion(String version) {
+        this.version = version;
+    }
+
+    public String getArchitecture() {
+        return architecture;
+    }
+
+    public void setArchitecture(String architecture) {
+        this.architecture = architecture;
+    }
+
+    public String getType() {
+        return type;
+    }
+
+    public void setType(String type) {
+        this.type = type;
+    }
+
+    public String getRelease() {
+        return release;
+    }
+
+    public void setRelease(String release) {
+        this.release = release;
+    }
+
+    public String getAmi() {
+        return ami;
+    }
+
+    public void setAmi(String ami) {
+        this.ami = ami;
+    }
+}