Add project Template list (#1127)

Author: LeJeanbono

gitlab4j-api/src/main/java/org/gitlab4j/api/ProjectApi.java

@@ -71,6 +71,8 @@
 import org.gitlab4j.api.models.UploadedFile;
 import org.gitlab4j.api.models.Variable;
 import org.gitlab4j.api.models.Visibility;
+import org.gitlab4j.api.models.ProjectTemplate;
+import org.gitlab4j.api.models.ProjectTemplateType;
 import org.gitlab4j.models.Constants;
 import org.gitlab4j.models.utils.ISO8601;
 
@@ -4774,4 +4776,16 @@ public List<Iteration> listProjectIterations(Object projectIdOrPath, IterationFi
                 get(Response.Status.OK, queryParams, "projects", getProjectIdOrPath(projectIdOrPath), "iterations");
         return (response.readEntity(new GenericType<List<Iteration>>() {}));
     }
+
+    public List<ProjectTemplate> getProjectTemplates(Object projectIdOrPath, ProjectTemplateType type)
+            throws GitLabApiException {
+        Response response = get(
+                Response.Status.OK,
+                null,
+                "projects",
+                getProjectIdOrPath(projectIdOrPath),
+                "templates",
+                type.toString());
+        return (response.readEntity(new GenericType<List<ProjectTemplate>>() {}));
+    }
 }

gitlab4j-api/src/test/java/org/gitlab4j/api/TestProjectApi.java

@@ -56,6 +56,8 @@
 import org.gitlab4j.api.models.User;
 import org.gitlab4j.api.models.Variable;
 import org.gitlab4j.api.models.Visibility;
+import org.gitlab4j.api.models.ProjectTemplate;
+import org.gitlab4j.api.models.ProjectTemplateType;
 import org.gitlab4j.models.Constants;
 import org.junit.jupiter.api.AfterAll;
 import org.junit.jupiter.api.BeforeAll;
@@ -1084,4 +1086,17 @@ public void testRotateProjectAccessToken() throws GitLabApiException {
         //        assertTrue(gitLabApi.getProjectApi().getProjectAccessToken(testProject.getId(),
         // token.getId()).isRevoked());
     }
+
+    @Test
+    public void testProjectTemplates() throws GitLabApiException {
+
+        assumeTrue(testProject != null);
+
+        // Act
+        List<ProjectTemplate> members =
+                gitLabApi.getProjectApi().getProjectTemplates(testProject, ProjectTemplateType.LICENSES);
+
+        // Assert
+        assertNotNull(members);
+    }
 }

gitlab4j-models/src/main/java/org/gitlab4j/api/models/ProjectTemplate.java

@@ -0,0 +1,33 @@
+package org.gitlab4j.api.models;
+
+import org.gitlab4j.models.utils.JacksonJson;
+
+import java.io.Serializable;
+
+public class ProjectTemplate implements Serializable {
+    private static final long serialVersionUID = 1L;
+
+    private String key;
+    private String name;
+
+    public String getKey() {
+        return key;
+    }
+
+    public void setKey(String key) {
+        this.key = key;
+    }
+
+    public String getName() {
+        return name;
+    }
+
+    public void setName(String name) {
+        this.name = name;
+    }
+
+    @Override
+    public String toString() {
+        return (JacksonJson.toJsonString(this));
+    }
+}

gitlab4j-models/src/main/java/org/gitlab4j/api/models/ProjectTemplateDetail.java

@@ -0,0 +1,4 @@
+package org.gitlab4j.api.models;
+
+public class ProjectTemplateDetail extends ProjectTemplate {
+}

gitlab4j-models/src/main/java/org/gitlab4j/api/models/ProjectTemplateType.java

@@ -0,0 +1,31 @@
+package org.gitlab4j.api.models;
+
+import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
+import org.gitlab4j.models.utils.JacksonJsonEnumHelper;
+
+public enum ProjectTemplateType {
+    DOCKERFILES,
+    GITIGNORES,
+    GITLAB_CI_YMLS,
+    LICENSES,
+    ISSUES,
+    MERGE_REQUESTS;
+
+    private static final JacksonJsonEnumHelper<ProjectTemplateType> enumHelper = new JacksonJsonEnumHelper<>(ProjectTemplateType.class);
+
+    @JsonCreator
+    public static ProjectTemplateType forValue(String value) {
+        return enumHelper.forValue(value);
+    }
+
+    @JsonValue
+    public String toValue() {
+        return (enumHelper.toString(this));
+    }
+
+    @Override
+    public String toString() {
+        return (enumHelper.toString(this));
+    }
+}

gitlab4j-models/src/test/java/org/gitlab4j/models/TestGitLabApiBeans.java

@@ -496,6 +496,12 @@ public void testProjectApprovalsCofig() throws Exception {
         assertTrue(compareJson(approvalsConfig, "project-approvals-config.json"));
     }
 
+    @Test
+    public void testProjectTemplates() throws Exception {
+        List<ProjectTemplate> projectTemplates = unmarshalResourceList(ProjectTemplate.class, "project-templates.json");
+        assertTrue(compareJson(projectTemplates, "project-templates.json"));
+    }
+
     @Test
     public void testProtectedBranch() throws Exception {
         ProtectedBranch protectedBranch = unmarshalResource(ProtectedBranch.class, "protected-branch.json");

gitlab4j-models/src/test/resources/org/gitlab4j/models/project-templates.json

@@ -0,0 +1,10 @@
+[
+  {
+    "key": "epl-1.0",
+    "name": "Eclipse Public License 1.0"
+  },
+  {
+    "key": "lgpl-3.0",
+    "name": "GNU Lesser General Public License v3.0"
+  }
+]