Add environment filters #1129

Author: LeJeanbono

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

@@ -7,6 +7,7 @@
 import jakarta.ws.rs.core.Response;
 
 import org.gitlab4j.api.models.Environment;
+import org.gitlab4j.api.models.EnvironmentFilter;
 
 /**
  * This class provides an entry point to all the GitLab API Environments API calls.
@@ -65,6 +66,29 @@ public Pager<Environment> getEnvironments(Object projectIdOrPath, int itemsPerPa
                 "environments"));
     }
 
+    /**
+     * Get a Pager of all environments for a given project.
+     *
+     * <pre><code>GitLab Endpoint: GET /projects/:id/environments</code></pre>
+     *
+     * @param projectIdOrPath id, path of the project, or a Project instance holding the project ID or path
+     * @param itemsPerPage the number of Environment instances that will be fetched per page
+     * @param filter Environment filters
+     * @return a Pager of Environment instances
+     * @throws GitLabApiException if any exception occurs
+     */
+    public Pager<Environment> getEnvironments(Object projectIdOrPath, int itemsPerPage, EnvironmentFilter filter) throws GitLabApiException {
+        GitLabApiForm formData = new GitLabApiForm(filter.getQueryParams());
+        return (new Pager<Environment>(
+            this,
+            Environment.class,
+            itemsPerPage,
+            formData.asMap(),
+            "projects",
+            getProjectIdOrPath(projectIdOrPath),
+            "environments"));
+    }
+
     /**
      * Get a specific environment.
      *

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

@@ -12,6 +12,7 @@
 import java.util.stream.Stream;
 
 import org.gitlab4j.api.models.Environment;
+import org.gitlab4j.api.models.EnvironmentFilter;
 import org.gitlab4j.api.models.Project;
 import org.junit.jupiter.api.AfterAll;
 import org.junit.jupiter.api.BeforeAll;
@@ -136,4 +137,22 @@ public void testOptionalEnvironment() throws GitLabApiException {
         gitLabApi.getEnvironmentsApi().stopEnvironment(testProject, env.getId());
         gitLabApi.getEnvironmentsApi().deleteEnvironment(testProject, env.getId());
     }
+
+    @Test
+    public void testFilterEnvironmentsByName() throws GitLabApiException {
+
+        final String uniqueName = getUniqueName();
+        final Environment env =
+                gitLabApi.getEnvironmentsApi().createEnvironment(testProject, uniqueName, EXTERNAL_URL, TIER);
+        final String uniqueName2 = getUniqueName();
+        final Environment env2 =
+            gitLabApi.getEnvironmentsApi().createEnvironment(testProject, uniqueName2, EXTERNAL_URL, TIER);
+
+        EnvironmentFilter filter = new EnvironmentFilter().withName(uniqueName);
+        Pager<Environment> envs = gitLabApi.getEnvironmentsApi().getEnvironments(testProject, 1, filter);
+        assertEquals(envs.first().get(0).getName(), uniqueName2);
+
+        gitLabApi.getEnvironmentsApi().stopEnvironment(testProject, env.getId());
+        gitLabApi.getEnvironmentsApi().deleteEnvironment(testProject, env.getId());
+    }
 }

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

@@ -0,0 +1,40 @@
+package org.gitlab4j.api.models;
+
+import org.gitlab4j.models.GitLabForm;
+
+import java.io.Serializable;
+
+public class EnvironmentFilter implements Serializable {
+    private static final long serialVersionUID = 1L;
+
+    private String name;
+    private String search;
+    private String states;
+
+    public EnvironmentFilter withName(String name) {
+        this.name = name;
+        return this;
+    }
+
+    public EnvironmentFilter withSearch(String search) {
+        this.search = search;
+        return this;
+    }
+
+    public EnvironmentFilter withStates(String states) {
+        this.states = states;
+        return this;
+    }
+
+    /**
+     * Get the query params specified by this filter.
+     *
+     * @return a GitLabApiForm instance holding the query parameters for this GroupFilter instance
+     */
+    public GitLabForm getQueryParams() {
+        return new GitLabForm()
+            .withParam("name", name)
+            .withParam("search", search)
+            .withParam("states", states);
+    }
+}