feat: fetch asset by query implementation and test cases

Author: reeshika-h

contentstack/src/androidTest/java/com/contentstack/sdk/AssetTestCase.java

@@ -9,9 +9,11 @@
 import org.junit.runners.MethodSorters;
 
 import java.util.List;
+import java.util.concurrent.CountDownLatch;
 
 import static junit.framework.Assert.assertTrue;
 import static junit.framework.TestCase.assertEquals;
+import static junit.framework.TestCase.assertNotNull;
 
 import androidx.test.InstrumentationRegistry;
 import androidx.test.core.app.ApplicationProvider;
@@ -22,6 +24,8 @@ public class AssetTestCase {
     private final String TAG = AssetTestCase.class.getSimpleName();
     private static String assetUid = BuildConfig.assetUID;
     private static Stack stack;
+    private static CountDownLatch latch;
+
 
     @BeforeClass
     public static void oneTimeSetUp() throws Exception {
@@ -191,4 +195,75 @@ public void test_GCP_NA() throws Exception {
         stack = Contentstack.stack(appContext, DEFAULT_API_KEY, DEFAULT_DELIVERY_TOKEN, DEFAULT_ENV, config);
     }
 
+    @Test
+    public void test_I_fetch_asset_by_title() {
+        final AssetLibrary assetLibrary = stack.assetLibrary().where("title", "iot-icon.png");
+        assetLibrary.fetchAll(new FetchAssetsCallback() {
+            @Override
+            public void onCompletion(ResponseType responseType, List<Asset> assets, Error error) {
+                if (error == null) {
+                    for (Asset asset : assets) {
+                        Log.d("RESULT:", "resp" + asset.json);
+                    }
+                }
+            }
+        });
+    }
+
+    @Test
+    public void test_J_fetch_asset_by_tags() {
+        final AssetLibrary assetLibrary = stack.assetLibrary().where("tags","tag1");
+        assetLibrary.fetchAll(new FetchAssetsCallback() {
+            @Override
+            public void onCompletion(ResponseType responseType, List<Asset> assets, Error error) {
+                if (error == null) {
+                    for( Asset asset : assets){
+                        Log.d("RESULT:", "resp" + asset.json);
+                    }
+                    assertTrue(assets.size()>0);
+                }
+            }
+        });
+    }
+
+    @Test
+    public void test_K_fetch_asset_by_description() {
+        final AssetLibrary assetLibrary= stack.assetLibrary().where("description","Page1");
+        assetLibrary.fetchAll(new FetchAssetsCallback() {
+            @Override
+            public void onCompletion(ResponseType responseType, List<Asset> assets, Error error) {
+                for(Asset asset : assets){
+                    Log.d("RESULT:", "resp" + asset.toJSON());
+                }
+                assertTrue(assets.size()>0);
+            }
+        });
+    }
+
+    @Test
+    public void test_L_fetch_asset_invalid() {
+        final AssetLibrary assetLibrary = stack.assetLibrary().where("title",null);
+        assetLibrary.fetchAll(new FetchAssetsCallback() {
+            @Override
+            public void onCompletion(ResponseType responseType, List<Asset> assets, Error error) {
+                Log.e("RESULT:", "ERROR:"+ error.errorMessage);
+            }
+        });
+
+    }
+
+    @Test
+    public void test_M_fetch_asset_empty_title() {
+        final AssetLibrary assetLibrary = stack.assetLibrary().where("title","");
+        assetLibrary.fetchAll(new FetchAssetsCallback() {
+            @Override
+            public void onCompletion(ResponseType responseType, List<Asset> assets, Error error) {
+                for(Asset asset : assets){
+                    Log.d("RESULT:", "resp: " + asset.toJSON());
+                }
+                assertEquals(0, assets.size());
+            }
+        });
+    }
+
 }

contentstack/src/main/java/com/contentstack/sdk/AssetLibrary.java

@@ -452,5 +452,20 @@ public AssetLibrary includeMetadata() {
         }
         return this;
     }
+    public AssetLibrary where(String key, String value) {
+        if (value != null) {
+            try {
+                JSONObject queryParams = new JSONObject();
+                queryParams.put(key, value);
+                urlQueries.put("query", queryParams);
+            } catch (JSONException e) {
+                Log.e(TAG, "JSON error: " + e.getLocalizedMessage());
+            }
+        } else {
+            Log.e(TAG, "Value for key '" + key + "' is null. Skipping addition to query.");
+        }
+        return this;
+    }
+
 
 }