fix: batch error response processing (#255)

Author: mmuruev

src/main/java/com/crowdin/client/core/http/exceptions/HttpBatchBadRequestException.java

@@ -0,0 +1,42 @@
+package com.crowdin.client.core.http.exceptions;
+
+import lombok.Data;
+import lombok.EqualsAndHashCode;
+
+import java.io.Serializable;
+import java.util.Collections;
+import java.util.List;
+
+@EqualsAndHashCode(callSuper = true)
+@Data
+public class HttpBatchBadRequestException extends CrowdinApiException {
+    private final List<BatchErrors> errors;
+
+    public HttpBatchBadRequestException() {
+        this.errors = Collections.emptyList();
+    }
+
+    @Data
+    public static class BatchErrors implements Serializable {
+        private Integer index;
+        private List<ErrorHolder> errors;
+
+    }
+
+    @Data
+    public static class ErrorHolder {
+        private ErrorKey error;
+    }
+
+    @Data
+    public static class ErrorKey implements Serializable {
+        private String key;
+        private List<Error> errors;
+    }
+
+    @Data
+    public static class Error {
+        private String code;
+        private String message;
+    }
+}

src/main/java/com/crowdin/client/core/http/impl/json/CrowdinApiExceptionDeserializer.java

@@ -2,6 +2,7 @@
 
 import com.crowdin.client.core.http.exceptions.CrowdinApiException;
 import com.crowdin.client.core.http.exceptions.HttpBadRequestException;
+import com.crowdin.client.core.http.exceptions.HttpBatchBadRequestException;
 import com.crowdin.client.core.http.exceptions.HttpException;
 import com.fasterxml.jackson.core.JsonParser;
 import com.fasterxml.jackson.core.TreeNode;
@@ -10,9 +11,6 @@
 import com.fasterxml.jackson.databind.ObjectMapper;
 
 import java.io.IOException;
-import java.util.List;
-import java.util.stream.Collectors;
-import java.util.stream.StreamSupport;
 
 public class CrowdinApiExceptionDeserializer extends JsonDeserializer<CrowdinApiException> {
 
@@ -25,14 +23,18 @@ public CrowdinApiExceptionDeserializer(ObjectMapper objectMapper) {
     @Override
     public CrowdinApiException deserialize(JsonParser p, DeserializationContext ctxt) throws IOException {
         TreeNode treeNode = p.getCodec().readTree(p);
-        Iterable<String> iterable = treeNode::fieldNames;
-        List<String> fields = StreamSupport
-            .stream(iterable.spliterator(), false)
-            .collect(Collectors.toList());
-        if (fields.contains("errors")) {
-            return this.objectMapper.readValue(treeNode.toString(), HttpBadRequestException.class);
-        } else if (fields.contains("error")) {
-            return this.objectMapper.readValue(treeNode.toString(), HttpException.class);
+        TreeNode errors = treeNode.get("errors");
+
+        if (errors != null) {
+            TreeNode firstElement = errors.get(0);
+
+            if (firstElement != null && firstElement.get("index") != null) {
+                return this.objectMapper.treeToValue(treeNode, HttpBatchBadRequestException.class);
+            }
+
+            return this.objectMapper.treeToValue(treeNode, HttpBadRequestException.class);
+        } else if (treeNode.get("error") != null) {
+            return this.objectMapper.treeToValue(treeNode, HttpException.class);
         } else {
             return HttpException.fromMessage(treeNode.toString());
         }

src/test/java/com/crowdin/client/core/http/impl/json/CrowdinApiExceptionDeserializerTest.java

@@ -2,6 +2,7 @@
 
 import com.crowdin.client.core.http.exceptions.CrowdinApiException;
 import com.crowdin.client.core.http.exceptions.HttpBadRequestException;
+import com.crowdin.client.core.http.exceptions.HttpBatchBadRequestException;
 import com.crowdin.client.core.http.exceptions.HttpException;
 import com.fasterxml.jackson.core.JsonFactory;
 import com.fasterxml.jackson.core.JsonParser;
@@ -21,16 +22,19 @@ public class CrowdinApiExceptionDeserializerTest {
 
     private String error;
     private String errorsResponse;
+    private String batchErrorsResponse;
     private String unrecognizedError;
 
     @BeforeEach
     void setUp() throws IOException {
         String resourceDir = "api/core/error.json";
         String errorResponseDir = "api/core/errorsResponse.json";
+        String batchErrorsResponseDir = "api/core/batchErrorsResponse.json";
         String unrecognizedErrorDir = "api/core/unrecognizedError.json";
 
         error = getFile(resourceDir);
         errorsResponse = getFile(errorResponseDir);
+        batchErrorsResponse = getFile(batchErrorsResponseDir);
         unrecognizedError = getFile(unrecognizedErrorDir);
     }
 
@@ -48,6 +52,10 @@ private String getFile(String resourcePath) throws IOException {
     void testDeserializeHttpBadRequestException() throws IOException {
         testDeserialize(errorsResponse, HttpBadRequestException.class);
     }
+    @Test
+    void testDeserializeHttpBatchBadRequestException() throws IOException {
+        testDeserialize(batchErrorsResponse, HttpBatchBadRequestException.class);
+    }
 
     @Test
     void testDeserializeHttpException() throws IOException {

src/test/java/com/crowdin/client/sourcestrings/SourceStringsApiTest.java

@@ -1,5 +1,6 @@
 package com.crowdin.client.sourcestrings;
 
+import com.crowdin.client.core.http.exceptions.HttpBatchBadRequestException;
 import com.crowdin.client.core.model.PatchOperation;
 import com.crowdin.client.core.model.PatchRequest;
 import com.crowdin.client.core.model.ResponseList;

src/test/resources/api/core/batchErrorsResponse.json

@@ -0,0 +1,36 @@
+{
+  "errors": [
+    {
+      "index": 0,
+      "errors": [
+        {
+          "error": {
+            "key": "identifier",
+            "errors": [
+              {
+                "code": "notUnique",
+                "message": "Invalid identifier given. Identifier must be unique"
+              }
+            ]
+          }
+        }
+      ]
+    },
+    {
+      "index": 2,
+      "errors": [
+        {
+          "error": {
+            "key": "identifier",
+            "errors": [
+              {
+                "code": "notUnique",
+                "message": "Invalid identifier given. Identifier must be unique"
+              }
+            ]
+          }
+        }
+      ]
+    }
+  ]
+}

src/test/resources/api/strings/stringBatchOperationsErrorRequest.json

@@ -0,0 +1,28 @@
+[
+  {
+    "op": "add",
+    "path": "/-",
+    "value": {
+      "text": "new added string",
+      "identifier": "a.b.c",
+      "context": "context for new string",
+      "fileId": 5,
+      "isHidden": false
+    }
+  },
+  {
+    "op": "remove",
+    "path": "/2815"
+  },
+  {
+    "op": "add",
+    "path": "/-",
+    "value": {
+      "text": "new added string",
+      "identifier": "a.b.c",
+      "context": "context for new string",
+      "fileId": 5,
+      "isHidden": false
+    }
+  }
+]