devonfw#634: added DependencyInfoDeserializer (devonfw#641)

hohwille · Sep 20, 2024 · 57f3629 · 57f3629
1 parent 90d6b8d
commit 57f3629
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Showing 3 changed files with 75 additions and 6 deletions.
diff --git a/cli/src/main/java/com/devonfw/tools/ide/json/DependencyInfoDeserializer.java b/cli/src/main/java/com/devonfw/tools/ide/json/DependencyInfoDeserializer.java
@@ -0,0 +1,49 @@
+package com.devonfw.tools.ide.json;
+
+import java.io.IOException;
+
+import com.devonfw.tools.ide.url.model.file.json.DependencyInfo;
+import com.devonfw.tools.ide.version.VersionRange;
+import com.fasterxml.jackson.core.JacksonException;
+import com.fasterxml.jackson.core.JsonParser;
+import com.fasterxml.jackson.core.JsonToken;
+import com.fasterxml.jackson.databind.DeserializationContext;
+import com.fasterxml.jackson.databind.JsonDeserializer;
+
+/**
+ * {@link JsonDeserializer} for {@link DependencyInfo}.
+ */
+public class DependencyInfoDeserializer extends JsonDeserializer<DependencyInfo> {
+
+  @Override
+  public DependencyInfo deserialize(JsonParser p, DeserializationContext context) throws IOException, JacksonException {
+
+    JsonToken token = p.getCurrentToken();
+    if (token == JsonToken.START_OBJECT) {
+      token = p.nextToken();
+      String tool = null;
+      VersionRange versionRange = null;
+      while (token == JsonToken.FIELD_NAME) {
+        String property = p.currentName();
+        if (property.equals("tool")) {
+          token = p.nextToken();
+          assert token == JsonToken.VALUE_STRING;
+          tool = p.getValueAsString();
+        } else if (property.equals("versionRange")) {
+          token = p.nextToken();
+          assert (token == JsonToken.START_OBJECT) || (token == JsonToken.VALUE_STRING);
+          versionRange = p.readValueAs(VersionRange.class);
+        } else {
+          // ignore unknown property
+          // currently cannot log here due to https://github.com/devonfw/IDEasy/issues/404
+        }
+        token = p.nextToken();
+      }
+      if ((tool != null) && (versionRange != null)) {
+        return new DependencyInfo(tool, versionRange);
+      }
+    }
+    throw new IllegalArgumentException("Invalid JSON for DependencyInfo!");
+  }
+
+}
diff --git a/cli/src/main/java/com/devonfw/tools/ide/json/JsonMapping.java b/cli/src/main/java/com/devonfw/tools/ide/json/JsonMapping.java
@@ -1,5 +1,6 @@
 package com.devonfw.tools.ide.json;
 
+import com.devonfw.tools.ide.url.model.file.json.DependencyInfo;
 import com.devonfw.tools.ide.version.VersionIdentifier;
 import com.devonfw.tools.ide.version.VersionRange;
 import com.fasterxml.jackson.annotation.JsonInclude;
@@ -28,6 +29,7 @@ public static ObjectMapper create() {
     SimpleModule customModule = new SimpleModule();
     customModule.addDeserializer(VersionIdentifier.class, new VersionIdentifierDeserializer());
     customModule.addDeserializer(VersionRange.class, new VersionRangeDeserializer());
+    customModule.addDeserializer(DependencyInfo.class, new DependencyInfoDeserializer());
     customModule.addKeyDeserializer(VersionRange.class, new VersionRangeKeyDeserializer());
     mapper = mapper.registerModule(customModule);
     return mapper;

diff --git a/cli/src/test/java/com/devonfw/tools/ide/json/JsonMappingTest.java b/cli/src/test/java/com/devonfw/tools/ide/json/JsonMappingTest.java
@@ -5,6 +5,10 @@
 import org.assertj.core.api.Assertions;
 import org.junit.jupiter.api.Test;
 
+import com.devonfw.tools.ide.url.model.file.json.DependencyInfo;
+import com.devonfw.tools.ide.version.BoundaryType;
+import com.devonfw.tools.ide.version.VersionIdentifier;
+import com.devonfw.tools.ide.version.VersionRange;
 import com.fasterxml.jackson.databind.ObjectMapper;
 
 /**
@@ -26,12 +30,12 @@ public class JsonMappingTest extends Assertions {
   @Test
   public void testReadInstant() throws Exception {
 
-    // given
+    // arrange
     String value = INSTANT_VALUE_JSON;
-    // when
+    // act
     ObjectMapper mapper = JsonMapping.create();
     Instant instant = mapper.readValue(value, Instant.class);
-    // then
+    // assert
     assertThat(instant).isEqualTo(INSTANT_VALUE);
   }
 
@@ -43,13 +47,27 @@ public void testReadInstant() throws Exception {
   @Test
   public void testWriteInstant() throws Exception {
 
-    // given
+    // arrange
     Instant value = INSTANT_VALUE;
-    // when
+    // act
     ObjectMapper mapper = JsonMapping.create();
     String json = mapper.writeValueAsString(value);
-    // then
+    // assert
     assertThat(json).isEqualTo(INSTANT_VALUE_JSON);
   }
 
+  @Test
+  public void testReadDependencies() throws Exception {
+
+    // arrange
+    String json = "{\"tool\": \"java\",\"versionRange\": \"[11,21_35]\"}";
+    VersionRange expectedVersionRange = VersionRange.of(VersionIdentifier.of("11"), VersionIdentifier.of("21_35"), BoundaryType.CLOSED);
+    // act
+    ObjectMapper mapper = JsonMapping.create();
+    DependencyInfo dependencyInfo = mapper.readValue(json, DependencyInfo.class);
+    // assert
+    assertThat(dependencyInfo.tool()).isEqualTo("java");
+    assertThat(dependencyInfo.versionRange()).isEqualTo(expectedVersionRange);
+  }
+
 }