diff options
Diffstat (limited to 'common/src')
3 files changed, 200 insertions, 0 deletions
diff --git a/common/src/main/java/org/openecomp/mso/utils/RootIgnoringJsonDeserializer.java b/common/src/main/java/org/openecomp/mso/utils/RootIgnoringJsonDeserializer.java new file mode 100644 index 0000000000..95f72c4dd4 --- /dev/null +++ b/common/src/main/java/org/openecomp/mso/utils/RootIgnoringJsonDeserializer.java @@ -0,0 +1,67 @@ +/*- + * ============LICENSE_START======================================================= + * ONAP - SO + * ================================================================================ + * Copyright (C) 2017 AT&T Intellectual Property. All rights reserved. + * ================================================================================ + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * ============LICENSE_END========================================================= + */ + +package org.openecomp.mso.utils; + +import java.io.IOException; +import java.util.Map; + +import com.fasterxml.jackson.annotation.JsonRootName; +import com.fasterxml.jackson.core.JsonParser; +import com.fasterxml.jackson.core.JsonProcessingException; +import com.fasterxml.jackson.databind.DeserializationContext; +import com.fasterxml.jackson.databind.JsonDeserializer; +import com.fasterxml.jackson.databind.JsonNode; +import com.fasterxml.jackson.databind.ObjectMapper; + +/** + * A JSON deserializer that ignores the root element if it is present. + */ +public class RootIgnoringJsonDeserializer<T> extends JsonDeserializer<T> { + + private final ObjectMapper mapper = new ObjectMapper(); + private final Class<T> clazz; + private final String jsonRootName; + + public RootIgnoringJsonDeserializer(Class<T> clazz) { + this.clazz = clazz; + + JsonRootName annotation = clazz.getAnnotation(JsonRootName.class); + + if (annotation == null || annotation.value() == null || annotation.value().equals("")) { + jsonRootName = clazz.getSimpleName(); + } else { + jsonRootName = annotation.value(); + } + } + + @Override + public T deserialize(JsonParser jp, DeserializationContext dc) + throws IOException, JsonProcessingException { + JsonNode rootNode = jp.getCodec().readTree(jp); + Map.Entry<String,JsonNode> field = rootNode.fields().next(); + + if (jsonRootName.equals(field.getKey())) { + rootNode = field.getValue(); + } + + return mapper.convertValue(rootNode, clazz); + } +}
\ No newline at end of file diff --git a/common/src/main/java/org/openecomp/mso/utils/RootIgnoringObjectMapper.java b/common/src/main/java/org/openecomp/mso/utils/RootIgnoringObjectMapper.java new file mode 100644 index 0000000000..6f3c5b7d99 --- /dev/null +++ b/common/src/main/java/org/openecomp/mso/utils/RootIgnoringObjectMapper.java @@ -0,0 +1,39 @@ +/*- + * ============LICENSE_START======================================================= + * ONAP - SO + * ================================================================================ + * Copyright (C) 2017 AT&T Intellectual Property. All rights reserved. + * ================================================================================ + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * ============LICENSE_END========================================================= + */ + +package org.openecomp.mso.utils; + +import com.fasterxml.jackson.databind.ObjectMapper; +import com.fasterxml.jackson.databind.module.SimpleModule; + +/** + * An ObjectMapper for a specific class that ignores the root element + * if it is present. + */ +public class RootIgnoringObjectMapper<T> extends ObjectMapper { + + private static final long serialVersionUID = 6812584067195377395L; + + public RootIgnoringObjectMapper(Class<T> clazz) { + SimpleModule module = new SimpleModule(); + module.addDeserializer(clazz, new RootIgnoringJsonDeserializer<T>(clazz)); + registerModule(module); + } +}
\ No newline at end of file diff --git a/common/src/test/java/org/openecomp/mso/utils/RootIgnoringObjectMapperTest.java b/common/src/test/java/org/openecomp/mso/utils/RootIgnoringObjectMapperTest.java new file mode 100644 index 0000000000..1c7e845f16 --- /dev/null +++ b/common/src/test/java/org/openecomp/mso/utils/RootIgnoringObjectMapperTest.java @@ -0,0 +1,94 @@ +/*- + * ============LICENSE_START======================================================= + * ONAP - SO + * ================================================================================ + * Copyright (C) 2018 AT&T Intellectual Property. All rights reserved. + * ================================================================================ + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * ============LICENSE_END========================================================= + */ + +package org.openecomp.mso.utils; + +import static org.junit.Assert.assertEquals; + +import org.junit.Test; + +import com.fasterxml.jackson.annotation.JsonProperty; +import com.fasterxml.jackson.annotation.JsonRootName; +import com.fasterxml.jackson.databind.ObjectMapper; + +public class RootIgnoringObjectMapperTest { + + @Test + public void someObjectWithoutRootTest() throws Exception { + ObjectMapper mapper = new RootIgnoringObjectMapper<SomeObject>(SomeObject.class); + + String content = "{" + + "\"attribute\":\"charm\"" + + "}"; + + SomeObject response = mapper.readValue(content, SomeObject.class); + assertEquals("SomeObject[attribute=charm]", response.toString()); + } + + @Test + public void someObjectWithRootTest() throws Exception { + ObjectMapper mapper = new RootIgnoringObjectMapper<SomeObject>(SomeObject.class); + + String content = "{\"SomeObject\":{" + + "\"attribute\":\"charm\"" + + "}}"; + + SomeObject response = mapper.readValue(content, SomeObject.class); + assertEquals("SomeObject[attribute=charm]", response.toString()); + } + + @Test + public void annotatedObjectWithoutRootTest() throws Exception { + ObjectMapper mapper = new RootIgnoringObjectMapper<AnnotatedObject>(AnnotatedObject.class); + + String content = "{" + + "\"attribute\":\"charm\"" + + "}"; + + AnnotatedObject response = mapper.readValue(content, AnnotatedObject.class); + assertEquals("AnnotatedObject[attribute=charm]", response.toString()); + } + + @Test + public void annotatedObjectWithRootTest() throws Exception { + ObjectMapper mapper = new RootIgnoringObjectMapper<AnnotatedObject>(AnnotatedObject.class); + + String content = "{\"annotated-object\":{" + + "\"attribute\":\"charm\"" + + "}}"; + + AnnotatedObject response = mapper.readValue(content, AnnotatedObject.class); + assertEquals("AnnotatedObject[attribute=charm]", response.toString()); + } + + public static class SomeObject { + + @JsonProperty("attribute") + private String attribute; + + public String toString() { + return getClass().getSimpleName() + "[attribute=" + attribute + "]"; + } + } + + @JsonRootName(value = "annotated-object") + public static class AnnotatedObject extends SomeObject { + } +}
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