| // |
| // Licensed to the Apache Software Foundation (ASF) under one |
| // or more contributor license agreements. See the NOTICE file |
| // distributed with this work for additional information |
| // regarding copyright ownership. The ASF licenses this file |
| // to you 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. |
| // |
| |
| package com.cloud.utils.rest; |
| |
| import static org.hamcrest.MatcherAssert.assertThat; |
| import static org.hamcrest.Matchers.equalTo; |
| import static org.hamcrest.Matchers.notNullValue; |
| import static org.mockito.Matchers.any; |
| import static org.mockito.Mockito.mock; |
| import static org.mockito.Mockito.verify; |
| import static org.mockito.Mockito.when; |
| |
| import java.lang.reflect.Type; |
| import java.util.HashMap; |
| import java.util.List; |
| import java.util.Map; |
| |
| import com.fasterxml.jackson.databind.ObjectMapper; |
| import com.fasterxml.jackson.databind.type.CollectionType; |
| import org.apache.commons.lang.builder.EqualsBuilder; |
| import org.apache.commons.lang.builder.HashCodeBuilder; |
| import org.apache.http.HttpEntity; |
| import org.apache.http.HttpHost; |
| import org.apache.http.HttpRequest; |
| import org.apache.http.ProtocolVersion; |
| import org.apache.http.client.methods.CloseableHttpResponse; |
| import org.apache.http.client.protocol.HttpClientContext; |
| import org.apache.http.entity.StringEntity; |
| import org.apache.http.impl.client.CloseableHttpClient; |
| import org.apache.http.message.BasicStatusLine; |
| import org.junit.Test; |
| |
| import com.google.gson.FieldNamingPolicy; |
| import com.google.gson.Gson; |
| import com.google.gson.GsonBuilder; |
| import com.google.gson.JsonArray; |
| import com.google.gson.JsonDeserializationContext; |
| import com.google.gson.JsonDeserializer; |
| import com.google.gson.JsonElement; |
| import com.google.gson.JsonObject; |
| import com.google.gson.JsonParseException; |
| |
| public class RESTServiceConnectorTest { |
| private static final BasicStatusLine HTTP_200_STATUS_LINE = new BasicStatusLine(new ProtocolVersion("HTTP", 1, 1), 200, "OK"); |
| private static final Gson gson = new GsonBuilder().setFieldNamingPolicy(FieldNamingPolicy.LOWER_CASE_WITH_UNDERSCORES).create(); |
| private static final Map<String, String> DEFAULT_TEST_PARAMETERS = new HashMap<String, String>(); |
| static { |
| DEFAULT_TEST_PARAMETERS.put("arg1", "val1"); |
| DEFAULT_TEST_PARAMETERS.put("arg2", "val2"); |
| } |
| |
| @Test |
| public void testExecuteUpdateObject() throws Exception { |
| final TestPojo newObject = new TestPojo(); |
| newObject.setField("newValue"); |
| final String newObjectJson = gson.toJson(newObject); |
| final CloseableHttpResponse response = mock(CloseableHttpResponse.class); |
| when(response.getStatusLine()).thenReturn(HTTP_200_STATUS_LINE); |
| final CloseableHttpClient httpClient = mock(CloseableHttpClient.class); |
| when(httpClient.execute(any(HttpHost.class), any(HttpRequest.class), any(HttpClientContext.class))).thenReturn(response); |
| final RestClient restClient = new BasicRestClient(httpClient, HttpClientContext.create(), "localhost"); |
| final RESTServiceConnector connector = new RESTServiceConnector.Builder().client(restClient).build(); |
| |
| connector.executeUpdateObject(newObject, "/somepath"); |
| |
| verify(httpClient).execute(any(HttpHost.class), HttpUriRequestMethodMatcher.aMethod("PUT"), any(HttpClientContext.class)); |
| verify(httpClient).execute(any(HttpHost.class), HttpUriRequestPayloadMatcher.aPayload(newObjectJson), any(HttpClientContext.class)); |
| } |
| |
| @Test |
| public void testExecuteUpdateObjectWithParameters() throws Exception { |
| final TestPojo newObject = new TestPojo(); |
| newObject.setField("newValue"); |
| final String newObjectJson = gson.toJson(newObject); |
| final CloseableHttpResponse response = mock(CloseableHttpResponse.class); |
| when(response.getStatusLine()).thenReturn(HTTP_200_STATUS_LINE); |
| final CloseableHttpClient httpClient = mock(CloseableHttpClient.class); |
| when(httpClient.execute(any(HttpHost.class), any(HttpRequest.class), any(HttpClientContext.class))).thenReturn(response); |
| final RestClient restClient = new BasicRestClient(httpClient, HttpClientContext.create(), "localhost"); |
| |
| final RESTServiceConnector connector = new RESTServiceConnector.Builder().client(restClient).build(); |
| |
| connector.executeUpdateObject(newObject, "/somepath", DEFAULT_TEST_PARAMETERS); |
| |
| verify(httpClient).execute(any(HttpHost.class), HttpUriRequestMethodMatcher.aMethod("PUT"), any(HttpClientContext.class)); |
| verify(httpClient).execute(any(HttpHost.class), HttpUriRequestPayloadMatcher.aPayload(newObjectJson), any(HttpClientContext.class)); |
| verify(httpClient).execute(any(HttpHost.class), HttpUriRequestQueryMatcher.aQueryThatContains("arg2=val2"), any(HttpClientContext.class)); |
| verify(httpClient).execute(any(HttpHost.class), HttpUriRequestQueryMatcher.aQueryThatContains("arg1=val1"), any(HttpClientContext.class)); |
| } |
| |
| @Test |
| public void testExecuteCreateObject() throws Exception { |
| final TestPojo newObject = new TestPojo(); |
| newObject.setField("newValue"); |
| final String newObjectJson = gson.toJson(newObject); |
| final CloseableHttpResponse response = mock(CloseableHttpResponse.class); |
| when(response.getEntity()).thenReturn(new StringEntity(newObjectJson)); |
| when(response.getStatusLine()).thenReturn(HTTP_200_STATUS_LINE); |
| final CloseableHttpClient httpClient = mock(CloseableHttpClient.class); |
| when(httpClient.execute(any(HttpHost.class), any(HttpRequest.class), any(HttpClientContext.class))).thenReturn(response); |
| final RestClient restClient = new BasicRestClient(httpClient, HttpClientContext.create(), "localhost"); |
| final RESTServiceConnector connector = new RESTServiceConnector.Builder().client(restClient).build(); |
| |
| final TestPojo object = connector.executeCreateObject(newObject, "/somepath"); |
| |
| assertThat(object, notNullValue()); |
| assertThat(object, equalTo(newObject)); |
| verify(httpClient).execute(any(HttpHost.class), HttpUriRequestMethodMatcher.aMethod("POST"), any(HttpClientContext.class)); |
| verify(httpClient).execute(any(HttpHost.class), HttpUriRequestPayloadMatcher.aPayload(newObjectJson), any(HttpClientContext.class)); |
| verify(response).close(); |
| } |
| |
| @Test |
| public void testExecuteCreateObjectWithParameters() throws Exception { |
| final TestPojo newObject = new TestPojo(); |
| newObject.setField("newValue"); |
| final String newObjectJson = gson.toJson(newObject); |
| final CloseableHttpResponse response = mock(CloseableHttpResponse.class); |
| when(response.getEntity()).thenReturn(new StringEntity(newObjectJson)); |
| when(response.getStatusLine()).thenReturn(HTTP_200_STATUS_LINE); |
| final CloseableHttpClient httpClient = mock(CloseableHttpClient.class); |
| when(httpClient.execute(any(HttpHost.class), any(HttpRequest.class), any(HttpClientContext.class))).thenReturn(response); |
| final RestClient restClient = new BasicRestClient(httpClient, HttpClientContext.create(), "localhost"); |
| final RESTServiceConnector connector = new RESTServiceConnector.Builder().client(restClient).build(); |
| |
| final TestPojo object = connector.executeCreateObject(newObject, "/somepath", DEFAULT_TEST_PARAMETERS); |
| |
| assertThat(object, notNullValue()); |
| assertThat(object, equalTo(newObject)); |
| verify(httpClient).execute(any(HttpHost.class), HttpUriRequestMethodMatcher.aMethod("POST"), any(HttpClientContext.class)); |
| verify(httpClient).execute(any(HttpHost.class), HttpUriRequestPayloadMatcher.aPayload(newObjectJson), any(HttpClientContext.class)); |
| verify(httpClient).execute(any(HttpHost.class), HttpUriRequestQueryMatcher.aQueryThatContains("arg2=val2"), any(HttpClientContext.class)); |
| verify(httpClient).execute(any(HttpHost.class), HttpUriRequestQueryMatcher.aQueryThatContains("arg1=val1"), any(HttpClientContext.class)); |
| verify(response).close(); |
| } |
| |
| @Test |
| public void testExecuteDeleteObject() throws Exception { |
| final HttpEntity entity = mock(HttpEntity.class); |
| final CloseableHttpResponse response = mock(CloseableHttpResponse.class); |
| when(response.getEntity()).thenReturn(entity); |
| when(response.getStatusLine()).thenReturn(HTTP_200_STATUS_LINE); |
| final CloseableHttpClient httpClient = mock(CloseableHttpClient.class); |
| when(httpClient.execute(any(HttpHost.class), any(HttpRequest.class), any(HttpClientContext.class))).thenReturn(response); |
| final RestClient restClient = new BasicRestClient(httpClient, HttpClientContext.create(), "localhost"); |
| final RESTServiceConnector connector = new RESTServiceConnector.Builder().client(restClient).build(); |
| |
| connector.executeDeleteObject("/somepath"); |
| |
| verify(httpClient).execute(any(HttpHost.class), HttpUriRequestMethodMatcher.aMethod("DELETE"), any(HttpClientContext.class)); |
| verify(response).close(); |
| } |
| |
| @Test |
| public void testExecuteRetrieveObject() throws Exception { |
| final TestPojo existingObject = new TestPojo(); |
| existingObject.setField("existingValue"); |
| final String newObjectJson = gson.toJson(existingObject); |
| final CloseableHttpResponse response = mock(CloseableHttpResponse.class); |
| when(response.getEntity()).thenReturn(new StringEntity(newObjectJson)); |
| when(response.getStatusLine()).thenReturn(HTTP_200_STATUS_LINE); |
| final CloseableHttpClient httpClient = mock(CloseableHttpClient.class); |
| when(httpClient.execute(any(HttpHost.class), any(HttpRequest.class), any(HttpClientContext.class))).thenReturn(response); |
| final RestClient restClient = new BasicRestClient(httpClient, HttpClientContext.create(), "localhost"); |
| final RESTServiceConnector connector = new RESTServiceConnector.Builder().client(restClient).build(); |
| |
| final TestPojo object = connector.executeRetrieveObject(TestPojo.class, "/somepath"); |
| |
| assertThat(object, notNullValue()); |
| assertThat(object, equalTo(existingObject)); |
| verify(httpClient).execute(any(HttpHost.class), HttpUriRequestMethodMatcher.aMethod("GET"), any(HttpClientContext.class)); |
| verify(response).close(); |
| } |
| |
| @Test |
| public void testExecuteRetrieveObjectWithParameters() throws Exception { |
| final TestPojo existingObject = new TestPojo(); |
| existingObject.setField("existingValue"); |
| final String newObjectJson = gson.toJson(existingObject); |
| final CloseableHttpResponse response = mock(CloseableHttpResponse.class); |
| when(response.getEntity()).thenReturn(new StringEntity(newObjectJson)); |
| when(response.getStatusLine()).thenReturn(HTTP_200_STATUS_LINE); |
| final CloseableHttpClient httpClient = mock(CloseableHttpClient.class); |
| when(httpClient.execute(any(HttpHost.class), any(HttpRequest.class), any(HttpClientContext.class))).thenReturn(response); |
| final RestClient restClient = new BasicRestClient(httpClient, HttpClientContext.create(), "localhost"); |
| final RESTServiceConnector connector = new RESTServiceConnector.Builder().client(restClient).build(); |
| |
| final TestPojo object = connector.executeRetrieveObject(TestPojo.class, "/somepath", DEFAULT_TEST_PARAMETERS); |
| |
| assertThat(object, notNullValue()); |
| assertThat(object, equalTo(existingObject)); |
| verify(httpClient).execute(any(HttpHost.class), HttpUriRequestMethodMatcher.aMethod("GET"), any(HttpClientContext.class)); |
| verify(httpClient).execute(any(HttpHost.class), HttpUriRequestQueryMatcher.aQueryThatContains("arg2=val2"), any(HttpClientContext.class)); |
| verify(httpClient).execute(any(HttpHost.class), HttpUriRequestQueryMatcher.aQueryThatContains("arg1=val1"), any(HttpClientContext.class)); |
| verify(response).close(); |
| } |
| |
| @Test(expected = JsonParseException.class) |
| public void testCustomDeserializerTypeMismatch() throws Exception { |
| final CloseableHttpResponse response = mock(CloseableHttpResponse.class); |
| when(response.getStatusLine()).thenReturn(HTTP_200_STATUS_LINE); |
| when(response.getEntity()).thenReturn(new StringEntity("[{somethig_not_type : \"WrongType\"}]")); |
| final CloseableHttpClient httpClient = mock(CloseableHttpClient.class); |
| when(httpClient.execute(any(HttpHost.class), any(HttpRequest.class), any(HttpClientContext.class))).thenReturn(response); |
| final RestClient restClient = new BasicRestClient(httpClient, HttpClientContext.create(), "localhost"); |
| final RESTServiceConnector connector = new RESTServiceConnector.Builder() |
| .client(restClient) |
| .classToDeserializerEntry(TestPojo.class, new TestPojoDeserializer()) |
| .build(); |
| |
| connector.executeRetrieveObject(TestPojo.class, "/somepath"); |
| } |
| |
| @Test |
| public void testCustomDeserializerForCustomLists() throws Exception { |
| final CloseableHttpResponse response = mock(CloseableHttpResponse.class); |
| when(response.getStatusLine()).thenReturn(HTTP_200_STATUS_LINE); |
| when(response.getEntity()).thenReturn(new StringEntity("{results: [{field : \"SomeValue\"}], results_count: 1}")); |
| final CloseableHttpClient httpClient = mock(CloseableHttpClient.class); |
| when(httpClient.execute(any(HttpHost.class), any(HttpRequest.class), any(HttpClientContext.class))).thenReturn(response); |
| final RestClient restClient = new BasicRestClient(httpClient, HttpClientContext.create(), "localhost"); |
| final Class<? extends CollectionType> clazzListOfTestPojo = new ObjectMapper().getTypeFactory().constructCollectionType(List.class, TestPojo.class).getClass(); |
| final RESTServiceConnector connector = new RESTServiceConnector.Builder() |
| .client(restClient) |
| .classToDeserializerEntry(clazzListOfTestPojo, new CustomListDeserializer<TestPojoDeserializer>()) |
| .build(); |
| |
| connector.executeRetrieveObject(TestPojo.class, "/somepath"); |
| } |
| |
| class NiciraList<T> { |
| private List<T> results; |
| private int resultCount; |
| |
| public List<T> getResults() { |
| return results; |
| } |
| |
| public void setResults(final List<T> results) { |
| this.results = results; |
| } |
| |
| public int getResultCount() { |
| return resultCount; |
| } |
| |
| public void setResultCount(final int resultCount) { |
| this.resultCount = resultCount; |
| } |
| |
| } |
| |
| class TestPojo { |
| private String field; |
| |
| public String getField() { |
| return field; |
| } |
| |
| public void setField(final String field) { |
| this.field = field; |
| } |
| |
| @Override |
| public int hashCode() { |
| return HashCodeBuilder.reflectionHashCode(this); |
| } |
| |
| @Override |
| public boolean equals(final Object obj) { |
| return EqualsBuilder.reflectionEquals(this, obj); |
| } |
| |
| } |
| |
| private final class TestPojoDeserializer implements JsonDeserializer<TestPojo> { |
| @Override |
| public TestPojo deserialize(final JsonElement json, final Type typeOfT, final JsonDeserializationContext context) throws JsonParseException { |
| final JsonObject jsonObject = json.getAsJsonObject(); |
| |
| if (!jsonObject.has("type")) { |
| throw new JsonParseException("Deserializing as a TestPojo, but no type present in the json object"); |
| } |
| |
| return context.deserialize(jsonObject, TestPojo.class); |
| } |
| } |
| |
| private final class CustomListDeserializer<T> implements JsonDeserializer<T> { |
| private final Gson standardGson = new GsonBuilder().create(); |
| |
| @Override |
| public T deserialize(final JsonElement json, final Type typeOfT, final JsonDeserializationContext context) throws JsonParseException { |
| final JsonObject jsonObject = json.getAsJsonObject(); |
| |
| System.err.println(json.toString()); |
| |
| if (jsonObject.has("results")) { |
| final JsonArray results = jsonObject.getAsJsonArray("results"); |
| return context.deserialize(results, typeOfT); |
| } else { |
| return standardGson.fromJson(jsonObject, typeOfT); |
| } |
| } |
| } |
| } |