Java tutorial
/** * 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 org.apache.sqoop.json.util; import static org.testng.Assert.assertFalse; import static org.testng.AssertJUnit.assertEquals; import static org.testng.Assert.assertNotNull; import java.util.HashMap; import java.util.LinkedList; import java.util.List; import java.util.Map; import org.apache.commons.lang.StringUtils; import org.apache.sqoop.common.SqoopException; import org.apache.sqoop.json.JSONUtils; import org.apache.sqoop.model.InputEditable; import org.apache.sqoop.model.MBooleanInput; import org.apache.sqoop.model.MConfig; import org.apache.sqoop.model.MConfigType; import org.apache.sqoop.model.MEnumInput; import org.apache.sqoop.model.MInput; import org.apache.sqoop.model.MIntegerInput; import org.apache.sqoop.model.MLongInput; import org.apache.sqoop.model.MMapInput; import org.apache.sqoop.model.MStringInput; import org.json.simple.JSONArray; import org.json.simple.JSONObject; import org.testng.annotations.Test; /** * */ public class TestConfigSerialization { @Test public void testAllDataTypes() { // Inserted values Map<String, String> map = new HashMap<String, String>(); map.put("A", "B"); // Fill config with all values MConfig config = getConfig(); config.getStringInput("String").setValue("A"); config.getMapInput("Map").setValue(map); config.getIntegerInput("Integer").setValue(1); config.getBooleanInput("Boolean").setValue(true); config.getEnumInput("Enum").setValue("YES"); // Serialize that into JSON JSONObject jsonObject = ConfigInputSerialization.extractConfig(config, MConfigType.JOB, false); assertNotNull(jsonObject); // Exchange the data on string level String serializedJson = jsonObject.toJSONString(); JSONObject retrievedJson = JSONUtils.parse(serializedJson); // And retrieve back from JSON representation MConfig retrieved = ConfigInputSerialization.restoreConfig(retrievedJson); // Verify all expected values assertEquals("A", retrieved.getStringInput("String").getValue()); assertEquals(map, retrieved.getMapInput("Map").getValue()); assertEquals(1, (int) retrieved.getIntegerInput("Integer").getValue()); assertEquals(true, retrieved.getBooleanInput("Boolean").getValue().booleanValue()); assertEquals("YES", retrieved.getEnumInput("Enum").getValue()); } @Test public void testMapDataType() { MConfig config = getMapConfig(); // Inserted values Map<String, String> map = new HashMap<String, String>(); map.put("A", "B"); config.getMapInput("Map").setValue(map); // Serialize JSONObject jsonObject = ConfigInputSerialization.extractConfig(config, MConfigType.JOB, false); String serializedJson = jsonObject.toJSONString(); // Deserialize JSONObject retrievedJson = JSONUtils.parse(serializedJson); MConfig retrieved = ConfigInputSerialization.restoreConfig(retrievedJson); assertEquals(map, retrieved.getMapInput("Map").getValue()); } @Test(expectedExceptions = SqoopException.class) public void testMapDataTypeException() { MConfig config = getMapConfig(); // Inserted values Map<String, String> map = new HashMap<String, String>(); map.put("A", "B"); config.getMapInput("Map").setValue(map); // Serialize JSONObject jsonObject = ConfigInputSerialization.extractConfig(config, MConfigType.JOB, false); String serializedJson = jsonObject.toJSONString(); // Replace map value with a fake string to force exception String badSerializedJson = serializedJson.replace("{\"A\":\"B\"}", "\"nonsensical string\""); System.out.println(badSerializedJson); JSONObject retrievedJson = JSONUtils.parse(badSerializedJson); ConfigInputSerialization.restoreConfig(retrievedJson); } @Test public void testInputEditableOptional() { // Inserted values Map<String, String> map = new HashMap<String, String>(); map.put("A", "B"); // Fill config with all values MConfig config = getConfig(); config.getStringInput("String").setValue("A"); config.getMapInput("Map").setValue(map); config.getIntegerInput("Integer").setValue(1); config.getBooleanInput("Boolean").setValue(true); config.getEnumInput("Enum").setValue("YES"); // Serialize that into JSON JSONObject jsonObject = ConfigInputSerialization.extractConfig(config, MConfigType.JOB, false); assertNotNull(jsonObject); // Make sure editable is optional // Remove the editable JSONArray inputs = (JSONArray) jsonObject.get(ConfigInputConstants.CONFIG_INPUTS); for (int i = 0; i < inputs.size(); i++) { JSONObject input = (JSONObject) inputs.get(i); if ((input.containsKey(ConfigInputConstants.CONFIG_INPUT_EDITABLE))) { input.remove(ConfigInputConstants.CONFIG_INPUT_EDITABLE); } } // Exchange the data on string level String serializedJson = jsonObject.toJSONString(); JSONObject retrievedJson = JSONUtils.parse(serializedJson); // Make sure editable isn't part of the JSON inputs = (JSONArray) retrievedJson.get(ConfigInputConstants.CONFIG_INPUTS); for (int i = 0; i < inputs.size(); i++) { JSONObject input = (JSONObject) inputs.get(i); assertFalse(input.containsKey(ConfigInputConstants.CONFIG_INPUT_EDITABLE)); } // And retrieve back from JSON representation MConfig retrieved = ConfigInputSerialization.restoreConfig(retrievedJson); // Verify all expected values assertEquals("A", retrieved.getStringInput("String").getValue()); assertEquals(map, retrieved.getMapInput("Map").getValue()); assertEquals(1, (int) retrieved.getIntegerInput("Integer").getValue()); assertEquals(true, retrieved.getBooleanInput("Boolean").getValue().booleanValue()); assertEquals("YES", retrieved.getEnumInput("Enum").getValue()); } protected MConfig getMapConfig() { List<MInput<?>> inputs; MInput input; inputs = new LinkedList<MInput<?>>(); input = new MMapInput("Map", false, InputEditable.ANY, StringUtils.EMPTY); inputs.add(input); return new MConfig("c", inputs); } /** * Return config with all data types. * * @return */ protected MConfig getConfig() { List<MInput<?>> inputs; MInput<?> input; inputs = new LinkedList<MInput<?>>(); input = new MStringInput("String", false, InputEditable.ANY, StringUtils.EMPTY, (short) 30); inputs.add(input); input = new MMapInput("Map", false, InputEditable.ANY, StringUtils.EMPTY); inputs.add(input); input = new MIntegerInput("Integer", false, InputEditable.ANY, StringUtils.EMPTY); inputs.add(input); input = new MLongInput("Long", false, InputEditable.ANY, StringUtils.EMPTY); inputs.add(input); input = new MBooleanInput("Boolean", false, InputEditable.ANY, StringUtils.EMPTY); inputs.add(input); input = new MEnumInput("Enum", false, InputEditable.ANY, StringUtils.EMPTY, new String[] { "YES", "NO" }); inputs.add(input); return new MConfig("c", inputs); } }