Examples with JsonNode org.apache.flink.shaded.jackson2.com.fasterxml.jackson.databind.JsonNode used on opensource projects

Example 26 with JsonNode

use of org.apache.flink.shaded.jackson2.com.fasterxml.jackson.databind.JsonNode in project textdb by TextDB.

the class TestUtils method testJsonSerialization.

public static JsonNode testJsonSerialization(Object object, boolean printResults) {
    try {
        ObjectMapper objectMapper = new ObjectMapper();
        String json = objectMapper.writeValueAsString(object);
        Object resultObject = objectMapper.readValue(json, object.getClass());
        String resultJson = objectMapper.writeValueAsString(resultObject);
        JsonNode jsonNode = objectMapper.readValue(json, JsonNode.class);
        JsonNode resultJsonNode = objectMapper.readValue(resultJson, JsonNode.class);
        if (printResults) {
            System.out.println(resultJson);
        }
        Assert.assertEquals(jsonNode, resultJsonNode);
        return jsonNode;
    } catch (IOException e) {
        throw new TextDBException(e);
    }
}

Example 27 with JsonNode

use of org.apache.flink.shaded.jackson2.com.fasterxml.jackson.databind.JsonNode in project textdb by TextDB.

the class PlanStore method addPlan.

/**
     * Adds a Logical Plan JSON to the plan store.
     *
     * @param planName, the name of the plan.
     * @param description, the description of the plan.
     * @param logicalPlanJson, the logical plan JSON string
     * @Return IDField, the id field of the plan stored.
     * @throws TextDBException, when there are null fields or the given name is invalid or there is an existing plan with same name.
     */
public IDField addPlan(String planName, String description, String logicalPlanJson) throws TextDBException {
    if (planName == null || description == null || logicalPlanJson == null) {
        throw new TextDBException("Arguments cannot be null when adding a plan");
    }
    if (!PlanStoreConstants.VALID_PLAN_NAME.matcher(planName).find()) {
        throw new TextDBException("Plan name is not valid. It can only contain alphanumeric characters, " + "underscore, and hyphen.");
    }
    if (getPlan(planName) != null) {
        throw new TextDBException("A plan with the same name already exists");
    }
    try {
        // Converting the JSON String to a JSON Node to minimize space usage and to check validity of JSON string
        ObjectMapper objectMapper = new ObjectMapper();
        JsonNode jsonNode = objectMapper.readValue(logicalPlanJson, JsonNode.class);
        logicalPlanJson = objectMapper.writeValueAsString(jsonNode);
    } catch (IOException e) {
        throw new StorageException("logical plan json is an invalid json string: " + logicalPlanJson);
    }
    Tuple tuple = new Tuple(PlanStoreConstants.SCHEMA_PLAN, new StringField(planName), new StringField(description), new StringField(logicalPlanJson));
    DataWriter dataWriter = relationManager.getTableDataWriter(PlanStoreConstants.TABLE_NAME);
    dataWriter.open();
    IDField id = dataWriter.insertTuple(tuple);
    dataWriter.close();
    return id;
}

Example 28 with JsonNode

use of org.apache.flink.shaded.jackson2.com.fasterxml.jackson.databind.JsonNode in project textdb by TextDB.

the class PlanStore method updatePlanInternal.

/**
     * Updates both plan description and plan json of a plan with the given plan name.
     * If description is null, it will not update plan description.
     * If plan json is NULL, it will not update the plan's JSON file.
     *
     * @param planName, the name of the plan.
     * @param description, the new description of the plan.
     * @param logicalPlanJson, the new plan json string.
     * @throws TextDBException
     */
private void updatePlanInternal(String planName, String description, String logicalPlanJson) throws TextDBException {
    Tuple existingPlan = getPlan(planName);
    if (existingPlan == null) {
        return;
    }
    // Checking if an updated description or logical plan JSON string has been provided
    if (description == null && logicalPlanJson == null) {
        return;
    }
    // Checking if the logical plan JSON string needs to be updated
    if (logicalPlanJson != null) {
        // Compressing and checking the validity of the logical plan JSON string
        try {
            ObjectMapper objectMapper = new ObjectMapper();
            JsonNode jsonNode = objectMapper.readValue(logicalPlanJson, JsonNode.class);
            logicalPlanJson = objectMapper.writeValueAsString(jsonNode);
        } catch (IOException e) {
            throw new StorageException("logical plan json is an invalid json string: " + logicalPlanJson);
        }
    }
    // Getting the fields in order for performing the update
    IDField idField = (IDField) existingPlan.getField(SchemaConstants._ID);
    IField descriptionField = description != null ? new StringField(description) : existingPlan.getField(PlanStoreConstants.DESCRIPTION);
    IField logicalPlanJsonField = logicalPlanJson != null ? new StringField(logicalPlanJson) : existingPlan.getField(PlanStoreConstants.LOGICAL_PLAN_JSON);
    // Creating a tuple out of all the fields
    Tuple newTuple = new Tuple(PlanStoreConstants.SCHEMA_PLAN, new StringField(planName), descriptionField, logicalPlanJsonField);
    // Writing the updated tuple
    DataWriter dataWriter = relationManager.getTableDataWriter(PlanStoreConstants.TABLE_NAME);
    dataWriter.open();
    dataWriter.updateTuple(newTuple, idField);
    dataWriter.close();
}

Example 29 with JsonNode

use of org.apache.flink.shaded.jackson2.com.fasterxml.jackson.databind.JsonNode in project textdb by TextDB.

the class MedlineIndexWriter method recordToTuple.

public static Tuple recordToTuple(String record) throws IOException, ParseException {
    JsonNode jsonNode = new ObjectMapper().readValue(record, JsonNode.class);
    ArrayList<IField> fieldList = new ArrayList<IField>();
    for (Attribute attr : ATTRIBUTES_MEDLINE) {
        fieldList.add(StorageUtils.getField(attr.getAttributeType(), jsonNode.get(attr.getAttributeName()).toString()));
    }
    IField[] fieldArray = new IField[fieldList.size()];
    Tuple tuple = new Tuple(SCHEMA_MEDLINE, fieldList.toArray(fieldArray));
    return tuple;
}

Example 30 with JsonNode

use of org.apache.flink.shaded.jackson2.com.fasterxml.jackson.databind.JsonNode in project textdb by TextDB.

the class PlanStoreTest method assertPlanEquivalence.

/**
     * This function checks whether the two given logical plan JSON strings are equivalent
     * @param plan1 - The first Logical Plan JSON
     * @param plan2 - The second Logical Plan JSON
     */
public static void assertPlanEquivalence(String plan1, String plan2) {
    Assert.assertNotNull(plan1);
    Assert.assertNotNull(plan2);
    try {
        ObjectMapper objectMapper = new ObjectMapper();
        JsonNode jsonNode1 = objectMapper.readValue(plan1, JsonNode.class);
        JsonNode jsonNode2 = objectMapper.readValue(plan2, JsonNode.class);
        Assert.assertEquals(jsonNode1, jsonNode2);
    } catch (IOException e) {
        throw new RuntimeException(e);
    }
}