Package com.impetus.kundera.metadata.model

Examples of com.impetus.kundera.metadata.model.EntityMetadata

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    }

    @Override
    public Object find(Class entityClass, Object key)
    {
        EntityMetadata m = KunderaMetadataManager.getEntityMetadata(kunderaMetadata, entityClass);
        DummySchema schema = DummyDatabase.INSTANCE.getSchema(m.getSchema());
        if (schema == null)
            return null;

        DummyTable table = schema.getTable(m.getTableName());

        if (table == null)
            return null;

        return table.getRecord(key);
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    @Override
    public void delete(Object entity, Object pKey)
    {
        if (entity == null)
            return;
        EntityMetadata m = KunderaMetadataManager.getEntityMetadata(kunderaMetadata,  entity.getClass());
        DummySchema schema = DummyDatabase.INSTANCE.getSchema(m.getSchema());
        if (schema == null)
            return;
        DummyTable table = schema.getTable(m.getTableName());
        if (table == null)
            return;

        table.removeRecord(pKey);
    }
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     */
    private <X extends Class, T extends Object> void validateEntityAttribute(String fieldname, Object validationObject,
            String message)
    {

        EntityMetadata entityMetadata = KunderaMetadataManager.getEntityMetadata(kunderaMetadata,
                validationObject.getClass());
        MetaModelBuilder<X, T> metaModelBuilder = kunderaMetadata.getApplicationMetadata().getMetaModelBuilder(
                entityMetadata.getPersistenceUnit());
        EntityType entityType = (EntityType) metaModelBuilder.getManagedTypes().get(entityMetadata.getEntityClazz());

        Field field = (Field) entityType.getAttribute(fieldname).getJavaMember();

        try
        {
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    }

    @Test
    public void test()
    {
        EntityMetadata entityMetadata = KunderaMetadataManager.getEntityMetadata(kunderaMetadata,
                SingularEntityEmbeddable.class);
        Assert.assertNotNull(entityMetadata);
        entityMetadata = KunderaMetadataManager.getEntityMetadata(kunderaMetadata, persistenceUnit,
                SingularEntityEmbeddable.class);
        Assert.assertNotNull(entityMetadata);
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        }

        if (!needsSpecialAttention)
            return -1;

        EntityMetadata m = getEntityMetadata();
        Metamodel metaModel = kunderaMetadata.getApplicationMetadata().getMetamodel(m.getPersistenceUnit());
        Queue filterClauseQueue = kunderaQuery.getFilterClauseQueue();
        BasicDBObject query = createMongoQuery(m, filterClauseQueue);

        BasicDBObject update = new BasicDBObject();
        for (UpdateClause c : kunderaQuery.getUpdateClauseQueue())
        {
            String columName = getColumnName(m, metaModel.entity(m.getEntityClazz()), c.getProperty());
            boolean isSpecialFunction = false;
            for (int i = 0; i < FUNCTION_KEYWORDS.length; i++)
            {

                if (c.getValue() instanceof String
                        && c.getValue().toString().toUpperCase().matches(FUNCTION_KEYWORDS[i]))
                {
                    isSpecialFunction = true;

                    if (c.getValue().toString().toUpperCase().startsWith("INCREMENT("))
                    {
                        String val = c.getValue().toString().toUpperCase();
                        val = val.substring(10, val.indexOf(")"));
                        update.put("$inc", new BasicDBObject(columName, Integer.valueOf(val)));
                    }
                    else if (c.getValue().toString().toUpperCase().startsWith("DECREMENT("))
                    {
                        String val = c.getValue().toString().toUpperCase();
                        val = val.substring(10, val.indexOf(")"));
                        update.put("$inc", new BasicDBObject(columName, -Integer.valueOf(val)));
                    }
                }
            }
            if (!isSpecialFunction)
            {
                update.put(columName, c.getValue());
            }
        }

        Client client = persistenceDelegeator.getClient(m);
        return ((MongoDBClient) client).handleUpdateFunctions(query, update, m.getTableName());
    }
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    }

    @Override
    public Iterator iterate()
    {
        EntityMetadata m = getEntityMetadata();
        Client client = persistenceDelegeator.getClient(m);
        return new ResultIterator((MongoDBClient) client, m, createMongoQuery(m, getKunderaQuery()
                .getFilterClauseQueue()), getOrderByClause(m), getKeys(m, getKunderaQuery().getResult()),
                persistenceDelegeator, getFetchSize() != null ? getFetchSize() : this.maxResult);
    }
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    @Override
    public Object find(Class entityClass, Object key)
    {
        HttpResponse response = null;
        EntityMetadata entityMetadata = KunderaMetadataManager.getEntityMetadata(kunderaMetadata, entityClass);
        MetamodelImpl metaModel = (MetamodelImpl) kunderaMetadata.getApplicationMetadata().getMetamodel(
                entityMetadata.getPersistenceUnit());
        try
        {
            if (key instanceof JsonElement)
            {
                key = ((JsonElement) key).getAsString();
            }
            String _id = null;
            if (metaModel.isEmbeddable(entityMetadata.getIdAttribute().getBindableJavaType()))
            {
                Field field = (Field) entityMetadata.getIdAttribute().getJavaMember();
                EmbeddableType embeddableType = metaModel.embeddable(entityMetadata.getIdAttribute()
                        .getBindableJavaType());
                _id = CouchDBObjectMapper.get_Id(field, key, embeddableType, entityMetadata.getTableName());
            }
            else
            {
                _id = entityMetadata.getTableName() + PropertyAccessorHelper.getString(key);
            }

            URI uri = new URI(CouchDBConstants.PROTOCOL, null, httpHost.getHostName(), httpHost.getPort(),
                    CouchDBConstants.URL_SAPRATOR + entityMetadata.getSchema().toLowerCase()
                            + CouchDBConstants.URL_SAPRATOR + _id, null, null);
            HttpGet get = new HttpGet(uri);
            get.addHeader("Accept", "application/json");
            response = httpClient.execute(httpHost, get, CouchDBUtils.getContext(httpHost));

            InputStream content = response.getEntity().getContent();
            Reader reader = new InputStreamReader(content);

            JsonObject jsonObject = gson.fromJson(reader, JsonObject.class);

            // Check for deleted object. if object is deleted then return null.
            if (jsonObject.get(((AbstractAttribute) entityMetadata.getIdAttribute()).getJPAColumnName()) == null)
            {
                return null;
            }

            return CouchDBObjectMapper.getEntityFromJson(entityClass, entityMetadata, jsonObject,
                    entityMetadata.getRelationNames(), kunderaMetadata);
        }
        catch (Exception e)
        {
            log.error("Error while finding object by key {}, Caused by {}.", key, e);
            throw new KunderaException(e);
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    public void delete(Object entity, Object pKey)
    {
        HttpResponse response = null;
        try
        {
            EntityMetadata entityMetadata = KunderaMetadataManager
                    .getEntityMetadata(kunderaMetadata, entity.getClass());
            MetamodelImpl metaModel = (MetamodelImpl) kunderaMetadata.getApplicationMetadata().getMetamodel(
                    entityMetadata.getPersistenceUnit());
            String _id = null;
            if (metaModel.isEmbeddable(entityMetadata.getIdAttribute().getBindableJavaType()))
            {
                Field field = (Field) entityMetadata.getIdAttribute().getJavaMember();
                EmbeddableType embeddableType = metaModel.embeddable(entityMetadata.getIdAttribute()
                        .getBindableJavaType());
                _id = CouchDBObjectMapper.get_Id(field, pKey, embeddableType, entityMetadata.getTableName());
            }
            else
            {
                _id = entityMetadata.getTableName() + PropertyAccessorHelper.getString(pKey);
            }
            URI uri = new URI(CouchDBConstants.PROTOCOL, null, httpHost.getHostName(), httpHost.getPort(),
                    CouchDBConstants.URL_SAPRATOR + entityMetadata.getSchema().toLowerCase()
                            + CouchDBConstants.URL_SAPRATOR + _id, null, null);
            HttpGet get = new HttpGet(uri);
            get.addHeader("Accept", "application/json");
            response = httpClient.execute(get);

            Reader reader = new InputStreamReader(response.getEntity().getContent());
            JsonObject json = gson.fromJson(reader, JsonObject.class);
            closeContent(response);
            if (!(response.getStatusLine().getStatusCode() == HttpStatus.SC_NOT_FOUND))
            {
                onDelete(entityMetadata.getSchema(), _id, response, json);
            }
        }
        catch (Exception e)
        {
            log.error("Error while deleting object, Caused by {}.", e);
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    public Object[] findIdsByColumn(String schemaName, String tableName, String pKeyName, String columnName,
            Object columnValue, Class entityClazz)
    {
        List foreignKeys = new ArrayList();
        HttpResponse response = null;
        EntityMetadata m = KunderaMetadataManager.getEntityMetadata(kunderaMetadata, entityClazz);
        try
        {
            String q = "key=" + CouchDBUtils.appendQuotes(columnValue);
            URI uri = new URI(CouchDBConstants.PROTOCOL, null, httpHost.getHostName(), httpHost.getPort(),
                    CouchDBConstants.URL_SAPRATOR + schemaName.toLowerCase() + CouchDBConstants.URL_SAPRATOR
                            + CouchDBConstants.DESIGN + tableName + CouchDBConstants.VIEW + columnName, q, null);
            HttpGet get = new HttpGet(uri);
            get.addHeader("Accept", "application/json");
            response = httpClient.execute(get);

            InputStream content = response.getEntity().getContent();
            Reader reader = new InputStreamReader(content);
            JsonObject json = gson.fromJson(reader, JsonObject.class);

            JsonElement jsonElement = json.get("rows");
            if (jsonElement == null)
            {
                return foreignKeys.toArray();
            }
            JsonArray array = jsonElement.getAsJsonArray();
            for (JsonElement element : array)
            {
                JsonElement value = element.getAsJsonObject().get("value").getAsJsonObject().get(pKeyName);
                if (value != null)
                {
                    foreignKeys.add(PropertyAccessorHelper.fromSourceToTargetClass(m.getIdAttribute()
                            .getBindableJavaType(), String.class, value.getAsString()));
                }
            }
        }
        catch (Exception e)
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    }

    @Override
    public List<Object> findByRelation(String colName, Object colValue, Class entityClazz)
    {
        EntityMetadata m = KunderaMetadataManager.getEntityMetadata(kunderaMetadata, entityClazz);
        Object[] ids = findIdsByColumn(m.getSchema(), m.getTableName(),
                ((AbstractAttribute) m.getIdAttribute()).getJPAColumnName(), colName, colValue, m.getEntityClazz());
        List<Object> resultSet = new ArrayList<Object>();
        if (ids != null)
        {
            for (Object id : new HashSet(Arrays.asList(ids)))
            {
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