diff options
Diffstat (limited to 'v3po/translate-utils/src/main/java/io/fd/honeycomb/v3po/translate/util/JsonUtils.java')
-rw-r--r-- | v3po/translate-utils/src/main/java/io/fd/honeycomb/v3po/translate/util/JsonUtils.java | 102 |
1 files changed, 0 insertions, 102 deletions
diff --git a/v3po/translate-utils/src/main/java/io/fd/honeycomb/v3po/translate/util/JsonUtils.java b/v3po/translate-utils/src/main/java/io/fd/honeycomb/v3po/translate/util/JsonUtils.java deleted file mode 100644 index d9798d07d..000000000 --- a/v3po/translate-utils/src/main/java/io/fd/honeycomb/v3po/translate/util/JsonUtils.java +++ /dev/null @@ -1,102 +0,0 @@ -/* - * Copyright (c) 2016 Cisco and/or its affiliates. - * - * 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. - */ - -package io.fd.honeycomb.v3po.translate.util; - -import com.google.common.base.Charsets; -import com.google.gson.stream.JsonReader; -import com.google.gson.stream.JsonWriter; -import java.io.IOException; -import java.io.InputStream; -import java.io.InputStreamReader; -import java.io.OutputStream; -import java.io.OutputStreamWriter; -import javax.annotation.Nonnull; -import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier; -import org.opendaylight.yangtools.yang.data.api.schema.ContainerNode; -import org.opendaylight.yangtools.yang.data.api.schema.DataContainerChild; -import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode; -import org.opendaylight.yangtools.yang.data.api.schema.stream.NormalizedNodeStreamWriter; -import org.opendaylight.yangtools.yang.data.api.schema.stream.NormalizedNodeWriter; -import org.opendaylight.yangtools.yang.data.codec.gson.JSONCodecFactory; -import org.opendaylight.yangtools.yang.data.codec.gson.JSONNormalizedNodeStreamWriter; -import org.opendaylight.yangtools.yang.data.codec.gson.JsonParserStream; -import org.opendaylight.yangtools.yang.data.codec.gson.JsonWriterFactory; -import org.opendaylight.yangtools.yang.data.impl.schema.Builders; -import org.opendaylight.yangtools.yang.data.impl.schema.ImmutableNormalizedNodeStreamWriter; -import org.opendaylight.yangtools.yang.data.impl.schema.builder.api.DataContainerNodeAttrBuilder; -import org.opendaylight.yangtools.yang.model.api.SchemaContext; -import org.opendaylight.yangtools.yang.model.api.SchemaPath; - -public final class JsonUtils { - - private JsonUtils() {} - - /** - * Serialize normalized node root structure into provided output stream - * - * @throws IOException if serialized data cannot be written into provided output stream - */ - public static void writeJsonRoot(@Nonnull final NormalizedNode<?, ?> rootData, - @Nonnull final SchemaContext schemaContext, - @Nonnull final OutputStream outputStream) throws IOException { - final JsonWriter - jsonWriter = createJsonWriter(outputStream, true); - final NormalizedNodeStreamWriter streamWriter = JSONNormalizedNodeStreamWriter - .createNestedWriter(JSONCodecFactory.create(schemaContext), SchemaPath.ROOT, null, jsonWriter); - final NormalizedNodeWriter normalizedNodeWriter = - NormalizedNodeWriter.forStreamWriter(streamWriter, true); - jsonWriter.beginObject(); - writeChildren(normalizedNodeWriter,(ContainerNode) rootData); - jsonWriter.endObject(); - jsonWriter.flush(); - } - - /** - * Read json serialized normalized node root structure and parse them into normalized nodes - * - * @return artificial normalized node holding all the top level nodes from provided stream as children. In case - * the stream is empty, empty artificial normalized node is returned - * - * @throws IllegalArgumentException if content in the provided input stream is not restore-able - */ - public static ContainerNode readJsonRoot(@Nonnull final SchemaContext schemaContext, - @Nonnull final InputStream stream) { - final DataContainerNodeAttrBuilder<YangInstanceIdentifier.NodeIdentifier, ContainerNode> builder = - Builders.containerBuilder().withNodeIdentifier(new YangInstanceIdentifier.NodeIdentifier(schemaContext.getQName())); - final NormalizedNodeStreamWriter writer = ImmutableNormalizedNodeStreamWriter.from(builder); - - final JsonParserStream jsonParser = JsonParserStream.create(writer, schemaContext); - final JsonReader reader = new JsonReader(new InputStreamReader(stream, Charsets.UTF_8)); - jsonParser.parse(reader); - - return builder.build(); - } - - private static void writeChildren(final NormalizedNodeWriter nnWriter, final ContainerNode data) throws IOException { - for(final DataContainerChild<? extends YangInstanceIdentifier.PathArgument, ?> child : data.getValue()) { - nnWriter.write(child); - } - } - - private static JsonWriter createJsonWriter(final OutputStream entityStream, boolean prettyPrint) { - if (prettyPrint) { - return JsonWriterFactory.createJsonWriter(new OutputStreamWriter(entityStream, Charsets.UTF_8), 2); - } else { - return JsonWriterFactory.createJsonWriter(new OutputStreamWriter(entityStream, Charsets.UTF_8)); - } - } -} |