Example usage for com.google.gson.stream JsonReader nextString

List of usage examples for com.google.gson.stream JsonReader nextString

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Introduction

In this page you can find the example usage for com.google.gson.stream JsonReader nextString.

Prototype

public String nextString() throws IOException

Source Link

Document

Returns the com.google.gson.stream.JsonToken#STRING string value of the next token, consuming it.

Usage

From source file:org.opendaylight.netconf.sal.rest.impl.JsonToPATCHBodyReader.java

License:Open Source License

private List<PATCHEntity> read(final JsonReader in, InstanceIdentifierContext path) throws IOException {

    boolean inEdit = false;
    boolean inValue = false;
    String operation = null;/*w w w. ja v a 2s.co  m*/
    String target = null;
    String editId = null;
    List<PATCHEntity> resultCollection = new ArrayList<>();

    while (in.hasNext()) {
        switch (in.peek()) {
        case STRING:
        case NUMBER:
            in.nextString();
            break;
        case BOOLEAN:
            Boolean.toString(in.nextBoolean());
            break;
        case NULL:
            in.nextNull();
            break;
        case BEGIN_ARRAY:
            in.beginArray();
            break;
        case BEGIN_OBJECT:
            if (inEdit && operation != null & target != null & inValue) {
                //let's do the stuff - find out target node
                //                      StringInstanceIdentifierCodec codec = new StringInstanceIdentifierCodec(path
                //                               .getSchemaContext());
                //                        if (path.getInstanceIdentifier().toString().equals("/")) {
                //                        final YangInstanceIdentifier deserialized = codec.deserialize(target);
                //                        }
                DataSchemaNode targetNode = ((DataNodeContainer) (path.getSchemaNode()))
                        .getDataChildByName(target.replace("/", ""));
                if (targetNode == null) {
                    LOG.debug("Target node {} not found in path {} ", target, path.getSchemaNode());
                    throw new RestconfDocumentedException("Error parsing input", ErrorType.PROTOCOL,
                            ErrorTag.MALFORMED_MESSAGE);
                } else {

                    final NormalizedNodeResult resultHolder = new NormalizedNodeResult();
                    final NormalizedNodeStreamWriter writer = ImmutableNormalizedNodeStreamWriter
                            .from(resultHolder);

                    //keep on parsing json from place where target points
                    final JsonParserStream jsonParser = JsonParserStream.create(writer, path.getSchemaContext(),
                            path.getSchemaNode());
                    jsonParser.parse(in);

                    final YangInstanceIdentifier targetII = path.getInstanceIdentifier()
                            .node(targetNode.getQName());
                    resultCollection
                            .add(new PATCHEntity(editId, operation, targetII, resultHolder.getResult()));
                    inValue = false;

                    operation = null;
                    target = null;
                }
                in.endObject();
            } else {
                in.beginObject();
            }
            break;
        case END_DOCUMENT:
            break;
        case NAME:
            final String name = in.nextName();

            switch (name) {
            case "edit":
                inEdit = true;
                break;
            case "operation":
                operation = in.nextString();
                break;
            case "target":
                target = in.nextString();
                break;
            case "value":
                inValue = true;
                break;
            case "patch-id":
                patchId = in.nextString();
                break;
            case "edit-id":
                editId = in.nextString();
                break;
            }
            break;
        case END_OBJECT:
            in.endObject();
            break;
        case END_ARRAY:
            in.endArray();
            break;

        default:
            break;
        }
    }

    return ImmutableList.copyOf(resultCollection);
}

From source file:org.opendaylight.restconf.jersey.providers.JsonToPATCHBodyReader.java

License:Open Source License

private List<PATCHEntity> read(final JsonReader in, final InstanceIdentifierContext path) throws IOException {
    final List<PATCHEntity> resultCollection = new ArrayList<>();
    final StringModuleInstanceIdentifierCodec codec = new StringModuleInstanceIdentifierCodec(
            path.getSchemaContext());/*from   w w  w.j a v  a2  s  .c  o  m*/
    final JsonToPATCHBodyReader.PatchEdit edit = new JsonToPATCHBodyReader.PatchEdit();

    while (in.hasNext()) {
        switch (in.peek()) {
        case STRING:
        case NUMBER:
            in.nextString();
            break;
        case BOOLEAN:
            Boolean.toString(in.nextBoolean());
            break;
        case NULL:
            in.nextNull();
            break;
        case BEGIN_ARRAY:
            in.beginArray();
            break;
        case BEGIN_OBJECT:
            in.beginObject();
            break;
        case END_DOCUMENT:
            break;
        case NAME:
            parseByName(in.nextName(), edit, in, path, codec, resultCollection);
            break;
        case END_OBJECT:
            in.endObject();
            break;
        case END_ARRAY:
            in.endArray();
            break;

        default:
            break;
        }
    }

    return ImmutableList.copyOf(resultCollection);
}

From source file:org.opendaylight.restconf.jersey.providers.JsonToPATCHBodyReader.java

License:Open Source License

/**
 * Switch value of parsed JsonToken.NAME and read edit definition or patch id
 * @param name value of token//  ww  w  . j a v  a2 s  . c om
 * @param edit PatchEdit instance
 * @param in JsonReader reader
 * @param path InstanceIdentifierContext context
 * @param codec Draft11StringModuleInstanceIdentifierCodec codec
 * @param resultCollection collection of parsed edits
 * @throws IOException
 */
private void parseByName(@Nonnull final String name, @Nonnull final PatchEdit edit,
        @Nonnull final JsonReader in, @Nonnull final InstanceIdentifierContext path,
        @Nonnull final StringModuleInstanceIdentifierCodec codec,
        @Nonnull final List<PATCHEntity> resultCollection) throws IOException {
    switch (name) {
    case "edit":
        if (in.peek() == JsonToken.BEGIN_ARRAY) {
            in.beginArray();

            while (in.hasNext()) {
                readEditDefinition(edit, in, path, codec);
                resultCollection.add(prepareEditOperation(edit));
                edit.clear();
            }

            in.endArray();
        } else {
            readEditDefinition(edit, in, path, codec);
            resultCollection.add(prepareEditOperation(edit));
            edit.clear();
        }

        break;
    case "patch-id":
        this.patchId = in.nextString();
        break;
    default:
        break;
    }
}

From source file:org.opendaylight.restconf.jersey.providers.JsonToPATCHBodyReader.java

License:Open Source License

/**
 * Read one patch edit object from Json input
 * @param edit PatchEdit instance to be filled with read data
 * @param in JsonReader reader/*from  w ww.j av  a2  s.c o  m*/
 * @param path InstanceIdentifierContext path context
 * @param codec Draft11StringModuleInstanceIdentifierCodec codec
 * @throws IOException
 */
private void readEditDefinition(@Nonnull final PatchEdit edit, @Nonnull final JsonReader in,
        @Nonnull final InstanceIdentifierContext path, @Nonnull final StringModuleInstanceIdentifierCodec codec)
        throws IOException {
    final StringBuffer value = new StringBuffer();
    in.beginObject();

    while (in.hasNext()) {
        final String editDefinition = in.nextName();
        switch (editDefinition) {
        case "edit-id":
            edit.setId(in.nextString());
            break;
        case "operation":
            edit.setOperation(in.nextString());
            break;
        case "target":
            // target can be specified completely in request URI
            final String target = in.nextString();
            if (target.equals("/")) {
                edit.setTarget(path.getInstanceIdentifier());
                edit.setTargetSchemaNode(path.getSchemaContext());
            } else {
                edit.setTarget(codec.deserialize(codec.serialize(path.getInstanceIdentifier()).concat(target)));
                edit.setTargetSchemaNode(
                        SchemaContextUtil.findDataSchemaNode(path.getSchemaContext(), codec.getDataContextTree()
                                .getChild(edit.getTarget()).getDataSchemaNode().getPath().getParent()));
            }

            break;
        case "value":
            // save data defined in value node for next (later) processing, because target needs to be read
            // always first and there is no ordering in Json input
            readValueNode(value, in);
            break;
        default:
            break;
        }
    }

    in.endObject();

    // read saved data to normalized node when target schema is already known
    edit.setData(
            readEditData(new JsonReader(new StringReader(value.toString())), edit.getTargetSchemaNode(), path));
}

From source file:org.opendaylight.restconf.jersey.providers.JsonToPATCHBodyReader.java

License:Open Source License

/**
 * Parse one value object of data and saves it to buffer
 * @param value Buffer to read value object
 * @param in JsonReader reader// ww w.j  a  v  a 2  s.co  m
 * @throws IOException
 */
private void readValueObject(@Nonnull final StringBuffer value, @Nonnull final JsonReader in)
        throws IOException {
    in.beginObject();
    value.append("{");

    while (in.hasNext()) {
        value.append("\"" + in.nextName() + "\"");
        value.append(":");

        if (in.peek() == JsonToken.STRING) {
            value.append("\"" + in.nextString() + "\"");
        } else {
            if (in.peek() == JsonToken.BEGIN_ARRAY) {
                in.beginArray();
                value.append("[");

                while (in.hasNext()) {
                    readValueObject(value, in);
                    if (in.peek() != JsonToken.END_ARRAY) {
                        value.append(",");
                    }
                }

                in.endArray();
                value.append("]");
            } else {
                readValueObject(value, in);
            }
        }

        if (in.peek() != JsonToken.END_OBJECT) {
            value.append(",");
        }
    }

    in.endObject();
    value.append("}");
}

From source file:org.opendaylight.yangtools.yang.data.codec.gson.JsonParserStream.java

License:Open Source License

private void traverseAnyXmlValue(final JsonReader in, final Document doc, final Element parentElement)
        throws IOException {
    switch (in.peek()) {
    case STRING:/*from  ww  w. j  a v  a 2  s  .  co m*/
    case NUMBER:
        Text textNode = doc.createTextNode(in.nextString());
        parentElement.appendChild(textNode);
        break;
    case BOOLEAN:
        textNode = doc.createTextNode(Boolean.toString(in.nextBoolean()));
        parentElement.appendChild(textNode);
        break;
    case NULL:
        in.nextNull();
        textNode = doc.createTextNode("null");
        parentElement.appendChild(textNode);
        break;
    case BEGIN_ARRAY:
        in.beginArray();
        while (in.hasNext()) {
            final Element childElement = doc.createElement(ANYXML_ARRAY_ELEMENT_ID);
            parentElement.appendChild(childElement);
            traverseAnyXmlValue(in, doc, childElement);
        }
        in.endArray();
        break;
    case BEGIN_OBJECT:
        in.beginObject();
        while (in.hasNext()) {
            final Element childElement = doc.createElement(in.nextName());
            parentElement.appendChild(childElement);
            traverseAnyXmlValue(in, doc, childElement);
        }
        in.endObject();
    case END_DOCUMENT:
    case NAME:
    case END_OBJECT:
    case END_ARRAY:
        break;
    }
}

From source file:org.opendaylight.yangtools.yang.data.codec.gson.JsonParserStream.java

License:Open Source License

public void read(final JsonReader in, AbstractNodeDataWithSchema parent) throws IOException {
    switch (in.peek()) {
    case STRING://from   ww  w. j  av  a 2  s  .  c om
    case NUMBER:
        setValue(parent, in.nextString());
        break;
    case BOOLEAN:
        setValue(parent, Boolean.toString(in.nextBoolean()));
        break;
    case NULL:
        in.nextNull();
        setValue(parent, null);
        break;
    case BEGIN_ARRAY:
        in.beginArray();
        while (in.hasNext()) {
            if (parent instanceof LeafNodeDataWithSchema) {
                read(in, parent);
            } else {
                final AbstractNodeDataWithSchema newChild = newArrayEntry(parent);
                read(in, newChild);
            }
        }
        in.endArray();
        return;
    case BEGIN_OBJECT:
        final Set<String> namesakes = new HashSet<>();
        in.beginObject();
        /*
         * This allows parsing of incorrectly /as showcased/
         * in testconf nesting of list items - eg.
         * lists with one value are sometimes serialized
         * without wrapping array.
         *
         */
        if (isArray(parent)) {
            parent = newArrayEntry(parent);
        }
        while (in.hasNext()) {
            final String jsonElementName = in.nextName();
            DataSchemaNode parentSchema = parent.getSchema();
            if (parentSchema instanceof YangModeledAnyXmlSchemaNode) {
                parentSchema = ((YangModeledAnyXmlSchemaNode) parentSchema).getSchemaOfAnyXmlData();
            }
            final NamespaceAndName namespaceAndName = resolveNamespace(jsonElementName, parentSchema);
            final String localName = namespaceAndName.getName();
            addNamespace(namespaceAndName.getUri());
            if (namesakes.contains(jsonElementName)) {
                throw new JsonSyntaxException("Duplicate name " + jsonElementName + " in JSON input.");
            }
            namesakes.add(jsonElementName);

            final Deque<DataSchemaNode> childDataSchemaNodes = ParserStreamUtils
                    .findSchemaNodeByNameAndNamespace(parentSchema, localName, getCurrentNamespace());
            if (childDataSchemaNodes.isEmpty()) {
                throw new IllegalStateException("Schema for node with name " + localName + " and namespace "
                        + getCurrentNamespace() + " doesn't exist.");
            }

            final AbstractNodeDataWithSchema newChild = ((CompositeNodeDataWithSchema) parent)
                    .addChild(childDataSchemaNodes);
            if (newChild instanceof AnyXmlNodeDataWithSchema) {
                readAnyXmlValue(in, (AnyXmlNodeDataWithSchema) newChild, jsonElementName);
            } else {
                read(in, newChild);
            }
            removeNamespace();
        }
        in.endObject();
        return;
    case END_DOCUMENT:
    case NAME:
    case END_OBJECT:
    case END_ARRAY:
        break;
    }
}

From source file:org.openqa.selenium.json.Json.java

License:Apache License

private static Object readValue(JsonReader in, Gson gson) throws IOException {
    switch (in.peek()) {
    case BEGIN_ARRAY:
    case BEGIN_OBJECT:
    case BOOLEAN:
    case NULL:/* w  w  w. j a v a 2 s  .  co  m*/
    case STRING:
        return gson.fromJson(in, Object.class);

    case NUMBER:
        String number = in.nextString();
        if (number.indexOf('.') != -1) {
            return Double.parseDouble(number);
        }
        return Long.parseLong(number);

    default:
        throw new JsonParseException("Unexpected type: " + in.peek());
    }
}

From source file:org.openstreetmap.josm.plugins.openstreetcam.service.photo.adapter.ReaderUtil.java

License:LGPL

static String readString(final JsonReader reader) throws IOException {
    String value = null;//from w ww  .  j  a v  a 2 s  . c  o m
    if (reader.peek() == JsonToken.NULL) {
        reader.nextNull();
    } else {
        value = reader.nextString();
    }
    return value;
}