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

Introduction

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

Prototype

public JsonToken peek() throws IOException

Source Link

Document

Returns the type of the next token without consuming it.

Usage

From source file:one.talon.api.JSON.java

License:Apache License

@Override
public DateTime read(JsonReader in) throws IOException {
    switch (in.peek()) {
    case NULL:/* ww w.  j av  a2s .  c o m*/
        in.nextNull();
        return null;
    default:
        String date = in.nextString();
        if (date.equals("0001-01-01T00:00:00Z")) {
            // explicitly convert to ISO8601 format date in case of empty "golang" string
            date = "0001-01-01T00:00:00.000+0000";
        }
        return formatter.parseDateTime(date);
    }
}

From source file:one.talon.api.JSON.java

License:Apache License

@Override
public LocalDate read(JsonReader in) throws IOException {
    switch (in.peek()) {
    case NULL://from  ww  w . j  a v  a  2 s.  c o m
        in.nextNull();
        return null;
    default:
        String date = in.nextString();
        if (date.equals("0001-01-01T00:00:00Z")) {
            // explicitly convert to ISO8601 format date in case of empty "golang" string
            date = "0001-01-01T00:00:00.000+0000";
        }
        return formatter.parseLocalDate(date);
    }
}

From source file:ooo.oxo.moments.net.TimestampTypeAdapter.java

License:Open Source License

@Override
public Date read(JsonReader in) throws IOException {
    if (in.peek() == JsonToken.NULL) {
        in.nextNull();/*ww w. j av  a2  s  .  c  o  m*/
        return null;
    } else {
        return new Date(Long.parseLong(in.nextString()) * 1000l);
    }
}

From source file:ooo.oxo.mr.net.ColorTypeAdapter.java

License:Open Source License

@Override
public Color read(JsonReader in) throws IOException {
    if (in.peek() == JsonToken.NULL) {
        in.nextNull();/*from   w  w  w  .j av a2 s  .c  o  m*/
        return null;
    } else {
        try {
            return Color.parse(in.nextString());
        } catch (IllegalArgumentException e) {
            throw new JsonParseException(e);
        }
    }
}

From source file:org.apache.airavata.workflow.core.parser.JsonWorkflowParser.java

License:Apache License

private void readWorkflowInputs(JsonReader jsonReader) throws ParserException, IOException {
    JsonToken peek = jsonReader.peek();
    InputNode inputNode;/*from w  ww. j a  v  a2  s .  co  m*/
    NodeModel nodeModel;
    ComponentStatus status;
    String name;
    if (peek == JsonToken.NULL) {
        throw new ParserException("Error! workflow inputs can't be null");
    } else if (peek == JsonToken.BEGIN_ARRAY) {
        jsonReader.beginArray();
        while (jsonReader.hasNext()) {
            jsonReader.beginObject();
            nodeModel = new NodeModel();
            status = new ComponentStatus();
            status.setState(ComponentState.CREATED);
            status.setReason("Created");
            nodeModel.setStatus(status);
            inputNode = new InputNodeImpl(nodeModel);
            while (jsonReader.hasNext()) {
                name = jsonReader.nextName();
                if (name.equals(NAME)) {
                    nodeModel.setName(jsonReader.nextString());
                } else if (name.equals(ID)) {
                    nodeModel.setNodeId(jsonReader.nextString());
                } else if (name.equals(DATATYPE)) {
                    inputNode.setDataType(DataType.valueOf(jsonReader.nextString()));
                } else if (name.equals(DESCRIPTION)) {
                    nodeModel.setDescription(jsonReader.nextString());
                } else if (name.equals(POSITION)) {
                    readPosition(jsonReader);
                } else if (name.equals(NODE_ID)) {
                    jsonReader.skipValue();
                    //                        nodeModel.setNodeId(jsonReader.nextString());
                } else if (name.equals(DEFAULT_VALUE)) {
                    inputNode.setValue(jsonReader.nextString());
                } else {
                    jsonReader.skipValue();
                }
            }
            jsonReader.endObject();
            inputs.add(inputNode);
        }
        jsonReader.endArray();
    } else {
        throw new ParserException("Error! Unsupported value for Workflow Inputs, exptected "
                + getTokenString(JsonToken.BEGIN_OBJECT) + " but found" + getTokenString(peek));
    }
}

From source file:org.apache.airavata.workflow.core.parser.JsonWorkflowParser.java

License:Apache License

private void readWorkflowOutputs(JsonReader jsonReader) throws IOException, ParserException {
    JsonToken peek = jsonReader.peek();
    OutputNode outputNode;/*from w  ww .  j  a v a  2s .c  o m*/
    NodeModel nodeModel;
    ComponentStatus status;
    String name;
    if (peek == JsonToken.NULL) {
        throw new ParserException("Error! workflow outputs can't be null");
    } else if (peek == JsonToken.BEGIN_ARRAY) {
        jsonReader.beginArray();
        while (jsonReader.hasNext()) {
            jsonReader.beginObject();
            nodeModel = new NodeModel();
            status = new ComponentStatus();
            status.setState(ComponentState.CREATED);
            status.setReason("Created");
            nodeModel.setStatus(status);
            outputNode = new OutputNodeImpl(nodeModel);
            while (jsonReader.hasNext()) {
                name = jsonReader.nextName();
                if (name.equals(NAME)) {
                    nodeModel.setName(jsonReader.nextString());
                } else if (name.equals(ID)) {
                    nodeModel.setNodeId(jsonReader.nextString());
                } else if (name.equals(DATATYPE)) {
                    jsonReader.skipValue();
                } else if (name.equals(DESCRIPTION)) {
                    nodeModel.setDescription(jsonReader.nextString());
                } else if (name.equals(POSITION)) {
                    readPosition(jsonReader);
                } else if (name.equals(NODE_ID)) {
                    jsonReader.skipValue();
                    //                        nodeModel.setNodeId(jsonReader.nextString());
                } else if (name.equals(DEFAULT_VALUE)) {
                    jsonReader.skipValue();
                } else {
                    jsonReader.skipValue();
                }

            }
            jsonReader.endObject();
            outputs.add(outputNode);
        }
        jsonReader.endArray();
    } else {
        throw new ParserException("Error! Unsupported value for Workflow Outputs, exptected "
                + getTokenString(JsonToken.BEGIN_OBJECT) + " but found" + getTokenString(peek));
    }
}

From source file:org.apache.airavata.workflow.core.parser.JsonWorkflowParser.java

License:Apache License

private void readWorkflowLinks(JsonReader jsonReader) throws IOException, ParserException {
    JsonToken peek = jsonReader.peek();
    if (peek == JsonToken.NULL) {
        throw new ParserException(
                "Error! Workflow should have connecting links, found " + getTokenString(peek));
    } else if (peek == JsonToken.BEGIN_ARRAY) {
        jsonReader.beginArray();/*from  ww  w  . java  2s .c  om*/
        while (jsonReader.hasNext()) {
            links.add(readLink(jsonReader));
        }
        jsonReader.endArray();
    } else {
        throw new ParserException("Error! Unsupported value for workflow links, expected "
                + getTokenString(JsonToken.BEGIN_ARRAY) + " but found" + getTokenString(peek));

    }
}

From source file:org.apache.airavata.workflow.core.parser.JsonWorkflowParser.java

License:Apache License

private List<InPort> readApplicationInputs(JsonReader jsonReader) throws IOException, ParserException {
    List<InPort> inPorts = new ArrayList<>();
    JsonToken peek = jsonReader.peek();
    PortModel portModel;//  w  w w.j a  v a  2s  . co  m
    InPort inPort;
    String name;
    if (peek == JsonToken.NULL) {
        jsonReader.nextNull();
    } else if (peek == JsonToken.BEGIN_ARRAY) {
        jsonReader.beginArray();
        while (jsonReader.hasNext()) {
            portModel = new PortModel();
            inPort = new InputPortIml(portModel);
            jsonReader.beginObject();
            while (jsonReader.hasNext()) {
                name = jsonReader.nextName();
                if (name.equals(NAME)) {
                    portModel.setName(jsonReader.nextString());
                } else if (name.equals(ID)) {
                    portModel.setPortId(jsonReader.nextString());
                } else if (name.equals(DATATYPE)) {
                    jsonReader.skipValue();
                } else if (name.equals(DEFAULT_VALUE)) {
                    inPort.setDefaultValue(jsonReader.nextString());
                } else if (name.equals(DESCRIPTION)) {
                    portModel.setDescription(jsonReader.nextString());
                } else {
                    jsonReader.skipValue();
                }
            }
            jsonReader.endObject();
            inPorts.add(inPort);
        }
        jsonReader.endArray();
    } else {
        throw new ParserException(
                "Error! reading application inputs, expected " + getTokenString(JsonToken.NULL) + " or "
                        + getTokenString(JsonToken.BEGIN_ARRAY) + " but found " + getTokenString(peek));
    }

    return inPorts;
}

From source file:org.apache.airavata.workflow.core.parser.JsonWorkflowParser.java

License:Apache License

private List<OutPort> readApplicationOutputs(JsonReader jsonReader) throws IOException, ParserException {
    List<OutPort> outPorts = new ArrayList<>();
    PortModel portModel;//  ww  w  . j a  v  a 2  s.  c om
    OutPort outPort;
    String name;
    JsonToken peek = jsonReader.peek();
    if (peek == JsonToken.NULL) {
        jsonReader.nextNull();
    } else if (peek == JsonToken.BEGIN_ARRAY) {
        jsonReader.beginArray();
        while (jsonReader.hasNext()) {
            portModel = new PortModel();
            outPort = new OutPortImpl(portModel);
            jsonReader.beginObject();
            while (jsonReader.hasNext()) {
                name = jsonReader.nextName();
                if (name.equals(NAME)) {
                    portModel.setName(jsonReader.nextString());
                } else if (name.equals(ID)) {
                    portModel.setPortId(jsonReader.nextString());
                } else if (name.equals(DATATYPE)) {
                    jsonReader.skipValue();
                } else if (name.equals(DEFAULT_VALUE)) {
                    jsonReader.skipValue(); // can output has default values?
                } else if (name.equals(DESCRIPTION)) {
                    portModel.setDescription(jsonReader.nextString());
                } else {
                    jsonReader.skipValue();
                }
            }
            jsonReader.endObject();
            outPorts.add(outPort);
        }
        jsonReader.endArray();
    } else {
        throw new ParserException(
                "Error! reading application outputs, expected " + getTokenString(JsonToken.NULL) + " or "
                        + getTokenString(JsonToken.BEGIN_ARRAY) + " but found " + getTokenString(peek));

    }
    return outPorts;
}

From source file:org.apache.airavata.workflow.core.parser.JsonWorkflowParser.java

License:Apache License

private void readPosition(JsonReader jsonReader) throws IOException {
    JsonToken peek = jsonReader.peek();
    if (peek == JsonToken.NULL) {
        jsonReader.nextNull();//from w  w  w .  j  a  v  a2  s  .  c  o m
    } else if (peek == JsonToken.BEGIN_OBJECT) {
        jsonReader.beginObject();
        while (jsonReader.hasNext()) {
            // skip position data.
            jsonReader.nextName();
            jsonReader.skipValue();
        }
        jsonReader.endObject();
    } else {
        jsonReader.skipValue();
    }
}