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

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

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Introduction

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

Prototype

public String nextName() throws IOException

Source Link

Document

Returns the next token, a com.google.gson.stream.JsonToken#NAME property name , and consumes it.

Usage

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();/*from  w  w  w.  j  a v a  2  s. c  o m*/
    InputNode inputNode;
    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();//from   w w w  . j a v a2s  . co m
    OutputNode outputNode;
    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 Link readLink(JsonReader jsonReader) throws IOException {
    jsonReader.beginObject();//from   w  w w  . ja  v a 2s  .  c  om
    String name = null;
    Link link = new Link();
    while (jsonReader.hasNext()) {
        name = jsonReader.nextName();
        if (name.equals(DESCRIPTION)) {
            link.setDescription(jsonReader.nextString());
        } else if (name.equals(FROM)) {
            link.setFrom(readLinkHelper(jsonReader));
        } else if (name.equals(TO)) {
            link.setTo(readLinkHelper(jsonReader));
        } else if (name.equals(ID)) {
            link.setId(jsonReader.nextString());
        } else {
            jsonReader.skipValue();
        }
    }
    jsonReader.endObject();
    return link;
}

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

License:Apache License

private LinkHelper readLinkHelper(JsonReader jsonReader) throws IOException {
    jsonReader.beginObject();//from  w  w w  .  ja  va 2  s .c  om
    String name;
    LinkHelper helper = new LinkHelper();
    while (jsonReader.hasNext()) {
        name = jsonReader.nextName();
        if (name.equals(NODE_ID)) {
            helper.setNodeId(jsonReader.nextString());
        } else if (name.equals(OUTPUT_ID) || name.equals(INPUT_ID)) {
            helper.setPortId(jsonReader.nextString());
        } else {
            jsonReader.skipValue();
        }
    }
    jsonReader.endObject();
    return helper;
}

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

License:Apache License

private ApplicationNode readApplication(JsonReader jsonReader) throws IOException, ParserException {
    jsonReader.beginObject();//from   www .j  av a  2  s .co m
    NodeModel nodeModel = new NodeModel();
    ComponentStatus status = new ComponentStatus();
    status.setState(ComponentState.CREATED);
    status.setReason("Created");
    nodeModel.setStatus(status);
    ApplicationNode applicationNode = new ApplicationNodeImpl(nodeModel);
    String name;
    while (jsonReader.hasNext()) {
        name = jsonReader.nextName();
        if (name.equals(APPLICATION_ID)) {
            nodeModel.setApplicationId(jsonReader.nextString());
        } else if (name.equals(NAME)) {
            nodeModel.setName(jsonReader.nextString());
        } else if (name.equals(DESCRIPTION)) {
            nodeModel.setDescription(jsonReader.nextString());
        } else if (name.equals(APPTYPE)) {
            jsonReader.skipValue();
        } else if (name.equals(INPUTS)) {
            applicationNode.addInputPorts(readApplicationInputs(jsonReader));
        } else if (name.equals(OUTPUTS)) {
            applicationNode.addOutPorts(readApplicationOutputs(jsonReader));
        } else if (name.equals(POSITION)) {
            readPosition(jsonReader);
        } else if (name.equals(NODE_ID)) {
            nodeModel.setNodeId(jsonReader.nextString());
        } else if (name.equals(PARALLEL_EXECUTION)) {
            jsonReader.skipValue();
        } else if (name.equals(PROPERTIES)) {
            readProperties(jsonReader);
        }
    }
    jsonReader.endObject();
    return applicationNode;
}

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();// www  .jav  a 2s  . c  o  m
    PortModel portModel;
    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;//from ww w.  j ava2  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();//from  w w  w .ja  v a  2 s.  c o m
    if (peek == JsonToken.NULL) {
        jsonReader.nextNull();
    } else if (peek == JsonToken.BEGIN_OBJECT) {
        jsonReader.beginObject();
        while (jsonReader.hasNext()) {
            // skip position data.
            jsonReader.nextName();
            jsonReader.skipValue();
        }
        jsonReader.endObject();
    } else {
        jsonReader.skipValue();
    }
}

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

License:Apache License

private void readProperties(JsonReader jsonReader) throws IOException {
    JsonToken peek = jsonReader.peek();/*from  w w w.j  ava  2s  .  c  o  m*/
    if (peek == JsonToken.NULL) {
        jsonReader.nextNull();
    } else if (peek == JsonToken.BEGIN_OBJECT) {
        jsonReader.beginObject();
        while (jsonReader.hasNext()) {
            // TODO: Read and use proprety values
            String name = jsonReader.nextName();
            jsonReader.skipValue();
        }
        jsonReader.endObject();
    } else {
        jsonReader.skipValue();
    }

}

From source file:org.apache.ambari.view.hive.resources.uploads.parsers.json.JSONIterator.java

License:Apache License

private LinkedHashMap<String, String> readNextObject(JsonReader reader)
        throws IOException, EndOfDocumentException {
    LinkedHashMap<String, String> row = new LinkedHashMap<>();
    boolean objectStarted = false;
    boolean shouldBeName = false;
    String currentName = null;/*from  w w w  .ja va 2s.c o m*/

    while (true) {
        JsonToken token = reader.peek();
        switch (token) {
        case BEGIN_ARRAY:
            throw new IllegalArgumentException("Row data cannot have an array.");
        case END_ARRAY:
            throw new EndOfDocumentException("End of Json Array document.");
        case BEGIN_OBJECT:
            if (objectStarted == true) {
                throw new IllegalArgumentException("Nested objects not supported.");
            }
            if (shouldBeName == true) {
                throw new IllegalArgumentException("name expected, got begin_object");
            }
            objectStarted = true;
            shouldBeName = true;
            reader.beginObject();
            break;
        case END_OBJECT:
            if (shouldBeName == false) {
                throw new IllegalArgumentException("value expected, got end_object");
            }
            reader.endObject();
            return row;
        case NAME:
            if (shouldBeName == false) {
                throw new IllegalArgumentException("name not expected at this point.");
            }
            shouldBeName = false;
            currentName = reader.nextName();
            break;
        case NUMBER:
        case STRING:
            if (shouldBeName == true) {
                throw new IllegalArgumentException("value not expected at this point.");
            }
            String n = reader.nextString();
            row.put(currentName, n);
            shouldBeName = true;
            break;
        case BOOLEAN:
            if (shouldBeName == true) {
                throw new IllegalArgumentException("value not expected at this point.");
            }
            String b = String.valueOf(reader.nextBoolean());
            row.put(currentName, b);
            shouldBeName = true;
            break;
        case NULL:
            if (shouldBeName == true) {
                throw new IllegalArgumentException("value not expected at this point.");
            }
            reader.nextNull();
            row.put(currentName, "");
            shouldBeName = true;
            break;
        case END_DOCUMENT:
            return row;

        default:
            throw new IllegalArgumentException(
                    "Illegal token detected inside json: token : " + token.toString());
        }
    }
}