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:de.micromata.genome.junittools.wicket.models.WicketTestBuilderGsonBuilder.java

License:Apache License

public static Gson getGson() {
    if (gsonBuilder == null) {
        gsonBuilder = new GsonBuilder();
        gsonBuilder.registerTypeAdapterFactory(new TypeAdapterFactory() {

            @Override//  w  w  w. j a v  a2  s  . c o  m
            public <T> TypeAdapter<T> create(Gson gson, TypeToken<T> type) {
                if (type.getRawType() == Class.class) {
                    return new TypeAdapter<T>() {
                        @Override
                        public void write(JsonWriter out, T value) throws IOException {
                            out.value(((Class) value).getName());
                        }

                        @Override
                        public T read(JsonReader in) throws IOException {
                            try {
                                return (T) Class.forName(in.nextString());
                            } catch (ClassNotFoundException e) {
                                LOG.error("unable to transform " + in.nextString()
                                        + " to a reasonable class, please check this!");
                            }
                            return null;
                        }
                    };
                }
                return null;
            }
        });
    }
    return gsonBuilder.create();
}

From source file:de.pribluda.android.jsonmarshaller.JSONUnmarshaller.java

License:Apache License

/**
 * unmarshal current value, possibly walking down the three
 *
 * @param reader json reader to pull value from
 * @param clazz  expected class/*w w  w . j a  v a  2 s.  c om*/
 * @return
 * @throws IOException
 * @throws IllegalAccessException
 * @throws InvocationTargetException
 * @throws InstantiationException
 * @throws NoSuchMethodException
 */
private static Object unmarshalValue(JsonReader reader, Class clazz) throws IOException, IllegalAccessException,
        InvocationTargetException, InstantiationException, NoSuchMethodException {

    Object value = null;

    switch (reader.peek()) {
    case STRING:
    case NUMBER:
        // process string
        value = reader.nextString();
        break;
    case BOOLEAN:
        value = reader.nextBoolean();
        break;
    case BEGIN_ARRAY:
        //  we are interested in arrays
        if (clazz.isArray()) {
            // populate field value from JSON Array
            value = populateRecusrsive(clazz, reader);
        } else {
            reader.skipValue();
        }
        break;
    case BEGIN_OBJECT:
        // so, we are unmarshalling nested object - recurse
        value = unmarshall(reader, clazz);
        break;
    default:
        // do not know what to do with it,  skip
        reader.skipValue();
    }

    return value;
}

From source file:dk.ilios.spanner.json.InstantTypeAdapter.java

License:Apache License

@Override
public Instant read(JsonReader in) throws IOException {
    return Instant.from(DateTimeFormatter.ISO_INSTANT.parse(in.nextString()));
}

From source file:edu.isi.karma.modeling.alignment.GraphUtil.java

License:Apache License

private static Node readNode(JsonReader reader) throws IOException {

    String id = null;/*  ww w. ja  v  a  2  s.  c o  m*/
    Label label = null;
    NodeType type = null;
    String hNodeId = null;
    String columnName = null;
    Label rdfLiteralType = null;
    String language = null;
    Label datatype = null;
    String value = null;
    boolean isUri = false;
    SemanticType userSelectedSemanticType = null;
    List<SemanticType> learnedSemanticTypes = null;
    List<SemanticType> userSemanticTypes = null;
    Set<String> modelIds = null;

    reader.beginObject();
    while (reader.hasNext()) {
        String key = reader.nextName();
        if (key.equals("id") && reader.peek() != JsonToken.NULL) {
            id = reader.nextString();
        } else if (key.equals("label") && reader.peek() != JsonToken.NULL) {
            label = readLabel(reader);
        } else if (key.equals("type") && reader.peek() != JsonToken.NULL) {
            type = NodeType.valueOf(reader.nextString());
        } else if (key.equals("hNodeId") && reader.peek() != JsonToken.NULL) {
            hNodeId = reader.nextString();
        } else if (key.equals("columnName") && reader.peek() != JsonToken.NULL) {
            columnName = reader.nextString();
        } else if (key.equals("datatype") && reader.peek() != JsonToken.NULL) {
            datatype = readLabel(reader);
        } else if (key.equals("value") && reader.peek() != JsonToken.NULL) {
            value = reader.nextString();
        } else if (key.equals("isUri") && reader.peek() != JsonToken.NULL) {
            isUri = Boolean.parseBoolean(reader.nextString());
        } else if (key.equals("rdfLiteralType") && reader.peek() != JsonToken.NULL) {
            rdfLiteralType = readLabel(reader);
        } else if (key.equals("language") && reader.peek() != JsonToken.NULL) {
            language = reader.nextString();
        } else if (key.equals("userSelectedSemanticType") && reader.peek() != JsonToken.NULL) {
            userSelectedSemanticType = readSemanticType(reader);
        } else if (key.equals("suggestedSemanticTypes") && reader.peek() != JsonToken.NULL) {
            learnedSemanticTypes = new ArrayList<>();
            reader.beginArray();
            while (reader.hasNext()) {
                SemanticType semanticType = readSemanticType(reader);
                learnedSemanticTypes.add(semanticType);
            }
            reader.endArray();
        } else if (key.equals("userSemanticTypes") && reader.peek() != JsonToken.NULL) {
            userSemanticTypes = new ArrayList<>();
            reader.beginArray();
            while (reader.hasNext()) {
                SemanticType semanticType = readSemanticType(reader);
                userSemanticTypes.add(semanticType);
            }
            reader.endArray();
        } else if (key.equals("learnedSemanticTypes") && reader.peek() != JsonToken.NULL) {
            learnedSemanticTypes = new ArrayList<>();
            reader.beginArray();
            while (reader.hasNext()) {
                SemanticType semanticType = readSemanticType(reader);
                learnedSemanticTypes.add(semanticType);
            }
            reader.endArray();
        } else if (key.equals("modelIds") && reader.peek() != JsonToken.NULL) {
            modelIds = readModelIds(reader);
        } else {
            reader.skipValue();
        }
    }
    reader.endObject();

    Node n = null;
    if (type == NodeType.InternalNode) {
        n = new InternalNode(id, label);
    } else if (type == NodeType.ColumnNode) {
        n = new ColumnNode(id, hNodeId, columnName, rdfLiteralType, language);
        if (userSemanticTypes == null && userSelectedSemanticType != null) {
            userSemanticTypes = new ArrayList<>();
            userSemanticTypes.add(userSelectedSemanticType);
        }
        if (userSemanticTypes != null) {
            for (SemanticType st : userSemanticTypes)
                ((ColumnNode) n).assignUserType(st);
        }
        ((ColumnNode) n).setLearnedSemanticTypes(learnedSemanticTypes);
    } else if (type == NodeType.LiteralNode) {
        n = new LiteralNode(id, value, datatype, language, isUri);
    } else {
        logger.error("cannot instanciate a node from the type: " + type.toString());
        return null;
    }

    n.setModelIds(modelIds);

    return n;
}

From source file:edu.isi.karma.modeling.alignment.GraphUtil.java

License:Apache License

private static DefaultLink readLink(JsonReader reader, Double[] weight) throws IOException {

    String id = null;//from   w ww .j a  va2s. c o m
    Label label = null;
    LinkType type = null;
    String hNodeId = null;
    ObjectPropertyType objectPropertyType = null;
    String specializedLinkId = null;
    LinkStatus status = null;
    LinkKeyInfo keyInfo = null;
    Set<String> modelIds = null;
    if (weight == null)
        weight = new Double[1];

    reader.beginObject();
    while (reader.hasNext()) {
        String key = reader.nextName();
        if (key.equals("id") && reader.peek() != JsonToken.NULL) {
            id = reader.nextString();
        } else if (key.equals("label") && reader.peek() != JsonToken.NULL) {
            label = readLabel(reader);
        } else if (key.equals("type") && reader.peek() != JsonToken.NULL) {
            type = LinkType.valueOf(reader.nextString());
        } else if (key.equals("hNodeId") && reader.peek() != JsonToken.NULL) {
            hNodeId = reader.nextString();
        } else if (key.equals("objectPropertyType") && reader.peek() != JsonToken.NULL) {
            objectPropertyType = ObjectPropertyType.valueOf(reader.nextString());
        } else if (key.equals("specializedLinkId") && reader.peek() != JsonToken.NULL) {
            specializedLinkId = reader.nextString();
        } else if (key.equals("status") && reader.peek() != JsonToken.NULL) {
            status = LinkStatus.valueOf(reader.nextString());
        } else if (key.equals("keyInfo") && reader.peek() != JsonToken.NULL) {
            keyInfo = LinkKeyInfo.valueOf(reader.nextString());
        } else if (key.equals("modelIds") && reader.peek() != JsonToken.NULL) {
            modelIds = readModelIds(reader);
        } else if (key.equals("weight") && reader.peek() != JsonToken.NULL) {
            weight[0] = new Double(reader.nextDouble());
        } else {
            reader.skipValue();
        }
    }
    reader.endObject();

    DefaultLink l = null;
    if (type == LinkType.ClassInstanceLink) {
        l = new ClassInstanceLink(id, keyInfo);
    } else if (type == LinkType.ColumnSubClassLink) {
        l = new ColumnSubClassLink(id);
    } else if (type == LinkType.DataPropertyLink) {
        l = new DataPropertyLink(id, label);
    } else if (type == LinkType.DataPropertyOfColumnLink) {
        l = new DataPropertyOfColumnLink(id, hNodeId, specializedLinkId);
    } else if (type == LinkType.ObjectPropertyLink) {
        l = new ObjectPropertyLink(id, label, objectPropertyType);
    } else if (type == LinkType.ObjectPropertySpecializationLink) {
        l = new ObjectPropertySpecializationLink(hNodeId, specializedLinkId);
    } else if (type == LinkType.SubClassLink) {
        l = new SubClassLink(id);
    } else if (type == LinkType.CompactObjectPropertyLink) {
        l = new CompactObjectPropertyLink(id, objectPropertyType);
    } else if (type == LinkType.CompactSubClassLink) {
        l = new CompactSubClassLink(id);
    } else {
        logger.error("cannot instanciate a link from the type: " + type.toString());
        return null;
    }

    if (l instanceof LabeledLink) {
        ((LabeledLink) l).setStatus(status);
        ((LabeledLink) l).setModelIds(modelIds);
    }
    return l;
}

From source file:edu.isi.karma.modeling.alignment.GraphUtil.java

License:Apache License

private static Label readLabel(JsonReader reader) throws IOException {

    String uri = null;/*from w w w  .  ja v  a  2  s  . c  o  m*/
    //      String ns = null;
    //      String prefix = null;
    //      String rdfsComment = null;
    String rdfsLabel = null;

    reader.beginObject();
    while (reader.hasNext()) {
        String key = reader.nextName();
        if (key.equals("uri") && reader.peek() != JsonToken.NULL) {
            uri = reader.nextString();
            //} else if (key.equals("ns") && reader.peek() != JsonToken.NULL) {
            //   ns = reader.nextString();
            //} else if (key.equals("prefix") && reader.peek() != JsonToken.NULL) {
            //   prefix = reader.nextString();
            //} else if (key.equals("rdfsLabel") && reader.peek() != JsonToken.NULL) {
            //   rdfsLabel = reader.nextString();
            //} else if (key.equals("rdfsComment") && reader.peek() != JsonToken.NULL) {
            //   rdfsComment = reader.nextString();
        } else {
            reader.skipValue();
        }
    }
    reader.endObject();

    //       Label label = new Label(uri, ns, prefix, rdfsLabel, rdfsComment);
    Label label = new Label(uri);
    return label;
}

From source file:edu.isi.karma.modeling.alignment.GraphUtil.java

License:Apache License

private static SemanticType readSemanticType(JsonReader reader) throws IOException {

    String hNodeId = null;//from w w  w  .  j  av  a 2 s  .  co m
    Label domain = null;
    Label type = null;
    Origin origin = null;
    Double confidenceScore = null;

    reader.beginObject();
    while (reader.hasNext()) {
        String key = reader.nextName();
        if (key.equals("hNodeId") && reader.peek() != JsonToken.NULL) {
            hNodeId = reader.nextString();
        } else if (key.equals("domain") && reader.peek() != JsonToken.NULL) {
            domain = readLabel(reader);
        } else if (key.equals("type") && reader.peek() != JsonToken.NULL) {
            type = readLabel(reader);
        } else if (key.equals("origin") && reader.peek() != JsonToken.NULL) {
            origin = Origin.valueOf(reader.nextString());
        } else if (key.equals("confidenceScore") && reader.peek() != JsonToken.NULL) {
            confidenceScore = reader.nextDouble();
        } else {
            reader.skipValue();
        }
    }
    reader.endObject();

    SemanticType semanticType = new SemanticType(hNodeId, type, domain, origin, confidenceScore);
    return semanticType;
}

From source file:edu.isi.karma.modeling.alignment.GraphUtil.java

License:Apache License

private static Set<String> readModelIds(JsonReader reader) throws IOException {

    Set<String> modelIds = new HashSet<>();

    reader.beginArray();/*from   w  w  w  . java2  s  . co  m*/
    while (reader.hasNext()) {
        modelIds.add(reader.nextString());
    }
    reader.endArray();

    return modelIds;
}

From source file:edu.isi.karma.modeling.alignment.SemanticModel.java

License:Apache License

private static SemanticModel readModel(JsonReader reader) throws IOException {

    String id = null;/*from w  w  w  .j a va2 s.  com*/
    String name = null;
    String description = null;
    DirectedWeightedMultigraph<Node, DefaultLink> graph = null;
    List<ColumnNode> sourceColumns = null;
    HashMap<String, ColumnNode> sourceColumnIds = null;

    Map<String, String> mappingToSourceColumnsIds = null;

    reader.beginObject();
    while (reader.hasNext()) {
        String key = reader.nextName();
        if (key.equals("id") && reader.peek() != JsonToken.NULL) {
            id = reader.nextString();
        } else if (key.equals("name") && reader.peek() != JsonToken.NULL) {
            name = reader.nextString();
        } else if (key.equals("description") && reader.peek() != JsonToken.NULL) {
            description = reader.nextString();
        } else if (key.equals("sourceColumns") && reader.peek() != JsonToken.NULL) {
            sourceColumns = new LinkedList<>();
            sourceColumnIds = new HashMap<>();
            reader.beginArray();
            while (reader.hasNext()) {
                ColumnNode cn = readSourceColumn(reader);
                if (cn != null) {
                    sourceColumns.add(cn);
                    sourceColumnIds.put(cn.getId(), cn);
                }
            }
            reader.endArray();
        } else if (key.equals("mappingToSourceColumns") && reader.peek() != JsonToken.NULL) {
            mappingToSourceColumnsIds = new HashMap<>();
            Map<String, String> oneEntryMapping;
            reader.beginArray();
            while (reader.hasNext()) {
                oneEntryMapping = readMappingToSourceColumn(reader);
                if (oneEntryMapping != null && oneEntryMapping.size() == 1)
                    mappingToSourceColumnsIds.putAll(oneEntryMapping);
            }
            reader.endArray();
        } else if (key.equals("graph") && reader.peek() != JsonToken.NULL) {
            graph = GraphUtil.readGraph(reader);
        } else {
            reader.skipValue();
        }
    }
    reader.endObject();

    Map<ColumnNode, ColumnNode> mappingToSourceColumns = new HashMap<>();
    if (graph != null && mappingToSourceColumnsIds != null && !mappingToSourceColumnsIds.isEmpty()) {
        for (Node n : graph.vertexSet()) {
            if (n instanceof ColumnNode) {
                ColumnNode cn = (ColumnNode) n;
                String sourceColumnId = mappingToSourceColumnsIds.get(cn.getId());
                if (sourceColumnId != null) {
                    ColumnNode sourceColumn = sourceColumnIds.get(sourceColumnId);
                    if (sourceColumn != null)
                        mappingToSourceColumns.put(cn, sourceColumn);
                }
            }
        }
    }

    SemanticModel semanticModel = new SemanticModel(id, GraphUtil.asLabeledGraph(graph), sourceColumns,
            mappingToSourceColumns);
    semanticModel.setName(name);
    semanticModel.setDescription(description);

    return semanticModel;
}

From source file:edu.isi.karma.modeling.alignment.SemanticModel.java

License:Apache License

private static ColumnNode readSourceColumn(JsonReader reader) throws IOException {
    String id = null;/*from   www  .j  a  v  a2s  . co m*/
    String hNodeId = null;
    String columnName = null;

    reader.beginObject();
    while (reader.hasNext()) {
        String key = reader.nextName();
        if (key.equals("id") && reader.peek() != JsonToken.NULL) {
            id = reader.nextString();
        } else if (key.equals("hNodeId") && reader.peek() != JsonToken.NULL) {
            hNodeId = reader.nextString();
        } else if (key.equals("columnName") && reader.peek() != JsonToken.NULL) {
            columnName = reader.nextString();
        } else {
            reader.skipValue();
        }
    }
    reader.endObject();

    ColumnNode cn = new ColumnNode(id, hNodeId, columnName, null, null);
    return cn;
}