Example usage for javax.xml.stream.events Attribute getValue

List of usage examples for javax.xml.stream.events Attribute getValue

  1. HOME
  2. Java
  3. javax
  4. javax.xml.stream.events.*
  5. Attribute
  6. getValue

Introduction

In this page you can find the example usage for javax.xml.stream.events Attribute getValue.

Prototype

public String getValue();

Source Link

Document

Gets the normalized value of this attribute

Usage

From source file:org.apache.olingo.commons.core.serialization.AtomDeserializer.java

private void valuable(final Valuable valuable, final XMLEventReader reader, final StartElement start)
        throws XMLStreamException, EdmPrimitiveTypeException {

    final Attribute nullAttr = start.getAttributeByName(nullQName);

    final Attribute typeAttr = start.getAttributeByName(typeQName);
    final String typeAttrValue = typeAttr == null ? null : typeAttr.getValue();

    final EdmTypeInfo typeInfo = StringUtils.isBlank(typeAttrValue) ? null
            : new EdmTypeInfo.Builder().setTypeExpression(typeAttrValue).build();

    if (typeInfo != null) {
        valuable.setType(typeInfo.internal());
    }/*  w  w  w  .j  a  v a 2s  .c om*/

    final ODataPropertyType propType = typeInfo == null ? guessPropertyType(reader, typeInfo)
            : typeInfo.isCollection() ? ODataPropertyType.COLLECTION
                    : typeInfo.isPrimitiveType() ? ODataPropertyType.PRIMITIVE : ODataPropertyType.COMPLEX;

    if (nullAttr == null) {
        switch (propType) {
        case COLLECTION:
            fromCollection(valuable, reader, start, typeInfo);
            break;

        case COMPLEX:
            final Object complexValue = fromComplexOrEnum(reader, start);
            valuable.setValue(
                    complexValue instanceof LinkedComplexValue ? ValueType.LINKED_COMPLEX
                            : complexValue instanceof List<?> ? ValueType.COMPLEX : ValueType.ENUM,
                    complexValue);
            break;

        case PRIMITIVE:
            // No type specified? Defaults to Edm.String
            if (typeInfo == null) {
                valuable.setType(EdmPrimitiveTypeKind.String.getFullQualifiedName().toString());
            }
            final Object value = fromPrimitive(reader, start, typeInfo);
            valuable.setValue(value instanceof Geospatial ? ValueType.GEOSPATIAL : ValueType.PRIMITIVE, value);
            break;

        case EMPTY:
        default:
            valuable.setValue(ValueType.PRIMITIVE, StringUtils.EMPTY);
        }
    } else {
        valuable.setValue(propType == ODataPropertyType.PRIMITIVE ? ValueType.PRIMITIVE
                : propType == ODataPropertyType.ENUM ? ValueType.ENUM
                        : propType == ODataPropertyType.COMPLEX ? ValueType.COMPLEX
                                : propType == ODataPropertyType.COLLECTION ? ValueType.COLLECTION_PRIMITIVE
                                        : ValueType.PRIMITIVE,
                null);
    }
}

From source file:org.apache.olingo.commons.core.serialization.AtomDeserializer.java

private Delta delta(final XMLEventReader reader, final StartElement start)
        throws XMLStreamException, EdmPrimitiveTypeException {
    if (!Constants.QNAME_ATOM_ELEM_FEED.equals(start.getName())) {
        return null;
    }/*  w  ww.j  av a2  s.co  m*/
    final DeltaImpl delta = new DeltaImpl();
    final Attribute xmlBase = start.getAttributeByName(Constants.QNAME_ATTR_XML_BASE);
    if (xmlBase != null) {
        delta.setBaseURI(xmlBase.getValue());
    }

    boolean foundEndFeed = false;
    while (reader.hasNext() && !foundEndFeed) {
        final XMLEvent event = reader.nextEvent();
        if (event.isStartElement()) {
            if (countQName.equals(event.asStartElement().getName())) {
                count(reader, event.asStartElement(), delta);
            } else if (Constants.QNAME_ATOM_ELEM_ID.equals(event.asStartElement().getName())) {
                common(reader, event.asStartElement(), delta, "id");
            } else if (Constants.QNAME_ATOM_ELEM_TITLE.equals(event.asStartElement().getName())) {
                common(reader, event.asStartElement(), delta, "title");
            } else if (Constants.QNAME_ATOM_ELEM_SUMMARY.equals(event.asStartElement().getName())) {
                common(reader, event.asStartElement(), delta, "summary");
            } else if (Constants.QNAME_ATOM_ELEM_UPDATED.equals(event.asStartElement().getName())) {
                common(reader, event.asStartElement(), delta, "updated");
            } else if (Constants.QNAME_ATOM_ELEM_LINK.equals(event.asStartElement().getName())) {
                final Attribute rel = event.asStartElement()
                        .getAttributeByName(QName.valueOf(Constants.ATTR_REL));
                if (rel != null) {
                    if (Constants.NEXT_LINK_REL.equals(rel.getValue())) {
                        final Attribute href = event.asStartElement()
                                .getAttributeByName(QName.valueOf(Constants.ATTR_HREF));
                        if (href != null) {
                            delta.setNext(URI.create(href.getValue()));
                        }
                    }
                    if (ODataServiceVersion.V40.getNamespace(NamespaceKey.DELTA_LINK_REL)
                            .equals(rel.getValue())) {
                        final Attribute href = event.asStartElement()
                                .getAttributeByName(QName.valueOf(Constants.ATTR_HREF));
                        if (href != null) {
                            delta.setDeltaLink(URI.create(href.getValue()));
                        }
                    }
                }
            } else if (Constants.QNAME_ATOM_ELEM_ENTRY.equals(event.asStartElement().getName())) {
                delta.getEntities().add(entity(reader, event.asStartElement()));
            } else if (deletedEntryQName.equals(event.asStartElement().getName())) {
                final DeletedEntityImpl deletedEntity = new DeletedEntityImpl();

                final Attribute ref = event.asStartElement()
                        .getAttributeByName(QName.valueOf(Constants.ATTR_REF));
                if (ref != null) {
                    deletedEntity.setId(URI.create(ref.getValue()));
                }
                final Attribute reason = event.asStartElement().getAttributeByName(reasonQName);
                if (reason != null) {
                    deletedEntity.setReason(Reason.valueOf(reason.getValue()));
                }

                delta.getDeletedEntities().add(deletedEntity);
            } else if (linkQName.equals(event.asStartElement().getName())
                    || deletedLinkQName.equals(event.asStartElement().getName())) {

                final DeltaLinkImpl link = new DeltaLinkImpl();

                final Attribute source = event.asStartElement()
                        .getAttributeByName(QName.valueOf(Constants.ATTR_SOURCE));
                if (source != null) {
                    link.setSource(URI.create(source.getValue()));
                }
                final Attribute relationship = event.asStartElement()
                        .getAttributeByName(QName.valueOf(Constants.ATTR_RELATIONSHIP));
                if (relationship != null) {
                    link.setRelationship(relationship.getValue());
                }
                final Attribute target = event.asStartElement()
                        .getAttributeByName(QName.valueOf(Constants.ATTR_TARGET));
                if (target != null) {
                    link.setTarget(URI.create(target.getValue()));
                }

                if (linkQName.equals(event.asStartElement().getName())) {
                    delta.getAddedLinks().add(link);
                } else {
                    delta.getDeletedLinks().add(link);
                }
            }
        }

        if (event.isEndElement() && start.getName().equals(event.asEndElement().getName())) {
            foundEndFeed = true;
        }
    }

    return delta;
}

From source file:org.apache.olingo.commons.core.serialization.AtomDeserializer.java

private EntityImpl entityRef(final StartElement start) throws XMLStreamException {
    final EntityImpl entity = new EntityImpl();

    final Attribute entityRefId = start.getAttributeByName(Constants.QNAME_ATOM_ATTR_ID);
    if (entityRefId != null) {
        entity.setId(URI.create(entityRefId.getValue()));
    }//from   ww w. j  a v  a2s  .com

    return entity;
}

From source file:org.apache.olingo.commons.core.serialization.AtomDeserializer.java

private Entity entity(final XMLEventReader reader, final StartElement start)
        throws XMLStreamException, EdmPrimitiveTypeException {
    final EntityImpl entity;
    if (entryRefQName.equals(start.getName())) {
        entity = entityRef(start);//ww w  . j  a v a2 s  . c o m
    } else if (Constants.QNAME_ATOM_ELEM_ENTRY.equals(start.getName())) {
        entity = new EntityImpl();
        final Attribute xmlBase = start.getAttributeByName(Constants.QNAME_ATTR_XML_BASE);
        if (xmlBase != null) {
            entity.setBaseURI(xmlBase.getValue());
        }

        final Attribute etag = start.getAttributeByName(etagQName);
        if (etag != null) {
            entity.setETag(etag.getValue());
        }

        boolean foundEndEntry = false;
        while (reader.hasNext() && !foundEndEntry) {
            final XMLEvent event = reader.nextEvent();

            if (event.isStartElement()) {
                if (Constants.QNAME_ATOM_ELEM_ID.equals(event.asStartElement().getName())) {
                    common(reader, event.asStartElement(), entity, "id");
                } else if (Constants.QNAME_ATOM_ELEM_TITLE.equals(event.asStartElement().getName())) {
                    common(reader, event.asStartElement(), entity, "title");
                } else if (Constants.QNAME_ATOM_ELEM_SUMMARY.equals(event.asStartElement().getName())) {
                    common(reader, event.asStartElement(), entity, "summary");
                } else if (Constants.QNAME_ATOM_ELEM_UPDATED.equals(event.asStartElement().getName())) {
                    common(reader, event.asStartElement(), entity, "updated");
                } else if (Constants.QNAME_ATOM_ELEM_CATEGORY.equals(event.asStartElement().getName())) {
                    final Attribute term = event.asStartElement()
                            .getAttributeByName(QName.valueOf(Constants.ATOM_ATTR_TERM));
                    if (term != null) {
                        entity.setType(new EdmTypeInfo.Builder().setTypeExpression(term.getValue()).build()
                                .internal());
                    }
                } else if (Constants.QNAME_ATOM_ELEM_LINK.equals(event.asStartElement().getName())) {
                    final LinkImpl link = new LinkImpl();
                    final Attribute rel = event.asStartElement()
                            .getAttributeByName(QName.valueOf(Constants.ATTR_REL));
                    if (rel != null) {
                        link.setRel(rel.getValue());
                    }
                    final Attribute title = event.asStartElement()
                            .getAttributeByName(QName.valueOf(Constants.ATTR_TITLE));
                    if (title != null) {
                        link.setTitle(title.getValue());
                    }
                    final Attribute href = event.asStartElement()
                            .getAttributeByName(QName.valueOf(Constants.ATTR_HREF));
                    if (href != null) {
                        link.setHref(href.getValue());
                    }
                    final Attribute type = event.asStartElement()
                            .getAttributeByName(QName.valueOf(Constants.ATTR_TYPE));
                    if (type != null) {
                        link.setType(type.getValue());
                    }

                    if (Constants.SELF_LINK_REL.equals(link.getRel())) {
                        entity.setSelfLink(link);
                    } else if (Constants.EDIT_LINK_REL.equals(link.getRel())) {
                        entity.setEditLink(link);
                    } else if (Constants.EDITMEDIA_LINK_REL.equals(link.getRel())) {
                        final Attribute mediaETag = event.asStartElement().getAttributeByName(etagQName);
                        if (mediaETag != null) {
                            entity.setMediaETag(mediaETag.getValue());
                        }
                    } else if (link.getRel().startsWith(
                            version.getNamespace(ODataServiceVersion.NamespaceKey.NAVIGATION_LINK_REL))) {

                        entity.getNavigationLinks().add(link);
                        inline(reader, event.asStartElement(), link);
                    } else if (link.getRel().startsWith(
                            version.getNamespace(ODataServiceVersion.NamespaceKey.ASSOCIATION_LINK_REL))) {

                        entity.getAssociationLinks().add(link);
                    } else if (link.getRel().startsWith(
                            version.getNamespace(ODataServiceVersion.NamespaceKey.MEDIA_EDIT_LINK_REL))) {

                        final Attribute metag = event.asStartElement().getAttributeByName(etagQName);
                        if (metag != null) {
                            link.setMediaETag(metag.getValue());
                        }
                        entity.getMediaEditLinks().add(link);
                    }
                } else if (actionQName.equals(event.asStartElement().getName())) {
                    final ODataOperation operation = new ODataOperation();
                    final Attribute metadata = event.asStartElement()
                            .getAttributeByName(QName.valueOf(Constants.ATTR_METADATA));
                    if (metadata != null) {
                        operation.setMetadataAnchor(metadata.getValue());
                    }
                    final Attribute title = event.asStartElement()
                            .getAttributeByName(QName.valueOf(Constants.ATTR_TITLE));
                    if (title != null) {
                        operation.setTitle(title.getValue());
                    }
                    final Attribute target = event.asStartElement()
                            .getAttributeByName(QName.valueOf(Constants.ATTR_TARGET));
                    if (target != null) {
                        operation.setTarget(URI.create(target.getValue()));
                    }

                    entity.getOperations().add(operation);
                } else if (Constants.QNAME_ATOM_ELEM_CONTENT.equals(event.asStartElement().getName())) {
                    final Attribute type = event.asStartElement()
                            .getAttributeByName(QName.valueOf(Constants.ATTR_TYPE));
                    if (type == null || ContentType.APPLICATION_XML.equals(type.getValue())) {
                        properties(reader, skipBeforeFirstStartElement(reader), entity);
                    } else {
                        entity.setMediaContentType(type.getValue());
                        final Attribute src = event.asStartElement()
                                .getAttributeByName(QName.valueOf(Constants.ATOM_ATTR_SRC));
                        if (src != null) {
                            entity.setMediaContentSource(URI.create(src.getValue()));
                        }
                    }
                } else if (propertiesQName.equals(event.asStartElement().getName())) {
                    properties(reader, event.asStartElement(), entity);
                } else if (annotationQName.equals(event.asStartElement().getName())) {
                    entity.getAnnotations().add(annotation(reader, event.asStartElement()));
                }
            }

            if (event.isEndElement() && start.getName().equals(event.asEndElement().getName())) {
                foundEndEntry = true;
            }
        }
    } else {
        entity = null;
    }

    return entity;
}

From source file:org.apache.olingo.commons.core.serialization.AtomDeserializer.java

private EntitySet entitySet(final XMLEventReader reader, final StartElement start)
        throws XMLStreamException, EdmPrimitiveTypeException {
    if (!Constants.QNAME_ATOM_ELEM_FEED.equals(start.getName())) {
        return null;
    }/*from  w  w w  .j av  a2  s .  co  m*/
    final EntitySetImpl entitySet = new EntitySetImpl();
    final Attribute xmlBase = start.getAttributeByName(Constants.QNAME_ATTR_XML_BASE);
    if (xmlBase != null) {
        entitySet.setBaseURI(xmlBase.getValue());
    }

    boolean foundEndFeed = false;
    while (reader.hasNext() && !foundEndFeed) {
        final XMLEvent event = reader.nextEvent();
        if (event.isStartElement()) {
            if (countQName.equals(event.asStartElement().getName())) {
                count(reader, event.asStartElement(), entitySet);
            } else if (Constants.QNAME_ATOM_ELEM_ID.equals(event.asStartElement().getName())) {
                common(reader, event.asStartElement(), entitySet, "id");
            } else if (Constants.QNAME_ATOM_ELEM_TITLE.equals(event.asStartElement().getName())) {
                common(reader, event.asStartElement(), entitySet, "title");
            } else if (Constants.QNAME_ATOM_ELEM_SUMMARY.equals(event.asStartElement().getName())) {
                common(reader, event.asStartElement(), entitySet, "summary");
            } else if (Constants.QNAME_ATOM_ELEM_UPDATED.equals(event.asStartElement().getName())) {
                common(reader, event.asStartElement(), entitySet, "updated");
            } else if (Constants.QNAME_ATOM_ELEM_LINK.equals(event.asStartElement().getName())) {
                final Attribute rel = event.asStartElement()
                        .getAttributeByName(QName.valueOf(Constants.ATTR_REL));
                if (rel != null) {
                    if (Constants.NEXT_LINK_REL.equals(rel.getValue())) {
                        final Attribute href = event.asStartElement()
                                .getAttributeByName(QName.valueOf(Constants.ATTR_HREF));
                        if (href != null) {
                            entitySet.setNext(URI.create(href.getValue()));
                        }
                    }
                    if (ODataServiceVersion.V40.getNamespace(NamespaceKey.DELTA_LINK_REL)
                            .equals(rel.getValue())) {
                        final Attribute href = event.asStartElement()
                                .getAttributeByName(QName.valueOf(Constants.ATTR_HREF));
                        if (href != null) {
                            entitySet.setDeltaLink(URI.create(href.getValue()));
                        }
                    }
                }
            } else if (Constants.QNAME_ATOM_ELEM_ENTRY.equals(event.asStartElement().getName())) {
                entitySet.getEntities().add(entity(reader, event.asStartElement()));
            } else if (entryRefQName.equals(event.asStartElement().getName())) {
                entitySet.getEntities().add(entityRef(event.asStartElement()));
            } else if (annotationQName.equals(event.asStartElement().getName())) {
                entitySet.getAnnotations().add(annotation(reader, event.asStartElement()));
            }
        }

        if (event.isEndElement() && start.getName().equals(event.asEndElement().getName())) {
            foundEndFeed = true;
        }
    }

    return entitySet;
}

From source file:org.apache.olingo.fit.metadata.Metadata.java

private EntityType getEntityType(final StartElement start, final XMLEventReader reader)
        throws XMLStreamException {
    final EntityType entityType = new EntityType(start.getAttributeByName(new QName("Name")).getValue());
    final Attribute baseType = start.getAttributeByName(new QName("BaseType"));
    if (baseType != null) {
        entityType.setBaseType(baseType.getValue());
    }/*  w  ww. j a va2s.  c  o m*/
    final Attribute openType = start.getAttributeByName(new QName("OpenType"));
    if (openType != null) {
        entityType.setOpenType(BooleanUtils.toBoolean(openType.getValue()));
    }

    boolean completed = false;

    while (!completed && reader.hasNext()) {
        XMLEvent event = reader.nextEvent();

        if (event.isStartElement() && event.asStartElement().getName().equals(new QName(DEF_NS, "Property"))) {
            final org.apache.olingo.fit.metadata.Property property = getProperty(event.asStartElement());
            entityType.addProperty(property.getName(), property);
        } else if (event.isStartElement()
                && event.asStartElement().getName().equals(new QName(DEF_NS, "NavigationProperty"))) {
            final NavigationProperty property = getNavigationProperty(event.asStartElement());
            entityType.addNavigationProperty(property.getName(), property);
        } else if (event.isEndElement() && event.asEndElement().getName().equals(start.getName())) {
            completed = true;
        }
    }

    return entityType;
}

From source file:org.apache.olingo.fit.metadata.Metadata.java

private org.apache.olingo.fit.metadata.Property getProperty(final StartElement start)
        throws XMLStreamException {
    final org.apache.olingo.fit.metadata.Property property = new org.apache.olingo.fit.metadata.Property(
            start.getAttributeByName(new QName("Name")).getValue());

    final Attribute type = start.getAttributeByName(new QName("Type"));
    property.setType(type == null ? "Edm.String" : type.getValue());

    final Attribute nullable = start.getAttributeByName(new QName("Nullable"));
    property.setNullable(nullable == null || !"false".equals(nullable.getValue()));

    return property;
}

From source file:org.apache.olingo.fit.metadata.Metadata.java

private NavigationProperty getNavigationProperty(final StartElement start) throws XMLStreamException {
    final NavigationProperty property = new NavigationProperty(
            start.getAttributeByName(new QName("Name")).getValue());

    final Attribute type = start.getAttributeByName(new QName("Type"));
    if (type != null) {
        property.setType(type.getValue());
    }/*from w  ww .  ja v a2 s.com*/

    return property;
}

From source file:org.apache.olingo.fit.metadata.Metadata.java

private EntitySet getEntitySet(final StartElement start, final XMLEventReader reader)
        throws XMLStreamException {
    final EntitySet entitySet = "Singleton".equals(start.getName().getLocalPart())
            ? new EntitySet(start.getAttributeByName(new QName("Name")).getValue(), true)
            : new EntitySet(start.getAttributeByName(new QName("Name")).getValue());

    Attribute type = start.getAttributeByName(new QName("EntityType"));
    if (type == null) {
        type = start.getAttributeByName(new QName("Type"));
        entitySet.setType(type == null ? null : type.getValue());
    } else {/*from w ww . jav a  2  s  .c  om*/
        entitySet.setType(type.getValue());
    }

    boolean completed = false;

    while (!completed && reader.hasNext()) {
        XMLEvent event = reader.nextEvent();

        if (event.isStartElement()
                && event.asStartElement().getName().equals(new QName(DEF_NS, "NavigationPropertyBinding"))) {
            final String path = event.asStartElement().getAttributeByName(new QName("Path")).getValue();
            final String target = event.asStartElement().getAttributeByName(new QName("Target")).getValue();
            entitySet.addBinding(path, target);
        } else if (event.isEndElement() && event.asEndElement().getName().equals(start.getName())) {
            completed = true;
        }
    }

    return entitySet;
}

From source file:org.apache.olingo.fit.utils.AbstractXMLUtilities.java

/**
 * {@inheritDoc }/*from w w  w .  j a  va  2 s.c om*/
 */
@Override
protected NavigationLinks retrieveNavigationInfo(final String entitySetName, final InputStream is)
        throws Exception {

    final NavigationLinks links = new NavigationLinks();

    final XMLEventReader reader = getEventReader(is);

    try {
        final List<Map.Entry<String, String>> filter = new ArrayList<Map.Entry<String, String>>();
        filter.add(new AbstractMap.SimpleEntry<String, String>("type", "application/atom+xml;type=entry"));
        filter.add(new AbstractMap.SimpleEntry<String, String>("type", "application/atom+xml;type=feed"));

        int startDepth = 0;

        while (true) {
            // a. search for link with type attribute equals to "application/atom+xml;type=entry/feed"
            final Map.Entry<Integer, XmlElement> linkInfo = extractElement(reader, null,
                    Collections.<String>singletonList(LINK), filter, true, startDepth, 2, 2);
            final XmlElement link = linkInfo.getValue();
            startDepth = linkInfo.getKey();

            final String title = link.getStart().getAttributeByName(new QName("title")).getValue();

            final Attribute hrefAttr = link.getStart().getAttributeByName(new QName("href"));
            final String href = hrefAttr == null ? null : hrefAttr.getValue();

            try {
                final XmlElement inlineElement = extractElement(link.getContentReader(), null,
                        Collections.<String>singletonList(INLINE), 0, -1, -1).getValue();
                final XMLEventReader inlineReader = inlineElement.getContentReader();

                try {
                    while (true) {
                        final XmlElement entry = extractElement(inlineReader, null,
                                Collections.<String>singletonList("entry"), 0, -1, -1).getValue();
                        links.addInlines(title, entry.toStream());
                    }
                } catch (Exception e) {
                    // Reached the end of document
                }

                inlineReader.close();
            } catch (Exception ignore) {
                // inline element not found (inlines are not mondatory).
                if (StringUtils.isNotBlank(href) && entityUriPattern.matcher(href).matches()) {
                    links.addLinks(title, href.substring(href.lastIndexOf('/') + 1));
                }
            }
        }
    } catch (Exception ignore) {
        // ignore
    } finally {
        reader.close();
    }

    return links;
}