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org.vertexium.inmemory.InMemoryElement Maven / Gradle / Ivy
package org.vertexium.inmemory;
import org.vertexium.*;
import org.vertexium.mutation.*;
import org.vertexium.property.MutableProperty;
import org.vertexium.property.MutablePropertyImpl;
import org.vertexium.search.IndexHint;
import org.vertexium.util.ConvertingIterable;
import org.vertexium.util.FilterIterable;
import org.vertexium.util.IncreasingTime;
import java.util.ArrayList;
import java.util.EnumSet;
import java.util.Iterator;
import java.util.List;
public abstract class InMemoryElement implements Element {
private final String id;
private Property idProperty;
private Property edgeLabelProperty;
private InMemoryGraph graph;
private InMemoryTableElement inMemoryTableElement;
private final boolean includeHidden;
private final Long endTime;
private final Authorizations authorizations;
protected InMemoryElement(
InMemoryGraph graph,
String id,
InMemoryTableElement inMemoryTableElement,
boolean includeHidden,
Long endTime,
Authorizations authorizations
) {
this.graph = graph;
this.id = id;
this.includeHidden = includeHidden;
this.endTime = endTime;
this.authorizations = authorizations;
this.inMemoryTableElement = inMemoryTableElement;
}
@Override
public String getId() {
return this.id;
}
protected Property getIdProperty() {
if (idProperty == null) {
idProperty = new MutablePropertyImpl(ElementMutation.DEFAULT_KEY, ID_PROPERTY_NAME, getId(), null, getTimestamp(), null, null);
}
return idProperty;
}
protected Property getEdgeLabelProperty() {
if (edgeLabelProperty == null && this instanceof Edge) {
String edgeLabel = ((Edge) this).getLabel();
edgeLabelProperty = new MutablePropertyImpl(ElementMutation.DEFAULT_KEY, Edge.LABEL_PROPERTY_NAME, edgeLabel, null, getTimestamp(), null, null);
}
return edgeLabelProperty;
}
@Override
public Visibility getVisibility() {
return inMemoryTableElement.getVisibility();
}
@Override
public long getTimestamp() {
return inMemoryTableElement.getTimestamp();
}
@Override
public void deleteProperty(String key, String name, Authorizations authorizations) {
deleteProperty(key, name, null, authorizations);
}
@Override
public void deleteProperty(String key, String name, Visibility visibility, Authorizations authorizations) {
getGraph().deleteProperty(this, inMemoryTableElement, key, name, visibility, authorizations);
}
@Override
public void deleteProperties(String name, Authorizations authorizations) {
for (Property p : getProperties(name)) {
deleteProperty(p.getKey(), p.getName(), p.getVisibility(), authorizations);
}
}
@Override
public void softDeleteProperty(String key, String name, Authorizations authorizations) {
Property property = getProperty(key, name);
if (property != null) {
getGraph().softDeleteProperty(inMemoryTableElement, property, null, IndexHint.INDEX, authorizations);
}
}
@Override
public void softDeleteProperty(String key, String name, Visibility visibility, Authorizations authorizations) {
softDeleteProperty(key, name, null, visibility, IndexHint.INDEX, authorizations);
}
protected void softDeleteProperty(String key, String name, Long timestamp, Visibility visibility, IndexHint indexHint, Authorizations authorizations) {
Property property = getProperty(key, name, visibility);
if (property != null) {
getGraph().softDeleteProperty(inMemoryTableElement, property, timestamp, indexHint, authorizations);
}
}
@Override
public void softDeleteProperties(String name, Authorizations authorizations) {
Iterable properties = getProperties(name);
for (Property property : properties) {
getGraph().softDeleteProperty(inMemoryTableElement, property, null, IndexHint.INDEX, authorizations);
}
}
@Override
public void markPropertyHidden(Property property, Long timestamp, Visibility visibility, Authorizations authorizations) {
markPropertyHidden(property.getKey(), property.getName(), property.getVisibility(), timestamp, visibility, authorizations);
}
@Override
public void markPropertyHidden(Property property, Visibility visibility, Authorizations authorizations) {
markPropertyHidden(property, null, visibility, authorizations);
}
@Override
public void markPropertyHidden(String key, String name, Visibility propertyVisibility, Long timestamp, Visibility visibility, Authorizations authorizations) {
getGraph().markPropertyHidden(this, inMemoryTableElement, key, name, propertyVisibility, timestamp, visibility, authorizations);
}
@Override
public void markPropertyHidden(String key, String name, Visibility propertyVisibility, Visibility visibility, Authorizations authorizations) {
getGraph().markPropertyHidden(this, inMemoryTableElement, key, name, propertyVisibility, null, visibility, authorizations);
}
@Override
public void markPropertyVisible(Property property, Long timestamp, Visibility visibility, Authorizations authorizations) {
getGraph().markPropertyVisible(this, inMemoryTableElement, property.getKey(), property.getName(), property.getVisibility(), timestamp, visibility, authorizations);
}
@Override
public void markPropertyVisible(String key, String name, Visibility propertyVisibility, Visibility visibility, Authorizations authorizations) {
getGraph().markPropertyVisible(this, inMemoryTableElement, key, name, propertyVisibility, null, visibility, authorizations);
}
@Override
public void markPropertyVisible(String key, String name, Visibility propertyVisibility, Long timestamp, Visibility visibility, Authorizations authorizations) {
getGraph().markPropertyVisible(this, inMemoryTableElement, key, name, propertyVisibility, timestamp, visibility, authorizations);
}
@Override
public void markPropertyVisible(Property property, Visibility visibility, Authorizations authorizations) {
markPropertyVisible(property, null, visibility, authorizations);
}
@Override
public Iterable getPropertyValues(String name) {
return new ConvertingIterable(getProperties(name)) {
@Override
protected Object convert(Property o) {
return o.getValue();
}
};
}
@Override
public Iterable getPropertyValues(String key, String name) {
return new ConvertingIterable(getProperties(key, name)) {
@Override
protected Object convert(Property o) {
return o.getValue();
}
};
}
@Override
public Object getPropertyValue(String name) {
Property p = getProperty(name);
return p == null ? null : p.getValue();
}
@Override
public Object getPropertyValue(String key, String name) {
Property p = getProperty(key, name);
return p == null ? null : p.getValue();
}
@Override
public Object getPropertyValue(String name, int index) {
Iterator values = getPropertyValues(name).iterator();
while (values.hasNext() && index >= 0) {
Object v = values.next();
if (index == 0) {
return v;
}
index--;
}
return null;
}
@Override
public Object getPropertyValue(String key, String name, int index) {
Iterator values = getPropertyValues(key, name).iterator();
while (values.hasNext() && index >= 0) {
Object v = values.next();
if (index == 0) {
return v;
}
index--;
}
return null;
}
@Override
public void setProperty(String name, Object value, Visibility visibility, Authorizations authorizations) {
addPropertyValue(ElementMutation.DEFAULT_KEY, name, value, visibility, authorizations);
}
@Override
public void setProperty(String name, Object value, Metadata metadata, Visibility visibility, Authorizations authorizations) {
addPropertyValue(ElementMutation.DEFAULT_KEY, name, value, metadata, visibility, authorizations);
}
@Override
public void addPropertyValue(String key, String name, Object value, Visibility visibility, Authorizations authorizations) {
addPropertyValue(key, name, value, null, visibility, authorizations);
}
@Override
public Property getProperty(String key, String name) {
return getProperty(key, name, null);
}
@Override
public Property getProperty(String key, String name, Visibility visibility) {
if (ID_PROPERTY_NAME.equals(name)) {
return getIdProperty();
} else if (Edge.LABEL_PROPERTY_NAME.equals(name) && this instanceof Edge) {
return getEdgeLabelProperty();
}
for (Property p : getProperties()) {
if (!p.getKey().equals(key)) {
continue;
}
if (!p.getName().equals(name)) {
continue;
}
if (visibility == null) {
return p;
}
if (!visibility.equals(p.getVisibility())) {
continue;
}
return p;
}
return null;
}
@Override
public Property getProperty(String name, Visibility visibility) {
return getProperty(ElementMutation.DEFAULT_KEY, name, visibility);
}
@Override
public Property getProperty(String name) {
Iterator propertiesWithName = getProperties(name).iterator();
if (propertiesWithName.hasNext()) {
return propertiesWithName.next();
}
return null;
}
@Override
public Iterable getProperties(final String name) {
if (ID_PROPERTY_NAME.equals(name)) {
ArrayList result = new ArrayList<>();
result.add(getIdProperty());
return result;
} else if (Edge.LABEL_PROPERTY_NAME.equals(name) && this instanceof Edge) {
ArrayList result = new ArrayList<>();
result.add(getEdgeLabelProperty());
return result;
}
return new FilterIterable(getProperties()) {
@Override
protected boolean isIncluded(Property property) {
return property.getName().equals(name);
}
};
}
@Override
public Iterable getProperties(final String key, final String name) {
if (ID_PROPERTY_NAME.equals(name)) {
ArrayList result = new ArrayList<>();
result.add(getIdProperty());
return result;
} else if (Edge.LABEL_PROPERTY_NAME.equals(name) && this instanceof Edge) {
ArrayList result = new ArrayList<>();
result.add(getEdgeLabelProperty());
return result;
}
return new FilterIterable(getProperties()) {
@Override
protected boolean isIncluded(Property property) {
return property.getName().equals(name) && property.getKey().equals(key);
}
};
}
@Override
public void addPropertyValue(String key, String name, Object value, Metadata metadata, Visibility visibility, Authorizations authorizations) {
addPropertyValue(key, name, value, metadata, visibility, null, true, authorizations);
}
public void addPropertyValue(String key, String name, Object value, Metadata metadata, Visibility visibility, Long timestamp, boolean indexAfterAdd, Authorizations authorizations) {
getGraph().addPropertyValue(this, inMemoryTableElement, key, name, value, metadata, visibility, timestamp, authorizations);
if (indexAfterAdd) {
getGraph().getSearchIndex().addElement(getGraph(), this, authorizations);
}
}
@Override
public boolean isHidden(Authorizations authorizations) {
return inMemoryTableElement.isHidden(authorizations);
}
@Override
public Iterable getProperties() {
return inMemoryTableElement.getProperties(includeHidden, endTime, authorizations);
}
@Override
public Iterable getHistoricalPropertyValues(Authorizations authorizations) {
return getHistoricalPropertyValues(null, null, authorizations);
}
@Override
public Iterable getHistoricalPropertyValues(Long startTime, Long endTime, Authorizations authorizations) {
return getHistoricalPropertyValues(null, null, null, startTime, endTime, authorizations);
}
@Override
public Iterable getHistoricalPropertyValues(String key, String name, Visibility visibility, Long startTime, Long endTime, Authorizations authorizations) {
return inMemoryTableElement.getHistoricalPropertyValues(key, name, visibility, startTime, endTime, authorizations);
}
@Override
public Iterable getHistoricalPropertyValues(String key, String name, Visibility visibility, Authorizations authorizations) {
return getHistoricalPropertyValues(key, name, visibility, null, null, authorizations);
}
@Override
public abstract ExistingElementMutation prepareMutation();
@Override
public void mergeProperties(Element element) {
// since the backing store is shared there is no need to do this
}
@Override
public Authorizations getAuthorizations() {
return this.authorizations;
}
@Override
public InMemoryGraph getGraph() {
return this.graph;
}
void updatePropertiesInternal(VertexBuilder vertexBuilder) {
updatePropertiesInternal(
vertexBuilder.getProperties(),
vertexBuilder.getPropertyDeletes(),
vertexBuilder.getPropertySoftDeletes(),
vertexBuilder.getIndexHint()
);
}
void updatePropertiesInternal(EdgeBuilderBase edgeBuilder) {
updatePropertiesInternal(
edgeBuilder.getProperties(),
edgeBuilder.getPropertyDeletes(),
edgeBuilder.getPropertySoftDeletes(),
edgeBuilder.getIndexHint()
);
}
protected void updatePropertiesInternal(
Iterable properties,
Iterable propertyDeleteMutations,
Iterable propertySoftDeleteMutations,
IndexHint indexHint
) {
long timestamp = IncreasingTime.currentTimeMillis();
for (Property property : properties) {
addPropertyValue(property.getKey(), property.getName(), property.getValue(), property.getMetadata(), property.getVisibility(), property.getTimestamp(), false, authorizations);
}
for (PropertyDeleteMutation propertyDeleteMutation : propertyDeleteMutations) {
deleteProperty(propertyDeleteMutation.getKey(), propertyDeleteMutation.getName(), propertyDeleteMutation.getVisibility(), authorizations);
}
for (PropertySoftDeleteMutation propertySoftDeleteMutation : propertySoftDeleteMutations) {
softDeleteProperty(propertySoftDeleteMutation.getKey(), propertySoftDeleteMutation.getName(), timestamp, propertySoftDeleteMutation.getVisibility(), indexHint, authorizations);
}
}
protected void saveExistingElementMutation(ExistingElementMutationImpl mutation, IndexHint indexHint, Authorizations authorizations) {
if (mutation.getElement() != this) {
throw new VertexiumException("cannot save mutation from another element");
}
graph.alterElementPropertyMetadata(inMemoryTableElement, mutation.getSetPropertyMetadatas(), authorizations);
graph.alterElementPropertyVisibilities(inMemoryTableElement, mutation.getAlterPropertyVisibilities(), authorizations);
Iterable properties = mutation.getProperties();
Iterable propertyDeleteMutations = mutation.getPropertyDeletes();
Iterable propertySoftDeleteMutations = mutation.getPropertySoftDeletes();
overridePropertyTimestamps(properties);
updatePropertiesInternal(
properties,
propertyDeleteMutations,
propertySoftDeleteMutations,
indexHint
);
InMemoryGraph graph = getGraph();
if (mutation.getNewElementVisibility() != null) {
graph.alterElementVisibility(inMemoryTableElement, mutation.getNewElementVisibility());
}
if (mutation instanceof EdgeMutation) {
EdgeMutation edgeMutation = (EdgeMutation) (ElementMutation) mutation;
if (edgeMutation.getNewEdgeLabel() != null) {
graph.alterEdgeLabel((InMemoryTableEdge) inMemoryTableElement, edgeMutation.getNewEdgeLabel());
}
}
}
@Override
public int hashCode() {
return getId().hashCode();
}
@Override
public boolean equals(Object obj) {
if (obj instanceof Element) {
Element objElem = (Element) obj;
return getId().equals(objElem.getId());
}
return super.equals(obj);
}
@Override
public String toString() {
if (this instanceof Edge) {
Edge edge = (Edge) this;
return getId() + ":[" + edge.getVertexId(Direction.OUT) + "-" + edge.getLabel() + "->" + edge.getVertexId(Direction.IN) + "]";
}
return getId();
}
protected void saveMutationToSearchIndex(
Element element,
Visibility oldVisibility,
Visibility newVisibility,
List alterPropertyVisibilities,
Authorizations authorizations
) {
if (alterPropertyVisibilities != null && alterPropertyVisibilities.size() > 0) {
for (AlterPropertyVisibility apv : alterPropertyVisibilities) {
Visibility existingVisibility = apv.getExistingVisibility();
getGraph().getSearchIndex().deleteProperty(getGraph(), element, apv.getKey(), apv.getName(), existingVisibility, authorizations);
}
getGraph().getSearchIndex().flush(getGraph());
}
if (newVisibility != null) {
getGraph().getSearchIndex().alterElementVisibility(getGraph(), element, oldVisibility, newVisibility, authorizations);
} else {
getGraph().getSearchIndex().addElement(getGraph(), element, authorizations);
}
}
public boolean canRead(Authorizations authorizations) {
return inMemoryTableElement.canRead(authorizations);
}
@Override
public Iterable getHiddenVisibilities() {
return inMemoryTableElement.getHiddenVisibilities();
}
private void overridePropertyTimestamps(Iterable properties) {
for (Property property : properties) {
if (property instanceof MutableProperty) {
((MutableProperty) property).setTimestamp(IncreasingTime.currentTimeMillis());
}
}
}
protected boolean isIncludeHidden() {
return includeHidden;
}
protected EnumSet getFetchHints() {
return isIncludeHidden() ? FetchHint.ALL_INCLUDING_HIDDEN : FetchHint.ALL;
}
protected InMemoryTableElement getInMemoryTableElement() {
return inMemoryTableElement;
}
protected void setInMemoryTableElement(InMemoryTableElement inMemoryTableElement) {
this.inMemoryTableElement = inMemoryTableElement;
}
}
