Examples with Transformer org.structr.schema.Transformer used on opensource projects

Example 1 with Transformer

use of org.structr.schema.Transformer in project structr by structr.

the class AbstractPrimitiveProperty method setProperty.

@Override
public Object setProperty(final SecurityContext securityContext, final GraphObject obj, final T value) throws FrameworkException {
    final PropertyConverter converter = databaseConverter(securityContext, PropertyMap.unwrap(obj));
    Object convertedValue = value;
    if (converter != null) {
        convertedValue = converter.convert(value);
    }
    // use transformators from property
    for (final String fqcn : transformators) {
        // first test, use caching here later..
        final Transformer transformator = getTransformator(fqcn);
        if (transformator != null) {
            convertedValue = transformator.setProperty(PropertyMap.unwrap(obj), this, convertedValue);
        }
    }
    final PropertyContainer propertyContainer = obj.getPropertyContainer();
    if (propertyContainer != null) {
        if (!TransactionCommand.inTransaction()) {
            throw new NotInTransactionException("setProperty outside of transaction");
        }
        boolean internalSystemPropertiesUnlocked = (obj instanceof CreationContainer);
        // collect modified properties
        if (obj instanceof AbstractNode) {
            if (!unvalidated) {
                TransactionCommand.nodeModified(securityContext.getCachedUser(), (AbstractNode) obj, AbstractPrimitiveProperty.this, propertyContainer.hasProperty(dbName()) ? propertyContainer.getProperty(dbName()) : null, value);
            }
            internalSystemPropertiesUnlocked = ((AbstractNode) obj).internalSystemPropertiesUnlocked;
        } else if (obj instanceof AbstractRelationship) {
            if (!unvalidated) {
                TransactionCommand.relationshipModified(securityContext.getCachedUser(), (AbstractRelationship) obj, AbstractPrimitiveProperty.this, propertyContainer.hasProperty(dbName()) ? propertyContainer.getProperty(dbName()) : null, value);
            }
            internalSystemPropertiesUnlocked = ((AbstractRelationship) obj).internalSystemPropertiesUnlocked;
        }
        // catch all sorts of errors and wrap them in a FrameworkException
        try {
            // save space
            if (convertedValue == null) {
                propertyContainer.removeProperty(dbName());
            } else {
                if (!isSystemInternal() || internalSystemPropertiesUnlocked) {
                    propertyContainer.setProperty(dbName(), convertedValue);
                } else {
                    logger.warn("Tried to set internal system property {} to {}. Action was denied.", new Object[] { dbName(), convertedValue });
                }
            }
            updateAccessInformation(securityContext, propertyContainer);
        } catch (final RetryException rex) {
            // don't catch RetryException here
            throw rex;
        } catch (Throwable t) {
            // throw FrameworkException with the given cause
            final FrameworkException fex = new FrameworkException(500, "Unable to set property " + jsonName() + " on entity with ID " + obj.getUuid() + ": " + t.toString());
            fex.initCause(t);
            throw fex;
        }
        if (isIndexed()) {
            // work
            if (!isPassivelyIndexed()) {
                index(obj, convertedValue);
            }
        }
    }
    return null;
}

Example 2 with Transformer

use of org.structr.schema.Transformer in project structr by structr.

the class AbstractPrimitiveProperty method getProperty.

@Override
public T getProperty(final SecurityContext securityContext, final GraphObject obj, final boolean applyConverter, final Predicate<GraphObject> predicate) {
    Object value = null;
    final PropertyContainer propertyContainer = obj.getPropertyContainer();
    if (propertyContainer != null) {
        // this may throw a java.lang.IllegalStateException: Relationship[<id>] has been deleted in this tx
        if (propertyContainer.hasProperty(dbName())) {
            value = propertyContainer.getProperty(dbName());
        }
    }
    if (applyConverter) {
        // apply property converters
        PropertyConverter converter = databaseConverter(securityContext, PropertyMap.unwrap(obj));
        if (converter != null) {
            try {
                value = converter.revert(value);
            } catch (Throwable t) {
                logger.warn("Unable to convert property {} of type {}: {}", new Object[] { dbName(), getClass().getSimpleName(), t });
                logger.warn("", t);
            }
        }
    }
    // use transformators from property
    for (final String fqcn : transformators) {
        // first test, use caching here later..
        final Transformer transformator = getTransformator(fqcn);
        if (transformator != null) {
            value = transformator.getProperty(PropertyMap.unwrap(obj), this, value);
        }
    }
    // no value found, use schema default
    if (value == null) {
        value = defaultValue();
    }
    return (T) value;
}