Examples with AttributeExpressionMappingType eu.esdihumboldt.hale.io.appschema.impl.internal.generated.app_schema.AttributeExpressionMappingType used on opensource projects

Example 1 with AttributeExpressionMappingType

use of eu.esdihumboldt.hale.io.appschema.impl.internal.generated.app_schema.AttributeExpressionMappingType in project hale by halestudio.

the class AbstractPropertyTransformationHandler method handleAsGeometryGmlId.

/**
 * This method is invoked when the target property's parent is a geometry
 * and the target property is <code>gml:id</code> (which needs special
 * handling).
 *
 * <p>
 * In practice, this means that <code>&lt;idExpression&gt;</code> is used in
 * place of:
 *
 * <pre>
 *   &lt;ClientProperty&gt;
 *     &lt;name&gt;...&lt;/name&gt;
 *     &lt;value&gt;...&lt;/value&gt;
 *   &lt;/ClientProperty&gt;
 * </pre>
 *
 * @param featureType the target feature type
 * @param mappingName the target feature type's mapping name (may be
 *            <code>null</code>)
 * @param context the app-schema mapping context
 */
protected void handleAsGeometryGmlId(TypeDefinition featureType, String mappingName, AppSchemaMappingContext context) {
    PropertyEntityDefinition targetPropertyEntityDef = targetProperty.getDefinition();
    PropertyEntityDefinition geometry = (PropertyEntityDefinition) AlignmentUtil.getParent(targetPropertyEntityDef);
    createGeometryAttributeMapping(featureType, mappingName, geometry, context);
    // set id expression
    AttributeExpressionMappingType idExpression = new AttributeExpressionMappingType();
    idExpression.setOCQL(getSourceExpressionAsCQL());
    // TODO: not sure whether any CQL expression can be used here
    attributeMapping.setIdExpression(idExpression);
}

Example 2 with AttributeExpressionMappingType

use of eu.esdihumboldt.hale.io.appschema.impl.internal.generated.app_schema.AttributeExpressionMappingType in project hale by halestudio.

the class AbstractPropertyTransformationHandler method handleAsXmlElement.

/**
 * This method is invoked when the target property is a regular XML element.
 *
 * @param featureType the target feature type
 * @param mappingName the target feature type's mapping name (may be
 *            <code>null</code>)
 * @param context the app-schema mapping context
 */
protected void handleAsXmlElement(TypeDefinition featureType, String mappingName, AppSchemaMappingContext context) {
    PropertyEntityDefinition targetPropertyEntityDef = targetProperty.getDefinition();
    PropertyDefinition targetPropertyDef = targetPropertyEntityDef.getDefinition();
    TypeDefinition targetPropertyType = targetPropertyDef.getPropertyType();
    if (isGeometryType(targetPropertyType)) {
        handleXmlElementAsGeometryType(featureType, mappingName, context);
    } else {
        attributeMapping = context.getOrCreateAttributeMapping(featureType, mappingName, targetPropertyEntityDef.getPropertyPath());
        List<ChildContext> targetPropertyPath = targetPropertyEntityDef.getPropertyPath();
        // set target attribute
        attributeMapping.setTargetAttribute(mapping.buildAttributeXPath(featureType, targetPropertyPath));
    }
    // set source expression
    AttributeExpressionMappingType sourceExpression = new AttributeExpressionMappingType();
    // TODO: is this general enough?
    sourceExpression.setOCQL(getSourceExpressionAsCQL());
    attributeMapping.setSourceExpression(sourceExpression);
    if (AppSchemaMappingUtils.isMultiple(targetPropertyDef)) {
        attributeMapping.setIsMultiple(true);
    }
    // (i.e. null if source expression is NOT null, and viceversa)
    if (isNillable(targetPropertyDef)) {
        addOrReplaceXsiNilAttribute(attributeMapping.getSourceExpression().getOCQL(), false, context);
    }
// TODO: isList?
// TODO: targetAttributeNode?
// TODO: encodeIfEmpty?
}

Example 3 with AttributeExpressionMappingType

use of eu.esdihumboldt.hale.io.appschema.impl.internal.generated.app_schema.AttributeExpressionMappingType in project hale by halestudio.

the class AbstractPropertyTransformationHandler method handleAsFeatureGmlId.

/**
 * This method is invoked when the target type is the feature type owning
 * this attribute mapping, and the target property is <code>gml:id</code>,
 * which needs special handling.
 *
 * <p>
 * In practice, this means that <code>&lt;idExpression&gt;</code> is used in
 * place of:
 *
 * <pre>
 *   &lt;ClientProperty&gt;
 *     &lt;name&gt;...&lt;/name&gt;
 *     &lt;value&gt;...&lt;/value&gt;
 *   &lt;/ClientProperty&gt;
 * </pre>
 *
 * and that the target attribute is set to the mapped feature type name.
 *
 * </p>
 *
 * @param featureType the target feature type
 * @param mappingName the target feature type's mapping name (may be
 *            <code>null</code>)
 * @param context the app-schema mapping context
 */
protected void handleAsFeatureGmlId(TypeDefinition featureType, String mappingName, AppSchemaMappingContext context) {
    PropertyEntityDefinition targetPropertyEntityDef = targetProperty.getDefinition();
    List<ChildContext> gmlIdPath = targetPropertyEntityDef.getPropertyPath();
    attributeMapping = context.getOrCreateAttributeMapping(featureType, mappingName, gmlIdPath);
    // set targetAttribute to feature type qualified name
    attributeMapping.setTargetAttribute(featureTypeMapping.getTargetElement());
    // set id expression
    AttributeExpressionMappingType idExpression = new AttributeExpressionMappingType();
    idExpression.setOCQL(getSourceExpressionAsCQL());
    // TODO: not sure whether any CQL expression can be used here
    attributeMapping.setIdExpression(idExpression);
}

Example 4 with AttributeExpressionMappingType

use of eu.esdihumboldt.hale.io.appschema.impl.internal.generated.app_schema.AttributeExpressionMappingType in project hale by halestudio.

the class JoinHandler method handleTypeTransformation.

/**
 * @see eu.esdihumboldt.hale.io.appschema.writer.internal.TypeTransformationHandler#handleTypeTransformation(eu.esdihumboldt.hale.common.align.model.Cell,
 *      eu.esdihumboldt.hale.io.appschema.writer.internal.mapping.AppSchemaMappingContext)
 */
@Override
public FeatureTypeMapping handleTypeTransformation(Cell typeCell, AppSchemaMappingContext context) {
    AppSchemaMappingWrapper mapping = context.getMappingWrapper();
    Alignment alignment = context.getAlignment();
    FeatureChaining featureChaining = context.getFeatureChaining();
    final JoinParameter joinParameter = typeCell.getTransformationParameters().get(PARAMETER_JOIN).get(0).as(JoinParameter.class);
    String validation = joinParameter.validate();
    if (validation != null)
        throw new IllegalArgumentException("Join parameter invalid: " + validation);
    // check only single predicate conditions have been used
    int[] conditionCount = new int[joinParameter.getTypes().size()];
    List<JoinCondition> joinConditions = getSortedJoinConditions(joinParameter);
    for (JoinCondition joinCondition : joinConditions) {
        TypeEntityDefinition joinType = AlignmentUtil.getTypeEntity(joinCondition.joinProperty);
        int typeIdx = joinParameter.getTypes().indexOf(joinType);
        conditionCount[typeIdx]++;
        if (conditionCount[typeIdx] > 1) {
            throw new IllegalArgumentException("Only single condition joins are supported so far");
        }
    }
    FeatureTypeMapping topMostMapping = null;
    for (int chainIdx = 0; chainIdx < joinParameter.getTypes().size() - 1; chainIdx++) {
        ChainConfiguration previousChainConf = null;
        ChainConfiguration chainConf = null;
        if (featureChaining != null) {
            chainConf = featureChaining.getChain(typeCell.getId(), chainIdx);
            if (chainConf != null && chainConf.getPrevChainIndex() >= 0) {
                previousChainConf = featureChaining.getChain(typeCell.getId(), chainConf.getPrevChainIndex());
            }
        }
        // join is done pair-wise: I assume the first type is the container
        // type, whereas the second type is nested in the first
        JoinCondition joinCondition = joinConditions.get(chainIdx);
        baseProperty = joinCondition.baseProperty;
        joinProperty = joinCondition.joinProperty;
        TypeEntityDefinition containerType = AlignmentUtil.getTypeEntity(baseProperty);
        TypeEntityDefinition nestedType = AlignmentUtil.getTypeEntity(joinProperty);
        // build FeatureTypeMapping for container type
        // Entity containerTypeTarget = typeCell.getTarget().values().iterator().next();
        // TypeDefinition containerTypeTargetType = containerTypeTarget.getDefinition().getType();
        EntityDefinition containerTypeTarget = null;
        TypeDefinition containerTypeTargetType = null;
        String containerTypeTargetMappingName = null;
        if (previousChainConf == null) {
            containerTypeTarget = getTargetType(typeCell).getDefinition();
            containerTypeTargetType = containerTypeTarget.getType();
        } else {
            containerTypeTarget = previousChainConf.getNestedTypeTarget();
            containerTypeTargetType = previousChainConf.getNestedTypeTarget().getDefinition().getPropertyType();
            containerTypeTargetMappingName = previousChainConf.getMappingName();
        }
        String containerMappingName = null;
        if (previousChainConf != null) {
            containerMappingName = previousChainConf.getMappingName();
        }
        FeatureTypeMapping containerFTMapping = context.getOrCreateFeatureTypeMapping(containerTypeTargetType, containerMappingName);
        containerFTMapping.setSourceType(containerType.getDefinition().getName().getLocalPart());
        // build FeatureTypeMapping for nested type
        TypeDefinition nestedFT = null;
        List<ChildContext> nestedFTPath = null;
        FeatureTypeMapping nestedFTMapping = null;
        if (chainConf != null) {
            nestedFT = chainConf.getNestedTypeTarget().getDefinition().getPropertyType();
            nestedFTPath = chainConf.getNestedTypeTarget().getPropertyPath();
            // remove last element
            nestedFTPath = nestedFTPath.subList(0, nestedFTPath.size() - 1);
            nestedFTMapping = context.getOrCreateFeatureTypeMapping(nestedFT, chainConf.getMappingName());
            nestedFTMapping.setSourceType(nestedType.getDefinition().getName().getLocalPart());
        } else {
            if (joinParameter.getTypes().size() > 2) {
                throw new IllegalArgumentException("If no feature chaining configuration is provided, only join between 2 types is supported");
            }
            // do your best to figure it out on your own... good luck!
            Collection<? extends Cell> propertyCells = alignment.getPropertyCells(typeCell);
            for (Cell propertyCell : propertyCells) {
                Property sourceProperty = AppSchemaMappingUtils.getSourceProperty(propertyCell);
                if (sourceProperty != null) {
                    TypeDefinition sourceType = sourceProperty.getDefinition().getDefinition().getParentType();
                    if (sourceType.getName().equals(nestedType.getDefinition().getName())) {
                        // source property belongs to nested type: determine
                        // target type
                        Property targetProperty = getTargetProperty(propertyCell);
                        // nestedFT =
                        // findOwningFeatureType(targetProperty.getDefinition());
                        nestedFT = findOwningType(targetProperty.getDefinition(), context.getRelevantTargetTypes());
                        if (nestedFT != null && !nestedFT.getName().equals(containerTypeTargetType.getName())) {
                            // target property belongs to a feature type
                            // different from the already mapped one: build
                            // a new mapping
                            nestedFTPath = findOwningTypePath(targetProperty.getDefinition(), context.getRelevantTargetTypes());
                            nestedFTMapping = context.getOrCreateFeatureTypeMapping(nestedFT);
                            nestedFTMapping.setSourceType(nestedType.getDefinition().getName().getLocalPart());
                            // in the join
                            break;
                        } else if (isHRefAttribute(targetProperty.getDefinition().getDefinition())) {
                            // check if target property is a href attribute
                            Property hrefProperty = targetProperty;
                            List<ChildContext> hrefPropertyPath = hrefProperty.getDefinition().getPropertyPath();
                            List<ChildContext> hrefContainerPath = hrefPropertyPath.subList(0, hrefPropertyPath.size() - 1);
                            TypeDefinition hrefParentType = hrefProperty.getDefinition().getDefinition().getParentType();
                            // TypeDefinition childFT =
                            // findChildFeatureType(hrefParentType);
                            TypeDefinition childFT = AppSchemaMappingUtils.findChildType(hrefParentType, context.getRelevantTargetTypes());
                            if (childFT != null) {
                                nestedFTPath = hrefContainerPath;
                                nestedFTMapping = context.getOrCreateFeatureTypeMapping(childFT);
                                nestedFTMapping.setSourceType(nestedType.getDefinition().getName().getLocalPart());
                                // involved in the join
                                break;
                            }
                        }
                    }
                }
            }
        }
        // build join mapping
        if (nestedFTMapping != null && nestedFTPath != null) {
            AttributeMappingType containerJoinMapping = context.getOrCreateAttributeMapping(containerTypeTargetType, containerTypeTargetMappingName, nestedFTPath);
            containerJoinMapping.setTargetAttribute(mapping.buildAttributeXPath(containerTypeTargetType, nestedFTPath));
            // set isMultiple attribute
            PropertyDefinition targetPropertyDef = nestedFTPath.get(nestedFTPath.size() - 1).getChild().asProperty();
            if (AppSchemaMappingUtils.isMultiple(targetPropertyDef)) {
                containerJoinMapping.setIsMultiple(true);
            }
            AttributeExpressionMappingType containerSourceExpr = new AttributeExpressionMappingType();
            // join column extracted from join condition
            containerSourceExpr.setOCQL(baseProperty.getDefinition().getName().getLocalPart());
            containerSourceExpr.setLinkElement(getLinkElementValue(nestedFTMapping));
            String linkField = context.getUniqueFeatureLinkAttribute(nestedFT, nestedFTMapping.getMappingName());
            containerSourceExpr.setLinkField(linkField);
            containerJoinMapping.setSourceExpression(containerSourceExpr);
            AttributeMappingType nestedJoinMapping = new AttributeMappingType();
            AttributeExpressionMappingType nestedSourceExpr = new AttributeExpressionMappingType();
            // join column extracted from join condition
            nestedSourceExpr.setOCQL(joinProperty.getDefinition().getName().getLocalPart());
            nestedJoinMapping.setSourceExpression(nestedSourceExpr);
            nestedJoinMapping.setTargetAttribute(linkField);
            nestedFTMapping.getAttributeMappings().getAttributeMapping().add(nestedJoinMapping);
        }
        if (chainIdx == 0) {
            topMostMapping = containerFTMapping;
        }
    }
    return topMostMapping;
}

Example 5 with AttributeExpressionMappingType

use of eu.esdihumboldt.hale.io.appschema.impl.internal.generated.app_schema.AttributeExpressionMappingType in project hale by halestudio.

the class AppSchemaMappingWrapper method cloneAttributeExpression.

static AttributeExpressionMappingType cloneAttributeExpression(AttributeExpressionMappingType attrExpression) {
    if (attrExpression == null) {
        return attrExpression;
    }
    AttributeExpressionMappingType clone = new AttributeExpressionMappingType();
    if (attrExpression.getExpression() != null) {
        clone.setExpression(new Expression());
        // TODO: Expression is xs:anyType, how can I make a copy of it?
        clone.getExpression().setExpression(attrExpression.getExpression().getExpression());
    }
    clone.setIndex(attrExpression.getIndex());
    clone.setInputAttribute(attrExpression.getInputAttribute());
    clone.setLinkElement(attrExpression.getLinkElement());
    clone.setLinkField(attrExpression.getLinkField());
    clone.setOCQL(attrExpression.getOCQL());
    return clone;
}