| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You under the Apache License, Version 2.0 |
| * (the "License"); you may not use this file except in compliance with |
| * the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| package org.apache.vxquery.types; |
| |
| import javax.xml.namespace.QName; |
| |
| import org.apache.vxquery.context.RootStaticContextImpl; |
| import org.apache.vxquery.context.StaticContext; |
| |
| public class TypeUtils { |
| public static SequenceType createSequenceType(String str) { |
| return createSequenceType(RootStaticContextImpl.INSTANCE, str); |
| } |
| |
| public static SequenceType createSequenceType(StaticContext sCtx, String s) { |
| String str = s.trim(); |
| Quantifier q = Quantifier.QUANT_ONE; |
| if (str.endsWith("?")) { |
| q = Quantifier.QUANT_QUESTION; |
| str = str.substring(0, str.length() - 1); |
| } else if (str.endsWith("*")) { |
| q = Quantifier.QUANT_STAR; |
| str = str.substring(0, str.length() - 1); |
| } else if (str.endsWith("+")) { |
| q = Quantifier.QUANT_PLUS; |
| str = str.substring(0, str.length() - 1); |
| } |
| |
| ItemType it; |
| if (str.equals("item()")) { |
| it = AnyItemType.INSTANCE; |
| } else if (str.equals("json-item()")) { |
| it = AnyJsonItemType.INSTANCE; |
| } else if (str.equals("object()")) { |
| it = ObjectType.INSTANCE; |
| } else if (str.equals("array()")) { |
| it = ArrayType.INSTANCE; |
| } else if (str.equals("node()")) { |
| it = AnyNodeType.INSTANCE; |
| } else if (str.equals("document-node()")) { |
| it = DocumentType.ANYDOCUMENT; |
| } else if (str.equals("none")) { |
| it = NoneType.INSTANCE; |
| } else if (str.equals("element()")) { |
| it = ElementType.ANYELEMENT; |
| } else if (str.equals("empty-sequence()")) { |
| it = EmptySequenceType.INSTANCE; |
| } else { |
| int idx = str.indexOf(':'); |
| if (idx < 0) { |
| throw new IllegalStateException("QName has no prefix: " + str); |
| } |
| String prefix = str.substring(0, idx); |
| String local = str.substring(idx + 1); |
| String uri = sCtx.lookupNamespaceUri(prefix); |
| if (uri == null) { |
| throw new IllegalStateException("Prefix has no URI mapping: " + prefix); |
| } |
| QName qname = new QName(uri, local, prefix); |
| it = (ItemType) sCtx.lookupSchemaType(qname); |
| if (it == null) { |
| throw new IllegalStateException("No type found: " + qname); |
| } |
| } |
| return SequenceType.create(it, q); |
| } |
| |
| public static boolean isSubtypeTypeOf(AtomicType subType, AtomicType superType) { |
| while (true) { |
| if (subType.getTypeId() == superType.getTypeId()) { |
| return true; |
| } |
| if (subType.getTypeId() == BuiltinTypeConstants.XS_ANY_ATOMIC_TYPE_ID) { |
| return false; |
| } |
| subType = (AtomicType) subType.getBaseType(); |
| } |
| } |
| } |