| /* |
| * 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.olingo.commons.core.edm.primitivetype; |
| |
| import java.util.regex.Pattern; |
| |
| import org.apache.olingo.commons.api.edm.EdmPrimitiveTypeException; |
| |
| /** |
| * Implementation of the EDM primitive type String. |
| */ |
| public final class EdmString extends SingletonPrimitiveType { |
| |
| private static final Pattern PATTERN_ASCII = Pattern.compile("\\p{ASCII}*"); |
| |
| private static final EdmString INSTANCE = new EdmString(); |
| |
| { |
| uriPrefix = "'"; |
| uriSuffix = "'"; |
| } |
| |
| public static EdmString getInstance() { |
| return INSTANCE; |
| } |
| |
| @Override |
| public Class<?> getDefaultType() { |
| return String.class; |
| } |
| |
| @Override |
| protected <T> T internalValueOfString(final String value, |
| final Boolean isNullable, final Integer maxLength, final Integer precision, |
| final Integer scale, final Boolean isUnicode, final Class<T> returnType) throws EdmPrimitiveTypeException { |
| |
| if (isUnicode != null && !isUnicode && !PATTERN_ASCII.matcher(value).matches() |
| || maxLength != null && maxLength < value.length()) { |
| throw new EdmPrimitiveTypeException("The literal '" + value + "' does not match the facets' constraints."); |
| } |
| |
| if (returnType.isAssignableFrom(String.class)) { |
| return returnType.cast(value); |
| } else { |
| throw new EdmPrimitiveTypeException("The value type " + returnType + " is not supported."); |
| } |
| } |
| |
| @Override |
| protected <T> String internalValueToString(final T value, |
| final Boolean isNullable, final Integer maxLength, final Integer precision, |
| final Integer scale, final Boolean isUnicode) throws EdmPrimitiveTypeException { |
| |
| final String result = value instanceof String ? (String) value : String.valueOf(value); |
| |
| if (isUnicode != null && !isUnicode && !PATTERN_ASCII.matcher(result).matches() |
| || maxLength != null && maxLength < result.length()) { |
| throw new EdmPrimitiveTypeException("The value '" + value + "' does not match the facets' constraints."); |
| } |
| |
| return result; |
| } |
| |
| @Override |
| public String toUriLiteral(final String literal) { |
| if (literal == null) { |
| return null; |
| } |
| |
| final int length = literal.length(); |
| |
| final StringBuilder uriLiteral = new StringBuilder(length + 2); |
| uriLiteral.append(uriPrefix); |
| for (int i = 0; i < length; i++) { |
| final char c = literal.charAt(i); |
| if (c == '\'') { |
| uriLiteral.append(c); |
| } |
| uriLiteral.append(c); |
| } |
| uriLiteral.append(uriSuffix); |
| return uriLiteral.toString(); |
| } |
| |
| @Override |
| public String fromUriLiteral(final String literal) throws EdmPrimitiveTypeException { |
| return literal == null ? null : super.fromUriLiteral(literal).replace("''", "'"); |
| } |
| } |