| /* |
| * 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.server.core.uri; |
| |
| import java.util.List; |
| |
| import org.apache.olingo.commons.api.data.Entity; |
| import org.apache.olingo.commons.api.data.Property; |
| import org.apache.olingo.commons.api.edm.Edm; |
| import org.apache.olingo.commons.api.edm.EdmEntitySet; |
| import org.apache.olingo.commons.api.edm.EdmEntityType; |
| import org.apache.olingo.commons.api.edm.EdmKeyPropertyRef; |
| import org.apache.olingo.commons.api.edm.EdmPrimitiveType; |
| import org.apache.olingo.commons.api.edm.EdmPrimitiveTypeException; |
| import org.apache.olingo.commons.api.edm.EdmProperty; |
| import org.apache.olingo.commons.api.edm.EdmStructuredType; |
| import org.apache.olingo.commons.core.Encoder; |
| import org.apache.olingo.server.api.ODataLibraryException; |
| import org.apache.olingo.server.api.deserializer.DeserializerException; |
| import org.apache.olingo.server.api.deserializer.DeserializerException.MessageKeys; |
| import org.apache.olingo.server.api.serializer.SerializerException; |
| import org.apache.olingo.server.api.uri.UriHelper; |
| import org.apache.olingo.server.api.uri.UriParameter; |
| import org.apache.olingo.server.api.uri.UriResource; |
| import org.apache.olingo.server.api.uri.UriResourceEntitySet; |
| import org.apache.olingo.server.api.uri.UriResourceKind; |
| import org.apache.olingo.server.api.uri.queryoption.ExpandOption; |
| import org.apache.olingo.server.api.uri.queryoption.SelectOption; |
| import org.apache.olingo.server.core.ODataImpl; |
| import org.apache.olingo.server.core.serializer.utils.ContextURLHelper; |
| import org.apache.olingo.server.core.uri.parser.Parser; |
| |
| public class UriHelperImpl implements UriHelper { |
| |
| @Override |
| public String buildContextURLSelectList(final EdmStructuredType type, |
| final ExpandOption expand, final SelectOption select) throws SerializerException { |
| return ContextURLHelper.buildSelectList(type, expand, select); |
| } |
| |
| @Override |
| public String buildContextURLKeyPredicate(final List<UriParameter> keys) throws SerializerException { |
| return ContextURLHelper.buildKeyPredicate(keys); |
| } |
| |
| @Override |
| public String buildCanonicalURL(final EdmEntitySet edmEntitySet, final Entity entity) throws SerializerException { |
| return edmEntitySet.getName() + '(' + buildKeyPredicate(edmEntitySet.getEntityType(), entity) + ')'; |
| } |
| |
| @Override |
| public String buildKeyPredicate(final EdmEntityType edmEntityType, final Entity entity) throws SerializerException { |
| StringBuilder result = new StringBuilder(); |
| final List<String> keyNames = edmEntityType.getKeyPredicateNames(); |
| boolean first = true; |
| for (final String keyName : keyNames) { |
| EdmKeyPropertyRef refType = edmEntityType.getKeyPropertyRef(keyName); |
| if (first) { |
| first = false; |
| } else { |
| result.append(','); |
| } |
| if (keyNames.size() > 1) { |
| result.append(Encoder.encode(keyName)).append('='); |
| } |
| final EdmProperty edmProperty = refType.getProperty(); |
| if (edmProperty == null) { |
| throw new SerializerException("Property not found (possibly an alias): " + keyName, |
| SerializerException.MessageKeys.MISSING_PROPERTY, keyName); |
| } |
| final EdmPrimitiveType type = (EdmPrimitiveType) edmProperty.getType(); |
| final Object propertyValue = findPropertyRefValue(entity, refType); |
| try { |
| final String value = type.toUriLiteral( |
| type.valueToString(propertyValue, |
| edmProperty.isNullable(), edmProperty.getMaxLength(), |
| edmProperty.getPrecision(), edmProperty.getScale(), edmProperty.isUnicode())); |
| result.append(Encoder.encode(value)); |
| } catch (final EdmPrimitiveTypeException e) { |
| throw new SerializerException("Wrong key value!", e, |
| SerializerException.MessageKeys.WRONG_PROPERTY_VALUE, edmProperty.getName(), |
| propertyValue != null ? propertyValue.toString(): null); |
| } |
| } |
| return result.toString(); |
| } |
| |
| private Object findPropertyRefValue(Entity entity, EdmKeyPropertyRef refType) throws SerializerException { |
| final int INDEX_ERROR_CODE = -1; |
| final String propertyPath = refType.getName(); |
| String tmpPropertyName; |
| int lastIndex; |
| int index = propertyPath.indexOf('/'); |
| if (index == INDEX_ERROR_CODE) { |
| index = propertyPath.length(); |
| } |
| tmpPropertyName = propertyPath.substring(0, index); |
| //get first property |
| Property prop = entity.getProperty(tmpPropertyName); |
| //get following properties |
| while (index < propertyPath.length()) { |
| lastIndex = ++index; |
| index = propertyPath.indexOf('/', index+1); |
| if (index == INDEX_ERROR_CODE) { |
| index = propertyPath.length(); |
| } |
| tmpPropertyName = propertyPath.substring(lastIndex, index); |
| prop = findProperty(tmpPropertyName, prop.asComplex().getValue()); |
| } |
| if (prop == null) { |
| throw new SerializerException("Key Value Cannot be null for property: " + propertyPath, |
| SerializerException.MessageKeys.NULL_PROPERTY, propertyPath); |
| } |
| return prop.getValue(); |
| } |
| |
| private Property findProperty(final String propertyName, final List<Property> properties) { |
| for (final Property property : properties) { |
| if (propertyName.equals(property.getName())) { |
| return property; |
| } |
| } |
| return null; |
| } |
| |
| @Override |
| public UriResourceEntitySet parseEntityId(final Edm edm, final String entityId, final String rawServiceRoot) |
| throws DeserializerException { |
| |
| String oDataPath = entityId; |
| if (rawServiceRoot != null && entityId.startsWith(rawServiceRoot)) { |
| oDataPath = entityId.substring(rawServiceRoot.length()); |
| } |
| oDataPath = oDataPath.startsWith("/") ? oDataPath : "/" + oDataPath; |
| |
| try { |
| final List<UriResource> uriResourceParts = |
| new Parser(edm, new ODataImpl()).parseUri(oDataPath, null, null, rawServiceRoot).getUriResourceParts(); |
| if (uriResourceParts.size() == 1 && uriResourceParts.get(0).getKind() == UriResourceKind.entitySet) { |
| final UriResourceEntitySet entityUriResource = (UriResourceEntitySet) uriResourceParts.get(0); |
| |
| return entityUriResource; |
| } |
| |
| throw new DeserializerException("Invalid entity binding link", MessageKeys.INVALID_ENTITY_BINDING_LINK, |
| entityId); |
| } catch (final ODataLibraryException e) { |
| throw new DeserializerException("Invalid entity binding link", e, MessageKeys.INVALID_ENTITY_BINDING_LINK, |
| entityId); |
| } |
| } |
| } |